Corner piece and keel mounting structure

Abstract

The application provides an angle piece and a keel mounting structure. The angle piece comprises a connecting part, a first angle part and a second angle part, one side of the connecting part is provided with a first connecting section and a second connecting section; the first angle part is connected with the first connecting section, and the second angle part is connected with the second connecting section; the first angle part comprises a first buckle and a second buckle, and the second angle part comprises a third buckle and a fourth buckle; the first buckle and the third buckle are oppositely arranged, and the second buckle and the fourth buckle are oppositely arranged. The application can improve the mounting efficiency of the keel.

Description

Technical Field

[0001] This application relates to the field of building decoration technology, and more specifically, to a corner fitting and keel installation structure. Background Technology

[0002] With the continuous improvement of living standards and construction technology, the green transformation of the building decoration industry is being promoted, and more and more interior decoration is using light steel keel partition walls. However, currently, multiple keels need to be connected by first drilling connection holes and then using screws through the connection holes to connect multiple keels, resulting in low installation efficiency.

[0003] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] One objective of this application is to provide a new technical solution for corner fittings and keel installation structures.

[0005] According to a first aspect of this application, a corner piece is provided, wherein the corner piece comprises:

[0006] The connecting part has a first connecting segment and a second connecting segment on one side;

[0007] A first corner portion and a second corner portion, wherein the first corner portion is connected to the first connecting segment and the second corner portion is connected to the second connecting segment; the first corner portion includes a first buckle and a second buckle, and the second corner portion includes a third buckle and a fourth buckle; the first buckle and the third buckle are arranged opposite to each other, and the second buckle and the fourth buckle are arranged opposite to each other.

[0008] Optionally, the first corner portion further includes a first connecting hole, and the second corner portion further includes a second connecting hole;

[0009] It also includes fasteners for passing through the first connecting hole and the second connecting hole to increase the distance between the first buckle and the third buckle, and between the second buckle and the fourth buckle, or to decrease the distance between the first buckle and the third buckle, and between the second buckle and the fourth buckle.

[0010] Optionally, both the first connecting segment and the second connecting segment are protrusions extending from one side of the connecting portion.

[0011] Optionally, the connecting portion is further provided with a protrusion on the side opposite to the first connecting segment and the second connecting segment, the protrusion being used to form the handle of the corner piece.

[0012] According to a second aspect of this application, a keel mounting structure is provided, comprising a first keel, a second keel, and a corner piece as described in any of the first aspects, wherein the first keel is connected to the second keel via the corner piece.

[0013] Optionally, both the first keel and the second keel are open keels with openings formed by a first side, a second side and a third side;

[0014] Alternatively, both the first and second keels are tubular keels with cavities formed by the fourth, fifth, sixth, and seventh sides.

[0015] Optionally, one end of the first side is connected to the second side via a first slot, and the other end of the first side is connected to the third side via a second slot.

[0016] The first slot engages with the first buckle, and the second slot engages with the third buckle; or, the first slot engages with the second buckle, and the second slot engages with the fourth buckle.

[0017] Optionally, the open keel further includes a first bending portion and a second bending portion, wherein the first bending portion is connected to the second side via a third slot, and the second bending portion is connected to the third side via a fourth slot.

[0018] Optionally, a first mounting hole is provided on the first side;

[0019] It also includes screws that can pass through the first mounting hole to connect the open keel to the wall.

[0020] Optionally, it may also include a third keel, which is connected to the first keel via the corner piece; and / or, the third keel is connected to the second keel via the corner piece.

[0021] The corner fitting in this application, by having the first and third clips positioned opposite each other, and the second and fourth clips positioned opposite each other, allows for the connection between multiple keels simply by having the clips engage with the keels, thus effectively improving the installation efficiency of the keels.

[0022] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments of this application with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0024] Figure 1 This is a schematic diagram of a corner piece without fasteners in one embodiment of this application.

[0025] Figure 2 yes Figure 1 The main view.

[0026] Figure 3 This is a side view of a corner piece in one embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the keel installation structure in one embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the structure of an open keel in one embodiment of this application.

[0029] Figure 6 This is an assembly diagram of an open keel in one embodiment of this application.

