Perpendicularity-controllable hoisting frame node for high pier

Abstract

The utility model relates to the field of high pier control hoisting frames, and discloses a node of a perpendicularity-controllable hoisting frame for a high pier, which comprises a plurality of supporting units including two upper supporting units and two lower supporting units, at each node, the upper supporting units are supported above the lower supporting units, and the lower supporting units are supported above the lower supporting units. A first upper connecting part is arranged on the lower side of the upper supporting unit, the height of the first upper connecting part is equal to that of the lower supporting unit, the end of the first upper connecting part is connected with the side face of the lower supporting unit, and the telescopic pieces comprise upper telescopic pieces and lower telescopic pieces. The upper ends of output shafts of the lower telescopic pieces are hinged to the lower supporting units, the lower ends of the upper telescopic pieces and the lower telescopic pieces are located at the same height on the two adjacent sides of the adjusting part, and the distances between the upper ends of the upper telescopic pieces and the adjusting part are equal. The posture of the frame can be improved at any time, and the durability of the adjusting part and the stability of the whole structure can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of high pier control lifting frame, specifically to a node for a verticality controllable lifting frame for high piers. Background Technology

[0002] During the construction of high piers, the lifting frame is usually used as a formwork support. The formwork and the end of the lifting frame are connected by tie rods to provide support. The verticality of the lifting frame is usually ensured by controlling the synchronous lifting of the core-type jacks. However, the accuracy of synchronous lifting cannot be fully guaranteed. Vertical adjustment can only be made by jacks after lifting. It is impossible to completely return the lifting frame to the initial horizontal position, thus making it impossible to accurately adjust the lifting frame.

[0003] like Figure 1 , Figure 2 As shown, the inventor developed a grid-shaped lifting frame with controllable verticality, publication number CN117569217A, patent name: A Lifting Frame with Controllable Verticality. By setting an adjustment part on a through-hole jack and setting telescopic parts on the adjacent sides of the adjustment part, the posture of the lifting frame can be adjusted by the telescopic parts. However, the grid shape is composed of two steel sections perpendicular to each other. If the steel sections in the two directions are at the same height, it is necessary to cut off one of the steel sections before welding, which will destroy the integrity of the structure. After the steel sections are cut and welded, their mechanical properties will definitely be worse than before processing, which will lead to structural instability and make them more prone to deformation, reducing the durability of the adjustment part and the stability of the overall structure. Utility Model Content

[0004] The present invention aims to provide a node for a vertically controllable lifting frame for high piers, which can both adjust the posture of the frame at any time and ensure the integrity of the structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a node for a vertically controllable lifting frame for high piers, comprising several support units. In the horizontal direction, the several support units are perpendicular to each other to form a grid structure and form four nodes, with a vertical guide hole formed at each node.

[0006] Each node is also equipped with a support rod, a through-hole jack, and two telescopic components. The through-hole jack has an adjustment part, which is supported below the support unit. The lower end of the support rod is embedded in the cast-in-place section of the pier column. The upper end of the support rod passes through the through-hole jack, the adjustment part, and the guide hole in sequence. The lower end of each telescopic component is hinged to the adjustment part; the upper end of each telescopic component is hinged to the support unit.

[0007] Several support units include two upper support units and two lower support units. At each node, the upper support unit supports the lower support unit. The lower side of the upper support unit is provided with a first upper connecting part. The height of the first upper connecting part and the lower support unit are equal. The end of the first upper connecting part is connected to the side of the lower support unit. The telescopic member includes an upper telescopic member and a lower telescopic member. The upper end of the output shaft of the upper telescopic member is hinged to the first upper connecting part. The upper end of the output shaft of the lower telescopic member is hinged to the lower support unit. The lower ends of the upper telescopic member and the lower telescopic member are at the same height on adjacent sides of the adjustment part. The distance between the upper end of the upper telescopic member and the lower telescopic member and the adjustment part is equal.

[0008] The beneficial effects of this plan are:

[0009] 1. This solution uses two layers of steel profiles in both directions to avoid disconnecting the support unit in one direction, ensuring the integrity of the support unit and optimizing the stress structure. However, the expansion joints in the two directions also need to be set at different heights to accommodate the height of the steel profiles. This can lead to uneven stress on both sides of the adjustment part during the adjustment process.

[0010] If the upper telescopic component and the upper support unit are directly connected, and the lower ends of the upper and lower telescopic components are at the same height on adjacent sides of the adjustment part, and the distance between the upper ends of the upper and lower telescopic components and the adjustment part is equal (it is necessary to ensure that the stress positions of the upper and lower support units are both optimal stress positions), then the tilt angles of the upper and lower telescopic components will inevitably be different. This will result in the upper telescopic component transmitting a larger vertical force to the adjustment part, while the lower telescopic component transmitting a larger horizontal force to the adjustment part, leading to an imbalance of forces on the adjustment part and deformation.

