A lifting frame for cast-in-place beam bottom mold installation and removal

Abstract

The utility model discloses a cast -in -situ beam bottom mould is dismantled and hoists and holds frame, belongs to hoisting and holding frame field, including hoisting and holding frame main part, both sides of hoisting and holding frame main part all are fixedly installed with multiple sets of connecting plate, the top of fixed plate is provided with the pull ring, the top fixed mounting of hoisting and holding frame main part has multiple sets of slide rails, the inner wall of multiple sets of slide rails all slide installation has the sliding block, and the top fixed mounting of sliding block has the placing plate for bearing bottom mould, through pressing the bayonet, can easily remove the clamping state of positioning plate and limiting plate, and make good preparation for the movement of placing plate quickly, when placing plate slides out in the process, the supporting effect of the universal wheel setting at the bottom, effectively avoid placing plate because of one end stress and tilt or damage, ensure that placing plate smooth sliding, let bottom mould can safely, stably place on it, let construction personnel can easily, safely place and take out bottom mould on placing plate, has improved construction efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of hoisting frame technology, specifically a hoisting frame for installing and dismantling the bottom formwork of cast-in-place beams. Background Technology

[0002] In the construction of cast-in-place beams, the installation and dismantling of the bottom formwork is a critical step, and its operational efficiency and safety directly affect the progress and quality of the entire project. The performance of the hoisting frame, as an important auxiliary equipment in the bottom formwork installation and dismantling process, plays a vital role.

[0003] Currently, the existing hoisting frames used for installing and dismantling bottom formwork of cast-in-place beams on the market have fixed hoisting ropes at both ends after being transported to the appropriate position. These ropes create a certain obstruction in space. When construction workers need to move the bottom formwork or other related items placed on the hoisting frame, the operating space is greatly restricted due to the obstruction of the ropes. Construction workers have to carefully avoid the ropes to carry out their work, which not only increases the difficulty and complexity of the operation, but also significantly reduces work efficiency.

[0004] Therefore, this utility model provides a hoisting frame for installing and dismantling the bottom formwork of cast-in-place beams to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved This utility model provides a hoisting frame for installing and dismantling the bottom formwork of cast-in-place beams, aiming to solve the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam, comprising a hoisting frame body, multiple sets of connecting plates fixedly installed on both sides of the hoisting frame body, steel bars being provided on the multiple sets of connecting plates, and fixing plates being provided at the ends of the steel bars, with pull rings provided at the top of the fixing plates, multiple sets of slide rails fixedly installed at the top of the hoisting frame body, sliders being slidably installed on the inner walls of the multiple sets of slide rails, and a placement plate for supporting the bottom formwork being fixedly installed at the top of the sliders, with a support component provided at the bottom of the placement plate for supporting the end of the placement plate to slide, and locking components provided on the hoisting frame body and the placement plate for locking the placement plate.

[0007] As a preferred technical solution of this application, the support assembly includes two sets of connecting rods fixedly installed on the bottom end of one side of the placement plate, and the bottom ends of the two sets of connecting rods are provided with casters.

[0008] As a preferred technical solution of this application, the locking component includes two sets of positioning plates fixedly installed on the bottom of one side of the placement plate. Each of the two sets of positioning plates has a groove, and a spring is fixedly installed in the groove. A locking pin is fixedly installed at the end of the spring. Limiting plates are fixedly installed on both sides of one end of the hoisting frame body, and limiting holes are opened on the limiting plates. The locking pin can slide and engage with the limiting hole.

[0009] As a preferred technical solution of this application, two sets of connecting plates are fixedly installed on one bottom side of the placement plate, and a handle is rotatably installed between the two sets of connecting plates.

[0010] As a preferred technical solution of this application, a balance beam is fixedly installed between the two sets of fixed plates, and two sets of counterweight rings are slidably installed on the outer surface of the balance beam.

[0011] As a preferred technical solution of this application, the outer surface of the balance beam is provided with a connecting groove, and the outer surfaces of the two sets of counterweight rings are fixedly installed with round tubes, and the round tubes are internally threaded with fixing bolts.

