Novel wall connecting structure of external scaffold

Abstract

The utility model discloses a new type of wall connecting structure of outer scaffold relates to building construction technical field. Including wall connecting rod spare, buckling piece, first spacer, embedded part, connecting rod, and the embedded part is separately arranged with first spacer at the both sides of formwork, and first spacer is sleeved and is connected at the outside of wall connecting rod spare and is located between the axle base of wall connecting rod spare and formwork, and one end surface of first spacer is pasted with axle base, and the other end surface is pasted with the side of formwork, and wall connecting rod spare passes first spacer and formwork in proper order and is detachably connected with embedded part, and connecting rod is arranged in parallel with first spacer, and is detachably connected with connecting rod through buckling piece, and one end surface of connecting rod is pasted with the side of formwork, and the other end is free extension, and connecting rod is connected with scaffold stand through the card. The utility model discloses simple and reliable structure, and the spare part except embedded part can be repeatedly used, and material loss is greatly reduced, and construction cost is reduced, and construction quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a novel wall-connecting structure for external scaffolding. Background Technology

[0002] With the rapid development of the construction industry, scaffolding, as an indispensable tool on construction sites, has seen its safety and efficiency become a focus of industry attention. For single and double-row scaffolding with a height of 24m or less, rigid wall ties should be used for reliable connection to the building. Alternatively, a combination of tie rods and top bracing can be used for wall-attached connections, but flexible wall ties with only tie rods are strictly prohibited. For double-row scaffolding with a height exceeding 24m, a rigid connection structure must be used for reliable connection to the building. Common connection methods between external scaffolding and buildings include: I. Steel Pipe Coupler Type (Clamping Type): A short steel pipe (tie rod) is connected to the scaffold uprights using right-angle couplers. The other end of the short steel pipe passes through an opening in the exterior wall of the building structure (such as a window opening), and a longer horizontal steel pipe ("inner horizontal bar") is used as a back brace on both sides of the wall. Two right-angle couplers or swivel couplers are used to firmly connect the tie rod to the inner horizontal bar, forming a "clamping" effect on the wall. This connection structure has requirements on the size and location of the wall opening. If the opening is too large or the back brace is not long enough, it may affect the clamping effect. After dismantling, the wall opening needs to be sealed, and there is a risk of leakage.

[0003] II. Pre-embedded steel pipe type Steel pipes are pre-embedded before concrete pouring. When pouring concrete walls or columns, a short steel pipe is pre-embedded, with both ends extending beyond the formwork. After formwork removal, a connecting steel pipe is used; one end is connected to the scaffold upright using a right-angle coupler, and the other end is connected to the pre-embedded steel pipe using a right-angle coupler or swivel coupler, forming a rigid connection. The pre-embedded steel pipe is occupied during construction and cannot be reused. The pre-embedded pipe is prone to displacement during concrete pouring.

[0004] III. Screw-connected type (through-wall tie type) The connection is achieved by tying the tie rod to the wall itself, either by pre-drilling holes in the wall or utilizing the openings for tie rods. A tie rod (usually a double-ended stud) is inserted, with a steel plate or structural steel serving as a backing plate on the inside, and tightened with a nut. The outside of the tie rod is connected to the scaffold uprights or horizontal bars using fasteners. This connection structure requires drilling holes in the wall, and installation and removal are cumbersome. There is also a waterproofing issue when sealing the holes later.

