A hoisting device for steel formwork

Abstract

This utility model discloses a hoisting device for steel formwork, relating to the field of steel formwork hoisting. It addresses the problem in existing technologies where the connection between the hook and the steel formwork is unstable, leading to tilting and slippage during hoisting and posing safety hazards. H-shaped fixing beams are fixedly connected to both ends of the two longitudinal connecting rods and to the outside of the two transverse connecting rods. Load-bearing sliders are slidably connected to both sides of the middle of the two H-shaped fixing beams. Four balancing components are fixedly connected in a circular array at the upper end of the rectangular support frame. Each balancing component includes a first rectangular fixing plate, a second rectangular fixing plate, and a counterweight adjusting slider, which is positioned between the first and second rectangular fixing plates. Through the balancing components, dynamic balance adjustment is achieved during hoisting, effectively preventing the steel formwork from tilting.

Description

Technical Field

[0001] This utility model relates to the field of steel formwork hoisting, specifically a hoisting device for steel formwork. Background Technology

[0002] Steel formwork is a metal mold used for concrete pouring and shaping. It is typically welded from high-strength steel plates and structural steel, featuring high rigidity, high precision, and durability. It is widely used in the construction of walls, columns, beams, and slabs in buildings, bridges, tunnels, and other engineering projects. Its surface is treated with rust prevention, resulting in a smooth and flat surface that ensures excellent appearance quality after concrete molding, reducing the need for secondary plastering. Steel formwork can be reused multiple times (up to hundreds of times), is assembled using bolts or clamps, and is easy to disassemble, resulting in high construction efficiency. It is more environmentally friendly and economical than traditional wooden formwork. However, steel formwork requires hoisting equipment for installation.

[0003] For example, authorization announcement number CN 203222740 U discloses a steel formwork lifting and hoisting device, including a fixed support, a rotating shaft, the fixed support and the rotating shaft being movably connected, and rollers at both ends of the rotating shaft; the lower end of the lifting rod is fixedly connected to the fixed support, the lower end of the operating rod is fixedly connected to the fixed support, and the upper part of the lifting rod and the upper part of the operating rod are fixedly connected by a connecting rod; the lifting rod, operating rod, and connecting rod form a triangular structure; the upper end of the lifting rod is provided with a hook, and the upper end of the operating rod is provided with a handle. This utility model discloses a steel formwork lifting and hoisting device, which is simple in structure, flexible in operation, safe, efficient, and economical. It is especially suitable for the lifting and transportation of formwork during the installation and dismantling of large bridge anti-collision guardrail steel formwork.

[0004] However, the connection between the hook and the steel formwork in the above technology is not stable. The steel formwork is prone to tilting and slipping during hoisting, which poses a safety hazard. Therefore, the market urgently needs to develop a hoisting device for steel formwork to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a hoisting device for steel formwork, so as to solve the problem mentioned in the background art that the connection between the existing technology and the steel formwork is unstable, and the steel formwork is prone to tilting and slipping during hoisting, which poses a safety hazard.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device for steel formwork, comprising a cross support frame, a main hoisting rope fixedly connected to the upper middle part of the cross support frame, transverse connecting rods fixedly connected to both ends of the cross support frame, longitudinal connecting rods fixedly connected to both sides of the two transverse connecting rods, H-shaped fixing beams fixedly connected to both ends of the two longitudinal connecting rods and to the outside of the two transverse connecting rods, load-bearing sliders slidably connected to both sides of the middle of the two H-shaped fixing beams, a lifting ring fixedly connected to the lower end of each load-bearing slider, connecting blocks fixedly connected to both ends of the upper ends of the two longitudinal connecting rods, a rectangular support frame fixedly connected to the upper ends of the four connecting blocks, and four balancing components fixedly connected in a circular array to the upper end of the rectangular support frame, the balancing components comprising a first rectangular fixing plate, a second rectangular fixing plate, and a counterweight adjusting slider, the lower ends of the first and second rectangular fixing plates being fixedly connected to the upper surface of the rectangular support frame, and the counterweight adjusting slider being disposed between the first and second rectangular fixing plates.

[0007] Preferably, a connecting post is fixedly connected to the upper middle part of the main hoisting rope, and the outer side of the connecting post is connected to the upper middle part of the two horizontal connecting rods and the upper middle part of the two longitudinal connecting rods through a balance pull rope.

[0008] Preferably, the upper end face of the H-shaped fixed beam has multiple pin holes at equal intervals at both the front and rear ends. The load-bearing slider and the H-shaped fixed beam are connected by two pins passing through the load-bearing slider and then being inserted into the two pin holes for limiting connection.

[0009] Preferably, a screw is rotatably connected between the first rectangular fixing plate and the second rectangular fixing plate at the middle, and the screw passes through the middle of the counterweight adjusting slider and is threadedly connected to the counterweight adjusting slider.

