Supplementary hoisting hook for reinforced concrete beam and slab structure and hoisting method thereof

Abstract

The invention relates to a hoisting hook and a hoisting method thereof, belongs to the technical field of building construction, and particularly relates to a supplementary hoisting hook for a reinforced concrete beam plate structure and a hoisting method thereof, the supplementary hoisting hook comprises a positioning hole formed in a beam plate in a penetrating manner, and further comprises a steel plate arranged above the beam plate, mounting holes which are the same as the positioning holes in position are formed in the steel plate in a penetrating manner; the upper section of the lifting hook main body is provided with threads, and the upper section of the lifting hook main body is in threaded connection with a nut; the two positioning holes are formed in the structural beam plate, then the lifting hook body is reversely inserted below the beam plate, the head of the lifting hook body is threaded, the steel plate and the structural surface of the beam plate are fixed through the nut, the lifting hook transmits force to the steel plate, and the force borne by the steel plate is transmitted to the structural plate, so that the situation that the lifting hook is omitted in pre-embedding is avoided; the problems that in the existing construction process, the lifting hook is not buried, and the use load of the pre-buried lifting hook does not meet the design requirement and is inconvenient to disassemble and assemble are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a supplementary lifting hook for a reinforced concrete beam-slab structure and a lifting method thereof. Background Art

[0002] The construction operation of supplementary lifting hooks is very common in building construction. The addition of lifting hooks can effectively prevent lifting accidents and can also carry out lifting operations according to construction requirements.

[0003] In the prior art, during the construction stage of concrete floor slabs, when installing equipment such as elevators and escalators, embedded parts such as hooks need to be embedded when constructing the corresponding structural floor slabs. However, in the actual construction process, after the construction of the structural beam-slab is completed, there may be situations where the design is changed to add hooks, where hooks are missed during embedding, and where the service load of the embedded hooks does not meet the design requirements. Now, a supplementary lifting hook for a reinforced concrete beam-slab structure and a lifting method thereof are proposed to solve the above problems. Summary of the Invention

[0004] To solve the above technical problems, the present invention proposes a supplementary lifting hook for a reinforced concrete beam-slab structure and a lifting method thereof. By taking two positioning holes on the structural beam-slab, and then inserting the hook body reversely under the beam-slab, threading the head of the hook body, and fixing the steel plate to the structural surface of the beam-slab through a nut, the hook transfers force to the steel plate, and the steel plate transfers the force to the structural slab, thus solving the situation of missing hook embedding; at the same time, the diameter, thickness and area of the hook body can be adjusted according to the service load of the hook, ensuring that the supplementary hook meets the requirements of the service load.

[0005] The technical solution for achieving the purpose of the present invention is: a supplementary lifting hook for a reinforced concrete beam-slab structure, a supplementary lifting hook for a reinforced concrete beam-slab structure and a lifting method thereof, including positioning holes penetratingly opened on the beam-slab, a hook body disposed in the positioning holes, and further including;

[0006] A steel plate disposed above the beam-slab, and mounting holes penetratingly opened on the steel plate at the same positions as the positioning holes;

[0007] The upper section of the hook body is provided with threads, and a nut is threadedly connected to the upper section thread of the hook body.

[0008] In a certain embodiment, a regulating rod is fixedly connected to the upper surface of the steel plate, a sleeve rod is sleeved outside the regulating rod, and an auxiliary fixing clamp is fixedly connected to the lower surface of the end of the sleeve rod away from the steel plate.

[0009] In one embodiment, a number of auxiliary holes are penetrated and opened on one side of the sleeve rod, a receiving hole is opened on one side of the adjusting rod, a positioning spring is fixedly connected to the inner wall of the receiving hole, a positioning column is slidably connected to the inner wall of the receiving hole, and the bottom end of the positioning column is fixedly connected to one end of the positioning spring.

[0010] In one embodiment, an auxiliary limiting rod is slidably connected to one side of the auxiliary fixing clamp, an auxiliary clamping plate is fixedly connected to the top end of the auxiliary limiting rod, an auxiliary screw rod is rotatably connected to the lower surface of the auxiliary clamping plate, and the auxiliary screw rod is threadedly connected to the auxiliary fixing clamp.

[0011] A hoisting method for a supplementary hoisting hook for a reinforced concrete beam and slab structure includes the following steps:

[0012] Step 1: According to the construction requirements, position and set out lines on the beam and slab to determine the installation position of the hook body. After confirming the position, use drilling equipment to open positioning holes on the beam and slab.

[0013] Step 2: Insert the hook body into the positioning hole, leaving a part at the bottom of the beam and slab for convenient connection. Then, according to the length of the part of the hook body located above the beam and slab, make a mark, remove the hook body and thread the part.

[0014] Step 3: Use drilling equipment to drill holes in the steel plate to ensure that the installation holes on the steel plate are in the same position as the positioning holes on the beam and slab. Then, insert the processed hook body back into the positioning hole and the installation hole, and finally fix it with nuts.

