A disc-lock type cross-bridge connection structure and its connection method

Abstract

This invention discloses a disc-lock type cross-bracing frame connection structure and its usage, including the connection of upper and lower uprights and the connection of crossbars to nodes. The upper and lower uprights are assembled using elongated mounting slots that match in size and internal / external position and are 90° apart horizontally, and then fixed using connecting and fixing pads, connecting and fixing screws, and limiting sleeves. The connection of the crossbars to nodes is achieved by inserting the mounting rod (24) at one end of the connecting sleeve (7) into the connecting hole of the connecting pad, and inserting the other end into the perforated crossbar (8). The connecting sleeve and the perforated crossbar are connected by axial matching between the limiting groove and the limiting block at the fitting part, and radial fixing by the limiting device (9). This invention achieves convenient connection between the upper and lower uprights and crossbars, allows for standardized construction of cross-bracing frames, requires connecting pads only in the direction where crossbars need to be connected, and enables crossbar connection even when adjacent nodes are not horizontal or the spacing between uprights is inconsistent.

Description

Technical Field

[0001] This invention patent relates to the field of scaffolding technology, and more specifically to a disc-lock type cross-frame connection structure. Background Technology

[0002] Scaffolding is a commonly used support structure in building and power engineering, providing a support platform for workers and materials to carry out various tasks on the construction site. It is a temporary structure, usually erected outside or inside a building, providing workers with a safe and stable working platform, a support system for facilitating material transportation, and adapting to the crossing requirements of high-voltage cables, transmission towers, and other equipment in power engineering.

[0003] Disc-lock scaffolding is a common building support structure characterized by its disc-lock design at the connection points. By using disc-lock connectors at the joints of uprights and horizontal bars, a robust support system is formed. This type of scaffolding typically consists of uprights, horizontal bars, horizontal supports, longitudinal supports, diagonal braces, and connectors, forming a stable three-dimensional support network. Compared to some lightweight scaffolding, disc-lock scaffolding components are usually quite heavy, making it less suitable for construction sites requiring frequent relocation. While relatively simple, the erection of large-scale projects still requires experienced professionals to ensure structural safety. Traditional disc-lock scaffolding is heavy and expensive, and its practicality needs improvement. Therefore, a more convenient disc-lock cross-frame connection structure is proposed to address these issues. Summary of the Invention

[0004] The purpose of this invention patent is to provide a disc-lock type cross-bracing connection structure and its connection method, which can realize convenient connection between the upper and lower uprights and horizontal bars, standardize the construction of scaffolding, and set the connecting pad only in the direction where the horizontal bar needs to be connected. At the same time, it can realize the connection of horizontal bars when adjacent nodes are not horizontal or the spacing between uprights is inconsistent.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A modular cross-bracing connection structure that facilitates connection includes a connection method for the upper and lower uprights and a connection method for the crossbars and nodes.

[0007] The connection method of the upper and lower uprights includes a lower upright (1), an upper upright (2), a limiting sleeve (3), a connecting pad (4-1) and a fixing pad (4-2), a connecting screw (5-1) and a fixing screw (5-2), and a nut (6). The connection method of the crossbar and the node includes a connecting sleeve (7), a perforated crossbar (8), and a limiter (9).

[0008] The upper end of the lower support rod (1) is separated by an end plate (10). The upper end of the lower support rod (1) is provided with four identical elongated mounting grooves I (11). The lowest end of the mounting groove is a semi-circular fixing groove I (12). A mounting groove I (13) is provided near the center of the lower support rod, and a support block I (14) is provided away from the center of the lower support rod.

[0009] The lower end of the upper pole (2) has four identical elongated mounting grooves II (15), the lowest end of which is a semi-circular fixing groove II (16), and a mounting groove II (17) is provided away from the center of the upper pole, and a support block II (18) is provided near the center of the lower pole. The limiting sleeve (3) is a cylinder with openings at both ends.

[0010] The connecting pad (4-1) has a screw mounting hole (19) and two connecting sleeve connecting holes (20), the fixing pad (4-2) has a screw mounting hole (21), and the connecting screws (5-1 and 5-2) have a screw (22) with a threaded end and a fixing plate (23) at the other end.

[0011] The connecting sleeve (7) is provided with two mounting rods (24), and the two mounting rods of the connecting sleeve are provided with reinforcing plates (25) on both sides. The connecting sleeve is provided with a cylindrical sleeve (26), and the cylindrical sleeve is provided with one or more limit blocks (27) inside, and a limit hole (28) is provided on the top. The perforated crossbar (8) is provided with three limit grooves (29) with one side open and one closed limit groove (30). The limit groove and the limit block are the same size to ensure the stability of the scaffold structure.

