Guide rail of drawer cabinet and drawer cabinet

Abstract

The utility model relates to the technical field of household articles, and discloses a guide rail of a drawer cabinet and the drawer cabinet, the guide rail comprises a first side plate and a second side plate, the first side plate and the second side plate respectively extend along a first direction, and at least one of the first side plate and the second side plate is provided with a matching part, so that the guide rail is connected with a stand column through the matching part. According to the technical scheme, at least one of the two side plates is provided with the matching part, the guide rail and the stand column are connected through the matching part, and installation of the guide rail and the stand column is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a guide rail of a drawer cabinet and the drawer cabinet. BACKGROUND

[0002] In the related art, the drawer cabinet is installed by using an assembled shelf, and the guide rail of the drawer cabinet is installed on the column of the drawer cabinet, thereby completing the installation.

[0003] However, this method causes inconvenience in installing the assembled shelf. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a guide rail of a drawer cabinet and the drawer cabinet, which improves the convenience of installing the assembled shelf.

[0005] In a first aspect, the present application provides a guide rail of a drawer cabinet, which comprises:

[0006] a first side plate and a second side plate extending along a first direction, respectively;

[0007] wherein a cooperation part is arranged on at least one of the first side plate and the second side plate, so that the guide rail is connected with the column through the cooperation part.

[0008] Optionally, the first side plate is provided with a first cooperation part; and

[0009] the second side plate is provided with a second cooperation part;

[0010] wherein the first cooperation part and the second cooperation part are distributed on two sides of the first direction.

[0011] Optionally, the first cooperation part and the second cooperation part are symmetrically arranged about a first plane.

[0012] Optionally, the first side plate and the second side plate are arranged at the same angle with the first plane, respectively.

[0013] Optionally, the first side plate and the second side plate are arranged perpendicularly, so that the angle between the first side plate and the first plane and the angle between the second side plate and the first plane are both 45°.

[0014] Optionally, the first side plate and the second side plate are symmetrically arranged about a first plane.

[0015] Optionally, the first cooperation part protrudes from the first side plate along a direction perpendicular to the first direction; and / or the second cooperation part protrudes from the second side plate along a direction perpendicular to the first direction.

[0016] wherein the first cooperation part and / or the second cooperation part has a connection space with the corresponding side plate, which can allow the third cooperation part of the column to pass through.

[0017] Optionally, the guide rail further comprises:

[0018] a protrusion protruding from the first side plate and / or the second side plate in a direction perpendicular to the first direction.

[0019] Optionally, the guide rail further comprises:

[0020] a first blocking portion arranged at an end of the first side plate; and

[0021] a second blocking portion arranged at the same end of the second side plate as the first blocking portion;

[0022] wherein the first blocking portion and the second blocking portion are symmetrically arranged about the first plane.

[0023] According to a second aspect of the present application, there is provided a drawer cabinet comprising a guide rail as described above, the drawer cabinet further comprising:

[0024] a column provided with a third cooperating portion capable of being combined with the cooperating portion;

[0025] the column further having a mounting space and an opening that opens the mounting space;

[0026] wherein at least part of the third cooperating portion is located within the opening;

[0027] the opening comprises:

[0028] a first wall surface defining at least part of the opening;

[0029] wherein, along a projection plane parallel to the first direction, a projection of the third cooperating portion on the projection plane is located within a projection contour of the first wall surface on the projection plane.

[0030] Optionally, the opening further comprises a second wall surface defining part of the opening;

[0031] wherein, along a projection plane parallel to the first direction, a projection contour of the first wall surface on the projection plane is located within a projection contour of the second wall surface on the projection plane.

[0032] Optionally, the opening further comprises a third wall surface defining part of the opening;

[0033] wherein the first wall surface, the third wall surface, and the second wall surface are continuously arranged to form the opening.

[0034] Advantages:

[0035] The drawer cabinet guide rail provided by the application comprises a first side plate and a second side plate, which respectively extend along a first direction, and a cooperation part is arranged on at least one of the first side plate and the second side plate, so that the guide rail is connected with a stand column through the cooperation part. Through the above technical scheme, the cooperation part is arranged on at least one of the two side plates, and the guide rail is connected with the stand column through the cooperation part, so that the installation of the guide rail and the stand column is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0036] The technical scheme and other beneficial effects of the application will be apparent through the following detailed description of the specific embodiments of the application in combination with the drawings.

