Simple device for hoisting indoor hollow floor material

Abstract

The utility model relates to a simple device for lifting indoor hollow floor materials, which is characterized in that two parallel and symmetrical inclined brackets are arranged in a lifting appliance, and various cross rods are connected onto the inclined brackets. A small winch is mounted on the bearing cross rod; a fixed pulley connected with a winch through a lifting steel cable is mounted on the hanger cross rod; the lower cross rod and the upper cross rod in the middle are jointly provided with a support flat supporting structure, two inclined supporting rods in the support flat supporting structure jointly fix two front extending rods and a horizontal cross rod, and the front ends of the front extending rods are in lap joint with the upper surface of the end of the hollow layer; the horizontal cross rod abuts against the cross section of the end of the hollowed-out layer. The support flat supporting structure abuts against the cantilever layer to form a hoisting space, and the winch is started to achieve material hoisting. The lifting platform is simple in structure, free of counter weight and base, light in weight, capable of being rapidly disassembled and assembled, flexible and convenient to move and capable of changing work sites at will. The lifting appliance is high in turnover utilization rate and strong in applicability, and can lift materials to a hollow floor above the floor on any floor.

Description

Technical Field

[0001] This utility model relates to a building construction equipment, and more particularly to a simple device for hoisting materials in indoor open-plan floors of buildings. Background Technology

[0002] In the construction of high-rise multi-story buildings, transporting materials from the lower floors to the upper atriums is challenging, as large hoisting machinery and construction elevators are ineffective. In such cases, manual handling or hoisting by workers is typically required. However, manual handling or hoisting is labor-intensive, inefficient, and slows down construction. To address this issue, the construction industry has innovated several small indoor hoisting machines. Chinese Patent Publication No. CN 203212241 U discloses "A Lightweight Indoor Hoist," which includes a base, column, rotating arm, motor, and wire rope guide, and incorporates a rear counterweight. Chinese Patent Publication No. CN 110155889 A discloses "A Small Indoor Cable Hoist," which includes a base, fixed frame, cantilever, hydraulic cylinder, motor, winding roller, and multiple counterweights. The two types of equipment mentioned above are essentially scaled-down versions of large hoisting machinery. Both types of hoisting equipment share the following drawbacks: First, their structures are complex, requiring bases and counterweights to prevent tipping, resulting in large size, difficulty in transportation, and time-consuming and labor-intensive relocation to any floor, delaying construction progress. Second, they have many components, making manufacturing difficult and costly, and they cannot be arbitrarily disassembled. Third, due to their large size, they are difficult to move or even unusable when placed in narrow working spaces. Fourth, when placed vertically on the building roof, the crane's function overlaps with that of large hoisting machinery, resulting in waste of equipment and energy. Furthermore, Chinese Patent Publication No. CN 208776229 U discloses "A Simple Hoist." This hoist is fixed to an interior wall of a building. A wall column within the hoist is rotatably connected to a horizontal support via a rotating shaft. The horizontal support is slidably connected to a motor, which can move along the length of the support and also rotate via the rotating shaft to transport materials to surrounding areas. However, because this hoist is fixed to a wall, the suspended materials can only be transported within the interior horizontal space and cannot be transported to higher floors. The crane must not be disassembled or moved to a different work site at will. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing indoor hoists and provide a simple device for hoisting materials in indoor open-plan floors. This device is simple in structure, requires no counterweight or base, has small size, weight and space occupation, is easy to move, has a stable structure, is safe to use, has strong applicability, can be quickly disassembled and assembled, and can hoist materials to the upper open-plan floor in any narrow space on any floor.

[0004] The purpose of this utility model is achievable. This utility model provides a simple device for hoisting materials in an indoor open-plan floor, comprising a lower floor and an open-plan floor above it. The device is characterized by: two symmetrically and parallelly arranged inclined supports; a supporting crossbar is fixed to the front of the lower part of each inclined support, and a supporting crossbar is fixed to the rear; a small winch is fixed to the supporting crossbar via a combined structure; a binding hoist is fixed to the supporting crossbar, and the winch is connected to the supporting crossbar via the binding hoist; a medium reinforcing crossbar is fixed to the rear of the lower middle part of the inclined support; and a reinforcing crossbar is fixed to the rear of the upper middle part of the inclined support. A lower crossbar and an upper crossbar are fixed at intervals. The lower and upper crossbars are jointly installed and fixed to a support structure. The front end of the support structure overlaps and rests against the front end of the cantilevered floor to form a hoisting space. A lifting crossbar is fixed to the upper rear of the inclined support, and an upper reinforcing crossbar is fixed to the top. A pair of connecting fasteners are installed on the lifting crossbar. The upper half of the connecting fastener is welded to the lifting crossbar, and the lower half is connected to a fixed pulley. The winch is connected to the fixed pulley through a lifting steel cable with a hook. Each of the two column feet at the bottom of the inclined support is fitted with an anti-slip device installed on the lower floor of the room.

