A mobile support for reinforcement cages

Abstract

The utility model relates to the field of pile foundation construction technology, concretely relates to a mobile support for reinforcing cage, including horizontal roof beam, two stand and two bottom beam. The horizontal roof beam is hung with chain hoist, the chain hoist is used for hoisting reinforcing cage, and hoisting point is located the top of reinforcing cage, the top of two stand is connected with the both ends of horizontal roof beam respectively, the midpoint of two bottom beam is connected with the bottom of two stand respectively, the bottom beam is perpendicular with the stand and the horizontal roof beam, the bottom of two bottom beam is equipped with gyro wheel, the overall height of mobile support is lower than the height of the position of contact network on contact network pole. The application can effectively reduce the probability of collision between reinforcing cage or mobile support and contact network on contact network pole, and further reduce the risk of operation invasion of contact network of existing railway by hoisting reinforcing cage, effectively prevent serious safety accidents caused by the damage of contact network.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction technology, and in particular to a movable support for steel cages. Background Technology

[0002] In the field of pile foundation construction, the conventional construction process is as follows: first, the pile hole is excavated; then, the reinforcing cage is lowered; and finally, the concrete is poured. In the lowering of the reinforcing cage, a crane is typically used to lift it up and then slowly lower it into the pile hole.

[0003] However, the situation becomes complicated when the pile foundation is located near an existing operating railway. Existing operating railways typically have overhead contact lines on both sides. In this specific scenario, if a crane is still used to lift the reinforcing cage, the lifting height often exceeds the height of the contact line, making it highly likely that the steel cage or crane wire rope will encroach on the safety zone of the contact line. Such encroachment could potentially damage the contact line, leading to a serious safety accident. Therefore, it is necessary to develop a completely new solution for this special case of pile foundations located near existing operating railways. Utility Model Content

[0004] The purpose of this utility model is to overcome the problem that when the pile foundation is located near an existing operating railway, the traditional method of hoisting the steel cage can easily intrude into the contact wire of the existing railway, thus causing serious safety accidents. This utility model provides a mobile support for the steel cage.

[0005] This utility model provides a movable support for a rebar cage, comprising:

[0006] A horizontal beam, on which a hand-operated hoist is suspended, the hand-operated hoist being used to hoist a reinforcing cage, the hoisting point being located at the top of the reinforcing cage;

[0007] Two columns, the tops of which are respectively connected to the two ends of the horizontal beam;

[0008] Two bottom beams are provided, with the midpoints of the two bottom beams respectively connected to the bottom ends of the two columns. The bottom beams are perpendicular to the columns and the horizontal beams. Rollers are provided at the bottom of the two bottom beams.

[0009] The overall height of the movable support is lower than the height of the contact wire on the contact wire pole.

[0010] The overhead contact line is located above the existing railway tracks and extends along the track direction. It is a conductive line that directly supplies power to the trains. The overhead contact line poles stand vertically beside the existing railway tracks, acting like "supports" to fix the overhead contact line at a specific height and position.

[0011] This utility model provides a movable support for a rebar cage. A horizontal beam connects two uprights at both ends, forming a unified portal frame. The horizontal beam bears the load of a hand-operated hoist used to lift the rebar cage below. The lifting point is located at the top of the rebar cage, allowing it to be lifted vertically without exceeding the height of the movable support. The uprights, acting as vertical members, transmit the load from the horizontal beam downwards. A bottom beam provides stable support for the uprights, and rollers at the bottom of the bottom beam facilitate flexible movement of the entire movable support.

[0012] The movable support can lift the reinforcing cage from a location away from the existing railway, then move it to a pile hole adjacent to the existing railway, and finally lower the reinforcing cage into the pile hole. Because the overall height of the movable support is lower than the height of the existing railway's contact wire pole, the probability of collision between the reinforcing cage or the movable support and the contact wire on the contact wire pole is effectively reduced during the lifting and moving of the reinforcing cage. This reduces the risk of the lifting operation encroaching on the existing railway's contact wire, effectively preventing serious safety accidents caused by damage to the contact wire.

