Scaffold tie structure
The scaffold wall tie structure, which connects the anchor bars and clamping components, solves the problems of damage to the main structure and anchor detachment caused by the removal of wall ties in the existing technology. It achieves enhanced structural strength and flexible adaptation to the needs of different construction stages, and is recyclable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-10-20
- Publication Date
- 2026-07-14
AI Technical Summary
Existing scaffolding wall ties are prone to damaging the steel reinforcement arrangement of the main structure during dismantling, resulting in high dismantling costs and the risk of anchors coming loose. They also have limited functionality and cannot meet the needs of different construction stages.
The wall-connecting branch pipe is connected to the clamping component by two anchor bars. The anchor bars are welded to the steel bars in the reinforced concrete component. The clamping component is fixed to the wall-connecting branch pipe by nuts. The tie rod is connected to the scaffolding branch pipe, which can be disassembled and flexibly adjusted.
It enhances structural strength, prevents anchors from coming loose, reduces the risk of dismantling, meets the needs of different construction stages, and is recyclable.
Smart Images
Figure CN224495753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction equipment technology, specifically to a scaffolding wall tie structure that is easy to disassemble, flexible to use, prevents anchors from coming loose, and is recyclable. Background Technology
[0002] In the construction of multi-story and super high-rise buildings, the exterior wall scaffolding is not only a working platform, but also a crucial facility for ensuring the safety of workers. As the "lifeline" between the scaffolding and the main building structure, wall ties effectively transfer the horizontal load borne by the scaffolding to the main structure through various methods. This key component plays a vital role in improving the load-bearing capacity and overall stability of the scaffolding, as well as preventing major safety accidents such as collapse or overturning.
[0003] The current standard practice for scaffold wall ties is to pre-embed short vertical steel pipes on the upper surface of concrete beams or slabs—the exposed length of the short steel pipes is about 20cm. The pre-embedded steel pipes are then locked to the scaffold uprights by horizontal steel pipes and right-angle couplers to form a rigid connection system.
[0004] Although the conventional methods for using scaffolding wall ties are widely used, their safety hazards and technical shortcomings are also quite prominent. First, the embedded steel pipes disrupt the original steel reinforcement arrangement within the main structure, potentially negatively impacting the overall load-bearing capacity. Second, removing the wall ties requires cutting the exposed steel pipes, increasing labor costs and posing a fire risk due to the high-temperature sparks generated. Furthermore, the steel pipes are difficult to recycle and reuse. Third, removing the embedded steel pipes creates holes with a diameter of nearly 5cm; the smooth pipe walls result in poor adhesion to mortar during sealing, leading to a significant risk of leakage. Considering these issues, while some new wall ties attempt to optimize anchoring methods, insufficient anchoring still exists, easily causing anchors to detach and leading to wall tie failure. Additionally, existing wall ties have relatively limited design functionality, only meeting temporary connection needs and failing to adapt to the requirements of different construction stages. Utility Model Content
[0005] The purpose of this utility model is to provide a scaffolding wall tie structure to solve at least one of the technical problems existing in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] This utility model provides a scaffold wall tie structure, comprising: two anchor bars, one end of which extends into a reinforced concrete component and connects to the reinforcing bars in the reinforced concrete component; the other end of the anchor bar extending out of the reinforced concrete component is connected to a clamping component; the clamping component clamps and connects to a wall tie pipe; the wall tie pipe is connected to a tie rod, and the tie rod is connected to the scaffold support pipe.
[0008] Furthermore, the clamping component includes a first clamping block and a second clamping block that cooperate with each other, and the first clamping block and the second clamping block are provided with a semi-circular groove in the middle.
[0009] Furthermore, the two sides of the semi-circular grooves of the first clamping block and the second clamping block are connecting ear plates.
[0010] Furthermore, the connecting ear plate is provided with a through hole for the anchor bar to pass through.
[0011] Furthermore, the end of the anchor bar is provided with an external thread, and the anchor bar is connected to a nut through the external thread. The nut abuts against the connecting lug of the second clamping block.
[0012] Furthermore, a washer is provided between the nut and the connecting lug of the second clamping block.
[0013] Furthermore, a liner is provided between the first clamping block and the reinforced concrete component.
