A construction engineering net rack structure connecting device

Abstract

The utility model discloses a kind of construction engineering net rack structure connecting devices, relate to construction engineering technical field, including first base, the upper surface of first base is fixedly connected with net rack, second base is fixedly connected between net rack, the side end of net rack is fixedly connected with first fixed block, the surface of first fixed block is fixedly connected with second fixed block, the upper surface of first base is fixedly connected with mounting plate, the inside of mounting plate is symmetrically provided with limit slot, the upper surface of first base is rotatably connected with screw rod.The utility model, by the thread drive of screw rod, moving block can be moved downwards along limit slot, extrusion pressure is applied to second fixed block, this mechanical type locking design can effectively limit the relative displacement between net rack and first base, second base, enhance the anti-deformation ability of overall structure, the continuous extrusion effect of moving block to second fixed block, the loosening risk that net rack connecting place generates due to vibration or external force impact can be reduced, avoid metal fatigue and gap corrosion.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically to a connection device for a building engineering space frame structure. Background Technology

[0002] As modern architecture develops towards larger spans, lighter weight, and higher durability, space frame structures are widely used in large buildings such as stadiums, exhibition halls, and industrial plants due to their advantages such as rational spatial stress distribution, light weight, and flexible construction. However, traditional connection methods for space frame structures (such as welding and ordinary bolt connections) have the following technical drawbacks:

[0003] Welding is prone to stress concentration due to thermal deformation, while bolted connections may loosen due to long-term vibration or load changes, affecting the overall safety of the structure. Loose or corroded connection nodes require frequent inspections or even complete replacement, increasing the difficulty and cost of operation and maintenance.

[0004] Traditional connection methods rely on high-precision machining or on-site welding, which have high requirements for the construction environment and are difficult to adapt to complex working conditions; space frames of different sizes and shapes require customized connectors, which lack versatility and limit standardized construction.

[0005] While some adjustable connection devices exist in the existing technology, they generally suffer from problems such as complex structure, low adjustment accuracy, or insufficient anti-loosening performance. For example, screw-type connection devices are prone to failure due to thread wear, while pressure plate-type connections lack effective resistance to dynamic loads.

[0006] Therefore, it is necessary to propose a connection device for the grid structure of building engineering to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The purpose of this utility model is to solve the problem that traditional welding / bolt connections are prone to loosening and corrosion, and existing devices are not stable, which is a problem that space frame structures are widely used in large buildings. This utility model provides a connection device for space frame structures in building engineering.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0011] A connection device for a building engineering space frame structure includes a first base and a second base. A space frame is fixedly connected to the upper surface of the first base, and the second base is fixedly connected to the space frame. A first fixing block is fixedly connected to the side end of the space frame, and a second fixing block is fixedly connected to the surface of the first fixing block. An installation plate is fixedly connected to the upper surface of the first base, and limit grooves are symmetrically formed on the inner side of the installation plate.

[0012] Furthermore, a screw is rotatably connected to the upper surface of the first base, a movable block is threadedly connected to the outer surface of the screw, and a slider is fixedly connected to the side end of the movable block.

[0013] Furthermore, the slider corresponds to the limiting groove, which can limit the slider.

[0014] Furthermore, a pressure plate is attached to the upper surface of the second base, and the pressure plate is connected to the second base with a first bolt to fix the pressure plate.

[0015] Furthermore, the upper surface of the pressure plate is symmetrically provided with first grooves.

[0016] Furthermore, a second groove is provided on the upper surface of the second base, and a connecting post is provided inside the second groove. A fixing plate is fixedly connected to the top of the connecting post, and the fixing plate corresponds to the first groove to facilitate positioning of the fixing plate.

[0017] Furthermore, the fixing plate is connected to the second base with a second bolt, which allows the fixing plate to fix the pressure plate.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model, driven by the screw thread, allows the moving block to move downward along the limiting groove, applying a compressive force to the second fixed block. This mechanical locking design effectively limits the relative displacement between the space frame and the first and second bases, enhancing the overall structure's resistance to deformation. It is especially suitable for space frame structures subjected to dynamic loads or wind vibrations. The continuous compressive force of the moving block on the second fixed block reduces the risk of loosening at the space frame connection due to vibration or external impact, avoids metal fatigue and crevice corrosion, and thus extends the service life of the space frame structure.

