A connecting device for an outer frame protection steel sheet

Abstract

A kind of connecting device of outer frame protective steel sheet net, including connecting cross bar, connecting piece, U type fastener and bracket, the connecting cross bar is connected with bracket by connecting piece, the bracket lower end forms the first slot opening towards connecting cross bar, the first slot is arranged with lower end steel sheet net one side, the bracket middle end forms the connecting part connected with connecting piece, the connecting part is set up for the U type fastener for the lower end steel sheet net one side limit on shelf, the connecting cross bar is also set for connecting outer frame steel pipe steel pipe fastener, the utility model compared with prior art, not involve bolt connection, so that the installation and disassembly between steel sheet net and outer frame steel pipe are more convenient, secondly, connecting cross bar, connecting piece, U type fastener and bracket etc. Component does not involve cutting, so that the strength of connecting place is better, and stability is also better.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a connection device for external scaffold protective steel mesh. Background Technology

[0002] Traditional steel pipe scaffolding external protection commonly uses close-mesh safety nets, which have the advantages of low cost, convenient erection, and almost no increase in the load on the scaffolding. However, they also have disadvantages: insufficient strength, easily punctured by construction debris, leading to protection failure; frequent repairs or replacements are required after damage, increasing labor and material costs and delaying the construction period; and as disposable items, they cannot be reused, resulting in resource waste.

[0003] Driven by new technologies, protective steel mesh, formed by stamping and stretching metal sheets, has gradually replaced dense-mesh safety nets due to its advantages such as high strength, lightweight, and corrosion resistance. It is rapidly penetrating fields such as construction, transportation, municipal engineering, and new energy, achieving large-scale application. Protective steel mesh is generally connected to scaffolding stably using connectors. Most of the aforementioned connectors adopt the type described in application number 202120657408.1, entitled "A Connector for Connecting Perforated Steel Mesh to Scaffolding." This connector includes a crossbar and a bracket. One end of the crossbar is the scaffolding connection end, and the other end is the steel mesh connection end. The scaffolding connection end is connected to the scaffolding crossbar via a right-angle coupler. The crossbar has an axially oriented slot on the steel mesh connection end. The bracket includes a connecting plate, a horizontal slot, and a vertical slot. One end of the connecting plate is inserted into the slot and fixed therein by bolts. The other end of the connecting plate extends out of the slot. A vertical slot is provided on the top surface of the extended end of the connecting plate, and a horizontal slot is provided on the bottom surface. The opening of the vertical slot faces upward and matches the bottom width of the perforated steel mesh. The opening of the horizontal slot faces the steel mesh connection end and matches the top thickness of the perforated steel mesh.

[0004] The aforementioned connectors can connect the protective steel mesh to the scaffolding, but the following problems still exist: First, the bracket needs to be connected to the protective steel mesh first, and then inserted into the slot at the connection end of the steel mesh, making the entire operation process quite complicated; Second, the bracket and the connection end of the steel mesh require bolts for connection, making the installation and disassembly of the protective steel mesh and the scaffolding inconvenient; Third, the steel mesh connection end has a slot, and the steel mesh connection end is cut into two parts, resulting in poor rigidity and stability at the connection point; Fourth, the bolt hole positions and slot positions on the steel mesh connection end need to be precisely calculated and processed, and even a slight error will result in the protective steel mesh and the scaffolding failing to connect.

[0005] Therefore, there is an urgent need for a connection device for the protective steel mesh of the scaffold, which can facilitate the quick connection and disassembly of the protective steel mesh and the scaffold, and the connection has high strength. Utility Model Content

[0006] The present invention aims to overcome the defects in the prior art and provide a connection device for the protective steel mesh of the scaffold, which facilitates the quick connection and disassembly of the protective steel mesh and the scaffold, and the connection has high strength.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a connecting device for external scaffold protective steel mesh, comprising a connecting crossbar, a connector, a U-shaped fastener, and a bracket. The connecting crossbar is connected to the bracket via the connector. The lower end of the bracket forms a first groove with an opening facing the connecting crossbar. One side of the lower steel mesh is disposed in the first groove. The middle end of the bracket forms a connecting part that connects to the connector. A U-shaped fastener for limiting one side of the lower steel mesh is mounted on the connecting part. A steel pipe fastener for connecting the external scaffold steel pipe is also sleeved on the connecting crossbar.

[0008] As a preferred embodiment of the present invention, the top of the bracket forms a second slot for housing the upper steel mesh on one side, and the length of the second slot is greater than the length of the connecting part.

[0009] In a preferred embodiment of this utility model, the length of the U-shaped fastener is greater than the length of the connecting part, and the length of the U-shaped fastener is less than the length of the second slot.

[0010] As a preferred embodiment of this utility model, the thickness of the U-shaped fastener is between 2-4mm and the width is between 18-22mm.

[0011] In a preferred embodiment of this utility model, the width and height of the first slot and the second slot are the same.

