Scaffold steel tube wall connector

Abstract

The utility model relates to the field of scaffold construction technology, especially a scaffold steel pipe wall connecting piece, including internal thread sleeve and fastening bolt, the movable setting of fastening bolt has support assembly, the inner end of support assembly is the telescopic structure parallel to wall body, and is butt joint with wall body outer wall, and the outer end of support assembly is connected with the outer end of fastening bolt, when fastening bolt rotates to internal thread sleeve, the inner end of support assembly stretches and gradually expands with the contact area of wall body outer wall. The utility model's support assembly's inner end butt joint wall body outer wall, on the basis of fastening bolt and internal thread sleeve horizontal tensile force, through support assembly for fastening bolt increases vertical support force, makes fastening bolt fixed scaffold more stable, when fastening bolt rotates to internal thread sleeve in the inside of wall body, the inner end of support assembly gradually stretches, makes the area of support assembly's inner end and wall body outer wall contact gradually increases, further increases the stability of fastening bolt and scaffold.

Description

Technical Field

[0001] This application relates to the field of scaffolding construction technology, and in particular to a scaffolding steel pipe wall tie. Background Technology

[0002] Wall ties are used in construction engineering to connect scaffolding to the main building structure. They are components that transmit tensile and compressive forces and are an important part of scaffolding. Wall ties play a crucial role in enhancing the overall stability of scaffolding, improving its load-bearing capacity, and preventing major accidents such as toppling or collapse. Most existing wall ties use a combination of embedded sleeves and external bolts, with scaffolding couplers connecting the steel pipes to the external bolts. However, this structure relies solely on the lateral tensile force of the external bolts and embedded sleeves to support the scaffolding pipes. After using wall ties to secure the scaffolding, we have found that the external bolts and embedded sleeves can loosen, creating safety hazards. Summary of the Invention

[0003] The present invention aims to solve the problem of unstable scaffolding fixed by the above-mentioned wall tie, and thus provides a scaffolding steel pipe wall tie.

[0004] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0005] A scaffolding steel pipe wall tie includes an internally threaded sleeve and a fastening bolt. The internally threaded sleeve is embedded inside the wall, and the fastening bolt is connected to the internally threaded sleeve. The outer end of the fastening bolt is connected to the scaffolding steel pipe through a scaffolding fastener. A support component is movably mounted on the fastening bolt. The inner end of the support component is a telescopic structure parallel to the wall and abuts against the outer wall. The outer end of the support component is connected to the outer end of the fastening bolt. When the fastening bolt rotates toward the internally threaded sleeve, the inner end of the support component extends and the contact area with the outer wall gradually increases.

[0006] Compared with the prior art, the advantages of this utility model, which adopts the above technical solution, are as follows:

[0007] This invention incorporates a support component on the fastening bolt. The inner end of the support component abuts against the outer wall of the wall. Based on the lateral tension between the fastening bolt and the internal threaded sleeve, the support component adds vertical support force to the fastening bolt, making the scaffolding more stable. As the fastening bolt rotates towards the internal threaded sleeve inside the wall, the inner end of the support component gradually extends, increasing the contact area between the inner end of the support component and the outer wall of the wall, further enhancing the stability of the fastening bolt and the scaffolding.

[0008] As a preferred embodiment, a further technical solution of this utility model is:

[0009] The support assembly includes a fixed plate, at least two telescopic sleeves, and two first diagonal braces. The telescopic sleeves abut against the outer wall of the wall, and the telescopic ends of each telescopic sleeve are hinged to the respective first diagonal braces. The other end of each first diagonal brace is hinged to the fixed plate. The fixed plate is connected to the outer end of the fastening bolt. As the fastening bolt gradually approaches the outer wall of the wall, the first diagonal braces cause the telescopic ends of the telescopic sleeves to gradually extend. The telescopic sleeves abut against the outer wall of the wall to provide vertical support for the fastening bolt and the scaffolding steel pipes, while the first diagonal braces provide diagonal support between the fastening bolt and the wall, making the fastening bolt more secure.

