Scaffold wall connecting piece convenient to disassemble and assemble

Abstract

The utility model relates to a scaffold wall connecting piece convenient to dismount, including the embedded part for burying in the concrete structure, the stud bolt for passing through the concrete formwork of the cast-in-place concrete structure and the outer nut for the threaded connection with the outer end of stud bolt passing through the concrete formwork, the embedded part includes the cylinder portion, the ring head and the square tail, the square nut is equipped in the square tail, the inner end of stud bolt is inserted in the embedded part with the square nut threaded connection in the way of pluggable, still include the isolation cylinder for separating the ring head of embedded part and the concrete formwork, the isolation cylinder is in the way of detachable and is covered in stud bolt, and the outer diameter of isolation cylinder is greater than the inner diameter of cylinder portion of embedded part, the utility model is favorable to the concrete structure surface painting work of subsequent, and also reduces the risk that the ring head appears the risk of powder layer bulging, falling off because of thermal expansion and cold shrinkage.

Description

Technical Field

[0001] This utility model relates to a scaffolding wall tie that is easy to assemble and disassemble. Background Technology

[0002] Wall ties are used to connect scaffolding to the concrete structure of a building, thereby enhancing the overall stability of the scaffolding.

[0003] Existing wall tie structures include an improved novel wall tie structure disclosed in Chinese Invention Patent Application Publication CN 119664089 A, which includes an anchor for embedding in the wall. As can be seen from the accompanying drawings, the anchor includes a cylindrical part, an annular head at the front end of the cylindrical part, and a cuboid tail at the rear end of the cylindrical part.

[0004] Because the ring-shaped head is tightly attached to the wall formwork, after the concrete is poured and the wall formwork is removed, as follows: Figure 1 As shown, the annular head 100 may be exposed or even protrude from the outer surface 200 of the wall, which is not conducive to the painting of the outer surface of the wall. After a period of time, due to the thermal expansion and contraction of the annular head, the powder layer may bulge and fall off. Utility Model Content

[0005] The purpose of this utility model is to provide a scaffolding wall tie that is easy to assemble and disassemble, including an embedded part for embedding into a concrete structure, a double-ended screw for passing through a concrete formwork of the cast-in-place concrete structure, and an outer nut for threaded connection with the outer end of the double-ended screw that protrudes from the concrete formwork; both the inner and outer ends of the double-ended screw are threaded; the embedded part includes a cylindrical part, an annular head at the front end of the cylindrical part, and a cuboid tail at the rear end of the cylindrical part, with a cuboid nut inside the cuboid tail; the inner end of the double-ended screw is inserted into the embedded part in a pluggable manner and threadedly connected to the cuboid nut; it also includes an isolation cylinder for separating the annular head of the embedded part from the concrete formwork; the isolation cylinder is detachably fitted over the double-ended screw, and the outer diameter of the isolation cylinder is larger than the inner diameter of the cylindrical part of the embedded part.

[0006] This invention facilitates subsequent plastering of the external surface of concrete structures and reduces the risk of plaster bulging and peeling due to thermal expansion and contraction of the annular head. Attached Figure Description

[0007] Figure 1 A schematic diagram of the existing wall ties after the concrete formwork has been removed is shown;

[0008] Figure 2 A perspective view of the present invention is shown;

[0009] Figure 3 An exploded perspective view of this utility model is shown;

[0010] Figure 4 It shows Figure 2 Enlarged AA section view;

[0011] Figure 5 It shows in Figure 4 A schematic diagram showing the disassembled components based on the above.

[0012] Figures 6 to 9 A schematic diagram of the construction process of this utility model is shown;

[0013] Figure 10 The diagram shows the installation of the bolts, fasteners, and embedded parts of this utility model.

