Refrigerator
The refrigerator's drain hole and pipe system efficiently discharges dust and condensation water from the pulling space, addressing the cleaning challenges of accumulated debris in door handles.
Patent Information
- Application Number
- CN202420265016.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-02
AI Technical Summary
Dust, dirt, and condensation water easily accumulate in the handle of refrigerator door panels, making cleaning difficult due to the small and upward-facing handle mouth, which complicates maintenance.
A refrigerator design featuring a recessed pulling space in the door body with a first and second drain hole, and a sewage pipe connecting them, allowing debris and liquid to be discharged through the drain holes and pipe, facilitated by gravity and multiple pipes for enhanced discharge.
Effectively prevents debris from sticking in the pipe and simplifies cleaning by allowing direct discharge of dust and condensation water, maintaining cleanliness and hygiene.
Smart Images
Figure CN222210939U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigerator. Background Art
[0002] A refrigerator is a household or commercial electrical appliance used to refrigerate or freeze food and items. It usually uses refrigeration technology to keep the temperature at a lower level to keep the food fresh and extend its shelf life.
[0003] At present, the door panels of refrigerators are all required to be provided with handles, and for aesthetic purposes, concealed handles are provided on the upper surfaces of the door panels, and the handles are covered when the door is closed.
[0004] However, because the internal space of the handle is small and the handle mouth of the door panel is facing upward, dust, dirt and water in the refrigerator can easily fall into the handle during use, making cleaning very troublesome. Utility Model Content
[0005] The utility model solves one of the technical problems in the related art at least to a certain extent.
[0006] To this end, the present application aims to provide a refrigerator, when dust, dirt or condensation water falls into the pulling space, the solid debris can directly fall through the drain pipe; when the door body is cleaned or there is condensation water, the liquid in the pulling space can be discharged through the first drain hole, the drain pipe and the second drain hole.
[0007] In order to achieve the above object, the utility model provides a refrigerator, comprising:
[0008] A box body, one side of which is open;
[0009] A door body, which is arranged on a side of the box body with an opening, and is used to open or close the opening of the box body; the interior of the door body is hollow;
[0010] The top of the door body is recessed toward the bottom of the door body to provide a pulling space;
[0011] A first drain hole, wherein the first drain hole is provided on the inner bottom wall of the pulling space;
[0012] A second drain hole, the second drain hole is opened at the bottom of the door body;
[0013] A sewage pipe, the sewage pipe is arranged inside the door body; one end of the sewage pipe is connected to and communicated with the first sewage hole, and the other end of the sewage pipe is connected to and communicated with the second sewage hole;
[0014] The impurities in the pulling space can be discharged through the first drain hole, the drain pipe and the second drain hole.
[0015] In the technical solution, when dust, dirt or condensation water falls into the pulling space, the solid debris can fall directly through the drain pipe; when cleaning the door body or there is condensation water, the liquid in the pulling space can be discharged through the first drain hole, the drain pipe and the second drain hole.
[0016] In some embodiments of the present application, the length direction of the sewage pipe is perpendicular to the bottom wall of the door body.
[0017] In the technical solution, impurities can be directly discharged from the sewage pipe under the action of gravity, avoiding excessive contact with the pipe wall of the sewage pipe, thereby preventing the impurities from being stuck in the sewage pipe.
[0018] In some embodiments of the present application, a plurality of the sewage pipes, the first sewage holes, and the second sewage holes are arranged at intervals along the length direction of the pulling space.
[0019] In the technical solution, sewage is discharged through multiple sewage pipes to improve the sewage discharge effect.
[0020] In some embodiments of the present application, the inner top wall of the box body is provided with a first connecting pipe connected to the first drain hole;
[0021] The inner bottom wall of the box body is provided with a second connecting pipe communicating with the second sewage discharge hole;
[0022] The two ends of the sewage pipe are used for sleeve-mounting the first connecting pipe and the second connecting pipe respectively.
[0023] In addition, the present application also provides a refrigerator, which includes:
[0024] A box body, one side of which is open;
[0025] A door body, the door body is arranged on a side of the box body having an opening, and the door body is used to open or close the opening of the box body;
[0026] The top of the door body is recessed toward the bottom of the door body to provide a pulling space;
[0027] a sewage discharge channel, wherein the sewage discharge channel connects the inner bottom wall of the pulling space with the bottom of the door body;
[0028] Impurities in the pulling space can be discharged through the drainage channel.
