Self-locking steel pipe hoisting clamp

Abstract

The utility model relates to a kind of lifting appliance technical field, concretely relates to a self-locking steel pipe hoisting clamp.It includes arc plate, arc plate one side is fixed with fixed seat, fixed seat is fixed with anchor head, arc plate other side is rotatably connected with rotating member, rotating member upper end and fixed seat upper end are both connected with two lifting ropes, rotating member lower end is connected with the both ends of lower wire rope, after lower wire rope is hung on anchor head, space of load-carrying pipeline is formed between lower wire rope and arc plate.This clamp is through mechanical self-locking, structure optimization and anti-drop design, solve the problem of traditional hoisting efficiency, easy to damage pipeline, give consideration to safety, convenience and economy.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a self-locking steel pipe lifting clamp. Background Technology

[0002] During long-distance pipeline welding training, the safe hoisting and movement of steel pipes in the workshop directly affects the training quality. In the past, there were two methods for handling the pipes: one was to use two slings to tie them together, but the slings were prone to wear and aging; the other was to use hooks to lift both ends of the pipe, but this method was prone to damaging the processed bevels, making the bevels unusable.

[0003] Patent document CN203806934U discloses a special lifting tool for pipe bending. During lifting, the upper part, consisting of a top cover and an upper rubber block, clamps the steel pipe from above. A steel wire rope, passing through a shackle, is hooked onto the pipe lifting machine. The lower part, consisting of a lower rubber block and a steel wire rope, wraps around the steel pipe from the bottom upwards. The rope loops at both ends of the steel wire rope are respectively hooked into the gaps between the anti-detachment pad and the pull rod. During lifting, because the pull rod and the top cover are hinged, the pull rod generates a downward force pressing the top cover, while the steel wire rope hooked into the gap between the pull rod and the pad is tightened at the same time as lifting. In this technical solution, the rope loops of the steel wire rope are hooked into the gaps between the anti-detachment pad and the pull rod, requiring separate operation of the rope loops of the two steel wire ropes before lifting, resulting in low efficiency in connecting the steel wire ropes to the lifting tool. Utility Model Content

[0004] The main purpose of this utility model is to provide a self-locking steel pipe hoisting clamp that can quickly connect the lower steel wire rope of the support tunnel to the hoisting clamp.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A self-locking steel pipe hoisting clamp includes an arc-shaped plate, a fixed seat fixed on one side of the arc-shaped plate, an anchor head fixed on the fixed seat, a rotating component rotatably connected to the other side of the arc-shaped plate, two hoisting ropes connected to the upper end of the rotating component and the upper end of the fixed seat, and the lower end of the rotating component connected to both ends of a lower wire rope. After the lower wire rope is hung on the anchor head, a space for supporting the pipe is formed between the lower wire rope and the arc-shaped plate.

[0006] Specifically, a retaining ring is fixed to the end of the anchor head away from the fixed seat.

[0007] Specifically, the rotating component includes two triangular plates, which are symmetrically connected front to back and fixedly connected. The side ends of the triangular plates are rotatably connected to the arc plate, the upper ends of the triangular plates are connected to the suspension rope, and the two ends of the lower steel wire rope are respectively connected to the lower ends of the two triangular plates.

[0008] Specifically, two ear plates are fixed on the arc-shaped plate, and two triangular plates are rotatably connected to the two ear plates via pins.

[0009] Specifically, the end of the lower wire rope is connected to the lower end of the triangular plate via a lower connecting ring.

[0010] Specifically, the end of the lower wire rope is fixedly connected to the lower connecting ring, and the lower connecting ring is rotatably connected to the lower end of the triangular plate.