[0012] Furthermore, both the upper and lower uprights are provided with four elongated mounting slots (11 and 15) at both ends. One end is the lower upright connecting node, and the other end is the upper upright connecting node. The cross section at the end of the lower upright (1) is narrowed inward, while the cross section at the end of the upper upright (2) remains unchanged. The elongated mounting slots of the upper and lower uprights are 90° apart and their positions and dimensions match each other, leaving four mounting holes of equal size.

[0013] Furthermore, the inner side of the semi-circular fixing groove I (12) of the lower column (1) is provided with a mounting groove (13) for fixing connecting screws (5-1 and 5-2), and the inner side of the semi-circular fixing groove II (16) of the upper column (2) is provided with a mounting groove II (17) for fixing connecting pads (4-1) and fixing pads (4-2). During installation, the movement of connecting screws (5-1 and 5-2) is restricted by the limiting sleeve (3).

[0014] Furthermore, the connecting sleeve (7) is provided with two mounting rods (24). The mounting rods (24) are installed by passing through the two connecting sleeve connecting holes (20) of the connecting pad (4-1). The two mounting rods of the connecting sleeve are provided with reinforcing plates (25) on both sides and a cylindrical sleeve (26) on the other side. The cylindrical sleeve is provided with one or more limit blocks (27) inside and a limit hole (28) on the top to ensure the stable connection of the connecting crossbar.

[0015] Furthermore, the perforated crossbar (8) is provided with one or more limiting grooves (29) with one side opening and a closed limiting groove (30), and the limiting groove and the limiting block of the connecting sleeve (7) have the same position size.

[0016] Beneficial effects

[0017] In the above technical solution, the disc-lock type cross-bridge connection structure provided by this invention patent has the following beneficial effects:

[0018] 1. The present invention provides a convenient connecting disc-lock type cross-frame connection structure. The upper and lower uprights can be connected by freely selecting the combination of connecting pads (4-1) and fixing pads (4-2) to build uprights at different positions in the scaffolding, thereby improving the utilization rate of materials, reducing the structural self-weight of the disc-lock type scaffolding, saving costs, and promoting a simpler and more standardized scaffolding construction.

[0019] 2. The connection of the connecting sleeve (7) is achieved by connecting the two connecting sleeve connecting holes (20) on the connecting pad (4-1), which can realize the connection between the crossbar and the node and take into account the inconvenience of installation caused by certain installation errors.

[0020] 3. The connection between the open horizontal bar (8) and the connecting sleeve (7) is achieved through the cylindrical sleeve (26), the limiting block (27), the limiting hole (28), the opening limiting groove (29), and the closed limiting groove (30). By matching the position and size of the limiting groove and the limiting block, the rotation of the horizontal bar can be constrained and the length of the horizontal bar inserted into the connecting sleeve (7) can be easily adjusted to quickly install the scaffold.

[0021] 4. The connecting sleeve connecting hole (20) is based on the commercial software HYPERWORKS platform. It utilizes the principle of topology optimization, takes the minimization of the maximum principal stress of the node material as the objective function, the volume fraction ratio as the constraint function, the continuous structure variable density method as the optimization algorithm, and the element "element density" as the design variable through iterative optimization. Attached Figure Description

[0022] Figure 1 This is an exploded view of the scaffolding connection node structure assembly of the present invention;

[0023] Figure 2 This is a schematic diagram of the lower support rod 1 structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the upper support rod 2 structure of the present invention;

[0025] Among them: (a) a plan view, (b) a three-dimensional solid view;

[0026] Figure 4 This is a schematic diagram of the connecting pad 4-1 structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the fixing pad 4-2 of the present invention;

[0028] Figure 6 This is a schematic diagram of the connecting screw 5-1 of the present invention;

[0029] Figure 7 This is a schematic diagram of the connecting sleeve 7 of the present invention;

[0030] Wherein: (a) left view, (b) left view;

[0031] Figure 8 This is a schematic diagram of the perforated crossbar 8 structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the connection between the upper and lower uprights;

[0033] Figure 10 This is an assembly diagram of the scaffolding connection node structure.