[0011] In this solution, by setting a connecting part, the height of the upper end of the telescopic component is reduced, so that the upper and lower telescopic components are symmetrically arranged relative to the adjustment part. This not only allows the posture of the frame to be raised at any time, but also ensures the durability of the adjustment part and the stability of the overall structure.

[0012] 2. To avoid disconnecting the support unit in one direction, this solution uses an upper and lower support unit that are staggered vertically. However, since the upper support unit needs to be fitted with a pull-up support template at its end, the middle of the upper support unit tends to arch upwards when under stress, causing the upper support unit within the node range to tilt. This results in eccentric pressure on the lower support unit and the adjustment part below. If the upper support unit is only welded to the upper surface of the lower support unit, it is insufficient to resist this deformation. Therefore, in this solution, a first upper connecting part is used to connect to the side of the lower support unit to increase the resistance to the above deformation and reduce the deformation of the upper support unit.

[0013] Furthermore, the lower support unit includes two parallel lower channel steels, the upper support unit includes two parallel upper channel steels, the first upper connecting part includes two parallel connecting channel steels, the lower flange of the upper channel steel and the upper flange of the connecting channel steel are bolted together, the upper channel steel and the lower channel steel are perpendicular to each other on the horizontal plane, the connecting channel steel and the lower channel steel are at the same height, and one end of the connecting channel steel abuts against the lower channel steel.

[0014] Furthermore, the upper and lower channel steels are welded together.

[0015] Furthermore, a second upper connecting part is provided on the lower side of the upper support unit. The second upper connecting part and the first upper connecting part are symmetrical about the central axis of the lower support unit. A steel plate is provided between the second upper connecting part and the first upper connecting part. The steel plate is placed between the lower support unit and the adjustment part. The two sides of the steel plate are welded to the second upper connecting part and the first upper connecting part, respectively.

[0016] This solution also has the following effects:

[0017] 1. The lower flange of the upper channel steel is bolted to the upper flange of the connecting channel steel. Compared with the direct connection to the web plate, the bolted connection has less impact on the structural strength of the channel steel.

[0018] 2. If the adjusting part can directly contact the lower channel steel, and the lifting frame posture is adjusted by the telescopic component, the friction between the adjusting part and the lower channel steel can easily cause local wear of the lower channel steel and stress concentration, resulting in reduced durability. In this solution, the steel plate is placed between the lower channel steel and the adjusting part. Even if the steel plate is worn, it can be directly replaced without affecting the lower channel steel.

[0019] 3. The second upper connecting part can transfer the bending moment to the first upper connecting part through the steel plate, connecting the upper support unit, the first upper connecting part of the steel plate and the second upper connecting part into a whole structure. The cross-sectional height of this whole structure is greater than that of the structure containing only the upper support unit. Therefore, the whole structure deforms less and is better stressed under the action of bending moment. Attached Figure Description

[0020] Figure 1 A three-dimensional isometric drawing of existing technology;

[0021] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0022] Figure 3 For the example, based on Figure 2 3D isometric view with improved positional structure;

[0023] Figure 4 This is a top view of an embodiment;

[0024] Figure 5 for Figure 4 Sectional view along the BB direction. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The reference numerals in the accompanying drawings include: support unit 1, upper support unit 11, upper channel steel 111, lower support unit 12, lower channel steel 121, first upper connecting part 13, second upper connecting part 14, support rod 2, through-hole jack 3, telescopic component 4, upper telescopic component 41, lower telescopic component 42, adjustment part 5, pier column 6, and formwork 7.

[0027] Example

[0028] The embodiments are based on, for example Figure 1-Figure 2 The existing technology shown is improved as follows: In the existing technology, four support units 1 of equal height are included. The ends of the support units 1 can be used to install tie rods, which are used to connect with the template 7 at the edge of the high pier and provide vertical support. Figure 1 (The tie rod is not shown in the figure). Each support unit 1 consists of two parallel channel steels. In the horizontal direction, the support units 1 form a grid structure with two vertical pairs and four nodes. Each node forms a vertical guide hole.

[0029] like Figure 2 As shown, each node is also equipped with a support rod 2, a through-hole jack 3, and two telescopic components 4. The through-hole jack 3 is used to climb on the support rod 2. An adjustment part 5 is bolted to the through-hole jack 3. The adjustment part 5 is supported below the support unit 1. The lower end of the support rod 2 is embedded in the cast-in-place section of the pier column 6. The upper end of the support rod 2 passes through the through-hole jack 3, the adjustment part 5, and the guide hole in sequence. The lower end of the telescopic components 4 is hinged to the adjustment part 5. The upper end of the telescopic components 4 is hinged to the support unit 1.

[0030] The difference between the embodiments and the prior art is as follows: Figure 3-Figure 5 As shown, a node for a vertically controllable lifting frame for high piers includes a support unit 1 comprising two upper support units 11 and two lower support units 12, as shown. Figure 3 As shown, at each node, the upper support unit 11 is supported above the lower support unit 12. The lower side of the upper support unit 11 is provided with a first upper connecting part 13 and a second upper connecting part 14. The second upper connecting part 14 is located on the side of the upper support unit 11 near the edge of the pier 6, and the first upper connecting part 13 is located on the side of the upper support unit 11 away from the edge of the pier 6. The first upper connecting part 13 and the lower support unit 12 are at the same height. The end of the first upper connecting part 13 is connected to the side of the lower support unit 12. The second upper connecting part 14 and the first upper connecting part 13 are symmetrical with respect to the central axis of the lower support unit 12.

