KR101834329B1 - Apparatus for supporting suspension scaffold pole - Google Patents

Abstract

An apparatus for supporting a scaffolding pole (30) suspended in an H beam (15) of a deck comprising: a clamping means (40) capable of engaging a flange of the H beam (15) And the tightening means 40 converts the rotational force of the handle 47 connected to the operating rod 45 into an actuating force for clamping or unclamping.
Accordingly, it is possible to secure the promptness and safety of joining the poles and the rails to the deck located at a high place in installing and disassembling the external work scaffolds based on the modular scaffolding and the inner hanger scaffolding.

Description

[0001] Apparatus for supporting suspension scaffold pole [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold for installation / operation / inspection of an offshore plant, and more particularly, to a scaffold scaffold for supporting a hanging scaffold for easily accessing and dismounting a scaffold for external work.

Typically, the scaffold system of an offshore plant is divided into an external scaffold installed vertically and an internal scaffold installed horizontally. In the case of a three-stage modular offshore plant, the height of one stage is approximately 5 to 6 meters, and the total height is approximately 15 to 20 meters on the basis of a three-stage module. In total, several tens of thousands of footsteps are required. Under such design conditions, there is an urgent need to improve the convenience of the footrest installation.

Korean Patent Publication No. 0598028 (Prior Art 1) and Korean Patent Laid-Open Publication No. 2014-0135169 (Prior Art 2) are known as prior art documents which can be referred to in connection with the installation of scaffolding scaffolds.

In the prior art reference 1, a clamp body is integrally formed at the other end of the footrest support, and a vertical plate having an inclined plate and a rubber pad is fixedly installed on the inner front and rear surfaces of the clamp body. A guide pin is interposed between the inclined plate and the vertical plate And a clamping plate having a rubber pad on its inner surface is inserted and installed so as to be movable forward and backward. Therefore, it is expected that the time and effort required for the installation and disassembly of the scaffolds are shortened.

Prior Art 2: a fastening structure configured to be connected to a structure; And a hanging connector assembly removably engaged with the fastening structure and configured to at least partially support at least a portion of the hanging scaffold system. Thereby, an effect of facilitating access to the suspension connector system (s) is expected while maintaining the constant operation of the structure.

According to the above-mentioned prior art documents, it is necessary to secure the convenience of installing a scaffolding footplate. However, there is a lot of room for improvement in order to increase the efficiency of equipment / water saving by applying it to an offshore plant scaffolding system.

1. Korean Registered Patent No. 0598028 entitled " Suspension Scaffolding Stand for Hull Block Work "(Open date: Jun. 23, 2004) 2. Korean Unexamined Patent Publication No. 2014-0135169 entitled " Suspension connector system configured for use with a present scaffolding, and related method "(Publication date: November 25, 2014).

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and to provide a method of assembling a scaffold for external work based on a modular scaffold and a hanger scaffold for internal use, And to provide a suspension bracket for a scaffold for securing promptness and safety.

In order to achieve the above object, the present invention provides an apparatus for supporting a scaffold pole suspended in an H beam of a deck, the pole comprising a tightening means engageable with a flange of the H beam at the top, And the rotational force of the handle connected to the base is converted into the operating force for clamping or unclamping.

In the first embodiment of the present invention, the tightening means includes a fixed base fixed to the upper end of the pole, a movable base mounted on the pole so as to be movable up and down, a spiral shaft mounted between the movable base and the base, And a worm gear for transmitting the rotational force of the worm gear to the spiral shaft.

In a modification of the present invention, at least one of the fixed table and the movable table is further provided with a magnet for applying a predetermined adhering force to the H beam.

According to another modification of the present invention, at least one of the fixing table or the movable table is further provided with a clamp for connecting the brace.

As a second embodiment of the present invention, the tightening means includes a pair of movable tables mounted on the upper end of the pole so as to be horizontally movable, a spiral shaft connecting the movable plates on both sides with a double spiral, And an operation shaft which is mounted via a gear.

As described above, according to the present invention, an external work scaffold can be easily installed and disassembled based on a modular footrest and an inner hanging footrest so that a quick and safe approach to the worker can be achieved.