[0021] 2. The design of the limiting groove and the slider in this utility model not only ensures the linear motion accuracy of the moving block, but also simplifies the installation process. The extrusion pressure can be adjusted by rotating the screw, without the need for complicated tools, which facilitates quick on-site construction and maintenance. The device realizes the extrusion function through standardized screw and moving block components, which can be adapted to different sizes of space frame structures. Only the length of the limiting groove or the pitch of the screw needs to be adjusted to meet diverse requirements. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0023] Figure 2This is a three-dimensional schematic diagram of the structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure in area A.

[0026] Reference numerals in the attached drawings: 1. First base; 2. Space frame; 3. Mounting plate; 4. Second base; 5. Pressure plate; 6. Limiting groove; 7. Slider; 8. Screw; 9. Moving block; 10. First fixing block; 11. First bolt; 12. First groove; 13. Second bolt; 14. Connecting column; 15. Fixing plate; 16. Second fixing block; 17. Second groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1-4 A connection device for a building engineering space frame structure includes a first base 1 and a second base 4. A space frame 2 is fixedly connected to the upper surface of the first base 1. The second base 4 is fixedly connected to the space frame 2. A first fixing block 10 is fixedly connected to the side end of the space frame 2. A second fixing block 16 is fixedly connected to the surface of the first fixing block 10. An installation plate 3 is fixedly connected to the upper surface of the first base 1. Limiting grooves 6 are symmetrically opened on the inner side of the installation plate 3. A screw 8 is rotatably connected to the upper surface of the first base 1. A moving block 9 is threadedly connected to the outer surface of the screw 8. A slider 7 is fixedly connected to the side end of the moving block 9. The slider 7 corresponds to the limiting groove 6, and the limiting groove 6 can limit the slider 7.

[0030] In this embodiment, by rotating the screw 8, the moving block 9 will move the slider 7 downward along the limiting groove 6 under the action of the thread. Then the moving block 9 will squeeze the second fixed block 16, thereby improving the stability of the space frame 2 and increasing the service life of the space frame 2.

[0031] Example 2

[0032] Please see Figure 1-4This embodiment is a further optimization based on embodiment 1. Specifically, a pressure plate 5 is attached to the upper surface of the second base 4. The pressure plate 5 is connected to the second base 4 with a first bolt 11 to fix the pressure plate 5. A first groove 12 is symmetrically opened on the upper surface of the pressure plate 5. A second groove 17 is opened on the upper surface of the second base 4. A connecting post 14 is provided inside the second groove 17. A fixing plate 15 is fixedly connected to the top of the connecting post 14. The fixing plate 15 corresponds to the first groove 12 to facilitate the positioning of the fixing plate 15. The fixing plate 15 is connected to the second base 4 with a second bolt 13 to fix the pressure plate 5.

[0033] In this embodiment, the worker places the pressure plate 5 on the second base 4, and then makes the pressure plate 5 contact the grid frame 2. Then, the connecting column 14 is placed in the second groove 17, and then the fixing plate 15 enters the first groove 12. Then, the fixing plate 15 and the second base 4 are fixed by the second bolt 13, and then the pressure plate 5 and the second base 4 are fixed by the first bolt 11. This helps to improve the stability of the pressure plate 5, thereby avoiding the phenomenon of loosening of the pressure plate 5 during long-term use, and is conducive to the stable use of the casting.

[0034] Working principle: By rotating the screw 8, the moving block 9 will move the slider 7 downward along the limiting groove 6 under the action of the thread. Then the moving block 9 will press the second fixed block 16. In addition, the operator puts the pressure plate 5 on the second base 4, so that the pressure plate 5 contacts the grid frame 2. Then the connecting column 14 is placed in the second groove 17, and the fixed plate 15 will enter the first groove 12. Then the fixed plate 15 and the second base 4 are fixed by the second bolt 13, and the pressure plate 5 and the second base 4 are fixed by the first bolt 11.

