Safety mother rope device for construction of steel trestle deck structure

Abstract

The utility model discloses a steel trestle deck structure construction safety mother rope device which comprises two supporting mechanisms, a take-up and pay-off mechanism arranged on one of the supporting mechanisms, a loosening mechanism arranged on the supporting mechanism where the take-up and pay-off mechanism is located, and a limiting mechanism arranged on the supporting mechanism where the take-up and pay-off mechanism is located. The limiting mechanism is arranged on the other supporting mechanism, and the steel wire rope is connected with the take-up and pay-off mechanism, the loosening mechanism and the limiting mechanism. According to the safety mother rope device for construction of the steel trestle deck structure, an overhead safety mother rope is formed, when a worker works, a safety belt is hung on the steel wire rope, it is ensured that falling accidents do not occur when the worker steps on the steel wire rope, the device can be disassembled and assembled according to the site construction progress, the working span can be adjusted according to winding and unwinding of the steel wire rope, disassembly and assembly are convenient, and the working span is convenient to adjust; the tool is high in safety, when a worker works, a safety belt is hung on a steel wire rope, and the falling accident can be effectively avoided when the worker misses the step.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a safety mother rope device for steel trestle bridge deck structure construction. Background Art

[0002] Steel trestles are temporary structures that serve bridge construction projects. In the construction of large and medium-sized offshore bridges, temporary trestles are often needed to facilitate the transportation of materials, equipment, and personnel. The most common steel trestles at this stage are: steel sheet piles, top horizontal and longitudinal distribution beams, steel bridge panels, and edge guardrails.

[0003] With the rapid development of my country's infrastructure, the proportion of steel trestle projects involved in water operations has gradually increased. However, during the construction of the existing steel trestle deck structure, the safety rope is simply installed in the form of a tie, which is difficult to play a good protective role. It is dangerous when working at high altitudes, and the effective safety measures are low. It is easy to step on air and fall during the operation process. Therefore, it is urgent to develop a safety mother rope device to effectively avoid the occurrence of such accidents. Utility Model Content

[0004] The utility model aims to provide a safety mother rope device for the construction of a steel trestle bridge deck structure, so as to solve the problems of low effective safety measures and high danger in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a safety mother rope device for steel trestle bridge deck structure construction, comprising:

[0006] Two support mechanisms;

[0007] A wire-retracting and -releasing mechanism, which is arranged on one of the supporting mechanisms;

[0008] A release mechanism, which is arranged on the support mechanism where the wire-retracting and -releasing mechanism is located;

[0009] a limiting mechanism, the limiting mechanism being arranged on another supporting mechanism, and

[0010] The steel wire rope is connected with the wire-retracting and -releasing mechanism, the releasing mechanism and the limiting mechanism.

[0011] Preferably, the supporting mechanism comprises square steel, one of which is provided with a reserved hole for a capstan bolt, and the other of which is provided with a reserved hole for passing a wire rope near the top.

[0012] Preferably, the wire-retracting and -releasing mechanism comprises a capstan with a limit position, and the capstan with a limit position is bolted to the square steel through a reserved hole for capstan bolts.

[0013] Preferably, the release mechanism comprises a pulley, the pulley is fixedly connected to the square steel where the belt limiting winch is located, and the pulley is located above the belt limiting winch.

[0014] Preferably, the limiting mechanism comprises a shackle, and the shackle is fixedly mounted on a square steel on which the pulley is not mounted.

[0015] Preferably, the steel wire rope is connected with a limit winch, a pulley and a shackle, and the steel wire rope passes through a reserved hole for the steel wire rope.

[0016] Preferably, a base is fixedly mounted on each of the two square steel bottoms.

