Assembly type subway station rail top air duct separation type assembly operation equipment

Abstract

The utility model relates to the technical field of rail traffic construction, and discloses assembly type subway station rail top air duct separation type assembly operation equipment which comprises two sets of supporting frames, a force transmission platform is arranged between the two sets of supporting frames, a steel wire rope is arranged above the supporting frames, a chain block is arranged on the steel wire rope, and the steel wire rope is connected with the chain block. A lifting device is changed from the lower portion of the middle plate to the upper portion of the middle plate, the middle plate lower operation platform and the middle plate upper lifting device are matched with each other to complete splicing of an air duct, precision control of the lower portion and lifting control of the upper portion, and the lifting device is arranged on the middle plate. And therefore, the assembly efficiency and the assembly precision are improved.

Description

Technical Field

[0001] This utility model relates to the field of rail transit construction technology, specifically to a prefabricated subway station track top ventilation duct separation assembly operation equipment. Background Technology

[0002] With the acceleration of urbanization, subways, as an efficient and convenient mode of public transportation, occupy an increasingly important position in urban transportation systems. During the construction of subway stations, the track-top ventilation duct, as a key component of the station's ventilation and smoke extraction systems, directly impacts the smooth progress of the entire subway project. Currently, traditional track-top ventilation duct construction often uses curved cast-in-place slab equipment. This construction method has several drawbacks. First, due to the limitations of the internal space structure of subway stations, it is difficult to deploy the outriggers for construction. The inability to effectively deploy the outriggers not only affects the stability of the equipment but also slows down the construction progress, increasing construction time costs. Second, when the ventilation duct is too close to the main side wall, the installation of the curved cast-in-place slab equipment becomes extremely difficult. The confined space makes it difficult to accurately position the equipment, significantly increasing the difficulty of construction operations and posing higher safety risks. It is difficult to guarantee the safety and accuracy of construction, and this installation difficulty may also cause equipment damage, further increasing construction costs. Furthermore, traditional cast-in-place construction methods suffer from complex construction processes, long construction cycles, and numerous on-site wet operations. These problems not only affect construction efficiency but may also pollute the construction environment, making it difficult to meet the requirements of modern green and efficient construction. Therefore, to solve these technical problems, it is urgent to develop a new type of construction equipment that can overcome the shortcomings of existing curved cast-in-place base slab equipment, in order to meet the requirements of subway station track top ventilation duct construction in terms of safety, efficiency, and environmental protection. This has also driven the research and development of prefabricated subway station track top ventilation duct separate assembly equipment. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a prefabricated subway station track top ventilation duct separation assembly operation equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated subway station track top ventilation duct separation assembly operation equipment, including a support frame, wherein two sets of support frames are provided, a force transmission platform is provided between the two sets of support frames, a steel wire rope is provided above the support frame, a hand-operated hoist is provided on the steel wire rope, and a lifting lug is connected to the end of the steel wire rope away from the hand-operated hoist, and the lifting lug is provided above the force transmission platform.

[0005] As a further description of the above technical solution:

[0006] A prefabricated rail top air duct is provided above the force transmission platform. Threaded sleeves are provided inside the four corners of the prefabricated rail top air duct. Screws are threaded into the threaded sleeves and fix the force transmission platform to the prefabricated rail top air duct.

[0007] As a further description of the above technical solution:

[0008] The support frame is rectangular at the bottom and triangular at the top.

[0009] As a further description of the above technical solution:

[0010] It includes a ventilation duct work platform, which is welded from square steel.

[0011] As a further description of the above technical solution:

[0012] The ventilation duct working platform is equipped with edge protection above it, and the ventilation duct working platform is equipped with support legs in the cross-sectional direction.

[0013] This utility model has the following beneficial effects:

[0014] 1. By adjusting the lifting equipment to the upper part of the middle plate and cooperating with the working platform under the middle plate, the lower part can control the accuracy and the upper part can control the lifting, effectively solving the problems of difficult assembly of components and poor positional accuracy, and significantly improving assembly efficiency and assembly accuracy.

[0015] 2. This equipment is safe and reliable, and easy to operate. It is highly flexible and greatly improves assembly accuracy and efficiency in complex environments such as narrow spaces and curved cast-in-place slabs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a prefabricated subway station track top ventilation duct separation assembly operation equipment proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the ventilation duct operation platform of a prefabricated subway station track top ventilation duct separation assembly operation equipment proposed in this utility model.

