A tower crane spreader for transporting sheet materials

Abstract

The present invention provides a tower crane sling for transporting building boards, which relates to the field of tower crane slings and includes two supporting pipes with cavities. One end of each of the two supporting pipes is inserted with a supporting pipe that moves along the inner cavity of the supporting pipe. One end of each of the two supporting pipes is respectively inserted into the other end of the two supporting pipes. The two supporting pipes and the two supporting pipes form a square shape. Traction members are arranged on the outer sides of the two supporting pipes and the two supporting pipes. In the present invention, the supporting pipes and the supporting pipes expand outwards, so that the size of the square formed by the supporting pipes and the supporting pipes increases and is sleeved outside the building formwork. Then, through the winch, the rope passes through the support ring to contract the supporting pipes and the supporting pipes inwards, so that the supporting plate moves to the bottom end of the building formwork with a tray, and the supporting plate supports the building formwork. At the same time, due to the installation position of the traction members, the building formwork is wrapped on all four sides during transportation, avoiding the situation of falling when the building formwork rises.

Description

Technical Field

[0001] The present invention relates to the field of tower crane lifting tools, and particularly to a tower crane lifting tool for transporting building boards. Background Art

[0002] A tower crane is one of the most commonly used lifting equipment on construction sites, also known as a "tower hoist". It is extended (heightened) section by section (abbreviated as "standard section") and is used to lift construction raw materials such as steel bars, wooden beams, concrete, and steel pipes for construction. A tower crane is an essential equipment on construction sites.

[0003] When constructing high-rise buildings, a tower crane is used to hoist building forms, which is a way of transporting building forms. However, when hoisting building forms, ropes are mostly used for bundling before hoisting. Since the surface of the building form is smooth, the hoisting stability is poor. It is common for the building form to fall due to manual bundling during hoisting. For this situation, the building form is hoisted, and then workers place ropes in a cross shape with the direction of the bundled ropes under the building form to re-bundle the building form. However, in reality, re-bundling will pose a safety hazard to the workers and reduce the hoisting speed of the building form. Secondly, when the building form is transported to the construction site, it is placed with pads or directly on the ground. Placing the building form directly on the ground will require auxiliary tools to lift it or manual movement during hoisting, resulting in inconvenient transportation of the building form. Therefore, a tower crane lifting tool that makes the transportation of building forms convenient, fast, and avoids falling is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a tower crane lifting tool for transporting building boards to solve the technical problems that when hoisting building forms, ropes are mostly used for bundling before hoisting. Since the surface of the building form is smooth, the hoisting stability is poor. It is common for the building form to fall due to manual bundling during hoisting. For this situation, the building form is hoisted, and then workers place ropes in a cross shape with the direction of the bundled ropes under the building form to re-bundle the building form. However, in reality, re-bundling will pose a safety hazard to the workers and reduce the hoisting speed of the building form. Secondly, when the building form is transported to the construction site, it is placed with pads or directly on the ground. Placing the building form directly on the ground will require auxiliary tools to lift it or manual movement during hoisting, resulting in inconvenient transportation of the building form.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions to achieve:

[0006] A tower crane sling for transporting sheet materials, comprising two supporting pipes with cavities. One end of each of the two supporting pipes is inserted with a supporting pipe that moves along the inner cavity of the supporting pipe. One end of each of the two supporting pipes is respectively inserted into the other end of the two supporting pipes, and the two supporting pipes and the two supporting pipes form a square shape;

[0007] Traction members are arranged on the outer sides of the two supporting pipes and the two supporting pipes. The traction members include connecting pipes connected to the supporting pipes and the supporting pipes, and sling rings inserted into the inner sides of the connecting pipes;

[0008] Supporting rings with through holes are arranged at the tops of the two supporting pipes and the two supporting pipes. A rope is arranged in the through holes of the plurality of supporting rings, and a wire winder connected to the supporting pipe is arranged at one end of the rope;

[0009] A plurality of supporting plates are arranged on the inner sides of the two supporting pipes and the two supporting pipes. The supporting plates include supporting plates fixed to the inner sides of the supporting pipes and the supporting pipes, and reinforcing ribs fixed below the supporting plates and connected to the supporting pipes and the supporting pipes.