[0013] The rollers can be fixed wheels or swivel wheels, and the material can be rubber, nylon or carbon steel.

[0014] Preferably, a first diagonal brace is provided between the column body and both ends of the corresponding base beam of each column. In this design, by providing the first diagonal brace, the stability of the column can be effectively enhanced, making the column structure more stable when subjected to various external forces; at the same time, it can also improve the overturning resistance of the column and reduce the risk of the column tipping over due to unbalanced external forces.

[0015] Preferably, a connecting rod is provided between the first diagonal brace and the column. In this design, the connecting rod can further strengthen the overall integrity between the first diagonal brace and the column, and further improve the stability of the movable support.

[0016] Preferably, a fixing rope is connected to the horizontal beam, and the other end of the fixing rope is used to connect to an anchor point on the ground. In this design, the fixing rope can be erected between the horizontal beam and the anchor point on the side away from the existing railway. With this connection method, when the movable support is subjected to external forces and tends to tilt towards the existing railway, the fixing rope can provide a reverse tension, thereby effectively reducing the risk of the movable support tilting towards the existing railway and avoiding damage to the contact wire caused by the tilting of the movable support.

[0017] Preferably, a second diagonal brace is provided at each end of the horizontal beam between it and the two columns, and the angle between the second diagonal brace and the horizontal beam is 45°-60°. In this design, the second diagonal brace is used to strengthen the connection between the horizontal beam and the columns, thereby improving the stability of the overall structure.

[0018] Preferably, each of the two bottom beams is provided with several detachable base supports. In this design, when the reinforcing cage is lowered, the base supports can provide stable support for the bottom of the bottom beams, ensuring the stability of the structure during the lowering process; and when it is necessary to move the movable support, the base supports can be removed to prevent them from obstructing the movement of the movable support.

[0019] The base support and the base beam can be connected by bolts or clips.

[0020] Preferably, the base support and the base beam are connected by a snap-fit ​​connection. Compared to a bolt connection, this snap-fit ​​connection method allows for quicker and more convenient installation and removal of the base support and the base beam.

[0021] The horizontal beam can be an I-beam or a square steel tube.

[0022] Preferably, the horizontal beam is a No. 16 I-beam. Compared to square steel tubes, I-beams can more effectively distribute and resist bending moments, thus exhibiting superior bending performance.

[0023] Preferably, both the column and the bottom beam are rectangular steel pipes.

[0024] Preferably, the roller is a swivel wheel, and the roller is made of nylon. Compared with fixed wheels, the swivel wheel has superior flexibility and ease of operation. In terms of material properties, nylon is harder than rubber, which makes the roller less prone to deformation under greater pressure, thus ensuring smooth and stable rolling. Compared with carbon steel, nylon has a natural rust-resistant advantage, and will not rust or corrode due to environmental factors, thereby significantly enhancing the durability of the roller and extending its service life.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] This utility model provides a movable support for a rebar cage, which can effectively reduce the probability of the rebar cage or the movable support colliding with the contact wire on the contact wire pole, thereby reducing the risk of the rebar cage hoisting operation encroaching on the contact wire of the existing railway, and effectively preventing serious safety accidents caused by damage to the contact wire. Attached Figure Description

[0027] Figure 1 This is a front view of a movable support for a steel reinforcement cage.

[0028] Figure 2 This is a side view of a movable support for a steel reinforcement cage.

[0029] Figure 3 This is a schematic diagram of the use of a movable support for a steel reinforcement cage.

