Door body assembly and household equipment

Abstract

The utility model discloses a door body assembly which comprises a door body and a hinge assembly, and the door body is provided with a hinge connector device used for being connected with the hinge assembly in a matched mode. The hinge interface device comprises an end cover and an interface assembly, the end cover is fixed at the end part of the door body and is provided with a main groove and an auxiliary groove, the main groove comprises a first groove and a second groove which are communicated with each other, a first positioning part is formed on the side wall of the first groove, and a second positioning part is formed on the side wall of the second groove; the interface assembly is provided with a main interface module embedded into the main groove in a matched mode and an auxiliary interface module embedded into the auxiliary groove in a matched mode. And the main interface module is matched with the first positioning part and part of the second positioning part to form a first matching structure, or the main interface module is matched with the second positioning part to form a second matching structure. According to the utility model, the door body hinge interface is adaptive to the installation of different hinges, and the universality is improved.

Description

Technical Field

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

[0002] The door of a general household appliance is connected to the cabinet via a hinge to enable the door to be opened and closed. There are roughly two main types of hinges currently used on the market: one is a single-axis hinge with a simple principle and low material and manufacturing costs; the other is a double-axis hinge with a higher cost but better embedding effect. These two types of hinges have different connection methods on the door of the appliance. The door trim can only have a single hinge installation interface and cannot be converted. For example, for a single-axis door, only a single-axis hinge can be installed, not a double-axis hinge. Therefore, when designing and producing products, different door interface devices are required for different hinges. Because the assembly interfaces of traditional single-axis hinges and double-axis hinges on the door are different, they cannot be used interchangeably, resulting in high investment in R&D molds and increased overall machine costs. At the same time, it is also impossible to quickly convert the corresponding hinge installation interface device according to the actual needs of customers, resulting in poor flexibility. Utility Model Content

[0003] The purpose of the utility model is to provide a door body assembly and household appliance, so as to realize the installation of door body hinge interface adapting to different hinges and improve versatility.

[0004] To achieve the above object, the present invention provides a door assembly, which includes a door body and a hinge assembly, wherein the door body has a hinge interface device for cooperating with the hinge assembly;

[0005] The hinge interface device includes an end cover and an interface assembly. The end cover is fixed to the end of the door body and is provided with a main groove and a secondary groove. The main groove includes a first groove and a second groove that are interconnected. The side wall of the first groove is formed as a first positioning portion, and the side wall of the second groove is formed as a second positioning portion.

[0006] The interface assembly comprises a main interface module that fits into the main slot and a secondary interface module that fits into the secondary slot;

[0007] The main interface module cooperates with the first positioning portion and part of the second positioning portion to form a first cooperation structure, or the main interface module cooperates with the second positioning portion to form a second cooperation structure.

[0008] As a further improvement of the present invention, when the first matching structure is formed, the outer side wall of the main interface module fits the first positioning portion and partially or completely fits the second positioning portion. A circular pivot groove is provided in the middle of the main interface module, and the hinge assembly has a hinge shaft, which can be rotatably inserted into the pivot groove.

[0009] As a further improvement of the present invention, the auxiliary interface module is fitted into the auxiliary groove, and its outer side wall fits the side wall of the auxiliary groove. The auxiliary interface module also has a top wall that closes the auxiliary groove.

[0010] As a further improvement of the present invention, the interface assembly includes a substrate, the main interface module and the auxiliary interface module protrude from the substrate toward the end cover, and the auxiliary interface module has a cavity inside that opens from the top wall toward the substrate.

[0011] As a further improvement of the present invention, when the second matching structure is formed, part of the outer wall of the main interface module fits the second positioning portion, and another part of the outer wall has a certain gap with the first positioning portion.

[0012] As a further improvement of the present invention, when the second matching structure is formed, a first track groove and a second track groove are respectively provided inside the main interface module and the auxiliary interface module; the first track groove is roughly elliptical arc-shaped and extends toward the second track groove, and the second track groove is roughly U-shaped and surrounds the outside of the first track groove.