[0030] Figure 7 This is a schematic diagram of the structure of the tubular keel in one embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Corner fitting; 101. Connecting part; 1011. First connecting section; 1012. Second connecting section; 102. First corner; 1021. First buckle; 1022. Second buckle; 1023. First connecting hole; 103. Second corner; 1031. Third buckle; 1032. Fourth buckle; 1033. Second connecting hole; 104. Fastener; 105. Protrusion;

[0033] 2. First keel;

[0034] 3. Second keel;

[0035] 4. Third keel;

[0036] 5. Open keel; 501. First side; 5011. First mounting hole; 502. Second side; 503. Third side; 504. First slot; 505. Second slot; 506. First bend; 507. Second bend; 508. Third slot; 509. Fourth slot;

[0037] 6. Tubular keel; 601. Fourth side; 602. Fifth side; 603. Sixth side; 604. Seventh side; 605. Cavity;

[0038] 7. Screws. Detailed Implementation

[0039] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0040] The embodiments of this application will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] According to one embodiment of this application, a corner piece is provided, see [link to relevant documentation]. Figure 1The corner pieces include:

[0046] The connecting part 101 has a first connecting segment 1011 and a second connecting segment 1012 provided on one side;

[0047] A first corner portion 102 and a second corner portion 103 are connected. The first corner portion 102 is connected to the first connecting segment 1011, and the second corner portion 103 is connected to the second connecting segment 1012. The first corner portion 102 includes a first buckle 1021 and a second buckle 1022, and the second corner portion 103 includes a third buckle 1031 and a fourth buckle 1032. The first buckle 1021 and the third buckle 1031 are arranged opposite to each other, and the second buckle 1022 and the fourth buckle 1032 are arranged opposite to each other.

[0048] In the above embodiment, the connecting part 101 is the basic support structure of the corner piece 1, providing a platform for the installation and fixing of the first corner piece 102 and the second corner piece 103, so that the entire corner piece 1 has high stability and reliability during use.

[0049] The connecting portion 101 includes a first connecting segment 1011 and a second connecting segment 1012. Both the first connecting segment 1011 and the second connecting segment 1012 are located on one side of the connecting portion 101 to limit the dimensions between the first buckle 1021 and the third buckle 1031, and between the second buckle 1022 and the fourth buckle 1032. Simultaneously, the different dimensions of the first connecting segment 1011 and the second connecting segment 1012 on the connecting portion 101 allow the corner piece 1 to be formed into different specifications. Therefore, when the corner piece 1 is fitted with the keel, selecting a corner piece 1 that matches the keel further ensures the connection strength between the corner piece 1 and the keel, improving the connection effect between keels.

[0050] In the above embodiment, one end of the first connecting segment 1011 is further provided with a first corner portion 102, and one end of the second connecting segment 1012 is further provided with a second corner portion 103. The first corner portion 102 and the second corner portion 103 are the connecting structures of the corner piece 1, which are used to engage with the keel to realize the connection between the keels.

[0051] A receiving cavity for accommodating the keel is formed between the first corner portion 102 and the second corner portion 103, so that the corner piece 1 can be adapted to keels of different sizes. For example, when a groove that mates with the corner portion is provided on the keel, the receiving cavity between the first corner portion 102 and the second corner portion 103 can accommodate grooves of different depths, thereby effectively improving the applicability of the corner piece 1.

[0052] See Figure 1The first corner portion 102 includes a first buckle 1021 and a second buckle 1022, and the second corner portion 103 includes a third buckle 1031 and a fourth buckle 1032. The first buckle 1021 and the second buckle 1022 are opposite sides of the first corner portion 102, and the third buckle 1031 and the fourth buckle 1032 are opposite sides of the second corner portion 103. The first buckle 1021 and the third buckle 1031 are arranged opposite each other, and the second buckle 1022 and the fourth buckle 1032 are arranged opposite each other.

[0053] Therefore, when multiple keels need to be installed, only the first clip 1021 and the third clip 1031 need to be engaged with one keel, and the second clip 1022 and the fourth clip 1032 need to be engaged with another keel to achieve the connection between the keels, thereby effectively improving the installation efficiency of the keels.

[0054] Furthermore, compared to the traditional method of connecting keels by screwing and welding, the corner piece 1 in this application has high installation efficiency, high installation tolerance, low installation cost, and easy disassembly. It also has a stable structure, high degree of standardization, and strong adaptability, which can meet the needs of mass production. Therefore, it can not only ensure the installation efficiency of the keel, but also further improve the connection effect between keels.

[0055] In one embodiment, the first corner portion 102 further includes a first connecting hole 1023, and the second corner portion 103 further includes a second connecting hole 1033; the corner piece 1 further includes a fastener 104, which is used to pass through the first connecting hole 1023 and the second connecting hole 1033 to increase the distance between the first buckle 1021 and the third buckle 1031, and between the second buckle 1022 and the fourth buckle 1032, or to decrease the distance between the first buckle 1021 and the third buckle 1031, and between the second buckle 1022 and the fourth buckle 1032.

