Reinforcing steel bar upright hoisting protection device

Abstract

The utility model discloses a reinforcing steel bar upright hoisting protection device in the field of bridge construction engineering, which comprises a top fixed clamping ring, a bottom fixed connecting piece and a top movable clamping ring, a first screw rod is downwards and vertically welded at the top end position of the top fixed clamping ring, and a height adjusting sleeve is in threaded connection with the first screw rod; a second screw rod is connected into the other end of the height adjusting sleeve through threads, a bottom fixed connecting piece is welded to the other end of the second screw rod, a movable sliding groove is formed in the top of the bottom fixed connecting piece in a penetrating mode, a bottom movable connecting piece is slidably connected into the movable sliding groove, and a second sliding rod is vertically welded to the top of the bottom movable connecting piece; a top movable clamping ring is slidably connected into the top fixed clamping ring, a first sliding rod is welded to the lower portion of the top movable clamping ring, and a sliding sleeve is slidably connected between the first sliding rod and the second sliding rod. The steel bar bundle vertical hoisting device fixes the middle upper portion and the bottom of a steel bar bundle, is suitable for vertical hoisting of steel bars of different lengths, and is safer to use.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction engineering, specifically a protective device for vertical hoisting of reinforcing bars. Background Technology

[0002] Bridge piers play a crucial role in load-bearing and support in bridge engineering. They bear the load of the bridge superstructure upwards and transfer forces to the foundation and subgrade downwards, ensuring the overall stability of the bridge. Reinforcing steel reinforcement binding is necessary for any bridge construction project; however, the lifting and hoisting of the reinforcing steel is unavoidable during construction. Generally, the reinforcing steel is placed horizontally, but sometimes it needs to be hoisted vertically. Common methods for vertically hoisting reinforcing steel include: 1. Using chain hooks or wire ropes to lift the reinforcing steel, and then adjusting its position on the hoisting equipment to make it vertical. 2. Using a crane to lift the reinforcing steel, and then using booms or slings in the air to adjust its position to make it vertical. 3. Using manual lifting of the reinforcing steel, and then using booms or slings in the air to adjust its position to make it vertical.

[0003] Traditional hoisting methods rely solely on the friction of slings to secure reinforcing bars. This method is prone to tilting and falling during hoisting, leading to worker injuries and posing significant safety risks with a low safety factor. Therefore, those skilled in the art have developed a protective device for upright hoisting of reinforcing bars to address the problems described in the background section. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for vertical hoisting of reinforcing bars to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rebar vertical hoisting protection device, comprising a top fixing ring, a bottom fixing connector, and a top movable ring. The top fixing ring is a semi-circular ring structure. A first screw is vertically welded downwards to the top of the top fixing ring. A height adjusting sleeve is threadedly connected to the first screw. A second screw is threadedly connected to the other end of the height adjusting sleeve. A bottom fixing connector is welded to the other end of the second screw. A movable sliding groove is provided through the top of the bottom fixing connector. A rotating sliding groove is provided through the side of the bottom fixing connector. A bottom movable connector is slidably connected within the movable sliding groove. Two adjusting shafts are provided on both sides of the bottom movable connector. The adjusting shafts are rotatably connected to the rotating sliding groove. A second sliding rod is vertically welded to the top of the bottom movable connector. A top movable ring is slidably connected within the top fixing ring. A first sliding rod is welded below the top movable ring. A sliding sleeve is slidably connected between the first sliding rod and the second sliding rod.

[0006] As a further embodiment of this utility model: two square adjusting grooves are symmetrically arranged on the arc edge of the top fixed retaining ring, and adjusting screws are welded to both ends of the top movable retaining ring respectively. The adjusting screws are slidably connected to the adjusting grooves, and a nut is provided on the top of the adjusting screw to fix the top movable retaining ring.

[0007] As a further improvement of this utility model: an auxiliary connecting member is slidably connected to the adjusting screw, the contact surface between the auxiliary connecting member and the top fixing ring is a fitted arc surface, and a connecting through hole is provided through the auxiliary connecting member.

[0008] As a further improvement of this utility model: the two ends of the top fixing ring are welded with mounting connecting blocks, and the mounting connecting blocks are threadedly connected with lifting rings.

