A standardized distribution box

Abstract

The invention provides a standardized distribution box, which has a door at the opening of the box, and is provided with: a frame, which is arranged near the back plate, and the frame is connected to the box by riveting or screws; a control switch frame, whose two ends are respectively installed on the frame through mounting bracket assemblies, and the front and rear positions and left and right positions of the control switch are adjustable; two two-layer board mounting strips, which are symmetrically arranged on the left and right sides of the box opening, and the two-layer board mounting strips are connected to the side panels on the corresponding sides; two-layer boards, whose two ends are installed on the two-layer board mounting strips, and the two-layer boards and the control switch frame are arranged correspondingly. In the distribution box created by the invention, the control switch frame is installed on the frame, and its position can be adjusted left, right, up, and down. Therefore, during assembly, it can be adjusted and installed according to the customer's electrical component installation requirements, and standardized production is achieved, which guarantees the unique needs of customers.

Description

Technical Field

[0001] The invention belongs to the field of distribution box production, and in particular relates to a standardized distribution box. Background Art

[0002] In order to meet the power distribution needs of electrical components in today's life, the design and function of the distribution box have been greatly improved. The existing distribution box design is generally based on customer requirements, and then the design unit designs it individually according to customer requirements before putting it into production. Therefore, this production method is non-standardized and cannot be mass-produced. There are problems such as low design and production efficiency and high production costs. At the same time, the existing distribution boxes generally have low strength problems. How to standardize the distribution boxes while ensuring the installation strength of the distribution boxes has become a research and development theme in the industry. Summary of the invention

[0003] In view of this, the invention aims to propose a standardized distribution box to achieve standardized production under the premise of meeting the strength of the distribution box.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A standardized distribution box comprises a box body with an opening at the front end, the box body comprises a back plate, a top plate riveted or screwed to the top of the back plate, a bottom plate riveted or screwed to the bottom end, and a side plate riveted or screwed to the left and right ends, respectively. A lintel is provided at the top of the box body, and the lintel, top plate and side plate are riveted or screwed to each other through an angle connection structure. A door is provided at the opening of the box body, and the box body is provided with:

[0006] A frame, which is disposed adjacent to the back plate and connected to the box body by riveting or screwing;

[0007] The control switch frame has two ends mounted on the frame through mounting bracket assemblies, and the front and rear positions and left and right positions of the control switch are adjustable;

[0008] Two second-layer board installation strips are symmetrically arranged on the left and right sides of the box opening, and the second-layer board installation strips are connected to the side panels on the corresponding sides;

[0009] The two ends of the second-layer board are mounted on the second-layer board mounting strips, and the second-layer board and the control switch frame are arranged correspondingly.

[0010] Furthermore, the corner connection structure includes a flat plate, a vertical plate is vertically provided on the right end of the flat plate, and a connecting plate for fixing the door lintel and the top plate of the distribution box is vertically provided at the front and rear ends of the flat plate respectively. The vertical plate and the two connecting plates are located on the same side of the flat plate, the two connecting plates are opposite to each other, and the two connecting plates are respectively perpendicular to the vertical plate, and each connecting plate is provided with a mounting hole for connecting to the door lintel and the top plate. The flat plate is also vertically provided with a fixing plate for fixing to the side plate 1 of the distribution box, the fixing plate is arranged opposite to the vertical plate, and the fixing plate is located on the right side of the connecting plate, an installation gap is formed between the fixing plate and the right end surface of the connecting plate, the fixing plate is provided with a fixing hole, and the corner connection structure is connected to the side plate through the fixing hole.

[0011] Furthermore, the lintel includes a horizontally arranged strip upright plate, which has a first connecting portion vertically provided inwardly along the top long side, and the first connecting portion is riveted or screwed to a connecting plate of the corner connecting structure, and the strip upright plate has a second connecting portion vertically provided inwardly along the bottom long side, and a third connecting portion is vertically provided downwardly at the outermost edge of the second connecting portion, and a fourth connecting portion is vertically provided inwardly at the outermost edge of the third connecting portion, and the fourth connecting portion is riveted or screwed to another connecting plate of the corner connecting mechanism.

