Concealed fixing device for long metal sheets

Abstract

This utility certificate discloses a hidden fastener for long metal sheets, relating to the field of fastener technology, and comprising a first connecting sheet, a second connecting sheet, a snap clasp, a first snap bar and snap grooves, a second connecting sheet is provided on one side of the first connecting sheet, the snap clasp is provided between the upper part of one end of the first connecting sheet and the upper part of one end of the second connecting sheet, the snap grooves are provided on the surfaces of the upper part and the lower part of the snap clasp, the first snap bar and a second snap bar are arranged inside the snap groove,and the first snap bar and the second snap bar are respectively arranged at the surfaces of two ends of the first connecting sheet and the second connecting sheet. The metal sheets are connected by the snap clasps, so that force application points are formed on the metal sheets to fix them, due to the metal sheets overlapping in certain positions, the snap clasps are arranged at the overlapping position to hide, the snap clasps and the metal sheets are designed as a mother-son structure, the snap clasps do not detach from the metal sheets after the installation is completed, thereby improving the integrity and aesthetics of the product, providing a good fixing effect, and avoiding any tilting phenomenon during use. Figure to be published with the abstract: Figure 1,

Description

Title of the invention: Concealed fixing device for long metal sheets Technical field

[0001] This utility certificate relates to the field of fastening device technology, in particular a hidden fastening device for long metal sheets. TECHNICAL BACKGROUND

[0002] In the field of building construction, it is often necessary to construct temporary buildings, generally in order to install quickly, long strip-shaped metal sheets are used externally, which are welded to each other to form partitions, the existing long strip-shaped metal sheets must be arranged one by one at identical intervals during installation, and then welded to an installation surface, but when the sheets are too long, a tilting phenomenon occurs, in this case, it is necessary to weld and fix with the exposed sheets at the front or back face of the product, which results in additional external welds, resulting in a significant decline in aesthetics, moreover, the welds may be oxidized and rusted by rain, which may lead to unwelding. DISCLOSURE OF UTILITY CERTIFICATE

[0003] To overcome the drawbacks in the existing art, the present utility model provides a hidden fixing device for long metal sheets, thereby solving the problems mentioned in the technical context.

[0004] To achieve the above purpose, this utility certificate proposes the following technical solution: a hidden fastening device for long metal sheets, comprising a first connecting sheet, a second connecting sheet, a snap clasp, a first snap bar and snap grooves, a second connecting sheet is provided on one side of the first connecting sheet, the snap clasp is provided between the upper part of one end of the first connecting sheet and the upper part of one end of the second connecting sheet, the snap grooves are provided on the surfaces of the upper part and the lower part of the snap clasp, the first snap bar and a second snap bar are arranged inside the snap groove,and the first interlocking bar and the second interlocking bar are respectively provided at the surfaces of two ends of the first connecting sheet and the second connecting sheet.

[0005] Preferably, the first connecting sheet and the second connecting sheet are inclined in the middle, the first connecting sheet and the second connecting sheet are bent at both ends, and a bending angle between the bent ends of the first connecting sheet and the second connecting sheet and the horizontal plane is 22 degrees.

[0006] Preferably, there are two engagement grooves, the two engagement grooves each have a smooth internal surface, the internal wall of each of the engagement grooves is in sliding contact with the surfaces of the first engagement bar and the second engagement bar.

[0007] Preferably, the cross-sectional shape of the first interlocking bar matches the cross-sectional shape of the second interlocking bar, the upper portion of the first interlocking bar is flat, and protruding structures are provided on either side of the first interlocking bar, and the upper portion of each of the protruding structures provided on either side of the first interlocking bar has a slope and the slope angle is 45 degrees.

[0008] Preferably, the cross-sectional shape of each of the first engagement bar and the second engagement bar corresponds to the inner shape of the engagement groove, and the first engagement bar and the second engagement bar are engaged within the engagement groove by sliding fit.

[0009] Preferably, both sides of the snap clasp are smooth and flat planes, both sides of the snap clasp are respectively aligned with one end of the first connecting sheet and one end of the second connecting sheet, the first connecting sheet and the second connecting sheet press closely against the surface of the snap clasp, the distance between both ends of the first connecting sheet and the second connecting sheet is 112.5 mm, and the thickness of the first connecting sheet and the second connecting sheet is 1.5 mm.

