Scaffolding

Abstract

The present invention relates to a scaffolding joint 10 having one end connected to a wall surface 3 and the other end connected to a scaffolding 1 to fix the scaffolding 1 to the wall surface 3, the scaffolding joint 10 comprising: a bracket 20 fixed to the wall surface 3 by fixing means 4, 5; a threaded shaft member 30 having one end connected to the bracket 20 and having a male thread portion 31 formed on an outer circumferential surface; an outer pipe 40 having an insertion opening 41 formed at one end into which the other end of the threaded shaft member 30 is inserted, an end face 43 of the other end being closed, and having a female thread portion 42 formed on an inner circumferential surface which screws into the male thread portion 31 of the threaded shaft member 30; and an electric wrench 70 protruding from the center of the end face 43 of the outer pipe 40 outward in the longitudinal direction of the outer pipe 40, with a diameter expanding at the protruding tip. and a clamp 60 having one side rotatably coupled to a clamp coupling groove 53 formed by an end face 43 of the external pipe 40, the pipe rotation shaft 50 and the hexagonal head 51 of the pipe rotation shaft 50, and the other side detachably coupled to a scaffolding pipe 2 of the scaffolding 1, wherein when an electric wrench 70 is inserted into the hexagonal head 51 of the pipe rotation shaft 50 and rotated, the external pipe 50 rotates around the pipe rotation shaft 50 and moves and expands along the longitudinal direction of the screw shaft member 30, thereby adjusting the distance between the wall surface 3 and the scaffolding 1.

Description

[Technical field]

[0001] The present invention relates to a scaffolding tie that fixes the scaffolding to a wall surface so as to maintain a constant distance between the scaffolding and the wall surface, and more particularly to a scaffolding tie that can be easily and quickly adjusted in length according to the distance between the scaffolding and the wall surface, can be rotated and fixed according to the position of the scaffolding pipe, and can be easily installed on the scaffolding to suit various conditions at the site. [Background technology]

[0002] Generally, when constructing a building, a scaffold with pipes vertically and horizontally installed is temporarily set up on the outside of the exterior wall for exterior construction work, and a work scaffold board that workers can stand on is set up at the work position of the scaffold. This type of scaffold is sometimes set up without being connected to the building, but when the height of the scaffold is high, the pipes that make up the scaffold are fixed to the wall of the building for safety reasons.

[0003] Conventionally, scaffolding has been fixed to a wall surface at a certain distance using a scaffolding tie. Such a scaffolding tie includes a body of a certain length, a fixing plate provided at one end of the body and connected to an anchor bolt embedded in the wall surface, and a clamp provided at the other end of the body and detachably connected to a scaffolding pipe.

[0004] However, in exterior construction, the distance between the scaffolding and the wall must be adjusted depending on the size and shape of the exterior wall material, but the above-mentioned conventional scaffolding ties have a problem that the distance between the scaffolding and the wall cannot be adjusted freely because the main body has a fixed length. Also, since the main body of the scaffolding ties is integrally formed with the fixed plate and the main body always protrudes vertically forward from the fixed plate fixed to the wall, there is a problem that the scaffolding pipe cannot be fastened to the scaffolding pipe when the scaffolding pipe is located to the side, above, or below the clamp of the scaffolding ties depending on the installation situation. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Korean Registered Utility Model No. 20-0180006 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made to solve the problems described above, and an object of the present invention is to provide a scaffolding connector that is easy to install, the length of which can be easily and quickly adjusted according to the distance between the scaffolding and the wall surface, thereby improving convenience in construction and improving productivity by shortening work time, and that can be easily connected to the scaffolding pipe by rotating it even if the relative position between the anchor bolt and the scaffolding pipe changes depending on the on-site conditions. [Means for solving the problem]

[0007] According to a feature of the present invention, a scaffolding joint 10 having one end connected to a wall surface 3 and the other end connected to a scaffolding 1 for fixing the scaffolding 1 to the wall surface 3 comprises a bracket 20 fixed to the wall surface 3 by fixing means 4, 5, a threaded shaft member 30 having one end connected to the bracket 20 and a male screw portion 31 formed on an outer circumferential surface, an outer pipe 40 having an insertion opening 41 formed at one end into which the other end of the threaded shaft member 30 is inserted, an end face 43 of the other end being closed, and a female screw portion 42 formed on an inner circumferential surface to screw into the male screw portion 31 of the threaded shaft member 30, and a tool coupling portion 43 of an electric wrench 70 protruding outward in the longitudinal direction of the outer pipe 40 from the center of the end face 43 of the outer pipe 40, the protruding tip having an expanded diameter, and a clamp 60 having one side rotatably coupled to a clamp coupling groove 53 formed concavely by an end face 43 of the external pipe 40, the pipe rotating shaft 50 and the hexagonal head 51 of the pipe rotating shaft 50, and the other side detachably coupled to a scaffolding pipe 2 of the scaffolding 1, wherein when an electric wrench 70 is inserted into the hexagonal head 51 of the pipe rotating shaft 50 and rotated, the external pipe 50 rotates around the pipe rotating shaft 50 and moves and expands along the longitudinal direction of the screw shaft member 30, thereby allowing the length to be adjusted according to the gap between the wall surface 3 and the scaffolding 1.

