A chain hanger for building pipes

Abstract

The invention provides a chain hoist for building pipes, which effectively solves the problems that the hoisting of pipe column 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 hoisting of various bracket-type building materials is relatively troublesome and requires manual handling and distribution; the technical solution is as follows: it includes a flat plate, and there are lifting rings on the upper sides of both ends of the flat plate; there are multiple clamping mechanisms on the lower side of the flat plate; the clamping mechanism includes a long strip plate, there are two gears on the lower side of the long strip plate, and there are multiple groups of rotating units on the lower sides of the gears; the rotating unit includes a cylindrical block, a rectangular rod is provided on the cylindrical block, a rectangular block is provided on the upper side of the rectangular rod, the rectangular block and the rectangular rod are connected by a universal coupling, and a rectangular cylinder is mounted on the rectangular rod; a spiral blade is provided on the outer side of the cylindrical block; two adjacent cylindrical cylinders are connected by multiple steel wires; a threaded cylinder is provided on the central axis of the gear, an annular plate is mounted on the outer side of the threaded cylinder, and there are multiple steel wires on the gear, and the steel wires are connected between the annular plate and the uppermost rectangular cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, in particular to a chain hanger for building pipes. 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 chain hoist for building pipes, which effectively solves the problems that the hoisting 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 hoisting 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, with lifting rings fixed on the upper sides of both ends of the flat plate; there are multiple clamping mechanisms on the lower side of the flat plate; the clamping mechanism comprises a horizontal long plate, the long plate and the flat plate are fixed together via multiple fixing rods, there are two mutually meshing gears on the lower side of the long plate, the two gears are symmetrically arranged front and back, the upper end of the central axis of the gear is rotatably connected to the long plate, and there are multiple groups of rotating units connected end to end on the lower side of each gear;

[0006] The rotating unit comprises a vertical cylindrical block, a vertical rectangular rod is arranged on the upper end surface of the cylindrical block, a rectangular block is arranged on the upper side of the rectangular rod, the rectangular block and the rectangular rod are connected together via a universal coupling, and a rectangular tube which can move up and down along the rectangular rod is mounted on the rectangular rod; when the rectangular block and the rectangular tube are in a disengaged state, the two adjacent groups of rotating units are in a flexible state capable of bending; when the rectangular block is in the rectangular tube, the two adjacent groups of rotating units remain vertical and in a rigid state that cannot be bent; the rectangular block at the top is fixed to its corresponding gear; spiral blades are fixed on the outer side of the cylindrical block, and when multiple groups of rotating units are in a vertical state, multiple spiral blades are connected end to end to form a spiral auger; two adjacent rectangular tubes are connected together via multiple steel wires, and the steel wires pass through the cylindrical block;

[0007] A threaded barrel is mounted on the central axis of the gear, and the threaded barrel is connected to the central axis via threads. An annular plate is mounted on the outer side of the threaded barrel, and when the threaded barrel is screwed, the threaded barrel can drive the annular plate to move up and down. Multiple vertical steel wires run through the gear, and the annular plate is connected to the upper end of the rectangular barrel at the uppermost side via multiple steel wires.

[0008] In order to realize the rotation of the gears, a motor is connected to the upper end of the central axis of one of the gears, and the motor is fixed on the long plate.

[0009] In order to prevent the threaded barrel from being separated from the annular plate, a bearing is installed between the threaded barrel and the annular plate, and retaining springs are installed on the upper and lower sides of the bearing.

[0010] In order to adapt to pipes of different lengths, the plate is divided into two sections, a plurality of double-headed screws are arranged between the two sections, nuts are mounted at both ends of the double-headed screws, and the nuts are fixed to the corresponding plates.

[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 the front view of the present invention.

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

[0014] Figure 3 It is a side cross-sectional view of the present invention (in flexible state).

[0015] Figure 4 This is a state diagram when the clamping mechanism in the present invention is in a rigid state.

[0016] Figure 5 for Figure 2 A partial enlarged view of point A in the middle.

