Adjustable reinforcement device for lattice tower crane

Abstract

The utility model provides a kind of adjustable reinforcing device for lattice tower crane, it is related to lattice column reinforcing technical field, including positioning lattice column and deflection lattice column, node plate is welded on the positioning lattice column, fine adjustment welding assembly is welded on the deflection lattice column, the fine adjustment welding assembly includes base plate, fine adjustment plate, fine adjustment bolt and fine adjustment slide, the base plate is set to integrated leveling weld plate and base plate, the front end of the base plate and fine adjustment plate is hinged to each other, fine adjustment channel is provided on leveling weld plate and fine adjustment plate, fine adjustment slide block is provided on the upper and lower ends of the fine adjustment slide, the fine adjustment slide block is slidably installed in fine adjustment channel, the fine adjustment bolt is rotatably installed on base plate, translation nut is welded in the middle of the fine adjustment slide, the fine adjustment bolt is screw and translation nut screw connection.The utility model can adjust the angle of fine adjustment welding assembly by fine adjustment bolt, so that it is adapted to welding of different deflection angles.

Description

Technical Field

[0001] This utility model relates to the field of lattice column reinforcement technology, specifically an adjustable reinforcement device for lattice tower cranes. Background Technology

[0002] Tower cranes are ubiquitous in modern construction. Among them, lattice-type tower crane foundations are quite common. A lattice-type tower crane foundation consists of a foundation cap, lattice steel columns, and cast-in-place piles. It possesses high rigidity and anti-overturning capacity, and is often used in adverse geological conditions such as soft soil and high groundwater levels. To ensure that the lattice steel columns work together as a whole to share the load, bracing strips are usually welded between the lattice columns to reinforce them. However, during construction, due to hoisting positioning errors, concrete pouring impacts, and other reasons, the lattice columns may twist, causing misalignment of the welded surfaces between the lattice columns and affecting the welding strength of the bracing strips.

[0003] For example, the utility model patent with patent number CN202421960692.X discloses a lattice column misalignment reinforcement component. It uses existing steel plates or armhole plates between the lattice column and the horizontal steel brace (diagonal brace) as raw materials. The triangular box body welded on site is a fixed structure. When the dimensional deviation between the triangular box body and the deflected lattice column occurs after the triangular box body is welded, it cannot be fine-tuned and needs to be re-cut and welded, which affects the construction efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable reinforcement device for lattice-type tower cranes, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An adjustable reinforcement device for a lattice tower crane includes spaced-apart lattice column groups. Each lattice column group comprises several square-distributed positioning lattice columns and deflecting lattice columns. Node plates are welded to the positioning lattice columns, and fine-tuning welding assemblies are welded to the deflecting lattice columns. Each fine-tuning welding assembly includes a base plate, a fine-tuning plate, fine-tuning bolts, and a fine-tuning slide. The base plate is configured as an integrally formed leveling welding plate and a base plate perpendicular to the leveling welding plate. A pivot pin is provided at the front end of the leveling welding plate, and the front end of the fine-tuning plate... The leveling plate and the fine-tuning plate are rotatably connected to the pivot pin. Corresponding fine-tuning channels are provided on the leveling welding plate and the fine-tuning plate. Fine-tuning sliders are provided at the upper and lower ends of the fine-tuning slide. The fine-tuning sliders are slidably installed in the fine-tuning channels. The fine-tuning bolt is rotatably installed on the base plate. A translation nut is welded to the middle of the fine-tuning slide. The fine-tuning bolt is threadedly connected to the translation nut. The fine-tuning plate is welded to the outer wall of the deflection lattice column. The leveling welding plate and the outer wall of the node plate are flush with each other. A connecting strip is welded between the leveling welding plate and the node plate.

[0006] Preferably, a displacement slot is vertically provided in the middle of the fine-tuning channel, a sliding column is vertically provided at the outer end of the fine-tuning slider, the fine-tuning slider slides through the displacement slot, and the sliding column slides into the fine-tuning channel.

[0007] Preferably, the fine-tuning channel has two parallel channels, and the fine-tuning slide has two corresponding channels. The lower sidewall of the fine-tuning slide slides against the upper side of the leveling welding plate, and a displacement gap is provided between the upper sidewall of the fine-tuning slide and the fine-tuning plate.

[0008] Preferably, the base plate has a connecting hole in the middle, the fine-tuning bolt rotates through the connecting hole, the fine-tuning bolt has a limit ring in the middle, the limit ring slides and abuts against the inner side of the base plate, the fine-tuning slide is opened in the middle of the extension hole, and the translation nut is concentrically welded to the front side of the extension hole.

