Light steel keel corner anti-cracking piece and suspended ceiling corner structure

Abstract

The utility model provides a light steel keel corner anti-cracking piece and a suspended ceiling corner structure. The light steel keel corner anti-cracking piece comprises a bottom plate, a first flange, a second flange and a plurality of forming indentation lines, wherein the first flange and the second flange are bent from the bottom plate to one side, and the forming indentation lines are formed on the bottom plate. A folding part connected with the bottom plate is defined by the forming indentation lines, the folding part is folded to form a preset angle with the bottom plate, a containing space for containing the covering keel is defined by the folded folding part and the first flanging, and the containing space limits displacement of the covering keel in the width direction. The second turnups are used for limiting displacement of the cladding keels in the length direction, the at least two second turnups are formed on the bottom plate in an intersecting mode, and the second turnups correspond to the keels in a one-to-one mode. The folding part comprises a limiting part with one end folded and formed, the distance between the limiting part and the bottom plate is matched with the height of the covering keel, and the limiting part is used for limiting displacement of the covering keel in the height direction. The suspended ceiling corner reinforcing structure plays a role in reinforcing the suspended ceiling corner, ensures the flatness of the gypsum board, and prevents the gypsum board from losing efficacy due to fracture.

Description

Technical Field

[0001] The utility model relates to the technical field of ceiling anti-cracking, in particular to a light steel keel corner anti-cracking piece. The utility model also relates to a ceiling corner structure adopting the light steel keel corner anti-cracking piece. Background Art

[0002] In the existing ceiling structure, due to the fact that materials and installation stress are prone to concentrate at the corner position, and the light steel keel at the corner is disconnected as the construction direction changes, the keel does not have integrity at the corner position, so stress is easily concentrated and released here, resulting in the cracking of the gypsum board, and further affecting the service life of the building. In order to avoid the above problems, anti-cracking pieces are used in the prior art to connect the ceiling corners.

[0003] Since the existing ceiling corner anti-cracking piece is used to connect to the bottom plate and vertical plate of the keel at the same time, the corner anti-cracking piece is fixed to the two vertical surfaces of the keel through rivets, so as to achieve the purpose of increasing the strength of the ceiling corner structure and reducing the installation stress.

[0004] However, this method does not avoid the cracking of the gypsum board. Since the anti-cracking piece and each keel need to be fastened by rivets, not only is it easy to pull the bottom plate of the anti-cracking piece to form bulges or wrinkles during fastening, but also the head of the protruding rivet protrudes from the bottom plate of the anti-cracking piece. Due to the bulges, wrinkles and the protrusion of the rivet head, there is a gap between the two. When the gypsum board is fixed to the anti-cracking piece through fasteners, it is easy to tear the gypsum board and cannot achieve a good use effect. Summary of the Utility Model

[0005] In view of this, the utility model aims to provide a light steel keel corner anti-cracking piece to prevent the gypsum board from being torn during fixing and effectively solve the problem that the ceiling light slot or corner node is prone to cracking.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A light steel keel corner anti-cracking piece includes a bottom plate, a first flanging and a second flanging bent from the bottom plate to one side, and a plurality of formed indentation lines formed on the bottom plate;

[0008] The formed indentation lines enclose a folding part connected to the bottom plate. The folding part is folded at a preset angle with the bottom plate. After folding, a receiving space for receiving a covering keel is formed between the folding part and the first flanging. The receiving space restricts the displacement of the covering keel in the width direction;

[0009] The second flanging is used to limit the displacement of the covering keel in its own length direction. At least two second flangings intersect and are formed on the bottom plate, and the second flangings are arranged in one-to-one correspondence with the keels.

[0010] The folding part includes a limiting part formed by folding one end. The distance between the limiting part and the bottom plate is adapted to the height of the covering keel, and the limiting part is used to limit the displacement of the covering keel in the height direction.

[0011] Further, an auxiliary folding part is also provided in the middle of the bottom plate. The bottom plate is rectangular. The two second flangings intersect at the first corner of the bottom plate. The diagonal of the first corner is the third corner, and the plane formed by connecting the first corner and the third corner is the central plane.

[0012] The two auxiliary folding parts are symmetrically arranged on both sides of the central plane.

[0013] The two auxiliary folding parts are used to limit the displacement of the secondary keel.

[0014] Further, the folding part is in a "U" shape, and the open end of the folding part is connected to the bottom plate.

[0015] Further, the end of the limiting part is semicircular.

