Hanging bracket

Abstract

The utility model provides a hanging bracket which comprises a supporting frame body supported on a constructed block section, one end of the supporting frame body extends out of the constructed block section, the other end of the supporting frame body is connected with the constructed block section through a moving mechanism, and the moving mechanism moves on the constructed block section. The supporting frame body is provided with a lifting structure sliding in the length direction of the supporting frame body. The fixing point of the traction piece is arranged on the moving mechanism, the position of the moving mechanism can be adjusted to achieve random adjustment of the fixing point of the hanging bracket, different hanging requirements are met, and the influence of limitation of the surrounding environment on the hanging bracket is reduced. Moreover, one end of the support frame body serves as a fixed end, and the other end serves as a lifting end, so that the whole lifting frame can achieve stress balance, and the stability of lifting operation is ensured.

Description

Technical Field

[0001] This application relates to the field of hanger technology, and more particularly to a hanger. Background Technology

[0002] During the construction of a cantilevered continuous box girder bridge, longitudinal prestressing tensioning needs to be performed in mid-air. The weight of the tensioning jacks is roughly equivalent to that of an adult, making transportation and installation extremely difficult. The number of tensioning steel strands in a single segment of a cantilevered continuous box girder is relatively large, mostly between 17 and 19 bundles, requiring a higher-specification tensioning jack, which also increases its weight. Previously, there were two installation methods for the jacks in this stage: the first was to fix the hand-operated hoist to a fixed point on the hanging basket or bridge deck, with manual labor for precise positioning and installation; the second was to use a tower crane for lifting, followed by manual labor for precise positioning and installation.

[0003] The traditional jack installation method described above has the following disadvantages:

[0004] (1) Fixed point installation with hand chain hoist: The fixed point is subject to many restrictions from the surrounding environment, and the hand chain hoist is prone to direct friction with the concrete body during construction.

[0005] (2) Tower crane installation: The tower crane is occupied for a long time, the mechanical cost is too high, the hook of the tower crane is too large for the gap between the scaffolding and the concrete, the operation is difficult and the lifting accident is easy to occur. Utility Model Content

[0006] The purpose of this application is to provide a lifting frame with an adjustable lifting anchor point to facilitate hoisting construction.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A gantry includes a support frame supported on a completed construction block, one end of the support frame extending beyond the completed construction block, and the other end connected to the completed construction block via a moving mechanism that moves on the completed construction block. The support frame is provided with a lifting structure that slides along its length.

[0009] Further configuration: The support frame is connected to the moving mechanism via a traction member, one end of which is fixed to the end of the support frame, and the other end is connected to the moving mechanism.

[0010] Further configuration: The moving mechanism includes a mobile trolley that moves on the completed construction blocks.

[0011] Further configuration: The support frame includes a main beam and at least two sets of skeletons for supporting the main beam. The skeletons are arranged along the length of the main beam, and both ends of the main beam extend outside the skeletons to form cantilever.

[0012] Further configuration: The skeleton is configured as an inverted U-shaped structure, and the main beam is connected to the top of the skeleton located below its centerline.

[0013] Further configuration: One end of the main beam serves as the lifting end, and the other end is provided with a fixing hole for connecting with the traction component.

[0014] Further configuration: The lifting structure includes a pulley trolley mounted on the main beam and sliding along the length of the main beam, and a hook mounted on the pulley trolley.

[0015] Further configuration: The hook is connected to a longitudinal tensioning jack.

[0016] Further configuration: Limiting blocks are provided at both ends of the main beam to prevent the pulley trolley from detaching from the main beam.

[0017] Compared with existing technologies, the solution in this application has the following advantages:

[0018] 1. The gantry crane involved in this application sets the fixed point of the traction component on the moving mechanism, and utilizes the adjustable position of the moving mechanism to achieve arbitrary adjustment of the fixed point of the gantry crane, adapting to different lifting needs and reducing the impact of the surrounding environment on the gantry crane. Furthermore, with one end of the support frame serving as the fixed end and the other end as the lifting end, the entire gantry crane can achieve force balance, ensuring the stability of the lifting operation.

