Embedded device for hoisting prefabricated turnover concrete member

Abstract

The utility model relates to a pre-embedding device for hoisting a prefabricated turnover concrete member, belongs to the technical field of constructional engineering, and particularly relates to the pre-embedding device for hoisting the prefabricated turnover concrete member, which comprises a connecting and fixing rod piece, hoisting connecting threaded holes are formed in the ends of the connecting and fixing rod pieces, protective steel plates are welded to the top ends of the connecting and fixing rod pieces, and steel plate round holes are formed in the surfaces of the protective steel plates. According to the prefabricated turnover concrete member hoisting device, the effect of ensuring the integrity of connection is achieved, and the problems that hoisting turnover use of prefabricated turnover concrete members cannot be carried out, even the prefabricated turnover concrete members are damaged, and the turnover performance and the use function of the prefabricated turnover concrete members are seriously affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a pre-embedded device for hoisting precast reusable concrete components. Background Technique

[0002] In recent years, with the increasing emphasis on sustainable development, precast reusable concrete components have been widely used in temporary construction due to their high construction efficiency, good construction quality, and strong sustainability. The hoisting pre-embedded device for precast reusable concrete components should not only ensure the safety of hoisting, but also ensure its convenience, durability, and aesthetics.

[0003] After retrieval, the Chinese patent with the publication number CN207827677U discloses a pre-embedded hoisting device for concrete precast components. It includes an upper connecting cylinder and a lower connecting rod. The upper end of the lower connecting rod is inserted and connected to the bottom of the upper connecting cylinder, and the upper connecting cylinder and the lower connecting rod are press-fitted and fixed. An internal thread is provided on the inner wall of the upper connecting cylinder; an anchor cap is provided at the top of the upper connecting cylinder, and a positioning block with a central hole in the center is provided at the top of the anchor cap; the anchor cap includes a cylinder body, and a plurality of side wall through-windows are opened in the circumferential direction on the side wall of the cylinder body. A triangular indicator plate is provided at the outer edge of the top of the cylinder body, and a damping body is also provided on the side wall of the cylinder body.

[0004] Based on the above retrieval and combined with the existing technology, it is found that;

[0005] The above retrieved patent cannot be used for hoisting and turnover of precast reusable concrete components, and even causes damage to precast reusable concrete components, seriously affecting their turnover and use functions, so there are certain limitations. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model proposes a pre-embedded device for hoisting precast reusable concrete components, which better guarantees the connection integrity between the pre-embedded device and the precast reusable concrete components, and also ensures that the hoisting pre-embedded device is not corroded and damaged.

[0007] The technical solution to achieve the purpose of the utility model is: a pre-embedded device for hoisting precast reusable concrete components, including a connecting and fixing rod. A hoisting connection threaded hole is opened at the end of the connecting and fixing rod, a protective steel plate is welded to the top of the connecting and fixing rod, and a steel plate round hole is opened on the surface of the protective steel plate.

[0008] Preferably, a rubber gasket is fixedly installed between the connecting and fixing rod and the protective steel plate.

[0009] Preferably, a plugging bolt is threadedly connected between the connecting and fixing rod and the protective steel plate, and the plugging bolt is adapted to the steel plate round hole.

[0010] Preferably, a steel bar fixing hole is opened at the bottom end of the connecting and fixing rod, and a fixing steel bar is fixedly installed inside the steel bar fixing hole.

[0011] Compared with the prior art, the remarkable advantages of the present utility model are as follows:

[0012] Firstly: A steel bar fixing hole is arranged at the lower part of the connecting and fixing rod of the present utility model, which is more conducive to forming an integral connection with the bottom fixing steel bar in the precast reusable concrete component. A hoisting connection screw hole is arranged, and when hoisting the precast reusable concrete component, the hoisting equipment can be screwed into it for hoisting, which is convenient for operation, avoids the pollution and blockage of sundries in the hoisting connection screw hole during the casting and use of the concrete component, ensures the cleanliness of the hoisting connection screw hole, and avoids the cleaning work before the turnover hoisting of the precast concrete slab.

[0013] Secondly: The protective steel plate of the present utility model increases the contact area between the device and the surface of the precast reusable concrete component, makes its connection with the precast reusable concrete component smoother and firmer, and at the same time reduces the damage to the concrete around the embedded parts during hoisting and use. The middle of the protective steel plate is punched, and the formed steel plate round hole is slightly smaller than the diameter of the connecting and fixing rod, which not only does not affect the welding with the connecting and fixing rod, but also ensures that it does not protrude from the surface of the precast reusable concrete component after the plugging bolt is connected.

[0014] It solves the problem that the existing precast reusable concrete component cannot be hoisted and turned over for use, and even causes damage to the precast reusable concrete component, seriously affecting its turnover and use function. Description of the Drawings

[0015] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the overall first perspective structure provided by the present utility model;

[0017] Figure 2 It is a schematic cross-sectional structure provided by the present utility model.