[0018] Legend:

[0019] 1. Hand-operated hoist; 2. Wire rope; 3. Force transmission platform; 4. Threaded sleeve; 5. Precast rail-top ventilation duct. Detailed Implementation

[0020] 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.

[0021] Example 1:

[0022] like Figure 1 As shown in the figure, the prefabricated subway station track top ventilation duct separation assembly operation equipment provided in this embodiment includes a support frame, two sets of support frames are provided, a force transmission platform 3 is provided between the two sets of support frames, a steel wire rope 2 is provided above the support frame, a hand chain hoist 1 is provided on the steel wire rope 2, and a lifting lug is connected to the end of the steel wire rope 2 away from the hand chain hoist 1. The lifting lug is located above the force transmission platform 3.

[0023] In this embodiment, the support frame is welded from square steel sections. The bottom rectangular frame has dimensions of 1500×1000×1200mm, and the upper triangular support has a height of 2.1m and is welded to the main beam. The main beam extends 100mm beyond the support. The force transmission platform 3 is welded from square steel sections. Its length is the same as the length of the air duct, which is 3300mm. Its width is the same as the spacing between the air duct connecting bolts, which is 900mm. The middle of the platform is reinforced with four square steel sections.

[0024] Specifically, a precast rail top air duct 5 is set above the force transmission platform 3. Threaded sleeves are set inside the four corners of the precast rail top air duct 5. Screws are connected to the threads inside the threaded sleeves. The screws fix the force transmission platform 3 to the precast rail top air duct 5.

[0025] In this embodiment, the force can be transferred from the hand-operated hoist 1 to the wire rope 2 through the lifting lugs on the force transmission platform, ensuring that the wire rope is used to vertically hoist the precast rail top air duct, and is suitable for assembly operations in complex environments such as narrow spaces and curved cast-in-place base slabs.

[0026] Specifically, the support frame is rectangular at the bottom and triangular at the top.

[0027] As a preferred implementation method, it can improve the stability and anti-overturning ability of the support frame, and meet the requirements for equipment safety in prefabricated construction.

[0028] Example 2:

[0029] Specifically, this includes the ventilation duct work platform, which is made of welded square steel.

[0030] It should be noted that the height of the ventilation duct operating platform is 4.2m, and the platform size is 5.2×2.2m; the spacing of the main steel sections in the platform cross section direction is 2.4m, with cantilevered sections of 1.7m and 1.1m on each side respectively; the spacing of the main steel sections along the station direction is 2.2m, without cantilever.

[0031] Specifically, the ventilation duct work platform is equipped with edge protection above it, and the ventilation duct work platform is equipped with outriggers in the cross-sectional direction.

[0032] In this embodiment, the edge protection height is 1.2m, which meets the requirements of construction safety specifications; the outrigger opening length is 1.1m, which increases the support base area to ensure the anti-overturning performance of the work platform.

[0033] This process is safe, reliable, and easy to operate, with highly flexible equipment. It greatly improves assembly accuracy and efficiency in complex environments such as confined spaces and curved cast-in-place slabs. Taking Yingpu Road Station as an example, the prefabricated construction method for the station's internal structure has met the requirements for construction accuracy, with the assembly accuracy controlled within 5mm, saving 11 days of construction time and increasing the assembly qualification rate to 93.4%.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 prefabricated subway station track top ventilation duct separation assembly operation equipment, characterized in that: The system includes a support frame, which is provided in two sets. A force transmission platform (3) is provided between the two sets of support frames. A wire rope (2) is provided above the support frame. A hand-operated hoist (1) is provided on the wire rope (2). A lifting lug is connected to the end of the wire rope (2) away from the hand-operated hoist (1). The lifting lug is provided above the force transmission platform (3).

2. The prefabricated subway station track top ventilation duct separation assembly equipment according to claim 1, characterized in that: A precast rail top air duct (5) is provided above the force transmission platform (3). Threaded sleeves are provided inside the four corners of the precast rail top air duct (5). Screws are threaded inside the threaded sleeves and the screws fix the force transmission platform (3) to the precast rail top air duct (5).

3. The prefabricated subway station track top ventilation duct separation assembly equipment according to claim 1, characterized in that: The support frame is rectangular at the bottom and triangular at the top.

4. The prefabricated subway station track top ventilation duct separation assembly equipment according to claim 1, characterized in that: It includes a ventilation duct work platform, which is welded from square steel.

5. The prefabricated subway station track top ventilation duct separation assembly equipment according to claim 4, characterized in that: The ventilation duct working platform is equipped with edge protection above it, and the ventilation duct working platform is equipped with support legs in the cross-sectional direction.

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