[0016] Further, the forming indentation line includes a first pressing line and a second pressing line.

[0017] The distances between the first pressing line and the second pressing line and the first flanging are different.

[0018] Further, the first pressing line encloses a first folding part, and the first folding part is perpendicular to the bottom plate.

[0019] The distance between the first folding part and the first flanging is 50 mm, and the length range of the first folding part is between 30 mm and 35 mm.

[0020] Further, the second pressing line encloses a second folding part, and the second folding part is perpendicular to the bottom plate.

[0021] The distance between the second folding part and the first flanging is 60 mm, and the length range of the second folding part is between 40 mm and 45 mm.

[0022] Further, the width range of the folding part is between 8 mm and 12 mm.

[0023] Further, both the first flanging and the second flanging are perpendicularly connected to the bottom plate.

[0024] The first flanging and the second flanging are vertically and spaced apart on the bottom plate;

[0025] The height range of the first flanging is 20 mm to 25 mm;

[0026] The height range of the second flanging is 30 mm to 35 mm.

[0027] Compared with the prior art, the utility model has the following advantages:

[0028] For the light steel keel corner crack prevention part of the utility model, by arranging a forming indentation line on the bottom plate, when installing the facing keel, manually knock the folding part formed by the forming indentation line, so that the folding part abuts against the side part of the facing keel relative to the bottom plate, and form a limiting part by manually knocking the top end of the folding part to limit the displacement of the facing keel in the height direction, limit the displacement of the facing keel in the width direction by the abutment of the first flanging and the folding part, and limit the displacement of the facing keel in the length direction by the setting of the second flanging.

[0029] Set like this, avoid the way of installing by rivets when the crack prevention part is fixed to the facing keel, thus avoid the convex or wrinkled deformation of the gypsum board during the installation of the gypsum board, and the phenomenon of gypsum board cracking caused by the protrusion of the end of the rivet, make the crack prevention part play the role of strengthening the ceiling corner, and also ensure the flatness of the gypsum board, and further avoid the failure of the gypsum board due to fracture, and improve the installation effect.

[0030] In addition, by arranging an auxiliary folding part in the middle of the bottom plate, the displacement of the secondary keel is restricted between the two auxiliary folding parts, by supporting the facing keels in both horizontal and vertical directions on the bottom plate, using the folding part to firmly connect the keels to form a whole, and arranging a secondary keel between the two facing keels, a 45° support is formed between the secondary keel and the two facing keels, and the stability of the whole system is increased by using the triangle stability principle.

[0031] In addition, by setting the folding part as a "U" shape, it is convenient for the operator to manually knock the folding part so that one end is bent when it is connected to the bottom plate. And by setting the end of the limiting part as a semi-circle, avoid scratching the operator by the sharp corner, and increase the operation safety.

[0032] Another object of the utility model is to propose a ceiling corner structure, which includes the light steel keel corner crack prevention part as described above, at least two facing keels arranged in the accommodation space, and a secondary keel arranged between the two facing keels.

[0033] For the ceiling corner structure of the utility model, by arranging the light steel keel corner crack prevention part as described above, it not only plays the role of strengthening the strength of the ceiling corner, fundamentally avoids the defect of gypsum board fracture, and increases the service life of the gypsum board. Description of the Drawings

[0034] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0035] Figure 1 It is a schematic three-dimensional structure diagram of the first perspective of the light steel keel corner crack prevention member according to the embodiment of the present utility model;

[0036] Figure 2 It is a schematic three-dimensional structure diagram of the second perspective of the light steel keel corner crack prevention member according to the embodiment of the present utility model;

[0037] Figure 3 It is a schematic three-dimensional structure diagram of the light steel keel corner crack prevention member when forming the folding part and the limiting part according to the embodiment of the present utility model;

[0038] Figure 4 It is a schematic three-dimensional structure diagram of the ceiling corner structure in the state where the limiting part is not formed according to the embodiment of the present utility model;

[0039] Figure 5 It is a schematic bottom view structure diagram of the ceiling corner structure according to the embodiment of the present utility model;

[0040] Figure 6 It is a schematic three-dimensional structure diagram of the ceiling corner structure according to the embodiment of the present utility model.

