A telescopic adjustable outrigger connection structure

Abstract

A telescopic adjustable outer frame connecting structure relates to the technical field of building auxiliary equipment, including a wall leaning piece, a wall connecting pipe and a frame leaning piece, the wall leaning piece is used for connecting with a pre-embedded piece, the frame leaning piece is used for being sleeved on a steel pipe of a scaffold, and the wall connecting pipe is arranged between the wall leaning piece and the frame leaning piece; the wall leaning piece is provided with a first screw rod, the frame leaning piece is provided with a second screw rod, and the screw threads of the first screw rod and the second screw rod are opposite in rotation direction; the wall connecting pipe comprises a hollow rod body, a first embedded nut and a second embedded nut, the first embedded nut and the second embedded nut are respectively welded on both ends of the hollow rod body, the first embedded nut is threadedly matched with the first screw rod, and the second embedded nut is threadedly matched with the second screw rod; when the wall connecting pipe is rotated, the opposite rotation directions of the first screw rod and the second screw rod can adjust the relative distance between the wall leaning piece and the frame leaning piece; the defects that the traditional wall connecting piece is difficult to adjust and prone to loosening are effectively overcome, so that the stability and safety of the scaffold connection are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of building auxiliary equipment technology, and in particular to a telescopic and adjustable external frame connection structure. Background Technology

[0002] Scaffolding, as an indispensable temporary support and working platform in construction, directly affects the lives and property of construction workers and the overall progress of the project. Wall ties are a key component of the scaffolding system, used to reliably connect the scaffolding frame to the main building structure and effectively transfer horizontal loads and vertical pressure, preventing the scaffolding from overturning or shifting. Traditionally, wall ties are often made by pre-embedding steel pipes or plates in the wall before concrete pouring, and then fixing them to the scaffolding via welding or bolts after formwork removal.

[0003] In the prior art, Chinese utility model patent CN222810430U discloses a wall tie including a supporting base plate, a connecting screw, a fixing rod, and an anti-detachment rod. The supporting base plate has multiple mounting holes and is connected to the main structure via expansion bolts installed in these holes. A connecting screw is fixed to the center of the supporting base plate. One end of the fixing rod is threaded to the connecting screw, and the other end is connected to the scaffolding via a fastener. A first through hole is formed on the connecting screw, and a second through hole is formed on the fixing rod. The anti-detachment rod passes through both the second and first through holes. This structure solves the problem of installation failure due to deviations in the preset positions of embedded parts.

[0004] However, this wall tie structure still has significant drawbacks. First, it relies on expansion bolts for anchoring to the wall surface. While this avoids the problem of positional deviations in pre-embedded parts, the frequent drilling operations can cause multiple localized damages to the wall, potentially weakening its overall load-bearing capacity. Second, and more critically, the structure lacks an effective tension adjustment mechanism. In actual construction, after the scaffolding is installed, the tension of the wall ties needs to be adjusted in real time according to the flatness of the wall and the displacement of the scaffolding to ensure that the scaffolding system has sufficient structural strength. If the wall ties cannot be tensioned, the assembled scaffolding will be loose, easily leading to loose connections or uneven stress, thus creating safety hazards. Utility Model Content

[0005] The technical problem to be solved by this utility model is the problem of scaffolding collapsing and uneven stress caused by insufficient tension of the wall ties.

[0006] To achieve the above objectives, according to one aspect of the utility model, a retractable and adjustable scaffolding connection structure is provided, including a wall-mounted component, a wall-connecting pipe, and a support component. The wall-mounted component is used to connect with embedded parts within the building structure, and the support component is used to be fitted onto the steel pipe of the scaffolding. The wall-connecting pipe is disposed between the wall-mounted component and the support component. A first screw is provided on the wall-mounted component, and a second screw is provided on the support component. The threads of the first screw and the second screw have opposite directions. The wall-connecting pipe includes a hollow rod body, a first embedded nut, and a second embedded nut. The first embedded nut and the second embedded nut are respectively welded to both ends of the hollow rod body. The first embedded nut is threadedly engaged with the first screw, and the second embedded nut is threadedly engaged with the second screw. When the wall-connecting pipe is rotated, the relative distance between the wall-mounted component and the support component can be adjusted by the opposite directions of the first screw and the second screw.

[0007] As a preferred embodiment of the above technical solution, the support frame includes a U-shaped steel plate, a third screw, and a second screw. The U-shaped steel plate includes a base plate and two side wing plates. The U-shaped steel plate is used to be fitted onto the steel pipe. The third screw passes through the two wing plates and is used to adjust the clamping distance of the wing plates. The second screw passes through the base plate and is threadedly engaged with the second embedded nut. A positioning nut is provided on the other side of the base plate for fixing.

