Pulley hook device

Abstract

The utility model discloses a pulley hook device which comprises a hook body, connecting seats are arranged on the two sides of the bottom end of the hook body, the connecting seats are rotationally connected with two arc-shaped clamping plates which are arranged in a staggered mode, the other end of one arc-shaped clamping plate is rotationally connected with a connecting plate, and the other end of the other arc-shaped clamping plate is rotationally connected with a connecting rod. A threaded seat is arranged on the outer wall of the moving plate, a threaded rod is in threaded fit with the inner wall of the threaded seat, one end of the threaded rod is rotationally connected with the connecting plate, a rotating plate is rotationally connected to one side of the top end of the hook body, and a fixed pulley is rotationally connected to the outer wall of one side of the rotating plate; and the other end of the fixed pulley is rotationally connected with a fixed plate. According to the device, through the arrangement of the connecting base, the arc-shaped clamping plate, the connecting plate, the movable plate, the screw rod and the threaded base, a main rope can be clamped and fixed by rotating the screw rod, and the tedious operation that the main rope and a hook are bound through a rope is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridge construction, in particular to a pulley hook device. Background Art

[0002] A cable bridge is a bridge erected by laying a bridge deck on a row of cables anchored on both banks of a river or valley. It is mainly used to overcome mountain rivers and canyon obstacles, and can also be used in other river sections where it is not suitable to erect floating bridges or fixed bridges. The main cables usually use steel wires, and each bridge has a dozen to dozens of them, arranged longitudinally evenly or in a rutted pattern. Among them, the main cable crossing the river is the key and difficult point in the construction process.

[0003] At present, the traditional transportation method of the steel wire main cable mainly uses ships for transportation. It mainly consists of a main cable (including a cable end length adjustment and connection device), a bridge deck surface layer, a wind resistance system, lighting and warning equipment, etc. The bridge deck load-bearing cable is composed of 30 twisted steel wires with a diameter of 52. The early construction period is relatively long and the cost is relatively high. The transportation of the steel wire main cable across the river mainly uses ships, the mechanical availability is relatively low, the transportation efficiency is relatively low, and the labor intensity of workers is relatively high.

[0004] In order to solve the above problems, after retrieval, a patent with the Chinese patent publication number CN207535895U discloses a pulley hook device and a pulley hook group for transporting steel cables of a long-span cable bridge, including a hook body, a fixed pulley and a fixing component; the hook body includes a first end and a second end arranged oppositely, a hook is arranged at the first end, and an installation groove for installing the fixed pulley is arranged at the second end; the fixed pulley can be fixed in the installation groove through the fixing component; the installation groove has a surplus space for the load-bearing cable to pass through; the circumferential direction of the fixed pulley has a groove for cooperating with the load-bearing cable.

[0005] When transporting the main cable, it is necessary to fix the main cable to the hook. However, this patent can only fix the main cable to the hook by bundling. The bundling operation is relatively cumbersome, and the stability of the bundling fixation is affected by the operation of the operator, which is difficult to standardize, and the main cable may fall off during transportation. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a pulley hook device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A pulley hook device, comprising a hook body, wherein two connecting seats are arranged on both sides of the bottom end of the hook body, and two arc-shaped clamping plates which are arranged in an interlaced manner are rotatably connected to the connecting seats. One end of the other arc-shaped clamping plate is rotatably connected to a connecting plate, and the other arc-shaped clamping plate is rotatably connected to a moving plate. A threaded seat is arranged on the outer wall of the moving plate, and a screw rod is in threaded fit with the inner wall of the threaded seat. One end of the screw rod is rotatably connected to the connecting plate.

[0009] As a further scheme of the utility model: the hook body is Y-shaped, and a U-shaped clamp is connected to the outer wall of one side of the hook body.

[0010] As a further scheme of the utility model: a rotating plate is rotatably connected to one side of the top end of the hook body, a fixed pulley is rotatably connected to the outer wall of one side of the rotating plate, and a fixing plate is rotatably connected to the other end of the fixed pulley.

[0011] As a further scheme of the utility model: a connecting block is arranged on the outer wall of the bottom end of the fixing plate, a cavity is formed on one side of the hook body, and a plug rod is slidably connected to the inner wall of the cavity.

[0012] As a further scheme of the utility model: the plug rod is inserted into the connecting block, and a push plate is connected to the outer wall of one side of the plug rod.

[0013] As a further scheme of the utility model: a sliding groove which is slidably matched with the push plate is formed on the outer wall of the hook body.

[0014] As a further scheme of the utility model: friction protrusions are arranged on the inner walls of the arc-shaped clamping plates.

[0015] As a further scheme of the utility model: a protective cover is arranged on the outer walls of the opposite sides of the rotating plate and the fixing plate, and the protective cover is rotatably connected to the fixed pulley.

[0016] Compared with the prior art, the utility model provides a pulley hook device, which has the following beneficial effects:

[0017] 1. In the utility model, by arranging the connecting seat, the arc-shaped clamping plate, the connecting plate, the moving plate, the screw rod and the threaded seat, the main cable can be clamped and fixed by rotating the screw rod, avoiding the cumbersome operation of binding the main cable and the hook with a rope.