[0014] Furthermore, a pad is provided between the two connecting lugs of the first clamping block and the liner.
[0015] Furthermore, the liner and the pad are provided with through holes for the anchor bars to pass through.
[0016] Furthermore, the anchor bar extends into the reinforced concrete member and is bent and welded to the reinforcing bar.
[0017] The advantages of this utility model are: it does not damage the internal steel reinforcement arrangement; the anchor bars are welded to the vertical steel reinforcement in the reinforced concrete component to strengthen the overall structural strength; the pre-embedded anchor bars have sufficient anchorage length and are welded to the vertical steel reinforcement in the concrete component, effectively preventing the anchors from coming loose and ensuring safety; the position of the tie rods is flexible and can be adjusted according to the position of the horizontal members of the scaffold; it is easy to disassemble and can be recycled; it can meet the needs of secondary component construction and exterior wall decoration construction stages: the pre-embedded anchor bars can be used to project secondary components such as exterior wall moldings, and the channel steel can be welded to the steel clamps as the vertical keel for the external stone cladding.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the wall-connecting component structure in use according to an embodiment of this utility model.
[0021] Figure 2 This is a partial top sectional view of the wall-connecting structure described in an embodiment of this utility model.
[0022] Figure 3 This is a partial front sectional view of the wall-connecting structure described in an embodiment of this utility model.
[0023] The components include: 1. Anchor bar; 2. Reinforced concrete component; 3. Reinforcing bar; 4. Wall tie pipe; 5. Tie rod; 6. Scaffolding support pipe; 7. First clamping block; 8. Second clamping block; 9. Semi-circular groove; 10. Connecting ear plate; 11. Lining plate; 12. Spacer; 13. Nut; 14. Washer; 15. Fastener. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0026] It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as here.
[0027] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or groups thereof.
[0028] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0029] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In the description of this specification, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this technology and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this technology.
[0031] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of these terms in this art according to the specific circumstances.
[0032] To facilitate understanding of this utility model, the present utility model will be further explained and described below with reference to the accompanying drawings and specific embodiments. The specific embodiments do not constitute a limitation on the embodiments of this utility model.
[0033] Those skilled in the art should understand that the accompanying drawings are merely schematic diagrams of embodiments, and the components in the drawings are not necessarily essential for implementing this utility model.
[0034] like Figures 1 to 3 As shown, this embodiment provides a scaffolding wall tie structure, including: two anchor bars 1 (i.e., pre-embedded anchor bars), one end of which is pre-embedded in a reinforced concrete component 2 and connected to a reinforcing bar 3 in the reinforced concrete component 2; the other end of the anchor bar 1, extending out of the reinforced concrete component 2, is connected to a clamping component; the clamping component clamps and connects to a wall tie pipe 4; the wall tie pipe 4 is connected to a tie rod 5, and the tie rod 5 is connected to a scaffolding support pipe 6. The clamping component includes a first clamping block 7 and a second clamping block 8 that cooperate with each other, with a semi-circular groove 9 in the middle of the first clamping block 7 and the second clamping block 8. The diameter of the semi-circular groove 9 matches the diameter of the wall tie pipe 4 to ensure that after the first clamping block 7 and the second clamping block 8 are connected, the wall tie pipe 4 is clamped between the two semi-circular grooves 9. To ensure a relatively reliable connection between the first clamping block 7 and the second clamping block 8, connecting ear plates 10 are provided on both sides of the semi-circular groove 9 of the first clamping block 7 and on both sides of the semi-circular groove 9 of the second clamping block 8. The anchor bar 1 is connected to the ear plate 10 to connect the first clamping block 7 and the second clamping block 8.
[0035] Specifically, the connecting lug 10 has a through hole for the anchor bar 1 to pass through. The end of the anchor bar 1 has an external thread, and the anchor bar 1 is connected to a nut 13 through the external thread. The nut 13 abuts against the connecting lug 10 of the second clamping block 8. By tightening the nut 13, the first clamping block 7 and the second clamping block 8 are clamped together to ensure reliable and stable clamping of the wall-connecting branch pipe 4.
