Adjustable hoisting tool for steel bar truss floor support plate

Abstract

The utility model relates to the technical field of hoisting tools, and discloses an adjustable steel bar truss floor support plate hoisting tool which comprises a hoisting frame, telescopic frames are inserted into the end parts of the two ends of the hoisting frame, the telescopic frames and the inner wall of the hoisting frame are mounted in a sliding manner, and fixing plates are fixedly mounted at the adjacent ends of the telescopic frames. When the distance of the expansion bracket is reduced, the size of the steel wire rope can be adjusted through the ascending motion of the auxiliary rope wheel, and the distance of the steel wire rope can be adjusted through the descending motion of the auxiliary rope wheel, on the contrary, the size of the steel wire rope can be adjusted through the descending motion of the auxiliary rope wheel. The hoisting height of the steel wire rope is not changed, so that the subsequent assembly work is prevented from being influenced by the change of the height of the hoisted steel bar truss floor support plate, and the use by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting tools, in particular to an adjustable steel bar truss floor deck hoisting tool. Background Art

[0002] A truss made of steel bars as the upper chord, lower chord and web members connected by resistance spot welding is called a steel truss. The combined load-bearing plate formed by the steel truss and the bottom plate connected into an integral whole by resistance spot welding is called a steel truss floor deck.

[0003] The existing adjustable steel truss floor deck hoisting tool (Announcement No.: CN220787794U) has at least the following disadvantages:

[0004] When the above patent is in use, the distance between the two movable frames can be adjusted by setting a bidirectional screw rod, so that the lifting and adjustment can be performed for steel truss floor decks of different sizes. Since the length of the hanger changes when the size is adjusted, the wire rope of the hanger in the above patent cannot be adjusted synchronously when the length is adjusted, resulting in a change in the lifting height of the steel truss floor deck hoisted on the wire rope, affecting the subsequent assembly and making it inconvenient for the staff to use. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an adjustable steel bar truss floor deck hoisting tool.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tool for lifting adjustable steel bar truss floor deck, comprising a hanger, telescopic frames are inserted at the ends of both ends of the hanger, the telescopic frames are slidably installed on the inner wall of the hanger, and a fixing plate is fixedly installed on the adjacent ends of the telescopic frames, a worm gear is rotatably installed between the inner walls of the opposite ends of the hanger, both ends of the worm gear pass through the outer surface of the hanger and are fixedly installed with a screw rod, the screw rod passes through the outer surface of the fixing plate and is threadedly connected to it, two support rods are symmetrically rotatably installed on the upper surface of the hanger, auxiliary rope pulleys are rotatably installed on the top of the two support rods, a driving rod is rotatably installed on the upper surface of the telescopic frame, and the top end of the driving rod is rotatably installed on the outer surface of the support rod.

[0008] As a further solution of the utility model, a worm is rotatably installed between the inner walls on opposite sides of the hanger, the worm is meshed with a worm wheel, and one end of the worm passes through the outer surface of the hanger and is fixedly installed with a knob.

[0009] As a further solution of the utility model, the ends of the telescopic frames that are away from each other are rotatably mounted with rope wheels, the outer surfaces of the auxiliary rope wheels and the rope wheels are wound with steel wire ropes, and the bottom ends of the steel wire ropes are fixedly mounted with a hook.

[0010] As a further solution of the utility model, a winch is fixedly mounted on the upper surface of the hanger, and the other end of the wire rope is fixedly mounted to the output end of the winch.

[0011] As a further solution of the utility model, the threads of the two screw rods are arranged in opposite directions, and a limit stopper is fixedly installed on one end of the screw rod away from the worm wheel.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] When the distance of the telescopic frame becomes shorter, the size of the wire rope will move up through the auxiliary rope pulley to support the distance of the wire rope. Conversely, the size of the wire rope will move down through the auxiliary rope pulley to support the distance of the wire rope. When the size of the telescopic frame is adjusted by this device, the hoisting height of the wire rope will not change, thereby avoiding changes in the height of the hoisted steel truss floor deck, affecting the subsequent assembly work, and facilitating use by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an adjustable steel bar truss floor deck lifting tool proposed by the utility model;

[0015] Figure 2 This is a rear structural schematic diagram of an adjustable steel truss floor deck lifting tool proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the top view of the structure of an adjustable steel truss floor deck lifting tool proposed by the utility model;

[0017] Figure 4 The utility model provides an internal structure schematic diagram of an adjustable steel bar truss floor deck lifting tool.

