KR200307640Y1 - Pier construction lifter apparatus havng crane - Google Patents

Abstract

The present invention relates to a safety lift device for concrete pier installation, in particular comprising a lifting device 10 and the installation crane 20 attached to the lift device 10, the installation crane 20 is each a pipe member A plurality of poles (21a..21n) consisting of a plurality of pole poles 21 are laminated and coupled up and down, supported by a support wire 23 across the top of the pole pole 21, the top of the pole pole 21 Jib 22 pivotally connected to the pole 21 in the center, a trolley 24 carrying a load while moving along the jib 22, one end of each pole 21a of the pole 21 .21n) is fixed and the other end is guided to one side of the vertical frame 13 of the frame assembly (11) and the support bracket 25 is slidably connected up and down and the cylinder body is fixed to the base The upper end of the piston rod is connected to the lower pole 21a. Installed to support the bottom surface of the support bracket 25 is stretched operation installation crane 20 is made of a hydraulic cylinder 27 for lifting or lowering the pole pole 21 through the support bracket 25 is laid.

Description

Safety Lift Device for Concrete Bridge Pier Installation with Installation Crane {PIER CONSTRUCTION LIFTER APPARATUS HAVNG CRANE}

The present invention relates to a safety lift device for a concrete pier installation, and more particularly to a safety lift device attached to the crane used for installation and dismantling lift.

When constructing a concrete pier with a certain height, a safety lift device is used to install or assemble and dismantle materials such as reinforcing bars or formwork by standing upright around the construction pier.

Conventional safety lift device as described above has the advantage of ensuring the convenience and safety to install the material, such as formwork or reinforcing bars required for the construction of piers. However, since the conventional safety lift device is made by assembling frames of heavy steel frames, the tower crane is used when the height of the frame of the safety lift device needs to be gradually increased according to the height of the bridge during the construction of the bridge. The components of the tower crane must be moved to the installation position by the vehicle, but when the pier is to be installed in a deep mountain or valley where the vehicle is difficult to enter, there is a problem that the safety lift device cannot be installed because the crane cannot be installed. Since the roadway of the vehicle must be additionally made to carry, the air becomes long, and the construction cost of the pier increases.

Therefore, the present invention is not limited to the pier installation site, the frame can be installed and dismantled on its own without the help of separate installation equipment such as an auxiliary crane, and an installation crane for carrying relatively light materials is installed. An object of the present invention is to provide a safety lift device for construction of concrete piers.

In order to achieve the above object, the present invention provides a safety lift apparatus including a frame assembly in which a horizontal frame and a vertical frame are coupled to each other to surround a concrete pier to be constructed.

Each of the poles made of a plurality of poles made of a pipe member laminated up and down, and supported by a support wire across the upper end of the pole, the jib connected to the pole to pivot about the pole at the top of the pole, A trolley carrying a load body while moving along the jib, one end of which is fixed to each pole, and the other end of which is guided to one side vertical frame of the frame assembly and slidably moves up and down, and a cylinder body. The lower end is fixed to the base and the upper end of the piston rod is installed to support the bottom surface of the support bracket connected to the lower pole and includes an installation crane consisting of a hydraulic cylinder for lifting or lowering the pole through the support bracket when the telescopic operation. .

1 is a front view of a safety lift apparatus according to the present invention,

2 is a schematic plan view of a safety lift apparatus according to the present invention,

3 is a partial detailed view of the safety lift apparatus according to the present invention,

4 is a cross-sectional view taken along the line “A-A” of FIG. 3.

※ Explanation of code about main part of drawing ※

10: lift device 11: frame assembly

12: Horizontal frame 13: Vertical frame

13a: Guide

20: installation crane 21: pole

21a, .. 21n: Paul 23: support wire

22: jib 24: trolley

25: support bracket 26: guide roller

Base (B) 27: hydraulic cylinder

27a: piston rod

Hereinafter, an embodiment of the safety lifting device according to the present invention will be described in detail according to the accompanying drawings.

As shown in FIG. 1, the safety lift apparatus of the present invention is characterized by consisting of a lift apparatus 10 and an installation crane 20 attached to the lift apparatus 10.