[0010] The fixing plate has a through hole in the middle, the diameter of which is smaller than the diameter of the head of the fastening bolt. The fixing plate is fitted onto the shank of the fastening bolt through the through hole. With the above structure, as the fastening bolt and the internal threaded sleeve are gradually tightened, the fixing plate gradually moves closer to the outer wall of the wall under the action of the head of the fastening bolt, thereby causing the diagonal brace to gradually tilt, and then causing the telescopic sleeve to extend.

[0011] An elastic connector is provided between the fixed plate and the fixed ends of each telescopic sleeve rod, allowing the fixed plate to abut against the inner side of the head of the fastening bolt. The elastic connector supports the telescopic sleeve rod and the fixed plate, making the support assembly a whole, which is convenient for assembly and storage; at the same time, it can also increase the lateral tensile diameter around the fastening bolt, further increasing the stability of the scaffold.

[0012] A connecting rod is fixed to the outer side of the head of the fastening bolt, and the connecting rod is connected to the scaffold steel pipe through scaffold couplers. The connecting rod provides a fixed position for the scaffold couplers.

[0013] The telescopic rod consists of multiple telescopic rod sections, nested sequentially between upper and lower sections. The first telescopic rod section is hinged to the first diagonal brace, and the outer wall of the last telescopic rod section is fixed to an elastic connector. This structure facilitates the extension of the first telescopic rod section by the first diagonal brace, thereby causing each telescopic rod section to extend from the last telescopic rod section.

[0014] The elastic connector is a spring.

[0015] At least two second diagonal braces are provided between the top of the internally threaded sleeve and the outer wall of the wall, with each second diagonal brace being equally spaced. The second diagonal braces provide diagonal support to the internally threaded sleeve inside the wall, further increasing the stability of the scaffolding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the telescopic sleeve rod in an embodiment of this application when it is not extended;

[0017] Figure 2 This is a schematic diagram of the telescopic sleeve rod when it is extended according to an embodiment of this application;

[0018] In the diagram: 1. Wall; 2. Internal threaded sleeve; 21. Second diagonal brace; 3. Telescopic sleeve; 4. First diagonal brace; 5. Elastic connector; 6. Fastening bolt; 7. Connecting rod; 8. Scaffolding fastener; 9. Fixing plate. Detailed Implementation

[0019] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] Reference Figure 1-2 This application discloses a scaffolding steel pipe wall connection component, including an internally threaded sleeve 2 and a fastening bolt 6. The internally threaded sleeve 2 is embedded inside the wall 1. The fastening bolt 6 is threadedly connected to the internally threaded sleeve 2. The outer end of the fastening bolt 6 is connected to the scaffolding steel pipe through a scaffolding fastener 8. A support component is movably provided on the fastening bolt 6. The inner end of the support component is a telescopic structure parallel to the wall 1 and abuts against the outer wall of the wall 1. The outer end of the support component is connected to the outer end of the fastening bolt 6. When the fastening bolt 6 rotates toward the internally threaded sleeve 2, the inner end of the support component extends and the contact area with the outer wall of the wall 1 gradually increases.

[0021] In this embodiment, the support assembly includes a fixed plate 9, at least two telescopic sleeves 3, and at least two first diagonal braces 4. Each telescopic sleeve 3 is arranged radially along the fastening bolt 6, and its extension direction is also radially along the fastening bolt 6. The inner sidewall of the telescopic sleeve 3 abuts against the outer wall of the wall 1, and the extension end of each telescopic sleeve 3 is hinged to each first diagonal brace 4. The other end of each first diagonal brace 4 is hinged to the fixed plate 9. The fixed plate 9 is connected to the outer end of the fastening bolt 6. As the fastening bolt 6 gradually approaches the outer wall of the wall 1, the first diagonal brace 4 causes the extension end of the telescopic sleeve 3 to gradually extend, increasing the overall length of the telescopic sleeve 3 and thus increasing the contact area between the telescopic sleeve 3 and the outer wall of the wall 1. The telescopic sleeve 3 abuts against the outer wall of the wall 1, providing vertical support for the fastening bolt 6 and the scaffolding steel pipe. The first diagonal brace 4 provides diagonal support between the fastening bolt 6 and the wall 1, making the fastening bolt 6 more securely fixed.