[0010] Preferably, the supporting plate further includes a shovel plate arranged at one end of the supporting plate and a pin shaft inserted into the inner sides of one ends of the supporting plate and the shovel plate.

[0011] Preferably, one end of the shovel plate is provided with an inclined surface, and the inclination angle of the inclined surface of the shovel plate is 30 degrees to 75 degrees.

[0012] Preferably, the two supporting pipes and the two supporting pipes are each provided with a second spring, and one ends of the plurality of second springs are respectively connected to the other ends of the two supporting pipes and the two supporting pipes.

[0013] Preferably, the wire winder includes a housing fixed to the other end of the supporting pipe and a winding roller arranged inside the housing and penetrating the housing. A ratchet wheel is sleeved at one end of the winding roller and above the housing, and a handle is inserted into the side surface of the top end of the ratchet wheel.

[0014] Preferably, the top of one end of the reinforcing rib is inclined below the shovel plate.

[0015] Preferably, a key groove is arranged at the top end of the winding roller.

[0016] Preferably, the wire winder further includes a ratchet tooth installed at the top end of the housing and connected to the ratchet wheel, and a first spring arranged on the side surface of the ratchet tooth and connected to the housing.

[0017] Preferably, a baffle that moves along the inner side of the supporting pipe is arranged inside the other end of the supporting pipe, and the baffle of the supporting pipe is connected to the second spring inside the supporting pipe.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention expands outward through the support tube and the support pipe, increasing the size of the square formed by the support tube and the support pipe and sleeving it outside the building formwork. Then, through the winch, the rope passes through the support ring to contract the support tube and the support pipe inward, moving the support plate to the bottom end of the building formwork with a tray, enabling the support plate to support the building formwork. At the same time, due to the installation position of the traction member, the building formwork is wrapped on all four sides during transportation, preventing the building formwork from falling during lifting.

[0020] 2. After completing the corresponding contraction operation, the present invention drives the shovel plate by the support tube and the support pipe. At the same time, the shovel plate rotates at one end of the support plate, making the bottom end of the shovel plate closely fit the ground. The reinforcing rib prevents the shovel plate from being in a vertical state, and the bottom end of the shovel plate is inserted between the ground and the building formwork. Through the inclined surface of the shovel plate, the building formwork is moved above the reinforcing rib, avoiding the situation where the building formwork cannot be directly hoisted when directly placed on the ground, resulting in the need for manual lifting or moving of the building formwork for transportation. At the same time, the transportation operation of Embodiment 1 enables the transportation of the building formwork.

[0021] 3. Before or after the transportation operation, the present invention expands the support tube and the support pipe outward through the elastic force of the second spring, eliminating the need for manual expansion and enabling continuous and fast transportation of the building formwork. Description of the Drawings

[0022] Figure 1 Front view schematic diagram of the overall structure of the present invention;

[0023] Figure 2 Rear view schematic diagram of the overall structure of the present invention;

[0024] Figure 3 Schematic diagram of the structure at A of the present invention;

[0025] Figure 4 Cross-sectional view schematic diagram after the support tube and the support pipe at A of the present invention are connected;

[0026] Figure 5 Expansion schematic diagram between the support tube and the support pipe of the present invention;

[0027] Figure 6 Explosion schematic diagram of the support plate of the present invention;

[0028] Figure 7 Enlarged schematic diagram at the winch of the present invention;

[0029] Figure 8 Cross-sectional view schematic diagram after expansion between the support tube and the support pipe of the present invention;

[0030] Reference numerals: 1, support pipe; 2, support plate; 21, support board; 22, reinforcing rib; 23, pin shaft; 24, shovel plate; 3, winch; 31, ratchet tooth; 32, first spring; 33, ratchet wheel; 34, winding roller; 35, handle; 36, housing; 4, support pipe; 5, support ring; 6, second spring; 7, rope; 8, towing member; 81, connecting pipe; 82, lifting ring. Detailed implementation mode

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present invention.

[0032] The specific embodiments of the present invention will be described below with reference to the drawings.

