Building steel structure keel connecting structure

By setting annular grooves and positioning shafts on the steel keel of the building for preliminary calibration, combined with the design of angle adjustment holes, clamps, and locking rods, flexible multi-angle erection and rapid docking are achieved, solving the problems of cumbersome keel connection and poor applicability in the existing technology, and improving the flexibility and applicability of keel connection.

CN224213618UActive Publication Date: 2026-05-08CHONGQING HANFANG STEEL STRUCTURE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HANFANG STEEL STRUCTURE
Filing Date
2025-05-06
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing threaded connection method for steel structure keel in buildings is cumbersome and cannot meet the needs of multi-angle erection, resulting in poor applicability.

Method used

The design incorporates a combination of annular groove and positioning shaft for initial calibration, along with an angle adjustment socket, clamping plate, and locking rod, enabling flexible multi-angle installation. The clamping plate and locking rod work together to limit and fix rotation, facilitating rapid docking.

Benefits of technology

It improves the flexibility and versatility of keel connections, is suitable for multi-angle erection needs, provides more complex combination methods, and adapts to more diverse erection environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224213618U_ABST
    Figure CN224213618U_ABST
Patent Text Reader

Abstract

The utility model discloses a building steel structure keel connecting structure which comprises a first steel frame, a second steel frame is erected on the right side of the first steel frame, an annular groove is formed in the center of the left side of the first steel frame, a positioning shaft is arranged in the annular groove in a left-right sliding fit mode, and the right end of the positioning shaft is fixedly connected with the second steel frame. A plurality of first angle adjusting insertion holes and second angle adjusting insertion holes are formed in the centers of the opposite sides of the first steel frame and the second steel frame in an annular array mode correspondingly, a clamping plate is erected on the left sides of the first angle adjusting insertion holes, and locking rods are fixed to the right side of the clamping plate in a longitudinal symmetry mode; the lock rods rightwards penetrate through the first angle-adjusting insertion holes and the second angle-adjusting insertion holes, and the right ends of the lock rods vertically penetrate through the bolt plates in a sliding fit mode, so that the multi-angle erecting requirements of different keels are met, the butt joint flexibility and comprehensiveness are improved, a more complex combination mode is provided, and the multi-angle erecting device is applied to more diversified erecting environments.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building keel technology, and in particular to a building steel structure keel connection structure. Background Technology

[0002] Keel, or keel, is a building material used to support shapes and fix structures. It is widely used in hotels, passenger stations, train stations, theaters, shopping malls, factories, interior decoration, ceilings, and other places. Keel serves as the framework and base material of a building structure and is very common. There are many types of keels. Based on the materials used, they can be divided into wood keels, light steel keels, aluminum alloy keels, steel keels, etc. Based on their application, they can also be divided into ceiling keels, wall keels, floor keels, and hanging keels, etc.

[0003] The application of steel structure keel is quite common, and it is often fixed to different sizes and shapes by threaded connection. However, conventional threaded fixing method requires a lot of bolts, and disassembly and assembly are cumbersome. Moreover, when existing keels are connected to each other, the reserved docking holes are mostly opened in fixed positions, and the angle after docking is mostly only vertical or horizontal, which cannot meet the multi-angle erection needs of keels between different buildings, and the applicability is poor. Utility Model Content

[0004] The purpose of this utility model is to provide a building steel structure keel connection structure that can flexibly erect steel frames at multiple angles and perform rotation limit fixation to complete rapid docking. This is suitable for the multi-angle erection needs between different keels, improves the flexibility and comprehensiveness of its docking, provides more complex combination methods, and can be applied to more diverse erection environments.

[0005] To achieve the above objectives, a steel frame connection structure for buildings is provided, comprising: a first steel frame, a second steel frame mounted on the right side of the first steel frame, an annular groove formed at the center of the left side of the first steel frame, a positioning shaft slidingly fitted within the annular groove, the right end of the positioning shaft being fixedly connected to the second steel frame, and a plurality of first and second angle-adjusting holes arranged in a circular array at the center of opposite sides of the first and second steel frames, a retaining plate mounted on the left side of the first angle-adjusting holes, and locking rods symmetrically fixed vertically on the right side of the retaining plate, each locking rod penetrating to the right through the first and second angle-adjusting holes and having a pin plate slidingly fitted at its right end, the top of the pin plate being fitted with a torsion spring retaining ring, and the locking rods... On the opposite side of the right end, anti-reverse grooves are provided. The torsion spring retaining rings are correspondingly rotated and fitted into the anti-reverse grooves and locked with the locking rod. The initial calibration and combination are achieved by setting an annular groove and positioning shaft at the center position of the first steel frame and the second steel frame. On this basis, several first and second angle adjustment holes are respectively arranged in a circular array for multi-angle combination distribution. This ensures that the angle adjustment holes can maintain corresponding continuity after the two steel frames are flexibly erected at multiple angles. Then, the set retaining plate and locking rod can be used to rotate and limit the two steel frames to fix them, and complete the quick docking. This is suitable for multi-angle erection needs between different keels, improves the flexibility and comprehensiveness of its docking, provides more complex combination methods, and can be applied to more diverse erection environments.

