Quick and safe fixing device for scaffold steel pipe

Abstract

The utility model discloses a scaffold steel pipe fast safe fixing device relates to the field of building engineering technology, the utility model discloses a vertical rod and cross bar, and the cross bar top is passed through and has the latch, and the latch top is connected with the expansion board, and the cross bar top one side is connected with the top frame, and the top frame bottom both sides all are fixed with the reinforcing plate, the utility model discloses the setting of expansion board has effectively increased the hammering stress area of several times latch top, has reduced the construction personnel hammering deviation probability greatly, this not only reduces the invalid operation time, promotes the installation efficiency, also avoided the component deformation and coating damage caused by hammering vertical rod or disc, reduced the later maintenance cost, guaranteed the node connection accuracy simultaneously, strengthened the security of scaffold overall structure, convenient with the knock of latch, reduce the hammering deviation phenomenon to occur.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a quick and safe fixing device for scaffolding steel pipes. Background Technology

[0002] Steel scaffolding is an indispensable temporary support and working platform structure in construction engineering. With the high strength, high toughness and durability of steel, it is widely used in housing construction, bridge construction, municipal engineering and other scenarios.

[0003] The assembly method of steel scaffolding needs to be determined according to the structural form, load requirements, and construction scenario. Common types include coupler type, cup-lock type, and disc-lock type. Among them, disc-lock steel scaffolding has become one of the mainstream systems due to its advantages such as structural stability and efficient erection.

[0004] Despite the numerous advantages of disc-lock steel scaffolding, its pin-connection structure still presents operational challenges, hindering construction efficiency and safety. Specifically, the traditional pin top has a narrow, plate-like structure, resulting in a small hammering area. Workers must precisely align the pin top to secure it, and in practice, vibrations and other factors can easily cause hammer misalignment. This can range from simply hitting the wrong spot and rendering the work ineffective to striking the vertical pole or disc, causing component deformation and coating damage. This not only increases maintenance costs but may also affect the accuracy of the joint connections. Furthermore, disassembly requires hammering the bottom of the pin in the opposite direction to loosen it. Since the bottom area of ​​the pin is smaller than the top, it is even more prone to hammer misalignment, thus impacting assembly efficiency. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a quick and safe fixing device for scaffolding steel pipes to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick and safe fixing device for scaffolding steel pipes, comprising a vertical bar and a horizontal bar, wherein a pin is inserted through the top of the horizontal bar and an extension plate is connected to the top of the pin; a top frame is connected to one side of the top of the horizontal bar, and reinforcing plates are fixed to both sides of the bottom of the top frame.

[0007] By adopting the above technical solution, the hammering area at the top of the pin is increased by using the extension plate, and the leverage effect of the top frame is used to assist in the disassembly of the pin. At the same time, the reinforcing plate enhances the structural stability of the top frame. The three together solve the problems of easy hammering deviation and difficulty in applying force when installing and disassembling traditional pins, and improve the efficiency and safety of scaffold node connections.

[0008] Furthermore, a disc is fixed to the outer ring of the vertical rod, and an insertion hole is provided on one side of the top of the disc.

[0009] By adopting the above technical solution, the disc on the outer ring of the vertical bar provides an installation base for the insertion hole, and the insertion hole serves as the locking point for the pin, enabling the horizontal bar and the vertical bar to be rigidly connected through the pin, thus providing structural support for the stable fixing of the scaffolding nodes.

[0010] Furthermore, the sockets are provided in multiple ways, and the multiple sockets are distributed in a ring array.

[0011] By adopting the above technical solution, the multiple ring array of sockets can adapt to the installation requirements of multiple angles, meet the erection angle requirements of crossbars in diverse construction scenarios, and significantly improve the erection flexibility and applicability of scaffolding.

[0012] Furthermore, the pin is slidably connected to the crossbar, and the pin is detachably connected to the socket.