[0036] To prevent the nut from falling off and improve stability, a washer 14 can be provided between the nut 13 and the connecting lug 10 of the second clamping block 8. A liner 11 is provided between the first clamping block 7 and the reinforced concrete component 2, and a spacer 12 is provided between the two connecting lugs 10 of the first clamping block 7 and the liner 11. Both the liner 11 and the spacer 12 are provided with through holes for the anchor bar 1 to pass through. The anchor bar 1 is pre-embedded in the reinforced concrete component 2, and the portion pre-embedded in the reinforced concrete component 2 is bent and welded to the reinforcing bar 3 in the reinforced concrete component 2.
[0037] Combination Figure 2 , Figure 3In one specific embodiment, the improved scaffolding wall tie structure includes: two anchor bars 1, a stainless steel backing plate 11, two wooden pads 12, two steel clamps (i.e., the first clamp 7 and the second clamp 8), two stainless steel washers 14, two nuts 13, a short steel pipe for wall ties (i.e., the wall tie branch pipe 4), a fastener 15, and a wall tie tie rod (i.e., the tie rod 5). The anchor bars are embedded in the reinforced concrete structure, with one end bent 180° and extending horizontally for 50mm, and the other end having external threads. The horizontal distance between the two anchor bars is 100mm. The backing plate 11 is an 80mm×180mm×12mm steel plate, with two through holes at both ends matching the diameter of the anchor bars. The pads are 20mm×30mm×40mm in size and have one through hole with a diameter matching the diameter of the anchor bars. The diameter of the semi-circular grooves in the first and second clamping blocks matches the outer diameter of the scaffolding steel pipes, with external dimensions of 35mm × 70mm. The connecting ear plates on both sides are 15mm × 30mm in size, and each has a through hole that matches the diameter of the anchor bar. The through holes on the liner, the through holes on the pad, and the through holes on the connecting ear plates are positioned correspondingly to ensure that the anchor bars can pass through sequentially.
[0038] In specific applications, the dimensions of the anchor bar 1, liner plate 11, pad block 12, first clamping block 7 and second clamping block 8 are not limited by the above dimensions. Those skilled in the art can set appropriate dimensions according to the actual situation.
[0039] The installation steps for the wall connection structure described in this embodiment are as follows:
[0040] Weld the bent portion of anchor bar 1 to the vertical reinforcing bars in the reinforced concrete member, erect formwork, and pour concrete. Figure 2 As shown, anchor bar 1 is bent 180° and then extended horizontally by 50mm before being welded to the vertical reinforcement in the reinforced concrete member. This effectively strengthens the anchorage of the anchor bar and prevents it from failing and coming loose. In addition, anchor bar 1 also provides positioning for the wall tie.
[0041] The stainless steel lining plate 11 has a pre-drilled hole through which two anchor bars pass and are tightly attached to the reinforced concrete member, such as... Figure 2 As shown. The function of the lining plate is to increase the stress-bearing area and prevent the first clamping block from directly connecting with the reinforced concrete component, which would cause localized stress on the concrete and lead to cracks.
[0042] Two wooden blocks are threaded through two anchor bars and pressed tightly against the lining plate, as shown. Figure 2As shown. The connecting lugs are tightly attached to the pad, and the first clamping block's main body plane is tightly attached to the liner in the thickness direction. The function of the pad is to transfer the force from the connecting lugs on both sides of the first clamping block and the force from the main body plane in the thickness direction of the first clamping block to the liner. The wall-connecting short steel pipe (i.e., the wall-connecting branch pipe 4) is tightly attached to the semi-circular groove of the first clamping block. The connecting lugs on both sides of the outer side of the second clamping block are tightly attached to the connecting lugs of the first clamping block. The semi-circular groove of the second clamping block is tightly attached to the wall-connecting short steel pipe. Washers and nuts are installed sequentially on the outer sides of the connecting lugs on both sides of the second clamping block to ensure that the nuts are tightened so that the wall-connecting short steel pipe does not shift. The first clamping block, the second clamping block, the washers 7, and the nuts work together to fix the wall-connecting branch pipe 4.