[0018] In the figure: 1. hanger; 2. telescopic frame; 3. winch; 4. rope pulley; 5. wire rope; 6. hook; 7. support rod; 8. auxiliary rope pulley; 9. driving rod; 10. screw rod; 11. limit block; 12. knob; 13. worm; 14. worm wheel; 15. fixing plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Reference Figure 1-Figure 4 A tool for lifting adjustable steel truss floor decks, comprising a hanger 1, telescopic frames 2 are inserted at the ends of both ends of the hanger 1, the telescopic frames 2 are slidably installed with the inner wall of the hanger 1, and a fixing plate 15 is fixedly installed at one adjacent end of the telescopic frame 2, and a worm gear 14 is rotatably installed between the inner walls of the opposite ends of the hanger 1, and screw rods 10 are fixedly installed at both ends of the worm gear 14 through the outer surface of the hanger 1, and the screw rod 10 passes through the outer surface of the fixing plate 15 and is threadedly connected with it, two support rods 7 are symmetrically rotatably installed on the upper surface of the hanger 1, and auxiliary rope pulleys 8 are rotatably installed on the top of the two support rods 7, and a driving rod 9 is rotatably installed on the upper surface of the telescopic frame 2, and the top of the driving rod 9 is rotatably installed with the outer surface of the support rod 7.

[0023] The movement of the telescopic frame 2 towards or away from each other drives the driving rod 9 to move, so that the driving rod 9 drives the supporting rod 7 to support or retract, and the supporting rod 7 drives the auxiliary rope pulley 8 to rise or fall. When the size of the telescopic frame 2 is adjusted by the present device, when the distance of the telescopic frame 2 becomes shorter, the size of the wire rope 5 will rise through the auxiliary rope pulley 8 to support the distance of the wire rope 5. Conversely, the size of the wire rope 5 will fall through the auxiliary rope pulley 8 to support the distance of the wire rope 5. When the size of the telescopic frame 2 is adjusted by the present device, the hoisting height of the wire rope 5 will not change, thereby avoiding changes in the height of the hoisted steel truss floor deck, affecting the subsequent assembly work, and facilitating use by the staff.

[0024] In this embodiment, a worm 13 is rotatably installed between the inner walls of the hanger 1 on opposite sides, the worm 13 is meshed with a worm wheel 14 , and one end of the worm 13 passes through the outer surface of the hanger 1 and a knob 12 is fixedly installed thereon.

[0025] When in use, the user drives the worm 13 to rotate through the knob 12 according to the size of the steel truss floor deck that needs to be hoisted, so that the worm 13 drives the worm wheel 14 to rotate, and the worm wheel 14 drives the two screw rods 10 to rotate, so that the screw rods 10 drive the two telescopic frames 2 to move closer to or away from each other. The distance between the two hooks 6 can be adjusted by the movement of the telescopic frames 2, so that the device can be adjusted according to the size of the steel truss floor deck that needs to be hoisted, thereby increasing the applicability of the device.

[0026] In this embodiment, a rope pulley 4 is rotatably installed at one end of the telescopic frame 2 that is away from each other, a steel wire rope 5 is wound around the outer surface of the auxiliary rope pulley 8 and the rope pulley 4, a hook 6 is fixedly installed at the bottom end of the steel wire rope 5, a winch 3 is fixedly installed on the upper surface of the hanger 1, and the other end of the steel wire rope 5 is fixedly installed to the output end of the winch 3.

[0027] The output end of the winch 3 drives the wire rope 5 to retract and release, so that the hook 6 lifts or lowers the steel truss floor deck.