[0009] As a further improvement of this utility model: an adjusting nut is welded to the middle position of the height adjusting sleeve. Rotating the adjusting nut causes the height adjusting sleeve to rotate, so that the first screw and the second screw move closer or further apart synchronously.

[0010] As a further improvement of this utility model, the bottom of the bottom fixing connector is connected to a bottom support plate by bolts.

[0011] As a further improvement of this utility model: a bottom locking threaded hole is provided on the side of the bottom fixing connector, and a bottom locking bolt is threadedly connected to the bottom locking threaded hole.

[0012] As a further embodiment of this utility model: a square positioning slider is provided at the top of both the first slide rod and the second slide rod; an installation groove is provided through the inside of the sliding sleeve; a deflection groove is provided at the center of the installation groove; a limiting groove is provided in the direction of 90° rotation of the installation groove; the two ends of the limiting groove do not penetrate the sliding sleeve; and an auxiliary installation ring is provided at the outer center of the sliding sleeve.

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

[0014] In this invention, by locking the nut at the top of the adjusting screw installed on the top movable retaining ring, the top movable retaining ring is brought close to the top fixed retaining ring, thus squeezing and fixing the steel bar bundle between the top fixed retaining ring and the top movable retaining ring, and fixing the upper half of the vertically hoisted steel bar bundle. At this time, the bottom locking bolt located on the bottom fixed retaining ring is locked, so that the bottom movable connecting piece slides along the movable retaining groove until it fits and is fixed to the bottom of the steel bar bundle, thus fixing the bottom of the vertically hoisted steel bar bundle and preventing the steel bar bundle from spreading and slipping. The hoisting equipment is used to lift the lifting ring on the top fixed connecting piece, and the hoisting process is stable and safe. In this invention, based on the height of the hoisted steel bar bundle, the adjusting nut on the height adjusting sleeve is rotated using a wrench. Rotating the adjusting nut causes the height adjusting sleeve to rotate, causing the first and second screws to move closer or further apart synchronously. This positions the top fixing ring at the upper half of the steel bar bundle. At this point, pulling the top movable ring allows it to slide into the sliding sleeve, ensuring the top movable ring is level with the top fixing hole ring. This design is convenient to adjust, suitable for steel bar bundles of different heights, has a wide range of applications, and makes hoisting safer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the top fixing ring in this utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary connecting component in this utility model;

[0018] Figure 4 This is a structural schematic diagram of the bottom fixing connector in this utility model;

[0019] Figure 5 This is a schematic diagram of the top movable retaining ring in this utility model;

[0020] Figure 6 This is a schematic diagram of the bottom movable connector in this utility model;

[0021] Figure 7 This is a top view schematic diagram of the sliding sleeve structure in this utility model;

[0022] Figure 8 This is a structural schematic diagram of cross section AA in this utility model.

[0023] In the diagram: 1. Top fixed retaining ring; 2. Top movable retaining ring; 3. Height adjusting sleeve; 4. Bottom fixed connector; 5. Bottom movable connector; 6. Sliding sleeve; 7. Bottom locking bolt; 8. Lifting ring; 9. Auxiliary connector; 10. Adjusting nut; 11. Mounting connector; 12. Adjusting slide; 13. First screw; 14. Fitting arc surface; 15. Connecting through hole; 16. Second screw; 17. Bottom support plate; 18. Rotating slide; 19. Movable slide; 20. Bottom locking threaded hole; 21. Adjusting screw; 22. First slide rod; 23. Positioning slider; 24. Second slide rod; 25. Adjusting shaft; 26. Auxiliary mounting ring; 27. Mounting slide; 28. Directional groove; 29. ​​Limiting slide. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-8 In this embodiment of the utility model, a rebar vertical hoisting protection device includes a top fixing ring 1, a bottom fixing connector 4, and a top movable ring 2. The top fixing ring 1 is a semi-circular ring structure. A first screw 13 is vertically welded downwards to the top of the top fixing ring 1. A height adjusting sleeve 3 is threadedly connected to the first screw 13. A second screw 16 is threadedly connected to the other end of the height adjusting sleeve 3. The other end of the second screw 16 is welded to the bottom fixing connector 4. A movable sliding groove 19 is provided through the top of the bottom fixing connector 4, and a rotating sliding groove 18 is provided through the side of the bottom fixing connector 4. A sliding connection is made within the movable sliding groove 19. The bottom movable connector 5 is connected to the bottom movable connector 5. Two adjusting shafts 25 are provided on both sides of the bottom movable connector 5. The adjusting shafts 25 are rotatably connected to the rotating slide groove 18. A second slide rod 24 is vertically welded to the top of the bottom movable connector 5. A top movable ring 2 is slidably connected inside the top fixed ring 1. A first slide rod 22 is welded below the top movable ring 2. A sliding sleeve 6 is slidably connected between the first slide rod 22 and the second slide rod 24. The upper part of the steel bar bundle is fixed by the top fixed ring 1 and the lower part of the steel bar bundle is fixed by the bottom fixed ring. The fixing strength of the steel bar bundle is high, preventing loosening and tilting during hoisting, and ensuring safe use.