[0012] Further, the side plate is a square flat plate, the upper and lower ends of the side plate are respectively bent with a first bending portion, the inner end of the side plate is bent with a second bending portion, and the outer end of the side plate is bent with a fixing mechanism, and the fixing mechanism, the second bending portion and the two first bending portions are located on the same side of the square flat plate;

[0013] The outer ends of the two first bending portions and the fixing mechanism are arranged correspondingly;

[0014] The first bent portion at the upper end is connected to the top plate by rivets or screws, the first bent portion at the lower end is connected to the bottom plate by rivets or screws, the top of the fixing mechanism is connected to the fixing plate on the angle connection structure by screws, and the second bent portion is connected to the back plate by rivets or screws.

[0015] Furthermore, the fixing mechanism is a stepped structure, which includes a third bending portion, a fourth bending portion, a fifth bending portion and a sixth bending portion connected in sequence, wherein the third bending portion is vertical and vertically connected to the square plate, the fourth bending portion and the sixth bending portion are respectively arranged opposite to the plate, and the sixth bending portion and the corner connection structure are riveted or screwed.

[0016] Further, the two-layer board mounting strip comprises a mounting strip body, which is a plate bending structure, comprising a first folding portion, a second folding portion and a third folding portion connected in sequence, wherein the first folding portion and the third folding portion are located on both sides of the second folding portion, the angle between the first folding portion and the second folding portion is an obtuse angle, and the angle between the second folding portion and the third folding portion is an acute angle;

[0017] The first folded edge portion is provided with modular holes along the length direction for fixing the second layer of the board;

[0018] The third folded edge portion is mounted on the side plate on the corresponding side thereof by means of screws.

[0019] Further, the framework includes two upright posts and a plurality of cross beams;

[0020] The inner end of the column is evenly arranged with a plurality of first long holes for connecting with the crossbeam, the top and bottom of the outer end of the column are respectively provided with a connection hole for fixed connection with the distribution box, and a modular hole for connecting with the mounting bracket assembly is provided between the two connection holes to achieve the upper and lower position adjustment of the mounting bracket assembly 4, and the outer end edge of the column is vertically bent with a first flange;

[0021] The upper and lower parts of the crossbeam are respectively provided with modular holes for connecting with the mounting bracket assembly to achieve left and right position adjustment of the mounting bracket assembly, and the middle part is provided with a plurality of second long strip holes;

[0022] Several cross beams are distributed from top to bottom, and both ends of each cross beam are connected to the first long strip hole on the column (91) through screws.

[0023] Furthermore, a second flange is provided outwardly at the inner end of the column, and the second flange is provided on the same side as the first flange. The second flange is perpendicular to the first flange, and the distance between the second flange and the column is equal to the thickness of the beam. The beam is installed on the second flange, and the inner surface of the beam is in close contact with the outer surface of the second flange.

[0024] Further, the mounting bracket assembly includes a first bracket and a second bracket;

[0025] The first bracket includes a vertically arranged first flat plate portion and a control switch frame mounting portion, the control switch frame and the control switch mounting portion are screwed together, and the first flat plate portion is provided with a modulus hole in a direction vertical to the control switch mounting portion;

[0026] The second bracket includes a vertically arranged second flat plate portion and a frame connecting portion. The second flat plate portion is provided with a modular hole in a direction perpendicular to the frame connecting portion. The second flat plate portion and the first flat plate portion are connected by screws with facing modular holes, thereby realizing the front and rear position adjustment of the first bracket relative to the second bracket. The frame connecting portion is fixed to the frame by screws.

[0027] Compared with the prior art, the distribution box created by the present invention has the following advantages:

[0028] (1) The various components of the standardized distribution box created by the present invention are connected by riveting or screws, which solves the problem of deformation of common distribution boxes caused by welding stress concentration.

[0029] (2) The standardized distribution box created by the present invention has a control switch frame installed on the frame, and its position can be adjusted to the left, right, up and down. Therefore, during assembly, it can be adjusted and installed according to the customer's electrical component installation requirements, and standardized production is achieved, ensuring the unique needs of customers.

[0030] (3) The standardized distribution box created by the present invention has a top plate, a lintel and side plates connected by an angle connection structure, which changes the common welding connection design of the distribution box, ensures the connection strength of the top plate, side plates and lintel connection, and prevents deformation of the connection.