[0014] Icon labels:

[0015] 10 Concrete structure, 101 Surface of concrete structure;

[0016] 20 Embedded parts, 201 Cylindrical section, 202 Annular head, 203 Cuboid tail, 204 Cuboid nut;

[0017] 30 concrete formwork, 301 perforation;

[0018] 40 double-ended screw, the outer end of 401 double-ended screw, and the inner end of 402 double-ended screw;

[0019] 50 outer nut;

[0020] 60 isolation cylinder, 601 tail cylinder section, 602 head cylinder section;

[0021] 70 bolts, 80 scaffolding pipes, 90 fasteners. Detailed Implementation

[0022] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution.

[0023] like Figures 2 to 5 The wall tie for scaffolding shown is easy to assemble and disassemble. It includes an embedded part 20 for embedding in the concrete structure 10, a double-ended screw 40 for passing through the concrete formwork 30 of the cast concrete structure, and an outer nut 50 for threaded connection with the outer end 401 of the double-ended screw that passes through the concrete formwork. The concrete structure 10 described in this embodiment can be a wall or a beam.

[0024] Both the inner end 402 and the outer end 401 of the double-ended screw are threaded;

[0025] The embedded part 20 includes a cylindrical part 201, an annular head 202 at the front end of the cylindrical part 201, and a cuboid tail part 203 at the rear end of the cylindrical part 201. A cuboid nut 204 is provided inside the cuboid tail part 203.

[0026] The inner end 402 of the double-ended screw is inserted into the embedded part 20 in a pluggable manner and is threadedly connected to the cube nut 204. The embedded part 20 and the double-ended screw 40 are locked onto the concrete formwork by the outer nut 50.

[0027] It also includes an isolation cylinder 60 for separating the annular head 202 of the embedded part from the concrete formwork 30;

[0028] The isolation cylinder 60 is detachably fitted over the double-ended screw 40, and the outer diameter D1 of the isolation cylinder is larger than the inner diameter d1 of the cylindrical part of the embedded part to prevent concrete between the annular head 202 and the concrete template 30 from entering the cylindrical part 201.

[0029] This technical solution separates the annular head from the concrete formwork by adding an isolation cylinder. After the concrete is poured and the concrete formwork, double-ended bolts, and isolation cylinder are removed, the annular head is recessed into the concrete structure and will not protrude from the outer surface of the concrete structure. This is beneficial for the subsequent plastering of the outer surface of the concrete structure and also reduces the risk of plaster bulging and falling off due to thermal expansion and contraction of the annular head.

[0030] The outer surface of the isolation cylinder 60 is coated with a concrete anti-sticking agent. This technical solution facilitates the removal of the isolation cylinder from the concrete structure.

[0031] The concrete anti-adhesion coating can be formed by spraying concrete anti-adhesion onto the outer surface of the isolation cylinder, and the concrete anti-adhesion can be obtained using existing technology.

[0032] The isolation cylinder 60 has a tail cylinder 601 inserted into the cylindrical part 301 on the side facing the annular head 202. The outer diameter D2 of the tail cylinder is equal to the inner diameter d1 of the cylindrical part. This technical solution can further improve the sealing effect of the cylindrical part and further prevent concrete between the annular head and the concrete formwork from entering the cylindrical part.

[0033] The isolation cylinder 60 has a head cylinder part 602 that is inserted into the concrete formwork 30 on the side facing the concrete formwork 30, so as to position the embedded parts, double-ended screws and isolation cylinder on the concrete formwork.

[0034] The length of the head section 602 is less than the thickness of the concrete formwork 30, so as to avoid the head section protruding outside the concrete formwork and thus hindering the tightening of the outer nut.

[0035] like Figure 10 As shown, the embedded part 20 is equipped with bolts 70 and fasteners 90 for installing scaffolding pipe fittings 80;

[0036] The fastener 90 is fitted over the bolt 70, which is inserted into the embedded part 20 in a pluggable manner and threadedly connected to the cuboid nut 204, thereby facilitating the assembly and disassembly of the scaffolding. The structure of the fastener 90 can be achieved using existing technology.