As shown in FIG. 1, the lift apparatus 10 includes a frame assembly 11 installed to surround a concrete pier to be constructed, and the frame assembly 11 surrounds a concrete pier and surrounds a concrete pier. A plurality of horizontal frame 12 and the vertical frame 13 is installed in the longitudinal direction of the combined with each other.

As shown in FIG. 1, the installation crane 20 includes pole poles 21 formed by stacking up and down poles 21a and 21n and support wires across the upper end of the pole poles 21. A jib 22 supported by 23 and pivotally connected about the pole 21 at the upper end of the pole 21 and a trolley 24 carrying a load while moving along the jib 22. It includes.

Each pole 21a..21n of the pole stand 21 is supported by the vertical frame 13 by a support bracket 25. As shown in FIG. 3, each of the support brackets 25 is fixed at one end to each pole pole 21, and the other end is slidably moved up and down along the vertical frame 13.

The vertical frame 13 is formed of an approximately "H" shaped steel provided with a pair of guide pieces 13a at the end, and the support bracket 25 is used to guide the guide pieces 13a of the vertical frame 13. It is provided with a pair of guide rollers 26 moving along the clouds. Therefore, the pole 21 is supported by the frame assembly 11 in an upright state to slide up and down along the vertical frame (13).

On the other hand, the base (B) on which the lift device 10 is installed supports the lowermost support bracket 25 connected to the lowermost pole 21a from the lower side and stretches the whole pole pole 21 vertically when stretching. The hydraulic cylinder 27 which slides up and down along 13 is provided. The lower end of the hydraulic cylinder 27 is fixed to the base (B) and the upper end of the piston rod (27a) is to support the bottom surface of the support bracket 25 connected to the lower pole (21a).

The present invention configured as described above, if you want to further increase the height of the frame assembly installed at a constant height, first, the height of the installation crane by one more step as follows.

When the hydraulic cylinder is extended, the hydraulic cylinder raises the lower pole 21a by the stroke distance of the cylinder. In this case, the support bracket 25 moves upward along the vertical frame 13 while being supported by the vertical frame 13 as the guide roller 26 provided at one end thereof moves along the vertical frame 13. The poles 21 stacked on the upper side are pushed up.

In this state, a new pole is inserted between the ground and the bottom of the pole 21a lifted by the hydraulic cylinder 27, and then fixed to the lifted pole 21a so that the entire pole pole 21 is connected to the newly assembled pole. The height increases by the length. The additional vertical and horizontal frames are moved onto the already assembled frame assembly (11) by hooks (24b) connected by wires (24a) to jibs (22) provided on the upper side of the pole (21). As a result, the height of the frame assembly 11 is further increased.

As described above, the present invention is provided with an installation crane for extending the frame assembly on one side of the lift device to increase the height of the installation crane without using a separate general tower crane when connecting the additional frame on the frame assembly Additional frames can be attached and installed easily. Therefore, it is not necessary to make a vehicle entry path for transporting a separate general tower crane, and in particular, it can be installed in a deep mountain or valley where vehicle entry is difficult.

Claims (2)

In the safety lift apparatus including a frame assembly 11 formed by coupling the horizontal frame 12 and the vertical frame 13 to each other to surround the concrete piers, Each of the poles 21a..21n, each of which is formed of a pipe member, is stacked up and down and coupled to the pole pole 21 and supported by a support wire 23 across the upper end of the pole pole 21. A jib 22 pivotally connected to the pole 21 at an upper end of the pole 21, a trolley 24 carrying a load while moving along the jib 22, and one end of the pole 21; It is fixed to each pole (21a..21n), the other end is guided to one side of the vertical frame 13 of the frame assembly (11) and the support bracket (25) which is slidably connected up and down and the cylinder body is It is fixed to the base and the upper end of the piston rod is installed to support the bottom of the support bracket 25 connected to the lower pole (21a) to extend or lower the pole pole 21 through the support bracket 25 while stretching operation. Mounting crane made of hydraulic cylinder (27) Safety lift device for concrete bridge piers installation crane is characterized in that it comprises a 20). According to claim 1, wherein the vertical frame (13) is provided with a pair of guide pieces (13a) at one end, the support bracket 25 is clouded on each guide piece (13a) of the vertical frame (13) Safety lift device for installation of concrete piers on which the installation crane is mounted, characterized in that the guide roller 26 is guided while contacting.