[0008] As a preferred embodiment of the above technical solution, the end of the wall-mounted component away from the wall-connecting pipe is provided with a fastener, the fastener having a slot for inserting the embedded component, and the embedded component having a mating hole, and a fixed connection is achieved by inserting a connector through the mating hole of both the fastener and the embedded component.

[0009] As a preferred embodiment of the above technical solution, the first embedded nut includes a first nut body and a first substrate. The first nut body is welded to the first substrate and located inside the hollow rod. The first substrate has a through hole communicating with the first nut body, and the first substrate is welded and fixed to the outer surface of the hollow rod. The second embedded nut includes a second nut body and a second substrate. The second nut body is welded to the second substrate and located inside the hollow rod. The second substrate has a through hole communicating with the second nut body, and the second substrate is welded and fixed to the outer surface of the hollow rod.

[0010] As a preferred embodiment of the above technical solution, it further includes a first telescopic plastic tube, which is sleeved on the first screw and located between the wall-mounted component and the wall-connecting pipe.

[0011] As a preferred embodiment of the above technical solution, a second telescopic plastic tube is further included, which is sleeved on the second screw and located between the support member and the wall connecting pipe.

[0012] As a preferred embodiment of the above technical solution, a radially penetrating adjustment hole is provided in the middle of the hollow rod.

[0013] As a preferred embodiment of the above technical solution, the third screw is a bolt, and tightening the third screw can cause the wing plate to clamp the steel pipe.

[0014] As a preferred embodiment of the above technical solution, the connector includes an integrally formed plug portion and a bent portion. The cross-section of the plug portion is a trapezoidal sheet structure that gradually decreases from top to bottom. The bent portion is located below the plug portion and is bent to one side.

[0015] As a preferred embodiment of the above technical solution, the outer surface of the wall-connecting pipe is provided with anti-slip texture.

[0016] In summary, this utility model has the following advantages: 1. This utility model sets up a first screw and a second screw with opposite screw directions, and makes them cooperate with the embedded nuts at both ends of the wall tie pipe, so that the relative distance between the wall-mounted component and the support component can be adjusted synchronously and conveniently by simply rotating the wall tie pipe. This achieves efficient tensioning and effectively overcomes the defects of traditional wall ties, such as difficulty in adjustment and easy loosening, thereby significantly improving the stability and safety of scaffolding connections. 2. Furthermore, through the specific design of the U-shaped steel plate and the third screw in the support frame, a convenient and reliable clamp-type fixation of the scaffolding steel pipes is achieved. The U-shaped steel plate can be directly fitted onto the steel pipe, and by tightening the third screw that passes through the two side flanges, the clamping distance can be quickly adjusted and it can be firmly locked onto the steel pipe, effectively preventing slippage or loosening during use; this design not only adapts to steel pipes of different diameters, but its mechanical locking reliability is also significantly better than traditional friction-based fastener connections; 3. Furthermore, a radially penetrating adjustment hole is set in the middle of the hollow rod of the wall tie pipe, which greatly improves the convenience and efficiency of the length adjustment operation; by inserting a rod-shaped tool, a larger torque can be obtained with less effort using the lever principle, which solves the problem of inconvenient adjustment of the wall tie pipe in a narrow space or under high load, and ensures that the tensioning operation can be completed smoothly under various complex construction conditions. Further or other beneficial effects will be discussed in the embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model after installation; Figure 2 This is a front view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram showing the cooperation between the support frame and the steel pipe of this utility model; Figure 5 This is a schematic diagram of the embedded part structure; Among them, 1-wall-mounted component, 11-first screw, 12-fastener, 121-slot, 2-wall-connecting pipe, 21-hollow rod body, 211-adjusting hole, 22-first embedded nut, 221-first nut body, 222-first base plate, 23-second embedded nut, 231-second nut body, 232-second base plate, 3-frame component, 31-second screw, 32-U-shaped steel plate, 33-third screw, 34-positioning nut, 321-base plate, 322-wing plate, 5-embedded component, 51-fitting hole, 6-steel pipe, 7-plug-in component, 71-plug-in part, 72-bending part, 8-first telescopic material tube, 9-second telescopic material tube. Detailed Implementation

[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0019] The present invention will be further explained below with reference to the embodiments: Example:

[0020] A retractable and adjustable external frame connection structure, as shown in the reference. Figure 1 This includes a wall-mounted component 1, a wall-connecting pipe 2, and a support component 3. The wall-mounted component 1 is used to connect with the embedded component 5 within the main building structure. The specific structure of the embedded component is described in [reference needed]. Figure 5 The support member 3 is used to be fitted onto the steel pipe 6 of the scaffold, and the wall tie pipe 2 is set between the wall tie member 1 and the support member 3, forming a key force transmission component connecting the main building and the scaffold.