[0005] This utility model discloses a simple device for hoisting materials in an indoor open-plan floor. The support structure consists of a lower horizontal bar, an upper horizontal bar, two diagonal braces, two forward extension rods, and a horizontal crossbar. The two forward extension rods are horizontally and parallelly arranged on the inner side near the diagonal support. One end of each forward extension rod is connected to the upper horizontal bar at a right angle, and the other end of each forward extension rod is welded to the horizontal crossbar at a right angle. The two diagonal braces are located inside the two forward extension rods. The upper end of each diagonal brace rests on the horizontal crossbar and is fixedly connected to it. The lower end of each diagonal brace rests on the lower horizontal bar and is fixedly connected to it. The portions of the two forward extension rods that extend beyond the horizontal crossbar overlap with the upper surface of the open-plan floor end. The horizontal crossbar rests laterally against the cross-section of the open-plan floor end.

[0006] This utility model discloses a simple device for hoisting materials in indoor open floors. The center of gravity of the winch is located at the midpoint of the supporting crossbar, and the center of gravity of the connecting fastener is located at the midpoint of the lifting crossbar. The assembly structure for fixing the winch consists of a winch base, bolts, and U-shaped clamps. The U-shaped clamps are fastened to the supporting crossbar, and the winch is fixed to the U-shaped clamps by bolts through the winch base. There are two binding hoops on the crossbar, which are respectively bound to both ends of the winch main unit.

[0007] This utility model discloses a simple device for hoisting materials in indoor open floors. The anti-slip device consists of positioning wooden blocks and steel nails. The positioning wooden blocks are fixed to the floor of the lower floor of the room by the steel nails.

[0008] This utility model discloses a simple device for hoisting materials in an indoor open-plan floor. The lifting steel cable has a sliding ring on one end of the hook, and a traction rope is connected to the sliding ring 13. The other end of the traction rope is located above the open-plan floor and is manually held.

[0009] This utility model discloses a simple device for hoisting materials in indoor open floors. The inclined support, all horizontal bars, the front extension bar, the horizontal horizontal bar, and the diagonal brace are all made of φ48.3mm steel pipe. The inclined support and all horizontal bars, as well as the upper horizontal bar and the front extension bar, are connected to each other in a typical structure by right-angle fasteners. The diagonal brace, the horizontal horizontal bar, and the lower horizontal bar are all connected to each other in a typical structure by swivel fasteners.

[0010] This invention, a simple device for hoisting materials in indoor open-plan floors, differs from existing technologies in that it incorporates two parallel and symmetrical inclined supports, each connected to various functional crossbars. A small winch is mounted on the load-bearing crossbar; a fixed pulley connected to the winch via a lifting cable is mounted on the lifting crossbar; a horizontal support structure is mounted on the lower and upper crossbars in the middle, where two inclined braces together fix two forward extensions and a horizontal crossbar. The front ends of the forward extensions overlap the upper surface of the open-plan floor end; the horizontal crossbar rests against the cross-section of the open-plan floor end. The horizontal support structure, resting against the open-plan floor, forms a hoisting space; starting the winch allows for material hoisting. Anti-slip devices at the bottom of the inclined supports ensure stable operation and prevent slippage. This invention features a simple structure, requires no counterweight or base, is lightweight, can be quickly assembled and disassembled, is easily moved, occupies little space, and can be used in various work locations. It has a high turnover rate and strong applicability. It can lift materials from any floor to the open space above it, making it particularly suitable for use in small spaces where large hoisting machinery and various construction elevators cannot reach.

[0011] The following description, in conjunction with the accompanying drawings, further illustrates a simple device for hoisting materials in indoor open-plan floors according to the present invention. The drawings are merely schematic illustrations of the basic structure of the invention and therefore only show the structures relevant to the present invention. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of a simple device for hoisting materials in an indoor open-plan floor, according to the present invention.

[0013] Figure 2 This is a side view (including application status) of a simple device structure for hoisting materials in an indoor open floor according to the present invention.

[0014] Figure 3 for Figure 2 A schematic diagram of the A-direction structure (support flat support structure).

[0015] Figure 4 for Figure 1 and Figure 2 A typical schematic diagram of a combined connection structure.

[0016] Figure 5 for Figure 1 and Figure 2 A typical schematic diagram of a combined connection structure.