[0012] (III) Beneficial Effects 1. By pressing the locking pin, the positioning plate and the limiting plate can be easily released, quickly preparing for the movement of the placement plate. As the placement plate slides out, the universal wheels at the bottom provide support, effectively preventing the placement plate from tilting or being damaged due to force on one end, ensuring that the placement plate slides out smoothly, allowing the bottom formwork to be placed safely and stably on it. During the hoisting process, the counterweight ring on the balance beam can be flexibly adjusted according to the weight distribution and center of gravity of the bottom formwork and other objects being transported, and is firmly locked with fixing bolts to prevent slippage, ensuring that the hoisting frame is always in a balanced state, allowing construction personnel to easily and safely place and remove the bottom formwork on the placement plate, improving construction efficiency and quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first overall structure of the present invention; Figure 2 This is a schematic diagram of the second overall structure of the present invention; Figure 3 This is a schematic diagram of the third overall structure of this utility model; Figure 4 This is an exploded view of the locking component in this utility model; Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Main body of the hoisting frame; 11. Connecting plate; 12. Rebar rope; 13. Fixing plate; 14. Pull ring; 2. Balance beam; 21. Counterweight ring; 22. Connecting groove; 23. Round tube; 24. Fixing bolt; 3. Slide rail; 31. Slider; 4. Placement plate; 5. Connecting plate; 51. Handle; 6. Connecting rod; 61. Caster wheel; 7. Positioning plate; 71. Groove; 72. Spring; 73. Locking pin; 8. Limiting plate; 81. Limiting hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides a hoisting frame for installing and dismantling the bottom formwork of cast-in-place beams, such as... Figures 1-5 As shown, the system includes a hoisting frame body 1. Multiple sets of connecting plates 11 are fixedly installed on both sides of the hoisting frame body 1. Steel reinforcing ropes 12 are mounted on the connecting plates 11, and fixed plates 13 are mounted at the ends of the steel reinforcing ropes 12. Pull rings 14 are mounted at the top of the fixed plates 13, facilitating connection with hoisting equipment such as hooks. Multiple sets of slide rails 3 are fixedly installed at the top of the hoisting frame body 1. Sliding blocks 31 are slidably mounted on the inner walls of the slide rails 3, and a placement plate 4 for supporting the bottom mold is fixedly mounted at the top of the sliding blocks 31. The multiple sets of slide rails 3 provide precise guide tracks for the sliding of the placement plate 4, ensuring the stability and straightness of the placement plate 4 during sliding and preventing deviation or shaking during sliding. A support component is provided at the bottom of the placement plate 4 to support the end of the placement plate 4 for sliding. Locking components are provided on the hoisting frame body 1 and the placement plate 4 to lock the placement plate 4.

[0017] The support assembly includes two sets of connecting rods 6 fixedly installed at the bottom of one side of the placement plate 4. The bottom of the two sets of connecting rods 6 is equipped with casters 61. When the placement plate 4 partially slides out, one end of it will lose the direct support of the hoisting frame body 1. At this time, the casters 61 at the bottom of the two sets of connecting rods 6 can contact the ground or other supporting surfaces in time, providing stable support for the end of the placement plate 4, preventing the placement plate 4 from tilting or being damaged due to uneven force on one end, and ensuring the safety of the bottom mold on the placement plate 4. The flexible rotation characteristics of the casters 61 also make it easy for the placement plate 4 to adjust its direction according to actual needs during the sliding process, further improving the convenience and flexibility of operation.

[0018] The locking assembly ensures that the placement plate 4 is securely fixed to the hoisting frame body 1 when it does not need to slide. The locking assembly includes two sets of positioning plates 7 fixedly installed on the bottom of one side of the placement plate 4. Each set of positioning plates 7 has a groove 71, and a spring 72 is fixedly installed in the groove 71. A locking pin 73 is fixedly installed at the end of the spring 72. Limiting plates 8 are fixedly installed on both sides of one end of the hoisting frame body 1, and limiting holes 81 are opened on the limiting plates 8. The locking pin 73 can slide and engage with the limiting holes 81. After the placement plate 4 slides into place, the locking pin 73 on the positioning plate 7 automatically slides into the limiting hole 81 on the limiting plate 8 under the elastic force of the spring 72, achieving precise locking and preventing the placement plate 4 from accidentally sliding due to shaking or external force during hoisting. This ensures the stability of the bottom mold during hoisting and improves the safety of hoisting operations.

[0019] Two sets of connecting plates 5 are fixedly installed on one bottom side of the placement plate 4. A handle 51 is rotatably installed between the two sets of connecting plates 5. When it is necessary to slide the placement plate 4, the construction personnel can hold the handle 51 to apply pulling or pushing force, thereby easily controlling the sliding direction and speed of the placement plate 4, improving the convenience and controllability of operation.

[0020] A balance beam 2 is fixedly installed between the two sets of fixed plates 13, and two sets of counterweight rings 21 are slidably installed on the outer surface of the balance beam 2. The balance beam 2 is connected between the two sets of fixed plates 13, providing an additional balance adjustment function for the entire hoisting frame. By sliding and adjusting the position of the two sets of counterweight rings 21 on the balance beam 2, the center of gravity of the hoisting frame can be flexibly adjusted according to the actual weight distribution of the bottom mold, so that the hoisting frame remains balanced during the hoisting process.