[0005] IV. Reinforcing bar welding / tying This method is commonly used in infill walls of frame structures. A thick steel bar (e.g., Φ8-Φ12) is welded or tied to the embedded iron parts of the frame column or directly to the main reinforcement of the column (subject to design approval). The other end of the steel bar is bent into a hook shape, tightly fastened to the upright of the scaffold, and secured with wire. This type of connection requires welding, posing a fire safety hazard. The strength of the tying is not as good as that of the coupler connection. It also affects the reinforcement of the main structure. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a new type of wall-connecting structure for external scaffolding. The structure is simple, safe and reliable, and the components other than the pre-embedded parts can be reused, which greatly reduces material consumption, lowers construction costs and improves construction quality.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a novel wall-connecting structure for external scaffolding, including wall-connecting rods, fasteners, a first spacer, embedded parts, and connecting rods. The embedded parts and the first spacer are respectively located on both sides of the template. The first spacer is sleeved and connected to the outside of the wall-connecting rod and located between the axle of the wall-connecting rod and the template. One end face of the first spacer is in contact with the axle, and the other end face is in contact with the side of the template. The wall-connecting rod passes through the first spacer and the template in sequence and is detachably connected to the embedded parts. After the concrete of the building is poured, the template and the first spacer are removed. The connecting rod is set parallel to the wall-connecting rod and is detachably connected to the wall-connecting rod through the fasteners. One end face of the connecting rod is in contact with the concrete wall of the building, and the other end extends freely. The connecting rod is connected to the scaffolding column through a clip.

[0008] Preferably, the fastener includes an upper fastener and a lower fastener, both of which have an inner arc surface. The inner arc surface of the upper fastener is in contact with the outer surface of the wall tie rod, and the inner arc surface of the lower fastener is in contact with the outer surface of the connecting rod.

[0009] Preferably, one end of the upper fastener is rotatably connected to one end of the lower fastener via a pin, and the other end of the upper fastener is detachably connected to the other end of the lower fastener via bolts.

[0010] Preferably, the embedded part includes a second spacer, a connector, and a seal. One end of the second spacer is attached to the side of the template, and the other end is fixedly connected to the connector. The end of the connector is fixedly connected to the seal. The second spacer is sleeved and connected to the outside of the wall tie member. After the wall tie member passes through the second spacer, it is detachably connected to the connector. The seal isolates the wall tie member from the concrete.

[0011] Preferably, the outer surface of the second spacer is provided with a plurality of circumferential friction parts and a plurality of longitudinal friction parts, and a flange part is provided at the end of the second spacer that is in contact with the template.

[0012] Preferably, the circumferential friction part is a ring of protrusions arranged around the center of the second spacer, and the longitudinal friction part is a strip-shaped protrusion arranged along the length direction of the second spacer.

[0013] Preferably, the connector has an internal thread and an external hexagonal boss, one end of the wall-connecting member has an external thread that is screwed into the internal thread, and the other end of the wall-connecting member has an external hexagonal boss.

[0014] Preferably, one end of the first spacer is provided with an outward-facing flange edge, which is attached to the template. The beneficial effects of adopting the above technical solution are as follows: This invention uses a first spacer and embedded parts to fix the wall ties to the formwork. During construction, simply drill holes in the formwork, then pass the wall ties sequentially through the first spacer, the formwork, and connect them to the embedded parts. The embedded parts are fixed to the formwork and will not shift or misalign. After the concrete is poured and the formwork and first spacer are removed, fasteners are used to connect the connecting rods to the wall ties. The connecting rods are then connected to the scaffolding columns using cross clips, thus completing the fixed connection between the scaffolding and the building. The entire operation is very convenient, improving both construction efficiency and quality.

[0015] After construction is completed, the wall ties, first spacers, connecting rods, and fasteners can be reused, leaving only the embedded parts to be cast in the concrete, which reduces the waste of construction materials and greatly reduces construction costs.