[0013] As a further improvement of the present invention, the second track groove includes a first groove segment, a second groove segment and a third groove segment which are sequentially connected and have the same groove width; the first groove segment and the third groove segment are arc-shapedly connected to the second groove segment.

[0014] As a further improvement of the present invention, the hinge assembly has a biaxial hinge, which includes a main shaft and a secondary shaft. The main shaft is inserted into the first track groove and can slide relatively in the first track groove. At the same time, the secondary shaft is inserted into the second track groove and can slide relatively in the second track groove.

[0015] As a further improvement of the present invention, the second groove is substantially in the shape of an elliptical arc, and the first groove is in the shape of a circular arc connected to the second groove and protrudes outward relative to the second groove.

[0016] To achieve the above-mentioned purpose, the present invention provides a household appliance including a box body and a door assembly as described above, wherein the door body is pivotally connected to the box body through the hinge assembly to open or close the box body.

[0017] The beneficial effects of the present invention are as follows: the door body assembly proposed in the present invention is provided with a main interface module and a sub-interface module that cooperate with the main groove and the sub-groove embedded in the end cover. The main interface module can be selected to cooperate with the first positioning part or the second positioning part of the main groove to form a first cooperation structure or a second cooperation structure according to actual needs. In this way, using the same set of door body end covers, the door body can choose to install an interface assembly adapted for a single-axis hinge or an interface assembly adapted for a double-axis hinge. It has strong versatility, does not require double mold costs, saves costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a door assembly according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A schematic structural diagram of the hinge interface device of the middle door assembly;

[0020] Figure 3 yes Figure 2 Schematic diagram of the end cap after the interface assembly is removed from the middle hinge interface device;

[0021] Figure 4 yes Figure 3 An enlarged structural diagram of the middle end cover;

[0022] Figure 5 yes Figure 3 A schematic diagram of the structure of the middle end cover from another angle;

[0023] Figure 6 yes Figure 2 An exploded schematic diagram of the middle hinge interface device forming a first mating structure;

[0024] Figure 7 yes Figure 6 A perspective view of the interface assembly when forming a first mating structure;

[0025] Figure 8 yes Figure 7 A structural diagram of the interface component from another angle;

[0026] Figure 9 yes Figure 2 A three-dimensional schematic diagram of the middle hinge interface device forming a second matching structure;

[0027] Figure 10 yes Figure 9 A three-dimensional view of the interface component of the first mating structure. DETAILED DESCRIPTION

[0028] The following is a detailed description of the present invention with reference to the accompanying drawings and embodiments. Figures 1 to 10Shown is a preferred embodiment of the present invention.

[0029] It should be understood that, unless otherwise expressly specified and limited, in this application, the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are determined based on the side of the door body of the household appliance 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 operated in a specific direction.

[0030] 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.

[0031] 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.

[0032] The utility model provides a door assembly 100 and a household appliance having the door assembly 100. Figures 1 to 10 Shown is a preferred embodiment of the present invention.

[0033] In this embodiment, the household appliance is described by taking a refrigerator as an example. It should be noted that the household appliance may also be other refrigeration equipment, disinfection equipment, or other household appliances connected by a hinge.

[0034] like Figure 1 As shown in FIG. 2 , the household appliance includes a box body and a door assembly 100 for opening or closing the box body. The door assembly includes a door body 1 and a hinge assembly. The door body 1 is pivotally connected to the box body through the hinge assembly.

[0035] The hinge assembly is connected to the top of the door body 1. It should be understood that the position where the hinge assembly is connected on the door body 1 can be set as needed. The hinge assembly can also be connected to the bottom of the door body 1, or multiple hinge assemblies can be provided to respectively connect to the top, bottom or other positions of the door body 1. This embodiment is explained by taking the hinge assembly connected to the top of the door body 1 as an example.

[0036] The door body 1 comprises a front wall 11, which is spaced away from the box body when the door body 1 is closed, and a side wall 12 perpendicularly connected to the front wall 11. The door body 1 also comprises a hinge interface device 2 for connecting with a hinge assembly; the hinge interface device 2 comprises an end cap 3 and an interface assembly 4. The end cap 3 is fixed to the end of the door body 1, corresponding to both the front wall 11 and the side wall 12.