[0031] (4) The standardized distribution box created by the present invention has side panels, top panels, back panels, lintels, second-layer board mounting strips, frames, second-layer boards, second-layer board mounting strips and other components that adopt specific size structures and are assembled according to the specific size structures to meet standardization requirements and enable mass production. At the same time, during the assembly process, since the second-layer board mounting strips, frames, control switch racks and other components are respectively provided with modular holes for installation and adjustment, electrical components can be assembled and adjusted according to customer needs, thereby meeting customer needs and ensuring the personalized use requirements of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0033] Figure 1 It is the overall three-dimensional schematic diagram of the standardized distribution box;

[0034] Figure 2 It is a three-dimensional schematic diagram of the corner connection structure;

[0035] Figure 3 It is the connection relationship diagram of the top plate, lintel and corner connection structure;

[0036] Figure 4 It is the connection relationship diagram of the top plate, lintel, side plate and corner connection structure;

[0037] Figure 5 This is the main stereoscopic view of the lintel;

[0038] Figure 6 This is a three-dimensional picture of the door lintel when looking up;

[0039] Figure 7 It is a three-dimensional diagram of the side panel;

[0040] Figure 8 It is a schematic diagram of the fixing mechanism structure of the side panel;

[0041] Fig. 9It is a skeleton stereogram;

[0042] Fig.10 This is the connection diagram of the columns and beams of the skeleton;

[0043] Fig.11 A three-dimensional diagram of the mounting bracket assembly;

[0044] Fig.12 It is the connection diagram of the control switch rack, frame and mounting bracket assembly;

[0045] Fig.13 A three-dimensional diagram of the installation strips for the second floor board;

[0046] Fig.14 for Fig.13 A enlarged view of .

[0047] Description of reference numerals:

[0048] 1-side plate; 11-first bending portion;

[0049] 12-fixing mechanism; 121-third bending portion;

[0050] 122- fourth bending portion; 123- fifth bending portion;

[0051] 124-sixth bending portion; 13-second bending portion;

[0052] 2- back plate; 3- top plate;

[0053] 4-mounting bracket assembly; 41-first bracket;

[0054] 411-first flat plate portion; 412-control switch rack mounting portion;

[0055] 42-a second bracket; 421-a second flat plate portion;

[0056] 423-frame connection part; 5-corner connection structure;

[0057] 51- flat plate; 52- vertical plate;

[0058] 53-connecting plate; 531-mounting hole;

[0059] 54-fixing plate; 541-fixing hole;

[0060] 6-door lintel; 61-strip vertical board;

[0061] 62-first connecting portion; 63-second connecting portion;

[0062] 64-third connecting portion; 65-fourth connecting portion;

[0063] 7-second layer board; 8-second layer board mounting strip;

[0064] 81-first folding portion; 82-second folding portion;

[0065] 83-third folding edge portion; 9-frame;

[0066] 91-column; 911-first flange;

[0067] 912-second flange; 914-connecting hole;

[0068] 915-first long hole; 925-second long hole;

[0069] 9- crossbeam; 10- control switch rack;

[0070] 14-door; 15-bottom plate; DETAILED DESCRIPTION

[0071] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0072] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0073] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0074] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0075] like Figure 1-12 As shown, a standardized distribution box includes a box body with an opening at the front end, the box body includes a back plate 2, a top plate 3 riveted or screwed to the top of the back plate 2, a bottom plate 15 riveted or screwed to the bottom end, and a side plate 1 riveted or screwed to the left and right ends, respectively. A lintel 6 is provided at the top of the box body, and the lintel 6, the top plate 3 and the side plate 1 are riveted and connected through an angle connection structure 5. A door 14 is provided at the opening of the box body. The box body is provided with: a frame 9, a control switch frame 10, two second-layer plate mounting strips 8, and a second-layer plate 7. , wherein the frame 9 is arranged near the back plate 2, and the frame 9 is riveted or screwed to the box body; the control switch frame 10 is provided with a modular hole, and the two ends of the control switch frame 10 are respectively installed on the frame 9 through the mounting bracket assembly 4, and the front and rear positions and left and right positions of the control switch 10 are adjustable; two two-layer board mounting strips 8 are symmetrically arranged on the left and right sides of the box opening, and the two-layer board mounting strips 8 are connected to the side panels 1 on the corresponding sides; the two ends of the two-layer board 7 are installed on the two-layer board mounting strips 8, and the two-layer board 7 and the control switch frame 10 are correspondingly arranged.