[0018] 2. In the utility model, by arranging the rotating plate, the fixing plate, the cavity, the plug rod, the connecting block and the spring, the fixed pulley and the hook body can be connected to form a whole, avoiding the loss of components.

[0019] 3. In the utility model, by arranging the protective cover, the connection part between the fixed pulley and the rotating shaft can be sealed, avoiding sand and gravel from entering and causing the fixed pulley to rotate and jam.

[0020] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. The structure of this utility model is simple and the operation is convenient. Description of the Drawings

[0021] Figure 1 Fig. is a schematic diagram of the overall structure of a pulley hook device proposed by this utility model;

[0022] Figure 2 Fig. is a schematic diagram of the side structure of a pulley hook device proposed by this utility model;

[0023] Figure 3 Fig. is a schematic diagram of the connection structure between the connecting plate and the hook body of a pulley hook device proposed by this utility model;

[0024] Figure 4 Fig. is a schematic diagram of the partial structure at the arc-shaped clamping plate of a pulley hook device proposed by this utility model;

[0025] Figure 5 Fig. is a schematic diagram of the connection structure between the protective cover and the fixed pulley of a pulley hook device proposed by this utility model.

[0026] In the figure: 1, hook body; 2, U-shaped clamp; 3, rotating plate; 4, fixed pulley; 5, fixing plate; 6, cavity; 7, insertion rod; 8, connecting block; 9, spring; 10, connecting seat; 11, arc-shaped clamping plate; 12, friction protrusion; 13, connecting plate; 14, moving plate; 15, screw; 16, threaded seat; 17, sliding groove; 18, protective cover. Detailed Implementation Modes

[0027] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments.

[0028] In the description of this utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this utility model.

[0029] Embodiment 1

[0030] A pulley hook device, as Figures 1 to 4As shown in the figure, it includes a hook body 1. The hook body 1 is Y-shaped. One outer wall of the hook body 1 is connected with a U-shaped clamp 2. One side of the top end of the hook body 1 is rotatably connected with a rotating plate 3. One outer wall of the rotating plate 3 is rotatably connected with a fixed pulley 4. The other end of the fixed pulley 4 is rotatably connected with a fixed plate 5. A connecting block 8 is arranged on the bottom outer wall of the fixed plate 5. A cavity 6 is opened on one side of the hook body 1. A plug rod 7 is slidably connected to the inner wall of the cavity 6. The plug rod 7 is inserted into the connecting block 8. A push plate is connected to one outer wall of the plug rod 7. A sliding groove 17 that slidably cooperates with the push plate is opened on the outer wall of the hook body 1. Connecting seats 10 are arranged on both sides of the bottom end of the hook body 1. Two arc-shaped clamping plates 11 that are arranged in a staggered manner are rotatably connected to the connecting seats 10. The other end of one of the arc-shaped clamping plates 11 is rotatably connected with a connecting plate 13. The other arc-shaped clamping plate 11 is rotatably connected with a moving plate 14. A threaded seat 16 is arranged on the outer wall of the moving plate 14. A screw rod 15 is in threaded cooperation with the inner wall of the threaded seat 16. One end of the screw rod 15 is rotatably connected with the connecting plate 13. Friction protrusions 12 are arranged on the inner walls of the arc-shaped clamping plates 11.

[0031] When transporting the main cable, the pilot cable uses a ship to pull the hemp rope from one side of the river to the other side. Then, workers fix the hemp rope to the winch. The traction cable is wound into the winch by the winch. The remaining rope end and the nylon rope are manually pulled to the other side through a wire clip. After pulling across the entire bridge span, the rope end of the traction cable is fixed to the towing cable, towed to the other side, and then the towing cable is fixed to both banks. The traction cable is wound onto the winch. Then, rotate the rotating plate 3 to open the closure at the top end of the hook body 1 by the fixed pulley 4, so that the towing cable enters between the hook body 1 and the fixed pulley 4. Rotate the rotating plate 3 in the reverse direction to make the fixed pulley 4 cooperate with the towing cable, so that the hook body 1 can move in the extending direction of the towing cable with the towing cable as a support. Fix the position of the fixed pulley 4 by inserting the plug rod 7 into the connecting block 8. Then, rotate the screw rod 15 to make the connecting plate 13 and the moving plate 14 move towards each other, so that the two arc-shaped clamping plates 11 move away from each other. Insert the main cable between the two arc-shaped clamping plates 11. Then, reverse the screw rod 15 to make the connecting plate 13 and the moving plate 14 move away from each other, and the two arc-shaped clamping plates 11 move relatively to clamp the main cable. The friction protrusions 12 increase the friction between the arc-shaped clamping plates 11 and the main cable. The traction cable is connected to the U-shaped clamp 2, and the hook body 1 is dragged along the towing cable by the traction cable to transport the first main cable to the other side of the bank. Then, remove the towing cable, and use the first main cable that has crossed the river as the towing cable for subsequent cable crossing. Repeat the above process until all main cables have completed the cable crossing.