[0041] Explanation of reference numerals:

[0042] 1, bottom plate; 2, first flanging; 3, second flanging; 4, forming indentation line; 5, first folding part;

[0043] 6, second folding part; 7, auxiliary folding member; 8, face keel; 9, secondary keel;

[0044] 401, first pressing line; 402, second pressing line;

[0045] 501, limiting part;

[0046] 701, third folding part; 702, fourth folding part. Detailed implementation manners

[0047] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0050] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0051] This embodiment relates to a light steel keel corner anti-cracking member. The light steel keel corner anti-cracking member includes a bottom plate 1, a first flanging 2 and a second flanging 3 bent from the bottom plate 1 to one side, and a plurality of formed indentation lines 4 formed on the bottom plate 1. The formed indentation lines 4 enclose a folding part connected to the bottom plate 1. The folding part is folded at a preset angle with the bottom plate 1. An accommodation space for accommodating a face keel 8 is formed between the folded folding part and the first flanging 2, and the accommodation space restricts the displacement of the face keel 8 in the width direction.

[0052] Among them, the second flanging 3 is used to restrict the displacement of the face keel 8 in its own length direction. At least two second flangings 3 intersect and are formed on the bottom plate 1, and the second flangings 3 are arranged in one-to-one correspondence with the keels. The folding part includes a limiting part 501 formed by folding one end. The distance between the limiting part 501 and the bottom plate 1 is adapted to the height of the face keel 8, and the limiting part 501 is used to restrict the displacement of the face keel 8 in the height direction.

[0053] For the light steel keel corner anti-cracking member of this embodiment, by arranging the formed indentation lines 4 on the bottom plate 1, when installing the face keel 8, manually knock the folding part formed by the formed indentation lines 4, so that the folding part abuts against the side of the face keel 8 relative to the bottom plate 1, and form a limiting part 501 by manually knocking the top end of the folding part to restrict the displacement of the face keel 8 in the height direction. The displacement of the face keel 8 in the width direction is restricted by the abutment of the first flanging 2 and the folding part, and the displacement of the face keel 8 in the length direction is restricted by the arrangement of the second flanging 3.

[0054] With such a setting, the method of installing the anti-cracking member and the covering keel 8 by rivets is avoided, so as to prevent the gypsum board from being deformed by the protrusions or wrinkles of the anti-cracking member during installation, and prevent the gypsum board from being cracked due to the protrusion of the end of the rivet. The anti-cracking member not only plays a role in strengthening the corner of the ceiling, but also ensures the flatness of the gypsum board, thereby avoiding the failure of the gypsum board due to fracture and improving the installation effect.

[0055] Based on the above overall introduction, an exemplary structure of the light steel keel corner anti-cracking member in this embodiment is as Figures 1 to 4 shown. An auxiliary folding member 7 is further provided in the middle of the bottom plate 1. The bottom plate 1 is rectangular. The two second flanges 3 intersect at the first corner of the bottom plate 1. The diagonal of the first corner is the third corner. The plane formed by connecting the first corner and the third corner is the central plane. The two auxiliary folding members 7 are symmetrically arranged on both sides of the central plane, and the two auxiliary folding members 7 are used to limit the displacement of the secondary keel 9.

[0056] As Figures 1 to 4 shown, the two second flanges 3 are vertically intersecting and arranged at the first corner A of the bottom plate 1. The first flange 2 is arranged on both sides of the first corner A, and the bending directions of the first flange 2 and the second flange 3 are the same.

[0057] The gap between the first flange 2 and the second flange 3 is used to connect the starting keel.

[0058] In this embodiment, by arranging the auxiliary folding member 7 in the middle of the bottom plate 1, the displacement of the secondary keel 9 is restricted between the two auxiliary folding members 7. By supporting the covering keels 8 in both horizontal and vertical directions on the bottom plate 1, the folding parts are used to firmly connect the keels to form a whole, and the secondary keel 9 is arranged between the two covering keels 8. A 45° support is formed between the secondary keel 9 and the two covering keels 8, and the stability of the whole system is increased by using the triangle stability principle.

[0059] As a preferred implementation manner, as Figure 1 and Figure 2 shown, the folding part is "U"-shaped, and the open end of the folding part is connected to the bottom plate 1. The forming indentation line 4 is formed by stamping. The folding part is formed by the forming indentation line 4. When bending, the open end is the folding line. Such a setting not only saves materials but also facilitates the fixing of the keel. By setting the folding part as "U"-shaped, it is convenient for the operator to manually knock the folding part so that when one end is connected to the bottom plate 1, the other end bends towards the direction close to the covering keel 8.