[0016] The second sleeve of the embedded part is equipped with a circumferential friction part and a longitudinal friction part. The circumferential friction part increases the tensile strength of the embedded part in the concrete, providing reliable tensile strength for the scaffolding; the longitudinal friction part increases the torsional resistance of the embedded part in the concrete, ensuring that the embedded part does not rotate with the wall tie when the wall tie is rotated and disassembled, allowing the wall tie to be smoothly unscrewed from the embedded part. At the same time, the embedded part does not rotate within the concrete, protecting the connection between the embedded part and the concrete, preventing rainwater from seeping in through the gap between the embedded part and the concrete, and avoiding the risk of water seepage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the state of the formwork after it has been removed and is connected to the scaffolding columns. Figure 2 This is a connection diagram when the embedded parts are fixedly connected to the template; Figure 3 yes Figure 1 A schematic diagram of the AA cross-sectional structure in the diagram; Figure 4 This is a schematic diagram of the cross-sectional structure of the embedded part; Figure 5 yes Figure 4 Schematic diagram of the BB cross-sectional structure in the middle; In the diagram: 1. Wall tie, 2. Fastener, 21. Upper fastener, 22. Lower fastener, 23. Bolt, 24. Pin, 3. First spacer, 4. Template, 5. Embedded part, 51. Second spacer, 511. Flange, 512. Circumferential friction part, 513. Longitudinal friction part, 52. Connector, 53. Seal, 6. Connecting rod, 7. Scaffolding, 8. Concrete beam. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] like Figure 1-2 As shown, the external scaffolding wall tie structure consists of wall tie members 1, fasteners 2, first spacer sleeves 3, and embedded parts 5. The wall tie members 1 use hexagonal head bolts, and the first spacer sleeve 3 is installed between the nut of the wall tie member 1 and the formwork 4. The first spacer sleeve 3 has a flange edge to increase the stress-bearing area and protect the formwork 4 from damage caused by the first spacer sleeve 3.

[0020] like Figure 4-5 As shown, the embedded part 5 includes a second spacer 51, a connector 52, and a seal 53. The second spacer 51 can be a casting, including a flange 511, a circumferential friction part 512, and a longitudinal friction part 513. Both the circumferential friction part 512 and the longitudinal friction part 513 are rectangular protrusions on the surface of the second spacer 51, designed to increase the connection force between the embedded part 5 and the concrete. The flange 511 serves the same function as the flange edge of the first spacer 3, protecting the formwork 4. The connector 52 is a nut, welded to the second spacer 51. The seal 53 is a thin-walled component, welded to the connector. The wall tie rod 1 is screwed to the connector 52, and the seal 53 seals the wall tie rod 1 within the connector 52, isolating it from the concrete. Alternatively, the second spacer 51 and the connector 52 can be cast integrally, with the internal thread of the connector 52 then machined.

[0021] like Figure 3As shown, the fastening component 2 includes an upper fastener 21, a lower fastener 22, a bolt 23, and a pin 24. One end of the upper fastener 21 and the lower fastener 22 are rotatably connected by the pin 24, and its structure is similar to a hinge with a shaft. The other end of the upper fastener 21 and the lower fastener 22 are fixedly connected by the bolt 23. The bolt 23 passes through the upper fastener 21 and the lower fastener 22 in sequence and is then screwed with a nut. One end of the connecting rod 6 rests against the concrete beam 8, and with the action of the lower fastener 22, the connecting rod 6 will not move. The connecting rod 6 is then fixedly connected to the scaffolding column 7 by a cross clamp, thus forming a fixed connection between the scaffolding column 7 and the concrete beam 8 of the building.

[0022] This wall-connecting structure is very simple to construct and use. For example... Figure 2 As shown, first, holes are drilled in the template 4. Then, the wall tie 1 passes through the first spacer 3 and the template 4 in sequence, and is tightened with the connector 52 of the embedded part 5, fixing the embedded part 5 to the template 4. Then, concrete is poured. After the concrete is poured, the wall tie 1 is rotated to remove it from the embedded part 5. The template 4 and the first spacer 3 are then removed. The wall tie 1 is then reconnected to the connector 52 of the embedded part 5. The wall tie 1 is then connected to the connecting rod 6 using the fastener 2. Finally, the connecting rod 6 is connected to the scaffold column 7 using a clamp, completing the connection between the embedded part 5 and the scaffold.