[0017] Figure 6 for Figure 4 A partial enlarged view of point B in the middle. 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, with hanging rings 2 fixed on the upper sides of both ends of the flat plate 1; a plurality of clamping mechanisms are arranged on the lower side of the flat plate 1; the clamping mechanisms comprise a horizontal long plate 3, the long plate 3 and the flat plate 1 are fixed together via a plurality of fixing rods 4, two mutually meshing gears 5 are arranged symmetrically front and back, the upper end of the central axis of the gear 5 is rotatably connected to the long plate 3, and a plurality of groups of rotating units connected end to end are arranged on the lower side of each gear 5;

[0020] The rotating unit comprises a vertical cylindrical block 6, a vertical rectangular rod 7 is arranged on the upper end surface of the cylindrical block 6, a rectangular block 8 is arranged on the upper side of the rectangular rod 7, the rectangular block 8 and the rectangular rod 7 are connected together via a universal coupling 9, and a rectangular tube 10 which can move up and down along the rectangular rod 7 is mounted on the rectangular rod 7; when the rectangular block 8 and the rectangular tube 10 are in a disengaged state, the two adjacent groups of rotating units are in a flexible state that can be bent; when the rectangular block 8 is in the rectangular tube 10, the two adjacent groups of rotating units remain vertical and in a rigid state that cannot be bent; the rectangular block 8 at the top is fixed to its corresponding gear 5; a spiral blade 11 is fixed on the outer side of the cylindrical block 6, and when multiple groups of rotating units are in a vertical state, multiple spiral blades 11 are connected end to end to form a spiral auger; two adjacent rectangular tubes 10 are connected together via multiple steel wires, and the steel wires pass through the cylindrical block 6;

[0021] A threaded barrel 12 is mounted on the central axis of the gear 5, and the threaded barrel 12 is connected to the central axis via threads. An annular plate 13 is mounted on the outer side of the threaded barrel 12. When the threaded barrel 12 is screwed, the threaded barrel can drive the annular plate 13 to move up and down. A bearing is installed between the threaded barrel 12 and the annular plate 13. A plurality of vertical steel wires pass through the gear 5, and the annular plate 13 is connected to the upper end of the rectangular barrel 10 at the uppermost side via a plurality of steel wires.

[0022] In order to realize the rotation of the gear 5 , a motor 14 is connected to the upper end of the central axis of one of the gears 5 , and the motor 14 is fixed on the long board 3 .

[0023] In order to prevent the threaded barrel 12 and the annular plate 13 from being separated, a bearing is installed between the threaded barrel 12 and the annular plate 13, and retaining springs are installed on the upper and lower sides of the bearing.

[0024] In order to adapt to pipes of different lengths, the plate 1 is divided into two sections, a plurality of double-headed screws 15 are arranged between the two sections of the plate 1, and nuts 16 are mounted on both ends of the double-headed screws 15, which are fixed to the corresponding plate 1.

[0025] It is worth noting that a bearing is installed between the upper end of the central axis of the gear 5 and the long plate 3; the two spiral augers in the same clamping unit are mirror-symmetrical in the front-to-back direction, that is, the two spiral augers have the same lead and opposite rotation directions; the two front-to-back symmetrical spiral augers contact each other when in use.

[0026] The rectangular rod 7 and the rectangular tube 10 in the present invention can be replaced by a spline shaft and a spline tube, and the corresponding rectangular block 8 also needs to be adaptively changed in appearance.

[0027] For the sake of convenience, it is assumed that the rectangular block 8 is in the initial state when it is outside the rectangular tube 10; in the initial state, the rectangular tube 10 is separated from the rectangular block 8, and at this time, the rectangular block 8 and the rectangular rod 7 can be bent at the universal coupling 9, and the entire clamping mechanism is in a flexible state; if the threaded tube 12 is screwed, the rotation of the threaded tube 12 drives the annular plate 13 to move upward along the central axis of the gear 5, and the annular plate 13 drives multiple rectangular tubes 10 to move upward along the corresponding rectangular rod 7 through the steel wire until the rectangular block 8 is completely in the rectangular tube 10. At this time, the universal coupling 9 loses its degree of freedom, so that the two adjacent rotating units are rigid and cannot be bent, that is, the entire clamping mechanism is in a rigid state.

[0028] When in use, a threaded barrel 12 in the clamping mechanism is screwed so that the multiple groups of rotating units thereon are in a rigid state, and the multiple rotating units on the other gear 5 are flexible. At this time, the multiple rotating units in a rigid state are placed in the intervals between the pipe layers, and the spiral auger separates the multiple steels. The multiple rotating units on the other gear 5 are placed on the upper side of the pipe and the threaded barrel 12 thereon is rotated so that the multiple rotating units thereon are also rigidly connected. At this time, two mirror-symmetrical spiral augers composed of multiple spiral blades 11 on the two gears 5 separate the adjacent multiple pipes separately; the other end of the pipe is also clamped in the same way. Finally, the crane directly lifts the device via 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 14 is energized, and the motor 14 drives the two gears 5 to rotate synchronously in opposite directions. Under the action of the spiral auger, the multiple pipes clamped in the device are lowered one by one.