[0060] Preferably, as Figures 1 to 4 shown, the end of the limiting part 501 is semicircular. By setting the end of the limiting part 501 as semicircular, it is avoided that the sharp corner scratches the operator and the operation safety is increased.

[0061] In order to increase the applicability of the light steel keel corner anti-cracking member, as Figures 2 to 4As shown, the formed indentation line 4 of this embodiment includes a first crease line 401 and a second crease line 402, and the distances between the first crease line 401 and the second crease line 402 and the first flanging 2 are different.

[0062] Furthermore, still as Figures 2 to 4 shown, the first crease line 401 encloses a first folding portion 5, and the first folding portion 5 is perpendicular to the bottom plate 1. The distance L1 between the first folding portion 5 and the first flanging 2 is 50 mm, and the length range of the first folding portion 5 is between 30 mm and 35 mm. The first folding portion 5 of this embodiment is used when installing the ceiling runner 8 of 50 specification, and at this time, the following second folding portion 6 is not turned up. Generally speaking, the height of the ceiling runner 8 of 50 specification is 19 mm. By setting the length of the first folding portion 5 to be between 30 mm and 35 mm, the length of the limiting portion 501 is about between 11 mm and 16 mm, ensuring the structural strength of the limiting portion 501. Specifically, the length of the first folding portion 5 can be 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm and other dimensions. The specific length can be adaptively adjusted according to the thickness of the ceiling runner 8, and is not limited here.

[0063] In addition, as Figures 2 to 3 shown, the second crease line 402 encloses a second folding portion 6, and the second folding portion 6 is perpendicular to the bottom plate 1. The distance L2 between the second folding portion 6 and the first flanging 2 is 60 mm, and the length range of the second folding portion 6 is between 40 mm and 45 mm. The second folding portion 6 of this embodiment is used when installing the ceiling runner 8 of 60 specification, and at this time, the first folding portion 5 is not turned up. The limiting portions 501 on the first folding portion 5 and the second folding portion 6 are folded towards the direction of the first flanging 2.

[0064] Generally speaking, the height of the ceiling runner 8 of 60 specification is 27 mm, and the length of the limiting portion 501 is between 13 mm and 18 mm. Specifically, the length of the second folding portion 6 can be 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm and other dimensions. The specific length can be adaptively adjusted according to the thickness of the ceiling runner 8, and is not limited here.

[0065] As Figures 2 to 4 shown, for the convenience of identification, the width of the folding portion is defined as B, and the range of the width B of the folding portion is between 8 mm and 12 mm.

[0066] As Figures 1 to 4As shown, the auxiliary folding member 7 is the same as the folding portion. The auxiliary folding member 7 is also formed by the formed indentation line 4. It includes two third folding portions 701 and fourth folding portions 702 that are symmetrically arranged with respect to the above-mentioned central plane. The distance between the two third folding portions 701 is 50 mm, and the distance between the two fourth folding portions 702 is 60 mm. The limiting portions 501 on the third folding portion 701 and the fourth folding portion 702 are bent toward the central plane direction.

[0067] Furthermore, as Figures 1 to 4 shown, the first flanging 2 and the second flanging 3 are both perpendicularly connected to the bottom plate 1. The first flanging 2 and the second flanging 3 are perpendicularly and spaced apart on the bottom plate 1. Since the outer shapes of the covering keel 8 and the secondary keel 9 are both cuboid structures, the first flanging 2 and the second flanging 3 are perpendicularly arranged on the bottom plate 1, and the folding portion is correspondingly perpendicular to the bottom plate 1. When the outer shapes of the covering keel 8 or the secondary keel 9 are other structures, the angles of the first flanging 2, the second flanging 3, the folding portion, and the auxiliary folding member 7 with respect to the bottom plate 1 can be adaptively adjusted to be able to fix the covering keel 8 and the secondary keel 9 and ensure the fixing effect.

[0068] In addition, as Figures 1 to 4 shown, the height range of the first flanging 2 is 20 mm to 25 mm. Specifically, the height of the first flanging 2 can be 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm and other dimensions. The height range of the second flanging 3 is 30 mm to 35 mm. Specifically, the height of the second flanging 3 can be 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm and other dimensions. The height of the second flanging 3 is higher than the height of the 60 - specification covering keel 8 to ensure a better positioning effect.

[0069] Another object of this embodiment is to propose a ceiling corner structure. As Figures 5 to 6 shown, this ceiling corner structure includes the above - mentioned light steel keel corner crack - prevention member, at least two covering keels 8 arranged in the accommodating space, and a secondary keel 9 arranged between the two covering keels 8.

