A building extension ridge connection and fixing structure

Abstract

This utility model discloses a roof ridge connection and fixing structure for building expansion, relating to the field of building expansion. It includes a ridge beam and a reinforcing beam. A reinforcing beam is fixedly connected to the bottom of the ridge beam, and several supporting structures are fixedly connected at equal intervals along a straight line on the reinforcing beam for supporting the roof sloping beam. Each supporting structure includes a crossbeam and two support frames symmetrically distributed around the reinforcing beam. The advantages are: the two V-shaped support frames symmetrically distributed around the reinforcing beam are installed at both ends of the crossbeam via a rotating connection, allowing for flexible adjustment of the support angle according to the actual angle of the roof sloping beam, eliminating the need to replace support components due to changes in the sloping beam angle. An extension rod at one end of the support frame increases the contact area with the roof sloping beam, ensuring more stable support; the adjustable-length top support component at the other end can precisely adjust the top support force on the bottom of the reinforcing beam, making the supporting structure and the reinforcing beam form a tightly integrated force-bearing structure, optimizing the force transmission path.

Description

Technical Field

[0001] This utility model relates to the field of building expansion technology, specifically to a roof ridge connection and fixing structure for building expansion. Background Technology

[0002] In the fields of building expansion and reinforcement of old buildings, the ridge, as the core connection point of the roof structure, is crucial to ensuring the overall structural stability through the safety and reliability of its connection and fixation. my country has established a relatively complete technical system in the field of old building renovation and reinforcement, with several key technologies providing support for structural connection reinforcement. For example, the high-strength grouting material developed by Tsinghua University improves the bond strength of beams with enlarged cross-sections, providing a reference for the coordinated stress distribution between new and old structures. Traditionally, ridge connections in buildings typically rely solely on the ridge beam itself for load-bearing, or use simple crossbeams directly overlapping to support the roof's inclined beams, lacking specialized reinforcement and adaptation structures. With the increased roof load after expansion, the original ridge beams are prone to bending and deformation due to concentrated stress, severely affecting structural stability. Meanwhile, the angles of the sloping beams vary across different extended roofs. Traditional support structures are mostly designed with fixed angles, which cannot be flexibly adjusted to adapt to different sloping beam gradients, resulting in poor support performance. The contact points between the sloping beams and the support structure are prone to wear or loosening due to uneven stress. In addition, the existing support structure is mostly connected to the ridge beam using a single fixed method, which is prone to loosening of the connection nodes after long-term use, making it difficult to effectively distribute and transmit the downward pressure of the sloping beams, thus posing a potential safety hazard to the roof structure. Utility Model Content

[0003] The purpose of this utility model is to provide a fixed structure for connecting and fixing the roof ridge of a building extension in order to solve the above problems, as detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a roof ridge connection and fixing structure for building expansion, including a ridge beam and a reinforcing beam. The bottom of the ridge beam is fixedly connected to the reinforcing beam, and several supporting structures are fixedly connected at equal intervals along a straight line on the reinforcing beam for supporting the roof sloping beam. The supporting structure includes a crossbeam and two support frames symmetrically distributed around the reinforcing beam. The two support frames are rotatably connected to both ends of the crossbeam. The support frame is V-shaped, with an extension rod at one end for supporting the roof beams and an adjustable-length top support assembly at the other end for supporting the bottom of the reinforcing beams.

[0005] The above-mentioned building extension ridge connection and fixing structure firstly fixes the reinforcing beam along the length of the ridge beam at the bottom of the ridge beam to reinforce it. Then, several supporting structures are installed on the reinforcing beam in sequence. The support frame of the supporting structure further supports the sloping beam, and the downward pressure of the sloping beam on the support frame can be converted into an upward thrust on the crossbeam and the reinforcing beam.

[0006] Preferably, the end face of the reinforcing beam is an inverted U-shape, and the reinforcing beam is fixedly connected to the ridge beam by a number of bolts.

[0007] Preferably, the reinforcing beam is centrally fixed to the bottom of the ridge beam, and the width of the reinforcing beam is smaller than that of the ridge beam.

[0008] Preferably, the support structure includes a fixing block, which is clearance-fitted with the inner wall of the reinforcing beam. The fixing block is fixedly connected to the reinforcing beam by two bolts, and the crossbeam is fixedly connected to the fixing block.

[0009] Preferably, the crossbeam is connected to the reinforcing beam via a snap-fit ​​assembly.

[0010] Preferably, the snap-fit ​​assembly includes two L-shaped rods fixedly connected to the crossbeam, and the reinforcing beam has several L-shaped slots on both sides corresponding to the L-shaped rods, and the L-shaped rods are inserted into the L-shaped slots.

