A steel cage lifting device

Abstract

This utility model discloses a steel cage lifting device, including a cage positioning plate, a vertical plate frame, a Y-shaped expansion frame, and a boom rod. Two sets of boom rods are provided. The two expansion ends of the Y-shaped expansion frame are rotatably mounted on the two sets of boom rods. A drive cylinder is mounted on the top of the cage positioning plate via a cylinder frame. The piston rod end of the drive cylinder is connected to the Y-shaped expansion frame. One end of the boom rod is rotatably mounted to the bottom side of the vertical plate frame. A hook plate is mounted on the top of the cylinder frame, and a hook shaft is mounted on the hook plate. The advantages are: it can be lifted directly from the middle of the steel cage, reducing swaying and shaking; the single-drive production cost is low; and its expansion angle is adjustable, allowing it to be used on steel cages of different diameters, thus having a wide range of applications. When lowered, it probes in; during lifting, no positioning or manual intervention is required, allowing it to automatically probe into the nearest cage opening for lifting.

Description

Technical Field

[0001] This utility model relates to the field of steel cage hoisting accessories, and in particular to a steel cage hoisting tool. Background Technology

[0002] In most construction projects, reinforced concrete piles are the first choice for construction work. For pipe piles, they are usually prefabricated and transported to the construction site. When the pipe piles are poured, steel cages need to be placed in the mold to increase their strength and stress. The movement of the steel cages is mostly done by hoisting equipment. At present, the lifting devices used on steel cages are mostly single-sided grippers or double-sided clamps. Single-sided grippers use hook-like objects to swing and hook into the side of the steel cage. However, when lifting, the steel cage will rotate to some extent due to gravity, resulting in a large swing amplitude during hoisting. Although the double-sided clamping method can effectively avoid the above problems, it requires a drive structure on both sides, which increases the production cost. In addition, the hooks of the double-sided clamps need to be aligned with the cage openings. If the alignment is not accurate, it is easy to press and jam the reinforcing bars. Utility Model Content

[0003] The purpose of this utility model is to provide a steel cage lifting device in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A steel cage lifting device includes a cage positioning plate, a vertical plate frame, a Y-shaped expansion frame, and a boom rod. The boom rod is provided in two sets. The two expansion ends of the Y-shaped expansion frame are respectively rotatably installed on the rod bodies of the two sets of boom rods. A drive cylinder is mounted on the top of the cage positioning plate through a cylinder frame. The piston rod end of the drive cylinder is connected to the Y-shaped expansion frame. One end of the boom rod is rotatably installed on the bottom side of the vertical plate frame. A hook plate is installed on the top of the cylinder frame, and a hook shaft is installed on the hook plate.

[0006] Furthermore, the Y-shaped support frame consists of a limiting push block, a push rod fixed to the top of the limiting push block, and support arms rotatably mounted on both sides of the limiting push block.

[0007] Furthermore, the limiting push block has rotating grooves on both sides, one end of the support arm is rotatably installed into the rotating groove through a rotating shaft in the groove, and the other end of the support arm is rotatably installed onto the rod body of the boom rod.

[0008] Furthermore, the top end of the push rod is connected to the piston rod of the drive cylinder via a rod joint.

[0009] Furthermore, the vertical plate frame is provided with a vertically extending limiting strip hole, and an inner limiting pin is installed on the back side of the limiting push block. The inner limiting pin is machined into the extending limiting strip hole.

[0010] Furthermore, a lowering cone head is fixedly installed at the bottom of the vertical plate frame.

[0011] Furthermore, the cylinder frame and the cage positioning plate are fixed together with screws.

[0012] Furthermore, the end of the boom rod is rotatably mounted to the vertical plate frame via a boom hinge.

[0013] Furthermore, the hook plate is equipped with reinforcing ribs.

[0014] The beneficial effects are as follows: the steel cage lifting device described in this utility model can be lifted directly from the middle of the steel cage, reducing swaying and shaking, and the single-drive production cost is low. At the same time, its opening angle is adjustable, so it can be used on steel cages of different diameters, with a wide range of applications. When it is hanging down, it can be inserted, and when it is lifted, no positioning or manual intervention is required. It can be inserted into the nearest cage hole to lift it. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a steel cage lifting device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal transmission structure of the transmission column cavity of the steel cage lifting device described in this utility model.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Cage positioning plate; 2. Vertical plate frame; 3. Y-shaped support frame; 31. Push rod; 32. Limiting push block; 33. Support arm; 4. Cylinder frame; 5. Drive cylinder; 6. Rod joint; 7. Boom rod; 8. Lowering cone head; 9. Boom hinge; 10. Hook plate; 11. Hook shaft; 12. Reinforcing rib; 13. Supporting limit strip hole; 14. In-hole limit pin; 15. Solenoid valve; 16. Ball valve. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] The following is combined Figures 1 to 2 The steel cage lifting device provided in this embodiment will be further described as follows:

[0021] Please refer to Figure 1The present invention provides a steel cage lifting device, including a cage positioning plate 1, a vertical plate frame 2, a Y-shaped support frame 3 and a boom rod 7. The boom rod 7 is provided in two sets. The two opening ends of the Y-shaped support frame 3 are respectively rotatably installed on the rods of the two sets of boom rods 7, so that the two sets of boom rods 7 are opened to both sides, thereby clamping and lifting the steel cage during lifting.

[0022] A drive cylinder 5 is mounted on the top of the cage positioning plate 1 via a cylinder frame 4. The cylinder frame 4 is a rectangular frame composed of several steel pipes. The drive cylinder 5 is fixed inside the rectangular frame. The piston rod end of the drive cylinder 5 is connected to the Y-shaped expansion frame 3 to provide the driving force for opening and closing.