[0070] In the ceiling corner structure of this embodiment, by setting the above - mentioned light steel keel corner crack - prevention member, and by setting two covering keels 8 arranged vertically and simultaneously abutting against the second flanging 3, the other ends of the covering keels 8 are respectively connected to the edge keels of the wall. A horizontal and vertical support is formed between the wall and the crack - prevention member. A secondary keel 9 is arranged between the two covering keels 8, and is limited by the auxiliary folding member 7 so that the secondary keel 9 forms a 45° support with the covering keel 8. Using the principle of triangle stability, the stability of the ceiling corner structure is increased.

[0071] The ceiling corner structure of this embodiment not only strengthens the strength of the ceiling corner, fundamentally avoids the defect of the gypsum board breaking, and increases the service life of the gypsum board.

[0072] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A light steel keel corner anti-cracking part, characterized by: It comprises a base plate (1), a first flange (2) and a second flange (3) bent toward one side from the base plate (1), and a plurality of molded indentation lines (4) molded on the base plate (1); The molded indentation line (4) surrounds a folded portion connected to the bottom plate (1); the folded portion is folded to form a preset angle with the bottom plate (1); after folding, the folded portion and the first flange (2) surround a receiving space for receiving the covering keel (8); the receiving space limits the displacement of the covering keel (8) in the width direction; The second flange (3) is used to limit the displacement of the covering keel (8) in the length direction, at least two of the second flanges (3) are intersectingly formed on the bottom plate (1), and the second flanges (3) are arranged in a one-to-one correspondence with the keel; The folding portion comprises a limiting portion (501) folded into shape at one end, the distance between the limiting portion (501) and the bottom plate (1) being adapted to the height of the cladding keel (8), and the limiting portion (501) being used to limit the displacement of the cladding keel (8) in a height direction.

2. The light steel keel corner anti-cracking member according to claim 1 is characterized in that: An auxiliary folding piece (7) is also provided in the middle of the bottom plate (1); the bottom plate (1) is rectangular; the two second flanges (3) intersect at a first corner of the bottom plate (1); the diagonal angle opposite the first corner is a third corner; and a plane formed by connecting the first corner and the third corner is a center plane; The two auxiliary folding members (7) are symmetrically arranged on both sides of the central plane; The two auxiliary folding members (7) are used to limit the displacement of the secondary keel (9).

3. The light steel keel corner anti-cracking member according to claim 2 is characterized in that: The folding portion is "U"-shaped, and the open end of the folding portion is connected to the bottom plate (1).

4. The light steel keel corner anti-cracking member according to claim 3 is characterized in that: The end of the limiting portion (501) is semicircular.

5. The light steel keel corner anti-cracking member according to claim 1 is characterized in that: The molded indentation lines (4) include a first indentation line (401) and a second indentation line (402); The first pressing line (401) and the second pressing line (402) are spaced at different distances from the first flange (2).

6. The light steel keel corner anti-cracking member according to claim 5 is characterized in that: The first pressing line (401) surrounds and forms a first folding portion (5), and the first folding portion (5) is perpendicular to the bottom plate (1); The distance between the first folded portion (5) and the first flange (2) is 50 mm, and the length of the first folded portion (5) is between 30 mm and 35 mm.

7. The light steel keel corner anti-cracking member according to claim 6 is characterized in that: The second pressing line (402) surrounds and forms a second folding portion (6), and the second folding portion (6) is perpendicular to the bottom plate (1); The distance between the second folded portion (6) and the first flange (2) is 60 mm, and the length of the second folded portion (6) is in the range of 40 mm to 45 mm.

8. The light steel keel corner anti-cracking member according to claim 7 is characterized in that: The width of the first folding portion or the second folding portion is in the range of 8 mm to 12 mm.

9. The light steel keel corner anti-cracking member according to claim 8 is characterized in that: The first flange (2) and the second flange (3) are both vertically connected to the bottom plate (1); The first flange (2) and the second flange (3) are arranged vertically and spaced apart on the bottom plate (1); The height of the first flange (2) ranges from 20 mm to 25 mm; The height of the second flange (3) is in the range of 30 mm to 35 mm.

10. A ceiling corner structure, characterized in that: It comprises the light steel keel corner anti-cracking component according to any one of claims 1 to 9, at least two covering keels (8) arranged in the accommodation space, and a secondary keel (9) arranged between the two covering keels (8).

Images