[0037] Reference Figure 3 -4. A main groove 5 and a secondary groove 6 are provided on the end cover 3, and the main groove 5 and the secondary groove 6 are arranged to pass through from top to bottom at one end of the end cover 3. In this embodiment, one end of the main groove 5 is close to the side edge 13 where the door front wall 11 and the door side wall 12 intersect, and the other end extends in a direction away from the side edge. The middle of the secondary groove 6 is close to the end of the main groove 5 away from the side edge 13, and the two ends of the secondary groove 6 extend respectively in the direction of the door front wall 11 and the door side wall 12, so that the main groove 5 and the secondary groove 6 are arranged close to the edges of the door front wall 11 and the door side wall 12, and the structure is more compact.

[0038] The main groove 5 includes a first groove 51 and a second groove 52 that are interconnected. The second groove 52 is substantially in the shape of an elliptical arc. The first groove 51 is in the shape of a circular arc and connects to the second groove 52 and protrudes outward relative to the second groove 52 .

[0039] In this embodiment, the second groove 52 is the main part of the main groove, and the extension direction of the long axis of the elliptical arc is consistent with the extension direction of the main groove 5; the first groove 51 is arranged on the side of the second groove 52 close to the door side wall 12, and protrudes outward in an arc shape with a point inside the second groove 52 as the center of the circle.

[0040] The auxiliary groove 6 is generally U-shaped and surrounds the end of the main groove 5 away from the side edge 13. The auxiliary groove 6 includes a third groove 61, a fourth groove 62, and a fifth groove 63 that are sequentially connected to each other. The third groove 61, the fourth groove 62, and the fifth groove 63 extend from the end close to the door side wall 12 to the end away from the door side wall 12 and the end close to the door front wall 11 in sequence.

[0041] The third groove 61 includes a first curved groove section 611 protruding toward the door side wall 12 in a semicircular arc shape at one end close to the door side wall 12, a first straight groove section 612 connecting the first curved groove section 611 and extending in a straight line, and a second curved groove section 613 connecting the first straight groove section 611 and the fourth groove 62 in an arc shape.

[0042] The fourth slot 62 extends entirely along a straight line, with its extension direction obliquely intersecting the door side wall 12 and the door front wall 11 , and its extension length is greater than that of the third slot 61 and the fifth slot 63 .

[0043] The fifth groove 63 includes a third curved groove section 631 protruding toward the door front wall 11 in a semicircular arc shape at one end near the door front wall 11, and a fourth curved groove section 632 connecting the third curved groove section 631 and the fourth groove 62 in an arc shape. The arrangement of the second curved groove section 613 and the fourth curved groove section 632 can make the transition from the third groove 61 to the fourth groove 62 smoother.

[0044] The side wall of the first slot 51 of the main slot 5 is formed as a first positioning portion 53, and the side wall of the second slot 52 is formed as a second positioning portion 54. The interface component 4 has a main interface module 7 that is embedded in the main slot 5 and a secondary interface module 8 that is embedded in the secondary slot 6.

[0045] The main interface module 7 cooperates with the first positioning portion 53 and part of the second positioning portion 54 to form a first cooperation structure, or the main interface module 7 cooperates with the second positioning portion 54 to form a second cooperation structure.

[0046] On the one hand, the main interface module 7 can be set to mainly cooperate with the first positioning portion 53, and an adaptive hinge groove is set according to the shape of the first groove 51 forming the first positioning portion 53, so as to cooperate with a connection installation of a hinge on the door body; on the other hand, the main interface module 7 can also be set to mainly cooperate with the second positioning portion 54, and another adaptive hinge groove is set according to the shape of the second groove 52 forming the second positioning portion 54, so as to cooperate with the connection installation of the second hinge on the door body.