[0012] In a preferred embodiment of this utility model, the connecting crossbar is a steel pipe, and the length of the connecting crossbar is between 300-500mm.

[0013] In a preferred embodiment of the present invention, the connector includes a first connecting segment and a second connecting segment, wherein the first connecting segment is tangent to the outer wall of the connecting crossbar, and the second connecting segment abuts against the side of the connecting crossbar facing the bracket.

[0014] In a preferred embodiment of this utility model, the length of the second connecting segment is the same as the diameter of the connecting crossbar.

[0015] In a preferred embodiment of this utility model, the connecting part and the first connecting segment are arranged in parallel.

[0016] In a preferred embodiment of this utility model, the connecting crossbar, the connecting piece, and the bracket are welded together.

[0017] The beneficial effects of this utility model are: 1. Compared with the prior art, this utility model does not involve bolt connections, making the installation and disassembly of the steel mesh and the outer frame steel pipes more convenient. Secondly, the connecting crossbars, connectors, U-shaped fasteners and brackets do not involve cutting, resulting in better strength and stability at the connection.

[0018] 2. This utility model uses a U-shaped fastener with a length between the connecting part and the second slot to limit and fix the steel mesh. Compared with bolt fixing, it is more convenient and speeds up the installation and disassembly process.

[0019] 3. This utility model reduces the need for bolt fixing and auxiliary tools used for bolt fixing in the connection between steel mesh and external steel pipe, thus reducing construction difficulty and requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of this utility model; Figure 3 This is a utility model Figure 2 Top view; The attached figures are labeled as follows: 1. Connecting crossbar; 2. Connector; 3. U-shaped fastener; 4. Bracket; 5. Steel pipe fastener; 6. Steel mesh; 7. Scaffolding steel pipe; 21. First connecting section; 22. Second connecting section; 41. First slot; 42. Connecting part; 43. Second slot. Detailed Implementation

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-3 As shown, a connecting device for an external scaffold protective steel mesh includes a connecting crossbar 1, a connector 2, a U-shaped fastener 3, and a bracket 4. The connecting crossbar 1 is connected to the bracket 4 via the connector 2. The lower end of the bracket 4 forms a first slot 41 with an opening facing the connecting crossbar 1. One side of the lower steel mesh 6 is disposed in the first slot 41. The middle end of the bracket 4 forms a connecting part 42 that connects to the connector 2. The connecting part 42 is equipped with a U-shaped fastener 3 for limiting one side of the lower steel mesh 6. A steel pipe fastener 5 for connecting the external scaffold steel pipe 7 is also sleeved on the connecting crossbar 1.

[0023] The connecting crossbar 1, the connecting piece 2, and the bracket 4 are welded together as one unit.

[0024] The connecting crossbar 1 and the outer scaffold steel pipe 7 have the same specifications, ensuring the connection strength and applicability of the connecting crossbar 1.

[0025] The steel pipe fastener 5 mentioned above is a general-purpose component and is existing technology, so it will not be described separately.

[0026] Specifically, the connecting crossbar 1 is connected to the outer scaffold steel pipe 7 (the outer scaffold steel pipe 7 is a component in the scaffold) through the steel pipe coupler 5. The top side of the lower end steel plate mesh 6 is set in the first slot 41 and is fixed in the bracket 4 by the U-shaped fastener 3 sleeved on the outside of the connecting part 42. Furthermore, since the connecting crossbar 1, the connecting piece 2, and the bracket 4 are integrated into a single connecting structure, the outer frame steel pipe 7 and the lower end steel mesh 6 are connected accordingly.

[0027] Compared with the prior art, this utility model does not involve bolt connections, making the installation and disassembly between the steel mesh 6 and the outer frame steel pipe 7 more convenient. Secondly, the connecting crossbar 1, connector 2, U-shaped fastener 3 and bracket 4 do not involve cutting, resulting in better strength and stability at the connection.

[0028] The top of the bracket 4 forms a second slot 43 for housing the upper steel mesh 6 on one side, and the length of the second slot 43 is greater than the length of the connecting part 42.

[0029] The length of the U-shaped fastener 3 is greater than the length of the connecting part 42, while the length of the U-shaped fastener 3 is less than the length of the second slot 43.

[0030] The U-shaped fastener has a thickness of 2-4mm and a width of 18-22mm. Its small size makes it easy to process and also reduces the weight of the overall device, making it easier to install.

[0031] The width and height of the first slot 41 and the second slot 43 are the same, and the consistent dimensions facilitate actual processing.

[0032] Specifically, the bottom side of the upper steel plate mesh 6 is set in the second slot 43. Based on the integrated connection structure of the connecting crossbar 1, the connecting piece 2 and the bracket 4, the connection between the outer frame steel pipe 7 and the lower and upper steel plate mesh 6 is realized. Furthermore, since the length of the U-shaped fastener 3 is greater than that of the connecting part 42, but less than that of the first slot 41 and the second slot 43, the U-shaped fastener 3 can be fitted onto the connecting part 42 without moving. The side of the U-shaped fastener 3 can completely abut against the side of the lower steel mesh 6, preventing the lower steel mesh 6 from moving and strengthening the stable connection between the steel mesh 6 and the outer frame steel pipe 7.