[0021] Reference Figure 2 and Figure 3The wall-mounted component 1 is equipped with a first screw 11, and the support component 3 is equipped with a second screw 31. The threads of the first screw 11 and the second screw 31 have opposite directions; for example, the first screw 11 uses a right-hand thread, and the second screw 31 uses a left-hand thread. The wall-connecting pipe 2 includes a hollow rod body 21, a first embedded nut 22, and a second embedded nut 23. The first embedded nut 22 and the second embedded nut 23 are respectively located at both ends of the hollow rod body 21. The first embedded nut 22 is threadedly engaged with the first screw 11, and the second embedded nut 23 is threadedly engaged with the second screw 31.

[0022] When the wall-connecting pipe 2 is rotated, the relative distance between the wall-mounted component 1 and the support component 3 can be adjusted synchronously through the opposite rotation directions of the first screw 11 and the second screw 31, thereby achieving the tensioning or loosening adjustment function. This design allows operators to achieve bidirectional synchronous adjustment simply by rotating the wall-connecting pipe 2, greatly improving installation efficiency and adjustment accuracy.

[0023] Specifically, refer to Figure 4 The support member 3 includes a U-shaped steel plate 32, a second screw 31, and a third screw 33. The U-shaped steel plate 32 includes a base plate 321 and two side flanges 322, and is used to fit onto the steel pipe 6. The third screw 33 passes through the two flanges 322 and is used to adjust the clamping distance of the flanges 322 to ensure that the U-shaped steel plate 32 can be firmly clamped onto the scaffolding steel pipe 6. The third screw 33 is a bolt, and tightening the third screw 33 can clamp the flanges 322 onto the steel pipe 6. This clamping mechanism ensures a reliable connection between the support member 3 and the scaffolding steel pipe 6, preventing slippage or detachment. The second screw 31 passes through the base plate 321 and is threaded into a second embedded nut 23. A positioning nut 34 is provided on the other side of the base plate 321 for fixing and preventing loosening during use. Relatively speaking, the above structure has better flexibility in use and is more convenient to adjust.

[0024] A snap-fit ​​connector 12 is provided at the end of the wall-mounted component 1 away from the wall-connecting pipe 2. The snap-fit ​​connector 12 has a slot 121 for inserting the embedded component 5. The embedded component 5 has a mating hole 51. A fixed connection is achieved by inserting a plug 7 through both the snap-fit ​​connector 12 and the mating hole 51 of the embedded component 5. This plug-in connection method simplifies the installation process and improves construction efficiency.

[0025] Furthermore, the first embedded nut 22 includes a first nut body 221 and a first substrate 222. The first nut body 221 is welded to the first substrate 222 and located inside the hollow rod 21. The first substrate 222 has a through hole communicating with the first nut body 221, and the first substrate 222 is welded and fixed to the outer surface of the hollow rod 21. Similarly, the second embedded nut 23 includes a second nut body 231 and a second substrate 232. The second nut body 231 is welded to the second substrate 232 and located inside the hollow rod 21. The second substrate 232 has a through hole communicating with the second nut body 231, and the second substrate 232 is welded and fixed to the outer surface of the hollow rod 21.

[0026] To protect the exposed screw portion from corrosion and damage, this invention also includes a first telescopic plastic tube 8 and a second telescopic plastic tube 9. The first telescopic plastic tube 8 is sleeved on the first screw 11 and located between the wall-mounted component 1 and the wall-connecting pipe 2; the second telescopic plastic tube 9 is sleeved on the second screw 31 and located between the support component 3 and the wall-connecting pipe 2. This protective design extends the service life of the screw. Without the telescopic plastic tubes, the threaded portion would be exposed, and during routine wall plastering or concrete pouring, mortar would fall onto the threads and solidify, affecting subsequent adjustments and disassembly.

[0027] For ease of operation, a radially penetrating adjustment hole 211 is provided in the middle of the hollow rod body 21 for inserting an adjustment rod to increase the rotational torque. When the connection structure requires a larger tension force, the operator can apply a greater torque by inserting the adjustment rod, which is labor-saving and efficient.

[0028] The connector 7 includes an integrally formed plug portion 71 and a bent portion 72. The cross-section of the plug portion 71 is a trapezoidal sheet structure that gradually decreases in size from top to bottom. The anti-detachment bent portion 72 is located below the plug portion 71 and bends to one side to prevent the connector 7 from falling off. This anti-detachment design ensures the reliability of the connection and maintains stability even in vibration environments.

[0029] In addition, the outer surface of the wall-connecting pipe 2 is provided with anti-slip textures for easy manual rotation. The anti-slip textures increase surface friction, making manual adjustment more convenient, and providing a good operating experience, especially in humid environments.