[0056] In the above embodiments, the corner piece 1 further includes a fastener 104, which can increase or decrease the distance between the first corner portion 102 and the second corner portion 103 to further improve the connection strength between the corner piece 1 and the keel and the ease of disassembly of the corner piece 1.

[0057] Among them, such as Figures 1 to 3 As shown, the first corner portion 102 further includes a first connecting hole 1023, which is disposed between the first latch 1021 and the second latch 1022; the second corner portion 103 further includes a second connecting hole 1033, which is disposed between the third latch 1031 and the fourth latch 1032. The fastener 104 can pass through the first connecting hole 1023 and the second connecting hole 1033.

[0058] Therefore, when connecting the keel, this application can reduce the distance between the first clip 1021 and the third clip 1031, and the distance between the second clip 1022 and the fourth clip 1032, by using fastener 104, to further enhance the connection strength between the corner piece 1 and the keel, and improve the connection effect between the keels; while when disassembling the keel, this application can increase the distance between the first clip 1021 and the third clip 1031, and the distance between the second clip 1022 and the fourth clip 1032, by using fastener 104, to reduce the connection effect between the corner piece 1 and the keel, making it easier to disassemble the corner piece 1.

[0059] Furthermore, the fastener 104 in this embodiment can be a screw 7 to improve the applicability of the corner piece 1. Of course, the fastener 104 in this embodiment can also be other components, as long as they can increase or decrease the distance between the first corner 102 and the second corner 103. Those skilled in the art can choose according to actual needs, and this application does not impose specific limitations here.

[0060] In one embodiment, both the first connecting segment 1011 and the second connecting segment 1012 are protrusions that extend out of one side of the connecting portion 101.

[0061] Specifically, such as Figure 1 and Figure 3 As shown, this application sets both the first connecting segment 1011 and the second connecting segment 1012 to protrude from one side of the connecting portion 101. On the one hand, this allows the connecting portion 101, the first corner portion 102 and the second corner portion 103 to form a modular design, which facilitates the mass production of the corner piece 1. On the other hand, it also improves the adaptability of the corner piece 1, so that the connecting portion 101 can be assembled with different first corner portions 102 and second corner portions 103.

[0062] The first connecting segment 1011 can be detachably connected to the first corner portion 102 by means of screwing, riveting, or other means, or the first connecting segment 1011 can also be fixedly connected to the first corner portion 102 by means of adhesive bonding, welding, or other means; the second connecting segment 1012 can be detachably connected to the second corner portion 103 by means of screwing, riveting, or other means, or the second connecting segment 1012 can be fixedly connected to the second corner portion 103 by means of adhesive bonding, welding, or other means. Those skilled in the art can choose according to actual needs, and this application does not impose specific restrictions here.

[0063] In one embodiment, the connecting portion 101 is further provided with a protrusion 105 on the side opposite to the first connecting segment 1011 and the second connecting segment 1012, and the protrusion 105 is used to form the handle of the corner piece 1.

[0064] In the above embodiment, the corner piece 1 further includes a protrusion 105, which is disposed on the side of the connecting portion 101 opposite to the first connecting segment 1011 and the second connecting segment 1012. The protrusion 105 can form a handle of the corner piece 1 to improve the operation performance of the corner piece 1 during use.

[0065] For example Figure 1 and Figure 3 As shown, the protrusion 105 can improve the installation efficiency of the corner piece 1 during installation and the disassembly efficiency during disassembly.

[0066] According to another embodiment of this application, a keel mounting structure is provided, which includes a first keel 2, a second keel 3 and a corner piece 1 of this application, wherein the first keel 2 is connected to the second keel 3 through the corner piece 1.

[0067] Specifically, such as Figure 4 As shown, in this embodiment of the application, the keel installation structure connects the first keel 2 and the second keel 3 through the corner piece 1. Only the first buckle 1021 and the third buckle 1031 need to be engaged with one keel, and the second buckle 1022 and the fourth buckle 1032 need to be engaged with the other keel to realize the connection between the keels, which effectively improves the installation efficiency of the keels.

[0068] In one embodiment, the first keel 2 and the second keel 3 are both open keels 5 formed by the first side 501, the second side 502 and the third side 503; or, the first keel 2 and the second keel 3 are both tubular keels 6 formed by the fourth side 601, the fifth side 602, the sixth side 603 and the seventh side 604, and have cavities 605.