[0010] Preferably, a drive motor is fixedly connected to the outside of the first rectangular fixing plate, and a section of the screw passes through the first rectangular fixing plate and is fixedly connected to the output end of the drive motor.

[0011] Preferably, a gyroscope and a control device are fixedly connected to both sides of the upper middle part of the cross support frame.

[0012] Preferably, the gyroscope and the control device are electrically connected, and the control device is electrically connected to the four drive motors.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, dynamic balance adjustment during hoisting is achieved by setting up the balance components. The four balance components, together with the gyroscope and control device, can detect and automatically adjust the counterweight position in real time, effectively preventing the steel formwork from tilting during hoisting and greatly improving the hoisting stability.

[0015] (2) In this utility model, by setting the load-bearing slider, the position of the lifting point can be flexibly adjusted according to the steel template of different size and weight, so that the lifting force is evenly distributed and the deformation caused by excessive local force is avoided. At the same time, the pin fixing method is simple to operate and safe and reliable.

[0016] (3) In this utility model, by setting up the balance rope, a three-dimensional traction structure is formed around the main hoisting rope, which can disperse the hoisting stress in multiple directions, significantly reduce the swing amplitude of the steel formwork in the air, and ensure that the hoisting process is stable and controllable. Attached Figure Description

[0017] Figure 1 This is a front view of a hoisting device for steel formwork according to the present invention;

[0018] Figure 2 This is a side sectional view of the load-bearing slider of this utility model;

[0019] Figure 3 This is a side sectional view of the balancing component of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Cross support frame; 101. Main lifting rope; 102. Connecting column; 103. Balance rope; 104. Horizontal connecting rod; 2. Longitudinal connecting rod; 3. H-shaped fixed beam; 301. Pin hole; 302. Load-bearing slider; 303. Lifting ring; 304. Pin; 4. Connecting block; 401. Rectangular support frame; 5. Balancing assembly; 501. First rectangular fixing plate; 502. Second rectangular fixing plate; 503. Screw; 504. Counterweight adjusting slider; 505. Drive motor; 6. Gyroscope; 7. Control device. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a hoisting device for steel formwork, comprising a cross support frame 1. A main hoisting rope 101 is fixedly connected to the middle of the upper end of the cross support frame 1. Horizontal connecting rods 104 are fixedly connected to both the front and rear ends of the cross support frame 1. Longitudinal connecting rods 2 are fixedly connected to both sides of the two horizontal connecting rods 104. A connecting column 102 is fixedly connected to the upper end of the middle of the two horizontal connecting rods 104 and the middle of the upper ends of the two longitudinal connecting rods 2, respectively, via balance ropes 103. When the steel formwork is hoisted to the lower end of the cross support frame 1, it is supported by four balance ropes 103. The tie rope 103 and the main hoisting rope 101 form a three-dimensional traction mechanism to distribute stress during the hoisting of the cross support frame 1 and prevent the steel formwork from swaying. H-shaped fixed beams 3 are fixedly connected to the front and rear ends of the two longitudinal connecting rods 2 and to the outside of the two transverse connecting rods 104. Load-bearing sliders 302 are slidably connected to both sides of the middle of the two H-shaped fixed beams 3. Each load-bearing slider 302 is fixedly connected to a lifting ring 303 at its lower end. By manually adjusting the position of the four load-bearing sliders 302 on the H-shaped fixed beams 3 and locking them by inserting pins 304 into the corresponding pin holes 301, the four lifting rings 303 are aligned with the formwork hoisting points and are evenly stressed.

[0024] Please see Figure 2 , Figure 3 and Figure 4Two longitudinal connecting rods 2 are fixedly connected to their front and rear ends with connecting blocks 4. A rectangular support frame 401 is fixedly connected to the upper ends of the four connecting blocks 4. Four balancing components 5 are fixedly connected to the upper end of the rectangular support frame 401 in a circular array. Each balancing component 5 includes a first rectangular fixing plate 501, a second rectangular fixing plate 502, and a counterweight adjusting slider 504. The lower ends of the first and second rectangular fixing plates 501 and 502 are fixedly connected to the upper surface of the rectangular support frame 401. The counterweight adjusting slider 504 is positioned between the first and second rectangular fixing plates 501 and 502. Multiple pin holes 301 are evenly spaced at both ends of the middle section of the upper surface of the H-shaped fixed beam 3. The load-bearing slider 302 and the H-shaped fixed beam 3 are connected by two pins 304 passing through the load-bearing slider 302 and then inserting into two pin holes 301 for positioning. The first rectangular fixing plate 501 and the second rectangular fixing plate 502... A screw 503 is rotatably connected between the middle of the 02 components. The screw 503 passes through the middle of the counterweight adjustment slider 504 and is threadedly connected to the counterweight adjustment slider 504. A drive motor 505 is fixedly connected to the outside of the first rectangular fixing plate 501. One end of the screw 503 passes through the first rectangular fixing plate 501 and is fixedly connected to the output end of the drive motor 505. A gyroscope 6 and a control device 7 are fixedly connected to the two sides of the middle of the upper end of the cross support frame 1, respectively. The gyroscope 6 and the control device 7 are electrically connected. The control device 7 is electrically connected to the four drive motors 505. After the hoisting is started, the gyroscope 6 monitors the horizontal state of the cross support frame 1 in real time. If tilt is detected, the control device 7 will calculate the deviation and control the corresponding drive motor 505 to operate. The drive screw 503 drives the counterweight adjustment slider 504 to move (for example, when tilting to the left, the counterweight moves to the right). Automatic leveling is achieved by dynamically adjusting the counterweight distribution of the four balance components 5.