[0010] This utility certificate provides a hidden fastening device for long metal sheets. BENEFICIAL EFFECTS

[0011] The hidden fastening device for long metal sheets enables the metal sheets to be connected by the snap clasp using the combination of the components, so that force application points are formed on the metal sheets to fix them, due to the metal sheets overlapping in certain positions, the snap clasps are arranged at the overlapping position to hide, the snap clasps and the metal sheets are designed as a mother-son structure, the snap clasps do not detach metal sheets after installation is completed, which can improve the integrity and aesthetics of the product, provide a good fixing effect and avoid any tilting phenomenon during use. DESCRIPTION OF FIGURES

[0012] [Fig. 1] is a diagram of the overall structure of this utility certificate;

[0013] [Fig.2] is a diagram of the structure of the first connecting sheet of the present utility certificate;

[0014] [Fig.3] is a top diagram of the structure of this utility certificate;

[0015] [Fig.4] is a diagram of the structure of the first interlocking bar of the present utility certificate;

[0016] [Fig.5] is a diagram of the structure of the connecting clasp of this utility certificate;

[0017] In the figures, 1 - First connecting sheet; 2 - Second connecting sheet; 3 - Connecting clasp; 4 - First engaging bar; 5 - Second engaging bar; 6 - Engaging groove. DETAILED DESCRIPTION OF THE UTILITY CERTIFICATE

[0018] The technical solutions in the exemplary embodiments of this utility certificate will be described clearly and completely by the following description with reference to the figures, in which said exemplary embodiments are only a part of the exemplary embodiments instead of all exemplary embodiments. The exemplary embodiments based on this utility certificate and other exemplary embodiments obtained by the person skilled in the art without creative work are to be included within the scope of protection of this utility certificate.

[0019] Referring to Figures 1 to 5, the present utility certificate provides the following technical solution: a hidden fastening device for long metal sheets, comprising a first connecting sheet 1, a second connecting sheet 2, a snap clasp 3, a first snap bar 4 and snap grooves 6, a second connecting sheet 2 is provided on one side of the first connecting sheet 1, the snap clasp 3 is provided between the upper part of one end of the first connecting sheet 1 and the upper part of one end of the second connecting sheet 2, the snap grooves 6 are provided on the surfaces of the upper part and the lower part of the snap clasp 3, the first snap bar 4 and a second snap bar 5 are arranged inside the snap groove 6,and the first interlocking bar 4 and the second interlocking bar 5 are respectively arranged at the surfaces of two ends of the first connecting sheet 1 and the second connecting sheet 2. By means of , the combination of the components, the first snap bar 4 and the second snap bar 5 at the ends of the first connecting sheet 1 and the second connecting sheet 2 are inserted inside the snap groove 6 by sliding fit, the metal sheets are connected by the snap clasps 3, so that force application points are formed on the metal sheets to fix them, due to the metal sheets overlapping in certain positions, the snap clasps 3 are arranged at the overlapping position to hide, the snap clasps and the metal sheets are designed as a mother-son structure, the snap clasps do not detach from the metal sheets after the installation is completed, thereby improving the integrity and aesthetics of the product, providing a good fixing effect and avoiding any tilting phenomenon during use.

[0020] As shown in Figures 1 and 4, in an embodiment provided by the present utility certificate, the first connecting sheet 1 and the second connecting sheet 2 are inclined in the middle, the first connecting sheet 1 and the second connecting sheet 2 are bent at both ends, and a bending angle between the bent ends of the first connecting sheet 1 and the second connecting sheet 2 and the horizontal plane is 22 degrees, thereby facilitating a connection between both ends of the first connecting sheet 1 and the second connecting sheet 2 and the interlocking groove 6.

[0021] As shown in Figures 1 and 5, in an embodiment provided by the present utility certificate, the engagement grooves 6 are two in number, the two engagement grooves 6 each have a smooth inner surface, the inner wall of each of the engagement grooves 6 is in sliding contact with the surfaces of the first engagement bar 4 and the second engagement bar 5, by quickly inserting the first engagement bar 4 and the second engagement bar 5 inside the engagement groove 6, a quick installation can be realized.

[0022] As shown in Figures 1 and 5, in an embodiment provided by this utility certificate, the cross-sectional shape of each of the first engagement bar 4 and the second engagement bar 5 corresponds to the inner shape of the engagement groove 6, and the first engagement bar 4 and the second engagement bar 5 are engaged inside the engagement groove 6 by sliding fit. The cross-sectional shape of the first engagement bar 4 corresponds to the cross-sectional shape of the second engagement bar 5, the upper portion of the first engagement bar 4 is flat, and protruding structures are provided on either side of the first engagement bar 4, and the upper portion of each of the protruding structures provided on either side of the first engagement bar 4 has a slope and the slope angle is 45 degrees, such protruding structures provided on either side of the first engagement bar 4 and the second engagement bar 5 facilitate engagement inside the engagement groove 6, allowing fixation of the two ends of the metal sheet.

[0023] As shown in Figures 1 and 5, in an embodiment provided by the present utility certificate, both sides of the snap clasp 3 are smooth and flat planes, both sides of the snap clasp 3 are respectively aligned with one end of the first connecting sheet 1 and with one end of the second connecting sheet 2, the first connecting sheet 1 and the second connecting sheet 2 closely press against the surface of the snap clasp 3, the distance between both ends of the first connecting sheet 1 and the second connecting sheet 2 is 112.5 mm, and the thickness of the first connecting sheet and the second connecting sheet is 1.5 mm.