[0009] Preferably, the inner end of the fine-tuning bolt is rotatably connected to a support seat, and the support seat is fixed on the upper side of the leveling welding plate.

[0010] This utility model provides an adjustable reinforcement device for lattice-type tower cranes. It has the following beneficial effects: 1. In this utility model, by rotating the fine-tuning bolt, the fine-tuning slide can be pushed to slide horizontally along the fine-tuning channel, thereby pushing the fine-tuning plate to rotate around the pivot pin, so as to adjust the angle between the base plate and the fine-tuning plate, which is adapted to the welding of different deflection angles of the lattice column group and ensures the welding of the connecting strip is stable. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an adjustable reinforcement device for a lattice tower crane according to the present invention; Figure 2 for Figure 1 Enlarged view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure of the fine-tuning welding assembly in this utility model; Figure 4 This is a cross-sectional view of the fine-tuning welding assembly in this utility model; Figure 5 This is an exploded view of the fine-tuning welding assembly in this utility model.

[0012] In the diagram: 1. Positioning lattice column; 2. Deflection lattice column; 3. Node plate; 4. Connecting strip; 5. Base plate; 51. Leveling welding plate; 52. Foundation plate; 6. Fine-tuning plate; 7. Fine-tuning bolt; 8. Fine-tuning slide; 9. Pivot pin; 10. Fine-tuning channel; 11. Displacement slot; 12. Fine-tuning slider; 13. Sliding column; 14. Translation nut; 15. Limiting ring; 16. Support seat. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] This utility model embodiment provides an adjustable reinforcement device for lattice tower cranes, such as... Figure 1 As shown, the structure includes a lattice column group with intervals. The lattice column group includes several positioning lattice columns 1 and deflecting lattice columns 2 arranged in a square. There are three positioning lattice columns 1 and one deflecting lattice column 2. The outer side of the positioning lattice column 1 is welded with a node plate 3. The deflecting lattice column 2 is welded with a fine-tuning welding component. The fine-tuning welding component is flush with the outer wall of the node plate 3. Connecting strips 4 for reinforcing the lattice column group are welded between two adjacent positioning lattice columns 1 or deflecting lattice columns 2 to ensure that the lattice steel columns work together as a whole to jointly bear the load and improve the structural strength of the lattice tower crane foundation.

[0015] like Figure 2-5 As shown, the fine-tuning welding assembly includes a base plate 5, a fine-tuning plate 6, a fine-tuning bolt 7, and a fine-tuning slide 8; The base plate 5 is configured as an integrally formed leveling welding plate 51 and a base plate 52 perpendicular to the leveling welding plate 51. The front end of the leveling welding plate 51 is provided with a pivot pin 9.

[0016] The outer wall of the fine-tuning plate 6 is welded to the outer wall of the deflection lattice column 2. The front end of the fine-tuning plate 6 is rotatably connected to the pivot pin 9. The other side of the fine-tuning plate 6 extends towards the base plate 52. The fine-tuning plate 6 can be rotated around the pivot pin 9 to fine-tune the angle of the fine-tuning welding assembly, so that it can adapt to different deflection angles of the deflection lattice column 2. When the fine-tuning plate 6 is welded to the outer wall of the deflection lattice column 2, the outer wall of the leveling welding plate 51 can be kept on the same horizontal plane as the node plate 3. The two ends of the connecting strip 4 are respectively welded to the node plate 3 and the leveling welding plate 51 to ensure the firmness of the welding of the connecting strip 4.

[0017] The leveling welding plate 51 and the fine-tuning plate 6 are provided with two sets of parallel fine-tuning channels 10 on their corresponding sides. A displacement slot 11 is vertically provided in the middle of the fine-tuning channel 10. Fine-tuning sliders 12 are provided at the upper and lower ends of the fine-tuning slide block 8. The fine-tuning sliders 12 slide through the displacement slots 11. A sliding column 13 is vertically provided at the position of the fine-tuning slider 12 corresponding to the position of the fine-tuning channel 10. The sliding column 13 slides and inserts into the fine-tuning channel 10. The lower side wall of the fine-tuning slide block 8 slides and abuts against the upper side of the leveling welding plate 51. A displacement gap is provided between the upper side wall of the fine-tuning slide block 8 and the fine-tuning plate 6.