[0033] Embodiment 1

[0034] A tower crane spreader for transporting plates includes two support pipes 1 with cavities. One end of each of the two support pipes 1 is inserted with a support pipe 4 that moves along the inner cavity of the support pipe 1. One end of each of the two support pipes 4 is respectively inserted into the other end of the two support pipes 1. The two support pipes 1 and the two support pipes 4 form a square shape. It should be noted that since the sizes of building templates are mostly standard 915mm×1830mm, 1220mm×2440mm, 1250mm×2500mm, therefore, the square size can be arranged according to the plate size or three spreaders with different sizes can be used for hoisting;

[0035] Towing members 8 are arranged on the outer sides of the two support pipes 1 and the two support pipes 4. The towing member 8 includes a connecting pipe 81 connected to the support pipe 1 and the support pipe 4 and a lifting ring 82 inserted inside the connecting pipe 81. Among them, the connecting pipe 81 and the lifting ring 82 are threadedly connected. And it should be noted that the towing member 8 is installed at the center of the four sides of the square;

[0036] Support rings 5 with through holes are arranged at the tops of the two support pipes 1 and the two support pipes 4. A rope 7 is arranged in the through holes of the plurality of support rings 5. One end of the rope 7 is provided with a winch 3 connected to the support pipe 1;

[0037] A plurality of support plates 2 are arranged inside the two support pipes 1 and the two support pipes 4. The support plate 2 includes a support board 21 fixed to the inner sides of the support pipe 1 and the support pipe 4 and a reinforcing rib 22 fixed below the support board 21 and connected to the support pipe 1 and the support pipe 4.

[0038] Specifically, please refer to Figure 1-8, in this example, a tower crane spreader capable of transporting formwork is proposed. This spreader combines components such as a support pipe 1, a support plate 2, a wire reel 3, a support tube 4, a support ring 5, a rope 7, a traction member 8, etc. The aim is to move the two support pipes 1 and the two support tubes 4 towards the ends of the support pipe 1 and the support tube 4 respectively, so that the size of the square formed by the support pipe 1 and the support tube 4 increases. And the traction member 8 is connected to the tower crane through a chain or a steel wire rope, so that the square is sleeved outside the formwork. Then, the wire reel 3 winds the rope 7 to make the rope 7 move inside the multiple support rings 5, so that the rope 7 contracts the support pipe 1 and the support tube 4 inward through the support rings 5, and the support pipe 1 and the support tube 4 drive the support plate 2 to move to the bottom end of the formwork with a tray, and the support plate 2 supports the formwork. At the same time, through the installation position of the traction member 8, the formwork is in a four-sided wrapped state during transportation, avoiding the situation of falling when the formwork rises, and making the transportation of the formwork safer.

[0039] The following is an explanation of the specific configuration of the wire reel 3:

[0040] Refer to Figure 1-7 , the wire reel 3 includes a housing 36 fixed to the other end of the support pipe 1 and a winding roller 34 provided inside the housing 36 and passing through the housing 36. Among them, it should be noted that a keyway is provided at the top of the winding roller 34, and the keyway can be connected to the motor through a coupling, so that the winding roller 34 has a large torsional force. A ratchet 33 is sleeved at one end of the winding roller 34 and above the housing 36. Among them, the ratchet 33 is connected to the rope 7, so that one end of the rope 7 is wound and tightened, and a handle 35 is inserted into the side surface of the top of the ratchet 33.

[0041] Refer to Figure 1-7 , the wire reel 3 further includes a ratchet tooth 31 installed at the top of the housing 36 and connected to the ratchet 33, and a first spring 32 provided on the side of the ratchet tooth 31 and connected to the housing 36.