[0037] The construction process of this utility model can be seen as follows:

[0038] like Figure 6 As shown, before pouring concrete, the embedded part 20 is first installed on the concrete formwork 30. The installation process of the embedded part 20 can be found in [reference needed]. Figure 7 First, the isolation cylinder 60 is fitted over the double-ended screw 40. Then, the inner end 402 of the double-ended screw is inserted into the embedded part 20 and screwed into the cuboid nut 204 to assemble the embedded part 20, the double-ended screw 40, and the isolation cylinder 60 together. Next, a through hole 301 is drilled in the concrete formwork 30. The diameter of the through hole 301 can be designed to be equal to or slightly larger than the outer diameter of the head cylinder 602, and the diameter of the through hole 301 is smaller than the outer diameter D1 of the isolation cylinder. Finally, the outer end 401 of the double-ended screw is passed out of the through hole 301 in the concrete formwork, and the head cylinder 602 of the isolation cylinder is inserted into the through hole 301. Then, the outer nut 50 is screwed onto the outer end 401 of the double-ended screw to lock the embedded part 20, the double-ended screw 40, and the isolation cylinder 60. At this time, the isolation cylinder 60 is clamped between the annular head 202 of the embedded part and the concrete formwork 30.

[0039] like Figure 8 As shown, concrete is poured into the concrete formwork 30 to form a concrete structure 10.

[0040] like Figure 9 As shown, after the concrete has cured, the outer nut 50 and the double-ended screw 40 are unscrewed, the concrete formwork 30 is removed, and the isolation cylinder 6 is removed. This causes the annular head 202 of the embedded part to be recessed into the concrete structure 10 and not to protrude from the outer surface 101 of the concrete structure.

[0041] like Figure 10 As shown (where Figure 10 (concealing the concrete structure), in Figure 9 Based on this, the bolt 70 is first passed through the fastener 90 and then inserted into the embedded part 20 and screwed into the cuboid nut 204. Then, the scaffolding pipe 80 is fastened by the fastener 90, thereby connecting the scaffolding with the concrete structure.

Claims

1. A scaffolding wall tie that is easy to assemble and disassemble, comprising an embedded part for embedding into a concrete structure, a double-ended threaded rod for passing through a concrete formwork of the cast-in-place concrete structure, and an outer nut for threaded connection with the outer end of the double-ended threaded rod that passes through the concrete formwork. The inner and outer ends of the double-ended screw are both threaded; The embedded part includes a cylindrical part, an annular head at the front end of the cylindrical part, and a cuboid tail at the rear end of the cylindrical part, wherein a cuboid nut is provided inside the cuboid tail. The inner end of the double-ended screw is inserted into the embedded part in a pluggable manner and is threadedly connected to the cuboid nut. Its features are: It also includes an isolation cylinder for separating the annular head of the embedded part from the concrete formwork; The isolation cylinder is detachably fitted onto the double-ended screw, and the outer diameter of the isolation cylinder is larger than the inner diameter of the cylindrical part of the embedded part.

2. The scaffolding wall tie that is easy to assemble and disassemble according to claim 1, characterized in that: The outer surface of the isolation cylinder is coated with a concrete anti-sticking agent.

3. The scaffolding wall tie that is easy to assemble and disassemble according to claim 1 or 2, characterized in that: The isolation cylinder has a tail section that is inserted into the cylindrical section on the side facing the annular head, and the outer diameter of the tail section is equal to the inner diameter of the cylindrical section.

4. The scaffolding wall tie that is easy to assemble and disassemble according to claim 3, characterized in that: The isolation cylinder has a head cylinder part that can be inserted into the concrete formwork on the side facing the concrete formwork. The length of the head section is less than the thickness of the concrete formwork.

5. The scaffolding wall tie that is easy to assemble and disassemble according to claim 3, characterized in that: The embedded parts are equipped with bolts and fasteners for installing scaffolding pipes; The fastener is fitted over the bolt, which is inserted into the embedded part in a pluggable manner and threadedly connected to the cuboid nut.

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