[0037] Figure 1 is a schematic diagram of the overall structure of the guide rail provided by the embodiment of the application;

[0038] Figure 2 is another angle schematic diagram of the overall structure of the guide rail provided by the embodiment of the application;

[0039] Figure 3 is Figure 2 schematic diagram of the cross-sectional structure along C-C in

[0040] Figure 4 is Figure 3 schematic diagram of the enlarged structure of the structure at D in

[0041] Figure 5 is a schematic diagram of the exploded structure of the guide rail provided by the embodiment of the application;

[0042] Figure 6 is a schematic diagram of the structure of the stand column provided by the embodiment of the application;

[0043] Figure 7 is Figure 6 enlarged schematic diagram of B in

[0044] Figure 8 is a schematic diagram of the structure of the guide rail provided by the embodiment of the application;

[0045] Figure 9 is another angle schematic diagram of the structure of the guide rail provided by the embodiment of the application;

[0046] Figure 10 is Figure 9 enlarged schematic diagram of A in

[0047] Figure 11 is another schematic diagram of the structure of the opening on the stand column provided by the embodiment of the application;

[0048] Figure 12 is a schematic diagram of the protrusion and the cooperation part of another structure arranged on the guide rail provided by the embodiment of the application;

[0049] Figure 13 is Figure 12 another angle view of the structure;

[0050] Figure 14 is Figure 12 still another angle view of the structure;

[0051] Figure 15 is a structural view of another third matching part provided on a stand column according to an embodiment of the present application;

[0052] Figure 16 is an enlarged structural view of F in Figure 15

[0053] Figure 17 is a dimensional view of still another third matching part provided on a guide rail according to an embodiment of the present application;

[0054] Figure 18 is an enlarged structural view of G in Figure 17

[0055] BRIEF DESCRIPTION OF DRAWINGS

[0056] 10, frame;

[0057] 100, guide rail; 110, first side plate; 111, first matching part;

[0058] 120, second side plate; 121, second matching part;

[0059] a, first plane;

[0060] 130, protrusion; 131, guide surface;

[0061] 140, first blocking part; 150, second blocking part;

[0062] 160, connecting arm; 160a, connecting space;

[0063] 200, stand column; 210, third matching part;

[0064] 200a, mounting space;

[0065] 200b, opening;

[0066] 200b1, first wall surface; 200b2, second wall surface; 200b3, third wall surface. DETAILED DESCRIPTION

[0067] ​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0068] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features with "first", "second" can explicitly or implicitly include one or more of the features, and in the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise explicitly and specifically limited.

[0069] With reference to Figure 1 For the convenience of introduction, the up, down, left, right, front and back directions are used in the corresponding drawings to facilitate the introduction of the relative positional relationship between the parts in the present application, which should not be understood as the limitation of the absolute position.

[0070] And in the present application, the first direction corresponds to the left-right direction, here the first direction indicates the left-right direction only for the convenience of introducing the specific embodiments of the present application, and the first direction does not exist the absolute corresponding relationship with the left-right direction, the second direction corresponds to the front-back direction, here the second direction indicates the front-back direction only for the convenience of introducing the specific embodiments of the present application, and the second direction does not exist the absolute corresponding relationship with the front-back direction.

[0071] The first direction of the present application is also only for expressing the relative positional relationship, which only indicates the approximate direction, not the absolute geometric relationship.

[0072] In the first aspect, with reference to Figures 1 to 11 The present application provides a guide rail 100 of a drawer cabinet, the guide rail 100 comprising: a first side plate 110 and a second side plate 120.

[0073] The first side plate 110 and the second side plate 120 each extend along the first direction.

[0074] Among them, the cooperation part is arranged on at least one of the first side plate 110 and the second side plate 120, so that the guide rail 100 is connected with the stand column 200 through the cooperation part.