[0008] According to another feature of the present invention, there is provided a scaffolding joint, characterized in that the bracket 20 includes a support plate 21 having a fitting hole 22 formed therein into which fixing means 4, 5 fixed to a wall surface 3 are fitted, and a pair of side plates 23, 24 extending vertically from both sides of the support plate 21, and one end of the screw shaft member 30 is hingedly connected by a hinge pin 25 that crosses the side plates 23, 24 of the bracket 20. Effect of the Invention

[0009] As described above, according to the present invention, there is provided a scaffolding joint 10 including a bracket 20 fixed to a wall surface 3, a threaded shaft member 30 having one end connected to the bracket 20 and a male thread portion 31 formed on its outer circumferential surface, an external pipe 40 having an insertion opening 41 formed at one end through which the threaded shaft member 30 is inserted and a female thread portion 42 formed on its inner circumferential surface, a pipe rotating shaft 50 having a hexagonal head 51 at its tip and a clamp 60 connected to the pipe rotating shaft 50 and connected to the scaffolding pipe 2. When the pipe rotating shaft 50 is rotated using an electric wrench 70 having a rotatable tool coupling portion 71 having a hexagonal groove 72 into which the hexagonal head 51 of the pipe rotating shaft 50 is inserted, the external pipe 40 is rapidly rotated by the threaded shaft member 30 around the pipe rotating shaft 50 and moves in the longitudinal direction of the threaded shaft member 30, thereby allowing the scaffolding joint 10 to be easily and quickly extended or retracted. In this way, the other end of the external pipe 40 is provided with the pipe rotating shaft 50 at the closed end surface 43, and by rotating the pipe rotating shaft 50 using the electric wrench 70, the external pipe 40 rotates and expands and contracts along the longitudinal direction of the screw shaft member 30, so that the scaffolding tie 10 can be easily and quickly expanded and contracted, and the scaffolding 1 can be easily and quickly fixed to the wall surface 3 in accordance with the required gap between the wall surface 3 and the scaffolding 1. This allows the gap between the wall surface 3 and the scaffolding 1 to be easily and quickly adjusted, which has the advantage of improving work convenience and shortening work time.

[0010] Furthermore, one end of the screw shaft member 30 of the scaffolding tie 10 is rotatably mounted on the bracket 20 by the hinge pin 25. Therefore, even if the positions of the bracket 20 of the scaffolding tie 10 fixed to the wall surface 3 and the scaffolding pipe 2 of the scaffolding 1 are not aligned depending on the installation conditions at the site, the screw shaft member 30 can be rotated by the bracket 20 to connect the clamp 60 of the scaffolding tie 10 to the scaffolding pipe 2. Therefore, even if the relative positions of the scaffolding pipe 2 of the scaffolding 1 and the bracket 20 fixed to the wall surface 3 change depending on various installation conditions at the site, the scaffolding tie 10 can be easily connected to the scaffolding 1. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing one embodiment of a scaffolding tie according to the present invention. [Diagram 2] FIG. 2 is a side view of the embodiment. [Diagram 3] FIG. 3 is a diagram showing the scaffolding tie of the embodiment being extended or contracted by an electric wrench. [Figure 4] FIG. 4 is a diagram showing the state in which the scaffold tether of FIG. 3 has been stretched and attached to the scaffold. [Diagram 5] FIG. 5 is a diagram showing the connection of scaffold tethers according to the position of the scaffold in the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The above objects, features and advantages of the present invention will become more apparent from the following detailed description. The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0013] 1 to 5 are diagrams showing a scaffolding joint according to one embodiment of the present invention. As shown in the figures, the scaffolding joint 10 according to one embodiment of the present invention includes a bracket 20 fixed to a wall surface 3, a threaded shaft member 30 having one end connected to the bracket 20, an external pipe 40 to which the other end of the threaded shaft member 30 inserted through an insertion opening 41 at one end is screwed, a pipe rotation shaft 50 provided at the center of the other end face of the external pipe 40, and a clamp 60 rotatably connected to the pipe rotation shaft 50 and connected to a scaffolding pipe 2 of a scaffolding 1.