[0034] Explanation of reference numerals in the attached drawings: 1-Lower upright, 2-Upper upright, 3-Limiting sleeve, 4-1-Connecting pad, 4-2-Fixing pad, 5-1-Connecting screw, 5-2-Fixing screw, 6-Nut, 7-Connecting sleeve, 8-Opening crossbar, 9-Limiter, 10-End plate; 11-Long strip mounting groove I, 12-Semi-circular fixing groove I, 13-Mounting groove I, 14-Support block I; 15-Long strip mounting groove II, 16-Semi-circular fixing groove II, 17-Mounting groove II, 18-Support block II, 19-Screw mounting hole, 20-Connecting sleeve connecting hole, 21-Screw mounting hole, 22-Screw, 23-Fixing plate, 24-Mounting rod, 25-Reinforcing plate, 26-Cylindrical sleeve, 27-Limiting block, 28-Limiting hole, 29-Open limiting groove, 30-Closed limiting groove. Detailed Implementation

[0035] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.

[0036] Example 1

[0037] like Figure 1 As shown, a modular interlocking frame connection structure for easy connection includes the connection of upper and lower uprights and the connection of crossbars to nodes, such as... Figure 9 As shown, the connection between the upper and lower uprights is achieved using a limiting sleeve 3, a connecting pad 4-1 and a fixing pad 4-2, a connecting screw 5-1 and a fixing screw 5-2, and a nut 6. The connection between the crossbar and the node is achieved using a connecting sleeve 7, a perforated crossbar 8, and a limiter 9.

[0038] Figure 2 This is a schematic diagram of the lower support rod 1 structure of the present invention, with reference to... Figure 2 As shown, the upper end of the lower support rod 1 is separated by the end plate 10. The upper end of the lower support rod 1 is evenly provided with 4 identical elongated mounting grooves I (11). The lowermost end of the mounting groove I is a semi-circular fixing groove I (12), and a mounting groove I (13) is provided near the center of the lower support rod, and a support block I (14) is provided away from the center of the lower support rod. The mounting groove I is used to fix the connecting screw and the fixing screw.

[0039] Figure 3 This is a schematic diagram of the structure of the upper pole 2 of the present invention, for reference. Figure 3 As shown, the lower end of the upper upright (2) is uniformly provided with four identical elongated mounting grooves II (15), the lowest end of which is a semi-circular fixing groove II (16), and a mounting recess II (17) is provided away from the center of the upper upright, while a support block II (18) is provided near the center of the upper upright. The recess II (17) is used to fix the connecting pad 4-1 and the fixing pad 4-2. During installation, the movement of the connecting screws (5-1 and 5-2) is restricted by the limiting sleeve 3. The elongated mounting grooves I and II of the upper and lower uprights are 90° apart from each other, and their positions and dimensions match each other.

[0040] The limiting sleeve 3 is a cylinder open at both ends. The assembly of the upper and lower uprights is facilitated by the guidance of the elongated mounting grooves I and II. After installation, they are in an inner and outer fitting state and are fixed by the limiting sleeve 3.

[0041] Figure 4 This is a schematic diagram of the connecting pad 4-1 of the present invention, with reference to... Figure 4 As shown, the connecting pad 4-1 has a screw mounting hole 19 on its side and two connecting sleeve connecting holes 20 in the vertical direction; wherein, the screw mounting hole 19 is used to match the connecting screw 5-1, and the connecting sleeve connecting hole 20 is used to match the mounting rod 24 at the end of the connecting sleeve 7. In order to connect the connecting sleeve 7 and the upper and lower upright connecting nodes, the mounting rod 24 at the end of the connecting sleeve 7 needs to be inserted into the connecting sleeve connecting hole 20 of the connecting pad 4-1 from top to bottom.

[0042] The fixing pad 4-2 is provided with a screw mounting hole 21, and the connecting screw 5-1 is provided with a screw 22 with threads at one end and a fixing plate 23 at the other end. During installation, the connecting pad 4-1, connecting screw 5-1, and nut 6 are used together; the fixing pad 4-2 and fixing screw 5-2 are used together. The connection of the upper and lower uprights can be made by selecting either the connecting pad 4-1 or the fixing pad 4-2 for installation, depending on whether the node is connected to a crossbar. The limiting sleeve 3 restricts the movement of the connecting screw 5-1 and the fixing screw 5-2 to ensure ease of installation.