[0029] In the technical solution, when dust, dirt or condensation water falls into the pulling space, the solid debris can fall directly through the drainage channel; when cleaning the door body or there is condensation water, the liquid in the pulling space can be discharged through the drainage channel.
[0030] In some embodiments of the present application, the door body includes:
[0031] Surrounding, wherein two ends of the surrounding have openings communicating with each other;
[0032] A first end plate, the first end plate is arranged at one end of the enclosure; the pulling space is arranged at the first end plate;
[0033] A second end plate is disposed at an end of the enclosure away from the first end plate.
[0034] In some embodiments of the present application, the enclosure includes an outer shell and an inner panel, the outer shell includes a mounting section, a first connecting section and a second connecting section; the first connecting section and the second connecting section are respectively arranged at two ends of the mounting section, and the first connecting section and the second connecting section extend to one side of the inner panel, and the two ends of the inner panel are connected to the first connecting section and the second connecting section.
[0035] In some embodiments of the present application, a guide rail is provided on the side of the door body facing the box body, and the door body is slidably connected to the box body through the guide rail.
[0036] In some embodiments of the present application, the interior of the door body is filled with a foam layer.
[0037] In the technical solution, the thermal insulation effect of the door body is ensured by the foaming layer, thereby improving the thermal insulation effect of the refrigerator.
[0038] In some embodiments of the present application, the pulling space is located on a side of the door panel away from the box body; and a avoidance space communicating with the pulling space is provided on the side of the door panel away from the box body.
[0039] In the technical solution, it is convenient for the user to put his hand in through the avoidance space, so that it is convenient for the user to pull the door body through the pulling space.
[0040] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 is a schematic diagram of the overall structure of a refrigerator according to an embodiment of the present application;
[0042] Figure 2 is a schematic diagram of the overall structure of a door body according to an embodiment of the present application;
[0043] Figure 3 is a front view of a door body according to an embodiment of the present application;
[0044] Figure 4is a top view of a door body according to an embodiment of the present application;
[0045] Figure 5 is a cross-sectional view of a door body according to an embodiment of the present application;
[0046] Figure 6 is a cross-sectional view of a door body according to an embodiment of the present application;
[0047] Figure 7 is an exploded view of a door body according to an embodiment of the present application;
[0048] Figure 8 is a front view of a first end plate according to an embodiment of the present application;
[0049] Fig. 9 is a partial exploded view of a door body according to an embodiment of the present application;
[0050] Fig.10 is a partial exploded view of a door body according to an embodiment of the present application;
[0051] Fig.11 It is a schematic structural diagram of a door body according to an embodiment of the present application.
[0052] In the above figures: 100, box body; 200, door body; 201, pulling space; 300, first end plate; 400, second end plate; 500, surround; 501, outer shell; 502, inner plate; 600, first drain hole; 700, first connecting pipe; 800, second drain hole; 900, second connecting pipe; 110, drain pipe. DETAILED DESCRIPTION
[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "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 integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0055] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0056] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0057] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.
[0058] In the present application, the refrigerator includes a box body and a door body, and there is a storage space in the box body. The door body is used to open or close the storage space. The door body can be opened to store and retrieve items from the horizontal freezer. A refrigeration component is arranged inside the box body, and the refrigeration component includes an evaporator and a fan. A condenser and a compressor are also arranged on the box body. The compressor injects refrigerant into the condenser, and the condenser dissipates heat from the refrigerant and then flows into the evaporator. The evaporator evaporates the refrigerant and absorbs heat to reduce the temperature of the storage space to achieve cooling, and then flows back to the compressor to complete the next cycle.
[0059] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.
[0060] Please refer to all the drawings. In an illustrative embodiment of the refrigerator of the present invention, the refrigerator includes: a box body 100, a door body 200 and a sewage discharge channel, wherein one side of the box body 100 is opened.
[0061] The door body 200 is disposed on a side of the box body 100 where an opening is provided, and the door body 200 is used to open or close the opening of the box body 100 .
[0062] The top of the door body 200 is recessed toward the bottom of the door body 200 to form a pulling space 201 .
[0063] The drainage channel connects the inner bottom wall of the pulling space 201 with the bottom of the door body 200 , and impurities in the pulling space 201 can be discharged through the drainage channel.
[0064] Through the above scheme, when dust, dirt or condensation water falls into the pulling space 201, the solid debris can fall directly through the drainage channel; when cleaning the door body 200 or there is condensation water, the liquid in the pulling space 201 can be discharged through the drainage channel.