[0011] Preferably, the top support assembly includes a screw rod that is threadedly connected to the support frame and is arranged along the length of one side lever arm of the support frame. A support head is fixedly connected to the screw rod and corresponds to the bottom of the crossbeam.

[0012] Preferably, the extension rod is an extension of one end of the support frame and is integral with the support frame.

[0013] Preferably, the bottom of the fixing block is provided with a groove, and the crossbeam is fitted with the groove with a clearance.

[0014] Preferably, the side of the reinforcing beam is fixedly connected to the ridge beam by several fixing plates.

[0015] The beneficial effects are: 1. The support structure consists of two V-shaped support frames symmetrically positioned around the reinforcing beam. These frames are installed at both ends of the crossbeam via a rotating connection, allowing for flexible adjustment of the support angle according to the actual angle of the roof beam, eliminating the need to replace support components due to changes in the beam's angle. An extension rod at one end of the support frame increases the contact area with the roof beam, ensuring greater stability. The adjustable-length top support component at the other end precisely adjusts the support force on the bottom of the reinforcing beam, creating a tightly integrated force-bearing structure between the support structure and the reinforcing beam, thus optimizing the force transmission path.

[0016] 2. The V-shaped support frame design transforms the downward pressure from the roof's sloping beams into an upward thrust on the crossbeams and reinforcing beams. Combined with the supporting components' jacking effect on the reinforcing beams, this creates a multi-directional force balance, preventing damage to the support structure due to excessive unidirectional stress. The symmetrically distributed support frames ensure even stress distribution on both sides of the reinforcing beams, further enhancing the stability of the entire ridge connection structure and reducing the risk of loose joints and component wear. 3. The reinforcing beam adopts an inverted U-shaped structure and is fixed to the ridge beam with bolts. Combined with additional fixing plates on the sides, it forms a triangular stable support system, significantly enhancing the ridge beam's bending resistance and overall rigidity. This evenly distributes the new roof load to the existing structure, effectively preventing bending deformation and loosening of joints due to concentrated stress, ensuring the long-term structural safety of the ridge connection. The support structure is bolted to the reinforcing beam using fixing blocks, and double-fixed by the interlocking of L-shaped rods and L-shaped grooves. This ensures the support components and the reinforcing beam form a solid whole, preventing displacement or loosening under long-term pressure from the inclined beam, further improving the structural reliability of the ridge connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a front view structural diagram of the present invention; Figure 4 This is a schematic diagram of a partial three-dimensional structure of the reinforcing beam of this utility model; Figure 5 This is a three-dimensional structural diagram of the support structure of this utility model; Figure 6 This is a schematic diagram of the three-dimensional structure of the reinforcing beam of this utility model.

[0019] The annotations in the attached figures are explained as follows: 1. Ridge beam; 2. Reinforcing beam; 3. Support structure; 4. Bolt 1; 5. Fixing plate; 6. Clip assembly; 7. Crossbeam; 8. Support frame; 9. Top support assembly; 10. Fixing block; 11. Bolt 2; 12. L-shaped rod; 13. L-shaped groove; 14. Support head; 15. Screw; 16. Extension rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] See Figures 1-6 As shown, this utility model provides a roof ridge connection and fixing structure for building expansion, including a ridge beam 1 and a reinforcing beam 2. The reinforcing beam 2 is fixedly connected to the bottom of the ridge beam 1. Several support structures 3 are fixedly connected at equal intervals along a straight line on the reinforcing beam 2 for supporting the roof sloping beam. The support structure 3 includes a crossbeam 7 and two support frames 8 symmetrically distributed around the reinforcing beam 2. The two support frames 8 are rotatably connected to both ends of the crossbeam 7. The rotatable connection between the support frame 8 and the crossbeam 7 adopts a high-strength pin connection structure. Two parallel ear plates 17 are symmetrically welded to both ends of the crossbeam 7. The ear plates 17 are made of Q355B high-strength steel plate with a thickness of not less than 8mm. A through hole with a diameter matching the pin is opened in the center. The pin 19 adopts a shoulder limiting design at both ends and an annular groove is opened near the end. During assembly, the elastic retaining ring 21 is embedded in the groove to achieve axial fixation and prevent the pin from axially moving during rotation.

[0022] The clearance between the pin and the through hole of the ear plate is controlled at 0.1-0.2mm to ensure flexible rotation while avoiding excessive clearance that could cause wobbling and wear. Additionally, a grease nipple 22 can be optionally installed at one end of the pin to periodically inject grease, reducing frictional wear between the pin and the ear plate and extending the service life of the rotating parts.

[0023] The support frame 8 is V-shaped. One end of the support frame 8 is equipped with an extension rod 16 for supporting the roof sloping beam, and the other end of the support frame 8 is equipped with an adjustable-length top support assembly 9 for supporting the bottom of the reinforcing beam 2. The force on the support frame 8 can be adjusted through the adjustable-length design.