[0030] The working principle of this utility model is as follows: During installation, firstly, the wall-mounted component 1 is connected to the embedded component 5 in the main building structure via the fastener 12 and fixed with the plug-in component 7; then, the U-shaped steel plate 32 of the support component 3 is fitted onto the scaffold steel pipe 6, and the third screw 33 is tightened to clamp the steel pipe; next, the embedded nuts at both ends of the wall-connecting pipe 2 are respectively connected to the first screw 11 of the wall-mounted component 1 and the second screw 31 of the support component 3; finally, according to actual needs, the wall-connecting pipe 2 is rotated, and the wall-mounted component 1 and the support component 3 are moved towards or away from each other using the opposite spiral thread design until the required tension is achieved. If a larger torque is required, a lever can be inserted through the adjustment hole 211 for rotation.

[0031] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A telescopic and adjustable external frame connection structure, characterized in that: The system includes a wall-mounted component (1), a wall-connecting pipe (2), and a support component (3). The wall-mounted component (1) is used to connect with the embedded parts (5) in the main building structure. The support component (3) is used to be fitted onto the steel pipe (6) of the scaffold. The wall-connecting pipe (2) is located between the wall-mounted component (1) and the support component (3). The wall-mounted component (1) is provided with a first screw (11), and the support component (3) is provided with a second screw (31). The threads of the first screw (11) and the second screw (31) are opposite in direction. The wall-connecting pipe (2) includes a hollow rod body (21). The first embedded nut (22) and the second embedded nut (23) are respectively welded to both ends of the hollow rod body (21). The first embedded nut (22) is threadedly engaged with the first screw (11), and the second embedded nut (23) is threadedly engaged with the second screw (31). When the wall connecting pipe (2) is rotated, the relative distance between the wall support (1) and the support frame (3) can be adjusted by the opposite rotation directions of the first screw (11) and the second screw (31).

2. The telescopic and adjustable external frame connection structure according to claim 1, characterized in that: The support member (3) includes a U-shaped steel plate (32), a third screw (33) and a second screw (31). The U-shaped steel plate (32) includes a base plate (321) and two wing plates (322) on both sides. The U-shaped steel plate (32) is used to be sleeved on the steel pipe (6). The third screw (33) passes through the two wing plates (322) and is used to adjust the clamping distance of the wing plates (322). The second screw (31) passes through the base plate (321) and is threadedly engaged with the second embedded nut (23). A positioning nut (34) is provided on the other side of the base plate (321) for fixing.

3. The telescopic and adjustable external frame connection structure according to claim 1, characterized in that: The wall-mounted component (1) is provided with a fastener (12) at one end away from the wall-connecting pipe (2). The fastener (12) has a slot (121) for inserting the embedded component (5). The embedded component (5) has a mating hole (51). A fixed connection is achieved by inserting a connector (7) through both the fastener (12) and the mating hole (51) of the embedded component (5).

4. The telescopic and adjustable external frame connection structure according to claim 1, characterized in that: The first embedded nut (22) includes a first nut body (221) and a first substrate (222). The first nut body (221) is welded to the first substrate (222) and located inside the hollow rod (21). The first substrate (222) has a through hole communicating with the first nut body (221). The first substrate (222) is welded and fixed to the outer surface of the hollow rod (21). The second embedded nut (23) includes a second nut body (231) and a second substrate (232). The second nut body (231) is welded to the second substrate (232) and located inside the hollow rod (21). The second substrate (232) has a through hole communicating with the second nut body (231). The second substrate (232) is welded and fixed to the outer surface of the hollow rod (21).

5. The telescopically adjustable external frame connection structure according to claim 1, characterized in that: It also includes a first telescopic plastic tube (8), which is sleeved on the first screw (11) and located between the wall-mounted component (1) and the wall-connecting pipe (2).

6. The telescopically adjustable external frame connection structure according to claim 1, characterized in that: It also includes a second telescopic plastic tube (9), which is sleeved on the second screw (31) and located between the support member (3) and the wall connecting pipe (2).

7. The telescopic and adjustable external frame connection structure according to claim 1, characterized in that: The hollow rod (21) has a radially penetrating adjustment hole (211) in the middle.

8. The telescopic and adjustable external frame connection structure according to claim 2, characterized in that: The third screw (33) is a bolt, and by tightening the third screw (33), the wing plate (322) can clamp the steel pipe (6).

9. The telescopically adjustable external frame connection structure according to claim 3, characterized in that: The connector (7) includes an integrally formed plug part and a bent part. The cross-section of the plug part (71) is a trapezoidal sheet structure that gradually decreases from top to bottom. The bent part (72) is located below the plug part (71) and bends to one side.

10. The telescopically adjustable external frame connection structure according to claim 1, characterized in that: The outer surface of the wall-connecting pipe (2) is provided with anti-slip texture.

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