1 is a schematic view showing a scaffold system of an offshore plant to which the present invention is applied;
FIG. 2 is a schematic view showing a main part of a scaffold system according to the present invention. FIG.
Fig. 3 is a configuration diagram showing a first embodiment of a supporting apparatus according to the present invention
4 is a configuration diagram showing a second embodiment of a supporting apparatus according to the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes a device for supporting a scaffold pole 30 suspended in an H beam 15 of a deck. FIG. 1 illustrates a state where a multi-layered deck (DK) is provided in a marine plant composed of three stages of production modules (MD). In the method of the present invention, the conventional external scaffold 11 and internal scaffold 12 are reduced or eliminated. Utilizes but is not necessarily limited to a number of H beams 15 included in the deck.

In FIG. 1, reference numerals SF denote the positions of the footrests for design applied to the scaffold of the present invention.

According to the present invention, a scaffolding module 20, which is formed in a multi-layer structure to reduce or replace the external scaffold 11, is installed adjacent to the side surface of the deck to assist movement of personnel and materials. The scaffolding module 20 may include a fixture bound to a deck or the like of an offshore structure, and a ladder for lifting and lowering the operator.

According to the invention, the pole (30) comprises a clamping means (40) which can engage with the flange of the H beam (15) at the top. The pole unit 30 has a steel pipe structure for supporting a plurality of rails 32 and a foot plate 34 at a lower end thereof and has tightening means 40 so as to be easily engaged with and separated from the flange of the H beam 15. The H beam 15, which is a standard product, has a flange protruding to the upper and lower ends of a plate-shaped web. In consideration of the vertical deck interval of the offshore plant, the distance from the working position to the upper H beam 15 is at least 2.5 m. Therefore, the tightening means 40 is used to easily fix the pole 30 to the H beam 15 without any additional equipment such as a ladder.

According to the present invention, the tightening means (40) has a structure for converting the rotational force of the handle (47) connected to the operating member (45) into an actuating force for clamping or unclamping. The operating stand 45 is mounted on the pole 30 at a height at which the operator can easily turn the handle 47 by hand. The rotational force of the handle 47 is input to the inside of the operating rod 45 through a concentricly connected handle shaft and is transmitted to the upper end along the pole 30 to clamp or unscrew the flange of the H beam 15 And is outputted as a clamping operating force.

The fastening means 40 includes a fastening base 41 fixed to the upper end of the pole 30 and a fastening base 41 fixed to the pole 30 to be vertically movable A spiral shaft 51 mounted between the movable table 42 and the operation table 45 and a worm gear 53 for transmitting the rotational force of the handle 47 to the spiral shaft 51 .

Referring to FIG. 3, the first embodiment including the fixing table 41, the movable table 42, the spiral shaft 51, the worm gear 53, and the like can be implemented. The fixing table 41 and the movable table 42 protrude from the pole 30 so as to be vertically contactable with the flange of the H beam 15. The movable base 42 is mounted so as to be able to vary the distance in a state of being opposed to the fixed base 41. The spiral shaft 51 is supported by the operation member 45 downwardly, and at the same time, is engaged with the movable member 42 by a spiral. The drive shaft of the handle 47 is connected via a worm gear 53 so as to be orthogonal to the spiral shaft 51. The worm of the worm gear 53 is fixed concentrically to the drive shaft, and the worm wheel is fixed concentrically with the spiral shaft 51.

Accordingly, the movable base 42 is clamped while approaching the fixed base 41 in accordance with the direction in which the handle 47 is rotated, or the movable base 42 is moved away from the fixed base 41 to unclamp. It is possible to increase the engaging force of the clamping by the function of preventing the worm gear 53 from decelerating and reversing, or to prevent the clamping force from being unclamped arbitrarily.

As a modification of the present invention, at least one of the fixing table 41 and the movable table 42 is further provided with a magnet for applying a predetermined adhering force to the H beam 15. The magnetic force of the magnet is utilized so that the posture of the pole 30 does not fluctuate while the handle 47 is turned while the operator stands on the H beam 15. The magnet is configured to apply a magnetic force (Gauss) within a range in which the operator can manually detach and attach. A magnet is embedded so as not to protrude from the fixed base 41 or the movable base 42. [

On the other hand, it is possible to add a mag switch, which is not shown in the drawing, to turn on and off the magnetic force by a lever, and a mechanism for remotely operating the lever.

