A protective device for hoisting a steel structure

Abstract

The utility model relates to house building technical field discloses a protection device for steel structure hoisting, including hoisting work piece, fixed ring, protection mechanism, hoisting rope and hoisting ring, the fixed ring is fixedly connected with in four corners on hoisting work piece, the hoisting rope is swingingly connected with on fixed ring, the hoisting ring is swingingly connected with on the side away from fixed ring of hoisting rope, be provided with protection mechanism on hoisting rope, and the positioning block is set up in four corners in hoisting work piece, clockwise rotate knob, threaded rod advances to protection rope direction, adjustment block is close to protection rope, anticlockwise rotate knob, threaded rod reversely retreats back, adjustment block is far from protection rope, and the damping wheel is installed in adjustment block, when adjustment block is close to protection rope, the damping wheel and protection rope surface contact and produce pressure, the greater the pressure, the greater the friction between the two, the greater the damping force that protection rope moves and receives, through the rotation knob, the displacement of adjustment block can be accurately controlled, thereby realizing the continuous regulation of damping force.

Description

Technical Field

[0001] The present utility model relates to the technical field of house construction, in particular to a protective device for steel structure hoisting. Background Art

[0002] In steel structure construction, hoisting operation is a key link, and its safety directly affects construction progress and personnel safety. Existing steel structure hoisting mostly relies on the cooperation of hoisting ropes and hoisting rings to lift workpieces, but there are many potential safety hazards in actual operation: on one hand, large-sized steel structure workpieces have large volume and high weight, and are prone to shaking caused by center of gravity deviation during hoisting, which leads to uneven stress on the hoisting ropes, and local wear or fracture may occur after long-term use; on the other hand, when the hoisting rope breaks suddenly, there is a lack of effective buffer protection mechanism, and falling of the workpiece may cause serious safety accidents; At present, some protective devices only use auxiliary ropes with fixed strength for reinforcement, but cannot flexibly adjust the protection strength according to working conditions such as workpiece weight and hoisting height, which has the problems that excessive protection affects hoisting flexibility or insufficient protection is difficult to deal with emergencies; in addition, traditional protection structures are mostly rigid connections, which are prone to stress concentration when the workpiece shakes or the stress changes suddenly, which not only has limited protection effect, but also may aggravate the damage to the hoisting rope or the workpiece itself. In view of this, we propose a protective device for steel structure hoisting to solve the existing problems. Contents of the Utility Model

[0003] The purpose of the present utility model is to provide a protective device for steel structure hoisting to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present utility model provides the following technical solution: a protective device for steel structure hoisting to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: a protective device for steel structure hoisting, comprising a hoisting workpiece, fixing rings, a protection mechanism, hoisting ropes and a hoisting ring, wherein the four corners of the hoisting workpiece are each fixedly connected with a fixing ring, each fixing ring is movably connected with a hoisting rope, one side of the hoisting rope away from the fixing ring is each movably connected with the hoisting ring, the hoisting ropes are provided with the protection mechanism, the four corners inside the hoisting workpiece are provided with positioning blocks, and the positioning blocks are provided with protection ropes inside the protection mechanism.

[0006] Preferably, the protection mechanism comprises a protection shell, a limiting groove, a knob, a fixing frame, a threaded rod, a damping wheel, a guide wheel and an adjusting block, the protection shell is installed on one side of the hoisting rope close to the hoisting ring, the fixing frame is fixedly connected inside the protection shell, the limiting groove is opened on the surface of the fixing frame, the adjusting block is slidably connected inside the limiting groove, one side of the adjusting block is movably connected with the threaded rod, the threaded rod is located on the fixing frame, and the knob is arranged on one side of the threaded rod away from the adjusting block.

[0007] Preferably, the adjusting block is provided with a damping wheel, and a guide wheel is movably connected to one side of the protective shell. The protective rope is located on the guide wheel, and the protective rope and the damping wheel cooperate with each other.

[0008] Preferably, the protective rope is fixedly connected to both sides of the hoisted workpiece on the side furthest from the positioning block.