[0026] Two square adjustment grooves 12 are symmetrically arranged on the arc edge of the top fixed retaining ring 1. Adjustment screws 21 are welded to both ends of the top movable retaining ring 2. The adjustment screws 21 are slidably connected to the adjustment grooves 12. Nuts are provided on the top of the adjustment screws 21 to fix the top movable retaining ring 2. It is easy to disassemble and lock firmly.

[0027] An auxiliary connector 9 is slidably connected to the adjusting screw 21. The contact surface between the auxiliary connector 9 and the top fixed retaining ring 1 is a fitted arc surface 14, which improves the fixed connection strength between the top fixed retaining ring 1 and the top movable retaining ring 2, and prevents the steel bar bundle from loosening and causing danger. A connecting through hole 15 is provided through the auxiliary connector 9.

[0028] The top fixing ring 1 has mounting connecting blocks 11 welded to both ends. The mounting connecting blocks 11 are threadedly connected to lifting rings 8, making it convenient for hoisting and use.

[0029] An adjusting nut 10 is welded to the middle of the height adjusting sleeve 3. Rotating the adjusting nut 10 causes the height adjusting sleeve 3 to rotate, so that the first screw 13 and the second screw 16 move closer or further apart synchronously. The height of the top fixing ring 1 is adjusted according to the height of the steel bar bundle to improve the stability during hoisting.

[0030] The bottom of the bottom fixed connector 4 is bolted to a bottom support plate 17, which supports the bottom of the steel bar bundle to prevent the steel bar bundle from slipping out of the middle position and causing danger.

[0031] The bottom fixed connector 4 has a bottom locking threaded hole 20 on its side. A bottom locking bolt 7 is threaded into the bottom locking threaded hole 20. The bottom locking bolt 7 is used to push the bottom movable connector 5 to fix the bottom of the steel bar bundle, thereby improving the fixing strength of the bottom of the steel bar bundle.

[0032] Square positioning sliders 23 are provided at the top of the first slide rod 22 and the second slide rod 24. An installation groove 27 is provided through the inside of the sliding sleeve 6. A deflection groove 28 is provided at the center of the installation groove 27. A limiting groove 29 is provided in the direction of 90° rotation of the installation groove 27. The installation is simple and quick. The two ends of the limiting groove 29 do not penetrate the sliding sleeve 6 to prevent the first slide rod 22 and the second slide rod 24 from slipping out of the sliding sleeve 6, making it safer to use. An auxiliary installation ring 26 is provided at the center of the outer side of the sliding sleeve 6.