[0032] By setting the connecting seats 10, arc-shaped clamping plates 11, connecting plate 13, moving plate 14, screw rod 15 and threaded seat 16, rotating the screw rod 15 can clamp and fix the main cable, avoiding the cumbersome operation of binding the main cable to the hook with a rope.

[0033] By setting the rotating plate 3, fixed plate 5, cavity 6, insertion rod 7, connecting block 8 and spring 9, the fixed pulley 4 can be connected to the hook body 1 to form a whole, avoiding the loss of components.

[0034] Embodiment 2

[0035] A pulley hook device, based on Embodiment 1, makes the following improvements. As Figure 5 shown, a protective cover 18 is provided on the outer walls of the opposite sides of the rotating plate 3 and the fixed plate 5, and the protective cover 18 is rotatably connected to the fixed pulley 4.

[0036] The protective cover 18 can enclose the connection between the fixed pulley 4 and the rotating shaft, preventing sand and gravel from entering and causing the fixed pulley 4 to rotate and jam.

[0037] By setting the protective cover 18, the connection between the fixed pulley 4 and the rotating shaft can be enclosed, preventing sand and gravel from entering and causing the fixed pulley 4 to rotate and jam.

[0038] Working principle: When transporting the main cable, the pilot cable pulls the hemp rope from the river surface to the opposite bank through a ship, and then the hemp rope is fixed to the winch manually. The traction cable is wound into the winch through the winch traction. The remaining rope end and the nylon rope are pulled to the opposite bank manually through the rope clamp. After pulling across the entire bridge span, the traction cable rope end is fixed to the towing cable and towed to the opposite bank, and then the towing cable is fixed to both banks. The traction cable is wound onto the winch; then rotate the rotating plate 3 to open the closure at the top of the hook body 1 by the fixed pulley 4, so that the towing cable enters between the hook body 1 and the fixed pulley 4. Rotate the rotating plate 3 in the reverse direction to make the fixed pulley 4 cooperate with the towing cable, so that the hook body 1 can move along the extension direction of the towing cable with the towing cable as a support. Fix the position of the fixed pulley 4 by inserting the insertion rod 7 into the connecting block 8, and then rotate the screw rod 15 to make the connecting plate 13 and the moving plate 14 move towards each other, so that the two arc-shaped clamping plates 11 move away from each other. Insert the main cable between the two arc-shaped clamping plates 11, and then reverse the screw rod 15 to make the connecting plate 13 and the moving plate 14 move away from each other, and the two arc-shaped clamping plates 11 move relatively to clamp the main cable. The friction protrusions 12 increase the friction between the arc-shaped clamping plates 11 and the main cable. The traction cable is connected to the U-shaped clamp 2, and the hook body 1 is dragged along the towing cable by the traction cable to transport the first main cable to the other side of the bank. Then remove the towing cable, and use the first main cable that has crossed the river as the towing cable for subsequent cable crossing. Repeat the above process until all the main cables have crossed the river; the protective cover 18 can enclose the connection between the fixed pulley 4 and the rotating shaft, preventing sand and gravel from entering and causing the fixed pulley 4 to rotate and jam.

[0039] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A pulley hook device, comprising a hook body (1), characterized in that: A connecting seat (10) is provided on both sides of the bottom end of the hook body (1), and the connecting seat (10) is rotatably connected to two arc-shaped clamping plates (11) arranged alternately with each other, wherein the other end of one of the arc-shaped clamping plates (11) is rotatably connected to a connecting plate (13), and the other arc-shaped clamping plate (11) is rotatably connected to a movable plate (14), and a threaded seat (16) is provided on the outer wall of the movable plate (14), and a screw rod (15) is threadedly matched on the inner wall of the threaded seat (16), and one end of the screw rod (15) is rotatably connected to the connecting plate (13).

2. A pulley hook device according to claim 1, characterized in that: The hook body (1) is Y-shaped, and a U-shaped clip (2) is connected to an outer wall on one side of the hook body (1).

3. A pulley hook device according to claim 1, characterized in that: One side of the top end of the hook body (1) is rotatably connected to a rotating plate (3), one side outer wall of the rotating plate (3) is rotatably connected to a fixed pulley (4), and the other end of the fixed pulley (4) is rotatably connected to a fixed plate (5).

4. A pulley hook device according to claim 3, characterized in that: A connecting block (8) is provided on the outer wall of the bottom end of the fixing plate (5), a cavity (6) is provided on one side of the hook body (1), and an insert rod (7) is slidably connected to the inner wall of the cavity (6).

5. A pulley hook device according to claim 4, characterized in that: The insertion rod (7) is plugged into the connection block (8), and an outer wall on one side of the insertion rod (7) is connected to a push plate.

6. A pulley hook device according to claim 3, characterized in that: The outer wall of the hook body (1) is provided with a sliding groove (17) which is slidably matched with the push plate.

7. A pulley hook device according to claim 1, characterized in that: The inner walls of the arc-shaped clamping plates (11) are each provided with friction protrusions (12).

8. A pulley hook device according to claim 3, characterized in that: A protective cover (18) is provided on the outer wall of one side opposite to the rotating plate (3) and the fixed plate (5), and the protective cover (18) is rotatably connected to the fixed pulley (4).

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