[0030] Marked in the image:

[0031] 1-Horizontal beam,

[0032] 2-Column,

[0033] 3-Bottom beam,

[0034] 4-rollers,

[0035] 5- Hand-operated chain hoist,

[0036] 6-Base support,

[0037] 7-First diagonal brace,

[0038] 8-Fixing rope,

[0039] 9-Second diagonal brace,

[0040] 10-Connecting rod,

[0041] 11-Reinforcing cage,

[0042] 12-Anchoring point,

[0043] 13-Contact wire pole,

[0044] 14- Existing railways. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0046] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0048] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0049] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0050] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0051] Example 1

[0052] like Figures 1 to 3 As shown, a movable support for a steel cage includes a horizontal beam 1, two columns 2, and two bottom beams 3.

[0053] A chain hoist 5 is suspended on the horizontal beam 1. The chain hoist 5 is used to lift the reinforcing cage 11, and the lifting point is located at the top of the reinforcing cage 11. Specifically, there can be two chain hoists 5, which need to be arranged symmetrically on the horizontal beam 1. The rated load of the chain hoist 5 is 5 tons.

[0054] The tops of the two columns 2 are connected to the two ends of the horizontal beam 1, respectively, by means of bolting or welding.

[0055] The midpoints of the two bottom beams 3 are connected to the bottom ends of the two columns 2 respectively. The bottom beams 3 are perpendicular to the columns 2 and the horizontal beam 1. Each bottom beam 3 is equipped with rollers 4 at its bottom. The connection between the bottom beams 3 and the columns 2 can be by bolting or welding. Each bottom beam 3 has two rollers 4 at its bottom, which are installed at both ends of the bottom of the corresponding bottom beam 3.

[0056] The overall height of the movable support is lower than the height of the contact wire on the contact wire pole 13. For example, when the height of the contact wire is 6m, the overall height of the movable support can be 4.5m, 4.8m, 5m, or 5.4m. The contact wire pole 13 is erected vertically beside the existing railway track 14.

[0057] It should be noted that the height of the steel cage 11 involved in this application needs to be adapted to the movable support. Specifically, the integral steel cage in the traditional solution is transformed into a multi-segment structure to ensure that each segment of the steel cage 11 can be lifted individually by the movable support described in this application, and the segments of the steel cage 11 are connected into a whole by welding during the sequential lowering process.

[0058] In an optional embodiment, each column 2 may have a first diagonal brace 7 installed between its body and both ends of the corresponding base beam 3. The "corresponding base beam 3" refers to the base beam 3 located at the same end of the horizontal beam 1 as the column 2. Specifically, when the base beam 3 and the column 2 are both at the left end of the horizontal beam 1, they correspond to each other; similarly, when the base beam 3 and the column 2 are both at the right end of the horizontal beam 1, they also correspond. Specifically, the two ends of the first diagonal brace 7 are connected to the column 2 and the base beam 3 respectively by bolts or welding. The connection position of the first diagonal brace 7 to the column 2 can be within the range of 1 / 5 to 1 / 4 of the column 2's height from the top downwards. The first diagonal brace 7 can be a round steel pipe with a diameter of 100mm or a square steel pipe with a cross-section of 100mm × 100mm.

[0059] In an optional embodiment, a connecting rod 10 may be provided between the first diagonal brace 7 and the column 2. Specifically, the connecting rod 10 is connected to the midpoint of the first diagonal brace 7 and is arranged horizontally. The connecting rod 10 may be an angle steel.

[0060] In an optional embodiment, a fixing rope 8 may be connected to the horizontal beam 1, with the other end of the fixing rope 8 used to connect to an anchor point 12 on the ground. The fixing rope 8 may specifically be a steel wire rope or a nylon rope. The anchor point 12 may be a reinforced concrete counterweight pre-embedded in the ground.

[0061] In an optional embodiment, a second diagonal brace 9 can be provided between each end of the horizontal beam 1 and the two columns 2. The angle between the second diagonal brace 9 and the horizontal beam 1 can be 45°-60°, specifically 45°, 50°, 55°, or 60°. The connection position between the second diagonal brace 9 and the column 2 can be within the range of 1 / 5 to 1 / 4 of the height of the column 2 from the top downwards. The second diagonal brace 9 can be a square steel tube with a cross-section of 150mm × 150mm.

