Limiting type cable bent tower main rib sheet loading and lifting appliance

Abstract

The utility model relates to a limiting type cable bent tower main rib piece lifting appliance which comprises two vertical rods, a lower transverse rod welded between the lower ends of the two vertical rods, an upper transverse rod welded between the upper ends of the two vertical rods, a lifting lug welded at the upper end of each vertical rod, a main rib supporting groove formed in the top of the lower transverse rod in the longitudinal direction, and a plurality of U-shaped main rib buckles welded on the outer side of the top face of the upper transverse rod at equal intervals. An opening of each main rib buckle faces the outer side of the upper cross rod, pin holes penetrating through the upper cross rod in the longitudinal direction are formed in the two ends of each main rib buckle, a plurality of limiting sleeves are welded to the inner side of the top face of the upper cross rod, a movable rod penetrating through the limiting sleeves in a sliding mode is arranged on the top face of the upper cross rod in the longitudinal direction, and a plurality of L-shaped plug pins are arranged on the movable rod according to the intervals of the main rib buckles. And each bolt can be inserted into the corresponding pin hole through which the corresponding main rib buckle penetrates to seal the corresponding buckle opening. According to the utility model, a plurality of cable bent tower main reinforcements can be preliminarily positioned on the lifting appliance and vertically lifted to mounting positions in batches, so that the cable bent tower main reinforcements can be conveniently and quickly butted with the lower main reinforcements, and the construction efficiency and the safety are high.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, relates to the construction of concrete cable towers of cable-stayed bridges or suspension bridges, and specifically relates to a limiting type cable tower main reinforcement sheet installation hanger. Background Art

[0002] At present, during the construction of concrete cable towers, there are two main ways to install cable tower steel bars. One is to tie the entire segment in the back field and transport it to the site for overall hoisting, and the other is to assemble the steel bars in situ. The overall hoisting process can improve the efficiency of steel bar installation and construction and ensure the quality of steel bar binding, but it has high requirements for transportation equipment, road transportation conditions, lifting capacity of hoisting equipment, and steel bar alignment accuracy. Especially as the construction height of the cable tower increases, the lifting capacity of ordinary hoists often cannot meet the requirements. In addition, the steel cage is easily deformed during transportation and hoisting. The in-situ loose assembly method is to lift the cable tower main bars into bundles onto the cable tower high-altitude construction platform, and the construction workers erect them one by one on the platform. Not only is the construction efficiency low, the high-altitude operation time is long, and the safety risk is high, but it also has high requirements for the bearing capacity of the construction platform and increases the platform material investment. Summary of the invention

[0003] The utility model aims to solve the above problems and provide a limited-position cable tower main reinforcement piece installation hanger to reduce equipment investment and ensure the efficiency of steel bar installation construction.

[0004] The technical solution of the utility model is as follows:

[0005] The two ends of the U-shaped main reinforcement buckle are equidistantly welded on the outer side of the top surface of the upper cross bar, and the two ends of the main reinforcement buckle are provided with pin holes that penetrate along the longitudinal direction of the upper cross bar.

[0006] Compared with the prior art, the utility model has the following advantages:

[0007] 1. Compared with the whole segment steel bar lifting method, the utility model does not need to set up a steel bar assembly site and assembly frame on the ground. The weight of each lifting is lighter, the lifting capacity requirement of the lifting equipment is also lower, the equipment cost is low, and the steel bar deformation can be avoided during the lifting process to ensure the quality of steel bar construction.

[0008] 2. Compared with the in-situ scattered assembly method, the utility model can preliminarily position multiple cable tower main reinforcements on the sling and lift them vertically in batches to the installation position, which is convenient for rapid connection with the main reinforcement below, and the construction efficiency is high. At the same time, since there is no need to temporarily place the steel bars on the high-altitude construction platform, the load-bearing capacity requirements of the construction platform are low, which can reduce the material investment and cost of platform erection and reduce the risk of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front structural schematic diagram of the utility model;

[0010] Figure 2 It is a schematic diagram of the structure of the utility model when the main rib buckle is in an open state;

[0011] Figure 3 It is a schematic diagram of the top view of the structure of the main reinforcement buckle of the utility model in a closed state;

[0012] Figure 4 It is a structural schematic diagram of the movable rod of the utility model;

[0013] Figure 5 It is a schematic diagram of the side view structure state of the utility model;

[0014] Figure 6 It is a side view of the utility model in use state;

[0015] Figure 7 It is a front view of the utility model in use state. DETAILED DESCRIPTION

[0016] like Figures 1 to 5 The utility model comprises two vertical rods 1, a lower cross bar 2 is welded between the lower ends of the two vertical rods, an upper cross bar 3 is welded between the upper ends of the two vertical rods, and a lifting ear 5 is welded on the upper end of each vertical rod. The top of the lower cross bar 2 is provided with a main reinforcement bracket 21 in the longitudinal direction, and a plurality of U-shaped main reinforcement buckles 6 are welded equidistantly on the outer side of the top surface of the upper cross bar 3. The opening of each U-shaped main reinforcement buckle 6 faces the outer side of the upper cross bar, and pin holes 61 are provided at both ends of the main reinforcement buckle along the longitudinal direction of the upper cross bar. A plurality of limiting sleeves 7 are welded on the inner side of the top surface of the upper cross bar, and the axial direction of the limiting sleeve is parallel to the longitudinal direction of the upper cross bar. A movable rod 8 slidably inserted in each limiting sleeve is provided on the top surface of the upper cross bar in the longitudinal direction. A plurality of L-shaped pins 9 are provided on the movable rod 8 according to the spacing of the main reinforcement buckles. One end of each pin 9 is welded to the movable rod 8, and the other end can be inserted into the pin hole 61 penetrated by a main reinforcement buckle 6 to close the opening of the main reinforcement buckle 6.