[0065] In some embodiments, the drainage channel directly penetrates the door body 200 structure, and the drainage channel is opened at the inner bottom wall of the pulling space 201 until it penetrates the door body 200 and is connected to the bottom of the door body 200 .
[0066] In some embodiments, the door body 200 is hollow, and the sewage discharge channel is arranged inside the door body 200 so that the pulling space 201 is connected with the bottom of the door body 200 .
[0067] In the present application, the pulling space 201 is used for the user to reach in and pull the door body 200 , so that the door body 200 opens or closes the opening of the box body 100 .
[0068] When condensed water from the box body 100 drips into the pulling space 201 , the condensed water is discharged through the drainage channel.
[0069] When there are impurities in the box body 100 that can pass through the sewage pipe 110, the impurities can also be discharged through the sewage channel.
[0070] When cleaning the pulling space 201 , water can be directly injected into the pulling space 201 , and the water flow cleans the pulling space 201 and turns it into sewage, which is then discharged through the sewage discharge channel.
[0071] Please refer to all the drawings. In addition, the present application also provides a refrigerator, which includes: a box body 100, a door body 200, a first sewage hole 600, a second sewage hole 800 and a sewage pipe 110; wherein one side of the box body 100 is open.
[0072] The door body 200 is disposed on a side of the box body 100 where an opening is provided, and the door body 200 is used to open or close the opening of the box body 100 .
[0073] The interior of the door body 200 is hollow.
[0074] The top of the door body 200 is recessed toward the bottom of the door body 200 to form a pulling space 201 .
[0075] The first drain hole 600 is opened on the inner bottom wall of the pulling space 201 .
[0076] The second drain hole 800 is opened at the bottom of the door body 200 .
[0077] The sewage pipe 110 is disposed inside the door body 200 .
[0078] One end of the sewage pipe 110 is connected to and communicates with the first sewage hole 600 , and the other end is connected to and communicates with the second sewage hole 800 .
[0079] The impurities in the pulling space 201 can be discharged through the first drain hole 600 , the drain pipe 110 and the second drain hole 800 .
[0080] Through the above scheme, when dust, dirt or condensation water falls into the pulling space 201, the solid debris can fall directly through the drain pipe 110; when cleaning the door body 200 or there is condensation water, the liquid in the pulling space 201 can be discharged through the first drain hole 600, the drain pipe 110 and the second drain hole 800.
[0081] In some embodiments, the length direction of the drain pipe 110 is perpendicular to the bottom wall of the door body 200. Impurities can be directly discharged from the drain pipe 110 under the action of gravity, avoiding excessive contact with the wall of the drain pipe 110, thereby preventing impurities from being stuck in the drain pipe 110.
[0082] In some embodiments, the length direction of the sewage pipe 110 is the same as the length direction of the tank 100 .
[0083] In some embodiments, the length direction of the sewage pipe 110 is vertically arranged.
[0084] In some embodiments, the cross-section of the sewage pipe 110 is circular.
[0085] In some embodiments, the cross-section of the sewage pipe 110 is oval.
[0086] In some embodiments, the cross-section of the sewage pipe 110 is rectangular.
[0087] In some embodiments, a foam layer is filled inside the door body 200. The foam layer ensures the thermal insulation effect of the door body 200 and improves the thermal insulation effect of the refrigerator.
[0088] In some embodiments, the foam layer wraps the outer peripheral wall of the sewage pipe 110 to prevent the foam layer from clogging the sewage pipe 110.
[0089] In some embodiments, the door body 200 includes a surround 500, a first end plate 300 and a second end plate 400, wherein both ends of the surround 500 have openings that are connected to each other. The first end plate 300 is disposed at one end of the surround 500, and the second end plate 400 is disposed at one end of the surround 500 away from the first end plate 300.
[0090] In some embodiments, the enclosure 500 is in the shape of a hollow rectangle to facilitate manufacturing.
[0091] In some embodiments, the first end plate 300 is disposed at an opening at the top end of the enclosure 500 , and the pulling space 201 is disposed at the first end plate 300 .
[0092] In some embodiments, the enclosure 500 includes an outer shell 501 and an inner panel 502 , and the outer shell 501 includes a mounting segment, a first connecting segment, and a second connecting segment.
[0093] The first connecting section and the second connecting section are respectively arranged at two ends of the installation section in the horizontal direction, and the first connecting section and the second connecting section extend toward one side of the inner plate 502, and two ends of the inner plate 502 are connected to the first connecting section and the second connecting section.
[0094] In some embodiments, the first connecting segment and the second connecting segment are both perpendicular to the mounting segment.