[0009] Compared with the prior art, the beneficial effects of this utility model are: When the knob is rotated, the threaded rod rotates synchronously, thus converting the rotation of the threaded rod into linear motion along the axial direction. Rotating the knob clockwise pushes the threaded rod towards the protective rope, bringing the adjusting block closer to the protective rope. Rotating the knob counterclockwise retracts the threaded rod, moving the adjusting block away from the protective rope. The damping wheel is installed inside the adjusting block. When the adjusting block approaches the protective rope, the damping wheel contacts the surface of the protective rope and generates pressure. The greater the pressure, the greater the friction between the two, and the greater the damping force on the protective rope when it moves. By rotating the knob, the displacement of the adjusting block can be precisely controlled, thereby achieving continuous adjustment of the damping force.

[0010] When the workpiece sways slightly, the friction of the damping wheel will suppress the sway amplitude and improve the hoisting stability. When the hoisting rope suddenly breaks, the workpiece instantly loses its main support, and the protective rope immediately bears the tension. The rapid movement of the protective rope will trigger the frictional resistance of the damping wheel, producing a buffering effect. Due to the surge in tension of the protective rope at the moment of breakage, the friction between the damping wheel and the protective rope will also increase accordingly, further slowing down the falling speed of the workpiece and giving the operator time to react. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the cooperation between the hoisting rope and the protective mechanism in this utility model; Figure 3 This is a schematic diagram of the protective mechanism in this utility model.

[0012] In the diagram: 1. Lifting workpiece; 2. Fixing ring; 3. Protective mechanism; 301. Protective shell; 302. Limiting groove; 303. Knob; 304. Fixing frame; 305. Threaded rod; 306. Damping wheel; 307. Guide wheel; 308. Adjusting block; 4. Lifting rope; 5. Lifting ring; 6. Positioning block; 7. Protective rope. Detailed Implementation

[0013] 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.

[0014] Please see as follows Figures 1-3 As shown, the present invention proposes a protective device for steel structure hoisting, including a hoisting workpiece 1, a fixing ring 2, a protective mechanism 3, a hoisting rope 4, and a hoisting ring 5. The hoisting workpiece 1 is fixedly connected to each of its four corners, and the hoisting rope 4 is movably connected to each of the fixing rings 2. The hoisting rope 4 is movably connected to the side away from the fixing ring 2. The protective mechanism 3 is provided on the hoisting rope 4, and the hoisting workpiece 1 is provided with positioning blocks 6 at its four corners. The positioning blocks 6 are provided with protective ropes 7 inside the protective mechanism 3.

[0015] In an optional embodiment, the protective mechanism 3 includes a protective shell 301, a limiting groove 302, a knob 303, a fixing frame 304, a threaded rod 305, a damping wheel 306, a guide wheel 307, and an adjusting block 308. The protective shell 301 is installed on the side of the lifting rope 4 near the lifting ring 5. The fixing frame 304 is fixedly connected inside the protective shell 301. The limiting groove 302 is formed on the surface of the fixing frame 304. The adjusting block 308 is slidably connected inside the limiting groove 302. The threaded rod 305 is movably connected to one side of the adjusting block 308 and is located on the fixing frame 304. The knob 303 is provided on the side of the threaded rod 305 away from the adjusting block 308.

[0016] In an optional embodiment, a damping wheel 306 is provided inside the adjusting block 308, and a guide wheel 307 is movably connected to one side inside the protective shell 301. The protective rope 7 is located on the guide wheel 307, and the protective rope 7 and the damping wheel 306 cooperate with each other. The knob 303 is fixedly connected to the threaded rod 305. When the knob 303 is rotated, the threaded rod 305 rotates synchronously. Therefore, the rotation of the threaded rod 305 is converted into linear motion along the axial direction. When the knob 303 is rotated clockwise, the threaded rod 305 moves towards the protective rope 7 and the adjusting block 308 moves closer to the protective rope 7. When the knob 303 is rotated counterclockwise, the threaded rod 305 moves back in the opposite direction and the adjusting block 308 moves away from the protective rope 7. The damping wheel 306 is installed inside the adjusting block 308. When the adjusting block approaches the protective rope 7, the damping wheel 306 contacts the surface of the protective rope 7 and generates pressure. The greater the pressure, the greater the friction between the two, and the greater the damping force when the protective rope moves. By rotating the knob 303, the displacement of the adjusting block 308 can be precisely controlled, thereby realizing the continuous adjustment of the damping force. Based on the weight of the workpiece and the risk of swaying, the operator maintains appropriate tension on the protective rope 7 to provide auxiliary stability without hindering fine-tuning during the lifting process. When the workpiece sways slightly, the friction of the damping wheel 306 suppresses the sway amplitude and improves lifting stability. When the lifting rope 4 suddenly breaks, the workpiece instantly loses its main support, and the protective rope 7 immediately bears the tension. The rapid movement of the protective rope 7 triggers the frictional resistance of the damping wheel 306, producing a buffering effect. Due to the surge in tension of the protective rope at the moment of breakage, the friction between the damping wheel 306 and the protective rope also increases accordingly, further slowing down the falling speed of the workpiece and giving the operator reaction time.