[0014] The bracket 20 is fixed to the wall surface 3 by fixing means 4, 5. The fixing means 4, 5 are exemplified as consisting of an anchor bolt 4 embedded in the wall surface 3 and a nut 5 fastened to the anchor bolt 4, but may be in various forms capable of fixing the bracket 20 to the wall surface 3.

[0015] A scaffolding joint bracket 20 according to one embodiment of the present invention may include a support plate 21 having a fitting hole 22 formed therein into which fastening means 4, 5 fixed to a wall surface 3 are fitted, and a pair of side plates 23, 24 extending vertically from both side surfaces of the support plate 21. As shown in Fig. 1 and Fig. 3, in a state in which the fitting hole 22 of the support plate 21 of the bracket 20 is fitted into the anchor bolt 4, the nut 5 is tightened onto the anchor bolt 4 to fix the bracket 20 to the wall surface 3. At this time, the support plate 21 may be fixed to the wall surface 3 so that the side plates 23, 24 of the support plate 21 are positioned left and right, up and down, or in various other positions.

[0016] The threaded shaft member 30 has a predetermined length, and one end is coupled to the bracket 20. A male thread portion 31 is formed on the outer circumferential surface of the threaded shaft member 30, and the threaded shaft member 30 may be solid or may be pipe-shaped with a hollow portion formed inside.

[0017] The screw shaft member 30 of the scaffolding joint according to one embodiment of the present invention may be hinged by a hinge pin 25 whose one end crosses the side plates 23, 24 of the bracket 20. This allows the screw shaft member 30 to rotate around the hinge joint part at one end. At this time, since the side plates 23, 24 of the bracket 20 may be located at various positions such as left and right or up and down of the support plate 21, the hinge pin 25 may be provided in a horizontal direction, a vertical direction, or even various other directions. This allows the screw shaft member 30 to rotate around the hinge joint part of the bracket 20 in more various directions as well as horizontal and vertical directions, and the screw shaft member 30 can be rotated and joined according to various positions and installation directions of the scaffolding pipe 2 of the scaffolding 1.

[0018] The external pipe 40 has an insertion port 41 formed on one end surface so that the other end of the screw shaft member 30 can be inserted, and a female screw portion 42 into which the male screw portion 31 of the screw shaft member 30 is screwed is formed on the inner peripheral surface. As shown in FIG. 2, the female screw portion 42 is formed only on one end of the external pipe 40 close to the insertion port 41. When the external pipe 40 is rotated by the screw shaft member 30, it moves along the longitudinal direction of the screw shaft member 30, and the scaffolding joint 10 itself expands and contracts. Then, the end surface 43 of the other end of the external pipe 40 is closed, and a coupling hole 44 is formed in the center of the end surface 43.

[0019] The pipe rotating shaft 50 protrudes from the center of the end surface 43 of the external pipe 40 toward the outside in the longitudinal direction of the external pipe 40, and a hexagonal head 51 with an expanded diameter is provided at the protruding tip. As shown in FIG. 2, the pipe rotating shaft 50 is a bolt with a hexagonal head 51, and is connected to the connection hole 44 of the end surface 43 of the external pipe 40, and the outer circumferential surface is welded 52 to the inner surface of the end surface 43. The hexagonal head 51 is configured to be inserted into the hexagonal groove 72 of the tool connection part 71 of the electric wrench 70, which is rotatably provided with a tool connection part 71 having a hexagonal groove 72 formed at the tip. The end surface 43 of the external pipe 40, the pipe rotating shaft 50, and the hexagonal head 51 of the pipe rotating shaft 50 form a clamp connection groove 53 recessed inward. The clamp 60 has one side rotatably coupled to the pipe rotating shaft 50 and the clamp coupling groove 53, and the other side coupled to the scaffold pipe 2 of the scaffold 1. As shown in Figs. 1 and 2, the clamp 60 may include a clamp body 61 rotatably coupled to the clamp coupling groove 53 of the pipe rotating shaft 50, a clamp cover 62 that rotates around the rotation shaft 63 on one side of the clamp body 61 to enclose the scaffold pipe 2 of the scaffold 1, and a fastening means 64 that is hinged to the other side of the clamp body 61 and fastened to the clamp cover 62 to fix the inserted scaffold pipe 2. The clamp body 61 is formed with a through hole 61a through which the pipe rotating shaft 50 passes, and the hexagonal head 51 of the pipe rotating shaft 50 is hooked around the through hole 61a of the clamp body 61.

