Lifting appliance for linear shear wall edge member reinforcement cage

Abstract

The invention discloses a lifting appliance for a linear shear wall edge member reinforcement cage, which comprises a longitudinal fixture and a transverse fixture, an annular lifting lug is welded on the top surface of the longitudinal fixture, bolt sliding grooves are arranged on the inner side surfaces of the longitudinal fixture and the transverse fixture, lifting hooks are arranged on the bottom surfaces of the longitudinal fixture and the transverse fixture, and positioning bolts are arranged in the bolt sliding grooves. Lug plates are arranged at the two ends of the longitudinal clamp and the transverse clamp, the longitudinal clamp and the transverse clamp are connected through plug pin holes and pin shafts in the lug plates, positioning holes are formed in the top face of the transverse clamp, and positioning telescopic rods are arranged on the bottom face of the transverse clamp. The upper lifting appliance and the lower lifting appliance form two hoops to clamp the reinforcement cage, the integrity of the reinforcement cage can be kept in the lifting process, it is guaranteed that the reinforcement cage is not loosened or deformed, and the safety of reinforcement cage lifting operation is improved.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and particularly to a lifting tool for the steel bar cage of the edge member of a straight shear wall during the construction process of the shear wall. Background Art

[0002] Currently, in the construction of residential buildings, the construction of the main structure is gradually developing towards standardization and prefabrication. During the construction process of the shear wall, the integrally fabricated steel bar cage of the edge member needs to be lifted as a whole and transported to a predetermined position for butt-joint with the lower-layer steel bars. During the lifting process of the steel bar cage, it is necessary to keep the whole steel bar cage from deforming and also keep the relative positions of the vertical steel bars unchanged, so as to align and connect the steel bar cages of the upper and lower-layer shear walls. Therefore, a lifting tool with stable structure, convenient use and high safety is required. The traditional lifting method is to directly arrange the lifting points on the steel bars. It is difficult to maintain the integrity of the steel bar skeleton during the lifting process, and it is easy to cause the steel bars to deform and bend, affecting the positioning and connection of the steel bars. Summary of the Invention

[0003] (I) Object of the Invention To ensure the stability and safety during the lifting of the steel bar cage of the edge member of a straight shear wall, the present invention provides a lifting tool for the steel bar cage of the edge member of a straight shear wall. The device is simple and convenient to install, has high turnover efficiency, is safe and reliable, effectively realizes the stable lifting of the steel bars of the straight edge member, ensures the integrity of the steel bar skeleton, avoids the damage and deformation of the steel bar cage caused by the traditional lifting method, and improves the safety of the lifting of the steel bar cage.

[0004] (II) Technical Solution To achieve the above object, the present invention provides the following technical solution: A lifting tool for the steel bar cage of the edge member of a straight shear wall, comprising a longitudinal clamp, a transverse clamp, a lifting lug, an ear plate, a pin hole, a pin shaft, a positioning bolt, a bolt sliding groove, a hook, a positioning telescopic rod, and a positioning hole. An annular lifting lug is welded on the top surface of the longitudinal lifting tool. Bolt sliding grooves are arranged on the inner side surfaces of the longitudinal clamp and the transverse clamp, and hooks are arranged on the bottom surfaces. Positioning bolts are arranged in the bolt sliding grooves. Ear plates are arranged at both ends of the longitudinal clamp and the transverse clamp, and they are connected through the pin holes and pin shafts on the ear plates. A positioning hole is arranged on the top surface of the transverse clamp, and a positioning telescopic rod is arranged on the bottom surface.

[0005] Preferably, T-shaped bolt sliding grooves are formed on the inner sides of the longitudinal clamp and the transverse clamp. The bolt sliding grooves include a top notch and a bottom notch. The width of the top notch is slightly larger than the diameter of the screw rod of the positioning bolt, and the depth is shorter than the length of the screw rod. The width of the bottom notch is slightly larger than the diameter of the bolt head of the positioning bolt, and the depth is slightly larger than the thickness of the bolt head. A part of the screw rod is located in the top notch, and the other part extends outside the sliding groove. The bolt head is completely located in the bottom notch, and the nut is sleeved on the screw rod and located outside the bolt sliding groove. The positioning bolt can freely translate in the bolt sliding groove.

[0006] Preferably, a circular positioning hole is formed on the top surface of the transverse clamp, and a telescopic positioning push rod is welded to the bottom surface. The diameter of the end of the positioning push rod is the same as the diameter of the positioning hole, and the vertical positions of the positioning push rod and the positioning hole correspond to each other.

[0007] Preferably, two annular lifting lugs are arranged on the top surface of the longitudinal clamp, and the lifting lugs are welded to the top surface of the longitudinal clamp.

[0008] Preferably, ear plates are respectively arranged at both ends of the longitudinal clamp and the transverse clamp, pin holes are formed in the ear plates, and two adjacent longitudinal clamps and transverse clamps are connected by a pin shaft passing through the pin holes.

[0009] Preferably, hooks are arranged on the bottom surfaces of the longitudinal clamp and the transverse clamp, and the hooks can rotate.