[0017] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0018] The steel trestle bridge deck structure construction safety mother rope device is provided with a wire-retracting mechanism and a release mechanism on one of the supporting mechanisms, and a limit mechanism is provided on the other supporting mechanism. The steel wire rope is connected with the wire-retracting mechanism, the release mechanism and the limit mechanism to form an overhead safety mother rope. When the workers are working, they hang the safety belt on the steel wire rope to ensure that the workers do not fall when they step on empty space. The device can be disassembled and assembled according to the progress of the on-site construction, and the working span can be adjusted according to the wire rope retraction and release. The device is convenient to disassemble and adjust the working span. The tooling uses a rigid structure except for the steel strand, and the tooling itself has high safety. When the workers are working, they hang the safety belt on the steel wire rope, which can effectively avoid falling accidents when they step on empty space. This solves the problem that the safety rope is simply installed in the form of tying and hanging during the existing steel trestle bridge deck structure construction process, which is difficult to play a good protective role, is dangerous when working at high altitude, has low effective safety protection measures, and is easy to step on empty space and cause falling accidents during the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the overall structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a top view of the overall structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the separation of various components of the utility model.

[0023] In the figure: 1. Support mechanism; 11. Square steel; 2. Wire-retracting and -releasing mechanism; 21. Capstan with limiter; 3. Release mechanism; 31. Pulley; 4. Limiting mechanism; 41. Shackle; 5. Wire rope; 6. Reserved hole for capstan bolt; 7. Reserved hole for wire rope; 8. Base. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 4 As shown, a safety mother rope device for steel trestle bridge deck structure construction comprises two supporting mechanisms 1, a wire-retracting mechanism 2, a releasing mechanism 3, a limiting mechanism 4 and a steel wire rope 5. The wire-retracting mechanism 2 is arranged on one of the supporting mechanisms 1, the releasing mechanism 3 is arranged on the supporting mechanism 1 where the wire-retracting mechanism 2 is located, and the limiting mechanism 4 is arranged on the other supporting mechanism 1. The steel wire rope 5 is connected with the wire-retracting mechanism 2, the releasing mechanism 3 and the limiting mechanism 4 to form an overhead safety mother rope. When workers are working, they hang their safety belts on the steel wire rope 5 to ensure that workers do not fall when they step on empty space. The device can be disassembled and assembled according to the progress of on-site construction, and the working span can be adjusted according to the retraction and release of the steel wire rope 5. It is convenient to disassemble and adjust the working span. Except for the steel strand, the tooling uses a rigid structure, and the tooling itself has high safety. When workers are working, they hang their safety belts on the steel wire rope 5 to effectively avoid falling when they step on empty space.

[0026] like Figure 1-Figure 4 As shown, the support mechanism 1 includes square steel 11, one of the square steel 11 is provided with a capstan bolt reserved hole 6, and the other square steel 11 is provided with a wire rope reserved hole 7 near the top. The wire-retracting mechanism 2 includes a belt-limiting capstan 21, and the belt-limiting capstan 21 is bolted to the square steel 11 through the capstan bolt reserved hole 6. The release mechanism 3 includes a pulley 31, and the pulley 31 is fixedly connected to the square steel 11 where the belt-limiting capstan 21 is located. The pulley 31 is welded to the square steel 11 above the pulley 31, and the pulley 31 is located above the belt-limiting capstan 21. The limiting mechanism 4 includes a shackle 41, and the shackle 41 is fixedly installed on the un On a square steel 11 on which a pulley 31 is installed, a steel wire rope 5 is connected to a limit winch 21, a pulley 31 and a shackle 41, and the steel wire rope 5 passes through a reserved hole 7 for the steel wire rope. A base 8 is fixedly installed at the bottom of each of the two square steels 11. The base 8 is formed by welding a steel plate and an original plate. The base 8 is welded to the square steel 11. The round steel pins of the base 8 are respectively inserted into the reserved holes of the Bailey plate and the strong chord rod to tighten the steel wire rope 5. The purpose is to prevent the steel wire rope 5 from loosening by using the limit winch 21 to form an overhead safety mother rope. When workers are working, they hang the safety belt on the steel wire rope 5 to ensure that no falling accidents occur when workers step on empty air.

[0027] Specifically, the wire rope 5 slides on the wheel surface of the pulley 31, and the capstan 21 with a limit is bolted and fixed on the square steel 11 through the reserved hole 6 for the capstan bolt to form a hanging line, which plays the role of winding and releasing the line. The wire rope 5 passes through the reserved hole 7 for the wire rope and is fixed and limited by the shackle 41. When the wire rope 5 does not need to be wound up and released, the shackle 41 can limit the wire rope 5, and the shackle 41 can also release the limit on the wire rope 5, allowing the wire rope 5 to continue to be released.