[0020] In the scaffolding joint 10 according to an embodiment of the present invention configured as described above, the anchor bolt 4 of the wall surface 3 is fitted into the fitting hole 22 of the support plate 21 of the bracket 20, and the nut 4 is tightened to fix the bracket 20 to the wall surface 3, as shown in FIG. 3. Then, the clamp 60 is connected to the scaffolding pipe 2 of the scaffolding 1 provided away from the wall surface 3. At this time, if the distance between the wall surface 3 and the scaffolding 1 changes, as shown in FIG. 3, the hexagonal head 51 of the pipe rotating shaft 50 is inserted into the hexagonal groove 72 of the tool connecting part 71 of the electric wrench 70 before connecting the clamp 60 to the scaffolding 1, and the tool connecting part 71 is rotated, so that the external pipe 40 is rotated around the pipe rotating shaft 50 and moves along the longitudinal direction of the screw shaft member 30, and the scaffolding joint 10 itself expands and contracts, and the scaffolding 1 can be fixed to the wall surface 3 as shown in FIG. 4.

[0021] In this way, since the external pipe 40 can be rotated more quickly using the electric wrench 70 compared to when the worker grips and manually rotates the external pipe 40, the worker can easily and quickly rotate the external pipe 40 without applying force to extend or retract the scaffolding tie 10, and therefore the scaffolding tie 10 can be easily and quickly extended or retracted according to the required gap between the wall surface 3 and the scaffolding 1 to fix the scaffolding (1) to the wall surface 3. This allows the scaffolding tie 10 to be easily and quickly adjusted according to the gap between the wall surface 3 and the scaffolding 1, which has the advantage of improving work convenience and shortening work time.

[0022] Furthermore, as shown in Figure 5, when the anchor bolt 4 embedded in the wall surface 3 and the scaffolding pipe 2 of the scaffolding 1 are not positioned on a horizontal or vertical line, the clamp 60 can be connected to the scaffolding pipe 2 of the scaffolding 1 by rotating the screw shaft member 30 of the scaffolding connector 10 around the hinge connection portion of the bracket 20, so that the scaffolding 1 can be easily fixed to the wall surface 3 even if the installation position of the scaffolding 1 changes depending on the work environment, terrain, etc.

[0023] The present invention described above is not limited to the above-mentioned embodiments and the accompanying drawings, and it is apparent to those having ordinary skill in the art to which the present invention pertains that various substitutions, modifications and changes are possible within the scope not departing from the technical idea of ​​the present invention. [Explanation of symbols]

[0024] 1: Scaffolding 2: Scaffolding pipe 3: Wall 4: Anchor bolt 10: Scaffolding 20: Bracket 30: Screw shaft material 40: External pipe 50: Pipe rotating shaft 51: Polygonal head 60: Clamp 70: Electric wrench

Claims

1. A scaffolding tie (10) having one end connected to a wall surface (3) and the other end connected to a scaffolding (1) for fixing the scaffolding (1) to the wall surface (3), a bracket (20) fixed to the wall surface (3) by fixing means (4, 5); and a threaded shaft member (30) having one end connected to the bracket (20) and an external thread portion (31) formed on an outer circumferential surface thereof; an outer pipe (40) having an insertion opening (41) formed at one end thereof, into which the other end of the threaded shaft member (30) is inserted, an end face (43) of the other end being closed, and having a female thread portion (42) formed on an inner peripheral surface thereof to be screwed into the male thread portion (31) of the threaded shaft member (30); a pipe rotating shaft (50) that protrudes from the center of the end surface (43) of the outer pipe (40) toward the outside in the longitudinal direction of the outer pipe (40), has a diameter expanding at the protruding tip, and is provided with a hexagonal head (51) that is inserted into a hexagonal groove (72) of a tool coupling portion (71) of an electric wrench (70); a clamp (60) having one side rotatably coupled to a clamp coupling groove (53) formed in a concave shape on a side surface of the pipe rotating shaft (50) between the end surface (43) of the external pipe (40) and the hexagonal head (51) of the pipe rotating shaft (50) while the end surface (43) of the external pipe (40) and the hexagonal head (51) are spaced from each other, and the other side detachably coupled to a scaffold pipe (2) of the scaffold (1); This scaffolding joint is characterized in that when an electric wrench (70) is inserted into the hexagonal head (51) of the pipe rotating shaft (50) and rotated, the external pipe (50) is rotated around the pipe rotating shaft (50) and moves along the longitudinal direction of the screw shaft member (30) to expand and contract, thereby adjusting the distance between the wall surface (3) and the scaffolding (1).

2. 2. The scaffolding joint according to claim 1, wherein the bracket (20) includes a support plate (21) having a fitting hole (22) formed therein into which a fixing means (4, 5) fixed to a wall surface (3) fits, and a pair of side plates (23, 24) protruding forward from both side surfaces of the support plate (21), and one end of the screw shaft member (30) is hinged by a hinge pin (25) that crosses the side plates (23, 24) of the bracket (20).

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