Adjustable prestressed composite slab hoisting frame

Abstract

The utility model discloses a hoisting frame body of adjustable prestressed composite board relates to composite board hoisting technical field, it includes the center frame of I -shaped, both sides of center frame are equipped with the folding frame, and the opposite side of two folding frames is connected through the axle with the middle position of center frame, and the front and back side on two folding frames all are installed with locking bolt, and four locking bolts are connected with the thread groove of four corners of center frame and folding frame. This kind of hoisting frame body of adjustable prestressed composite board, through sliding extension frame and adjusting sleeve, can be flexible adjustment the spacing between four hoisting ropes, thereby adapts the prestressed composite board of different size and weight, has improved the versatility and hoisting stability of frame body significantly. Folding frame is connected through axle and center frame, and can be fixed or released through locking bolt, realizes the quick folding and unfolding of frame body, and the volume is greatly reduced after folding, facilitates transportation and storage, reduces the warehousing and the cost of logistics.

Description

Technical Field

[0001] This utility model relates to the field of composite slab hoisting technology, specifically to an adjustable hoisting frame for prestressed composite slabs. Background Technology

[0002] In the construction industry, prestressed composite slabs are widely used in floor slabs, wall panels, and other structures due to their excellent mechanical properties and construction efficiency. However, traditional hoisting frames have many shortcomings in transportation and installation. For example, existing hoisting frames are mostly fixed structures, which cannot be flexibly adjusted according to the size and weight of the composite slab, resulting in poor stability and limited applicability during hoisting. Furthermore, fixed structures occupy a large amount of space during transportation and storage, causing significant inconvenience. Therefore, this application proposes an adjustable hoisting frame for prestressed composite slabs to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable prestressed composite slab hoisting frame, which solves the technical problems mentioned in the background.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable prestressed composite slab hoisting frame, including an I-shaped central frame, folding frames on both sides of the central frame, and the opposite sides of the two folding frames are connected to the middle position of the central frame through shafts, and locking bolts are installed on the front and rear sides of the two folding frames, and the four locking bolts are connected to the folding frames through threaded grooves at the four corners of the central frame, and four suspension hooks are installed on the two folding frames, and the four suspension hooks are connected to hoisting chains;

[0007] Both of the folding frames have U-shaped extension frames that slide on their outer sides. Both extension frames have two adjusting sleeves that slide on their outer ends. The bottom of each adjusting sleeve is connected to a hoisting rope, and the bottom of the hoisting rope is provided with a hoisting hook.

[0008] Preferably, the locking bolt is located at least 20cm away from the shaft at the connection between the center frame and the folding frame.

[0009] Preferably, the four suspension hooks are distributed at the two outer corners of the two folding frames, and the four lifting chains are distributed in a radiating pattern.

[0010] Preferably, the folding frame and the extension frame, as well as the adjusting sleeve and the extension frame, are fixed together by bolts.

[0011] Preferably, the extension frame slides within the slot of the folding frame.

[0012] Preferably, the position adjustment between the four lifting ropes is achieved by sliding the extension frame within the slot of the folding frame and by sliding the adjusting sleeve on the extension frame.

[0013] (III) Beneficial Effects

[0014] The beneficial effects of this utility model are as follows:

[0015] This adjustable prestressed composite slab hoisting frame, through a sliding extension frame and adjusting sleeve, allows for flexible adjustment of the spacing between the four hoisting ropes, thus adapting to prestressed composite slabs of different sizes and weights, significantly improving the frame's versatility and hoisting stability. The folding frame is connected to the central frame via a shaft and can be fixed or released using locking bolts, enabling rapid folding and unfolding of the frame. The folded size is significantly reduced, facilitating transportation and storage, and lowering warehousing and logistics costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention in use.

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention in its folded state.

[0019] In the diagram: 1. Central frame, 2. Folding frame, 3. Shaft, 4. Locking bolt, 5. Suspension hook, 6. Lifting chain, 7. Extension frame, 8. Adjustment sleeve, 9. Lifting rope, 10. Lifting hook. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1-3As shown, this utility model provides a technical solution: an adjustable prestressed composite slab hoisting frame, including an I-shaped central frame 1, with folding frames 2 on both sides of the central frame 1. The opposite sides of the two folding frames 2 are connected to the middle position of the central frame 1 via shafts 3. Locking bolts 4 are installed on the front and rear sides of the two folding frames 2, and the four locking bolts 4 are connected to the folding frames 2 by threaded grooves at the four corners of the central frame 1. The locking bolts 4 are at least 20cm away from the shafts 3 at the connection between the central frame 1 and the folding frames 2. To ensure the stability of the connection between the central frame 1 and the folding frame 2, four suspension hooks 5 are installed on the two folding frames 2, and the four suspension hooks 5 are connected to the lifting chains 6. The four suspension hooks 5 are distributed at the two outer corners of the two folding frames 2, and the four lifting chains 6 are distributed in a radiating pattern. The folding frames 2 on both sides are rotated outward around the shaft 3 until they are fully unfolded, forming a horizontal support structure with the central frame 1. The locking bolts 4 are tightened to connect with the threaded groove of the central frame 1, so that the folding frame 2 and the central frame 1 are firmly connected, ensuring the rigidity of the frame.

