Large-span portal steel frame support structure adjusting and positioning device

Abstract

The utility model discloses a large -span door type steel frame support structure adjusting positioning equipment, including the adjusting frame, and its inner chamber symmetry has two steel member installation grooves, steel member is set up in steel member installation groove, and with steel member installation groove sliding cooperation, the both ends of adjusting frame symmetry has the threaded slot hole that penetrates its body, short extrusion screw rod is connected in the threaded slot hole of one side near steel member, the utility model discloses a length stepless regulation is realized through the sliding of steel member in steel member installation groove, has solved the problem that the component size does not meet needs to return to the factory or cut off, realizes horizontal positioning with the help of short, long extrusion screw rod and U -shaped clamping block, and the two -way spacing fixation is formed with the end hoop and spacing rod, effectively prevents the component displacement, and simultaneously, the device can complete the adjustment and the fixation on the spot fast, and the construction efficiency is improved significantly and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel frame support structure technology, specifically to an adjustment and positioning device for a large-span portal steel frame support structure. Background Technology

[0002] Steel frame support structures, as major load-bearing components in modern buildings, are widely used in critical parts such as crane beams, work platform beams, floor beams, and roof structures. Due to transportation limitations, steel frame support structures typically need to be fabricated in sections in the factory and then transported to the construction site for assembly. Currently, common assembly methods are mainly divided into two categories: one is that the steel components have flange plates and web plates at the ends, and are butt-welded using bevel welding; the other is for heavy-duty steel frame support structures, which often use gusset plates and tie bolts to achieve mechanical connections.

[0003] However, existing splicing methods have significant limitations in terms of dimensional adaptability and on-site adjustment capabilities: components with bevel welding have a fixed length after welding, and if the actual dimensions do not match the design, adjustments are often difficult, generally requiring scrapping or reprocessing; while gusset plate connections are detachable, they still need to be disassembled and cut before reassembly if the component length exceeds the design value, and the entire component needs to be replaced if the length is insufficient. These situations not only lead to waste of materials and labor, but also significantly increase construction costs and time, and reduce the overall efficiency of the project. Therefore, we propose a new type of adjustment and positioning device for large-span portal steel frame support structures. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustment and positioning device for a large-span portal steel frame support structure, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-span portal steel frame support structure adjustment and positioning device, comprising an adjustment frame with two symmetrically opened steel component mounting slots in its inner cavity; steel components, disposed in the steel component mounting slots and slidably engaged with the steel component mounting slots; threaded slots penetrating the body are symmetrically opened at both ends of the adjustment frame; a short extrusion screw rod is threadedly connected to the threaded slot on the side closer to the steel component; a long extrusion screw rod is threadedly connected to the threaded slot on the side away from the steel component; a U-shaped locking block is threadedly connected to the short extrusion screw rod and the long extrusion screw rod respectively, and is located at the end of the adjustment frame; a first end clamp and a second end clamp are slidably connected to the adjustment frame; and an end clamp limiting rod is threadedly connected to the first end clamp and the second end clamp respectively.

[0006] Preferably, the cross-section of the adjusting frame is "mountain" shaped, and the steel component mounting groove extends along the length of the adjusting frame, allowing the steel component to slide axially along the steel component mounting groove.

[0007] Preferably, the ends of both the short and long extrusion screws abut against the side surface of the steel component, and radial extrusion fixing of the steel component is achieved by screwing them together.

[0008] Preferably, the U-shaped locking block is disposed at the end of the adjusting frame, and its opening faces the steel component and is located directly below the steel component.

[0009] Preferably, the first end clamp and the second end clamp are both integrally formed steel ring components, which are sleeved on the outside of the adjustment frame.

[0010] Preferably, the end clamp limiting rods are respectively disposed on both sides of the first end clamp and the second end clamp, and pass through the corresponding end clamps to abut against the adjusting frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention achieves stepless length adjustment by sliding the steel component within the mounting groove of the adjusting frame, solving the problem of components needing to be returned to the factory or cut if the dimensions do not match. It uses short and long extrusion screw rods and U-shaped blocks to achieve lateral positioning, and works with end clamps and limit rods to form bidirectional limiting fixation, effectively preventing component displacement. The entire device can be quickly adjusted and fixed on-site, significantly improving construction efficiency and reducing costs. Attached Figure Description

[0012] Figure 1 This is a complete structural schematic diagram of the present invention; Figure 2 This utility model Figure 1 Another perspective structural diagram; Figure 3 This is a schematic diagram of the structure of the short extrusion screw rod and the long extrusion screw rod of this utility model.

