Pile foundation reinforcement cage hoisting device

Abstract

The utility model discloses a pile foundation reinforcement cage lifting device which comprises an annular lifting frame, a plurality of lifting lugs are evenly installed on the top wall of the annular lifting frame, a cross-shaped hanging frame is installed in a central cavity of the annular lifting frame, four cylindrical supporting legs of the cross-shaped hanging frame are all sleeved with sliding barrels in a sliding mode, and the sliding barrels are connected with the lifting lugs in a sliding mode. A locking device is arranged on the sliding cylinder, and a hanging ring is mounted on the bottom wall of the sliding cylinder; the cross-shaped hanging frame has the beneficial effects that the distance between two opposite hanging rings can be the same as the diameter of the section of a hoisted reinforcement cage by adjusting the sliding barrels sleeved on the four cylindrical supporting legs of the cross-shaped hanging frame, so that a hoisting rope can be leveled in time, the hoisted reinforcement cage cannot incline, the reinforcement cage is not easy to deform, and the service life of the hoisting rope is prolonged. The welding angles of the upper and lower reinforcement cages correspond, so that the welding quality is ensured; the weight of the reinforcement cage can be uniformly distributed on the cross-shaped hanging frame through the four hanging points, so that the hanger is prevented from being deformed.

Description

Technical field:

[0001] The utility model belongs to the field of road and bridge construction production, and in particular relates to a pile foundation steel bar cage hoisting device. Background technology:

[0002] As my country's bridge construction enters a stage of high-quality development, the steel cages used in the pile foundation construction process are becoming heavier, the installation complexity and safety risks are becoming greater, and the construction quality requirements are also increasing.

[0003] In the existing construction technology, the shoulder pole beam sling is generally used for the lifting of the steel cage. It is widely used because of its simple structure and low purchase cost. The main structure of the shoulder pole beam sling is a long strip of I-beam, with lifting ears installed on the bottom walls at both ends. During lifting, one end of the lifting rope is hung on the lifting ear, and the other end of the lifting rope is hung on the reinforcement ring of the steel cage and lifted and placed in the pile foundation. During the use of the shoulder pole beam sling, the spacing of the lifting ears installed on the bottom wall of the long strip of I-beam is fixed, and it is impossible to adjust the lifting ears to align with the cross-sectional diameter of the steel cage with different cross-sectional diameters. When lifting a large diameter When hoisting the steel cage, the two lifting ropes are in a state of tilting outwards, resulting in the fact that the lifted steel cage cannot be leveled in time. The steel cage often tilts during the lifting process, which not only easily causes the steel cage to deform, but also when the tilted and deformed steel cage is connected in two sections, the main bars of the steel cage are not in the same steel bar plane, and the welding angles of the upper and lower sections of the steel cage do not correspond, affecting the welding quality; the lifting points of the shoulder pole beam hoist are generally two points, and the lifting force is relatively large. After frequent lifting of large-diameter and heavy-weight steel cages, the I-beams are prone to bending and deformation, so there is a certain safety risk. Utility model content:

[0004] The purpose of the utility model is to provide a pile foundation steel cage hoisting device, and overcome the deficiencies of the above-mentioned prior art, and effectively solve the existing problems generated in the steel cage hoisting process.

[0005] The content of the utility model: A pile foundation steel cage hoisting device comprises an annular hanger, a plurality of lifting ears are evenly installed on the top wall of the annular hanger, a cross-shaped hanger is installed in the central cavity of the annular hanger, a slide tube is slidably mounted on the four cylindrical legs of the cross-shaped hanger, a locking device is arranged on the slide tube, and a hanging ring is installed on the bottom wall of the slide tube.

[0006] Furthermore, the locking device includes a pin, a socket is opened on the top wall of the slide, the pin is inserted into the socket, a blind hole matching the pin is opened on the top wall of the cylindrical leg of the cross-shaped hanger, and a sliding limit device is arranged on the slide.

[0007] Furthermore, the sliding limiting device comprises limiting bars, which are installed on both side walls of the cylindrical legs of the cross-shaped hanger, and a sliding groove is opened on the inner wall of the slide cylinder, and the limiting bar slides in the sliding groove.

[0008] Furthermore, cross-shaped reinforcing ribs are installed on the top wall and the bottom wall of the cross-shaped hanger, and the cross-shaped reinforcing ribs are located at the cross intersection of the cross-shaped hanger.

[0009] Furthermore, triangular reinforcing ribs are installed on the outer walls of the four cylindrical legs of the cross-shaped hanger, and the outer ends of the triangular reinforcing ribs are fixedly connected to the inner circular side walls of the annular hanger.

[0010] The beneficial effects of the utility model are as follows: by adjusting the slide tubes mounted on the four cylindrical legs of the cross-shaped hanger, the distance between the two relative hanging rings can be the same as the cross-sectional diameter of the hoisted steel cage, so that the lifting rope can be leveled in time, the hoisted steel cage will not tilt, the steel cage is not easy to deform, and the welding angles of the upper and lower sections of the steel cage correspond to ensure the welding quality; the four lifting points can distribute the weight of the steel cage evenly on the cross-shaped hanger, thereby avoiding deformation of the sling. Description of the drawings:

[0011] Figure 1 It is a top view of the utility model;

[0012] Figure 2 It is a left view of the utility model;

[0013] Figure 3 for Figure 1 Section view of the AA section;

[0014] Figure 4 for Figure 3 A partial enlarged view of part B;