[0043] During assembly, in order to install the upper and lower uprights, first select the connecting pad 4-1 and fixing pad 4-2 required for the connection node. Then, install the four screws into the mounting groove 13 of the lower upright 1. Then, insert the limiting sleeve 3 into the lower upright to restrict the movement of the screws. Then, install the upper upright 2 along the long strip mounting groove I (11) and the long strip mounting groove II (15). Finally, tighten the connecting pad 4-1 and fixing pad 4-2 corresponding to the screws with nuts.

[0044] Figure 7 This is a schematic diagram of the connecting sleeve 7 of the present invention, with reference to... Figure 7 As shown, the connecting sleeve 7 includes a cylindrical sleeve 26, which has three limiting blocks 27 inside and a through limiting hole 28 in the middle of the sleeve body; the bottom of the sleeve has two mounting rods 24, and the two sides of the mounting rods 24 have reinforcing plates 25, which can realize the firm connection between the crossbar and the node and can realize a certain degree of rotation.

[0045] Figure 8 This is a schematic diagram of the perforated crossbar 8 structure of the present invention, for reference. Figure 8 As shown, the perforated crossbar 8 has three limiting grooves 29 with openings on one side and one closed limiting groove 30. The limiting grooves and limiting blocks 27 are the same size. In use, the perforated crossbar 8 is inserted into the cylindrical sleeve 26. The three limiting blocks 27 inside the cylindrical sleeve 26 correspond one-to-one with the limiting grooves 29 of the perforated crossbar 8, constraining the rotation of the crossbar around its central axis. The limiting holes 28, the closed limiting groove 30, and the limiters 9 are in the same position, allowing the crossbar to move within the limiting groove 30, thus eliminating crossbar installation errors.

[0046] To facilitate the installation of the perforated crossbar 8 and the connecting sleeve 7, the limiting groove 29 of the perforated crossbar is first installed into the connecting sleeve along the limiting block 27. Then, the limiter 9 is passed through the limiting hole 28 of the connecting sleeve and the closed limiting groove 30 of the perforated crossbar to complete the installation. This connection joint allows the perforated crossbar a certain degree of rotation and axial movement, thus mitigating the impact of installation errors and simplifying construction.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A disc-lock type cross-bridge connection structure, characterized in that, The connection structure of the upper and lower uprights and the connection structure of the crossbar and the node; wherein, the connection structure of the upper and lower uprights includes the lower upright (1), the upper upright (2), the limiting sleeve (3), the connecting pad (4-1), the fixing pad (4-2), the connecting screw (5-1), the fixing screw (5-2) and the nut (6). The upper end of the lower pole (1) is provided with four long strip mounting grooves I (11) evenly spaced at 90° in the circumferential direction. The bottom end of each long strip mounting groove I (11) is provided with a semi-circular fixing groove I (12), and a mounting groove I (13) is provided near the center of the lower pole. The lower end of the upper pole (2) is provided with four long strip mounting grooves II (15) evenly spaced at 90° in the circumferential direction. The bottom end of each long strip mounting groove II (15) is provided with a semi-circular fixing groove II (16) and a mounting groove II (17) is provided away from the center of the upper pole. One end of the connecting screw (5-1) and the fixing screw (5-2) is threaded, and the other end is fixed; the connecting pad (4-1) is provided with a screw mounting hole (19) and two connecting sleeve connecting holes (20); the fixing pad (4-2) is provided with a screw mounting hole (21); During connection, the fixing plates of the connecting screw (5-1) and the fixing screw (5-2) are respectively installed in the mounting groove I (13) of the lower upright (1). The limiting sleeve (3) is inserted into the lower upright (1) to restrict the movement of the screw. The upper upright (2) is fitted and spliced ​​with the elongated mounting groove II (15) and the elongated mounting groove I (11) of the lower upright (1). Then the connecting pad (4-1) and the fixing pad (4-2) are respectively put on the corresponding screw and tightened with the nut (6). The connection structure between the crossbar and the node includes a connecting sleeve (7), a perforated crossbar (8), and a limiter (9). The connecting sleeve (7) has two mounting rods (24) at one end and a cylindrical sleeve (26) at the other end. The inner wall of the cylindrical sleeve (26) has one or more limit blocks (27), and the body of the sleeve has a limit hole (28). The perforated crossbar (8) has one or more limit grooves (29) with one side open and one closed limit groove (30). When connecting, the mounting rods (24) of the connecting sleeve (7) are inserted from top to bottom into the connecting sleeve connecting hole (20) of the connecting pad (4-1), and the perforated crossbar (8) is inserted into the cylindrical sleeve (26) so that the limit block (27) cooperates with the open limit groove (29). Then the limiter (9) is fixed by passing through the limit hole (28) and the closed limit groove (30).