[0013] In the picture: 1. Adjustment frame; 2. Steel component mounting groove; 3. Steel component; 4. Threaded slot; 5. Short extrusion screw rod; 6. Long extrusion screw rod; 7. U-shaped locking block; 8. First end clamp; 9. Second end clamp; 10. End clamp limiting rod. Detailed Implementation

[0014] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0015] This utility model provides a technical solution: Please see Figures 1-3 A large-span portal steel frame support structure adjustment and positioning device includes: an adjustment frame 1, with two symmetrically opened steel component mounting slots 2 in its inner cavity; a steel component 3, which is set in the steel component mounting slot 2 and slides in cooperation with the steel component mounting slot 2; threaded slots 4 symmetrically opened at both ends of the adjustment frame 1, penetrating its body; a short extrusion screw rod 5, threadedly connected to the threaded slot 4 on the side closer to the steel component 3; a long extrusion screw rod 6, threadedly connected to the threaded slot 4 on the side away from the steel component 3; a U-shaped locking block 7, which is threadedly connected to the short extrusion screw rod 5 and the long extrusion screw rod 6 respectively, and is located at the end of the adjustment frame 1; a first end clamp 8 and a second end clamp 9, which are slidably connected to the adjustment frame 1; and an end clamp limiting rod 10, which is threadedly connected to the first end clamp 8 and the second end clamp 9 respectively.

[0016] The adjusting frame 1 serves as the core load-bearing foundation. Its inner cavity has two steel component mounting slots 2, which provide installation and sliding paths for the steel component 3. The steel component 3 can move axially along the mounting slots to adapt to the actual splicing size. The threaded slots 4 at both ends of the adjusting frame 1 provide threaded installation support for the short extrusion screw rod 5 and the long extrusion screw rod 6. By rotating the two, their ends are pressed against the side of the steel component 3 to achieve lateral fixation. The U-shaped locking block 7 is installed at the end of the adjusting frame 1 along with the screw rod and forms an auxiliary support directly below the steel component 3. After the first end clamp 8 and the second end clamp 9 slide along the adjusting frame 1 to the target position, the axial limit is completed by tightening the end clamp limiting rod 10 that runs through both sides of it against the adjusting frame 1. Its overall function is to achieve flexible on-site size adjustment of the steel component 3 through the coordinated cooperation of various components, solving the problem of the existing splicing method where the size does not match and needs to be returned to the factory or cut off. At the same time, it forms a stable two-way positioning in both the lateral and axial directions, avoiding component displacement, and eliminating the need for complex welding and dismantling procedures, greatly improving the convenience and efficiency of construction, and reducing material waste and construction costs.

[0017] In some embodiments, the cross-section of the adjustment frame 1 is "mountain" shaped, the steel component mounting groove 2 extends along the length of the adjustment frame 1, and the steel component 3 can slide axially along the steel component mounting groove 2.

[0018] In this embodiment, the "mountain" shaped cross-section of the adjustment frame 1 forms a suitable steel component installation groove 2. The steel component 3 slides axially along the length of the groove, which can flexibly adapt to the on-site splicing size, solve the problem of existing splicing sizes not matching and needing to be returned to the factory or cut off, provide a stable foundation for subsequent fixing, and improve construction flexibility.

[0019] In some embodiments, the ends of both the short extrusion screw 5 and the long extrusion screw 6 abut against the side surface of the steel member 3, and radial extrusion fixation of the steel member 3 is achieved by thread engagement.

[0020] In this embodiment, the short extrusion screw rod 5 and the long extrusion screw rod 6 are rotated so that their ends abut against the side surface of the steel component 3. The radial extrusion force is generated by the screw threads, which realizes the lateral fixation of the steel component 3, prevents displacement during splicing, and enhances the positioning stability in conjunction with other components. This avoids the cumbersome splicing and fixing problems of the past and improves the convenience of construction.

[0021] In some embodiments, the U-shaped locking block 7 is disposed at the end of the adjusting frame 1, and its opening faces the steel member 3 and is located directly below the steel member 3.

[0022] In this embodiment, the U-shaped locking block 7 is installed at the end of the adjusting frame 1, with its opening facing the steel component 3 and located directly below it. As the short extrusion screw rod 5 and the long extrusion screw rod 6 are tightened, it fits against the bottom of the steel component 3, playing an auxiliary support and reinforcement role. Together with the screw rod, it enhances the lateral fixing stability, prevents the steel component 3 from shifting, improves the reliability of splicing positioning, and reduces construction risks.

[0023] In some embodiments, the first end clamp 8 and the second end clamp 9 are both integrally formed steel ring components, sleeved on the outside of the adjustment frame 1.

[0024] In this embodiment, the first end hoop 8 and the second end hoop 9 are integrally formed steel rings, which are sleeved on the outside of the adjustment frame 1. They can slide along the adjustment frame to the corresponding position at the end of the steel component 3, and are fixed in conjunction with the end hoop limiting rod to achieve end limiting and fixing, avoid axial displacement of the steel component, strengthen the splicing firmness, eliminate the need for complicated procedures, and improve construction stability and efficiency.

[0025] In some embodiments, the end clamp limiting rods 10 are respectively disposed on both sides of the first end clamp 8 and the second end clamp 9, and pass through the corresponding end clamps to abut against the adjusting frame 1.