[0017] In an optional embodiment, the protective rope 7 is fixedly connected to both sides of the hoisting workpiece 1 on the side away from the positioning block 6.

[0018] The working principle of this utility model is as follows: When using this device, when the knob 303 is rotated, the threaded rod 305 rotates synchronously. Therefore, the rotation of the threaded rod 305 is converted into linear motion along the axial direction. When the knob 303 is rotated clockwise, the threaded rod 305 moves towards the protective rope 7, and the adjusting block 308 approaches the protective rope 7. When the knob 303 is rotated counterclockwise, the threaded rod 305 retracts in the opposite direction, and the adjusting block 308 moves away from the protective rope 7. The damping wheel 306 is installed inside the adjusting block 308. When the adjusting block approaches the protective rope 7, the damping wheel 306 contacts the surface of the protective rope 7 and generates pressure. The greater the pressure, the greater the friction between the two, and the greater the damping force when the protective rope moves. By rotating the knob 303, the displacement of the adjusting block 308 can be precisely controlled, thereby realizing continuous adjustment of the damping force. Based on the weight of the workpiece and the risk of swaying, the operator maintains appropriate tension on the protective rope 7 to provide auxiliary stability without hindering fine-tuning during the lifting process. When the workpiece sways slightly, the friction of the damping wheel 306 suppresses the sway amplitude and improves lifting stability. When the lifting rope 4 suddenly breaks, the workpiece instantly loses its main support, and the protective rope 7 immediately bears the tension. The rapid movement of the protective rope 7 triggers the frictional resistance of the damping wheel 306, producing a buffering effect. Due to the surge in tension of the protective rope at the moment of breakage, the friction between the damping wheel 306 and the protective rope also increases accordingly, further slowing down the falling speed of the workpiece and giving the operator reaction time.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for hoisting steel structures, characterized in that: The device includes a lifting workpiece, fixed rings, a protective mechanism, lifting ropes, and lifting rings. Fixed rings are fixedly connected to all four corners of the lifting workpiece, and lifting ropes are movably connected to all fixed rings. Lifting rings are movably connected to the side of the lifting ropes away from the fixed rings. A protective mechanism is provided on the lifting ropes, and positioning blocks are provided at the four corners inside the lifting workpiece. Protective ropes are provided inside the positioning blocks and the protective mechanism.

2. The protective device for steel structure hoisting according to claim 1, characterized in that: The protective mechanism includes a protective shell, a limiting groove, a knob, a fixing frame, a threaded rod, a damping wheel, a guide wheel, and an adjusting block. The protective shell is installed on the side of the lifting rope near the lifting ring. The fixing frame is fixedly connected inside the protective shell. A limiting groove is opened on the surface of the fixing frame. An adjusting block is slidably connected in the limiting groove. A threaded rod is movably connected to one side of the adjusting block, and the threaded rod is located on the fixing frame. A knob is provided on the side of the threaded rod away from the adjusting block.

3. A protective device for steel structure hoisting according to claim 2, characterized in that: The adjusting block is equipped with a damping wheel, and a guide wheel is movably connected to one side of the protective shell. The protective rope is located on the guide wheel, and the protective rope and the damping wheel cooperate with each other.

4. A protective device for steel structure hoisting according to claim 3, characterized in that: The protective rope is fixedly connected to both sides of the hoisted workpiece on the side furthest from the positioning block.

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