[0010] Compared with the prior art, the steel cage lifting tool of the present invention has at least the following beneficial effects: 1. The upper and lower lifting tools form two hoops to clamp the steel cage, and the integrity of the steel bar framework can be maintained during the hoisting process, ensuring that the steel cage does not loosen or deform, and improving the safety of the steel cage hoisting operation.

[0011] 2. The hoisting machine lifts the present lifting tool without directly contacting the steel cage, avoiding the damage to the steel bars caused by directly tying the sling to the steel cage in the traditional way. The upper and lower lifting tools of the present invention have multiple hooks to hook the edge member steel bars, dispersing the lifting weight and reducing the stress on the steel bars during the hoisting process.

[0012] 3. The position of the vertical steel bars is fixed by the positioning bolts, ensuring that the relative positions of the vertical steel bars do not change during the hoisting process, and the positioning bolts can freely translate in the bolt sliding grooves to adapt to different arrangements of the vertical steel bars.

[0013] 4. The present lifting tool is provided with a telescopic positioning rod and a positioning hole, which can conveniently align the upper-layer steel cage with the lower-layer steel cage that has been installed, so as to quickly complete the connection of the upper and lower layers of steel bars.

[0014] 5. The longitudinal fixture and the transverse fixture of this lifting tool are connected through the pin holes and pins arranged on the ear plates. The pins can be taken out from the pin holes, which is convenient for quick disassembly and turnover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a front view of the longitudinal fixture of the present invention; Figure 3 is a left view of the longitudinal fixture of the present invention; Figure 4 is a front view of the transverse fixture of the present invention; Figure 5 is a top view of the transverse fixture of the present invention.

[0016] Figure 6 is a schematic diagram of the overall structure of the present invention when the upper and lower steel bar cages are butted.

[0017] Wherein: 1. Longitudinal fixture; 2. Transverse fixture; 3. Suspension ear; 4. Ear plate; 5. Pin hole; 6. Pin; 7. Positioning bolt; 70. Screw rod; 71. Bolt head; 72. Nut; 8. Bolt sliding groove; 80. Top notch; 81. Bottom notch; 9. Hook; 10. Positioning telescopic rod; 11. Positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present invention simple and clear, the present invention will be further described below in conjunction with specific embodiments.

[0019] Refer to Figure 1-6 , a lifting tool for the steel bar cage of the edge member of a one - shaped shear wall, comprising a longitudinal fixture, a transverse fixture, a suspension ear, an ear plate, a pin hole, a pin, a positioning bolt, a bolt sliding groove, a hook, a positioning telescopic rod, a positioning hole. The top surface of the longitudinal lifting tool is welded with an annular suspension ear. The inner side surfaces of the longitudinal fixture and the transverse fixture are provided with bolt sliding grooves, and the bottom surfaces are provided with hooks. The positioning bolts are arranged in the bolt sliding grooves. The longitudinal fixture and the transverse fixture are provided with ear plates at both ends, and are connected through the pin holes and pins on the ear plates. The top surface of the transverse fixture is provided with a positioning hole, and the bottom surface is provided with a positioning telescopic rod.

[0020] The inner sides of the longitudinal fixture and the transverse fixture are provided with a T-shaped bolt sliding groove that runs the entire length. The bolt sliding groove includes a top notch and a bottom notch. The width of the top notch is slightly larger than the diameter of the screw of the positioning bolt, and the depth is shorter than the length of the screw. The width of the bottom notch is slightly larger than the diameter of the bolt head of the positioning bolt, and the depth is slightly larger than the thickness of the bolt head. Part of the screw is located inside the top notch, and the other part extends outside the sliding groove. The bolt head is completely located inside the bottom notch, and the nut is sleeved on the screw and located outside the bolt sliding groove. The positioning bolt can freely translate inside the bolt sliding groove.

[0021] A circular positioning hole is provided on the top surface of the transverse fixture, and a telescopic positioning push rod is welded to the bottom surface. The diameter of the end of the positioning push rod is the same as the diameter of the positioning hole, and the vertical positions of the positioning push rod and the positioning hole correspond to each other.

[0022] Two annular lifting lugs are provided on the top surface of the longitudinal fixture, and the lifting lugs are welded to the top surface of the longitudinal fixture.

[0023] The longitudinal fixture and the transverse fixture are provided with ear plates that extend respectively at both ends. Pin holes are provided on the ear plates, and two adjacent longitudinal fixtures and transverse fixtures are connected by a pin shaft passing through the pin holes.

[0024] Hook are provided on the bottom surfaces of the longitudinal fixture and the transverse fixture, and the hooks can rotate.

[0025] Specifically, a lifting tool for the steel bar cage of the edge member of a one-shaped shear wall includes two sets of lifting tools, and the two sets of lifting tools are exactly the same and have universality. Each set of lifting tools includes a longitudinal fixture 1 and a transverse fixture 2. The number of longitudinal fixtures 1 is two, and they are arranged parallel to the length direction of the wall; the number of transverse fixtures 2 is two, and they are arranged parallel to the thickness direction of the wall.