[0026] In this embodiment, the end hoop limiting rod 10 is provided on both sides of the first end hoop 8 and the second end hoop 9, passes through the end hoop and abuts against the adjusting frame 1. When the end hoop slides to the corresponding position of the steel component 3, it is tightened to fix the end hoop, realize the axial limitation of the steel component 3, prevent its displacement, and strengthen the splicing firmness in conjunction with other components, simplify construction and improve efficiency.

[0027] In practical use, the working principle of this utility model is as follows: The two steel components 3 to be spliced ​​are slidably embedded into the two steel component mounting slots 2 corresponding to the "mountain"-shaped cross-section of the adjusting frame 1. Utilizing the sliding fit between the steel components 3 and the mounting slots 2, the relative axial position of the two steel components 3 can be flexibly adjusted according to the actual size requirements of the steel components 3 at the construction site. This eliminates the need for scrapping or returning to the factory due to fixed lengths, as is the case with traditional bevel welding, and also avoids the need for disassembly, cutting, or complete replacement of components when dimensions do not match, as is the case with node plate connections. This fundamentally avoids waste of materials and labor. Once the steel components 3 are adjusted to the splicing position that meets the design requirements, the short compression screw rod 5 and the long compression screw rod 6 are tightened through the symmetrically opened threaded slots 4 at both ends of the adjusting frame 1. This ensures that the ends of both screw rods are in close contact with the sides of the steel components 3, generating a stable compression force. This achieves lateral positioning and fixation of the steel components 3, preventing lateral displacement during splicing. Meanwhile, the U-shaped locking block 7, threaded onto the short extrusion screw rod 5 and the long extrusion screw rod 6, is located at the end of the adjusting frame 1 and directly below the steel component 3. During the tightening of the short extrusion screw rod 5 and the long extrusion screw rod 6, it simultaneously provides downward support and auxiliary fixation to the steel component 3, further enhancing the lateral stability of the steel component 3. Subsequently, the first end hoop 8 and the second end hoop 9, made of integrally molded steel hoops, are slid along the adjusting frame 1 to the corresponding fixed positions at the ends of the steel component 3. By tightening the end hoop limiting rods 10 that pass through both sides of the first end hoop 8 and the second end hoop 9, the first end hoop 8 and the second end hoop 9 are firmly clamped to the adjusting frame 1 and the steel component 3, achieving axial limitation of the steel component 3 and preventing axial displacement during subsequent construction or use, thus ensuring the overall robustness of the spliced ​​structure. The entire operation can be completed quickly on the construction site without complicated welding or disassembly procedures. It can flexibly adapt to the splicing requirements of steel components of different sizes, and can efficiently achieve precise positioning and stable fixation, which greatly shortens the construction cycle and reduces construction costs. It effectively solves the limitations of existing splicing methods in terms of size adaptability and on-site adjustment capabilities.

[0028] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A large-span portal steel frame support structure adjustment and positioning device, characterized in that, comprising: an adjustment frame (1), two steel member mounting grooves (2) being symmetrically opened in an inner cavity thereof; steel members (3), each arranged in the corresponding steel member mounting groove (2) and in sliding fit with the steel member mounting groove (2); two threaded slot holes (4) penetrating through the body of the adjustment frame (1) are symmetrically opened at two ends of the adjustment frame (1); short extruding screw rods (5), each threadedly connected in the threaded slot hole (4) on the side close to the corresponding steel member (3); long extruding screw rods (6), each threadedly connected in the threaded slot hole (4) on the side away from the corresponding steel member (3); U-shaped clamping blocks (7), each threadedly connected with the corresponding short extruding screw rod (5) and the corresponding long extruding screw rod (6) and located at the end of the adjustment frame (1); a first end hoop (8) and a second end hoop (9), which are slidably connected to the adjustment frame (1); end hoop limiting rods (10), each threadedly connected with the corresponding first end hoop (8) and the corresponding second end hoop (9).

2. The large-span portal steel frame support structure adjustment and positioning device according to claim 1, characterized in that: The cross section of the adjustment frame (1) is in a "hill" shape, the steel member mounting grooves (2) extend along the length direction of the adjustment frame (1), and the steel members (3) can slide axially along the steel member mounting grooves (2).

3. The large-span portal steel frame support structure adjustment and positioning device according to claim 1, characterized in that: The ends of each of the short extruding screw rods (5) and the long extruding screw rods (6) abut against the side surface of the corresponding steel member (3), and radial extrusion fixation of the steel member (3) is realized through threaded screwing.

4. The large-span portal steel frame support structure adjustment and positioning device according to claim 1, characterized in that: The U-shaped clamping blocks (7) are arranged at the ends of the adjustment frame (1), with their openings facing the steel members (3) and located directly below the steel members (3).

5. The large-span portal steel frame support structure adjustment and positioning device according to claim 1, characterized in that: The first end hoop (8) and the second end hoop (9) are both integrally formed steel annular members, which are sleeved on the outside of the adjustment frame (1).

6. The large-span portal steel frame support structure adjustment and positioning device according to claim 1, characterized in that: The end hoop limiting rods (10) are respectively arranged on both sides of the first end hoop (8) and the second end hoop (9), penetrate through the corresponding end hoops and abut against the adjustment frame (1).

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