A device for lifting a building grid

Abstract

The utility model discloses a kind of for building net rack jacking device, including support steel plate, the support steel plate top is placed with jacking support frame symmetrically, flange and connecting plate are provided on the jacking support frame, the flange is symmetrically welded in jacking support frame corner, the connecting plate is symmetrically welded in jacking support frame inner side upper and lower, and mutually symmetric connecting plate is fixed with horizontal angle steel by bolt mounting between, upper and lower staggered symmetric connecting plate is fixed with inclined angle steel by bolt mounting between.The utility model can easily jacking operation to building net rack, effectively improve construction efficiency and security.

Description

Technical Field

[0001] This utility model relates to a lifting device for building space frame, belonging to the field of building space frame construction technology. Background Technology

[0002] Currently, during the construction of large-scale building space frames, site limitations prevent the access of large hoisting equipment, hindering or halting construction. To address this issue, a new technical solution is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a lifting device for building space frames to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a lifting device for building space frame, comprising a supporting steel plate, on the top of the supporting steel plate symmetrically placed a lifting support frame, the lifting support frame being provided with flanges and connecting plates, the flanges being symmetrically welded to the corners of the lifting support frame, the connecting plates being symmetrically welded to the upper and lower inner sides of the lifting support frame, and horizontal angle steel being bolted between the mutually symmetrical connecting plates, and oblique angle steel being bolted between the vertically staggered symmetrical connecting plates.

[0005] Preferably, the top of the lifting support frame is symmetrically supported by square steel pipes on both sides, and a lower bracket is placed inside the square steel pipes. The lower bracket is equipped with a first extension arm and a hydraulic cylinder. The first extension arm is symmetrically welded to the front and rear ends of the top of the lower bracket, and the outer end of the lower bracket is placed on the top of the square steel pipes. The hydraulic cylinder is fixed inside the lower bracket by bolts.

[0006] Preferably, the top of the hydraulic cylinder piston rod is fixed to an upper bracket by bolts, the upper bracket is provided with a second extension arm and a support seat, the second extension arm is symmetrically welded to both sides of the top of the upper bracket, the support seat is welded to the middle of the top of the upper bracket, and a bolt ball support seat is fixed to the middle of the top of the support seat by bolts.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: The symmetrical connecting plates of this utility model are fixed with horizontal angle steel by bolts, which can easily connect the symmetrically placed lifting support frames together; the flanges are symmetrically welded to the corners of the lifting support frames, which can easily connect the upper and lower parts of the lifting support frames; the top of the hydraulic cylinder piston rod is fixed with an upper bracket by bolts, which can easily lift the upper bracket through the hydraulic cylinder; in summary, this utility model can easily perform lifting operations on the building space frame, effectively improving construction efficiency and safety. Attached Figure Description

[0008] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the lifting support frame structure of this utility model; Figure 3 This is a schematic diagram of the lower bracket structure of this utility model; Figure 4 This is a schematic diagram of the upper bracket structure of this utility model; In the diagram: 1-Supporting steel plate; 2-Lifting support frame; 3-Flange; 4-Connecting plate; 5-Horizontal angle steel; 6-Beveled angle steel; 7-Supporting square steel pipe; 8-Lower bracket; 9-First extension arm; 10-Hydraulic cylinder; 11-Upper bracket; 12-Second extension arm; 13-Support seat; 14-Bolt ball support seat. Detailed Implementation