[0013] By adopting the above technical solution, the sliding connection between the pin and the crossbar enables the pin to move smoothly along the crossbar, making it easy to quickly align with the insertion hole; while the detachable connection between the pin and the insertion hole makes the assembly and disassembly of the crossbar and the vertical bar more convenient, reducing the operational difficulty for construction personnel.

[0014] Furthermore, one side of the pin is sloped.

[0015] By adopting the above technical solution, the ramp structure on one side of the pin can guide the pin to automatically calibrate its position when it is inserted into the socket, reduce jamming during the insertion process, reduce the pin insertion resistance, and enable the pin to quickly and accurately enter the locking state, thereby improving installation efficiency.

[0016] Furthermore, the expansion plate is fixedly connected to the pin in an integral molding manner, and the longitudinal section of the pin and the expansion plate combined is "T" shaped.

[0017] By adopting the above technical solution, the integrally formed "T"-shaped structure enhances the connection strength between the extension plate and the pin, preventing the extension plate from separating from the pin during hammering; at the same time, the "T"-shaped longitudinal section significantly increases the hammering force area, further reducing the probability of hammer deviation and ensuring the stability of installation operations.

[0018] Furthermore, the top frame is rotatably connected to the crossbar, and the top frame abuts against the extension plate.

[0019] By adopting the above technical solution, the rotational connection between the top frame and the crossbar allows it to rotate flexibly around the connection point, while the abutting relationship between the top frame and the extension plate ensures that the force can be effectively transmitted when the top frame rotates, providing a structural basis for using the lever principle to lift the extension plate and loosen the pin.

[0020] Furthermore, the length of the top frame near the pin is less than the length of the top frame away from the pin.

[0021] By adopting the above technical solution, the length difference between the two ends of the top frame forms a force-saving lever structure, with the far end being the power arm and the near end being the resistance arm. This allows construction workers to loosen the pin by driving the top frame with only a small hammering force, which greatly reduces the force required during disassembly and improves disassembly efficiency.

[0022] Furthermore, the pin, extension plate, and top frame are all made of 2Cr13 martensitic stainless steel.

[0023] By adopting the above technical solutions, 2Cr13 martensitic stainless steel itself has excellent rust resistance and impact toughness, avoiding the rust problem caused by the easy damage of traditional carbon steel coatings after hammering. At the same time, it can withstand high-frequency hammering without deformation, extending the service life of pins, extension plates and top frames.

[0024] Furthermore, four reinforcing plates are provided, and all four reinforcing plates are triangular in shape.

[0025] By adopting the above technical solution, the four triangular reinforcing plates utilize the structural stability of triangles to evenly distribute the hammering force borne by the top frame to the crossbar, reducing stress concentration at the connection node between the top frame and the crossbar, effectively preventing the top frame from deforming or breaking during long-term use, and enhancing the overall structural durability of the device.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, through the setting of the extension plate, effectively increases the hammering force area at the top of the pin by several times, greatly reducing the probability of construction workers hammering off-center; this not only reduces ineffective work time and improves installation efficiency, but also avoids component deformation and coating damage caused by hammering the vertical bar or disc, reducing later maintenance costs, while ensuring the accuracy of node connections and enhancing the safety of the overall scaffold structure; it also makes it easier to tighten the pin and reduces the occurrence of hammering off-center phenomenon;

[0028] 2. This utility model, through the design of the top frame, utilizes a force-saving lever structure with a shorter end near the pin and a longer end away from the pin, solving the problem of needing to hammer the bottom in the opposite direction when disassembling the traditional pin. Construction workers only need to lightly tap the far end of the top frame to easily lift the extension plate through leverage, thus loosening the pin. This not only reduces the force required for disassembly but also avoids the deformation and breakage of the bottom caused by repeated hammering of the pin, extending the pin's lifespan. It also facilitates loosening the pin and reduces the occurrence of hammering deviation.

[0029] 3. This utility model, through the setting of reinforcing plates, forms rigid support for the steel rod nodes of the top frame; reduces the deformation or breakage caused by stress concentration at both ends of the top frame, effectively enhances the structural stability and fatigue resistance of the top frame, significantly extends the overall service life of the device, ensures reliable operation during long-term construction, and increases the structural strength of the top frame. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the top frame structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the pin structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the crossbar structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the crossbar explosion structure of this utility model.