[0028] In this embodiment, the threads of the two screw rods 10 are arranged in opposite directions, and a limit stop 11 is fixedly installed on the end of the screw rod 10 away from the worm gear 14. The threads of the screw rod 10 are arranged in opposite directions to facilitate the movement of the telescopic frame 2 towards or away from each other. The movement distance of the telescopic frame 2 is limited by the limit stop 11 to ensure that the telescopic frame 2 will not slip off the hanger 1.

[0029] It should be noted that when the utility model is in use, the user drives the worm 13 to rotate through the knob 12 according to the size of the steel truss floor deck that needs to be hoisted, so that the worm 13 drives the worm wheel 14 to rotate, and the worm wheel 14 drives the two screws 10 to rotate, so that the screws 10 drive the two telescopic frames 2 to move closer to or away from each other, and the distance between the two hooks 6 can be adjusted through the movement of the telescopic frames 2, so that the device can be adjusted according to the size of the steel truss floor deck that needs to be hoisted, thereby increasing the applicability of the device; at the same time, the drive rod 9 is driven to move by the movement of the telescopic frames 2 to move closer to or away from each other, so that the drive rod 9 drives the support rod 7 to support or retract, and the support rod 7 drives the auxiliary rope pulley 8 to rise or fall. When the size of the telescopic frame 2 is adjusted by the present device, when the distance of the telescopic frame 2 becomes shorter, the size of the wire rope 5 will rise through the auxiliary rope pulley 8 to support the distance of the wire rope 5. On the contrary, the size of the wire rope 5 will fall through the auxiliary rope pulley 8 to support the distance of the wire rope 5. When the size of the telescopic frame 2 is adjusted by the present device, the hoisting height of the wire rope 5 will not change, thereby avoiding changes in the height of the hoisted steel truss floor deck, affecting the subsequent assembly work, and facilitating use by the staff.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable steel truss floor deck hoisting tool, comprising a hanger (1), characterized in that: The ends of both ends of the hanger (1) are both inserted with a telescopic frame (2), the telescopic frame (2) is slidably installed with the inner wall of the hanger (1), and the adjacent end of the telescopic frame (2) is fixedly installed with a fixing plate (15), and a worm gear (14) is rotatably installed between the inner walls of the opposite ends of the hanger (1), and both ends of the worm gear (14) pass through the outer surface of the hanger (1) and are fixedly installed with a screw rod (10), and the screw rod (10) passes through the outer surface of the fixing plate (15) and is threadedly connected thereto, and two support rods (7) are symmetrically rotatably installed on the upper surface of the hanger (1), and the top ends of the two support rods (7) are rotatably installed with auxiliary rope wheels (8), and a driving rod (9) is rotatably installed on the upper surface of the telescopic frame (2), and the top end of the driving rod (9) is rotatably installed with the outer surface of the support rod (7).

2. The adjustable steel truss floor deck hoisting tool according to claim 1, characterized in that: A worm (13) is rotatably mounted between inner walls on opposite sides of the hanger (1), the worm (13) meshing with a worm wheel (14), and one end of the worm (13) penetrates through the outer surface of the hanger (1) and is fixedly mounted with a knob (12).

3. The adjustable steel truss floor deck hoisting tool according to claim 2, characterized in that: The ends of the telescopic frames (2) that are away from each other are both rotatably mounted with rope wheels (4), the outer surfaces of the auxiliary rope wheels (8) and the rope wheels (4) are wound with steel wire ropes (5), and the bottom ends of the steel wire ropes (5) are fixedly mounted with a hook (6).

4. The adjustable steel truss floor deck hoisting tool according to claim 3 is characterized in that: A winch (3) is fixedly mounted on the upper surface of the hanger (1), and the other end of the steel wire rope (5) is fixedly mounted to the output end of the winch (3).

5. The adjustable steel bar truss floor deck hoisting tool according to claim 4, characterized in that: The threads of the two screw rods (10) are arranged in opposite directions, and a limit stopper (11) is fixedly mounted on one end of the screw rod (10) away from the worm gear (14).

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