[0095] In some embodiments, the first connecting segment and the second connecting segment are parallel to each other.
[0096] In some embodiments, the first drain hole 600 penetrates the inner bottom wall of the pulling space 201 .
[0097] In some embodiments, the opening direction of the first drain hole 600 is perpendicular to the inner bottom wall of the pulling space 201 .
[0098] In some embodiments, the cross-sectional shape of the first drain hole 600 is the same as the cross-sectional shape of the drain pipe 110 , so as to facilitate impurities to enter the drain pipe 110 through the first drain hole 600 .
[0099] In some embodiments, the second drain hole 800 passes through the second end plate 400 .
[0100] In some embodiments, the opening direction of the second drain hole 800 is perpendicular to the second end plate 400 .
[0101] In some embodiments, the cross-sectional shape of the second drain hole 800 is the same as the cross-sectional shape of the drain pipe 110 , so as to facilitate impurities to pass through the drain pipe 110 and fall through the second drain hole 800 .
[0102] In some embodiments, the length direction of the pulling space 201 is arranged along the length direction of the first end plate 300, so as to increase the volume of the pulling space 201, increase the pulling range of the user, and facilitate the user to pull.
[0103] In some embodiments, a plurality of sewage pipes 110, first sewage holes 600, and second sewage holes 800 are disposed at intervals along the length direction of the pulling space 201. Sewage is discharged through a plurality of sewage pipes 110, thereby improving the sewage discharge effect.
[0104] In some embodiments, the inner top wall of the box body 100 is provided with a first connecting pipe 700 communicating with the first drain hole 600 , and the inner bottom wall of the box body 100 is provided with a second connecting pipe 900 communicating with the second drain hole 800 .
[0105] In some embodiments, the two ends of the sewage pipe 110 are respectively used to sleeve the first connecting pipe 700 and the second connecting pipe 900, so as to facilitate the arrangement and connection of the sewage pipe 110.
[0106] In some embodiments, two ends of the sewage pipe 110 are respectively used to be plugged into the first connecting pipe 700 and the second connecting pipe 900 .
[0107] In some embodiments, the first connecting pipe 700 is disposed on a side of the first end plate 300 facing the second end plate 400 , and the first connecting pipe 700 is communicated with the first drain hole 600 .
[0108] In some embodiments, the second connecting pipe 900 is disposed on a side of the second end plate 400 facing the first end plate 300 , and the second connecting pipe 900 is communicated with the second drain hole 800 .
[0109] In some embodiments, the door body 200 is hinged to the box body 100, and the box body 100 is opened or closed by flipping the door body 200.
[0110] In some embodiments, a guide rail is provided on one side of the door body 200 facing the box body 100 , and the door body 200 is slidably connected to the box body 100 via the guide rail.
[0111] In some embodiments, a support member is further provided inside the door body 200, and both ends of the support member are respectively connected to the first end plate 300 and the second end plate 400. A guide column is provided on the support member, and a guide hole is provided on the guide rail, and the guide hole is used for docking and positioning with the guide column.
[0112] In some embodiments, there are two guide rails, which are respectively arranged on one side of the inner plate 502 facing the cabinet. The two guide rails are arranged at intervals along the horizontal direction of the inner plate 502.
[0113] In some embodiments, the two rails are parallel to each other.
[0114] In some embodiments, a reinforcing rib is disposed on a side of the first end plate 300 facing the second end plate 400 , and the structural strength of the first end plate 300 is enhanced by the reinforcing rib.
[0115] In some embodiments, a reinforcing rib is disposed on a side of the second end plate 400 facing the first end plate 300 , and the structural strength of the second end plate 400 is enhanced by the reinforcing rib.
[0116] In some embodiments, the outer shell 501 and the inner plate 502 are connected by snap-fitting to facilitate installation.
[0117] In some embodiments, the first end plate 300 and the enclosure 500 are snap-fitted to facilitate installation.
[0118] In some embodiments, the second end plate 400 and the enclosure 500 are snap-fitted to facilitate installation.
[0119] In some embodiments, the pulling space 201 is located on the side of the door panel away from the box body 100, and a relief space connected to the pulling space 201 is provided on the side of the door panel away from the box body 100, so that the user can conveniently extend his hand through the relief space to pull the door body 200 through the pulling space 201.
[0120] In some embodiments, the pulling space 201 and the first end plate 300 are formed by stamping.
[0121] In some embodiments, the pulling space 201 and the first end plate 300 are formed by injection molding.