[0024] Two support frames 8 are symmetrically arranged around the reinforcing beam 2 and are rotatably connected to both ends of the crossbeam 7 via pins. The support angle can be freely adjusted around the crossbeam 7 to adapt to roof beams with different slopes. The support frame 8 adopts a V-shaped mechanical structure, with an extension rod 16 integrally extending from one end. The surface of the extension rod 16 is treated with anti-slip material, which can fit tightly against the bottom of the roof beam to increase the contact area and distribute pressure.

[0025] As an optional implementation, the end face of the reinforcing beam 2 is an inverted U-shape, and the reinforcing beam 2 is fixedly connected to the ridge beam 1 by several bolts 4. The reinforcing beam 2 is centrally fixedly connected to the bottom of the ridge beam 1, and the width of the reinforcing beam 2 is smaller than that of the ridge beam 1.

[0026] The structure uses the ridge beam 1 as the basic load-bearing component. A reinforcing beam 2 is fixedly connected to its bottom along its length by several high-strength bolts 4, forming a composite structural system of "main load-bearing + auxiliary reinforcement". The end face of the reinforcing beam 2 adopts an inverted U-shaped design. This structure can enhance torsional resistance through its own cross-sectional characteristics, while providing internal space for the installation of the supporting structure 3. The reinforcing beam 2 is centrally fixed to the bottom of the ridge beam 1, and its width is smaller than that of the ridge beam 1. This avoids exceeding the original ridge outline and ensures the central symmetry of load transfer, reducing the eccentric stress on the ridge beam 1.

[0027] The supporting structure 3 includes a fixing block 10, which is clearance-fitted with the inner wall of the reinforcing beam 2. The fixing block 10 is fixedly connected to the reinforcing beam 2 by bolts 11, and the crossbeam 7 is fixedly connected to the fixing block 10.

[0028] The crossbeam 7 is connected to the reinforcing beam 2 via the snap-fit ​​assembly 6.

[0029] The snap-fit ​​assembly 6 includes two L-shaped rods 12 fixedly connected to the crossbeam 7. Several L-shaped grooves 13 corresponding to the L-shaped rods 12 are opened on both sides of the reinforcing beam 2, and the L-shaped rods 12 are inserted into the L-shaped grooves 13.

[0030] The two L-shaped rods 12 of the snap-fit ​​assembly 6 are symmetrically fixed on both sides of the top of the crossbeam 7 and precisely inserted into the L-shaped grooves 13 pre-set on both sides of the reinforcing beam 2. During installation, the L-shaped rods 12 are pushed horizontally into the L-shaped grooves 13 and then rotated to lock in place, forming a double fixation of "hanging anti-fall + bolt fastening", which greatly improves the installation stability of the support structure 3.

[0031] The top support assembly 9 includes a screw 15, which is threadedly connected to the support frame 8. The screw 15 is arranged along the length of the lever arm on one side of the support frame 8. A support head 14 is fixedly connected to the screw 15, and the support head 14 corresponds to the bottom of the crossbeam 7.

[0032] The extension length of the support head 14 can be precisely adjusted by rotating the screw 15, thereby changing the tilt angle of the support frame 8 and making the extension rod 16 fit tightly with the roof sloping beam. At the same time, the top support assembly 9 can convert the downward pressure of the sloping beam borne by the support frame 8 into an upward pushing force on the crossbeam 7, forming a closed-loop force transmission path of "sloping beam-support frame-crossbeam-reinforcing beam" to avoid local stress concentration.

[0033] The extension rod 16 is an extension of one end of the support frame 8 and is integrated with the support frame 8.

[0034] The bottom of the fixing block 10 has a groove, and the crossbeam 7 is fitted with the groove with a clearance.

[0035] The gap between the bottom groove of the fixing block 10 and the crossbeam 7 is controlled with a precision of 0.5-1mm. This facilitates fine-tuning of the position of the crossbeam 7 during installation and restricts the horizontal displacement of the crossbeam 7 through the side wall of the groove. Combined with the axial tightening force of bolt 2 11, a rigid connection between the support structure 3 and the reinforcing beam 2 is achieved, ensuring that the load transfer is seamless.

[0036] Several fixing plates 5 are fixedly connected between the side of the reinforcing beam 2 and the ridge beam 1.

[0037] The fixing plate 5 adopts a triangular steel plate structure, with its two right-angled sides welded or bolted to the side wall of the reinforcing beam 2 and the bottom of the ridge beam 1, respectively, forming a triangular stable support. The fixing plates 5 are recommended to be spaced 1.5-2m apart along the length of the reinforcing beam 2, which can effectively resist the relative shear force between the reinforcing beam 2 and the ridge beam 1, and further strengthen the connection rigidity between the two.