[0031] All telescopic components 4 are jacks. The output shaft of the telescopic component 4 can extend and shorten. The telescopic component 4 includes an upper telescopic component 41 and a lower telescopic component 42. The upper end of the output shaft of the upper telescopic component 41 is hinged to the first upper connecting part 13. The upper end of the output shaft of the lower telescopic component 42 is hinged to the lower support unit 12. The lower ends of the upper telescopic component 41 and the lower telescopic component 42 are at the same height on adjacent sides of the adjustment part 5. The distance between the upper end of the upper telescopic component 41 and the lower telescopic component 42 and the adjustment part 5 is equal. In this embodiment, the two structures are hinged by passing a pin through both structures at the same time. The pin is welded to one of the structures and rotatably connected to the other structure.

[0032] The lower support unit 12 includes two parallel lower channel steels 121, and the upper support unit 11 includes two parallel upper channel steels 111. The lower flanges of the upper channel steels 111 and the upper flanges of the lower channel steels 121 are welded within the node range. The first upper connecting part 13 and the second upper connecting part 14 both include two parallel connecting channel steels. In this embodiment, all parallel channel steels are connected by bolts. The lower flange of the upper channel steel 111 and the upper flange of the connecting channel steel are bolted together. The upper channel steel 111 and the lower channel steel 121 are perpendicular to each other on the horizontal plane. The connecting channel steel and the lower channel steel 121 have the same height. One end of the connecting channel steel abuts against and is welded to the lower channel steel 121. Specifically, as shown... Figure 4 , Figure 5 As shown, the flange of the connecting channel steel near the lower channel steel 121 is cut off, so that the web of the connecting channel steel end is inserted between the upper and lower flanges of the lower channel steel 121. The web of the connecting channel steel and the web, upper and lower flanges of the lower channel steel 121 are welded together. A steel plate is provided between the second upper connecting part 14 and the first upper connecting part 13. In the vertical direction, the steel plate is provided between the lower support unit 12 and the adjustment part 5. The two sides of the steel plate are welded to the lower surfaces of the connecting channel steel of the second upper connecting part 14 and the first upper connecting part 13 respectively.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A node for a vertically controllable lifting frame for high piers, comprising several support units, wherein in the horizontal direction, the several support units are perpendicular to each other to form a grid structure and form four nodes, and a vertical guide hole is formed at each node; Each node is also equipped with a support rod, a through-hole jack, and two telescopic components. The through-hole jack has an adjustment part, which is supported below the support unit. The lower end of the support rod is embedded in the cast-in-place section of the pier column. The upper end of the support rod passes through the through-hole jack, the adjustment part, and the guide hole in sequence. The lower end of each telescopic component is hinged to the adjustment part; the upper end of each telescopic component is hinged to the support unit. Its features are: Several support units include two upper support units and two lower support units. At each node, the upper support unit supports the lower support unit. The lower side of the upper support unit is provided with a first upper connecting part. The height of the first upper connecting part and the lower support unit are equal. The end of the first upper connecting part is connected to the side of the lower support unit. The telescopic member includes an upper telescopic member and a lower telescopic member. The upper end of the output shaft of the upper telescopic member is hinged to the first upper connecting part. The upper end of the output shaft of the lower telescopic member is hinged to the lower support unit. The lower ends of the upper telescopic member and the lower telescopic member are at the same height on adjacent sides of the adjustment part. The distance between the upper end of the upper telescopic member and the lower telescopic member and the adjustment part is equal.

2. A node for a verticality-controllable lifting frame for high piers according to claim 1, characterized in that: The lower support unit includes two parallel lower channel steels, the upper support unit includes two parallel upper channel steels, the first upper connecting part includes two parallel connecting channel steels, the lower flange of the upper channel steel and the upper flange of the connecting channel steel are bolted together, the upper channel steel and the lower channel steel are perpendicular to each other on the horizontal plane, the connecting channel steel and the lower channel steel are at the same height, and one end of the connecting channel steel abuts against the lower channel steel.

3. A node for a verticality-controllable lifting frame for high piers according to claim 2, characterized in that: The upper and lower channel steels are welded together.

4. A node for a verticality-controllable lifting frame for high piers according to claim 1, characterized in that: The lower side of the upper support unit is also provided with a second upper connecting part. The second upper connecting part and the first upper connecting part are symmetrical with respect to the central axis of the lower support unit. A steel plate is provided between the second upper connecting part and the first upper connecting part. The steel plate is set between the lower support unit and the adjustment part. The two sides of the steel plate are welded to the second upper connecting part and the first upper connecting part, respectively.

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