[0069] In the above embodiments, see Figure 5 The first side 501, the second side 502, and the third side 503 are used to form the supporting edges of the open keel 5. The open keel 5 can be connected to the wall through any one or any two supporting edges to install the open keel 5 on the wall, which is convenient for subsequent decoration of the wall through the open keel 5; or, the open keel 5 can also be connected to other keels through any one, any two, or any three supporting edges to install the open keel 5 with the keel, which is convenient for subsequent decoration through the keel.

[0070] In the above embodiments, see Figure 7The fourth side 601, the fifth side 602, the sixth side 603, and the seventh side 604 are used to form the supporting edges of the tubular keel 6. The tubular keel 6 can be connected to the wall through the supporting edges to install the tubular keel 6 on the wall, which is convenient for subsequent decoration of the wall through the tubular keel 6; or, the tubular keel 6 can also be connected to other keels through the supporting edges to install the tubular keel 6 with the keel, which is convenient for subsequent decoration through the keel.

[0071] Among them, the tubular keel 6 has a cavity 605, which can absorb the external force borne by the tubular keel 6 after the tubular keel 6 is installed, so that the tubular keel 6 has a stronger resistance to deformation; on the other hand, it can also reduce resonance and improve the sound insulation effect of the room; and on the other hand, it can also meet the pipeline integration design, so as to realize more efficient use of the tubular keel 6.

[0072] In some embodiments, one end of the first side 501 is connected to the second side 502 via the first slot 504, and the other end of the first side 501 is connected to the third side 503 via the second slot 505; the first slot 504 engages with the first buckle 1021, and the second slot 505 engages with the third buckle 1031; or, the first slot 504 engages with the second buckle 1022, and the second slot 505 engages with the fourth buckle 1032.

[0073] In the above embodiment, one end of the first side 501 is connected to the second side 502 through the first slot 504, and the other end of the first side 501 is connected to the third side 503 through the second slot 505, so that the first side 501 is arranged opposite to the opening, and the second side 502 and the third side 503 are arranged opposite to each other. In this way, on the one hand, it can meet the needs of mass production in the factory and improve the standardization of the opening keel 5; on the other hand, it can also improve the transportation and modular assembly efficiency of the opening keel 5, and realize more efficient installation of the opening keel 5; furthermore, it can also provide an installation area for pipelines, making the opening keel 5 more practical.

[0074] Among them, such as Figure 5 and Figure 6 As shown, since the first side 501 and the second side 502 are connected by the first slot 504, and the first side 501 and the third side 503 are connected by the second slot 505, when the first side 501, the second side 502 and the third side 503 are subjected to a large external force, the external force can be transferred to the first slot 504 and the second slot 505 for absorption. That is, the structure of the open keel 5 is reinforced by the first slot 504 and the second slot 505, which further improves the deformation resistance of the open keel 5.

[0075] In addition, the first slot 504 can also engage with the first buckle 1021, and the second slot 505 can also engage with the third buckle 1031 to connect the corner piece 1 to the open keel 5; or, the first slot 504 can also engage with the second buckle 1022, and the second slot 505 can also engage with the fourth buckle 1032 to connect the corner piece 1 to the open keel 5.

[0076] Therefore, in this embodiment of the application, the slot of the open keel 5 and the corner piece 1 are matched to effectively ensure the tight engagement between the open keel 5 and the corner piece 1, avoiding the problem of poor installation effect of the keel installation structure caused by gaps between the open keel 5 and the corner piece 1.

[0077] In one embodiment, the open keel 5 further includes a first bending portion 506 and a second bending portion 507. The first bending portion 506 is connected to the second side 502 through a third slot 508, and the second bending portion 507 is connected to the third side 503 through a fourth slot 509.

[0078] Specifically, such as Figure 5 and Figure 6 As shown, the opening of the open keel 5 is also provided with a first bending part 506 and a second bending part 507. The first bending part and the second bending part can enhance the external force that the opening of the open keel 5 can withstand, and prevent the second side 502 and the third side 503 from moving towards each other and causing the open keel 5 to deform.

[0079] Among them, a third slot 508 is provided between the first bending part 506 and the second side 502, and a fourth slot 509 is provided between the second bending part 507 and the third side 503. The third slot 508 and the fourth slot 509 can further absorb the external force borne by the second side 502 and the third side 503, making the deformation resistance of the open keel 5 stronger.

[0080] In addition, the third slot 508 and the fourth slot 509 can also be fitted with corner pieces to achieve the connection between the corner piece 1 and the open keel 5.

[0081] In one embodiment, a first mounting hole 5011 is provided on the first side 501; the keel mounting structure also includes a screw 7, which can pass through the first mounting hole 5011 to connect the open keel 5 to the wall.