[0018] Explanation of the reference numerals in the drawings:

[0019] 1. Connecting and fixing rod; 2. Steel plate round hole; 3. Protective steel plate; 4. Rubber gasket; 5. Hoisting connection screw hole; 6. Steel bar fixing hole; 7. Plugging bolt; 8. Bottom fixing steel bar. Detailed Embodiment

[0020] The following is a detailed description of the present utility model. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides an embedded device for hoisting precast reusable concrete components through improvement. The technical solution of the present utility model is as follows:

[0022] As Figure 1-2 shown, an embedded device for hoisting precast reusable concrete components includes a connecting and fixing rod 1. A hoisting connection screw hole 5 is opened at the end of the connecting and fixing rod 1. A protective steel plate 3 is welded to the top of the connecting and fixing rod 1. A steel plate round hole 2 is opened on the surface of the protective steel plate 3. The protective steel plate 3 increases the contact area between the device and the surface of the precast reusable concrete component, making its connection with the precast reusable concrete component smoother and firmer. At the same time, it reduces the damage to the concrete around the embedded part during hoisting and use.

[0023] Furthermore, a rubber gasket 4 is fixedly installed between the connecting and fixing rod 1 and the protective steel plate 3, which avoids the infiltration of liquids such as water and oil into the hoisting connection screw hole 5 and plays a better sealing role.

[0024] Furthermore, a plugging bolt 7 is threadedly connected between the connecting and fixing rod 1 and the protective steel plate 3. The plugging bolt 7 is adapted to the steel plate round hole 2 and is connected to the plugging bolt 7 before and during the pouring of the precast reusable concrete component, which avoids the pollution and blockage of the hoisting connection screw hole 5 by sundries during the pouring and use of the concrete component, ensures the cleanliness of the hoisting connection screw hole 5, and avoids the cleaning work before the turnover hoisting of the concrete precast slab.

[0025] Furthermore, a steel bar fixing hole 6 is opened at the bottom end of the connecting and fixing rod 1. A bottom fixing steel bar 8 is fixedly installed inside the steel bar fixing hole 6. The steel bar fixing hole 6 is arranged at the lower part of the connecting and fixing rod 1, which is more conducive to forming an integral body with the bottom fixing steel bar 8 in the precast reusable concrete component.

[0026] The specific working method is as follows: Select a connecting and fixing rod 1 with a suitable diameter according to the screw hole diameter required for the weight of the prefabricated reusable concrete component assigned to each embedded device. Determine the length of the connecting and fixing rod 1 according to the bottom reinforcement of the prefabricated reusable concrete component to the surface of the concrete component and cut the material. Drill screw holes of the connecting and fixing rod 1 according to the screw hole diameter required for the weight of each embedded device to form hoisting connection screw holes 5. Select a suitable drill bit to drill the steel bar fixing holes 6 according to the diameter of the lower row of steel bars of the prefabricated reusable concrete component. Cut the protective steel plate 3 with a suitable thickness and diameter according to the diameter of the connecting and fixing rod 1. Select a suitable flat head plugging bolt 7 according to the hoisting connection screw holes 5. Punch a round hole 2 in the steel plate of the protective steel plate 3 with a diameter slightly larger than the diameter of the bolt head of the plugging bolt 7 according to the diameter of the bolt head of the plugging bolt 7. After aligning the centers of the provided perforated connecting and fixing rod 1 and the perforated protective steel plate 3, weld them fully. Select a suitable rubber gasket 4 according to the sizes of the round hole 2 in the steel plate and the plugging bolt 7. Place the rubber gasket 4 in the round hole 2 in the steel plate of the welded part formed by the provided connecting and fixing rod 1 and the protective steel plate 3. Connect and tighten the plugging bolt 7 to the welded part formed by the connecting and fixing rod 1 and the protective steel plate 3 with the rubber gasket 4 placed. Pass the bottom fixing steel bar 8 through the steel bar fixing hole 6, adjust the position and height, and then fix it. When hoisting the prefabricated reusable concrete component for turnover, after removing the plugging bolt 7, screw the bolt of the hoisting equipment into the hoisting connection screw hole 5 for hoisting.

[0027] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed above, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present utility model belong to the common general knowledge of those skilled in the art.

Claims

1. An embedded device for hoisting prefabricated rotatable concrete components, comprising a connecting and fixing rod (1), characterized in that: The end of the connecting and fixing rod (1) is provided with a lifting connection threaded hole (5), the top end of the connecting and fixing rod (1) is welded with a protective steel plate (3), and the surface of the protective steel plate (3) is provided with a steel plate circular hole (2).

2. The embedded device for hoisting prefabricated rotatable concrete components according to claim 1, characterized in that: A rubber gasket (4) is fixedly installed between the connecting and fixing rod (1) and the protective steel plate (3).

3. The embedded device for hoisting prefabricated rotatable concrete components according to claim 1, characterized in that: A blocking bolt (7) is threadedly connected between the connecting and fixing rod (1) and the protective steel plate (3), and the blocking bolt (7) is matched with the circular hole (2) of the steel plate.

4. The embedded device for hoisting prefabricated rotatable concrete components according to claim 1, characterized in that: A steel bar fixing hole (6) is provided at the bottom end of the connecting and fixing rod (1), and a fixing steel bar (8) is fixedly installed inside the steel bar fixing hole (6).

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