[0017] The above structure, such as Figure 3As shown, the movable rod 8 is pushed from one end of the upper cross bar to the other end, and each L-shaped pin 9 on the movable rod can be inserted into the through-pin hole 61 of each U-shaped buckle, so as to close the opening of each main rib buckle 6; Figure 2 As shown, the movable rod 8 is pulled in the reverse direction, and the L-shaped pin on the movable rod is disengaged from the pin hole, so that the opening of the main reinforcement buckle 6 can be opened.

[0018] During the specific implementation of the utility model, in order to facilitate the pushing and pulling of the movable rod, an annular push-pull handle 10 can be welded to one end of the movable rod 8 .

[0019] During the specific implementation of the utility model, in order to ensure the stability of the main reinforcement when lifting, at least one middle cross bar 4 can be welded between the two vertical bars. The structure of the middle cross bar is the same as that of the upper cross bar. The middle cross bar 4 is provided with the same main reinforcement buckle 6, limiting sleeve 7 and movable rod 8 as those on the upper cross bar.

[0020] Furthermore, in order to ensure the strength of the lower cross bar, two oblique support rods 11 arranged in an eight-shaped shape may be welded between the lower cross bar 2 and the middle cross bar 4 above it.

[0021] When the utility model is implemented, the lower cross bar 2 can be made of a channel steel with a notch facing upward, and the notch of the channel steel is used as the main reinforcement bracket 21.

[0022] When the utility model is implemented, the main reinforcement buckle spacing on the upper cross bar and the middle cross bar is set according to the designed spacing of the main reinforcement of the cable tower.

[0023] like Figure 6 , Figure 7 As shown, when the utility model is used, the sling is first placed flat on the ground, with the main bar buckle opening facing upward, and the movable rod 8 is pulled to open the openings of each main bar buckle 6, and the main bar 12 of the cable tower is placed into the openings of each main bar buckle along the longitudinal direction of the vertical rod, and the lower end of the main bar 12 is inserted into the bracket 21 on the lower cross bar 2, and then the movable rod 8 is pushed to close the openings of each main bar buckle 6; the crane connects the two lifting ears 5 of the sling through the lifting rope 13, lifts the sling to a vertical state, and then lifts it above the cable tower reinforcement installation position; during the lifting process, the buckle opening is closed, which can prevent the main bar from falling off the sling; the construction personnel move the lower end of the main bar 12 out of the bracket one by one on the cable tower construction platform, and dock with the main bar installed below. Since the main bar spacing on the sling is consistent with the main bar spacing designed for the cable tower, the upper and lower main bars can be quickly connected. After all the main bars are docked, the sling is hoisted back to the ground to continue the next batch of main bars.

Claims

1. A limited-position cable tower main reinforcement piece installation hanger, characterized in that: The invention comprises two vertical bars, a lower cross bar is welded between the lower ends of the two vertical bars, an upper cross bar is welded between the upper ends of the two vertical bars, and a lifting ear is welded on the upper end of each vertical bar, and a main reinforcement bracket is longitudinally arranged on the top of the lower cross bar, and a plurality of U-shaped main reinforcement buckles are equidistantly welded on the outer side of the top surface of the upper cross bar, and the opening of each U-shaped main reinforcement buckle faces the outer side of the upper cross bar, and pin holes are arranged at both ends of the main reinforcement buckle and penetrate along the longitudinal direction of the upper cross bar, and a plurality of limiting sleeves are welded on the inner side of the top surface of the upper cross bar, and the axial direction of the limiting sleeve is parallel to the longitudinal direction of the upper cross bar, and a movable rod slidably inserted in each limiting sleeve is arranged on the top surface of the upper cross bar along the longitudinal direction, and a plurality of L-shaped pins are arranged on the movable rod according to the spacing of the main reinforcement buckles, one end of each pin is welded to the movable rod, and the other end can be inserted into the pin hole penetrated by a main reinforcement buckle to close the buckle opening.

2. The position-limited cable tower main reinforcement piece installation hanger according to claim 1 is characterized in that: One end of the movable rod is provided with an annular push-pull handle.

3. The position-limited cable tower main reinforcement piece installation hanger according to claim 2 is characterized in that: At least one middle cross bar is welded between the two vertical bars. The structure of the middle cross bar is the same as that of the upper cross bar. The middle cross bar is provided with the same main reinforcement buckle, limiting sleeve and movable rod as those on the upper cross bar.

4. The position-limited cable tower main reinforcement piece installation hanger according to claim 3 is characterized in that: Two oblique support rods arranged in an eight-shaped shape are welded between the lower cross bar and the middle cross bar above it.

5. The position-limited cable tower main reinforcement piece installation hanger according to claim 1 is characterized in that: The lower cross bar is made of a channel steel with a notch facing upwards, and the notch of the channel steel serves as the main reinforcement bracket.

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