As another modification of the present invention, at least one of the fixing table 41 or the movable table 42 is further provided with a clamp 36 for connecting the bracing. A brace (not shown) may be connected in an inclined direction for structural stability in the process of connecting the vertical pole 30 and the horizontal rail 32 on the H beam 15 of the deck. Braces commonly use steel pipes. The clamp 36 can use a known ascending clamp in addition to the example of FIG. 3 for the inclined connection of the braces.

As a second embodiment of the present invention, the tightening means 40 includes a pair of movable belts 42 mounted on the upper end of the pole 30 so as to be movable in the left and right direction, a pair of movable belts 42, And an operating shaft 56 mounted between the spiral shaft 51 and the handle 47 through a bevel gear 58. The spiral shaft 51 is connected to the spiral shaft 51 via the bevel gear 58,

Referring to FIG. 4, a second embodiment including the movable table 42, the spiral shaft 51, the operating shaft 56, the bevel gear 58, and the like can be implemented. An operation table 45 is mounted on the upper end of the pole table 30 and a movable table 42 and a spiral shaft 51 are mounted on the operation table 45. A pair of movable belts (42) are exposed on the upper side and are slidably supported on the operation table (45) on the lower side. The spiral shaft 51 is engaged with the left spiral and the right spiral on the pair of operating members 45, thereby simultaneously causing the opposite movement. The operation shaft 56 is rotatably received in the pole 30 and is connected to the drive shaft of the spiral shaft 51 and the handle 47 via upper and lower bevel gears 58.

Thus, the movable base 42 on both sides approaches and simultaneously clamps or unclamps at the same time according to the direction in which the handle 47 is turned. When the worm gear 53 is used instead of the bevel gear 58 between the drive shaft of the handle 47 and the spiral shaft 51, it is possible to prevent the clamping force from being increased or unclamped arbitrarily.

A pole 30 is provided on the lower side of the H beam 15 by means of the tightening means 40 and the rail 32 is coupled to the pole 30 by means of a clamp 36, 32 by pushing the footrest 34 sequentially.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: Scaffolding system 11: External scaffolding
12: inner scaffold 15: H beam
20: foot module 30: pole
32: rail 34: foot plate
36: clamp 40: tightening means
41: fixed base 42: movable base
45: Operational stand 47: Handle
51: spiral shaft 53: worm gear
55: support member 56: operating shaft
58: Bevel gear

Claims (5)

delete An apparatus for supporting a scaffold pole (30) suspended in an H beam (15) of a deck comprising:
The pole (30) has tightening means (40) which can engage with the flange of the H beam (15) at the top,
The tightening means (40) converts the rotational force of the handle (47) connected to the operating rod (45) to a actuating force for clamping or unclamping,
The tightening means 40 includes a fixing table 41 fixed to the upper end of the pole 30, a movable table 42 mounted on the pole 30 so as to be movable up and down below the fixing table 41, And a worm gear (53) for transmitting the rotational force of the handle (47) to the spiral shaft (51). The method of claim 2,
Characterized in that at least one of the fixing table (41) or the movable table (42) further comprises a magnet for applying a predetermined adhering force to the H beam (15). The method of claim 2,
Wherein at least one of the fixing table (41) or the movable table (42) further comprises a clamp (36) for connecting the bracing. An apparatus for supporting a scaffold pole (30) suspended in an H beam (15) of a deck comprising:
The pole (30) has tightening means (40) which can engage with the flange of the H beam (15) at the top,
The tightening means (40) converts the rotational force of the handle (47) connected to the operating rod (45) to a actuating force for clamping or unclamping,
The tightening means 40 includes a pair of movable belts 42 mounted on the upper end of the pole 30 so as to be movable left and right, a helical axis 51 connecting the movable belts 42 on both sides with a double helix, And an operating shaft (56) mounted between the shaft (51) and the handle (47) via a bevel gear (58).

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