[0025] Working Principle: During use, firstly, based on the size and center of gravity of the steel formwork, manually adjust the positions of the four load-bearing sliders 302 on the H-shaped fixed beam 3 to accurately align the lifting rings 303 with the lifting points of the steel formwork. Then, fix the load-bearing sliders 302 by inserting pins 304 into the corresponding pin holes 301. During hoisting, the main lifting rope 101, through the connecting column 102 and the four balance ropes 103 forming a three-dimensional traction system, evenly distributes the hoisting stress, effectively preventing the steel formwork from swaying. Simultaneously, the gyroscope 6 monitors the horizontal state of the cross support frame 1 in real time. When tilting is detected, the control device 7 immediately calculates the tilt angle and direction and controls the corresponding drive motor 505 to operate, driving the screw 503 to move the counterweight adjustment slider 504 (e.g., moving the counterweight to the right when tilting to the left). By dynamically adjusting the counterweight distribution of the four balance components 5, automatic leveling is achieved during the hoisting process, ensuring the steel formwork remains stable until it is precisely positioned.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hoisting device for steel formwork, comprising a cross support frame (1), characterized in that: The cross support frame (1) is fixedly connected to the middle of its upper end with a main lifting rope (101). Both ends of the cross support frame (1) are fixedly connected with transverse connecting rods (104). Both sides of the two transverse connecting rods (104) are fixedly connected with longitudinal connecting rods (2). H-shaped fixing beams (3) are fixedly connected to both ends of the two longitudinal connecting rods (2) and to the outside of the two transverse connecting rods (104). Load-bearing sliders (302) are slidably connected to both sides of the middle of the two H-shaped fixing beams (3). A lifting ring (303) is fixedly connected to the lower end of each load-bearing slider (302). The upper ends of the two longitudinal connecting rods (2) are fixedly connected with the main lifting rope (101). Both ends are fixedly connected to connecting blocks (4), and the upper ends of the four connecting blocks (4) are fixedly connected to a rectangular support frame (401). The upper end of the rectangular support frame (401) is fixedly connected to four balancing components (5) in a circular array. The balancing components (5) include a first rectangular fixing plate (501), a second rectangular fixing plate (502), and a counterweight adjustment slider (504). The lower ends of the first rectangular fixing plate (501) and the second rectangular fixing plate (502) are fixedly connected to the upper end face of the rectangular support frame (401). The counterweight adjustment slider (504) is located between the first rectangular fixing plate (501) and the second rectangular fixing plate (502).

2. The hoisting device for steel formwork according to claim 1, characterized in that: The upper part of the main hoisting rope (101) is fixedly connected to a connecting column (102). The outer side of the connecting column (102) is connected to the upper middle part of the two horizontal connecting rods (104) and the upper middle part of the two longitudinal connecting rods (2) through a balance pull rope (103).

3. The hoisting device for steel formwork according to claim 1, characterized in that: The upper end face of the H-shaped fixed beam (3) has multiple pin holes (301) at equal intervals at both the front and rear ends. The load-bearing slider (302) and the H-shaped fixed beam (3) are connected by two pins (304) passing through the load-bearing slider (302) and then being inserted into the two pin holes (301) respectively for limiting connection.

4. A hoisting device for steel formwork according to claim 1, characterized in that: A screw (503) is rotatably connected between the first rectangular fixing plate (501) and the second rectangular fixing plate (502). The screw (503) passes through the middle of the counterweight adjusting slider (504) and is threadedly connected to the counterweight adjusting slider (504).

5. A hoisting device for steel formwork according to claim 4, characterized in that: A drive motor (505) is fixedly connected to the outside of the first rectangular fixing plate (501), and a section of the screw (503) passes through the first rectangular fixing plate (501) and is fixedly connected to the output end of the drive motor (505).

6. A hoisting device for steel formwork according to claim 5, characterized in that: The cross support frame (1) has a gyroscope (6) and a control device (7) fixedly connected to the two sides of the upper middle part.

7. A hoisting device for steel formwork according to claim 6, characterized in that: The gyroscope (6) is electrically connected to the control device (7), and the control device (7) is electrically connected to the four drive motors (505).

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