[0021] The outer surface of the balance beam 2 is provided with a connecting groove 22. The outer surfaces of the two sets of counterweight rings 21 are fixedly installed with round tubes 23, and the round tubes 23 are threaded with fixing bolts 24. The connecting groove 22 provides space for the fixing bolts 24 to be positioned and connected. When the counterweight ring 21 slides to the appropriate position, the fixing bolts 24 are screwed into the round tubes 23 and their ends are made to make tight contact with the connecting groove 22. Through the friction generated by the threaded connection, the counterweight ring 21 can be firmly fixed on the balance beam 2, preventing the counterweight ring 21 from sliding due to shaking during the hoisting process, thus ensuring the effectiveness and stability of the balance adjustment.

[0022] Working principle: When it is necessary to place or move objects, the construction personnel first press the locking pin 73 by hand. After being subjected to external force, the locking pin 73 will overcome the elastic force of the spring 72 and retract into the groove 71. As the locking pin 73 retracts, the original sliding engagement with the upper limit hole 81 of the limiting plate 8 is released, that is, the positioning plate 7 and the limiting plate 8 are unlocked. After unlocking, the construction worker holds the handle 51 that is rotatably installed between the bottom end of the placement plate 4 and the connecting plate 5 on one side and applies a pulling force. Under the action of the pulling force, the placement plate 4 slides smoothly outward from the main body 1 of the hoisting frame along the slide rail 3. During the sliding out process of the placement plate 4, the universal wheels 61 at the bottom of the two sets of connecting rods 6 fixedly installed on one side of the bottom contact the ground. The universal wheels 61 not only support the end of the placement plate 4, but also prevent the placement plate 4 from tilting or being damaged due to the force on one end. Once the placement plate 4 slides out to the appropriate position and the caster wheel 61 provides stable support, the construction workers can place the bottom formwork of the cast-in-place beam or other related objects that need to be moved smoothly on the placement plate 4. After the objects are placed, the construction workers hold the handle 51 again and apply a pushing force in the opposite direction to the previous one. Under the action of the pushing force, the placement plate 4 slides back to the top of the hoisting frame body 1 along the slide rail 3 via the slider 31. Meanwhile, during the hoisting process, the counterweight rings 21 on the balance beam 2 play an important role in ensuring the stability and safety of the hoisting. Construction personnel can adjust the positions of the two sets of counterweight rings 21 on the balance beam 2 according to the weight distribution and center of gravity of the object being hoisted. After determining the appropriate position of the counterweight rings 21, the fixing bolts 24 are screwed into the round tube 23, and their ends are made to make close contact with the connecting grooves 22 opened on the outer surface of the balance beam 2 to generate sufficient friction, thereby firmly fixing the counterweight rings 21 to the balance beam 2 and preventing the counterweight rings 21 from sliding during the hoisting process, thus ensuring the balance of the entire hoisting frame during the hoisting process.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam, comprising a hoisting frame body (1), wherein multiple sets of connecting plates (11) are fixedly installed on both sides of the hoisting frame body (1), and steel bars (12) are provided on the multiple sets of connecting plates (11), and a fixing plate (13) is provided at the end of the steel bars (12), and a pull ring (14) is provided at the top of the fixing plate (13), characterized in that: The top of the main body (1) of the hoisting frame is fixedly installed with multiple sets of slide rails (3), and the inner walls of the multiple sets of slide rails (3) are slidably installed with sliders (31), and the top of the sliders (31) is fixedly installed with a placement plate (4) for supporting the bottom mold. The bottom end of the placement plate (4) is provided with a support component for supporting the end of the placement plate (4) to slide. The main body (1) of the hoisting frame and the placement plate (4) are provided with locking components for locking the placement plate (4).

2. The hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam according to claim 1, characterized in that: The support assembly includes two sets of connecting rods (6) fixedly installed on the bottom of one side of the placement plate (4), and the bottom of the two sets of connecting rods (6) are provided with casters (61).

3. The hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam according to claim 1, characterized in that: The locking assembly includes two sets of positioning plates (7) fixedly installed on the bottom of one side of the placement plate (4). Both sets of positioning plates (7) have grooves (71) and springs (72) are fixedly installed in the grooves (71). The ends of the springs (72) are fixedly installed with pins (73). Limiting plates (8) are fixedly installed on both sides of one end of the hoisting frame body (1), and limiting holes (81) are opened on the limiting plates (8). The pins (73) can slide and engage with the limiting holes (81).

4. The hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam according to claim 1, characterized in that: Two sets of connecting plates (5) are fixedly installed on one side of the bottom end of the placement plate (4), and a handle (51) is rotatably installed between the two sets of connecting plates (5).

5. The hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam according to claim 1, characterized in that: A balance beam (2) is fixedly installed between the two sets of fixed plates (13), and two sets of counterweight rings (21) are slidably installed on the outer surface of the balance beam (2).

6. The hoisting frame for installing and dismantling the bottom formwork of a cast-in-place beam according to claim 5, characterized in that: The outer surface of the balance beam (2) is provided with a connecting groove (22), and the outer surfaces of the two sets of counterweight rings (21) are fixedly installed with round tubes (23), and the round tubes (23) are threaded with fixing bolts (24).

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