General demolding device for prefabricated components of a prefabricated building

Abstract

The utility model discloses a general formwork dismantling device of prefabricated component of assembly type building concrete, including main body pole, first limit disc, second limit disc, impact column, handle, reinforcing block, drag hook subassembly, the one end fixed reinforcing block of main body pole, is installed with drag hook subassembly on reinforcing block, drag hook subassembly is by bolt, nut, first board body, second board body, connecting rod, hook constitutes, and one first board body is equipped respectively on the both sides of reinforcing block, is equipped with first through -hole on first board body, is equipped with second through -hole on reinforcing block, the utility model discloses through the cooperation of impact column and limit disc, when the high -speed motion impact of impact column hits first limit disc, the whole device can produce very big tension under the inertial effect of impact column, so that the device can use smaller force to produce bigger tension to the pouring mould, so that the pouring mould can conveniently carry out the dismantling, and the operator need not directly contact with the pouring mould, and the operator can obtain better security guarantee when disassembling.

Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated components, and in particular to the technical field of tensile hammers. Background Technology

[0002] Prefabricated buildings require the use of precast concrete components. Casting molds are often used in the precasting process. After casting, the precast component inevitably sticks to the casting mold, resulting in a strong bond between them. Additionally, some castings contain reinforcing bars that pass through the casting mold. The casting mold has pre-drilled holes to prevent cement leakage during casting. These holes have small gaps between the reinforcing bars and the mold, leading to friction when removing the mold. This increases the resistance during disassembly. Therefore, a significant amount of force is required to separate the casting mold from the precast component.

[0003] When disassembling existing casting molds, operators use ordinary hammers, crowbars, and other tools. Hammering can cause uneven stress on the components, resulting in cracks or even damage. Crowbars are laborious, inefficient, and difficult to use. Furthermore, this method of disassembly can easily lead to injuries to operators from steel bars when disassembling casting molds with steel bars passing through them, making the disassembly process unsafe.

[0004] Although there are some simple mechanical dismantling devices, these devices have poor versatility, are difficult to adapt to components of different sizes and structures, and are complex to operate, requiring high skill from operators. All of these factors seriously affect the quality and efficiency of dismantling precast concrete components. Summary of the Invention

[0005] The purpose of this utility model is to solve the problems in the prior art and propose a universal demolding device for precast concrete components of assembled buildings, which makes the demolding of the casting mold easier and safer.

[0006] To achieve the above objectives, this utility model proposes a universal demolding device for precast concrete components in assembled buildings, comprising a main rod, a first limiting plate, a second limiting plate, an impact column, a handle, a reinforcing block, and a hook assembly. A reinforcing block is fixed to one end of the main rod, and a hook assembly is installed on the reinforcing block. The hook assembly consists of a bolt, a nut, a first plate, a second plate, a connecting rod, and a hook. A first plate is provided on each side of the reinforcing block, with a first through hole on the first plate and a second through hole on the reinforcing block. The bolt passes through the second through hole and the two... The first through hole has a nut screwed onto a bolt. The head of the bolt and the nut clamp two first plates. The ends of the two first plates away from the main rod are connected by a second plate. A connecting rod is fixed to the end of the second plate away from the main rod. The end of the connecting rod has a hook. A first limiting plate and a second limiting plate are fixed on the main rod. The second limiting plate is located between the first limiting plate and the reinforcing block. An impact post is provided between the first limiting plate and the second limiting plate. A third through hole is provided on the impact post. The main rod passes through the third through hole. A handle is fixed on the impact post.

[0007] Preferably, the handle surface has an anti-slip texture.

[0008] Preferably, the inner walls of both the first and second through holes are provided with rubber elastic sleeves.

[0009] Preferably, the outer diameter of the impact column is larger than the outer diameter of the first limiting plate, one end of the impact column is provided with a threaded section, the threaded section is provided with an external thread, the threaded section is located near the first limiting plate section of the impact column, and a weight-increasing ring is screwed on the threaded section.