[0082] Specifically, such as Figure 6 As shown, in this embodiment of the application, a first mounting hole 5011 is provided on the first side 501, so that the screw 7 can pass through the first mounting hole 5011 to connect the open keel 5 to the wall, which effectively improves the connection efficiency between the open keel 5 and the wall.

[0083] In one embodiment, the keel mounting structure further includes a third keel 4, which is connected to the first keel 2 via a corner piece 1; and / or, the third keel 4 is connected to the second keel 3 via a corner piece 1.

[0084] Specifically, such as Figure 4 As shown, in this embodiment of the application, the keel installation structure connects the first keel 2, the second keel 3 and the third keel 4 through the corner piece 1, which effectively improves the installation efficiency of the keel installation structure.

[0085] The first keel 2 extends along a first direction, the second keel 3 extends along a second direction, and the third keel 4 extends along a third direction. The first keel 2, the second keel 3, and the third keel 4 are then connected by corner pieces 1, so that the first keel 2, the second keel 3, and the third keel 4 can form a keel frame, making the keel more versatile.

[0086] It should be noted that in the embodiments of this application, the first direction is the direction extending along the Z-axis, the second direction is the direction extending along the X-axis, and the third direction is the direction extending along the Y-axis. Of course, in other embodiments, the first direction, the second direction, and the third direction may also extend towards other axes. Those skilled in the art can choose according to actual needs, and this application does not impose specific limitations here.

[0087] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0088] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A corner piece, characterized in that, include: A connecting part (101) is provided on one side, wherein a first connecting segment (1011) and a second connecting segment (1012) are provided; A first corner portion (102) and a second corner portion (103), wherein the first corner portion (102) is connected to the first connecting segment (1011) and the second corner portion (103) is connected to the second connecting segment (1012); the first corner portion (102) includes a first buckle (1021) and a second buckle (1022), and the second corner portion (103) includes a third buckle (1031) and a fourth buckle (1032); the first buckle (1021) and the third buckle (1031) are arranged opposite to each other, and the second buckle (1022) and the fourth buckle (1032) are arranged opposite to each other.

2. The corner piece according to claim 1, characterized in that, The first corner portion (102) further includes a first connecting hole (1023), and the second corner portion (103) further includes a second connecting hole (1033); It also includes a fastener (104) for passing through the first connecting hole (1023) and the second connecting hole (1033) to increase the distance between the first latch (1021) and the third latch (1031), and between the second latch (1022) and the fourth latch (1032), or to decrease the distance between the first latch (1021) and the third latch (1031), and between the second latch (1022) and the fourth latch (1032).

3. The corner piece according to claim 1, characterized in that, Both the first connecting segment (1011) and the second connecting segment (1012) are protrusions that extend out of one side of the connecting portion (101).

4. The corner piece according to claim 1, characterized in that, The connecting part (101) is provided with a protrusion (105) on the side opposite to the first connecting segment (1011) and the second connecting segment (1012), and the protrusion (105) is used to form the handle of the corner piece (1).

5. A keel installation structure, characterized in that, It includes a first keel (2), a second keel (3) and a corner piece (1) as described in any one of claims 1-4, wherein the first keel (2) is connected to the second keel (3) via the corner piece (1).

6. The keel installation structure according to claim 5, characterized in that, The first keel (2) and the second keel (3) are both open keels (5) with openings formed by the first side (501), the second side (502) and the third side (503); Alternatively, the first keel (2) and the second keel (3) are both tubular keels (6) with cavities (605) formed by the fourth side (601), the fifth side (602), the sixth side (603) and the seventh side (604).

7. The keel installation structure according to claim 6, characterized in that, One end of the first side (501) is connected to the second side (502) through the first slot (504), and the other end of the first side (501) is connected to the third side (503) through the second slot (505); The first slot (504) engages with the first buckle (1021), and the second slot (505) engages with the third buckle (1031); or, the first slot (504) engages with the second buckle (1022), and the second slot (505) engages with the fourth buckle (1032).

8. The keel installation structure according to claim 7, characterized in that, The open keel (5) further includes a first bending part (506) and a second bending part (507). The first bending part (506) is connected to the second side (502) through a third slot (508), and the second bending part (507) is connected to the third side (503) through a fourth slot (509).

9. The keel installation structure according to claim 7, characterized in that, A first mounting hole (5011) is provided on the first side (501); It also includes screws (7) that can pass through the first mounting hole (5011) to connect the open keel (5) to the wall.

10. The keel installation structure according to claim 5, characterized in that, It also includes a third keel (4), which is connected to the first keel (2) via the corner piece (1); and / or, the third keel (4) is connected to the second keel (3) via the corner piece (1).

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