[0042] Embodiment 2

[0043] A tower crane spreader for transporting plates includes two support pipes 1 with cavities. One end of each of the two support pipes 1 is inserted with a support tube 4 that moves along the inner cavity of the support pipe 1. One end of each of the two support tubes 4 is inserted into the other end of each of the two support pipes 1 respectively, and the two support pipes 1 and the two support tubes 4 form a square shape;

[0044] Traction members 8 are arranged on the outer sides of the two support pipes 1 and the two support tubes 4. The traction member 8 includes a connecting pipe 81 connected to the support pipe 1 and the support tube 4 and a lifting ring 82 inserted inside the connecting pipe 81;

[0045] A support ring 5 with through holes is provided at the top ends of the two support pipes 1 and the two support tubes 4. A rope 7 is arranged in the through holes of the plurality of support rings 5, and a winch 3 connected to the support pipe 1 is provided at one end of the rope 7;

[0046] A plurality of support plates 2 are arranged on the inner sides of the two support pipes 1 and the two support tubes 4. The support plate 2 includes a support plate 21 fixed to the inner sides of the support pipe 1 and the support tube 4, and a reinforcing rib 22 fixed below the support plate 21 and connected to the support pipe 1 and the support tube 4.

[0047] Refer to Figure 1-6 , the support plate 2 further includes a shovel plate 24 arranged at one end of the support plate 21 and a pin shaft 23 inserted into the inner sides of one ends of the support plate 21 and the shovel plate 24. The shovel plate 24 can rotate at one end of the support plate 21. It should be noted that an inclined surface is provided at one end of the shovel plate 24, and the inclination angle of the inclined surface of the shovel plate 24 is 30 degrees to 75 degrees, and one end of the reinforcing rib 22 is inclined below the shovel plate 24 at the top. The height of the reinforcing rib 22 is the distance dimension between the bottom end of the support plate 21 and the bottom end of the support pipe 1.

[0048] Specifically, please refer to Figure 1-8 , in this embodiment, a tower crane spreader capable of transporting building templates is proposed. The spreader combines components such as the support pipe 1, the support plate 2, the winch 3, the support tube 4, the support ring 5, the rope 7, and the traction member 8. The purpose is to wind the rope 7 by the winch 3 so that the rope 7 contracts the support pipe 1 and the support tube 4 inward through the support ring 5, while the support pipe 1 and the support tube 4 drive the shovel plate 24 to move. At the same time, the shovel plate 24 rotates at one end of the support plate 21, so that the bottom end of the shovel plate 24 is in close contact with the ground. And the vertical state of the shovel plate 24 is avoided by the reinforcing rib 22, and the bottom end of the shovel plate 24 is inserted between the ground and the building template. And through the inclined surface of the shovel plate 24, the building template is moved above the reinforcing rib 22, avoiding that when the building template is directly placed on the ground, it cannot be directly hoisted, resulting in the need for manual lifting or moving of the building template for transportation. At the same time, the transportation operation of Embodiment 1 can be used to transport the building template.

[0049] Embodiment 3

[0050] A tower crane spreader for transporting plates includes two support pipes 1 with cavities. One ends of the two support pipes 1 are respectively inserted with support tubes 4 that move along the inner cavities of the support pipes 1. One ends of the two support tubes 4 are respectively inserted into the other ends of the two support pipes 1, and the two support pipes 1 and the two support tubes 4 form a square shape;

[0051] Traction members 8 are arranged on the outer sides of the two support pipes 1 and the two support tubes 4. The traction member 8 includes a connecting pipe 81 connected to the support pipe 1 and the support tube 4 and a lifting ring 82 inserted into the inner side of the connecting pipe 81;

[0052] A support ring 5 with through holes is provided at the top ends of two supporting pipes 1 and two support pipes 4. A rope 7 is arranged in the through holes of multiple support rings 5, and a winch 3 connected to the supporting pipe 1 is provided at one end of the rope 7;

[0053] Multiple support plates 2 are arranged on the inner sides of the two supporting pipes 1 and the two support pipes 4. The support plate 2 includes a support plate 21 fixed to the inner sides of the supporting pipe 1 and the support pipe 4, and a reinforcing rib 22 fixed below the support plate 21 and connected to the supporting pipe 1 and the support pipe 4.

[0054] Refer to Figure 4 、 Figure 8 , second springs 6 are provided on both the two supporting pipes 1 and the two support pipes 4. One ends of multiple second springs 6 are respectively connected to the other ends of the two supporting pipes 1 and the two support pipes 4. It should be noted that an opening is provided on the side surface of the support pipe 4, and a baffle plate passing through the opening of the support pipe 4 is provided inside the other end of the supporting pipe 1, and the baffle plate is connected to the second spring 6, so that the baffle plate of the supporting pipe 1 moves along the inner side of the support pipe 4.