[0035] In the diagram: 1. Vertical rod; 2. Disc; 3. Insertion hole; 4. Horizontal rod; 5. Pin; 6. Extension plate; 7. Top frame; 8. Reinforcing plate. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] A quick and safe fixing device for scaffolding steel pipes, such as Figures 1-5As shown, it includes a vertical rod 1 and a horizontal rod 4. A pin 5 passes through the top of the horizontal rod 4. One side of the pin 5 is sloped. The pin 5 is slidably connected to the horizontal rod 4. The pin 5 is detachably connected to the insertion hole 3. An extension plate 6 is connected to the top of the pin 5. The extension plate 6 is fixedly connected to the pin 5 by integral molding. The longitudinal section of the pin 5 and the extension plate 6 combined is "T" shaped. A top frame 7 is connected to one side of the top of the horizontal rod 4. The top frame 7 is rotatably connected to the horizontal rod 4. The top frame 7 abuts against the extension plate 6. The length of the top frame 7 near the pin 5 is less than the length of the top frame 7 away from the pin 5. The bottom sides of the top frame 7 are... All are fixed with reinforcing plates 8, and extension plates 6 and pins 5 are integrally cast. After the two are combined, the longitudinal section is "T" shaped. The hammering area is several times larger than that of traditional pins 5, which can easily align with the force point and effectively prevent the hammer from deviating to the vertical rod 1 or the disc 2, ensuring that the pins 5 are accurately embedded in the insertion hole 3 and locked. When disassembling, the top frame 7 and the crossbar 4 are rotatably connected to form a stable fulcrum. The lever arm of the end near the pin 5 is short and the lever arm of the end away from it is long. When the construction personnel hammer the far end of the top frame 7, the top frame 7 rotates around the fulcrum and pushes the extension plate 6 upward through the near end. The extension plate 6 drives the pins 5 to be released from the insertion hole 3.

[0040] See Figure 1 and Figure 2 In the above embodiment, a disc 2 is fixed to the outer ring of the vertical rod 1. A socket 3 is provided on one side of the top of the disc 2. Multiple sockets 3 are provided and distributed in a circular array. During installation, the disc 2 fixed to the outer ring of the vertical rod 1 has multiple sockets 3 distributed in a circular array, which can meet the connection requirements of the horizontal rod 4 at several different angles and improve the flexibility of scaffolding erection. During construction, the construction personnel first align the end of the horizontal rod 4 with the disc 2 so that the plug of the horizontal rod 4 is aligned with the socket 3 at the target angle. Then, the construction personnel push the pin 5 so that its bottom passes through the socket 3 to achieve the initial positioning of the horizontal rod 4 and the vertical rod 1. At this time, the construction personnel complete the fastening by hammering the extension plate 6 at the top of the pin 5.

[0041] Example 2:

[0042] Based on the above embodiment one, the following settings are now adopted to increase the corrosion resistance of the structure.

[0043] See Figures 1-5 In the above embodiments, the pin 5, the extension plate 6 and the top frame 7 are all made of 2Cr13 martensitic stainless steel to avoid damage to the zinc plating layer on the carbon steel surface caused by hammering, which would lead to subsequent corrosion. The use of stainless steel has the characteristics of excellent corrosion resistance, thus avoiding this problem.

[0044] Example 3:

[0045] Based on the above embodiment one, in order to further increase the structural strength, the following settings are now adopted.

[0046] See Figure 1, Figure 2 , Figure 4 and Figure 5 In the above embodiment, four reinforcing plates 8 are provided, and all four reinforcing plates 8 are triangular. By increasing the number of reinforcing plates 8, the structural strength is further improved.

