Building steel structure keel connecting structure
The groove and limit structure design of the double keel docking fixing piece solves the problems of low keel connection strength and installation efficiency in the prior art, and ensures the integrity and rapid installation of the keel.
Patent Information
- Application Number
- CN202422339722.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing building steel structure keel connection structure requires opening through holes or threaded holes on the keel in a cross manner, which damages the integrity and strength of the keel. In addition, the fixing plate is an independent component, resulting in insufficient connection support strength and low installation efficiency.
Double keel docking fixings are adopted, and the groove design allows the keel to be snapped in and fixed. The limited fixing structure and bolt connection avoid opening holes on the keel, achieving overall fixation and quick installation.
Ensure the strength and integrity of the keel, enhance the connection support strength, and improve installation efficiency, achieving fast and convenient connection and fixation.
Smart Images

Figure CN223343608U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building steel structures, in particular to a building steel structure keel connection structure. Background Art
[0002] A building keel is a material used to support the shape and secure the structure. It is widely used in hotels, airport terminals, passenger stations, train stations, theaters, shopping malls, factories, office buildings, old building renovations, interior decoration installations, ceilings, and other places. The keel is the skeleton and base material of the decoration. It is very common. There are many types of keels. Depending on the manufacturing material, they can be divided into wooden keels, light steel keels, aluminum alloy keels, steel keels, etc. According to the location of use, they can be divided into ceiling keels, vertical wall keels (partition keels), floor keels, and suspension keels. Depending on the decoration construction process, there are also load-bearing and non-load-bearing keels.
[0003] The main methods of connecting the existing steel structure keels are as follows (see the attached manual). Figure 6 and instructions attached Figure 7 As shown in the figure): keels A and B are stacked together in a cross shape, and four fixing plates C are placed at the four L-shaped corners between keels A and B. The four fixing plates C are then fixed to keels A and B respectively with bolts. This method has the following disadvantages:
[0004] 1) It is necessary to open through holes or threaded holes on keels A and B, which will damage the integrity and strength of keels A and B;
[0005] 2) The four fixing plates C are independent components rather than a whole, thus causing deviation in the support strength of the connection between keels A and B;
[0006] 3) Holes are provided on the fixing plate C and the keels A and B, respectively. Therefore, when bolts are used to fix the fixing plate C and the keels A and B, the holes need to be aligned, which results in low installation efficiency. Utility Model Content
[0007] In view of the problems existing in the existing building steel structure keel connection structure, the present utility model is proposed.
[0008] Therefore, the purpose of the present invention is to provide a building steel structure keel connection structure, which solves the problem that keels A and B are stacked together in a cross manner, and four fixing plates C are respectively placed at the four L-shaped corners between keels A and keel B, and then the four fixing plates C are respectively fixed to keels A and keel B by bolts. This method requires the opening of through holes or threaded holes on keels A and keel B, which will damage the integrity and strength of keels A and keel B; the four fixing plates C are independent components rather than a whole, so the connection support strength between keels A and keel B is deviated; holes are respectively provided on the fixing plates C and keels A and keel B, so when bolts are used to fix the fixing plates C and keels A and keel B, the holes need to be aligned, which leads to low installation efficiency.
[0009] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:
[0010] A building steel structure keel connection structure comprises a double-keel butt-jointed fixing piece, wherein the double-keel butt-jointed fixing piece is provided with two grooves, and two keels can be respectively inserted into the two grooves.
[0011] As a preferred solution of the building steel structure keel connection structure described in the utility model, a limited fixing structure is provided on the double keel butt fixing piece, and the double keel butt fixing piece and the two keels are fixed under the existence of the limited fixing structure.
[0012] As a preferred solution of the building steel structure keel connection structure described in the utility model, the limiting fixing structure includes a pair of first internal threaded holes located at the top of the double keel butt fixing piece, and a bolt is provided at the top of the double keel butt fixing piece.
[0013] As a preferred solution of the building steel structure keel connection structure described in the utility model, the two grooves intersect with each other, and the angle between the two grooves is any angle.
[0014] As a preferred solution of a building steel structure keel connection structure described in the utility model, the two grooves are respectively set as a first groove and a second groove, the depth between the bottom wall of the second groove and the bolt is the sum of the thicknesses of the two keels, and the depth between the bottom wall of the first groove and the bolt is the thickness of the keel located above.
[0015] As a preferred solution of the building steel structure keel connection structure described in the utility model, four L-shaped parts are formed on the double keel docking fixing piece, and the four L-shaped parts are respectively located at the four corners of the two keels stacked together in a cross manner.
[0016] As a preferred solution of a building steel structure keel connection structure described in the utility model, the limiting fixing structure includes a fixing block integrally formed with a double keel docking fixing piece, a second internal threaded hole is opened on the fixing block, and the bolt is arranged on two adjacent fixing blocks.