[0033] This utility model uses a U-shaped fastener 3 with a length between the connecting part 42 and the second slot 43 to limit and fix the steel mesh 6. Compared with bolt fixing, it is more convenient and speeds up the installation and disassembly process.

[0034] The connecting crossbar 1 is a steel pipe, and the length of the connecting crossbar 1 is between 300-500mm.

[0035] The connector 2 includes a first connecting section 21 and a second connecting section 22. The first connecting section 21 is tangent to the outer wall of the connecting crossbar 1, and the second connecting section 22 abuts against the side of the connecting crossbar 1 facing the bracket 4. The connector 2 and the connecting crossbar 1 are welded together.

[0036] The length, width, and thickness of the second connecting section 22 are the same as the diameter of the connecting crossbar 1.

[0037] The connecting part 42 and the first connecting segment 21 are arranged in parallel.

[0038] Specifically, the first connecting segment 21 and the second connecting segment 22 ensure that the connector 2 can be completely covered by the cross section of the connecting crossbar 1 and form an effective support surface and connection surface; Furthermore, the parallel arrangement between the connecting part 42 and the first connecting section 21 defines the connection position between the connector 2 and the bracket 4, enabling quick connection between the connecting crossbar 1, the connector 2, and the bracket 4.

[0039] Specifically, a connection device for an external protective steel mesh frame is implemented: The external scaffold steel pipe 7 is fixed to the connecting crossbar 1 by steel pipe fasteners 5. One side of the top of the lower steel mesh 6 is fastened into the first slot 41. The U-shaped fastener 3 is fitted onto the connecting part 42 to limit and fix the lower steel mesh 6 in the first slot 41. The bottom of the upper steel mesh 6 enters the second slot 43, realizing the connection between the external scaffold steel pipe 7, the lower steel mesh 6 and the upper steel mesh 6.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0041] Although this document uses numerous reference numerals from the figures, such as connecting crossbar 1, connector 2, U-shaped fastener 3, bracket 4, steel pipe fastener 5, steel mesh 6, external scaffold steel pipe 7, first connecting section 21, second connecting section 22, first slot 41, connecting part 42, and second slot 43, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A connecting device for an external protective steel mesh frame, characterized in that: The system includes a connecting crossbar (1), a connector (2), a U-shaped fastener (3), and a bracket (4). The connecting crossbar (1) is connected to the bracket (4) through the connector (2). The lower end of the bracket (4) forms a first slot (41) with an opening facing the connecting crossbar (1). The lower end of the steel plate mesh (6) is provided in the first slot (41). The middle end of the bracket (4) forms a connecting part (42) that is connected to the connector (2). The connecting part (42) is equipped with a U-shaped fastener (3) for limiting the lower end of the steel plate mesh (6). The connecting crossbar (1) is also fitted with a steel pipe fastener (5) for connecting the outer frame steel pipe (7).

2. The connecting device for an external protective steel mesh according to claim 1, characterized in that: The bracket (4) has a second slot (43) formed on the top for housing the upper steel mesh (6) on one side, and the length of the second slot (43) is greater than the length of the connecting part (42).

3. The connecting device for an external protective steel mesh according to claim 2, characterized in that: The length of the U-shaped fastener (3) is greater than the length of the connecting part (42), and the length of the U-shaped fastener (3) is less than the length of the second slot (43).

4. The connecting device for an external protective steel mesh according to claim 3, characterized in that: The thickness of the U-shaped fastener (3) is between 2-4 mm, and the width is between 18-22 mm.

5. The connecting device for an external protective steel mesh according to claim 2, characterized in that: The width and height of the first slot (41) and the second slot (43) are the same.

6. The connecting device for an external protective steel mesh according to claim 1, characterized in that: The connecting crossbar (1) is a steel pipe, and the length of the connecting crossbar (1) is between 300-500mm.

7. The connecting device for an external protective steel mesh according to claim 2, characterized in that: The connector (2) includes a first connecting section (21) and a second connecting section (22). The first connecting section (21) is tangent to the outer wall of the connecting crossbar (1), and the second connecting section (22) abuts against the side of the connecting crossbar (1) facing the bracket (4).

8. The connecting device for an external protective steel mesh according to claim 7, characterized in that: The length of the second connecting segment (22) is the same as the diameter of the connecting crossbar (1).

9. The connecting device for an external protective steel mesh according to claim 8, characterized in that: The connecting part (42) and the first connecting segment (21) are arranged in parallel.

10. The connecting device for an external protective steel mesh according to claim 1, characterized in that: The connecting crossbar (1), the connecting piece (2), and the bracket (4) are welded together.

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