2. The disc-lock type cross-bridge connection structure according to claim 1, characterized in that, The upper end of the upper pole and the lower end of the lower pole are each provided with four long strip-shaped mounting slots. The four long strip-shaped mounting slots are evenly distributed at 90° intervals in the circumferential direction. The cross section at the end of the lower pole (1) shrinks inward, while the cross section at the end of the upper pole (2) remains unchanged. When the upper and lower poles are assembled, they are fitted together inside and outside through the long strip-shaped mounting slots.

3. The disc-lock type cross-bridge connection structure according to claim 2, characterized in that, The upper end of the lower support rod (1) is separated by an end plate (10). The upper end of the lower support rod (1) is provided with four identical elongated mounting grooves I (11). The lowest end of the mounting groove is a semi-circular fixing groove (12). A mounting groove I (13) is provided near the center of the lower support rod, and a support block I (14) is provided away from the center of the lower support rod. The mounting groove I is used to fix the connecting screw (5-1) and the fixing screw (5-2). During installation, the movement of the screw is restricted by the limiting sleeve (3). The lower end of the upper pole (2) has four identical elongated mounting grooves II (15), the lowest end of which is a semi-circular fixing groove II (16), and a mounting groove II (17) is provided away from the center of the upper pole, and a support block II (18) is provided near the center of the upper pole.

4. The disc-lock type cross-bridge connection structure according to claim 1, characterized in that, The connecting sleeve (7) includes a cylindrical sleeve (26), and a through-hole (28) is provided in the middle of the sleeve body; two mounting rods (24) are provided at the bottom of the sleeve, and reinforcing plates are provided on both sides of the mounting rods, which can realize the firm connection between the crossbar and the node and can realize rotation.

5. A disc-lock type cross-bracing connection structure according to claim 1 or 4, characterized in that, The opening limiting groove (29) and the limiting block (27) are the same size. When in use, the perforated crossbar (8) is inserted into the cylindrical sleeve (26). The limiting block (27) inside the cylindrical sleeve corresponds one-to-one with the opening limiting groove (29) of the perforated crossbar, constraining the rotation of the crossbar around the central axis. The limiting hole (28), the closed limiting groove (30) and the limiter (9) are in the same position, so that the crossbar moves in the closed limiting groove (30) to eliminate the crossbar installation error.

6. The disc-lock type cross-bridge connection structure according to claim 1, characterized in that, The connecting pad (4-1) has a screw mounting hole on its side and two connecting sleeve connecting holes (20) in the vertical direction; the screw mounting hole is used to match the connecting screw (5-1) and the connecting sleeve connecting hole is used to match the mounting rod (24) at the end of the connecting sleeve. In order to realize the connection between the connecting sleeve and the upper and lower upright connecting nodes, the mounting rod at the end of the connecting sleeve needs to be inserted into the connecting sleeve connecting hole of the connecting pad from top to bottom.

7. The connection method of the disc-lock type cross-bridge connection structure according to claim 1, characterized in that, The steps are as follows: (1). Install the upper and lower uprights to form the upper and lower upright connection nodes: First, select the connecting pad (4-1) and fixing pad (4-2) required for the connection node. Then, install the four screws into the mounting groove I (13) of the lower upright (1). Then, insert the limiting sleeve (3) into the lower upright to restrict the movement of the screws. Then, install the upper upright (2) along the long strip mounting groove I (11) and the long strip mounting groove II (15). Finally, tighten the connecting pad (4-1) and fixing pad (4-2) corresponding to the screws with nuts. (2). Connect the connecting sleeve (7) and the upper and lower upright connecting nodes: Insert the mounting rod (24) at the end of the connecting sleeve (7) from top to bottom into the connecting sleeve connecting hole (20) of the connecting pad plate (4-1); (3). Installation of the perforated crossbar (8) and the connecting sleeve (7): Install the limiting groove (29) of the opening of the perforated crossbar into the connecting sleeve along the limiting block (27). Then, pass the limiter (9) through the limiting hole (28) of the connecting sleeve and the closed limiting groove (30) of the perforated crossbar to complete the installation. This connection node allows the perforated crossbar to have rotational and axial movement capabilities.

8. The connection method of the disc-lock type cross-bridge connection structure according to claim 7, characterized in that: The connection between the upper and lower uprights can be made by selecting either a connecting pad (4-1) or a fixing pad (4-2) depending on whether the node is connected to a horizontal bar.

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