[0033] The working principle of this utility model is as follows: First, adjust the distance between the top fixing ring 1 and the bottom fixing connector 4 according to the length of the hoisted steel bar bundle. Use a wrench to rotate the adjusting nut 10 on the height adjusting sleeve 3. Rotating the adjusting nut 10 drives the height adjusting sleeve 3 to rotate, causing the first screw 13 and the second screw 16 to move closer or further apart synchronously, so that the fixed position of the top fixing ring 1 is located in the upper half of the steel bar bundle. Adjust the angle of the bottom movable connector 5, and hoist the pre-fixed steel bar bundle horizontally above the bottom fixing connector 4 and the top fixing connector. Then, rotate the bottom movable connector 5 and simultaneously pull the top movable ring 2, so that the first sliding rod 22 and the second sliding rod 24 simultaneously slide and connect with the sliding sleeve 6. When the height of the top movable ring 2 is close to that of the top fixing ring 1, rotate the bottom movable connector 5. Insert the adjusting screw 21 at the top of the top movable retaining ring 2 into the adjusting groove 12 on the top fixed retaining ring 1. Then, install the auxiliary connecting piece 9 on the adjusting screw 21 and tighten it with a nut to bring the top movable retaining ring 2 closer to the top fixed retaining ring 1. This compresses and fixes the steel bar bundle between the top fixed retaining ring 1 and the top movable retaining ring 2, fixing the upper half of the steel bar bundle. At this time, tighten the bottom locking bolt 7 located on the bottom fixed retaining ring, allowing the bottom movable connecting piece 5 to slide along the movable groove until it fits and fixes against the bottom of the steel bar bundle, thus fixing the bottom of the vertically hoisted steel bar bundle to prevent it from spreading out and slipping. Finally, use hoisting equipment to lift the lifting ring 8 on the top fixed connecting piece. The hoisting process is stable and safe, preventing the steel bar bundle from spreading out, tilting, and slipping, improving work efficiency and hoisting safety.

[0034] 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 protective device for vertical hoisting of reinforcing bars, comprising a top fixing shackle, a bottom fixing connector, and a top movable shackle, characterized in that: The top fixing ring is a semi-circular ring structure. A first screw is vertically welded downwards to the top of the top fixing ring. A height adjusting sleeve is threaded onto the first screw. A second screw is threaded onto the other end of the height adjusting sleeve. A bottom fixing connector is welded to the other end of the second screw. A movable slide groove is provided through the top of the bottom fixing connector. A rotating slide groove is provided through the side of the bottom fixing connector. A bottom movable connector is slidably connected within the movable slide groove. Two adjusting shafts are provided on both sides of the bottom movable connector. The adjusting shafts are rotatably connected to the rotating slide groove. A second slide rod is vertically welded to the top of the bottom movable connector. A top movable ring is slidably connected within the top fixing ring. A first slide rod is welded below the top movable ring. A sliding sleeve is slidably connected between the first slide rod and the second slide rod.

2. The steel bar vertical hoisting protection device according to claim 1, characterized in that: Two square adjusting grooves are symmetrically arranged on the arc edge of the top fixed retaining ring. Adjusting screws are welded to both ends of the top movable retaining ring. The adjusting screws are slidably connected to the adjusting grooves. Nuts are provided on the top of the adjusting screws to fix the top movable retaining ring.

3. The steel bar vertical hoisting protection device according to claim 2, characterized in that: An auxiliary connector is slidably connected to the adjusting screw. The contact surface between the auxiliary connector and the top fixing ring is a fitted arc surface. A through hole is provided through the auxiliary connector.

4. The rebar vertical hoisting protection device according to claim 1, characterized in that: The top fixing ring has mounting connecting blocks welded to both ends, and lifting rings are threaded into the mounting connecting blocks.

5. A steel bar vertical hoisting protection device according to claim 1, characterized in that: An adjusting nut is welded to the middle of the height adjusting sleeve. Rotating the adjusting nut causes the height adjusting sleeve to rotate, so that the first screw and the second screw move closer or further apart synchronously.

6. A steel bar vertical hoisting protection device according to claim 1, characterized in that: The bottom of the bottom fixing connector is bolted to a bottom support plate.

7. A steel bar vertical hoisting protection device according to claim 1, characterized in that: The bottom fixing connector has a bottom locking threaded hole on its side, and a bottom locking bolt is threadedly connected to the bottom locking threaded hole.

8. A steel bar vertical hoisting protection device according to claim 1, characterized in that: Both the first slide rod and the second slide rod have square positioning sliders at their top ends. The sliding sleeve has a through mounting groove, and the center of the mounting groove has a deflection groove. The mounting groove has a limit groove in the direction of 90° rotation. The two ends of the limit groove do not penetrate the sliding sleeve. The outer center of the sliding sleeve has an auxiliary mounting ring.

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