[0022] In this embodiment, the fixing plate 9 has a through hole in the middle, the diameter of which is smaller than the diameter of the head of the fastening bolt 6. The fixing plate 9 is fitted onto the shank of the fastening bolt 6 through the through hole. With the above structure, as the fastening bolt 6 and the internal threaded sleeve 2 are gradually tightened, the fixing plate 9 gradually moves closer to the outer wall of the wall 1 under the action of the head of the fastening bolt 6, thereby causing the first diagonal brace 4 to gradually tilt, and then causing the telescopic sleeve 3 to extend.

[0023] In this embodiment, an elastic connector 5 is provided between the fixed plate 9 and the fixed ends of each telescopic sleeve rod 3. The elastic connector 5 allows the outer wall of the fixed plate 9 to abut against the head of the fastening bolt 6. As the fixed plate 9 moves towards the outer wall of the wall 1, the elastic connector 5 is gradually compressed, allowing the fixed plate 9 to fit as closely as possible to the side wall of the tail section of the telescopic sleeve rod 3, thereby increasing stability. Preferably, the elastic connector 5 is a spring. The elastic connector 5 supports the telescopic sleeve rod 3 and the fixed plate 9, making the support assembly a single unit, facilitating assembly and storage. Simultaneously, the spring surrounding the fastening bolt 6 increases the lateral tensile diameter around the fastening bolt 6, further enhancing the stability of the scaffold.

[0024] In this embodiment, a connecting rod 7 is coaxially fixed to the outer side of the head of the fastening bolt 6. The connecting rod 7 is connected to the scaffold steel pipe through the scaffold fastener 8. One end of the scaffold steel pipe abuts against the outer wall of the fixing plate 9 or against the outer wall of the wall 1 next to the fastening bolt 6. The connecting rod 7 provides a fixed position for the scaffold fastener 8.

[0025] In this embodiment, the telescopic sleeve rod 3 is composed of multiple telescopic rod sections, nested sequentially between the upper and lower sections. Each section is a hollow cylindrical rod. Except for the tail section, each section has a radial limiting ring fixed to its bottom end. The diameter of the limiting ring is larger than the opening size at the top of the telescopic rod during its extension and retraction, thus preventing the sections from falling off. Both ends of the first diagonal brace 4 are fixed with lifting rings, and the first section of the telescopic rod is fixed with a lifting lug. The first section of the telescopic rod is hinged to the first diagonal brace 4 through the lifting lug and the lifting ring. The outer wall of the tail section of the telescopic rod is fixed to the elastic connector 5. Preferably, the bottom of the tail section of the telescopic rod has a spring groove to accommodate the spring when compressed, allowing the fixing plate 9 to contact the telescopic sleeve rod 3, increasing the stability of the fastening bolt 6 and the connecting rod 7. With the above structure, the first diagonal brace 4 can easily drive the first section of the telescopic rod to extend, and then drive each section of the telescopic rod to extend from the tail section of the telescopic rod, providing stable support for the scaffold.

[0026] In this embodiment, at least two second diagonal braces 21 are provided between the top end of the internally threaded sleeve 2 and the outer wall of the wall 1. The second diagonal braces 21 are evenly spaced. Preferably, the internally threaded sleeve 2 is made of steel, and the second diagonal braces 21 are also made of steel. The second diagonal braces 21 are welded and fixed to the internally threaded sleeve 2. The second diagonal braces 21 provide diagonal support to the internally threaded sleeve 2 inside the wall 1, further increasing the stability of the scaffolding.