[0011] Specifically, the upper end of the triangular plate is connected to the suspension rope via an upper connecting ring, the upper end of the fixed base is connected to the suspension rope via an upper connecting ring, the upper connecting ring on one side of the triangular plate is rotatably connected to the upper end of the triangular plate, and the upper connecting ring on one side of the fixed base is rotatably connected to the upper end of the fixed base.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through the anchor head and lower wire rope attachment design, the lower wire rope only needs to be attached to the anchor head once to complete the fixation, eliminating the need for repeated adjustments of multiple rope loops. During lifting, the rotating component automatically rotates under the lifting traction force and tightens the lower wire rope, forming a self-locking mechanism, which significantly improves operational efficiency.

[0013] 2. The retaining ring at the end of the anchor head prevents the lower wire rope from slipping accidentally during hoisting. During hoisting, the rotation of the rotating parts causes the lower wire rope to tighten automatically, and the clamping force increases synchronously with the increase of load, resulting in high pipeline stability and reducing the risk of slippage.

[0014] 3. The symmetrical triangular plate rotates via ear plates and pins, ensuring uniform and synchronous force distribution on both sides. The upper and lower connecting rings reduce wear on the lower wire rope and suspension rope, extending their service life.

[0015] 4. The arc-shaped plate and the lower wire rope form a ring-shaped wrapping structure, avoiding direct contact between the traditional hook and the pipe opening, thus preventing damage to the bevel. The flexible design of the lower wire rope can adapt to pipes of different diameters, making it widely applicable.

[0016] 5. The curved plate is closely attached to the pipeline, which can further improve the stability of the pipeline during the hoisting process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lifting clamp used to lift pipelines.

[0018] Figure 2 This is a side view of the lifting clamp used to lift pipelines.

[0019] Figure 3 This is a front view of the lifting clamp used to lift pipelines.

[0020] The components in the attached diagram are named as follows: 1. Arc plate, 2. Ear plate, 3. Triangular plate, 4. Fixing seat, 5. Anchor head, 6. Retaining ring, 7. Lower wire rope, 8. Lifting rope, 9. Lower connecting ring, 10. Upper connecting ring, 11. Pipe, 12. Pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1: Refer to Figures 1-3 As shown, a self-locking steel pipe hoisting clamp includes an arc-shaped plate 1. The arc-shaped plate 1 is characterized by having a fixed seat 4 fixed on one side, an anchor head 5 fixed on the fixed seat 4, and a retaining ring 6 fixed at the end of the anchor head 5 away from the fixed seat 4.

[0023] A rotating component is rotatably connected to the other side of the arc plate 1. The lower end of the rotating component is connected to both ends of the lower wire rope 7. After the lower wire rope 7 is hung on the anchor head 5, a space for the bearing pipe 11 is formed between the lower wire rope 7 and the arc plate 1.

[0024] Two suspension ropes 8 are connected to the upper end of the rotating part and the upper end of the fixed base 4.

[0025] The rotating component includes two triangular plates 3, which are symmetrically connected front to back. The side ends of the triangular plates 3 are rotatably connected to the arc-shaped plate 1, and the upper ends of the triangular plates 3 are connected to the suspension rope 8. The two ends of the lower steel wire rope 7 are respectively connected to the lower ends of the two triangular plates 3. Two ear plates 2 are fixed on the arc-shaped plate 1, and the two triangular plates 3 are rotatably connected to the two ear plates 2 through the pin 12.

[0026] When it is necessary to hoist the pipe 11, the arc plate 1 covers the upper end of the pipe 11, and the lower wire rope 7 is wrapped around the lower end of the pipe 11 and hung on the anchor head 5. The retaining ring 6 can prevent the lower wire rope 7 from separating from the anchor head 5. At this time, the pipe 11 is located between the lower wire rope 7 and the arc plate 1.