[0047] The implementation principle of this utility model is as follows: First, during installation, the outer ring of the vertical rod 1 is fixed with a circular disk 2, which has multiple insertion holes 3 arranged in a ring array. This can meet the connection requirements of the horizontal rod 4 at several different angles, improving the flexibility of scaffolding erection. During construction, the construction personnel first align the end of the horizontal rod 4 with the disk 2, so that the plug of the horizontal rod 4 is aligned with the insertion hole 3 at the target angle. Then, the construction personnel push the pin 5 so that its bottom passes through the insertion hole 3, achieving the initial positioning of the horizontal rod 4 and the vertical rod 1. At this time, the construction personnel complete the fastening by hammering the extension plate 6 at the top of the pin 5. The extension plate 6 and the pin 5 are integrally cast from 2Cr13 martensitic stainless steel. After the two are combined, the longitudinal section is "T" shaped, and the hammering area is several times larger than that of the traditional pin 5. This allows for easy alignment with the force point, effectively preventing the hammer from deviating to the vertical rod 1 or the disk 2, and ensuring that the pin 5 is accurately embedded in the insertion hole 3 and locked.

[0048] During disassembly, the top frame 7 and the crossbar 4 are rotatably connected to form a stable fulcrum. The lever arm of the end closer to the pin 5 is short, and the lever arm of the end farther away is long. When the construction worker hammers the far end of the top frame 7, the top frame 7 rotates around the fulcrum, and the near end pushes the extension plate 6 upward. The extension plate 6 drives the pin 5 to be released from the insertion hole 3. There is no need to hammer the bottom of the pin 5 in the opposite direction, which reduces the force intensity and avoids the problem of hammering deviation caused by the small area of ​​the bottom of the pin 5, reducing the risk of deformation and breakage of the bottom of the pin 5. During this process, the four triangular reinforcing plates 8 at the bottom of the top frame 7 evenly distribute the hammering force to the crossbar 4, preventing deformation of the two ends of the crossbar 4 due to force concentration, ensuring stable and effective leverage, and significantly improving the fatigue resistance of the top frame 7.

[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A quick and safe fixing device for scaffolding steel pipes, comprising vertical poles (1) and horizontal poles (4), characterized in that: The top of the crossbar (4) is through a pin (5), and the top of the pin (5) is connected to an extension plate (6); the top of the crossbar (4) is connected to a top frame (7), and the bottom sides of the top frame (7) are fixed with reinforcing plates (8).

2. The quick and safe fixing device for scaffolding steel pipes according to claim 1, characterized in that: The outer ring of the vertical rod (1) is fixed with a disc (2), and a hole (3) is opened on one side of the top of the disc (2).

3. The quick and safe fixing device for scaffolding steel pipes according to claim 2, characterized in that: The socket (3) is provided in multiple ways, and the multiple sockets (3) are distributed in a ring array.

4. The quick and safe fixing device for scaffolding steel pipes according to claim 3, characterized in that: The pin (5) is slidably connected to the crossbar (4), and the pin (5) is detachably connected to the socket (3).

5. The quick and safe fixing device for scaffolding steel pipes according to claim 4, characterized in that: The pin (5) has a sloping side.

6. The quick and safe fixing device for scaffolding steel pipes according to claim 5, characterized in that: The expansion plate (6) is fixedly connected to the pin (5) by integral molding, and the longitudinal section of the pin (5) and the expansion plate (6) after combination is "T" shaped.

7. The quick and safe fixing device for scaffolding steel pipes according to claim 1, characterized in that: The top frame (7) is rotatably connected to the crossbar (4), and the top frame (7) abuts against the extension plate (6).

8. The quick and safe fixing device for scaffolding steel pipes according to claim 7, characterized in that: The length of the top frame (7) near the pin (5) is less than the length of the top frame (7) away from the pin (5).

9. The quick and safe fixing device for scaffolding steel pipes according to claim 1, characterized in that: The pin (5), extension plate (6) and top frame (7) are all made of 2Cr13 martensitic stainless steel.

10. The quick and safe fixing device for scaffolding steel pipes according to claim 1, characterized in that: There are four reinforcing plates (8), and all four reinforcing plates (8) are triangular.

Images