[0047] In this embodiment, the first groove 51 is arranged in a circular arc shape to connect to the second groove 52 and protrude outward relative to the second groove 52. The main interface module 7 can be equipped with a circular hinge groove inside to adapt the hinge shaft to rotate and connect in the hinge groove; the second groove 52 is roughly elliptical arc-shaped, and the main interface module 7 can also be equipped with a hinge groove inside to dock with the main shaft of the dual-axis hinge, and provide an adaptive space to meet the sliding of the dual-axis hinge in a certain trajectory in the groove.

[0048] Since the main interface module 7 can choose to form the first matching structure or the second matching structure according to actual needs, the door end cover 3 can be installed with either a single-axis hinge or a double-axis hinge, providing a user-selectable "matching solution".

[0049] Single-axis hinges and double-axis hinges can use the same set of door end covers 3. Switching can be achieved by simply designing the corresponding single-axis or double-axis door interface components 4, which simplifies the production process, eliminates the repetitive process of designing and developing multiple molds, and eliminates the need to invest double mold costs, saving costs and improving production efficiency.

[0050] Furthermore, in order to specifically illustrate that the main interface module 7 and the auxiliary interface module 8 cooperate with the end cover 3 to form the first cooperation structure and the second cooperation structure, the present utility model provides two specific embodiments.

[0051] Example 1:

[0052] refer to Figure 6 As shown in FIG. 8 , when forming the first mating structure, the door body assembly 4 is formed separately and mounted on the door body end cover 3. Specifically, the interface assembly 4 includes a base plate 9. The primary interface module 7 and the secondary interface module 8 are formed on the base plate 9 and protrude from the base plate 9 toward the end cover 3. The primary interface module 7 and the secondary interface module 8 are respectively matched and embedded in the primary slot 5 and the secondary slot 6.

[0053] In this embodiment, the main interface module 7 and the auxiliary interface module 8 are arranged on a horizontal plate-shaped substrate 9, which has stable support and a relatively fixed position. The main interface module 7 and the auxiliary interface module 8 can be directly and simultaneously embedded in the main groove 5 and the auxiliary groove 6 of the end cover 3 in a plug-in manner, which is easy to operate.

[0054] In this embodiment, the door assembly is integrally formed; that is, the main interface module 7, the auxiliary interface module 8 and the base plate 9 are integrally formed.

[0055] The outer side wall of the main interface module 7 fits in with the first positioning portion 53 and partially or completely fits in with the second positioning portion 54. The hinge assembly has a hinge shaft. In order to facilitate the relative rotation of the door body 1 and the hinge shaft, a circular pivot groove 71 is opened in the middle of the main interface module 7, and the hinge shaft can be rotatably matched and inserted in the pivot groove 71.

[0056] Specifically, the pivot groove 71 includes a groove bottom 711 and a circumferential groove wall 712 surrounding the edge of the groove bottom; the circumferential groove wall encloses a circular groove opening 713 arranged opposite to the groove bottom, and the hinge shaft passes through the circular groove opening 713 and abuts against the groove bottom 711. The circumferential groove wall 712 fits and covers the hinge shaft, so that the hinge shaft can rotate stably relative to the pivot groove 71.

[0057] As a further improvement of the present invention, the auxiliary interface module 8 is fitted into the auxiliary groove 6 , with its outer sidewall fitting the sidewall of the auxiliary groove 6 . The auxiliary interface module 8 also has a top wall 81 that closes the auxiliary groove 6 .

[0058] In this embodiment, the auxiliary interface module 8 is configured to fit the shape of the auxiliary groove 6 and be embedded in the auxiliary groove 6. The top wall 81 of the auxiliary groove 6 covers and closes the opening of the auxiliary groove 6. When adapting to the single-axis hinge, the opening of the auxiliary groove 6 can be closed to prevent dust from falling into the groove, effectively ensuring the cleanliness of the auxiliary groove 6, and avoiding the stability of the hinge shaft movement matched with it when switching the dual-axis hinge due to dust in the groove; at the same time, it can enhance the supporting strength of the end cover 3, thereby effectively ensuring the long-term smoothness of the door body 1 when opening.