[0075] Through the above technical solution, the cooperation part is arranged on at least one of the two side plates, and the guide rail 100 is connected with the stand column 200 through the cooperation part, so as to facilitate the installation of the guide rail 100 and the stand column 200.

[0076] In the present application, the fitting portions can be arranged only on the first side plate 110, only on the second side plate 120, or on both the first side plate 110 and the second side plate 120.

[0077] The fitting portions on the first side plate 110 and the fitting portions on the second side plate 120 can be arranged identically or differently.

[0078] The fitting portions on the first side plate 110 and the second side plate 120 can be arranged as one, two, or three or more, and the specific number is arranged according to actual use, which is not limited herein.

[0079] In some embodiments, referring to Figure 4 , the first side plate 110 is provided with a first fitting portion 111, and the second side plate 120 is provided with a second fitting portion 121.

[0080] The first fitting portion 111 and the second fitting portion 121 are distributed on both sides of the first direction.

[0081] By arranging the first fitting portion 111 and the second fitting portion 121 on the first side plate 110 and the second side plate 120 respectively, and distributing the first fitting portion 111 and the second fitting portion 121 on both sides of the first direction, the first side plate 110 or the second side plate 120 can be connected with the column 200, which is convenient for users to install.

[0082] At the same time, since the first fitting portion 111 and the second fitting portion 121 are arranged on the first side plate 110 and the second side plate 120 respectively, the first side plate 110 and the second side plate 120 can be connected with the column 200, so that the user does not need to specially distinguish the installation direction of the guide rail 100 and the column 200 during installation, which is convenient for user operation.

[0083] In some embodiments, referring to Figure 10 , the first fitting portion 111 and the second fitting portion 121 are symmetrically arranged about the first plane a.

[0084] By symmetrically arranging the first fitting portion 111 and the second fitting portion 121 about the first plane a, it is convenient for the forming of the guide rail 100, and the symmetrically arranged first fitting portion 111 and the second fitting portion 121 can be combined to the same position of the same column 200, thereby simplifying the structure of the column 200.

[0085] It should be noted that in the case of symmetrically arranging the first fitting portion 111 and the second fitting portion 121 about the first plane a, the fitting portions on the first side plate 110 and the second side plate 120 are arranged completely identically.

[0086] Referring to Figure 10The first fitting part 111 and the second fitting part 121 each have a connecting arm 160.

[0087] The connecting arm 160 protrudes from the corresponding side plate in a direction perpendicular to the first direction, and the connecting arm 160 and the corresponding position of the column 200 form a connection, which will be described in detail below.

[0088] In some other embodiments, the first fitting part 111 and the second fitting part 121 can also be centrally symmetric.

[0089] With reference to Figure 10 The arm body of the connecting arm 160 is linearly connected with the side plate.

[0090] With reference to Figure 14 The arm body of the connecting arm 160 can also be arc-shaped and connected with the side plate.

[0091] In some embodiments, the first side plate 110 and the second side plate 120 are respectively arranged at the same angle with the first plane a.

[0092] By arranging the first side plate 110 and the second side plate 120 at the same angle with the first plane a, the overall structure of the guide rail 100 can be designed more reasonably, which is convenient for molding and can make the drawer cabinet more stable after the guide rail 100 and the column 200 form the frame 10.

[0093] For example, the first side plate 110 and the second side plate 120 can be respectively arranged at an angle of 45° with the first plane a, and of course, it can also be 30°.

[0094] In some embodiments, the first side plate 110 and the second side plate 120 are arranged perpendicularly to make the first side plate 110 and the second side plate 120 respectively at an angle of 45° with the first plane a.

[0095] In some embodiments, the first side plate 110 and the second side plate 120 are symmetrically arranged about the first plane a.

[0096] By arranging the first plane a symmetrically about the first plane a, the overall structure of the guide rail 100 is symmetrically arranged about the first plane a, which further improves the convenience of user installation.