[0015] Compared with the prior art, the remarkable advantages of this utility model are:

[0016] Firstly: In the present invention, by taking two positioning holes on the structural beam and slab, then inserting the hook body reversely under the beam and slab, threading the head of the hook body, and fixing the steel plate and the structural surface of the beam and slab with nuts, the hook transmits force to the steel plate, and the steel plate transmits the force to the structural plate, thus solving the situation of missing pre-embedded hooks.

[0017] Secondly: In the present invention, the hook is installed in the way of on-site processing and production. The diameter, thickness and area of the hook can be adjusted according to the use load of the hook, which can ensure that the supplementary hook meets the requirements of the use load and has strong practicability.

[0018] Thirdly, in the present invention, through the provided auxiliary fixing card, sleeve rod and adjusting rod, when adjustment is required according to the size of the hoisted structural plate, press the positioning column to squeeze the positioning spring, and adjust the positions of the sleeve rod and the adjusting rod at the appropriate auxiliary hole positions, so that the inner side of the auxiliary fixing card can fit against the side of the structural plate. Then rotate the auxiliary screw rod, and under the action of the thread, the auxiliary screw rod moves towards the position close to the bottom surface of the structural plate, thereby driving the upper surface of the auxiliary clamping plate to closely fit against the lower surface of the structural plate. In this way, the contact area between the steel plate and the structural plate can be increased, making the force received by the structural plate more balanced during hoisting and the hoisting more stable;

[0019] It solves the problems of missing embedding of the hook and inconvenient disassembly and assembly when the applied load of the embedded hook does not meet the design requirements that occur in the existing construction process. [[ID=,5]]Brief Description of the Drawings

[0020] The present invention will be further explained below in conjunction with the drawings and embodiments:

[0021] Figure 1 is the front view structural schematic diagram provided by the present invention in one embodiment;

[0022] Figure 2 is the front view plane (sectional) structural schematic diagram provided by the present invention in one embodiment;

[0023] Figure 3 is the construction flow chart provided by the present invention in one embodiment;

[0024] Figure 4 is the structural schematic diagram of the auxiliary fixing card provided by the present invention in one embodiment;

[0025] Figure 5 is provided by the present invention in one embodiment Figure 4 front view plane schematic diagram;

[0026] Figure 6 is the schematic diagram of the sleeve rod and the adjusting rod (sectional view) provided by the present invention in one embodiment.

[0027] Description of the Reference Numerals in the Drawings:

[0028] 1. positioning hole; 2. hook body; 3. steel plate; 4. nut; 5. adjusting rod; 6. sleeve rod; 7. auxiliary fixing card; 8. auxiliary hole; 9. positioning spring; 10. positioning column; 11. auxiliary limiting rod; 12. auxiliary clamping plate; 13. auxiliary screw rod. Detailed Embodiment

[0029] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] The present invention provides a supplementary lifting hook for a reinforced concrete beam and slab structure and its lifting method through improvement. The technical solution of the present invention is as follows:

[0031] Embodiment 1: In this embodiment,

[0032] As Figure 1 and Figure 2 shown, a supplementary lifting hook for a reinforced concrete beam and slab structure includes a positioning hole 1 penetrating through the beam and slab. A hook body 2 is arranged in the positioning hole 1, and further includes;

[0033] A steel plate 3 is arranged above the beam and slab. An installation hole with the same position as the positioning hole 1 is penetrated through the steel plate 3;

[0034] The upper part of the hook body 2 is provided with threads, and a nut 4 is threadedly connected to the upper part of the hook body 2 with threads.

[0035] As Figure 3 shown, a lifting method for a supplementary lifting hook for a reinforced concrete beam and slab structure includes the following steps:

[0036] Step 1: According to the construction requirements, position and lay out the line on the beam and slab to determine the installation position of the hook body 2. After confirming the position, use drilling equipment to open the positioning hole 1 on the beam and slab;

[0037] Step 2: Insert the hook body 2 into the positioning hole 1, leaving a part at the bottom of the beam and slab for easy connection. Then, according to the length of the part of the hook body at the upper part of the beam and slab, make a mark, remove the hook body 2 and perform tapping on this part;

[0038] Step 3: Use drilling equipment to drill the steel plate 3 to ensure that the installation hole on the steel plate 3 is in the same position as the positioning hole 1 on the beam and slab. Then, re-insert the processed hook body 2 into the positioning hole 1 and the installation hole, and finally fix it with the nut 4.

[0039] The specific working method is as follows: when the supplementary lifting hook for the reinforced concrete beam and slab structure is used, first drill two positioning holes 1 in the structural beam and slab with a water drill, then insert the hook body 2 reversely under the beam and slab. The head of the hook body 2 is threaded, and a steel plate 3 is placed. The steel plate 3 is fixed to the structural surface of the beam and slab through a nut 4. The hook body 2 transfers force to the steel plate 3, and the steel plate 3 transfers the force to the structural slab, thus solving the situation of omission of the embedded hook body 2. At the same time, the diameter, thickness and area of the steel plate 3 can be adjusted according to the use load of the hook body 2, which can ensure that the supplemented hook body 2 meets the requirements of the use load.