[0017] Figure 6 Detailed diagram of the winch installation structure. Detailed Implementation

[0018] like Figure 1 , Figure 2 As shown, this utility model discloses a simple device for hoisting materials in an indoor open-plan floor, comprising a lower floor n and an upper open-plan floor n+1. The device comprises two symmetrically arranged, parallel inclined supports 1. A supporting crossbar 2.1 is fixed to the front of the lower part of each inclined support 1, and a supporting crossbar 2.2 is fixed to the rear. A small winch 9 is fixed to the supporting crossbar 2.1 via a combined structure. A binding hoist 15 is fixed to the supporting crossbar 2.2. The winch 9 is connected to the supporting crossbar 2.2 via the binding hoist 15. A reinforcing crossbar 3 is fixed to the lower middle rear of each inclined support 1. A lower crossbar 4.1 and an upper crossbar 4.2 are fixed at intervals to the upper middle rear of each inclined support 1. The lower crossbar 4.1 and the upper crossbar 4.2 are jointly installed and fixed to a flat support structure. The front end of the flat support structure overlaps and rests against the front end of the open-plan floor n+1 to form a hoisting space. A lifting crossbar 5 is fixed to the upper rear of the inclined support 1. An upper reinforcing crossbar 6 is fixed to the top. A pair of connecting fasteners 7 are installed on the lifting crossbar 5. The upper half of the connecting fastener 7 is welded to the lifting crossbar 5, and the lower half is connected to a fixed pulley 8. The winch 9 is connected to the fixed pulley 8 via a lifting steel cable 10 with a hook. Each of the two column feet at the bottom of the inclined support 1 is fitted with an anti-slip device installed on the lower floor n of the room.

[0019] like Figure 3As shown, the support structure consists of a lower horizontal bar 4.1, an upper horizontal bar 4.2, two diagonal braces 4.3, two forward extension bars 4.4, and a horizontal bar 4.5. The two forward extension bars 4.4 are horizontally and parallelly positioned on the inner side near the inclined support 1. One end of each forward extension bar 4.4 is connected to the upper horizontal bar 4.2 at a right angle, and the other end is welded to each of the horizontal bars 4.5 at a right angle. The two diagonal braces 4.3 are located inside the two forward extension bars 4.4. The upper end of each diagonal brace 4.3 rests on and is fixedly connected to the horizontal bar 4.5, while the lower end rests on and is fixedly connected to the lower horizontal bar 4.1. The portions of the two forward extension bars 4.4 extending beyond the horizontal bar 4.5 overlap with the upper surface of the cantilevered layer n+1, and the horizontal bar 4.5 laterally abuts against the cross-section of the cantilevered layer n+1.

[0020] like Figure 2 As shown, the center of gravity of winch 9 is located at the midpoint of the supporting crossbar 2.1. The center of gravity of the connecting fastener 7 is located at the midpoint of the lifting crossbar 5.

[0021] like Figure 6 As shown, the assembly structure of the fixed winch 9 consists of a winch base 18, bolts 19, and U-shaped clamps 20. The U-shaped clamps 20 are fastened to the bearing crossbar 2.1, and the winch 9 is fixed to the U-shaped clamps 20 via the winch base 18 and bolts 19. There are two binding hoops 15 on the crossbar 2.2, which are respectively bound to both ends of the main body of the winch 9 (see...). Figure 2 ).

[0022] like Figure 1 , Figure 2 As shown, the anti-slip device consists of positioning wooden blocks 12 and steel nails 11. The positioning wooden blocks 12 are fixed to the floor of the lower level n of the room by the steel nails 11.

[0023] like Figure 2 As shown, the lifting cable 10 has a sliding ring 13 on one end of the hook. The sliding ring 10 can slide up and down on the lifting cable 10. A traction rope 14 is connected to the sliding ring 13, and the other end of the traction rope 14 is held by a worker above the open floor n+1. When a simple device for hoisting materials in an indoor open floor lifts the material to a height above the open floor n+1 using a winch 9, lifting cable 10, and fixed pulley 8, the worker manually pulls the traction rope to guide the delivered material correctly to the work site.

[0024] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, this utility model utilizes traditional right-angle fasteners 16 and swivel fasteners 17 to achieve the purpose of quick assembly and disassembly of the simple lifting device in any work site. In this utility model, a simple device for lifting materials in indoor open floors, the inclined support 1, all horizontal bars, the front extension bar 4.4, the horizontal horizontal bar 4.5, and the diagonal brace 4.3 are all made of φ48.3mm steel pipe. The inclined support 1 and all horizontal bars, as well as the upper horizontal bar 4.2 and the front extension bar 4.4, are connected by right-angle fasteners 16 to form typical structure I. The diagonal brace 4.3, the horizontal horizontal bar 4.5, and the lower horizontal bar 4.1 are connected by swivel fasteners 17 to form typical structure II.