[0010] Preferably, a protective column is fixed to the side of the impact column away from the reinforcing block, the outer diameter of the protective column is smaller than the outer diameter of the impact column, and the third through hole penetrates the protective column.

[0011] Preferably, the hook is one of an S-shaped hook, a J-shaped hook, or a straight hook.

[0012] The beneficial effects of this utility model are as follows: By cooperating with the impact column and the limiting plate, when the impact column strikes the first limiting plate at high speed, the entire device can generate a large pulling force under the inertia of the impact column. This allows the device to generate a large pulling force on the casting mold with a small force, making the casting mold easy to remove. At the same time, the operator does not need to directly contact the casting mold, and the operator can be better guaranteed during disassembly. The detachable hook assembly means that if the hook is straightened or broken, only the hook assembly needs to be replaced, without replacing the entire device, thus reducing maintenance costs. The threaded section combined with the weight-adding ring can increase the inertia of the impact column, making the device more versatile.

[0013] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a front view of a universal demolding device for precast concrete components of assembled buildings, according to this utility model.

[0015] In the diagram: 1-Main rod, 2-Hook, 3-Impact post, 11-First limiting plate, 12-Second limiting plate, 15-Reinforcing block, 16-Second through hole, 20-Connecting rod, 21-First plate, 22-Second plate, 23-First through hole, 24-Bolt, 25-Nut, 30-Third through hole, 31-Handle, 32-Weight-increasing ring, 33-Protective post. Detailed Implementation

[0016] Example 1:

[0017] See Figure 1 This utility model discloses a universal demolding device for precast concrete components of assembled buildings, comprising a main rod 1, a first limiting plate 11, a second limiting plate 12, an impact column 3, a handle 31, a reinforcing block 15, and a hook assembly. A reinforcing block 15 is fixed to one end of the main rod 1, and a hook assembly is installed on the reinforcing block 15. The hook assembly consists of bolts 24, nuts 25, a first plate 21, a second plate 22, a connecting rod 20, and hooks 2. A first limiting plate 11 is provided on each side of the reinforcing block 15. A plate 21 has a first through hole 23 and a reinforcing block 15 has a second through hole 16. A bolt 24 passes through the second through hole 16 and the two first through holes 23. A nut 25 is screwed onto the bolt 24. The head of the bolt 24 and the nut 25 clamp the two first plates 21. The ends of the two first plates 21 away from the main rod 1 are connected by a second plate 22. A connecting rod 20 is fixed to the end of the second plate 22 away from the main rod 1. The end of the connecting rod 20 is provided with a hook 2.

[0018] The main body rod 1 is fixed with a first limiting plate 11 and a second limiting plate 12. The second limiting plate 12 is located between the first limiting plate 11 and the reinforcing block 15. An impact post 3 is provided between the first limiting plate 11 and the second limiting plate 12. A third through hole 30 is provided on the impact post 3. The main body rod 1 passes through the third through hole 30. A handle 31 is fixed on the impact post 3.

[0019] To improve the anti-slip performance of the handle 31, the handle 31 has a circumference of 12cm-15cm and a 2mm deep anti-slip texture on its surface.

[0020] To prevent the bolt 24 from being damaged during use, rubber elastic sleeves are provided on the inner walls of the first through hole 23 and the second through hole 16.

[0021] Example 2:

[0022] In order to increase the inertia of the impact column 3, the outer diameter of the impact column 3 is larger than the outer diameter of the first limiting plate 11. One end of the impact column 3 is provided with a threaded section, and the threaded section is provided with an external thread. The threaded section is located near the first limiting plate 11 of the impact column 3, and a weight-increasing ring 32 is screwed on the threaded section.

[0023] To prevent the threaded section from deforming during impact, a protective post 33 is fixed on the side of the impact post 3 away from the reinforcing block 15. The outer diameter of the protective post 33 is smaller than the outer diameter of the impact post 3, and the third through hole 30 penetrates the protective post 33.