[0062] In an optional embodiment, each of the two bottom beams 3 may be provided with several detachable base supports 6. Specifically, each bottom beam 3 may have three base supports 6, which are respectively installed at both ends and the middle of the bottom of the corresponding bottom beam 3. The base supports 6 are made of steel to ensure sufficient support strength. The bottom surface of the base support 6 is provided with a 10mm thick hard rubber pad to effectively prevent relative sliding between the base support 6 and the supporting surface.

[0063] In an optional embodiment, the base support 6 and the base beam 3 can be connected by a snap-fit ​​mechanism. Specifically, the base beam 3 has a corresponding slot. During installation, the snap-fit ​​mechanism of the base support 6 is aligned with the slot of the base beam 3 and pressed firmly to ensure a tight fit and connection.

[0064] In an optional implementation, the horizontal beam 1 can be a No. 16 I-beam. The length of the horizontal beam 1 can be 4m-5m, specifically 4m, 4.2m, 4.4m, 4.5m, 4.6m, 4.8m, or 5m.

[0065] In an optional embodiment, both the column 2 and the base beam 3 can be rectangular steel tubes. Specifically, the cross-section of the column 2 can be a square with a side length of 150mm-200mm. The cross-section of the base beam 3 can also be a square with a side length of 150mm-200mm.

[0066] In an optional implementation, the roller 4 can be a swivel wheel, and the material of the roller 4 can be nylon.

[0067] 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 travelling formwork for reinforcement cages, characterised in that, The utility model relates to a mobile support for lifting steel reinforcement cage, comprising: a horizontal beam (1) on which a hand chain block (5) is hung, the hand chain block (5) being used for lifting a steel reinforcement cage (11), and the lifting point being located at the top of the steel reinforcement cage (11); two vertical columns (2), the top ends of the two vertical columns (2) being connected with the two ends of the horizontal beam (1) respectively; two bottom beams (3), the midpoints of the two bottom beams (3) being connected with the bottom ends of the two vertical columns (2) respectively, the bottom beams (3) being perpendicular to the vertical columns (2) and the horizontal beam (1), and the bottoms of the two bottom beams (3) being each provided with a roller (4); the overall height of the mobile support being lower than the height of the position of the overhead line on the overhead line pole (13).

2. A travelling support for reinforcement cages as claimed in claim 1, characterised in that, A first inclined strut (7) is arranged between the column body of each vertical column (2) and the two ends of the corresponding bottom beam (3).

3. A travelling support for reinforcement cages as claimed in claim 2, characterised in that, A connecting rod (10) is arranged between the first inclined strut (7) and the vertical column (2).

4. A travelling support for reinforcement cages as claimed in claim 1 characterised in that, A fixing rope (8) is connected to the horizontal beam (1), and the other end of the fixing rope (8) is used for being connected with an anchoring point (12) on the ground.

5. A travelling support for reinforcement cages as claimed in claim 1 characterised in that, A second inclined strut (9) is arranged between the two ends of the horizontal beam (1) and the two vertical columns (2) respectively, and the included angle between the second inclined strut (9) and the horizontal beam (1) is 45-60 degrees.

6. A travelling formwork for reinforcement cages as claimed in any one of claims 1 to 5, characterised in that, The bottoms of the two bottom beams (3) are each provided with a plurality of detachable bottom supports (6).

7. A travelling support for reinforcement cages as claimed in claim 6 wherein, The bottom support (6) and the bottom beam (3) are connected through buckling.

8. A travelling support for reinforcement cages as claimed in claim 6 wherein, The horizontal beam (1) is a No. 16 I-shaped steel.

9. A travelling support for reinforcement cages as claimed in claim 6 wherein, The vertical column (2) and the bottom beam (3) are both rectangular steel pipes.

10. A travelling support for reinforcement cages as claimed in claim 6 wherein, The roller (4) is a universal wheel, and the material of the roller (4) is nylon.

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