[0006] According to the aforementioned steel frame keel connection structure, side plates are symmetrically fixed on opposite sides of the first and second steel frames. On opposite sides of each side plate, interlocking rods and holes are staggered vertically. The interlocking rods and holes are symmetrically distributed horizontally. Locking buckles are fixedly connected to one side of each interlocking hole in the front-rear direction. The interlocking rods extend into the corresponding interlocking holes and engage with the locking buckles for fixation. This facilitates the extension and connection of the steel frames.

[0007] According to the aforementioned steel frame connection structure for buildings, both the upper and lower opposite sides of the side panels are covered with a corrosion-resistant coating. This prevents environmental corrosion from causing a decrease in the strength of the side panels.

[0008] According to the aforementioned steel structure keel connection structure, an anti-slip pad is fixedly attached to the left side of the clamping plate. This provides anti-slip protection during the locking and connection process using the clamping plate, ensuring stable pressing and limiting.

[0009] According to the aforementioned steel structure keel connection structure, the inner side of the anti-reverse groove is filled with rubber, and the right side of the rubber is pressed and fitted against the torsion spring retaining ring. This provides buffer protection during the torsion spring retaining ring's torsional reset, preventing it from rapidly rebounding into the anti-reverse groove and causing high-speed collision damage with the locking rod.

[0010] According to the aforementioned steel structure keel connection structure, the outer edge of the right end of the locking rod is rounded, and elastic washers are embedded and fixed on the rounded corner surfaces. This facilitates flexible insertion and avoids edge damage caused by hard impacts.

[0011] The above-mentioned solution has the following beneficial effects:

[0012] In this invention, an annular groove and a positioning shaft are set at the center of the first and second steel frames for initial calibration and assembly. Based on this, several first and second angle adjustment holes are arranged in a circular array for multi-angle combination distribution. This ensures that the angle adjustment holes can maintain corresponding continuity after the two steel frames are flexibly erected at multiple angles. Then, the two steel frames can be rotated and fixed by the set clamp plate and locking rod to complete the quick docking. This is suitable for multi-angle erection needs between different keels, improves the flexibility and comprehensiveness of its docking, provides more complex combination methods, and can be applied to more diverse erection environments.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the connection structure between the first steel frame and the second steel frame in a steel structure keel connection structure of a building according to the present invention;

[0016] Figure 2 This is a schematic diagram showing the distribution of the butt joint rods and butt joint holes in a steel structure keel connection structure of a building according to this utility model;

[0017] Figure 3 This is a schematic diagram of the docking transformation between the first steel frame and the second steel frame in a steel structure keel connection structure of a building according to the present invention;

[0018] Figure 4 This is a schematic diagram of a linear combination of a steel structure keel connection structure according to the present invention.

[0019] Legend:

[0020] 1. First steel frame; 2. Second steel frame; 3. Ring groove; 4. Positioning shaft; 5. First angle adjustment socket; 6. Second angle adjustment socket; 7. Clamping plate; 8. Locking rod; 9. Pin plate; 10. Torsion spring retaining ring; 11. Anti-reverse retaining groove; 12. Side plate; 13. Connecting rod; 14. Connecting hole; 15. Locking buckle. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model embodiment provides a steel structure keel connection structure for buildings, including: a first steel frame 1, a second steel frame 2 erected on the right side of the first steel frame 1, an annular groove 3 opened at the center of the left side of the first steel frame 1, a positioning shaft 4 slidingly engaged in the annular groove 3, the right end of the positioning shaft 4 being fixedly connected to the second steel frame 2, and a plurality of first angle adjustment holes 5 and second angle adjustment holes 6 respectively arranged in a circular array at the center of the opposite side of the first steel frame 1 and the second steel frame 2. The annular groove and the positioning shaft are arranged at the center of the first steel frame and the second steel frame for preliminary calibration and combination. On this basis, a plurality of first angle adjustment holes and second angle adjustment holes are arranged in a circular array for multi-angle combination distribution to ensure that the two steel frames can maintain the corresponding connection of the angle adjustment holes after being flexibly erected at multiple angles, and to reserve the foundation for angle change.