[0023] One end of the boom rod 7 is rotatably installed to the bottom side of the vertical plate frame 2, and the two sets of boom rods 7 are symmetrically arranged. The other end of the boom rod 7 serves as the locking end and is locked into the cage hole of the steel cage, thereby realizing the hoisting of the steel cage.

[0024] A hook plate 10 is installed on the top of the cylinder frame 4, and a hook shaft 11 is installed on the hook plate 10. The hook shaft is installed on the hook shaft by a hoisting and lifting device to realize the overall lifting of the steel cage lifting device.

[0025] like Figures 1-2 As shown, embodiments of this utility model also disclose the following more optimized specific structures:

[0026] The Y-shaped support frame 3 consists of a limiting push block 32, a push rod 31 fixed to the top of the limiting push block 32, and a support arm 33 rotatably installed on both sides of the limiting push block 32. Specifically, the limiting push block 32 has rotating grooves on both sides, one end of the support arm 33 is rotatably installed into the rotating groove through a rotating shaft in the groove, and the other end of the support arm 33 is rotatably installed onto the rod body of the boom rod 7.

[0027] The top of push rod 31 is connected to the piston rod of drive cylinder 5 via rod joint 6.

[0028] Specific reference Figure 2 The vertical plate frame 2 is provided with a vertical support limit strip hole 13. The back side of the limit push block 32 is equipped with an inner limit pin 14. The inner limit pin 14 is machined into the support limit strip hole 13 to realize the limit movement and increase the overall stability of the steel cage lifting device.

[0029] The bottom of the vertical frame 2 is fixedly installed with a lowering cone 8. When the steel cage hoist is lowered as a whole, the lower cone 8 can easily fall into the cage hole of the steel cage and is not easy to get stuck during the lowering process.

[0030] The cylinder frame 4 and the cage positioning plate 1 are fixed together with M12X35 screws.

[0031] The end of the boom rod 7 is rotatably mounted onto the vertical plate frame 2 via the boom hinge 9.

[0032] The hook plate 10 is equipped with reinforcing ribs 12 to enhance its mechanical properties.

[0033] like Figures 1-2 The steel cage lifting device shown is mainly used for lifting steel cages inside pipe piles. In this embodiment, the drive cylinder 5 is a cylinder with a size of 25X80 and a cylinder thread of M22 *1.5. A solenoid valve 15 and a ball valve 16 that are matched with the cylinder are installed on the cylinder frame 4. The solenoid valve 15 is a two-position five-way solenoid valve. Both are connected to the cylinder through pipes. As a common matching structure for cylinders, their connection relationship will not be further described here.

[0034] When in use, a large lifting structure is required to drive the steel cage lifting device and the steel cage being lifted to rise or move. Before lifting the steel cage, the piston rod of the drive cylinder 5 is in the retracted state, thereby driving the Y-shaped support frame to lift upwards, and the boom rods 7 on both sides retract, so that they are placed in front of the vertical plate frame 2. During lifting, the steel cage lifting device descends as a whole, and the lower cone head 8 contacts the steel cage first. Due to its cone-shaped design, it will not be stuck at the steel bars of the steel cage, but will enter the cage hole of the steel cage, thereby driving the lower plate of the vertical plate frame 2 to also enter the cage hole. The drive cylinder 5 is activated, causing its piston rod to extend, which drives the two sets of boom rods 7 to open through the Y-shaped support frame 3. The top of the boom rods 7 simultaneously locks onto the steel bars on both sides of the cage hole, achieving quick locking, and the whole thing can be lifted up.

[0035] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A steel cage lifting device, characterized in that: The system includes a cage positioning plate (1), a vertical plate frame (2), a Y-shaped support frame (3), and a boom rod (7). The boom rod (7) has two sets. The two opening ends of the Y-shaped support frame (3) are respectively rotatably installed on the rods of the two sets of boom rods (7). The top of the cage positioning plate (1) is equipped with a drive cylinder (5) through a cylinder frame (4). The piston rod end of the drive cylinder (5) is connected to the Y-shaped support frame (3). One end of the boom rod (7) is rotatably installed on the bottom side of the vertical plate frame (2). The top of the cylinder frame (4) is equipped with a hook plate (10), and a hook shaft (11) is installed on the hook plate (10).

2. The steel cage lifting device according to claim 1, characterized in that: The Y-shaped support frame (3) consists of a limiting push block (32), a push rod (31) fixed to the top of the limiting push block (32), and support arms (33) rotatably installed on both sides of the limiting push block (32).

3. The steel cage lifting device according to claim 2, characterized in that: The limiting push block (32) has rotating grooves on both sides. One end of the support arm (33) is rotatably installed into the rotating groove through the rotating shaft in the groove, and the other end of the support arm (33) is rotatably installed onto the rod body of the boom rod (7).

4. A steel cage lifting device according to claim 2, characterized in that: The top end of the push rod (31) is connected to the piston rod of the drive cylinder (5) via a rod joint (6).

5. A steel cage lifting device according to claim 2, characterized in that: The vertical plate frame (2) is provided with a vertical opening and limiting strip hole (13), and the back side of the limiting push block (32) is equipped with an inner limiting pin (14), which is machined into the opening and limiting strip hole (13).

6. A steel cage lifting device according to claim 1, characterized in that: The bottom of the vertical plate frame (2) is fixedly installed with a lowering cone (8).

7. A steel cage lifting device according to claim 1, characterized in that: The cylinder frame (4) and the cage positioning plate (1) are fixed together by screws.

8. A steel cage lifting device according to claim 1, characterized in that: The end of the boom rod (7) is rotatably mounted to the vertical plate frame (2) via the boom hinge (9).

Images