[0059] As a further improvement of the present invention, the auxiliary interface module 8 has a cavity 10 inside that opens from the top wall 81 toward one side of the substrate 9. In this embodiment, the cavity 10 opens downward, and the thickness of the auxiliary interface module 8 along the groove depth direction is less than the depth of the auxiliary groove 6. The thinning of the auxiliary interface module 8 can reduce the impact of temperature changes caused by the operation of docking refrigeration equipment or other equipment, and avoid deformation of the auxiliary interface module 8 due to thermal expansion and contraction.

[0060] Example 2:

[0061] refer to Figure 9 As shown in FIG10 , when forming the second mating structure, the door assembly 4 is formed separately and mounted on the door end cover 3. Specifically, the interface assembly 4 includes a base plate 9, and the primary interface module 7 and the secondary interface module 8 are formed on the base plate 9 and protrude from the base plate 9 toward the end cover 3. The primary interface module 7 and the secondary interface module 8 are respectively matched and embedded in the primary slot 5 and the secondary slot 6.

[0062] In this embodiment, the main interface module 7 and the auxiliary interface module 8 are arranged on a horizontal plate-shaped substrate 9, which has stable support and a relatively fixed position. The main interface module 7 and the auxiliary interface module 8 can be directly and simultaneously embedded in the main groove 5 and the auxiliary groove 6 of the end cover 3 in a plug-in manner, which is easy to operate.

[0063] In this embodiment, the door assembly is integrally formed; that is, the main interface module 7, the auxiliary interface module 8 and the base plate 9 are integrally formed.

[0064] Part of the outer wall of the main interface module 7 fits in the second positioning portion 54, and another part of the outer wall is spaced apart from the first positioning portion 53. In this embodiment, the other part of the outer wall is S-shaped and fits in the outer wall of the second positioning portion 54.

[0065] In some other embodiments, another portion of the outer side wall of the main interface module 7 may also be configured to fit the first positioning portion 53 , as long as the main interface module 7 and the second positioning portion 54 are ensured to maintain a fitted and limited position.

[0066] As a further improvement of the utility model, the hinge assembly has a double-shaft hinge, the double-shaft hinge comprises a main shaft and an auxiliary shaft, in order to conveniently realize the relative rotation of the door body 1 and the double-shaft hinge, the main interface module 7 and the auxiliary interface module 8 are respectively provided with a first track groove 72 and a second track groove 82; the main shaft is inserted into the first track groove 72 and can slide relatively in the first track groove 72, and simultaneously the auxiliary shaft is inserted into the second track groove 82 and can slide relatively in the second track groove 82.

[0067] Specifically, the structure of the first track groove 72 and the second track groove 82 is same as that of the pivot groove 71, and the first track groove 72 and the second track groove 82 also have a groove bottom, a circumferential groove wall and a groove opening; the difference between the first track groove 72 and the second track groove 82 and the pivot groove 7 lies in that the shape and position of the groove are different.

[0068] The part of the first track groove 72 close to the first positioning part is in a substantially elliptical arc shape, is consistent with the shape of the second groove 52, and extends to the direction of the second track groove 82; in the embodiment, the first track groove 72 is arranged in cooperation with the shape of the second groove 52, and the extension length is about twice the groove width, so as to adapt to the movement of the main shaft of the traditional double-shaft hinge in the first track groove 72.

[0069] In order to conveniently realize that the main shaft can move along the corresponding track at the corresponding position, the interface assembly is provided with the second track groove 82 matched with the auxiliary shaft, and the movement of the auxiliary shaft in the second track groove 82 can guide the movement of the main shaft.

[0070] The second track groove 82 is substantially U-shaped and surrounds the outside of the first track groove 72, and is consistent with the shape of the auxiliary groove 6. The second track groove 82 is arranged in cooperation with the shape of the auxiliary groove 6, and adapts to the movement of the auxiliary shaft of the traditional double-shaft hinge in the second track groove 82.

[0071] As a further improvement of the utility model, the second track groove 82 comprises a first groove section 821, a second groove section 822 and a third groove section 823 which are sequentially connected and have the same groove width; the first groove section 821 and the third groove section 823 are arc-shapedly connected with the second groove section 822.