[0025] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A simple device for hoisting materials in an indoor open-plan floor, comprising a lower indoor floor n and an upper open-plan floor n+1, characterized in that: Two symmetrical and parallel inclined supports (1) are arranged. A bearing crossbar (2.1) is fixed to the front of the lower part of the inclined support (1), and a supporting crossbar (2.2) is fixed to the rear. A small winch (9) is fixed on the bearing crossbar (2.1) through a combined structure. A binding hoop (15) is fixed on the supporting crossbar (2.2). The winch (9) is connected to the supporting crossbar (2.2) by binding with the binding hoop (15). A middle reinforcing crossbar (3) is fixed to the rear of the lower middle part of the inclined support (1). A lower crossbar (4.1) and an upper crossbar (4.2) are fixed at a distance from the rear of the upper middle part of the inclined support (1). The lower crossbar (4.1) and the upper crossbar (4.2) are fixed to the ... The upper crossbar (4.2) is installed together to fix a support structure. The front end of the support structure overlaps and relies on the front end of the cantilevered floor n+1 to form a hoisting space. A hoisting crossbar (5) is fixed at the upper rear of the inclined support (1), and an upper reinforcing crossbar (6) is fixed at the top. A pair of connecting fasteners (7) is installed on the hoisting crossbar (5). The upper half ring of the connecting fastener (7) is welded to the hoisting crossbar (5), and the lower half ring is connected to a fixed pulley (8). The winch (9) is connected to the fixed pulley (8) through a lifting steel cable (10) with a hook. The two column feet at the bottom of the inclined support (1) are each fitted with an anti-slip device set in the lower floor n of the room.

2. A simple device for hoisting materials in indoor open-plan floors according to claim 1, characterized in that: The support structure consists of a lower crossbar (4.1), an upper crossbar (4.2), two diagonal braces (4.3), two forward extension rods (4.4), and a horizontal crossbar (4.5). The two forward extension rods (4.4) are horizontally and parallelly arranged on the inner side near the diagonal support (1). One end of each forward extension rod (4.4) is above the upper crossbar (4.2) and connected to it at a right angle. The other end of each forward extension rod (4.4) is perpendicular to the horizontal crossbar (4.5). The two diagonal braces (4.3) are located inside the two forward extension rods (4.4). The upper end of the diagonal brace (4.3) rests on the horizontal crossbar (4.5) and is fixedly connected to it. The lower end of the diagonal brace (4.3) rests on the lower crossbar (4.1) and is fixedly connected to it. The part of the two forward extension rods (4.4) that protrudes from the horizontal crossbar (4.5) overlaps with the upper surface of the end of the cantilever layer n+1. The horizontal crossbar (4.5) rests laterally against the cross-section of the end of the cantilever layer n+1.

3. A simple device for hoisting materials in indoor open-plan floors according to claim 1 or 2, characterized in that: The center of gravity of the winch (9) is located at the midpoint of the bearing crossbar (2.1), and the center of gravity of the connecting fastener (7) is located at the midpoint of the lifting crossbar (5). The combined structure for fixing the winch (9) consists of a winch base (18), bolts (19) and U-shaped clamps (20). The U-shaped clamps (20) are clamped on the bearing crossbar (2.1). The winch (9) is fixed to the U-shaped clamps (20) by bolts (19) through the winch base (18). There are two binding hoops (15) on the crossbar (2.2), which are respectively bound to both ends of the main body of the winch (9).

4. A simple device for hoisting materials in indoor open-plan floors according to claim 1, characterized in that: The anti-slip device consists of a positioning wooden block (12) and a steel nail (11), and the positioning wooden block (12) is fixed to the ground of the lower floor n of the room by the steel nail (11).

5. A simple device for hoisting materials in indoor open-plan floors according to claim 1, characterized in that: The lifting cable (10) has a sliding ring (13) on one end of the hook, and a traction rope (14) is connected to the sliding ring (13). The other end of the traction rope (14) is held manually on the cantilevered layer n+1.

6. A simple device for hoisting materials in indoor open-plan floors according to claim 1 or 2, characterized in that: The inclined support (1), all crossbars, the front extension bar (4.4), the horizontal crossbar (4.5), and the diagonal brace (4.3) are all made of φ48.3mm steel pipe. The inclined support (1) and all crossbars, as well as the upper crossbar (4.2) and the front extension bar (4.4), are connected to form typical structure I by right-angle fasteners (16). The diagonal brace (4.3), the horizontal crossbar (4.5), and the lower crossbar (4.1) are connected to form typical structure II by swivel fasteners (17).

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