[0027] In this embodiment, the internal threaded sleeve 2 and the second diagonal brace 21 are temporarily fixed to the wall 1 formwork during the construction of the wall 1 formwork. Subsequently, the concrete for the wall 1 is poured, embedding the internal threaded sleeve 2 and the second diagonal brace 21 into the wall 1. When scaffolding needs to be installed, the fastening bolt 6 is first passed through the through hole of the fixing plate 9, causing the telescopic sleeve 3 to abut against the outer wall of the wall 1. The fastening bolt 6 is then rotated into the internal threaded sleeve 2. During rotation, the head of the fastening bolt 6 presses against the fixing plate 9, causing the fixing plate to move. As the fixed plate 9 moves closer to the outer wall of the wall 1, it causes the hinged first diagonal brace 4 to tilt and gradually become parallel to the wall 1. During this process, the telescopic sleeve 3, which is hinged to the first diagonal brace 4, gradually extends, and the spring gradually compresses into the spring groove until the fixed plate 9 contacts the telescopic sleeve 3. The scaffolding steel pipe is connected to the scaffolding coupler 8, and the scaffolding coupler 8 is fixed to the connecting rod 7, so that one end of the scaffolding steel pipe abuts against the outer wall of the fixed plate 9, or against the outer wall of the wall 1 next to the fastening bolt 6.

[0028] This utility model provides a support component on the fastening bolt 6. The inner end of the support component abuts against the outer wall of the wall 1. Based on the lateral tension of the fastening bolt 6 and the internal threaded sleeve 2, the support component adds vertical support force to the fastening bolt 6, making the fastening bolt 6 more stable in fixing the scaffold. When the fastening bolt 6 rotates towards the internal threaded sleeve 2 inside the wall 1, the inner end of the support component gradually extends, so that the contact area between the inner end of the support component and the outer wall of the wall 1 gradually increases, further increasing the stability of the fastening bolt 6 and the scaffold.

[0029] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A scaffolding steel pipe wall tie, comprising an internally threaded sleeve (2) and a fastening bolt (6), wherein the internally threaded sleeve (2) is embedded inside the wall (1), and the fastening bolt (6) is disposed on the outside of the wall for connection with the internally threaded sleeve (2), and the outer end of the fastening bolt (6) is connected to the scaffolding steel pipe through a scaffolding coupler (8), characterized in that: A support component is movably provided on the fastening bolt (6). The inner end of the support component is a telescopic structure parallel to the wall (1) and abuts against the outer wall of the wall (1). The outer end of the support component is connected to the outer end of the fastening bolt (6). When the fastening bolt (6) rotates toward the inner threaded sleeve (2), the inner end of the support component extends and the contact area with the outer wall of the wall (1) gradually increases.

2. The scaffolding steel pipe wall tie according to claim 1, characterized in that: The support assembly includes a fixed plate (9), at least two telescopic sleeves (3) and two first diagonal braces (4). The telescopic sleeves (3) abut against the outer wall of the wall (1), and the telescopic ends of each telescopic sleeve (3) are respectively hinged to each first diagonal brace (4). The other end of each first diagonal brace (4) is hinged to the fixed plate (9). The fixed plate (9) is connected to the outer end of the fastening bolt (6). When the fastening bolt (6) gradually approaches the outer wall of the wall (1), the first diagonal brace (4) drives the telescopic ends of the telescopic sleeves (3) to gradually extend.

3. The scaffolding steel pipe wall tie according to claim 2, characterized in that: The fixing plate (9) has a through hole in the middle. The diameter of the through hole is smaller than the diameter of the head of the fastening bolt (6). The fixing plate (9) is fitted onto the rod of the fastening bolt (6) through the through hole.

4. The scaffolding steel pipe wall tie according to claim 2, characterized in that: An elastic connector (5) is provided between the fixed plate (9) and the fixed end of each telescopic sleeve (3), and the fixed plate (9) is made to abut against the inner side of the head of the fastening bolt (6) through the elastic connector (5).

5. The scaffolding steel pipe wall tie according to claim 1, characterized in that: A connecting rod (7) is fixed to the outer side of the head of the fastening bolt (6), and the connecting rod (7) is connected to the scaffold steel pipe through the scaffold fastener (8).

6. The scaffolding steel pipe wall tie according to claim 4, characterized in that: The telescopic sleeve (3) is composed of multiple telescopic rods, with the upper and lower telescopic rods nested in sequence. The first telescopic rod is hinged to the first diagonal brace (4), and the outer wall of the tail telescopic rod is fixed to the elastic connector (5).

7. The scaffolding steel pipe wall tie according to claim 4, characterized in that: The elastic connector (5) is a spring.

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