[0072] The groove wall of the first track groove 72 and the second track groove 82 is a smooth curve, and the above arrangement enables the main shaft and the auxiliary shaft to move smoothly relative to the first track groove 72 and the second track groove 82, thereby ensuring that the door body is more smooth to open, and the service life of the hinge shaft can be prolonged. In the process of opening the door body, the movement of the hinge shaft relative to the track groove is continuous and uninterrupted.

[0073] In summary, the door body assembly of the utility model, by setting up the main interface module and the vice interface module matched with the main groove and the vice groove embedded in the end cover, the main interface module can form the first cooperation structure or the second cooperation structure according to the actual need and selects the first positioning part or the second positioning part of the main groove, so, using the same set of door body end cover, the door body can select the interface assembly matched with the single shaft hinge or the interface assembly matched with the double shaft hinge, the versatility is strong, need not to invest the double mold cost, saves the cost, improves the production efficiency simultaneously.

[0074] In the embodiments provided in the utility model, it should be understood that the above-described structural embodiments are only illustrative, for example, the division of the modules is only a logical functional division, and actual implementation can have another division mode, for example, multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0075] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A door assembly, characterized in that: The door assembly includes a door body and a hinge assembly, and the door body has a hinge interface device for matching and connecting the hinge assembly; The hinge interface device includes an end cover and an interface assembly. The end cover is fixed to the end of the door body and is provided with a main groove and a secondary groove. The main groove includes a first groove and a second groove that are interconnected. The side wall of the first groove is formed as a first positioning portion, and the side wall of the second groove is formed as a second positioning portion. The interface assembly comprises a main interface module that fits into the main slot and a secondary interface module that fits into the secondary slot; The main interface module cooperates with the first positioning portion and part of the second positioning portion to form a first cooperation structure, or the main interface module cooperates with the second positioning portion to form a second cooperation structure.

2. The door assembly according to claim 1, wherein: When forming the first mating structure, the outer side wall of the main interface module fits the first positioning portion and partially or completely fits the second positioning portion. A circular pivot groove is opened in the middle of the main interface module, and the hinge assembly has a hinge shaft, which can be rotatably inserted into the pivot groove.

3. The door assembly according to claim 2, characterized in that: The auxiliary interface module is fitted into the auxiliary slot, with its outer sidewall fitting the sidewall of the auxiliary slot. The auxiliary interface module also has a top wall for closing the auxiliary slot.

4. The door assembly according to claim 3, characterized in that: The interface assembly includes a base plate, the main interface module and the auxiliary interface module protrude from the base plate toward one side of the end cover, and the auxiliary interface module has a cavity inside that opens from the top wall toward one side of the base plate.

5. The door assembly according to claim 1, wherein: When the second matching structure is formed, part of the outer wall of the main interface module fits into the second positioning portion, and a certain gap exists between the other part of the outer wall and the first positioning portion.

6. The door assembly according to claim 1, wherein: When forming the second matching structure, a first track groove and a second track groove are respectively provided inside the main interface module and the auxiliary interface module; the first track groove is roughly elliptical arc-shaped and extends toward the second track groove, and the second track groove is roughly U-shaped and surrounds the outside of the first track groove.

7. The door assembly according to claim 6, characterized in that: The second track groove comprises a first groove segment, a second groove segment and a third groove segment which are sequentially connected and have the same groove width; the first groove segment and the third groove segment are connected to the second groove segment in an arc shape.

8. The door assembly according to claim 7, wherein: The hinge assembly has a biaxial hinge, which includes a main shaft and a secondary shaft. The main shaft is inserted into the first track groove and can slide relatively in the first track groove. At the same time, the secondary shaft is inserted into the second track groove and can slide relatively in the second track groove.

9. The door assembly according to claim 1, wherein: The second groove is substantially in the shape of an elliptical arc, and the first groove is in the shape of a circular arc connected to the second groove and protrudes outward relative to the second groove.

10. A household appliance, comprising a housing, characterized in that: It also includes a door assembly as described in any one of claims 1 to 9, wherein the door is pivotally connected to the box body through the hinge assembly to open or close the box body.

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