[0038] During installation, the reinforcing beam 2 and the ridge beam 1 are first fixed together as a whole using bolt 4 and fixing plate 5. The inverted U-shaped structure of the reinforcing beam 2 and the triangular support of the fixing plate 5 enhance the bending resistance of the ridge beam 1. Then, the L-shaped rod 12 of the support structure 3 is inserted into the L-shaped groove 13 of the reinforcing beam 2 to complete the pre-attachment. After positioning by the gap fit between the fixing block 10 and the crossbeam 7, the fixing block 10 is tightened with bolt 2 11 to achieve precise fixation of the support structure 3. Finally, according to the angle of the roof sloping beam, the screw 15 of the top support assembly 9 is rotated to adjust the angle of the support frame 8 so that the extension rod 16 is in close contact with the sloping beam. At this time, the load of the sloping beam is transferred to the V-shaped support frame 8 through the extension rod 16, and then converted into an upward thrust on the crossbeam 7 through the top support assembly 9. Finally, the load is distributed to the ridge beam 1 by the crossbeam 7 and the reinforcing beam 2, forming a complete closed loop of force.

[0039] Using the above structure, firstly, the reinforcing beam 2 is fixedly installed at the bottom of the ridge beam 1 along the length of the ridge beam 1 to reinforce the ridge beam 1. Then, several supporting structures 3 are installed on the reinforcing beam 2 in sequence. The support frame 8 of the supporting structure 3 is used to further support the sloping beam. The downward pressure of the sloping beam on the support frame 8 can be converted into an upward thrust on the crossbeam 7 and the reinforcing beam 2.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A construction extension ridge connection fixing structure, characterized by: It includes a ridge beam (1) and a reinforcing beam (2). The bottom of the ridge beam (1) is fixedly connected to the reinforcing beam (2). Several supporting structures (3) are fixedly connected at equal intervals along a straight line on the reinforcing beam (2) for supporting the roof sloping beam. The supporting structure (3) includes a crossbeam (7) and two support frames (8) symmetrically distributed around the reinforcing beam (2). The two support frames (8) are rotatably connected to both ends of the crossbeam (7). The support frame (8) is V-shaped. One end of the support frame (8) is provided with an extension rod (16) for supporting the roof sloping beam, and the other end of the support frame (8) is provided with a top support assembly (9) with adjustable length for supporting the bottom of the reinforcing beam (2).

2. The construction extension ridge connecting fixing structure according to claim 1, characterized in that: The end face of the reinforcing beam (2) is an inverted U-shape, and the reinforcing beam (2) is fixedly connected to the ridge beam (1) by several bolts (4).

3. The construction extension ridge connection fixing structure according to claim 2, characterized in that: The reinforcing beam (2) is centrally fixed to the bottom of the ridge beam (1), and the width of the reinforcing beam (2) is smaller than that of the ridge beam (1).

4. The construction extension ridge connecting fixing structure according to claim 3, characterized in that: The support structure (3) includes a fixing block (10), which is in clearance fit with the inner wall of the reinforcing beam (2). The fixing block (10) is fixedly connected to the reinforcing beam (2) by bolts (11), and the crossbeam (7) is fixedly connected to the fixing block (10).

5. The construction extension ridge connection fixing structure according to claim 4, characterized in that: The crossbeam (7) is connected to the reinforcing beam (2) via a snap-fit ​​assembly (6).

6. The construction extension ridge connection fixing structure according to claim 5, characterized in that: The snap-fit ​​assembly (6) includes two L-shaped rods (12) fixedly connected to the crossbeam (7). Several L-shaped grooves (13) corresponding to the L-shaped rods (12) are opened on both sides of the reinforcing beam (2). The L-shaped rods (12) are inserted into the L-shaped grooves (13).

7. The construction expansion ridge connection fixing structure according to claim 1, characterized in that: The top support assembly (9) includes a screw (15), which is threadedly connected to the support frame (8). The screw (15) is arranged along the length of the lever arm on one side of the support frame (8). A support head (14) is fixedly connected to the screw (15), and the support head (14) corresponds to the bottom of the crossbeam (7).

8. The construction expansion ridge connection fixing structure according to claim 1, characterized in that: The extension rod (16) is an extension of one end of the support frame (8) and is integral with the support frame (8).

9. The construction expansion ridge connection fixing structure according to claim 4, characterized in that: The bottom of the fixing block (10) is provided with a groove, and the crossbeam (7) is fitted with the groove with a gap.

10. The construction expansion ridge connection fixing structure according to claim 3, characterized in that: Several fixing plates (5) are fixedly connected between the side of the reinforcing beam (2) and the ridge beam (1).

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