[0022] U-shaped extension frames 7 are slidably installed on the outer sides of both folding frames 2. The extension frames 7 slide within the slots of the folding frames 2. Two adjusting sleeves 8 slide on the outer ends of both extension frames 7. The bottom ends of the adjusting sleeves 8 are connected to lifting ropes 9, which are steel wire ropes. Based on the dimensions of the prestressed composite slab, the extension frames 7 are slid along the slots of the folding frames 2 to adjust their extension length. The folding frames 2 and extension frames 7 are locked together using bolts. The adjusting sleeves 8 are moved on the extension frames 7 to align the positions of the four lifting hooks 10 with the lifting points of the composite slab. The extension frames 7 and adjusting sleeves 8 are fixed using bolts to ensure no displacement occurs during lifting. The lifting hooks 10 at the bottom of the lifting ropes 9 are then attached to the pre-set lifting rings or fixing points of the prestressed composite slab. Figure 2 As shown, a crane or hoisting equipment is used to connect the top of the hoisting chain 6 on the suspension hook 5, and the frame is slowly lifted to hoist the prestressed composite slab. The bottom end of the hoisting rope 9 is equipped with a hoisting hook 10. The folding frame 2 and the extension frame 7, as well as the adjusting sleeve 8 and the extension frame 7, are all fixed by a bolt structure. The bolt structure includes bolts and multiple fixing holes, such as... Figure 1 As shown, bolts and multiple fixing holes between the folding frame 2 and the extension frame 7 are respectively located on the folding frame 2 and the extension frame 7, and the multiple fixing holes are equidistantly distributed on the front and rear transverse ends of the extension frame 7. Bolts and multiple fixing holes between the adjusting sleeve 8 and the extension frame 7 are respectively located on the adjusting sleeve 8 and the extension frame 7, and the multiple fixing holes are equidistantly distributed on the outer longitudinal end of the extension frame 7. The position of the four lifting ropes 9 is adjusted by sliding the extension frame 7 in the slot of the folding frame 2 and sliding the adjusting sleeve 8 on the extension frame 7. The lifting ropes 9 are wound around the extension frame 7, and the extension frame 7 is pushed into the slot of the folding frame 2 to reduce the space occupied. Then, the locking bolt 4 is loosened, and the folding frame 2 is rotated and folded to be perpendicular to the center frame 1. At this time, the center frame 1 and the two folding frames 2 will be folded together, as shown. Figure 3 As shown, this facilitates storage and transfer.

[0023] The operational steps for this application are as follows:

[0024] When unfolding the frame:

[0025] Rotate the two folding frames 2 outward around the shaft 3 until they are fully unfolded, forming a horizontal support structure with the central frame 1. Tighten the locking bolts 4 to connect with the threaded groove of the central frame 1, so that the folding frame 2 and the central frame 1 are firmly connected, ensuring the rigidity of the frame. According to the size of the prestressed composite plate, slide the extension frame 7 along the slot of the folding frame 2 and adjust its extension length. Lock the folding frame 2 and the extension frame 7 through the bolt structure. Move the adjusting sleeve 8 on the extension frame 7 so that the position of the four lifting hooks 10 is aligned with the lifting point of the composite plate. Fix the extension frame 7 and the adjusting sleeve 8 through the bolt structure to ensure that no displacement occurs during the lifting process.

[0026] Attach the lifting hook 10 at the bottom of the lifting rope 9 to the pre-set lifting ring or fixing point of the prestressed composite slab, such as... Figure 2 As shown, a crane or hoisting equipment is used to connect the top of the hoisting chain 6 on the hook 5, and the frame is slowly lifted to achieve the hoisting of the prestressed composite slab.

[0027] When folding the hoisting frame:

[0028] Wrap the lifting rope 9 around the extension frame 7, push the extension frame 7 into the slot of the folding frame 2 to reduce space occupation, then loosen the locking bolt 4, rotate and fold the folding frame 2 to be perpendicular to the center frame 1. At this time, the center frame 1 and the two folding frames 2 will fold together, as shown. Figure 3 As shown, this facilitates storage and transfer.

[0029] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting frame for an adjustable prestressed composite slab, characterized in that: The frame includes an I-shaped central frame (1), with folding frames (2) on both sides of the central frame (1). The opposite sides of the two folding frames (2) are connected to the middle position of the central frame (1) through shafts (3). Locking bolts (4) are installed on the front and rear sides of the two folding frames (2), and the four locking bolts (4) are connected to the threaded grooves opened at the four corners of the central frame (1). Four suspension hooks (5) are installed on the two folding frames (2), and the four suspension hooks (5) are connected to lifting chains (6). U-shaped extension frames (7) are slidably provided on the outer side of both folding frames (2). Two adjusting sleeves (8) slide on the outer side of both extension frames (7). The bottom end of the adjusting sleeve (8) is connected to a hoisting rope (9), and the bottom end of the hoisting rope (9) is provided with a hoisting hook (10).

2. The hoisting frame for an adjustable prestressed composite slab according to claim 1, characterized in that: The locking bolt (4) is more than 20cm away from the shaft (3) at the connection between the center frame (1) and the folding frame (2).

3. The hoisting frame for an adjustable prestressed composite slab according to claim 2, characterized in that: The four suspension hooks (5) are distributed at the two outer corners of the two folding frames (2), and the four lifting chains (6) are distributed in a radiating pattern.

4. The hoisting frame for an adjustable prestressed composite slab according to claim 1, characterized in that: The folding frame (2) and the extension frame (7), as well as the adjusting sleeve (8) and the extension frame (7), are all fixed by bolts.

5. The hoisting frame for an adjustable prestressed composite slab according to claim 1, characterized in that: The extension frame (7) slides within the slot of the folding frame (2).

6. The hoisting frame for an adjustable prestressed composite slab according to claim 1, characterized in that: The position adjustment between the four hoisting ropes (9) is achieved by sliding the extension frame (7) in the slot of the folding frame (2) and sliding the adjusting sleeve (8) on the extension frame (7).

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