A fast lifting device for construction materials

Abstract

The present invention provides a rapid lifting device for construction materials, which effectively solves the problems that the lifting of pipe column type building materials at the construction site is inconvenient, requires the cooperation of multiple people, cannot be lifted quickly in batches, cannot be put down one by one, and the lifting of various bracket type building materials is troublesome and requires manual handling and distribution; the technical solution thereof is to include a flat plate with a lifting ring on the flat plate; a plurality of clamping mechanisms are provided on the lower side of the flat plate, the clamping mechanism includes a U-shaped plate, the upper end of the U-shaped plate and the flat plate, two movable plates are provided on the lower side of the U-shaped plate, connecting rods are provided at the left and right ends of the movable plate, a rotating shaft passes through the movable plate, a driven gear is fixed to the upper end of the rotating shaft, the two driven gears are meshed for transmission, a spiral augers are fixed to the lower end of the rotating shaft, and the two spiral augers in the same clamping mechanism are mirror-symmetrical; a fixed plate is provided on one side of the U-shaped plate, bolts are provided on the fixed plate, and connecting rods are hinged at the front and rear ends of the small plate.

Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, in particular to a fast hoisting device for construction materials. Background Art

[0002] In the early stage, building materials at the construction site are stacked according to certain rules. For pipes and columns, the most common method is to stack them in a tic-tac-toe pattern, that is, the building materials between two adjacent layers are placed vertically, and there are pads between two adjacent building material units. This allows effective ventilation and can effectively prevent rust and corrosion of the building materials on the lower layer. When transportation is required, it is taken out by lifting with a crane. Due to the limitations of the stacking method of steel pipes, there are no special lifting devices at this stage. Steel pipes can only be lifted by hooking the two ends of the steel pipes with wire ropes. The wire ropes can be put into the gaps between the steel pipe layers only when they are stretched straight. This process requires the cooperation of more than two workers, or the unstraightened wire ropes can be directly inserted into the gaps between the steel pipe layers. During the whole process, workers need to walk back and forth along one side of the pipe support. At the same time, this method increases the risk of the steel pipe falling off during lifting. Both methods have low steel pipe lifting efficiency and cannot achieve the purpose of "lifting in batches and putting down one by one". Multiple building materials in the lifting device can only be piled together and then manually carried and arranged. Not only do workers have to operate frequently and have a large workload, but it also hinders the construction progress and poses safety hazards.

[0003] In addition, it is worth noting that the building materials on the construction site are far more than simple pipes and columns, but also include a variety of prefabricated parts, steel frames, such as rectangular steel frames, fence-like stair guardrails, etc. When installing guardrails on the edge of bridges and floor corridors, the steel materials need to be connected and fixed end to end in sequence. The existing hoists cannot be placed one by one, and workers need to carry them, resulting in a waste of manpower and material resources, which also seriously affects the construction progress. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a rapid lifting device for construction materials, which effectively solves the problems that the lifting of pipe column building materials at the construction site is inconvenient, requires the cooperation of multiple people, cannot be lifted in batches quickly, cannot be put down one by one, and the lifting of various bracket-type building materials is relatively troublesome and requires manual handling and distribution.

[0005] The technical solution is as follows: it comprises a horizontal flat plate, and lifting rings are fixed on the upper sides of both ends of the flat plate; a plurality of clamping mechanisms are arranged on the lower side of the flat plate, and the clamping mechanisms comprise a U-shaped plate with an opening downward, and the U-shaped plate is arranged along the front and rear, and the upper end of the U-shaped plate is fixed to the flat plate through a plurality of fixing rods, and two horizontal and front-to-back symmetrical movable plates are arranged on the lower side of the U-shaped plate, and connecting rods are fixed on the left and right ends of the movable plates, and the ends of the connecting rods on the same side of the two front-to-back symmetrical movable plates overlap and are hinged to the side plates of the U-shaped plate, and a vertical and rotatable rotating shaft runs through the movable plate, and a rotating shaft extending from the upper end of the rotating shaft is fixed The U-shaped plate has a fixed plate on one side, and bolts that can move up and down penetrate the fixed plate. A small plate is arranged at the lower end of the bolts. The front and rear ends of the small plate are hinged with connecting rods corresponding to the movable plates one by one. The other end of the connecting rod is hinged with the corresponding movable plate. When the bolt drives the small plate to move up and down, the small plate drives the corresponding movable plate to rotate around the hinge at the upper end of the connecting rod through the connecting rod, and at the same time controls the two rotating shafts to move closer or farther away from each other.

[0006] Furthermore, the two driven gears need to maintain meshing transmission. Therefore, in order to achieve meshing between the driving gear and the driven gear, the outer contour of the driven gear is spherical, and the meshing part of the two driven gears is located on the axis of the connecting rod hinge.

[0007] Furthermore, a driving gear is provided at the rear side of the U-shaped plate cavity, a motor is connected to the driving gear, and the motor is fixed on the U-shaped plate.