[0019] 2. The gantry structure involved in this application is simple and easy to operate, which can significantly improve the construction efficiency of bridge segments, further shorten the segment construction cycle, and avoid the use of large lifting equipment such as tower cranes throughout the construction process, thereby reducing construction costs.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the hanger of this application;

[0023] Figure 2 This is a top view of the support frame in the hanger of this application;

[0024] Figure 3This is a side view of the support frame in the hanger of this application.

[0025] In the diagram, 1 is the support frame; 11 is the main beam; 111 is the fixing hole; 112 is the limiting block; 12 is the skeleton; 2 is the traction component; 3 is the lifting structure; 31 is the pulley; 32 is the hook; 33 is the longitudinal tensioning jack; and 4 is the moving mechanism. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0028] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "connection" can refer to a direct connection or an indirect connection via intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this utility model are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to necessarily be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0030] Please see Figures 1 to 3 This application discloses a lifting frame, which includes a support frame 1 supported on a cast-in-place beam segment. One end of the support frame 1 is connected to the cast-in-place beam segment, and the other end extends outside the cast-in-place beam segment to serve as a lifting end for hoisting the next segment. The support frame 1 is provided with a lifting structure 3 for lifting the segment, and the lifting structure 3 can move along the length of the support frame 1. The support frame 1 is used to install a traction member 2 at the end of the cast-in-place beam segment, which is connected to a fixed or moving mechanism 4 of the completed segment through the traction member 2. This allows the fixing point of the lifting frame of this application to be freely set manually without significant restrictions from the surrounding environment. The structure is simple, the turnover rate is high, large lifting equipment is not required, construction risks are reduced, and costs are lowered.

[0031] Specifically, the support frame 1 in this embodiment includes a main beam 11 and a skeleton 12 for supporting the main beam 11. At least two sets of skeletons 12 are provided along the length of the main beam 11. The skeletons 12 support the main beam 11 in a suspended configuration. The specific number of skeletons 12 needs to be adjusted according to the weight of the segment to be lifted during on-site construction. Generally, the greater the weight of the segment to be lifted, the more skeletons 12 are required to enhance the overall load-bearing capacity and stability of the support frame 1. Furthermore, both ends of the main beam 11 need to extend beyond the defined range of the skeleton 12 to form cantilever arms. These cantilever arms facilitate the lifting operation of the lifting structure 3 and provide more operating space for the lifting structure 3. In this embodiment, the skeleton 12 is configured as an inverted U-shaped structure. The main beam 11 is fixed to the skeleton 12 by full welding, located below the top of its centerline. The two sides of the inverted U-shaped skeleton 12 can provide uniform support force to the main beam 11, effectively preventing lateral deformation of the main beam 11 during stress and ensuring the overall structural safety of the support frame 1.

[0032] One end of the main beam 11 is connected to the traction member 2 as a fixed end, providing a stable support foundation for the entire support frame 1. The other end serves as a lifting end for the lifting structure 3 to lift the segment to be constructed. The fixed end of the main beam 11 has a fixing hole 111 for connecting the traction member 2. In this embodiment, the traction member 2 is a hand-operated hoist. One end of the hand-operated hoist is connected to the main beam 11 through the fixing hole 111, and the other end is connected to the completed segment. Simultaneously, the other end of the main beam 11 is used to lift the segment to be constructed via the lifting structure 3. While the lifting structure 3 is lifting the segment, the hand-operated hoist adjusts the stress state of the entire support frame 1 by connecting the main beam 11 to the completed segment. This coordination method ensures that the entire support frame achieves stress balance, avoiding structural deformation or damage caused by uneven stress.

[0033] In specific hoisting operations, the pulling force of the hand-operated hoist needs to be adjusted according to the position of the segment to be installed. Since this embodiment involves lifting the segment to be installed from a completed segment to a designated height at the end for installation, the pulling force of the hand-operated hoist is relatively small at the initial stage of lifting. As the segment approaches the installation position, the pulling force of the hand-operated hoist is gradually increased to ensure the overall force balance of the support frame 1, allowing the lifting structure 3 to place the segment more smoothly into the designated position. This precise coordination not only improves the safety and efficiency of construction but also extends the service life of the hoist.