[0043] After the wall tie pipe 4 is installed, it is connected to the wall tie rod 5 through the fastener 15. The tie rod 5 is connected to the scaffold upright (i.e., scaffold tie pipe 6) through the fastener 15. The vertical position of the wall tie rod can be flexibly adjusted according to the position of the scaffold horizontal bar.
[0044] After the scaffolding is dismantled, if the building's exterior wall is decorated with dry-hanging stone, the wall ties do not need to be removed. Instead, the outer steel clamps (i.e., the second clamp) can be welded to the channel steel serving as the vertical keel for the dry-hanging stone. Furthermore, if the building's exterior wall has reinforced concrete cantilever components, after sequentially removing the nuts, washers, steel clamps (the second and first clamps), pads, and backing plates of the wall ties, the exposed ends of the anchor bars can also be used as reinforcing bars for the reinforced concrete cantilever components. These two points satisfy other requirements of the wall ties at different construction stages. If the above two requirements are not met, then after dismantling each component in the above order, the anchor bars can be cut. The dismantled components can be reused.
[0045] In summary, the wall tie structure described in this embodiment of the invention features pre-embedded anchor bars that do not significantly disrupt the internal steel reinforcement arrangement. The welding of the steel bars extending into the reinforced concrete member with the vertical steel bars within the member further strengthens the connection between the steel bars, enhancing the overall structural integrity. The pre-embedded anchor bars have sufficient anchorage length and are bent 180° to weld with the vertical steel bars in the concrete member, effectively preventing anchor pull-out and ensuring safety. The wall tie members are flexible in position and can be adjusted according to the position of the horizontal members of the scaffolding. Disassembly is convenient, and the anchor bars can be recycled. It also meets the needs of secondary component construction and exterior wall decoration: the pre-embedded anchor bars can be used for protruding secondary components such as exterior wall moldings, and the channel steel can be welded to steel clamps as vertical keels for external stone cladding.
[0046] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that, based on the technical solutions disclosed in the present utility model, all modifications or variations that can be made by those skilled in the art without creative effort should be included within the scope of protection of the present utility model.
Claims
1. A scaffolding wall tie structure, characterized in that, include: Two anchor bars (1), one end of which is embedded in the reinforced concrete component (2) and connected to the steel bars (3) in the reinforced concrete component (2); the other end of the anchor bar (1) extends out of the reinforced concrete component (2) and is connected to a clamping component; the clamping component clamps and connects to a wall-connecting branch pipe (4); the wall-connecting branch pipe (4) is connected to a tie rod (5), and the tie rod (5) is connected to a scaffolding branch pipe (6).
2. The scaffolding wall tie structure according to claim 1, characterized in that, The clamping component includes a first clamping block (7) and a second clamping block (8) that cooperate with each other. The first clamping block (7) and the second clamping block (8) are provided with a semi-circular groove (9) in the middle.
3. The scaffolding wall tie structure according to claim 2, characterized in that, The two sides of the semi-circular groove (9) of the first clamping block (7) and the second clamping block (8) are connecting ear plates (10).
4. The scaffolding wall tie structure according to claim 3, characterized in that, The connecting ear plate (10) is provided with a through hole for the anchor bar (1) to pass through.
5. The scaffolding wall tie structure according to claim 4, characterized in that, The end of the anchor bar (1) is provided with an external thread, and the anchor bar (1) is connected to a nut (13) through the external thread. The nut (13) abuts against the connecting ear plate (10) of the second clamping block (8).
6. The scaffolding wall tie structure according to claim 5, characterized in that, A washer (14) is provided between the nut (13) and the connecting lug (10) of the second clamp (8).
7. The scaffolding wall tie structure according to claim 6, characterized in that, A liner (11) is provided between the first clamping block (7) and the reinforced concrete member (2).
8. The scaffolding wall tie structure according to claim 7, characterized in that, A pad (12) is provided between the two connecting ear plates (10) of the first clamping block (7) and the liner plate (11).
9. The scaffolding wall tie structure according to claim 8, characterized in that, The liner (11) and the pad (12) are provided with through holes for the anchor bar (1) to pass through.
10. The scaffolding wall tie structure according to any one of claims 1-9, characterized in that, The anchor bar (1) extends into the reinforced concrete member (2) and is bent and welded to the reinforcing bar (3).