[0027] The lifting rope 8 is connected to the hook. When the hook lifts, the lifting traction force causes the rotating component on one side of the ear plate 2 to rotate. After the rotating component rotates, it can tighten the lower wire rope 7. After the lower wire rope 7 is tightened, it can clamp the pipe 11 with the arc plate 1. During hoisting, the rotation of the rotating component causes the lower wire rope 7 to tighten automatically. As the load increases, the clamping force increases synchronously, resulting in high stability of the pipe 11 and reducing the risk of slippage. The lever structure of the triangular plate 3 converts the tension of the lifting rope 8 into the pull on the lower wire rope 7, forming a "tightening" mechanical feedback.

[0028] After the pipe 11 is lifted off the ground, the rotating part rotates further under the action of gravity torque, and the tension of the lower wire rope 7 increases exponentially, forming a closed-loop locking force together with the arc plate 1.

[0029] Example 2: Based on Example 1, referring to... Figures 1-3As shown, the end of the lower wire rope 7 is connected to the lower end of the triangular plate 3 via the lower connecting ring 9. The end of the lower wire rope 7 is fixedly connected to the lower connecting ring 9, and the lower connecting ring 9 is rotatably connected to the lower end of the triangular plate 3.

[0030] The upper end of the triangle plate 3 is connected to the suspension rope 8 via the upper connecting ring 10, and the upper end of the fixed seat 4 is connected to the suspension rope 8 via the upper connecting ring 10. The upper connecting ring 10 on one side of the triangle plate 3 is rotatably connected to the upper end of the triangle plate 3, and the upper connecting ring 10 on one side of the fixed seat 4 is rotatably connected to the upper end of the fixed seat 4.

[0031] By setting the lower connecting ring 9 and the upper connecting ring 10, the wear of the lower wire rope 7 and the suspension rope 8 can be reduced.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking steel pipe hoisting clamp, comprising an arc-shaped plate (1), characterized in that, A fixed seat (4) is fixed on one side of the arc plate (1), and an anchor head (5) is fixed on the fixed seat (4). A rotating part is rotatably connected to the other side of the arc plate (1). Two suspension ropes (8) are connected to the upper end of the rotating part and the upper end of the fixed seat (4). The lower end of the rotating part is connected to both ends of the lower wire rope (7). After the lower wire rope (7) is hung on the anchor head (5), a space for a bearing pipe (11) is formed between the lower wire rope (7) and the arc plate (1).

2. The self-locking steel pipe hoisting clamp according to claim 1, characterized in that, The anchor head (5) is fixed with a retaining ring (6) at the end away from the fixed seat (4).

3. The self-locking steel pipe hoisting clamp according to claim 1, characterized in that, The rotating component includes two triangular plates (3), which are symmetrically connected front and back. The side ends of the triangular plates (3) are rotatably connected to the arc plate (1). The upper end of the triangular plates (3) is connected to the suspension rope (8), and the two ends of the lower wire rope (7) are respectively connected to the lower ends of the two triangular plates (3).

4. The self-locking steel pipe hoisting clamp according to claim 3, characterized in that, Two ear plates (2) are fixed on the arc plate (1), and two triangular plates (3) are rotatably connected to the two ear plates (2) by a pin (12).

5. The self-locking steel pipe hoisting clamp according to claim 3, characterized in that, The end of the lower wire rope (7) is connected to the lower end of the triangular plate (3) through the lower connecting ring (9).

6. The self-locking steel pipe hoisting clamp according to claim 5, characterized in that, The end of the lower wire rope (7) is fixedly connected to the lower connecting ring (9), and the lower connecting ring (9) is rotatably connected to the lower end of the triangular plate (3).

7. The self-locking steel pipe hoisting clamp according to claim 3, characterized in that, The upper end of the triangular plate (3) is connected to the suspension rope (8) through the upper connecting ring (10), the upper end of the fixed seat (4) is connected to the suspension rope (8) through the upper connecting ring (10), the upper connecting ring (10) on one side of the triangular plate (3) is rotatably connected to the upper end of the triangular plate (3), and the upper connecting ring (10) on one side of the fixed seat (4) is rotatably connected to the upper end of the fixed seat (4).

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