[0034] Furthermore, the end of the hand-operated hoist used to connect to the completed block is connected to the moving mechanism 4. In this embodiment, the moving mechanism 4 is configured as a moving trolley, which allows for convenient manual adjustment of the fixed point of the support frame 1. In traditional construction methods, once the fixed point of the support frame 1 is determined, it is difficult to adjust, which brings many inconveniences to the construction process. However, the moving trolley in this embodiment breaks this limitation. Construction workers can easily change the connection position between the hand-operated hoist and the completed block through simple operations, such as pushing or pulling the trolley, thereby achieving flexible adjustment of the fixed point of the support frame 1.

[0035] The mobile trolley, as the key moving mechanism in this embodiment, is typically made of high-strength, lightweight materials, such as aluminum alloy or carbon fiber composites, to ensure its portability while bearing significant loads, facilitating manual operation. The trolley's bottom is equipped with high-quality pulleys or track wheels, which possess excellent wear resistance and rolling performance, allowing for smooth sliding on tracks or flat surfaces at the construction site. The mobile trolley is equipped with fixing mechanisms to secure completed sections. For example, when the mobile trolley moves on tracks, it is fixed using a track fixing structure; in construction sites without tracks, the mobile trolley can be fixed using a ground anchor type fixing structure. When selecting a fixing method, the conditions of the construction site, the load requirements of the trolley, and the needs of the construction process should be fully considered.

[0036] The lifting structure 3 of this embodiment includes a pulley 31 slidably mounted on the main beam 11 and a hook 32 connected to the pulley 31. The pulley 31 slides along the length of the main beam 11, thereby lifting the block to be constructed and moving it along the length of the main beam 11. Limiting blocks 112 are provided at both ends of the main beam 11 to limit the movement range of the pulley 31, prevent the pulley 31 from detaching from the main beam 11, and ensure the safety of the lifting operation.

[0037] The hook 32 is connected to a longitudinal tension jack 33, which provides vertical lifting force to the section to be lifted, ensuring that the section can be lifted smoothly and accurately to the designated height. The longitudinal tension jack 33 works in conjunction with the hook 32 and pulley 31 to achieve more complex lifting operations. After the section to be lifted to the designated height, workers can perform the next installation operation on the scaffold at the end of the section.

[0038] In summary, the gantry of this application sets the fixing point of the traction component 2 on the moving mechanism 4, and utilizes the adjustable position of the moving mechanism 4 to achieve arbitrary adjustment of the fixing point of the gantry, adapting to different lifting needs and reducing the impact of the surrounding environment on the gantry. Furthermore, with one end of the support frame 1 serving as the fixed end and the other end as the lifting end, the gantry as a whole can achieve force balance, ensuring the stability of the lifting operation.

[0039] The gantry structure of this application is simple and easy to operate, which can significantly improve the construction efficiency of bridge segments, further shorten the segment construction cycle, and avoid the use of large lifting equipment such as tower cranes throughout the construction process, thereby reducing construction costs.

[0040] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A hanger, characterized in that, The device includes a support frame that is supported on a completed construction block. One end of the support frame extends beyond the completed construction block, and the other end is connected to the completed construction block via a moving mechanism that moves on the completed construction block. The support frame is equipped with a lifting structure that slides along its length.

2. The hanger according to claim 1, characterized in that, The support frame is connected to the moving mechanism via a traction member. One end of the traction member is fixed to the end of the support frame, and the other end is connected to the moving mechanism.

3. The hanger according to claim 2, characterized in that, The moving mechanism includes a mobile trolley that moves on the completed construction blocks.

4. The hanger according to claim 1, characterized in that, The support frame includes a main beam and at least two sets of skeletons for supporting the main beam. The skeletons are arranged along the length of the main beam, and both ends of the main beam extend outside the skeletons to form cantilever.

5. The hanger according to claim 4, characterized in that, The frame is configured as an inverted U-shaped structure, and the main beam is connected to the top of the frame located below its centerline.

6. The hanger according to claim 4, characterized in that, One end of the main beam serves as the lifting end, and the other end is provided with a fixing hole for connecting with the traction component.

7. The hanger according to claim 4, characterized in that, The lifting structure includes a pulley trolley mounted on the main beam and sliding along the length of the main beam, and a hook mounted on the pulley trolley.

8. The hanger according to claim 7, characterized in that, The hook is connected to a longitudinal tensioning jack.

9. The hanger according to claim 7, characterized in that, The main beam is equipped with limit blocks at both ends to prevent the pulley trolley from detaching from the main beam.

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