[0017] Compared with existing technologies:
[0018] 1. Use double keel docking fixtures to fix the two keels, which ensures sufficient contact with the keels and forms an integral structure, thus providing better support and fixation for the two keels;
[0019] 2. There is no need to open through holes or internal thread holes on the keel, which will not cause damage to the keel, thus ensuring the strength and integrity of the keel;
[0020] 3. By installing bolts on the double keel butt fixings, the two holes for the bolts to pass through on the double keel butt fixings have been aligned, so the installation of the bolts is more convenient without the need for hole alignment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of Example 1 of the present utility model;
[0022] Figure 2 A top view of the double-keel docking fixture provided in Example 1 of the present utility model;
[0023] Figure 3 A three-dimensional diagram of a double-keel docking fixture provided in Example 1 of the present utility model;
[0024] Figure 4 A top view of a double-keel butt-jointed fixing member provided in Example 2 of the present utility model;
[0025] Figure 5 A three-dimensional diagram of a double-keel docking fixture provided in Example 2 of the present utility model;
[0026] Figure 6 A schematic diagram of the connection structure between the keels provided by the utility model;
[0027] Figure 7 Schematic diagram of four fixing pieces C used to fix two keels provided by the present invention. In the figure: double keel butt fixing piece 100, first groove 101, second groove 102, L-shaped portion 103, first internal threaded hole 104, fixing block 105, second internal threaded hole 1051, bolt 200. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
[0029] Example 1:
[0030] The utility model provides a building steel structure keel connection structure, please refer to Figure 1-3 , including a double-keel docking fixture 100, which has two grooves, the two grooves intersecting with each other, and forming an angle between the two grooves at any angle, so that two keels can be respectively inserted into the two grooves; the two grooves are respectively set as a first groove 101 and a second groove 102, the depth between the bottom wall of the second groove 102 and the bolt 200 is the sum of the thicknesses of the two keels, and the depth between the bottom wall of the first groove 101 and the bolt 200 is the thickness of the keel located above;
[0031] like Figure 3 As shown, the first groove 101 and the second groove 102 are stacked together in a "cross" manner, which can connect the two keels stacked together in a "cross" manner; if it is necessary to fix two "X"-shaped keels, the two grooves are distributed in an "X" row.
[0032] The double-keel butt-joint fixing member 100 is provided with a limited position fixing structure. With the presence of the limited position fixing structure, the double-keel butt-joint fixing member 100 and the two keels are fixed to each other.
[0033] The limiting fixing structure includes a pair of first internal threaded holes 104 located at the top of the double-keel docking fixing piece 100, and a bolt 200 is provided at the top of the double-keel docking fixing piece 100; during installation, there is no need to open a through hole or internal threaded hole on the keel, so that the keel will not be damaged, thereby ensuring the strength and integrity of the keel; and the positions of the two first internal threaded holes 104 for the bolts 200 to pass through are fixed, so it is convenient to quickly pass the bolts 200, thereby enabling rapid installation and improving installation and connection efficiency.
[0034] Four L-shaped portions 103 are formed on the double-keel docking fixing piece 100. The four L-shaped portions 103 are respectively located at the four corners of the two keels stacked together in a cross manner. The outer walls of the two keels can fully fit with the double-keel docking fixing piece 100, thereby providing better support for the two keels.
[0035] During actual use, the two keels are stacked together and buckled into the first groove 101 and the second groove 102 respectively, and then the bolt 200 is installed on the double keel docking fixture 100, and the bolt 200 is attached to the upper keel to limit and fix the keel.
[0036] Example 2:
[0037] Refer to the attached Figure 4-5 , different from Example 1: the limiting fixing structure includes a fixing block 105 integrally formed with the double keel docking fixing piece 100, and a second internal threaded hole 1051 is opened on the fixing block 105, and the bolt 200 is set on two adjacent fixing blocks 105; at this time, as in Example 1, the depth between the bottom wall of the second groove 102 and the bolt 200 is the sum of the thicknesses of the two keels, and the depth between the bottom wall of the first groove 101 and the bolt 200 is the thickness of the keel located above, which can save materials.
[0038] During actual use, the two keels are stacked together and buckled into the first groove 101 and the second groove 102 respectively, and then the bolt 200 is installed on the fixing block 105, and the bolt 200 is attached to the upper keel to limit and fix the keel.
[0039] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.
Claims
1. A building steel structure keel connection structure, characterized by: The double-keel butt-jointed fixing piece (100) is provided with two grooves, and two keels can be respectively inserted into the two grooves.
2. A building steel structure keel connection structure according to claim 1, characterized in that: A limited position fixing structure is provided on the double-keel butt-jointed fixing piece (100), and the double-keel butt-jointed fixing piece (100) and the two keels are fixed to each other due to the presence of the limited position fixing structure.
3. A building steel structure keel connection structure according to claim 2, characterized in that: The position limiting fixing structure comprises a pair of first internal threaded holes (104) located at the top end of the double-keel butt-jointed fixing piece (100), and a bolt (200) is provided at the top end of the double-keel butt-jointed fixing piece (100).
4. A building steel structure keel connection structure according to claim 3, characterized in that: The two grooves intersect, and an angle of any angle is formed between the two grooves.
5. The building steel structure keel connection structure according to claim 4, characterized in that: The two grooves are respectively set as a first groove (101) and a second groove (102), the depth between the bottom wall of the second groove (102) and the bolt (200) is the sum of the thicknesses of the two keels, and the depth between the bottom wall of the first groove (101) and the bolt (200) is the thickness of the keel located above.
6. A building steel structure keel connection structure according to any one of claims 1 to 5, characterized in that: Four L-shaped portions (103) are formed on the double-keel butt-jointed fixing piece (100), and the four L-shaped portions (103) are respectively located at the four corners of the two keels stacked together in a cross manner.
7. The building steel structure keel connection structure according to claim 5, characterized in that: The position-limiting fixing structure comprises a fixing block (105) integrally formed with the double-keel docking fixing piece (100), a second internal threaded hole (1051) is provided on the fixing block (105), and the bolt (200) is arranged on two adjacent fixing blocks (105).