[0028] In the specific implementation process, two square steels 11 of appropriate length are cut, and the reserved holes 7 for passing the wire rope and the reserved holes 6 for the capstan bolts are punched on the square steels 11 according to the positions that meet the actual operation requirements on site. The pulley 31 and the square steel 11 are fixed to the top of the square steel 11 by welding. The base 8 is composed of a steel plate that meets the force requirements, a round steel that meets the force requirements, and a stiffening triangular steel plate. The size of the steel plate is 5 cm wider than the size of the square steel 11 on each side. According to the size of the round steel, a hole is punched in the center of the steel plate, and the round steel is inserted into the steel plate and welded. The exposed bottom length of the round steel plate is 15 cm. The triangular stiffening plate is welded and fixed to the round steel and the steel plate along the plane axis of the steel plate. After the base 8 is processed, it is welded and fixed to the square steel 11. The limited winch 21 is fixed to one of the square steels 11 in a bolted manner through the reserved hole 6 for the winch bolt. A steel wire rope 5 of appropriate length is cut, one end of which is fixed to the limited winch 21 through the pulley 31, and the other end passes through the reserved hole 7 for the steel wire rope to pass through the outside of the square steel 11, and is limited and fixed with a shackle 41.

[0029] After the processed and manufactured device is transported to the site, the rod with a limiting winch 21 that has the function of collecting and releasing the steel wire rope is installed manually: the round steel pin of the base 8 is inserted into the reserved hole of the strong chord rod, and then the limiting winch 21 is rotated to release the steel wire rope 5. Another square steel 11 is installed according to the above method, the limiting winch 21 is rotated, the steel wire rope 5 is tightened, and the safety belt is hung on the steel wire rope 5. The installation and use of the safety mother rope device for the steel trestle bridge deck structure construction are completed.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety mother rope device for steel trestle bridge deck structure construction, characterized in that: include: Two supporting mechanisms (1); A wire-retracting and -releasing mechanism (2), wherein the wire-retracting and -releasing mechanism (2) is arranged on one of the supporting mechanisms (1); A relaxing mechanism (3), the relaxing mechanism (3) being arranged on the supporting mechanism (1) where the wire-reeling and -releasing mechanism (2) is located; a limiting mechanism (4), the limiting mechanism (4) being arranged on another supporting mechanism (1), and A steel wire rope (5) is connected to the wire-retracting and -releasing mechanism (2), the releasing mechanism (3) and the limiting mechanism (4).

2. A safety mother rope device for steel trestle bridge deck structure construction according to claim 1, characterized in that: The support mechanism (1) comprises square steel (11), one of the square steels (11) is provided with a reserved hole (6) for a capstan bolt, and the other square steel (11) is provided with a reserved hole (7) for passing a wire rope near the top.

3. A safety mother rope device for steel trestle bridge deck structure construction according to claim 2, characterized in that: The wire-retracting and unwinding mechanism (2) comprises a capstan with a limit position (21), and the capstan with a limit position (21) is bolted to the square steel (11) via a reserved capstan bolt hole (6).

4. A safety mother rope device for steel trestle bridge deck structure construction according to claim 3, characterized in that: The release mechanism (3) comprises a pulley (31), wherein the pulley (31) is fixedly connected to the square steel (11) where the position-limiting capstan (21) is located, and the pulley (31) is located above the position-limiting capstan (21).

5. A safety mother rope device for steel trestle bridge deck structure construction according to claim 4, characterized in that: The limiting mechanism (4) comprises a shackle (41), and the shackle (41) is fixedly mounted on a square steel (11) on which the pulley (31) is not mounted.

6. A safety mother rope device for steel trestle bridge deck structure construction according to claim 1, characterized in that: The steel wire rope (5) is connected with a limit winch (21), a pulley (31) and a shackle (41), and the steel wire rope (5) passes through a steel wire rope reserved hole (7).

7. A safety mother rope device for steel trestle bridge deck structure construction according to claim 2, characterized in that: A base (8) is fixedly mounted on the bottom of each of the two square steels (11).

Images