[0018] A connecting hole is provided in the middle of the base plate 52. The fine-tuning bolt 7 rotates through the connecting hole and extends inward. A limit ring 15 is provided in the middle of the fine-tuning bolt 7. The limit ring 15 slides and abuts against the inner side of the base plate 52. A support seat 16 is rotatably connected to the inner end of the fine-tuning bolt 7. The support seat 16 is fixed to the upper side of the leveling welding plate 51. The middle of the fine-tuning slide 8 is opened in the extension hole. A translation nut 14 concentrically arranged with the extension hole is welded to the front side of the fine-tuning slide 8. The translation nut 14 is threadedly connected to the fine-tuning bolt 7. The fine-tuning bolt 7 is slidably connected through the extension hole. Rotating the fine-tuning bolt 7 allows the fine-tuning slide 8 to slide left and right along the fine-tuning channel 10 through the threaded connection with the translation nut 14. This can push the leveling welding plate 51 and the fine-tuning plate 6 to rotate around the pivot pin 9, increasing or decreasing the included angle between the leveling welding plate 51 and the fine-tuning plate 6. This adjusts the left and right position of the fine-tuning plate 6 and allows welding, ensuring that the leveling welding plate 51 and the node plate 3 remain in translation. This keeps the welding surfaces of both ends of the connecting strip 4 on the same horizontal plane, preventing the welding from warping and improving the welding firmness of the connecting strip 4.

[0019] Working principle: In this invention, based on the relative deflection angle between the deflection lattice column 2 and the positioning lattice column 1, the fine-tuning bolt 7 is screwed on, and the fine-tuning slide 8 is pushed to slide left and right along the fine-tuning channel 10, so that the angle between the leveling welding plate 51 and the node plate 3 is equal to the deflection angle. By adjusting the left and right positions of the fine-tuning welding group, the leveling welding plate 51 and the node plate 3 are on the same plane. At this time, the fine-tuning plate 6 is welded and fixed in this position. Then, the connecting strip 4 can be welded between the node plate 3 and the leveling welding plate 51 so that the welding surfaces of the two ends of the connecting strip 4 are held on the same horizontal plane, avoiding the welding warping and improving the welding firmness of the connecting strip 4.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable stiffening device for a lattice tower, comprising a plurality of lattice column groups distributed at intervals, characterized in that: The lattice column group includes several square-distributed positioning lattice columns and deflection lattice columns. Node plates are welded to the positioning lattice columns, and fine-tuning welding assemblies are welded to the deflection lattice columns. Each fine-tuning welding assembly includes a base plate, a fine-tuning plate, a fine-tuning bolt, and a fine-tuning slide. The base plate is configured as an integrally formed leveling welding plate and a base plate perpendicular to the leveling welding plate. A pivot pin is provided at the front end of the leveling welding plate, and the front end of the fine-tuning plate is rotatably connected to the pivot pin. Corresponding fine-tuning channels are provided on the leveling welding plate and the fine-tuning plate. Fine-tuning sliders are provided at both ends of the fine-tuning slide, and the sliders are slidably installed within the fine-tuning channels. The fine-tuning bolt is rotatably installed on the base plate. A translation nut is welded to the center of the fine-tuning slide, and the fine-tuning bolt is threadedly connected to the translation nut. The fine-tuning plate is welded to the outer wall of the deflection lattice column, and the outer walls of the leveling welding plate and the node plate are flush. A connecting strip is welded between the leveling welding plate and the node plate.

2. An adjustable bracing device for a lattice tower crane according to claim 1, characterized in that: A displacement slot is vertically provided in the middle of the fine-tuning channel, and a sliding column is vertically provided at the outer end of the fine-tuning slider. The fine-tuning slider slides through the displacement slot, and the sliding column slides into the fine-tuning channel.

3. An adjustable reinforcement device for a lattice-type tower crane according to claim 2, characterized in that: The fine-tuning channel has two parallel channels, and the fine-tuning slide has two corresponding channels. The lower sidewall of the fine-tuning slide slides against the upper side of the leveling welding plate, and a displacement gap is provided between the upper sidewall of the fine-tuning slide and the fine-tuning plate.

4. An adjustable reinforcement device for a lattice-type tower crane according to claim 3, characterized in that: The base plate has a connecting hole in the middle, the fine-tuning bolt rotates through the connecting hole, the fine-tuning bolt has a limit ring in the middle, the limit ring slides and abuts against the inner side of the base plate, the fine-tuning slide is opened in the middle of the extension hole, and the translation nut is concentrically welded to the front side of the extension hole.

5. An adjustable reinforcement device for a lattice-type tower crane according to claim 4, characterized in that: The inner end of the fine-tuning bolt is rotatably connected to a support seat, which is fixed to the upper side of the leveling welding plate.

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