[0076] like Figure 2-4 As shown, the corner connection structure 5 includes a flat plate 51, a vertical plate 52 is vertically provided at the right end of the flat plate 51, and a connecting plate 53 for fixing the door lintel and the top plate of the distribution box is vertically provided at the front and rear ends of the flat plate 51, respectively. The vertical plate 52 and the two connecting plates 53 are located on the same side of the flat plate 51, and the two connecting plates 53 are directly opposite to each other, and the two connecting plates 53 are respectively perpendicular to the vertical plate 52. Each connecting plate 53 is provided with a mounting hole 531 for connecting with the door lintel and the top plate. The flat plate 51 is also vertically provided with a fixing plate (54) for fixing with the side plate 1 of the distribution box. The fixing plate (54) is arranged directly opposite to the vertical plate (52), and the fixing plate 54 is located on the right side of the connecting plate 53. An installation gap is formed between the fixing plate 54 and the right end surface of the connecting plate 53. The fixing plate 54 is provided with a fixing hole 541, and the corner connection structure is connected to the side plate 1 through the fixing hole 541.

[0077] like Figure 5 , 6 As shown, the lintel 6 includes a horizontally arranged strip upright plate 61, and the strip upright plate 61 is vertically provided with a first connecting portion 62 along the top long side inward, and the first connecting portion 62 is riveted or screwed to a connecting plate 53 of the corner connecting structure 5, and the strip upright plate 61 is vertically provided with a second connecting portion 63 along the bottom long side inward, and the outermost edge of the second connecting portion 63 is vertically provided with a third connecting portion 64 downward, and the outermost edge of the third connecting portion 64 is vertically provided with a fourth connecting portion 65 inward, and the fourth connecting portion 65 is riveted or screwed to another connecting plate 53 of the corner connecting mechanism 5.

[0078] like Figure 7 , 8As shown, the side panel 1 is a square flat plate, and the upper and lower ends of the side panel 1 are respectively bent with a first bent portion 11, the inner end of the side panel 1 is bent with a second bent portion 13, and the outer end of the side panel 1 is bent with a fixing mechanism 12, and the fixing mechanism 12, the second bent portion 13 and the two first bent portions 11 are located on the same side of the square flat plate 1; the outer ends of the two first bent portions 11 are correspondingly arranged with the fixing mechanism; the first bent portion 11 at the upper end is riveted or screwed to the top plate 3, and the first bent portion 11 at the lower end is riveted or screwed to the bottom plate 15, and the top of the fixing mechanism 12 is connected The second bending portion 13 is connected to the back plate 2 by riveting or screwing through screws and the fixing plate 54 on the corner connection structure 5. In the present embodiment, the fixing mechanism 12 is a stepped structure, which includes a third bending portion 121, a fourth bending portion 122, a fifth bending portion 123 and a sixth bending portion 124 connected in sequence, wherein the third bending portion 121 is vertical and vertically connected to the square flat plate 1, the fourth bending portion 122 and the sixth bending portion 124 are respectively arranged opposite to the flat plate 1, and the sixth bending portion 14 is connected to the corner connection structure by riveting or screws.

[0079] like Fig.13 , 14 As shown, the two-layer board mounting strip 8 includes a mounting strip body, which is a plate bending structure, including a first folding portion 81, a second folding portion 82 and a third folding portion 83 connected in sequence, the first folding portion 81 and the third folding portion 83 are located on both sides of the second folding portion 82, the angle between the first folding portion 81 and the second folding portion 82 is an obtuse angle, and the angle between the second folding portion 82 and the third folding portion 83 is an acute angle; the first folding portion 81 is provided with a modular hole along the length direction for fixing the two-layer board 7; the third folding portion 83 is installed on the side panel 1 on its corresponding side by screws.

[0080] like Fig. 9 , 10As shown, the skeleton 9 includes two columns 91 and a plurality of beams 92; a plurality of first long holes 915 for connecting to the beams 92 are evenly arranged at the inner ends of the columns 91, and a connection hole 914 for fixed connection to the distribution box is respectively provided at the top and bottom of the outer ends of the columns 91, and a modular hole for connecting to the mounting bracket assembly 4 is provided between the two connection holes 914 to achieve the upper and lower position adjustment of the mounting bracket assembly 4, and the outer end edge of the column 91 is vertically bent with a first flange 911; the upper and lower parts of the beams 92 are respectively provided with modular holes for connecting to the mounting bracket assembly 4 to achieve the left and right position adjustment of the mounting bracket assembly 4 The position is adjusted, and a plurality of second long holes 925 are provided in the middle thereof; a plurality of cross beams 92 are distributed from top to bottom, and the two ends of each cross beam 92 are connected to the first long holes 915 on the column 91 by screws respectively; in this embodiment, in order to enhance the additional strength, a second flange 912 is provided outwardly at the inner end of the column 91, and the second flange 912 and the first flange 911 are provided on the same side, and the second flange 912 and the first flange 911 are perpendicular, and the distance between the second flange 912 and the column 91 is equal to the thickness of the cross beam 92, and the cross beam 92 is installed on the second flange 912, and the inner surface of the cross beam 9 is close to the outer surface of the second flange 912.