[0097] In some embodiments, the first fitting part 111 protrudes from the first side plate 110 in a direction perpendicular to the first direction, and the first fitting part 111 and the first side plate 110 have a connecting space 160a capable of allowing the third fitting part 210 of the column 200 to pass through. The third fitting part 210 is inserted into the connecting space 160a of the first fitting part 111, thereby achieving the connection between the first fitting part 111 and the third fitting part 210, and further achieving the connection between the column 200 and the first side plate 110 of the guide rail 100. In some embodiments, the second fitting part 121 protrudes from the second side plate 120 in a direction perpendicular to the first direction, and the second fitting part 121 and the second side plate 120 have a connecting space 160a capable of allowing the third fitting part 210 of the column 200 to pass through. The third fitting part 210 is inserted into the connecting space 160a of the second fitting part 121, thereby achieving the connection between the second fitting part 121 and the third fitting part 210, and further achieving the connection between the column 200 and the second side plate 120 of the guide rail 100.

[0098] It should be noted that the column 200 is connected with the first side plate 110 or the second side plate 120, and the column 200 is not simultaneously connected with the first side plate 110 and the second side plate 120.

[0099] In some embodiments, the guide rail 100 further comprises a protrusion 130.

[0100] The protrusion 130 protrudes from the first side plate 110 in a direction perpendicular to the first direction.

[0101] By providing the protrusion 130 on the first side plate 110, the protrusion 130 protrudes from the first side plate 110 in a direction perpendicular to the first direction, which can limit the upward displacement of the first side plate 110, and further improve the connection stability between the guide rail 100 and the column 200.

[0102] In some embodiments, the protrusion 130 protrudes from the second side plate 120 in a direction perpendicular to the first direction.

[0103] By providing the protrusion 130 on the second side plate 120, the protrusion 130 protrudes from the second side plate 120 in a direction perpendicular to the first direction, which can limit the upward displacement of the second side plate 120, and further improve the connection stability between the guide rail 100 and the column 200.

[0104] Exemplarily, the protrusions on the first side plate 110 and the second side plate 120 are all arranged identically.

[0105] The cross section of the protrusion 130 can be circular or semicircular. When an upward force is applied to the first side plate 110, the protrusion 130 is blocked by the column 200, thereby limiting the upward displacement of the second side plate 120, and avoiding the disengagement of the guide rail 100 from the column 200 when the guide rail 100 is accidentally bumped.

[0106] Reference Figures 12 to 14 The cross section of the protrusion 130 can also be V-shaped. Figure 13 The protrusion 130 in the figure has an arc-shaped guide surface 131, which can guide the guide rail 100 when the guide rail 100 is inserted into the column.

[0107] Figure 14 The protrusion of the figure 10 is different from that of the figure 20 in that Figure 10 The protrusion of the figure 10 is different from that of the figure 20 in that Figure 14 The protrusion of the figure 10 is different from that of the figure 20 in that

[0108] The position of the protrusion on each side plate can be set at a position away from the intersection of the two side plates, for example, at the edge of the plate.

[0109] The description of the protrusion 130 being blocked by the column 200 is described below.

[0110] In some embodiments, the guide rail 100 further comprises a first blocking portion 140 and a second blocking portion 150.

[0111] The first blocking portion 140 is arranged at the end of the first side plate 110, and the second blocking portion 150 is arranged at the same end of the second side plate 120 as the first blocking portion 140.

[0112] The first blocking portion 140 and the second blocking portion 150 are symmetrically arranged about the first plane a.

[0113] By arranging two blocking portions, the blocking portions can block the drawer after the guide rail 100 and the column 200 are assembled to form the frame 10 for placing the drawer, thereby avoiding the situation that the drawer is disengaged from the guide rail 100 due to transitional displacement along the guide rail 100.

[0114] Reference Figure 10 The cross section of the blocking portion is triangular, and more preferably, the cross section of the blocking portion is a right-angled triangle, and two right-angled triangles are arranged together to form a square.

[0115] According to a second aspect of the present application, a drawer cabinet is provided, referring to Figures 1 to 11 The drawer cabinet comprises the guide rail 100 as above, and further comprises a column 200.

[0116] The column 200 includes a column body provided with a third fitting part 210 capable of being combined with the fitting part, that is, the column body is provided with the third fitting part 210 capable of being combined with the first fitting part 111 or the second fitting part 121.