[0122] In some embodiments, a foam layer is also provided inside the box body 100 , and the foam layer is used for heat insulation to improve the heat preservation effect inside the box body 100 .
[0123] In some embodiments, the refrigerator has a freezer space inside.
[0124] In some embodiments, the door 200 is used to open or close the freezing space.
[0125] In some embodiments, the refrigerator has a refrigeration space inside.
[0126] In some embodiments, the door 200 is used to open or close the refrigerated space.
[0127] In some embodiments, a door panel is further provided on the cabinet 100, and both the door panel and the door body 200 are used to close the opening of the refrigerator.
[0128] In some embodiments, the refrigerator is a vertical refrigerator, and the opening of the box body 100 is opened on a vertical side wall of the box body 100 .
[0129] In the present application, the pulling space 201 is used for the user to reach in and pull the door body 200 , so that the door body 200 opens or closes the opening of the box body 100 .
[0130] When condensed water from the box body 100 drips into the pulling space 201 , the condensed water is discharged through the first drain hole 600 , the drain pipe 110 , and the second drain hole 800 in sequence.
[0131] When there are impurities in the box body 100 that can pass through the drain pipe 110, the impurities can also be discharged through the first drain hole 600, the drain pipe 110 and the second drain hole 800 in sequence.
[0132] When cleaning the pulling space 201 , water can be directly injected into the pulling space 201 . The water flow cleans the pulling space 201 and turns it into sewage, which is then discharged through the first sewage discharge hole 600 , the sewage discharge pipe 110 and the second sewage discharge hole 800 in sequence.
[0133] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A refrigerator, characterized in that: It includes: A box body, one side of which is open; A door body, which is arranged on a side of the box body with an opening, and is used to open or close the opening of the box body; the interior of the door body is hollow; The top of the door body is recessed toward the bottom of the door body to provide a pulling space; A first drain hole, wherein the first drain hole is provided on the inner bottom wall of the pulling space; A second drain hole, the second drain hole is opened at the bottom of the door body; A sewage pipe, the sewage pipe is arranged inside the door body; One end of the sewage pipe is connected to and communicated with the first sewage hole, and the other end is connected to and communicated with the second sewage hole; The impurities in the pulling space can be discharged through the first drain hole, the drain pipe and the second drain hole.
2. The refrigerator according to claim 1, characterized in that: The length direction of the sewage pipe is perpendicular to the bottom wall of the door body.
3. The refrigerator according to claim 1, characterized in that: The sewage pipe, the first sewage hole and the second sewage hole are arranged in plurality at intervals along the length direction of the pulling space.
4. The refrigerator according to claim 1, characterized in that: The inner top wall of the box body is provided with a first connecting pipe communicating with the first drain hole; The inner bottom wall of the box body is provided with a second connecting pipe communicating with the second sewage discharge hole; The two ends of the sewage pipe are used for sleeve-mounting the first connecting pipe and the second connecting pipe respectively.
5. A refrigerator, characterized in that: It includes: A box body, one side of which is open; A door body, the door body is arranged on a side of the box body having an opening, and the door body is used to open or close the opening of the box body; The top of the door body is recessed toward the bottom of the door body to provide a pulling space; a sewage discharge channel, wherein the sewage discharge channel connects the inner bottom wall of the pulling space with the bottom of the door body; Impurities in the pulling space can be discharged through the drainage channel.
6. The refrigerator according to claim 1 or 5, characterized in that: The door body comprises: Surrounding, wherein two ends of the surrounding have openings communicating with each other; A first end plate, the first end plate is arranged at one end of the enclosure; the pulling space is arranged at the first end plate; A second end plate is disposed at an end of the enclosure away from the first end plate.
7. The refrigerator according to claim 6, characterized in that: The enclosure includes an outer shell and an inner plate, the outer shell includes a mounting section, a first connecting section and a second connecting section; the first connecting section and the second connecting section are respectively arranged at two ends of the mounting section, and the first connecting section and the second connecting section extend to one side of the inner plate, and the two ends of the inner plate are connected to the first connecting section and the second connecting section.
8. The refrigerator according to claim 7, characterized in that: A guide rail is arranged on one side of the door body facing the box body, and the door body is slidably connected to the box body through the guide rail.
9. The refrigerator according to claim 1 or 5, characterized in that: The interior of the door body is filled with a foaming layer.
10. The refrigerator according to claim 1 or 5, characterized in that: The pulling space is located at a side of the door body away from the box body; and a avoidance space communicating with the pulling space is provided at a side of the door body away from the box body.