[0024] Working principle: By using the combination of components, the first snap bar 4 and the second snap bar 5 at the ends of the first connecting sheet 1 and the second connecting sheet 2 are inserted inside the snap groove 6 by sliding fit, the metal sheets are connected by the snap clasps 3, so that force application points are formed on the metal sheets to fix them, due to the metal sheets overlapping in certain positions, the snap clasps 3 are arranged at the overlapping position to hide, the snap clasps and the metal sheets are designed as a mother-son structure, the snap clasps do not detach from the metal sheets after the installation is completed, thereby improving the integrity and aesthetics of the product,to provide a good fixing effect and avoid any tilting phenomenon during use.

[0025] In this utility certificate, 1 - First connecting sheet; 2 - Second connecting sheet; 3 - Connecting clasp; 4 - First snap bar; 5 - Second snap bar; 6 - Snap groove. The components are general standard components or components known to those skilled in the art, and their structures and principles are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0026] The above description shows and describes the basic principles, main features and advantages of this utility certificate. It will be obvious to those skilled in the art that this utility certificate is not limited to the details of the preceding exemplary embodiments and all other forms of implementation of this utility certificate. utility without departing from the spirit and features of this utility certificate are possible. Therefore, in all respects, the exemplary embodiments should be considered exemplary rather than limiting description, the scope of this utility certificate is defined by the claims rather than the above description and is intended to cover all modifications to the meaning and scope of equivalent elements of the claims in this utility certificate. No reference in the claims should be construed as limiting the implied claims.

[0027] Further, it will be understood that, although the present disclosure is described in accordance with the embodiments, each embodiment does not include only an independent technical solution, the description is only provided for the sake of clarity, and one skilled in the art should consider this utility certificate as a whole, the technical solutions in the various exemplary embodiments may be suitably combined to form other embodiments that can be understood by one skilled in the art.

Claims

Claims

1. A concealed fastening device for long metal sheets, characterized in that it comprises a first connecting sheet (1), a second connecting sheet (2), a snap clasp (3), a first snap bar (4) and snap grooves (6), a second connecting sheet (2) is provided on one side of the first connecting sheet (1), the snap clasp (3) is provided between the upper part of one end of the first connecting sheet (1) and the upper part of one end of the second connecting sheet (2), the snap grooves (6) are provided on the surfaces of the upper part and the lower part of the snap clasp (3), the first snap bar (4) and a second snap bar (5) are arranged inside the snap groove (6),and the first interlocking bar (4) and the second interlocking bar (5) are respectively provided at the surfaces of two ends of the first connecting sheet (1) and the second connecting sheet (2).,

2. A hidden fixing device for long metal sheets according to claim 1, characterized in that, the first connecting sheet (1) and the second connecting sheet (2) are inclined in the middle, the first connecting sheet (1) and the second connecting sheet (2) are bent at both ends, and a bending angle between the bent ends of the first connecting sheet (1) and the second connecting sheet (2) and the horizontal plane is 22 degrees.

3. A concealed fastening device for long metal sheets according to claim 1, characterized in that, the interlocking grooves (6) are two in number, the two interlocking grooves (6) each have a smooth inner surface, the inner wall of each of the interlocking grooves (6) is in sliding contact with the surfaces of the first interlocking bar (4) and the second interlocking bar (5).

4. A concealed fastening device for long metal sheets according to claim 1, characterized in that the cross-sectional shape of the first snap bar (4) corresponds to the cross-sectional shape of the second snap bar (5), the upper part of the first snap bar (4) is flat, and protruding structures are provided on either side of the first interlocking bar (4), and the upper part of each of the protruding structures provided on either side of the first interlocking bar (4) has a slope and the slope angle is 45 degrees.

5. A concealed fastening device for long metal sheets according to claim 1, characterized in that the cross-sectional shape of each of the first engagement bar (4) and the second engagement bar (5) corresponds to the inner shape of the engagement groove (6), and the first engagement bar (4) and the second engagement bar (5) are engaged inside the engagement groove (6) by sliding fit.

6. A hidden fastening device for long metal sheets according to claim 1, characterized in that, both sides of the snap clasp (3) are smooth and flat planes, both sides of the snap clasp (3) are respectively aligned with one end of the first connecting sheet (1) and with one end of the second connecting sheet (2), the first connecting sheet (1) and the second connecting sheet (2) press closely against the surface of the snap clasp (3), the distance between both ends of the first connecting sheet (1) and the second connecting sheet (2) is 112.5 mm, and the thickness of the first connecting sheet (1) and the second connecting sheet (2) is 1.5 mm.

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