[0117] The connection of the third fitting part 210 with the first fitting part 111 or the second fitting part 121 realizes the connection between the column 200 and the guide rail 100.

[0118] With reference to Figure 4 , the column body of the column 200 further has a mounting space 200a and an opening 200b opening the mounting space 200a, at least part of the third fitting part 210 is located in the opening 200b, and then the third fitting part 210 is inserted into the connecting space 160a between the connecting arm 160 and the side plate, and the whole of the connecting part is located in the mounting space 200a of the column 200, so as to reduce the space occupied by the whole after the connection of the column 200 and the guide rail 100.

[0119] With reference to Figure 4 , the whole of the third fitting part 210 is located in the opening 200b.

[0120] The opening 200b includes a first wall surface 200b1, which defines at least part of the opening 200b.

[0121] The part of the opening 200b defined by the first wall surface 200b1 is defined as a first part.

[0122] Among them, along the projection plane parallel to the first direction, the projection of the third fitting part 210 on the projection plane is located in the projection of the first wall surface 200b1 on the projection plane.

[0123] By locating the projection of the third fitting part 210 on the projection plane in the projection of the first wall surface 200b1 on the projection plane, it is ensured that the whole of the third fitting part 210 is located in the opening 200b.

[0124] With reference to Figure 15 and Figure 16 , the dimension of the third fitting part 210 on the column body of the column 200 in the left-right direction is defined as L1, and the dimension in the up-down direction is defined as L2.

[0125] With reference to Figure 17 and Figure 18 , the dimension of the third fitting part 210 on the column body of the column 200 in the left-right direction is defined as L3, and the dimension in the up-down direction is defined as L4.

[0126] Then L1 can be less than L3, and L2 can be greater than L4.

[0127] At the same time, with reference to Figure 16In some embodiments, the third matching part 210 gradually increases in size along the left-right direction from top to bottom, facilitating the guiding of the guide rail 100 and the insertion with the guide rail 100.

[0128] In some embodiments, the opening 200b further comprises a second wall surface 200b2 defining part of the opening 200b;

[0129] In some embodiments, the first wall surface 200b1 is located within the projection profile of the second wall surface 200b2 on the projection plane parallel to the first direction.

[0130] In some embodiments, with reference to Figure 7 , the opening 200b further comprises a third wall surface 200b3 defining part of the opening 200b.

[0131] In some embodiments, the first wall surface 200b1, the third wall surface 200b3, and the second wall surface 200b2 are continuously arranged to form the opening 200b.

[0132] The third wall surface 200b3 is located between the first wall surface 200b1 and the second wall surface 200b2, and the third wall surface 200b3 can be arranged in a circular arc shape,

[0133] In some other embodiments, with reference to Figure 11 In some other embodiments, the first wall surface 200b1 and the second wall surface 200b2 can be continuously arranged, and the third wall surface 200b3 is not arranged in this embodiment.

[0134] Regarding the protrusion of the connecting arm 160 from the corresponding side plate in a direction perpendicular to the first direction, and the connection between the connecting arm 160 and the corresponding position of the column 200, this is described herein.

[0135] In some embodiments, with reference to Figure 4 In some embodiments, the connecting arm 160 has a connecting wall surface that is in contact with the first wall surface 200b1 after the second matching part 121 passes through the connecting space 160a.

[0136] By contacting the connecting wall surface with the first wall surface 200b1, the matching parts on the first side plate 110 and the second side plate 120 are more stable in connection with the third matching part 210 on the column 200, that is, the connecting arm 160 is connected with the first wall surface 200b1 of the opening 200b of the column 200.

[0137] Regarding the blocking of the protrusion 130 by the column 200, this is described herein.

[0138] In some embodiments, the protrusion 130 is blocked by the third wall surface 200b3 of the opening 200b of the column 200, limiting the upward displacement of the guide rail 100.

[0139] In some embodiments, with reference toFigure 4 An opening 200b is arranged on each of the two opposite column surfaces of the column.

[0140] An opening 200b is arranged on each of the two opposite column surfaces of the column, and a third matching part 210 is arranged at each opening 200b, which can match the matching parts of the two side plates of the guide rail 100 to realize the connection of the column 200 and the guide rail 100, without distinguishing the installation direction, and facilitating the installation of the guide rail 100 and the column 200.