[0029] The device can also collect pipes placed on the ground one by one. Specifically, all the clamping devices in the device are adjusted to a rigid state, and then the device is vertically hoisted above the pipes to be collected and gradually dropped downward. At the same time, the motor 14 is started to rotate in the opposite direction, and the lower ends of the two spiral augers clamp each other to lift the pipes.

[0030] This device can clamp the steel cage. Specifically: each clamping device is adjusted to a flexible state, and then the two sets of rotating units in each clamping device are respectively placed on the inner and outer sides of the steel cage, and the threaded cylinder 12 is screwed to make it rigid. At this time, the two corresponding spiral augers clamp the multiple steel bars on the steel cage, and then the motor 14 is turned off, and normal lifting can be performed at this time.

[0031] The device uses two spiral blades 11 to clamp multiple building materials simultaneously without contacting each other, thereby avoiding damage to the building materials. In this process, the clamping device can enter the gap between steel pipe layers from both ends without manual assistance, which can effectively reduce the role of manual labor.

[0032] The two counter-rotating spiral augers of the device enable the building materials to be placed one by one, and multiple pipes can be discharged as needed, thus reducing the trouble of manual handling in the later stage, reducing labor and improving construction efficiency.

[0033] The invention can clamp building materials with different diameters and specifications within a certain range.

[0034] 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.

[0035] 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.

Claims

1. A chain hanger for building pipes, characterized in that: It comprises a horizontal plate (1), with lifting rings (2) fixed on the upper sides of both ends of the plate (1); a plurality of clamping mechanisms are provided on the lower side of the plate (1); the clamping mechanisms comprise a horizontal long plate (3), the long plate (3) and the plate (1) are fixed together via a plurality of fixing rods (4), two mutually meshing gears (5) are provided on the lower side of the long plate (3), the two gears (5) are symmetrically arranged front and back, the upper end of the central axis of the gear (5) is rotatably connected to the long plate (3), and a plurality of groups of rotating units connected end to end are provided on the lower side of each gear (5); The rotating unit comprises a vertical cylindrical block (6), a vertical rectangular rod (7) is provided on the upper end surface of the cylindrical block (6), a rectangular block (8) is provided on the upper side of the rectangular rod (7), the rectangular block (8) and the rectangular rod (7) are connected together via a universal coupling (9), and a rectangular tube (10) is mounted on the rectangular rod (7) and can move up and down along the rectangular rod; when the rectangular block (8) and the rectangular tube (10) are in a disengaged state, two adjacent groups of rotating units are in a flexible state capable of bending; when the rectangular block (8) is in the rectangular tube (10), the two adjacent groups of rotating units remain vertical and in a rigid state that cannot be bent; the uppermost rectangular block (8) is fixed to its corresponding gear (5); a spiral blade (11) is fixed on the outer side of the cylindrical block (6), and when multiple groups of rotating units are in a vertical state, multiple spiral blades (11) are connected end to end to form a spiral auger; two adjacent rectangular tubes (10) are connected together via multiple steel wires, and the steel wires penetrate the cylindrical block (6); A threaded cylinder (12) is sleeved on the central axis of the gear (5), the threaded cylinder (12) and the central axis are connected via threads, an annular plate (13) is sleeved on the outer side of the threaded cylinder (12), a bearing is installed between the threaded cylinder (12) and the annular plate (13), and retaining springs are installed on the upper and lower sides of the bearing. A plurality of vertical steel wires penetrate the gear (5), and the annular plate (13) and the upper end of the rectangular cylinder (10) at the uppermost side are connected together via a plurality of steel wires.

2. A chain hanger for building pipes according to claim 1, characterized in that: The upper end of the central axis of one of the gears (5) is connected to a motor (14), and the motor (14) is fixed on the long strip plate (3).

3. A chain hanger for building pipes according to claim 1, characterized in that: The plate (1) is divided into two sections, a left section and a right section. A plurality of double-ended screws (15) are arranged between the two sections of the plate (1). Nuts (16) are mounted on both ends of the double-ended screws (15). The nuts (16) are fixed to the corresponding plate (1).

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