[0008] Furthermore, the bolt is connected to the fixing plate via threads, and screwing the bolt can control the up and down movement of the bolt.

[0009] Furthermore, the lower end of the bolt passes through the small plate, and a bearing is installed between the bolt and the small plate.

[0010] Furthermore, the plate is divided into two sections, a left section and a right section, a plurality of double-headed lead screws are arranged between the two sections, nuts are mounted on both ends of the lead screws, and the nuts are fixed to the plate.

[0011] The present invention has an ingenious structure and can achieve the purpose of "lifting in batches and putting down one by one". It does not require manual handling and distribution, reduces labor, is conducive to improving construction efficiency, and speeds up construction progress. Of course, it can also be used to clamp and lift large-scale structural building materials such as steel cages, and can achieve their smooth fall. The present invention has strong adaptability, a wide range of applications, and is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front cross-sectional view of the present invention.

[0013] Figure 2 It is a side view of the present invention.

[0014] Figure 3 It is a side sectional view of the present invention.

[0015] Figure 4 for Figure 2 Middle AA section view.

[0016] Figure 5 This is a state diagram of the present invention when clamping pipes stacked on a pile.

[0017] Figure 6 This is a state diagram of the present invention when clamping a thicker pipe. DETAILED DESCRIPTION

[0018] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0019] Depend on Figures 1 to 6 The present invention comprises a horizontal flat plate 1, and a lifting ring 2 is fixed on the upper side of both ends of the flat plate 1; a plurality of clamping mechanisms are arranged on the lower side of the flat plate 1, and the clamping mechanisms include a U-shaped plate 3 with an opening downward, and the U-shaped plate 3 is arranged along the front and rear, and the upper end of the U-shaped plate 3 is fixed to the flat plate 1 through a plurality of fixing rods, and two horizontal and front-to-back symmetrical movable plates 4 are arranged on the lower side of the U-shaped plate 3, and connecting rods 5 are fixed on the left and right ends of the movable plates 4, and the ends of the connecting rods 5 on the same side of the two front-to-back symmetrical movable plates 4 overlap and are hinged to the side plates of the U-shaped plate 3, and a vertical and rotatable shaft 6 runs through the movable plate 4, and a driven gear is fixed on the upper end of the shaft 6 7, two driven gears 7 are meshed for transmission, a spiral auger 8 is fixed at the lower end of the rotating shaft 6, and the two spiral auger 8 in the same clamping mechanism are mirror-symmetrical; a fixed plate is provided on one side of the U-shaped plate 3, and a bolt 9 that can move up and down passes through the fixed plate, and a small plate is provided at the lower end of the bolt 9, and a connecting rod 10 corresponding to the movable plate 4 is hinged at the front and rear ends of the small plate, and the other end of the connecting rod 10 is hinged to the corresponding movable plate 4. When the bolt 9 drives the small plate to move up and down, the small plate drives the corresponding movable plate 4 to rotate around the hinge at the upper end of the connecting rod 5 through the connecting rod 10, and at the same time controls the two rotating shafts 6 to approach or move away from each other.

[0020] In order to clamp pipes with larger diameters, the two driven gears 7 need to maintain meshing transmission. To this end, in order to achieve meshing between the driving gear 11 and the driven gear 7, the outer contour of the driven gear 7 is spherical, and the meshing portion of the two driven gears 7 is located on the axis of the hinge of the connecting rod 5.

[0021] In order to realize the rotation of the driven gear 7 , a driving gear 11 is provided at the rear side of the cavity of the U-shaped plate 3 , and a motor 12 is connected to the driving gear 11 , and the motor 12 is fixed on the U-shaped plate 3 .

[0022] In order to realize the up and down movement of the bolt 9, the bolt 9 is connected to the fixing plate via threads, and screwing the bolt 9 can control the up and down movement of the bolt 9.

[0023] In order to install the small plate, the lower end of the bolt 9 passes through the small plate, and a bearing is installed between the bolt 9 and the small plate.

[0024] In order to adapt to pipes of different lengths, the plate 1 is divided into two sections, a plurality of double-headed screws 13 are arranged between the two sections, and nuts 14 are mounted on both ends of the screws 13 , which are fixed to the plate 1 .

[0025] It is worth noting that the two spiral augers 8 in the same clamping unit have the same lead but opposite rotation directions; viewed from the side, the bolt 9 is located between the two rotating shafts 6; the movable plate 4 rotates around the end hinge of the connecting rod 5, and the meshing point of the two driven gears 7 is just on the rotating shaft of the hinge.