[0040] Embodiment 2: In this embodiment,

[0041] As Figure 4 shown, a regulating rod 5 is fixedly connected to the upper surface of the steel plate 3. A sleeve rod 6 is sleeved on the outer side of the regulating rod 5. The regulating rod 5 is slidably connected with the sleeve rod 6. The lower surface of the end of the sleeve rod 6 far away from the steel plate 3 is fixedly connected with an auxiliary fixing clamp 7. The auxiliary fixing clamp 7 is located on both sides of the structural slab.

[0042] As Figure 6 shown, in this embodiment, a number of auxiliary holes 8 are formed through one side of the sleeve rod 6. The number of auxiliary holes 8 are arranged at equal intervals. A receiving hole is formed on one side of the regulating rod 5. A positioning spring 9 is fixedly connected to the inner wall of the receiving hole. A positioning column 10 is slidably connected to the inner wall of the receiving hole. The bottom end of the positioning column 10 is fixedly connected to one end of the positioning spring 9. The outer diameter of the positioning column 10 is adapted to the inner diameter of the auxiliary hole 8.

[0043] As Figure 5 shown, in this embodiment, an auxiliary limiting rod 11 is slidably connected to one side of the auxiliary fixing clamp 7. The top end of the auxiliary limiting rod 11 is fixedly connected to an auxiliary clamping plate 12. The lower surface of the auxiliary clamping plate 12 is rotatably connected to an auxiliary screw rod 13. The auxiliary screw rod 13 is threadedly connected to the auxiliary fixing clamp 7.

[0044] The specific working method is as follows: when adjustment is needed according to the size of the hoisted structural slab, press the positioning column 10 and squeeze the positioning spring 9. Adjust the positions of the sleeve rod 6 and the regulating rod 5 at the appropriate position of the positioning hole 1 so that the inner side of the auxiliary fixing clamp 7 can fit the side of the structural slab. Then rotate the auxiliary screw rod 13. Under the action of the thread, the auxiliary screw rod 13 moves towards the position close to the bottom surface of the structural slab, thereby driving the upper surface of the auxiliary clamping plate 12 to closely fit the lower surface of the structural slab. In this way, the contact area between the steel plate 3 and the structural slab can be increased, so that the force received by the structural slab during hoisting is more balanced and the hoisting is more stable.

[0045] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include the technical solutions composed of equivalent replacements of the above technical features. The matters not covered in the present invention belong to the common general knowledge of those skilled in the art.

Claims

1. A supplementary lifting hook for a reinforced concrete beam-slab structure, comprising a positioning hole (1) penetrating through the beam-slab, characterized in that: A lifting hook body (2) is arranged in the positioning hole (1), and further includes; A steel plate (3) is arranged above the beam and slab. An installation hole having the same position as the positioning hole (1) is penetrated and opened on the steel plate (3); A thread is arranged on the upper section of the lifting hook body (2), and a nut (4) is threadedly connected to the upper section thread of the lifting hook body (2).

2. The supplementary lifting hook for a reinforced concrete beam and slab structure according to claim 1, characterized in that: A adjusting rod (5) is fixedly connected to the upper surface of the steel plate (3). A sleeve rod (6) is sleeved on the outer side of the adjusting rod (5). An auxiliary fixing clamp (7) is fixedly connected to the lower surface of the end of the sleeve rod (6) away from the steel plate (3).

3. The supplementary lifting hook for a reinforced concrete beam and slab structure according to claim 2, characterized in that: A number of auxiliary holes (8) are penetrated and opened on one side of the sleeve rod (6). A receiving hole is opened on one side of the adjusting rod (5). A positioning spring (9) is fixedly connected to the inner wall of the receiving hole. A positioning column (10) is slidably connected to the inner wall of the receiving hole. The bottom end of the positioning column (10) is fixedly connected to one end of the positioning spring (9).

4. The supplementary lifting hook for a reinforced concrete beam and slab structure according to claim 2, characterized in that: An auxiliary limiting rod (11) is slidably connected to one side of the auxiliary fixing clamp (7). An auxiliary clamping plate (12) is fixedly connected to the top end of the auxiliary limiting rod (11). An auxiliary screw rod (13) is rotatably connected to the lower surface of the auxiliary clamping plate (12). The auxiliary screw rod (13) is threadedly connected to the auxiliary fixing clamp (7).

5. A lifting method of a supplementary lifting hook for a reinforced concrete beam and slab structure according to any one of claims 1-4, characterized in that: Step 1: According to the construction requirements, position and lay out lines on the beam and slab to determine the installation position of the lifting hook body (2). After confirming the position, use drilling equipment to open the positioning hole (1) on the beam and slab; Step 2: Insert the lifting hook body (2) into the positioning hole (1). Leave a part at the bottom of the beam and slab for convenient connection. Then, according to the length of the part of the lifting hook body (2) located above the beam and slab, make a mark, remove the lifting hook body (2) and perform tapping treatment on this part; Step 3: Use drilling equipment to drill the steel plate (3) to ensure that the installation hole on the steel plate (3) is in the same position as the positioning hole (1) on the beam and slab. Then, re-insert the processed lifting hook body (2) into the positioning hole (1) and the installation hole, and finally fix it with the nut (4).

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