[0024] Example 3:

[0025] To ensure the device's adaptability, the hook 2 can be one of an S-shaped hook, a J-shaped hook, or a straight hook, made of chromium-molybdenum alloy steel with a rounded tip. The S-shaped hook is 10cm long and has a hook opening width of 3cm; the J-shaped hook is 12cm long and has a bending radius of 4cm; the straight hook is 8cm long and has a hook body diameter of 1cm.

[0026] The working process of this utility model:

[0027] This utility model discloses a universal demolding device for precast concrete components in assembled buildings. During operation, a suitable hook assembly and weight-reinforcing ring 32 are assembled as needed. The hook 2 hooks onto the casting mold, and the handle 31 is held to slowly push the impact column 3 forward until it contacts the second limiting plate 12. Then, it is quickly pulled backward, causing the impact column 3 to collide with the first limiting plate 11. Due to the large backward inertia of the impact column 3, the entire device generates a large backward pulling force on the casting mold upon impact, pulling the casting mold backward. Then, the impact column 3 is slowly pushed forward again until it contacts the second limiting plate 12, and then quickly pulled backward. This process is repeated multiple times to separate the casting mold from the cast component.

[0028] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A universal demolding device for precast concrete components in assembled buildings, characterized in that: The system includes a main rod (1), a first limiting plate (11), a second limiting plate (12), an impact post (3), a handle (31), a reinforcing block (15), and a hook assembly. One end of the main rod (1) is fixed with a reinforcing block (15), and a hook assembly is installed on the reinforcing block (15). The hook assembly consists of a bolt (24), a nut (25), a first plate (21), a second plate (22), a connecting rod (20), and a hook (2). A first plate (21) is provided on each side of the reinforcing block (15). The first plate (21) has a first through hole (23), and the reinforcing block (15) has a second through hole (16). The bolt (24) passes through the second through hole (16) and the two first through holes (23). The nut (25) is screwed onto the bolt (24). The head of 24) and the nut (25) clamp the two first plates (21). The ends of the two first plates (21) away from the main rod (1) are connected by the second plate (22). A connecting rod (20) is fixed at the end of the second plate (22) away from the main rod (1). A hook (2) is provided at the end of the connecting rod (20). A first limiting plate (11) and a second limiting plate (12) are fixed on the main rod (1). The second limiting plate (12) is located between the first limiting plate (11) and the reinforcing block (15). An impact post (3) is provided between the first limiting plate (11) and the second limiting plate (12). A third through hole (30) is provided on the impact post (3). The main rod (1) passes through the third through hole (30). A handle (31) is fixed on the impact post (3).

2. The universal demolding device for precast concrete components of assembled buildings as described in claim 1, characterized in that: The handle (31) has an anti-slip texture on its surface.

3. The universal demolding device for precast concrete components of assembled buildings as described in claim 1, characterized in that: Rubber elastic sleeves are provided on the inner walls of the first through hole (23) and the second through hole (16).

4. The universal demolding device for precast concrete components of assembled buildings as described in claim 1, characterized in that: The outer diameter of the impact column (3) is larger than the outer diameter of the first limiting plate (11). One end of the impact column (3) is provided with a threaded section, and the threaded section is provided with an external thread. The threaded section is located in the section of the impact column (3) near the first limiting plate (11), and a weight-increasing ring (32) is screwed on the threaded section.

5. A universal demolding device for precast concrete components in assembled buildings as described in claim 4, characterized in that: A protective column (33) is fixed on the side of the impact column (3) away from the reinforcing block (15). The outer diameter of the protective column (33) is smaller than the outer diameter of the impact column (3). The third through hole (30) penetrates the protective column (33).

6. A universal demolding device for precast concrete components of assembled buildings as described in any one of claims 1-5, characterized in that: The hook (2) is one of the following: S-type hook, J-type hook, or straight hook.

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