[0081] like Fig.11 , 12 As shown, the mounting bracket assembly 4 includes a first bracket 41 and a second bracket 42; the first bracket 41 includes a vertically arranged first flat plate portion 411 and a control switch frame mounting portion 412, the control switch frame 10 and the control switch mounting portion 412 are screwed, and the first flat plate portion 411 is provided with a modular hole in a direction vertical to the control switch mounting portion 412; the second bracket 42 includes a vertically arranged second flat plate portion 421 and a skeleton connecting portion 423, the second flat plate portion 421 is provided with a modular hole in a direction vertical to the skeleton connecting portion 423, the second flat plate portion 421 and the first flat plate portion 411 are screwed through the facing modular holes, thereby realizing the front and rear position adjustment of the first bracket 41 relative to the second bracket 42, and the skeleton connecting portion 423 is fixed to the skeleton 9 by screws.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A standardized distribution box, characterized in that: The box body comprises a box body with a front opening, the box body comprises a back plate (2), a top plate (3) riveted or screwed to the top of the back plate (2), a bottom plate (15) riveted or screwed to the bottom of the back plate (2), and a side plate (1) riveted or screwed to the left and right ends of the back plate (2). A door lintel (6) is provided at the top of the box body. The door lintel (6), the top plate (3) and the side plate (1) are riveted or screwed to each other via an angle connection structure (5). A door (14) is provided at the opening of the box body. The box body is provided with: A frame (9), the frame (9) is arranged adjacent to the back plate (2), and the frame (9) is riveted or screwed to the box body; A control switch frame (10), both ends of which are mounted on the frame (9) via mounting bracket assemblies (4), and the front-to-back position and the left-to-right position of the control switch frame (10) are adjustable; Two second-layer board installation strips (8) are symmetrically arranged on the left and right sides of the box opening, and the second-layer board installation strips (8) are connected to the side panels (1) on the corresponding sides; A second-layer board (7), both ends of which are mounted on a second-layer board mounting strip (8), and the second-layer board (7) and the control switch frame (10) are arranged correspondingly; The corner connection structure (5) comprises a flat plate (51), a vertical plate (52) is vertically arranged at the right end of the flat plate (51), and a connecting plate (53) for fixing the door lintel and the top plate of the distribution box is vertically arranged at the front and rear ends of the flat plate (51), respectively. The vertical plate (52) and the two connecting plates (53) are located on the same side of the flat plate (51), and the two connecting plates (53) are directly opposite to each other. The two connecting plates (53) are respectively perpendicular to the vertical plate (52), and each connecting plate (53) is provided with a connecting plate for fixing the door lintel and the top plate. and a mounting hole (531) connected to the top plate, the flat plate (51) is also vertically provided with a fixing plate (54) for fixing to the side plate (1) of the distribution box, the fixing plate (54) is arranged opposite to the vertical plate (52), and the fixing plate (54) is located on the right side of the connecting plate (53), and a mounting gap is formed between the fixing plate (54) and the right end surface of the connecting plate (53), the fixing plate (54) is provided with a fixing hole (541), and the corner connection structure is connected to the side plate (1) through the fixing hole (541); The mounting bracket assembly (4) comprises a first bracket (41) and a second bracket (42); The first bracket (41) comprises a first flat plate portion (411) and a control switch frame mounting portion (412) arranged vertically, the control switch frame (10) and the control switch mounting portion (412) are screw-connected, and the first flat plate portion (411) is provided with a modulus hole in a direction perpendicular to the control switch mounting portion (412); The second bracket (42) comprises a second flat plate portion (421) and a frame connecting portion (423) arranged vertically, the second flat plate portion (421) is provided with a modular hole in a direction perpendicular to the frame connecting portion (423), the second flat plate portion (421) and the first flat plate portion (411) are connected by screws with the modular holes facing each other, thereby realizing the front and rear position adjustment of the first bracket (41) relative to the second bracket (42), and the frame connecting portion (423) is fixed to the frame (9) by screws.