[0026] Furthermore, connecting ear plates 4 are provided at both ends of the longitudinal fixture 1 and the transverse fixture 2. Circular pin holes 5 are provided on the ear plates 4. Two adjacent longitudinal fixtures 1 and transverse fixtures 2 are connected by coaxial pin holes 5 and a pin shaft 6 inserted into the pin holes 5.

[0027] Furthermore, T-shaped bolt sliding grooves 8 are formed on the inner sides of the longitudinal fixture 1 and the transverse fixture 2, and a number of positioning bolts 7 are arranged inside the bolt sliding grooves 8. During installation, first loosen the nut 72, move the positioning bolt 7 near the adjacent vertical steel bars, and then tighten the nut 72. Use binding wire to tie and fix the vertical steel bars and the positioning bolt 7.

[0028] Furthermore, a number of hooks 9 are provided on the bottom surfaces of the longitudinal fixture 1 and the transverse fixture 2. During installation, rotate the hooks 9 so that each hook hooks the horizontal steel bars in the steel bar cage.

[0029] Further, during hoisting, the hoisting equipment takes a total of four lifting lugs 3 on the two longitudinal jigs 2 as the lifting points, and slowly and steadily hoists to erect the steel reinforcement cage in the air. Refer to Figure 6 , hoist this steel reinforcement cage above the lower steel reinforcement cage that has been installed, pull out the positioning tension rod 10 at the bottom surface of the lower transverse jig 2 of this steel reinforcement cage, align the end of the positioning tension rod 10 with the positioning hole on the top surface of the upper transverse jig 2 of the lower steel reinforcement cage and insert it to complete the alignment of the upper and lower steel reinforcement cages. Then, connect the vertical steel bars of the upper steel reinforcement cage and the vertical steel bars of the lower steel reinforcement cage in an appropriate manner.

[0030] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A lifting tool for the steel bar cage of the edge member of a straight shear wall, comprising a longitudinal clamp (1), a transverse clamp (2), a lifting lug (3), an ear plate (4), a pin hole (5), a pin shaft (6), a positioning bolt (7), a bolt sliding groove (8), a hook (9), a positioning telescopic rod (10), and a positioning hole (11), characterized in that: The top surface of the longitudinal fixture (1) is welded with an annular lifting lug (3). Bolt sliding grooves (8) are arranged on the inner side surfaces of the longitudinal fixture (1) and the transverse fixture (2), and a lifting hook (9) is arranged on the bottom surface. A positioning bolt (7) is arranged in the bolt sliding groove (8). The longitudinal fixture (1) and the transverse fixture (2) are connected through a pin hole (5) and a pin shaft (6) on an ear plate (4). A positioning hole (11) is arranged on the top surface of the transverse fixture (2), and a positioning telescopic rod (10) is arranged on the bottom surface.

2. The spreader for the reinforcement cage of the edge member of the one-shaped shear wall according to claim 1, characterized in that: T-shaped bolt sliding grooves (8) are formed on the inner side surfaces of the longitudinal fixture (1) and the transverse fixture (2). The T-shaped bolt sliding groove (8) includes a top notch (80) and a bottom notch (81). The width of the top notch (80) is slightly larger than the diameter of the screw rod (70) of the positioning bolt (7), and the depth is shorter than the length of the screw rod (70). The width of the bottom notch (81) is slightly larger than the diameter of the bolt head (71) of the positioning bolt (7), and the depth is slightly larger than the thickness of the bolt head (71), so as to facilitate the free translation of the positioning bolt (7) in the bolt sliding groove (8). A part of the screw rod (70) is located in the top notch (80), and the other part extends out of the sliding groove. The bolt head (71) is completely located in the bottom notch (81), and a nut (72) is sleeved on the screw rod (70) and is located outside the bolt sliding groove (8).

3. The spreader for the reinforcement cage of the edge member of the one-shaped shear wall according to claim 1, wherein: A circular positioning hole (11) is arranged on the top surface of the transverse fixture (2), and a telescopic positioning telescopic rod (10) is welded on the bottom surface. The diameter of the end of the positioning telescopic rod (10) is the same as the diameter of the positioning hole (11), and the vertical positions of the positioning telescopic rod (10) and the positioning hole (11) correspond to each other.

4. A lifting tool for the reinforcement cage of the edge member of a straight shear wall according to claim 1, characterized in that: Two annular lifting lugs (3) are arranged on the top surface of the longitudinal fixture (1), and the lifting lugs (3) are welded and connected to the top surface of the longitudinal fixture (1).

5. The spreader for the reinforcement cage of the edge member of the one-shaped shear wall according to claim 1, characterized in that: Ear plates (4) extending respectively are arranged at both ends of the longitudinal fixture (1) and the transverse fixture (2). Pin holes (5) are arranged on the ear plates (4). Adjacent longitudinal fixtures (1) and transverse fixtures (2) are connected through a pin shaft (6) passing through the pin holes (5).

6. The lifting jig for the I-shaped shear wall steel reinforcement cage according to claim 1, wherein: Lifting hooks (9) are arranged on the bottom surfaces of the longitudinal fixture (1) and the transverse fixture (2), and the lifting hooks (9) can rotate.

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