[0023] A locking plate 7 is mounted on the left side of the first angle-adjusting socket 5. An anti-slip pad is fixed to the left side of the locking plate 7. Locking rods 8 are symmetrically fixed on the right side of the locking plate 7. The locking rods 8 pass through the first angle-adjusting socket 5 and the second angle-adjusting socket 6 to the right, and the right end of the locking rods 8 slides through and is engaged with a pin plate 9. A torsion spring retaining ring 10 is mounted on the top of the pin plate 9. A backstop groove 11 is opened on the opposite side of the right end of the locking rods 8. The torsion spring retaining ring 10 is rotated and fitted into the backstop groove 11 and locked with the locking rod 8. The inner side of the backstop groove 11 is filled with rubber, and the right side of the rubber is pressed and fitted with the torsion spring retaining ring 10. The outer edge of the right end of the locking rods 8 is rounded, and elastic washers are fitted and fixed on the rounded corner surfaces. The locking plate and locking rods are used to rotate and limit the two steel frames, and complete the quick docking. This is suitable for multi-angle erection needs between different keels, improves the flexibility and comprehensiveness of the docking, provides more complex combination methods, and can be applied to more diverse erection environments.

[0024] On opposite sides of the first steel frame 1 and the second steel frame 2, side plates 12 are symmetrically fixed vertically. On opposite sides of the side plates 12, docking rods 13 and docking holes 14 are staggered vertically. The docking rods 13 and docking holes 14 are symmetrically distributed horizontally. On opposite sides of the docking holes 14, latches 15 are fixedly connected. The docking rods 13 extend into the docking holes 14 and engage with the latches 15. The opposite sides of the side plates 12 are covered with a corrosion-resistant coating to facilitate the extension and docking of the steel frames.

[0025] Working principle: In this utility model, an annular groove 3 and a positioning shaft 4 are set at the center of the first steel frame 1 and the second steel frame 2 for initial calibration and combination. On this basis, several first angle adjustment holes 5 and second angle adjustment holes 6 are respectively arranged in a circular array for multi-angle combination distribution. This ensures that the two steel frames can maintain the corresponding connection of the angle adjustment holes after flexible multi-angle erection. Then, the two steel frames can be rotated and fixed by the set card plate 7 and locking rod 8 to complete the quick docking. This is suitable for multi-angle erection needs between different keels, improves the flexibility and comprehensiveness of its docking, provides more complex combination methods, and can be applied to more diverse erection environments.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A steel frame connection structure for buildings, comprising: The first steel frame (1) is characterized in that a second steel frame (2) is mounted on the right side of the first steel frame (1), and an annular groove (3) is provided at the center of the left side of the first steel frame (1). A positioning shaft (4) is slidably fitted in the annular groove (3), and the right end of the positioning shaft (4) is fixedly connected to the second steel frame (2). Several first angle adjustment holes (5) and second angle adjustment holes (6) are respectively arranged in a circular array at the center of the opposite side of the first steel frame (1) and the second steel frame (2). A card plate (7) is mounted on the left side of the locking rod (8). A locking rod (8) is symmetrically fixed on the right side of the card plate (7). The locking rod (8) passes through the first angle adjustment hole (5) and the second angle adjustment hole (6) to the right, and a pin plate (9) is slidably fitted on its right end. A torsion spring retaining ring (10) is mounted on the top of the pin plate (9). A backstop groove (11) is opened on the opposite side of the right end of the locking rod (8). The torsion spring retaining ring (10) rotates and fits into the backstop groove (11) and engages with the locking rod (8).

2. The steel frame connection structure for building structures according to claim 1, characterized in that, The first steel frame (1) and the second steel frame (2) are symmetrically fixed with side plates (12) on opposite sides. The side plates (12) are staggered with docking rods (13) and docking holes (14) on opposite sides. The docking rods (13) and docking holes (14) are symmetrically distributed in the left and right directions. The docking holes (14) are fixedly connected with latches (15) on one side in the front and back directions. The docking rods (13) extend into the docking holes (14) and are engaged and fixed with the latches (15).

3. The steel frame connection structure for building structures according to claim 2, characterized in that, The side panels (12) are covered with corrosion-resistant coatings on opposite sides.

4. The steel frame connection structure for buildings according to claim 1, characterized in that, An anti-slip pad is attached and fixed to the left side of the card plate (7).

5. A steel frame connection structure for buildings according to claim 1, characterized in that, The inner side of the anti-reverse groove (11) is filled with rubber, and the right side of the rubber is pressed and adhered to the torsion spring retainer (10).

6. The steel frame connection structure for buildings according to claim 1, characterized in that, The outer edge of the right end of the locking rod (8) is rounded, and elastic washers are fitted and fixed on the rounded corner surfaces.