2. A standardized distribution box according to claim 1, characterized in that: The door lintel (6) comprises a horizontally arranged strip-shaped upright plate (61), wherein a first connecting portion (62) is vertically arranged inwardly along the top long side of the strip-shaped upright plate (61), and the first connecting portion (62) is connected to a connecting plate (53) of the corner connecting structure (5) by riveting or screwing, and a second connecting portion (63) is vertically arranged inwardly along the bottom long side of the strip-shaped upright plate (61), and a third connecting portion (64) is vertically arranged downwardly at the outermost edge of the second connecting portion (63), and a fourth connecting portion (65) is vertically arranged inwardly at the outermost edge of the third connecting portion (64), and the fourth connecting portion (65) is connected to another connecting plate (53) of the corner connecting structure (5) by riveting or screwing.

3. A standardized distribution box according to claim 1, characterized in that: The side plate (1) is a square flat plate, the upper and lower ends of the side plate (1) are respectively bent with a first bent portion (11), the inner end of the side plate (1) is bent with a second bent portion (13), and the outer end of the side plate (1) is bent with a fixing mechanism (12), and the fixing mechanism (12), the second bent portion (13) and the two first bent portions (11) are located on the same side of the side plate (1); The outer ends of the two first bent portions (11) and the fixing mechanism are arranged correspondingly; The first bent portion (11) at the upper end is connected to the top plate (3) by riveting or screwing, the first bent portion (11) at the lower end is connected to the bottom plate (15) by riveting or screwing, the top of the fixing mechanism (12) is connected to the fixing plate (54) on the corner connection structure (5) by screws, and the second bent portion (13) is connected to the back plate (2) by riveting or screwing.

4. A standardized distribution box according to claim 3, characterized in that: The fixing mechanism (12) is a stepped structure, comprising a third bending portion (121), a fourth bending portion (122), a fifth bending portion (123) and a sixth bending portion (124) connected in sequence, wherein the third bending portion (121) is vertical and vertically connected to the side plate (1), the fourth bending portion (122) and the sixth bending portion (124) are respectively arranged on the side plate (1), and the sixth bending portion (124) is connected to the corner connection structure by riveting or screwing.

5. A standardized distribution box according to claim 1, characterized in that: The two-layer board installation strip (8) comprises an installation strip body, which is a plate bending structure, comprising a first folding portion (81), a second folding portion (82) and a third folding portion (83) connected in sequence, wherein the first folding portion (81) and the third folding portion (83) are located on both sides of the second folding portion (82), the angle between the first folding portion (81) and the second folding portion (82) is an obtuse angle, and the angle between the second folding portion (82) and the third folding portion (83) is an acute angle; The first folded edge portion (81) is provided with modular holes along the length direction for fixing the second layer board (7); The third folded edge portion (83) is mounted on the side plate (1) on the corresponding side thereof by means of screws.

6. A standardized distribution box according to claim 1, characterized in that: The frame (9) comprises two upright posts (91) and a plurality of cross beams (92); The inner end of the column (91) is evenly arranged with a plurality of first long holes (915) for connecting with the crossbeam (92); the top and bottom of the outer end of the column (91) are respectively provided with a connection hole (914) for fixed connection with the distribution box; a modular hole for connecting with the mounting bracket assembly (4) is provided between the two connection holes (914) to achieve the vertical position adjustment of the mounting bracket assembly (4); the outer end edge of the column (91) is vertically bent with a first flange (911); The upper and lower parts of the crossbeam (92) are respectively provided with modular holes for connecting with the mounting bracket assembly (4) to achieve left and right position adjustment of the mounting bracket assembly (4), and the middle part thereof is provided with a plurality of second elongated holes (925); Several cross beams (92) are distributed from top to bottom, and two ends of each cross beam (92) are connected to the first long hole (915) on the column (91) through screws.

7. A standardized distribution box according to claim 6, characterized in that: A second flange (912) is provided outwardly at the inner end of the column (91), the second flange (912) and the first flange (911) are provided on the same side, the second flange (912) and the first flange (911) are perpendicular, and the distance between the second flange (912) and the column (91) is equal to the thickness of the crossbeam (92), the crossbeam (92) is installed on the second flange (912), and the inner surface of the crossbeam (92) is in close contact with the outer surface of the second flange (912).

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