[0015] In the figure, 1 is an annular hanger, 2 is a hanging ear, 3 is a cross-shaped hanger, 4 is a slide tube, 5 is a hanging ring, 6 is a pin, 7 is a socket, 8 is a blind hole, 9 is a limit strip, 10 is a slide groove, 11 is a cross-shaped reinforcement rib, and 12 is a triangular reinforcement rib. Specific implementation method:

[0016] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention is now described with reference to the accompanying drawings:

[0017] like Figures 1 to 4As shown, a pile foundation steel cage hoisting device comprises an annular hanger 1, a plurality of lifting ears 2 are evenly installed on the top wall of the annular hanger 1, a cross-shaped hanger 3 is installed in the central cavity of the annular hanger 1, a slide tube 4 is slidably mounted on the four cylindrical legs of the cross-shaped hanger 3, a locking device is arranged on the slide tube 4, a hanging ring 5 is installed on the bottom wall of the slide tube 4, the locking device comprises a pin 6, a plug hole 7 is opened on the top wall of the slide tube 4, the pin 6 is inserted in the plug hole 7, a blind hole 8 matching the pin 6 is opened on the top wall of the cylindrical leg of the cross-shaped hanger 3, and a locking device is arranged on the slide tube 4. A sliding limit device is provided on the cylinder 4, and the sliding limit device includes a limit bar 9. The limit bar 9 is installed on both side walls of the cylindrical legs of the cross-shaped hanger 3. A slide groove 10 is opened on the inner wall of the slide cylinder 4, and the limit bar 9 slides in the slide groove 10. Cross-shaped reinforcement ribs 11 are installed on the top wall and the bottom wall of the cross-shaped hanger 3. The cross-shaped reinforcement ribs 11 are located at the cross intersection of the cross-shaped hanger 3. Triangular reinforcement ribs 12 are installed on the outer walls of the four cylindrical legs of the cross-shaped hanger 3, and the outer ends of the triangular reinforcement ribs 12 are fixedly connected to the inner circular side wall of the annular hanger 1.

[0018] Specifically, by adjusting the slide tube 4 mounted on the four cylindrical legs of the cross-shaped hanger 3, the hanging ring 5 can be made to have the same diameter as the cross-section of the steel cage being hoisted, so that the hoisting rope can be leveled in time.

[0019] In actual use, first connect the hanging rope on the crane hook to the lifting ear 2, and then slide and adjust the relative position of the slide cylinder 4 on the four cylindrical legs of the cross-shaped hanger 3 according to the cross-sectional diameter of the steel cage to be hoisted, so that the two opposite slide cylinders 4 have the same cross-sectional diameter as the steel cage. At this time, insert the pin 6 into the blind hole 8 to fix the position of the slide cylinder 4. It should be noted that the spacing of each group of blind holes 8 can be determined according to the cross-sectional diameter of the existing commonly used steel cage. In this way, when the positions of the two opposite slide cylinders 4 are fixed, the spacing between them is the same as the cross-sectional diameter of the steel cage to be hoisted, and the limit bar 9 slides in the slide groove 10 to prevent the slide tube 4 from rotating randomly during the sliding process. After the adjustment is completed, one end of the lifting rope is hung on the hanging ring 5, and the other end of the lifting rope is hung on the reinforcing ring of the steel cage. At this time, the crane slowly lifts the lifting rope for a distance so that the four lifting ropes can be vertical. At this time, the length of the lifting rope is adjusted again to make the lengths of the four lifting ropes equal. In this way, when the steel cage is lifted, it is in a vertical state without tilting. The steel cage is not easy to deform. The four lifting ropes can also evenly distribute the weight of the steel cage to the four cylindrical legs of the cross-shaped hanger 3 to prevent the sling from deforming.

[0020] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pile foundation steel cage hoisting device, characterized in that: The invention comprises an annular hanger (1), a plurality of hanging ears (2) are evenly installed on the top wall of the annular hanger (1), a cross-shaped hanger (3) is installed in the central cavity of the annular hanger (1), a slide cylinder (4) is slidably mounted on four cylindrical legs of the cross-shaped hanger (3), a locking device is arranged on the slide cylinder (4), and a hanging ring (5) is installed on the bottom wall of the slide cylinder (4).

2. A pile foundation reinforcement cage hoisting device according to claim 1, characterized in that: The locking device comprises a pin (6), a socket (7) is provided on the top wall of the slide cylinder (4), the pin (6) is inserted into the socket (7), a blind hole (8) matching the pin (6) is provided on the top wall of the cylindrical leg of the cross-shaped hanger (3), and a sliding limit device is provided on the slide cylinder (4).

3. A pile foundation reinforcement cage hoisting device according to claim 2, characterized in that: The sliding limit device comprises a limit strip (9) which is installed on both side walls of the cylindrical legs of the cross-shaped hanger (3); a slide groove (10) is provided on the inner wall of the slide cylinder (4), and the limit strip (9) slides in the slide groove (10).

4. A pile foundation reinforcement cage hoisting device according to claim 1, characterized in that: Cross-shaped reinforcing ribs (11) are installed on the top wall and the bottom wall of the cross-shaped hanger (3), and the cross-shaped reinforcing ribs (11) are located at the cross intersection of the cross-shaped hanger (3).

5. A pile foundation reinforcement cage hoisting device according to claim 1, characterized in that: Triangular reinforcing ribs (12) are installed on the outer walls of the four cylindrical legs of the cross-shaped hanger (3), and the outer ends of the triangular reinforcing ribs (12) are fixedly connected to the inner circular side walls of the annular hanger (1).

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