[0023] The company undertook the construction of Phase IV of a project, which consists of 11 residential buildings, 4 supporting service buildings, and an underground parking garage (plus a separate kindergarten), with a total construction area of ​​139,402.16 square meters, of which 75,894.86 square meters are above ground, 59,027.3 square meters are underground, and the kindergarten is 4,480 square meters. The residential buildings and the parking garage each have two underground levels. There are 16 buildings above ground, with the tallest building having 11 floors. This project utilized this connection structure in 5,375 units. Through the implementation of this project, the pre-embedded and connected components of this structure proved reliable, achieving the expected results. The application effect was excellent, and no safety or quality accidents occurred during construction, resulting in good economic and social benefits and earning widespread praise and a good social reputation.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A novel wall-connecting structure for external scaffolding, characterized in that, The system includes a wall tie (1), a fastener (2), a first spacer (3), an embedded part (5), and a connecting rod (6). The embedded part (5) and the first spacer (3) are respectively located on both sides of the template (4). The first spacer (3) is fitted and connected to the outside of the wall tie (1) and is located between the axle of the wall tie and the template (4). One end face of the first spacer (3) is in contact with the axle, and the other end face is in contact with the side of the template (4). The wall tie (1) passes through the first spacer in sequence. The spacer (3) is detachably connected to the template (4) and the embedded part (5). After the concrete is poured, the template (4) and the first spacer (3) are removed. The connecting rod (6) is set parallel to the wall tie (1). One end of the connecting rod (6) is attached to the concrete wall of the building, and the other end extends freely. The connecting rod (6) is detachably connected to the wall tie (1) through the fastener (2). The connecting rod (6) is connected to the scaffold column (7) through the cross clip.

2. The novel wall-connecting structure for external scaffolding according to claim 1, characterized in that, The fastener (2) includes an upper fastener (21) and a lower fastener (22). Both the upper fastener (21) and the lower fastener (22) have an inner arc surface. The inner arc surface of the upper fastener (21) is in contact with the outer surface of the wall tie rod (1), and the inner arc surface of the lower fastener (22) is in contact with the outer surface of the connecting rod (6).

3. The novel wall-connecting structure for external scaffolding according to claim 2, characterized in that, One end of the upper fastener (21) is rotatably connected to one end of the lower fastener (22) by a pin (24), and the other end of the upper fastener (21) is detachably connected to the other end of the lower fastener (22) by a bolt (23).

4. A novel wall-connecting structure for external scaffolding according to any one of claims 1-3, characterized in that, The embedded part (5) includes a second spacer (51), a connector (52), and a seal (53). One end of the second spacer (51) is attached to the side of the template (4), and the other end is fixedly connected to the connector (52). The end of the connector (52) is fixedly connected to the seal (53). The second spacer (51) is sleeved and connected to the outside of the wall tie rod (1). After the wall tie rod (1) passes through the second spacer (51), it is detachably connected to the connector (52). The seal (53) isolates the wall tie rod (1) from the concrete.

5. A novel wall-connecting structure for external scaffolding according to claim 4, characterized in that, The outer surface of the second spacer (51) is provided with several circumferential friction parts (512) and several longitudinal friction parts (513), and a flange part (511) is provided at the end of the second spacer (51) that is in contact with the template (4).

6. A novel wall-connecting structure for external scaffolding according to claim 5, characterized in that, The circumferential friction part (512) is a ring of protrusions arranged around the center of the second spacer (51), and the longitudinal friction part (513) is a strip-shaped protrusion arranged along the length of the second spacer (51).

7. A novel wall-connecting structure for external scaffolding according to claim 4, characterized in that, The connector (52) is provided with an internal thread and an external hexagonal boss. One end of the wall-connecting rod (1) is provided with an external thread, which is screwed into the internal thread. The other end of the wall-connecting rod (1) is provided with an external hexagonal boss.

8. A novel wall-connecting structure for external scaffolding according to claim 1, characterized in that, One end of the first spacer (3) is provided with an outward flange edge, which is attached to the template (4).

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