[0009] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0010] like Figure 1-4 As shown, a lifting device for a building space frame includes a supporting steel plate 1. A lifting support frame 2 is symmetrically placed on top of the supporting steel plate 1. Flanges 3 and connecting plates 4 are provided on the lifting support frame 2. The flanges 3 are symmetrically welded to the corners of the lifting support frame 2. The connecting plates 4 are symmetrically welded to the upper and lower inner sides of the lifting support frame 2. Horizontal angle steel 5 is bolted between the symmetrically connected plates 4. Diagonal angle steel 6 is bolted between the vertically staggered symmetrical connecting plates 4. Supporting square steel pipes 7 are symmetrically placed on both sides of the top of the lifting support frame 2. A lower bracket 8 is placed inside the supporting square steel pipes 7. The lower bracket 8... The lower support 8 is equipped with a first extension arm 9 and a hydraulic cylinder 10. The first extension arm 9 is symmetrically welded to the front and rear ends of the top of the lower support 8, and the outer end of the lower support 8 is placed on the top of the supporting square steel pipe 7. The hydraulic cylinder 10 is fixed to the middle of the lower support 8 by bolts. The piston rod of the hydraulic cylinder 10 is fixed to the top of the upper support 11 by bolts. The upper support 11 is equipped with a second extension arm 12 and a support seat 13. The second extension arm 12 is symmetrically welded to the two sides of the top of the upper support 11. The support seat 13 is welded to the middle of the top of the upper support 11, and a bolt ball support seat 14 is fixed to the middle of the top of the support seat 13 by bolts.

[0011] Specific usage: Connect hydraulic cylinder 10 to an external hydraulic pump station via a solenoid valve. Simultaneously, install a displacement sensor on hydraulic cylinder 10 and electrically connect the solenoid valve and displacement sensor to an external PLC control cabinet. Before lifting, fix the lifting support frame 2 vertically to three layers via flange 3. Place the second extension arm 12 on top of the uppermost lifting support frame 2. Place the bolt ball support 14 at the bottom of the bolt ball of the building frame to be lifted. Then, start hydraulic cylinder 10 to lift the upper support frame 11 by 1050mm, and simultaneously lock hydraulic cylinder 10. At this time, the operator, secured by a fall arrestor rope, climbs from the outside of the lifting support frame 2 to the uppermost lifting support frame 2. At the top, ground operators attach a single standard lifting support frame 2 to an electric hoist and lift it to the operating position. To ensure safety during installation, the installation of both standard lifting support frames 2 is completed by workers standing inside the topmost lifting support frame 2. At this time, the second extension arm 12 is positioned on top of the fourth-layer lifting support frame 2. Then, the support square steel pipe 7 is removed, and the hydraulic cylinder 10 is activated to drive the lower bracket 8 to rise to the top of the second-layer lifting support frame 2. At this time, the support square steel pipe 7 is placed on top of the second-layer lifting support frame 2 to support the lower bracket 8. The above method completes one stroke of lifting for the building space frame. By repeating the above operation, the building space frame can be gradually lifted.

[0012] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A lifting device for building space frames, comprising a supporting steel plate (1), characterized in that: The top of the supporting steel plate (1) is symmetrically equipped with a lifting support frame (2). The lifting support frame (2) is provided with a flange (3) and a connecting plate (4). The flange (3) is symmetrically welded to the corner of the lifting support frame (2). The connecting plate (4) is symmetrically welded to the upper and lower inner side of the lifting support frame (2). The connecting plates (4) that are symmetrical to each other are fixed with horizontal angle steel (5) by bolts. The connecting plates (4) that are symmetrical to each other are fixed with diagonal angle steel (6) by bolts.

2. The lifting device for building space frames according to claim 1, characterized in that: The lifting support frame (2) has symmetrical support square steel pipes (7) placed on both sides of the top. The support square steel pipe (7) has a lower bracket (8) placed inside. The lower bracket (8) is equipped with a first extension arm (9) and a hydraulic cylinder (10). The first extension arm (9) is symmetrically welded to the front and rear ends of the top of the lower bracket (8), and the outer end of the lower bracket (8) is placed on the top of the support square steel pipe (7). The hydraulic cylinder (10) is fixed inside the lower bracket (8) by bolts.

3. A lifting device for building space frames according to claim 2, characterized in that: The piston rod of the hydraulic cylinder (10) is fixed to the top of the upper bracket (11) by bolts. The upper bracket (11) is provided with a second extension arm (12) and a support seat (13). The second extension arm (12) is symmetrically welded to the top two sides of the upper bracket (11). The support seat (13) is welded to the middle of the top of the upper bracket (11), and a bolt ball support seat (14) is fixed to the middle of the top of the support seat (13) by bolts.

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