[0026] When it is necessary to hoist multiple building materials from the stacked building materials pile, first tighten the bolt 9, the bolt 9 drives the small plate to move upward, and the small plate drives the two movable plates 4 to open to both sides to form an eight-shaped shape through the connecting rod 10. At this time, one of the rotating shafts 6 is placed in the interval between the pipe layers, and the spiral auger 8 separates multiple steel materials. The other rotating shaft 6 is on the upper side of the pipe to be lifted. At this time, tighten the bolt 9 to restore the bolt 9 to its original state, and the two rotating shafts 6 are close to each other and separate the two adjacent pipe fittings. Then the other end of the pipe is clamped in the same way. Finally, the crane directly lifts the device through the lifting ring 2 to achieve rapid lifting of multiple pipe fittings. When it is necessary to lower the pipes one by one, the motor 12 rotates forward, and the motor 12 drives the two passive gears to rotate through the active gear 11. The two passive gears rotate synchronously in the opposite direction. Under the action of the spiral auger 8, the multiple pipes clamped in the device are lowered one by one.

[0027] The device can also collect pipes placed on the ground one by one. Specifically, the device is vertically hoisted above the pipes to be collected and gradually lowered. At the same time, the motor 12 is started to rotate in the opposite direction, and the lower ends of the two spiral augers 8 clamp each other to lift the pipes.

[0028] The device can clamp the steel cage. Specifically, the device is placed in a suitable position, and the motor 12 is started. The motor 12 is reversed, and the two spiral augers 8 gradually clamp the steel cage, and then the motor 12 is turned off. At this time, the lifting can be carried out normally.

[0029] The device uses two spiral blades to clamp multiple building materials at the same time without contacting each other, thereby avoiding damage to the building materials. In this process, the chain can enter the gap between steel pipe layers from both ends without human assistance, which can effectively reduce the role of labor.

[0030] The two counter-rotating spiral augers 8 of the device enable the building materials to be placed one by one, and multiple pipes can be discharged as needed, which reduces the trouble of manual handling in the later stage, reduces the labor workload, and improves the construction efficiency.

[0031] like Figure 6 As shown, the present invention can clamp building materials of different diameters and specifications within a certain range.

[0032] The building materials clamping sling proposed in the present invention overturns the traditional clamping method, solves the problem that the traditional clamps cannot lift in batches quickly or lower them one by one, can adapt to the needs of modern construction, can meet various lifting requirements, is easy to operate, and has strong adaptability.

Claims

1. A construction material rapid lifting device, characterized in that: The invention comprises a horizontal plate (1), wherein the upper sides of both ends of the plate (1) are fixed with lifting rings (2); the lower side of the plate (1) is provided with a plurality of clamping mechanisms, wherein the clamping mechanisms comprise a U-shaped plate (3) with an opening facing downward, the U-shaped plates (3) are arranged along the front and rear, the upper ends of the U-shaped plates (3) are fixed to the plate (1) via a plurality of fixing rods, the lower side of the U-shaped plate (3) is provided with two horizontal and front-to-back symmetrical movable plates (4), the left and right ends of the movable plates (4) are fixed with connecting rods (5), the ends of the connecting rods (5) on the same side of the two front-to-back symmetrical movable plates (4) overlap and are hinged to the side plates of the U-shaped plate (3), the movable plate (4) is penetrated with a vertical and rotatable rotating shaft (6), the upper end of the rotating shaft (6) is fixed with a driven gear (7) ), two driven gears (7) are meshed for transmission, a spiral auger (8) is fixed at the lower end of the rotating shaft (6), and the two spiral auger (8) in the same clamping mechanism are mirror-symmetrical; a fixed plate is provided on one side of the U-shaped plate (3), a bolt (9) that can move up and down penetrates the fixed plate, a small plate is provided at the lower end of the bolt (9), and a connecting rod (10) corresponding to the movable plate (4) is hinged at the front and rear ends of the small plate, and the other end of the connecting rod (10) is hinged to the corresponding movable plate (4). When the bolt (9) drives the small plate to move up and down, the small plate drives the corresponding movable plate (4) to rotate around the hinge at the upper end of the connecting rod (5) through the connecting rod (10), and at the same time controls the two rotating shafts (6) to approach or move away from each other.

2. A construction material rapid lifting device according to claim 1, characterized in that: The outer contour of the driven gear (7) is spherical, and the meshing position of the two driven gears (7) is located on the axis of the hinge of the connecting rod (5).

3. A construction material rapid lifting device according to claim 1, characterized in that: A driving gear (11) is provided on the rear side of the cavity of the U-shaped plate (3), and a motor (12) is connected to the driving gear (11), and the motor (12) is fixed on the U-shaped plate (3).

4. A construction material rapid lifting device according to claim 1, characterized in that: The bolt (9) is threadedly connected to the fixing plate, and screwing the bolt (9) can control the up and down movement of the bolt (9).

5. The rapid lifting device for construction materials according to claim 1 is characterized in that: The lower end of the bolt (9) passes through the small plate, and a bearing is installed between the bolt (9) and the small plate.

6. A construction material rapid lifting device according to claim 1, characterized in that: The plate (1) is divided into two left and right sections, with a plurality of double-headed lead screws (13) between the two sections. Nuts (14) are mounted on both ends of the lead screws (13), and the nuts (14) are fixed to the plate (1).

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