[0055] Specifically, please refer to Figure 1-8 , in this embodiment, a tower crane spreader capable of transporting formwork is proposed. The spreader combines components such as a supporting pipe 1, a support plate 2, a winch 3, a support pipe 4, a support ring 5, a rope 7, a traction member 8, etc. It is intended that after the formwork transportation is completed, through the elastic force of the second spring 6, the supporting pipe 1 and the support pipe 4 expand outward, avoiding the need for manual expansion and enabling continuous and fast transportation of the formwork.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A tower crane spreader for transporting sheet materials, characterized in that: It includes two supporting tubes (1) with cavities. One end of each of the two supporting tubes (1) is inserted with a supporting tube (4) that moves along the inner cavity of the supporting tube (1). One end of each of the two supporting tubes (4) is respectively inserted into the other end of each of the two supporting tubes (1). The two supporting tubes (1) and the two supporting tubes (4) form a square shape; Traction members (8) are arranged on the outer sides of the two supporting tubes (1) and the two supporting tubes (4). The traction member (8) includes a connecting tube (81) connected to the supporting tube (1) and the supporting tube (4), and a hanging ring (82) inserted inside the connecting tube (81); Supporting rings (5) with through holes are arranged at the tops of the two supporting tubes (1) and the two supporting tubes (4). A rope (7) is arranged in the through holes of the plurality of supporting rings (5). One end of the rope (7) is provided with a winding device (3) connected to the supporting tube (1); A plurality of supporting plates (2) are arranged on the inner sides of the two supporting tubes (1) and the two supporting tubes (4). The supporting plate (2) includes a supporting plate (21) fixed to the inner sides of the supporting tube (1) and the supporting tube (4), and a reinforcing rib (22) fixed below the supporting plate (21) and connected to the supporting tube (1) and the supporting tube (4); An opening is provided on the side surface of the supporting tube (4). A baffle plate penetrating the opening of the supporting tube (4) is arranged inside the other end of the supporting tube (1), and the baffle plate is connected to a second spring (6) so that the baffle plate of the supporting tube (1) moves along the inner side of the supporting tube (4); The supporting plate (2) further includes a shovel plate (24) arranged at one end of the supporting plate (21), and a pin shaft (23) inserted inside one end of the supporting plate (21) and the shovel plate (24); One end of the shovel plate (24) is provided with an inclined surface, and the top of one end of the reinforcing rib (22) is inclined below the shovel plate (24); The two supporting tubes (1) and the two supporting tubes (4) are both provided with second springs (6). One ends of the plurality of second springs (6) are respectively connected to the other ends of the two supporting tubes (1) and the two supporting tubes (4).

2. The tower crane sling for sheet material transportation according to claim 1, characterized in that: The inclined angle of the inclined surface of the shovel plate (24) is 30 degrees to 75 degrees.

3. The tower crane spreader for transporting plates according to claim 1, characterized in that: The winding device (3) includes a housing (36) fixed to the other end of the supporting tube (1), and a winding roller (34) arranged inside the housing (36) and penetrating the housing (36). A ratchet wheel (33) is sleeved at one end of the winding roller (34) and above the housing (36). A handle (35) is inserted on the side surface of the top of the ratchet wheel (33).

4. The tower crane sling for transporting plates according to claim 3, wherein: A key groove is provided at the top of the winding roller (34).

5. The tower crane sling for transporting plates according to claim 3, characterized in that: The winding device (3) further includes a ratchet tooth (31) installed at the top of the housing (36) and connected to the ratchet wheel (33), and a first spring (32) arranged on the side surface of the ratchet tooth (31) and connected to the housing (36).

6. A tower crane spreader for transporting plates according to claim 1, characterized in that: A baffle plate moving along the inner side of the supporting tube (4) is arranged inside the other end of the supporting tube (1). The baffle plate of the supporting tube (1) is connected to the second spring (6) inside the supporting tube (4).

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