Z-shaped purline

Abstract

The utility model discloses a Z-shaped purline which is composed of a web plate and wing plates, the web plate is integrally formed in a bending mode, the wing plates are located at the two ends of the web plate, a plurality of bending angles are arranged between the web plate and the wing plates, avoiding notches are formed in the inner sides of the bending angles, and supporting pieces located on the inner sides of the bending angles are installed between the web plate and the wing plates. According to the Z-shaped purline, before steel is cold-bent into the purline, the avoiding notch is cut in the proper position of the steel, namely the inner side of the bent angle of the purline, and when the steel is cold-bent, the avoiding notch can prevent redundant steel from being generated during bending, so that the problems that the inner side and the outer side of the bent angle protrude and are uneven, the bending difficulty is large, and the internal stress is large are solved; in addition, the supporting pieces are further arranged on the inner sides of the folded corners, the situation that the strength of the purline is affected by the cut avoiding notches is avoided, and meanwhile the stress degree of the purline is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel purlins, in particular to a Z-shaped purlin. Background Art

[0002] Modern steel structure buildings generally use C / Z steel. Using Z steel as the purlin of the house has better bearing capacity. Cold-bent thin-walled Z-shaped purlins are widely used maintenance components in light steel structure systems. Their cross-sectional characteristics are that the entire web and wing plate are of the same thickness. In actual stress, in most cases, the wing plate may be subjected to greater stress.

[0003] Moreover, when the purlins are cold-bent, the later use strength of the Z-shaped purlins is also greatly affected, because on the inner side of the bending angle, the excess steel material will cause the angle to bulge outward and generate greater resistance, making bending difficult and the internal stress generated at the bending point is relatively large. Therefore, how to make the wing plate bear more strength, be more stable in use, and have a longer service life, so it is urgent to propose a Z-shaped purlin with better performance. Utility Model Content

[0004] The utility model aims to provide a method for solving the problem that the wing plate part of the Z-shaped purlin is subjected to large force, and the excess steel material when bending the inner angle causes difficulty in bending and large internal stress, which affects the performance of the Z-shaped purlin.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A Z-shaped purlin, which consists of a web formed by integral bending and wing plates located at both ends of the web, with multiple bending angles between the web and the wing plates, avoidance notches are provided on the inner sides of the bending angles, and a support member located on the inner sides of the bending angles is installed between the web and the wing plates.

[0007] A further technical solution is: the fixed end of the support member is connected to the web, and the supporting end of the support member is pressed against the wing plate.

[0008] A further technical solution is that the support member is connected to the web by rivets or screws.

[0009] A further technical solution is: the support member is an angle code.

[0010] A further technical solution is that the support member is welded from two steel bars and a plurality of evenly distributed angle steels.

[0011] A further technical solution is that the length of the steel bar is consistent with the length of the wing plate.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] The utility model provides a Z-shaped purlin. Before the steel is cold-bent into the purlin, an avoidance notch is cut at a suitable position of the steel, that is, the inner side of the bending angle of the purlin. When the steel is cold-bent, the avoidance notch can avoid the generation of excess steel during the bending, so as to prevent the problems of uneven bulges inside and outside the bending angle, great bending difficulty and great internal stress, and facilitate the processing of the Z-shaped purlin. A support member is also provided on the inner side of the bending angle to avoid the cut avoidance notch from affecting the strength of the purlin, and further improve the stress degree of the purlin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a Z-shaped purlin.

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the structure from a side view.

[0016] Figure numerals: 1. web; 2. wing plate; 3. avoidance notch; 4. support member; 41. steel bar; 42. angle steel. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 present invention can be understood according to specific circumstances.

[0023] Embodiment 1:

[0024] In this embodiment, Figure 1 and Figure 2 As shown, a Z-shaped purlin is composed of a web 1 formed by integral bending and wing plates 2 located at both ends of the web 1, a plurality of bending angles are provided between the web 1 and the wing plates 2, avoidance notches 3 are provided on the inner sides of the bending angles, and a support member 4 located on the inner sides of the bending angles is installed between the web 1 and the wing plates 2.

[0025] After the flattened steel is placed on a machining device (such as a milling machine or a machining center), one or more avoidance notches 3 are processed at the part of the steel to be bent, and the depth is generally not more than half of the thickness of the steel to ensure the strength of the steel. The steel is then placed on a bending machine for bending to form a Z-shaped purlin consisting of a web 1 and wing plates 2 located at both ends of the web 1. Finally, the support member 4 is installed on the inner side of the bending angle to form a reinforced support to ensure that the strength of the Z-shaped purlin can withstand greater external forces.

[0026] Preferably, the fixed end of the support member 4 is connected to the web 1 , and the supporting end of the support member 4 is pressed against the wing plate 2 .

[0027] The web 1 is the main body, and the support member 4 is connected to it, which is more stable and convenient for operation.

[0028] Preferably, the support member 4 is connected to the web 1 by rivets or screws.

[0029] Through holes are provided on the web 1 and the support member 4 to facilitate connection with rivets or screws.

[0030] Preferably, the support member 4 is an angle bracket.

[0031] Preferably, the support member 4 is formed by welding two steel bars 41 and a plurality of evenly distributed angle steels 42 .

[0032] Preferably, the length of the steel bar 41 is consistent with the length of the wing panel 2 .

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A Z-shaped purlin, the Z-shaped purlin comprising a web (1) formed by bending in one piece and wing plates (2) located at both ends of the web (1), characterized in that: There are a plurality of bending angles between the web (1) and the wing plate (2), avoidance notches (3) are provided on the inner sides of the bending angles, and support members (4) located on the inner sides of the bending angles are installed between the web (1) and the wing plate (2).

2. The Z-shaped purlin according to claim 1, characterized in that: The fixed end of the support member (4) is connected to the web (1), and the supporting end of the support member (4) is pressed against the wing plate (2).

3. The Z-shaped purlin according to claim 1, characterized in that: The support member (4) is connected to the web (1) via rivets or screws.

4. The Z-shaped purlin according to claim 1, characterized in that: The support member (4) is an angle bracket.

5. The Z-shaped purlin according to claim 1, characterized in that: The support member (4) is formed by welding two steel bars (41) and a plurality of evenly distributed angle steels (42).

6. The Z-shaped purlin according to claim 5, characterized in that: The length of the steel bar (41) is consistent with the length of the wing plate (2).

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