[0035] In summary, this utility model, driven by the thread of the screw 8, allows the moving block 9 to move downward along the limiting groove 6, applying a compressive force to the second fixed block 16. This mechanical locking design effectively limits the relative displacement between the space frame 2 and the first base 1 and the second base 4, enhancing the overall structure's resistance to deformation. It is particularly suitable for space frame structures subjected to dynamic loads or wind vibrations. The continuous compressive force of the moving block 9 on the second fixed block 16 reduces the risk of loosening at the space frame connections due to vibration or external impact, avoids metal fatigue and crevice corrosion, and thus extends the service life of the space frame structure.

[0036] The design of the limiting groove 6 and the slider 7 not only ensures the linear motion accuracy of the moving block 9, but also simplifies the installation process. The extrusion pressure can be adjusted by rotating the screw 8 without complicated tools, which facilitates quick on-site construction and maintenance. The device realizes the extrusion function through the standardized screw-moving block assembly, which can be adapted to different sizes of space frame structures. Only the length of the limiting groove 6 or the pitch of the screw 8 needs to be adjusted to meet diverse requirements.

[0037] A double fixing mechanism is formed by connecting the pressure plate 5 and the second base 4 with the first bolt 11, and by connecting the fixing plate 15 and the second base 4 with the second bolt 13. This design effectively prevents the pressure plate 5 from loosening due to vibration or temperature changes during long-term use, ensuring that the connection between the grid frame and the base remains stable. The first groove 12 on the pressure plate 5 cooperates with the fixing plate 15 at the top of the connecting column 14, and combined with the second groove 17 of the second base 4, to achieve "mortise and tenon" positioning. The workers only need to insert the connecting column 14 into the groove to complete the initial alignment, and then tighten it with bolts, which significantly improves the installation efficiency and accuracy.

[0038] The design of the pressure plate 5 in direct contact with the space frame 2 can evenly distribute the load pressure and avoid local stress concentration. At the same time, the rigid support structure of the connecting column 14 and the fixing plate 15 can withstand the impact of external forces under extreme conditions such as strong winds and earthquakes, making it suitable for high-rise buildings or large-span space frame projects. The pressure plate 5, connecting column 14 and fixing plate 15 are all independent modules. If a component is damaged, it can be disassembled and replaced individually without disassembling the entire space frame structure, reducing the later maintenance cost and ensuring the structural integrity after repair.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. The scope of patent protection of this utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of this utility model shall also be included within the scope of protection of this utility model.

Claims

1. A construction engineering grid structure connecting device comprising a first base (1) and a second base (4), characterized in that: The upper surface of the first base (1) is fixedly connected with a net rack (2), the second base (4) is fixedly connected with the net rack (2), the side end of the net rack (2) is fixedly connected with a first fixed block (10), the surface of the first fixed block (10) is fixedly connected with a second fixed block (16), the upper surface of the first base (1) is fixedly connected with a mounting plate (3), and the inner side of the mounting plate (3) is symmetrically provided with a limiting groove (6).

2. A building engineering grid structure connecting device according to claim 1, characterized in that: The upper surface of the first base (1) is rotatably connected with a screw rod (8), the outer surface of the screw rod (8) is threadedly connected with a moving block (9), and the side end of the moving block (9) is fixedly connected with a sliding block (7).

3. A building engineering grid structure connecting device according to claim 2, characterised in that: The sliding block (7) corresponds to the limiting groove (6).

4. A building engineering grid structure connecting device according to claim 1, characterized in that: The upper surface of the second base (4) is attached with a pressing plate (5), and the pressing plate (5) is connected with the second base (4) by a first bolt (11).

5. A building engineering grid structure connecting device according to claim 4, characterised in that: The upper surface of the pressing plate (5) is symmetrically provided with a first groove (12).

6. A building engineering grid structure connecting device according to claim 5, characterised in that: The upper surface of the second base (4) is provided with a second groove (17), the inside of the second groove (17) is provided with a connecting column (14), the top end of the connecting column (14) is fixedly connected with a fixed plate (15), and the fixed plate (15) corresponds to the first groove (12).

7. A building engineering grid structure connecting device according to claim 6, characterised in that: The fixed plate (15) is connected with the second base (4) by a second bolt (13).

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