[0141] The guide rail 100 and the column 200 are installed to form a frame 10, and the drawer is placed in the frame 10 to form a drawer cabinet.

[0142] Reference Figure 11 When the first wall surface 200b1 and the second wall surface 200b2 are continuously arranged, part of the second wall surface 200b2 is arranged obliquely relative to the first wall surface 200b1.

[0143] When the third wall surface 200b3 is arranged between the first wall surface 200b1 and the second wall surface 200b2, part of the second wall surface 200b2 is arranged perpendicularly relative to the first wall surface 200b1.

[0144] The guide rail 100 and the column 200 of the present application are connected by inserting the matching part of one of the two side plates of the guide rail 100 into the third matching part 210 on the column 200, and installing the guide rail 100 onto the column 200 from top to bottom, realizing the installation effect of the guide rail 100 and the column 200, and the protrusion 130 and the matching part on the guide rail 100 are both located in the installation space 200a.

[0145] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0146] The guide rail provided by the embodiments of the present application is described in detail above, and the principle and implementation manner of the present application are described by applying specific examples; the above description of the embodiments is only used to help understand the technical solutions and core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A guide rail of a drawer cabinet, characterized in that, the guide rail comprises: a first side plate and a second side plate extending along a first direction respectively; wherein a fitting portion is provided on at least one of the first side plate and the second side plate, so that the guide rail is connected with a stand column through the fitting portion. 2.A guide rail according to claim 1, characterized in that, the first side plate is provided with a first fitting portion; and the second side plate is provided with a second fitting portion; wherein the first fitting portion and the second fitting portion are distributed on both sides of the first direction. 3.A guide rail according to claim 2, characterized in that, the first fitting portion and the second fitting portion are symmetrically arranged about a first plane. 4.A guide rail according to claim 3, characterized in that, the first side plate and the second side plate are respectively arranged at the same angle with the first plane.

5. The guide rail according to claim 4, characterized in that the first side plate and the second side plate are arranged perpendicularly, so that the angle between the first side plate and the second side plate and the first plane is 45°.

6. The guide rail according to claim 1, characterized in that the first side plate and the second side plate are symmetrically arranged about the first plane. 7.A guide rail according to any one of claims 2 to 4, characterized in that, the first fitting portion protrudes from the first side plate along a direction perpendicular to the first direction; and / or the second fitting portion protrudes from the second side plate along a direction perpendicular to the first direction; wherein the first fitting portion and / or the second fitting portion has a connecting space with the corresponding side plate, through which a third fitting portion of a stand column can pass.

8. The guide rail according to any one of claims 2 to 6, characterized in that the guide rail further comprises: a protrusion protruding from the first side plate and / or the second side plate along a direction perpendicular to the first direction. 9.A guide rail according to any one of claims 3 to 6, characterized in that, the guide rail further comprises: a first blocking portion arranged at an end of the first side plate; and a second blocking portion arranged at the same end of the second side plate as the first blocking portion; wherein the first blocking portion and the second blocking portion are symmetrically arranged about the first plane.

10. A drawer cabinet characterized in that the drawer cabinet comprises the guide rail according to any one of claims 1 to 9; the drawer cabinet further comprises: a stand column provided with a third fitting portion capable of being combined with the fitting portion; the stand column further has a mounting space and an opening that makes the mounting space open; wherein at least part of the third fitting portion is located in the opening; the opening comprises: a first wall surface defining at least part of the opening; wherein, along a projection plane parallel to the first direction, the projection of the third fitting portion on the projection plane is located within the projection contour of the first wall surface on the projection plane.

11. The cabinet according to claim 10, characterized in that the opening further comprises a second wall surface defining part of the opening; wherein, along a projection plane parallel to the first direction, the projection contour of the first wall surface on the projection plane is located within the projection contour of the second wall surface on the projection plane.

12. The cabinet according to claim 11, characterized in that the opening further comprises a third wall surface defining part of the opening; wherein the first wall surface, the third wall surface and the second wall surface are continuously arranged to form the opening.

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