Connecting device for quickly installing steel structure grid

Abstract

The utility model discloses a connecting device for quickly installing a steel structure net rack, which comprises a ball body, a connecting rod and a connecting rod, and the connecting assembly comprises four threaded heads, and the four threaded heads are rotationally connected to the interiors of the four threaded holes in a threaded mode correspondingly. During use, the threaded head and the threaded hole are aligned, rotated and assembled, in the assembling process, the nut is rotated to ascend and descend along the external thread of the lower threaded rod, so that the lower threaded rod moves up and down in the sleeve, extension or contraction can be achieved, assembling can be carried out more conveniently in the assembling process, and the assembling efficiency is improved. And through combined use of the clamping sleeve and the clamping ball, when the two balls are assembled, the connecting angle can be adjusted, the flexibility in the assembling process is improved, the threaded head at the other end and the threaded hole are conveniently aligned and installed, and the practicability of the whole device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of quick-installation steel structure space frame connection devices, specifically a quick-installation steel structure space frame connection device. Background Technology

[0002] Space frame structures are spatial structures made up of multiple members connected by nodes in a certain grid pattern. They have advantages such as low spatial stress, light weight, high stiffness, and good seismic performance. They can be used as roofs for buildings such as stadiums, theaters, exhibition halls, waiting halls, stadium grandstand canopies, aircraft hangars, and workshops with large two-way column spacing.

[0003] A quick-installation steel structure space frame connection device, disclosed in publication number CN222275755U, includes a sphere and a tie rod. The sphere and tie rod are connected and fixed by a plug-in structure, which includes a first plug-in component and a second plug-in component. The first plug-in component includes a first socket on the side wall of the sphere, and the end of the tie rod is provided with a first insert that engages with the first socket. The second plug-in component includes a through groove on the side wall of the end of the tie rod, a force-bearing rod is movably connected to the through groove, a thread corresponding to the through groove is provided on the outer side of the end of the tie rod, and a drive nut that engages with the thread is provided on the outer side of the end of the tie rod. This quick-installation steel structure space frame connection device consists of a first plug-in component and a second plug-in component, which facilitates the rapid connection of the tie rod and the sphere, saving time and effort and improving efficiency. However, due to its relatively simple structure and fixed tie rod length, the overall structure is heavy and its angular weight makes it difficult to assemble during installation, resulting in poor flexibility during installation. Therefore, it is necessary to provide a new quick-installation steel structure space frame connection device to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a quick-installation steel structure space frame connection device, which has the advantages of being retractable and easy to adjust, and easy to align and assemble, thus solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation steel structure space frame connection device, comprising: a sphere, the interior of which is uniformly provided with four threaded holes; a connection assembly, the connection assembly comprising four threaded heads, the four threaded heads being respectively threadedly rotatably connected to the interior of the four threaded holes. In use, the threaded heads are aligned with the threaded holes and rotated for assembly. During assembly, the nut is rotated to move it up and down along the external thread of the lower threaded rod, causing the lower threaded rod to move up and down inside the sleeve, thereby achieving extension or contraction, facilitating easier assembly and improving flexibility during the assembly process. By using a combination of a clamp and a clamping ball, the connection angle can be adjusted when assembling two spheres, further improving flexibility during assembly and facilitating alignment of the threaded head at the other end with the threaded hole, thus enhancing the overall practicality of the device.

[0006] Preferably, the connecting assembly further includes four sleeves, which are respectively fixedly connected to the outside of four threaded heads. Each of the four sleeves is rotatably connected to a nut, and a lower threaded rod is rotatably connected inside the nut. By rotating the nut, the lower threaded rod moves up and down along the external thread of the lower threaded rod, thereby allowing the lower threaded rod to move up and down inside the sleeve, which can achieve extension or contraction, so as to facilitate more convenient assembly during the assembly process.

[0007] Preferably, the sleeve is rotatably connected to the outside of the threaded head, and the rotatable connection ensures that the sleeve does not rotate when the threaded head rotates.

[0008] Preferably, a retaining sleeve is fixedly connected to the top of the lower threaded rod, and a retaining ball is fitted inside the retaining sleeve. An upper threaded rod is fixedly connected to the top of the retaining ball. By using the retaining sleeve and the retaining ball in combination, the connection angle can be adjusted when assembling the two balls, thereby improving the flexibility of the assembly process.

[0009] Preferably, a knob is rotatably connected to the outside of the lower threaded rod, and a retaining ring is sleeved on the outside of the lower threaded rod. The knob can be rotated to move up and down along the outside of the lower threaded rod and squeeze the retaining ring, so that the retaining ring squeezes the retaining sleeve to tighten the retaining ball, thereby improving the wrapping force of the retaining sleeve on the retaining ball and improving the limiting effect.

[0010] Preferably, the upper threaded rod has a structure communicating with the bottom of the lower threaded rod, including a sleeve, a nut, and a threaded head.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. When using this utility model, the threaded head is aligned with the threaded hole and rotated for assembly. During the assembly process, the nut is rotated to make it rise and fall along the external thread of the lower threaded rod, so that the lower threaded rod moves up and down inside the sleeve, thereby achieving extension or contraction, so as to facilitate more convenient assembly and improve the flexibility of the assembly process.

[0013] II. This utility model, through the combination of a ferrule and a ball, enables the adjustment of the connection angle when assembling two balls, improving the flexibility of the assembly process, so as to align the threaded head of the other end with the threaded hole for installation, thereby improving the practicality of the overall device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of a quick-installation steel structure space frame connection device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the disassembly structure of the threaded head of a quick-installation steel structure space frame connection device according to this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the sleeve of a quick-installation steel structure space frame connection device according to this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembly of the knob structure of the quick-installation steel structure space frame connection device of this utility model.

[0018] In the diagram: 1. Sphere; 2. Threaded head; 3. Sleeve; 4. Threaded hole; 5. Nut; 6. Lower threaded rod; 7. Compression sleeve; 8. Ball retainer; 9. Upper threaded rod; 10. Knob; 11. Snap ring. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4This utility model provides a technical solution: a quick-installation steel structure space frame connection device, comprising: a sphere 1, with four threaded holes 4 evenly distributed inside the sphere 1; and a connection assembly, comprising four threaded heads 2, which are respectively threadedly rotatably connected to the interior of the four threaded holes 4. In use, the threaded heads 2 are aligned with the threaded holes 4 and rotated for assembly. During assembly, the nut 5 is rotated to move up and down along the external thread of the lower threaded rod 6, causing the lower threaded rod 6 to move up and down inside the sleeve 3, thereby extending or retracting it for easier assembly and improved flexibility. The combination of a clamping sleeve 7 and a clamping ball 8 allows for adjustment of the connection angle when assembling two spheres 1, further improving the flexibility of the assembly process and facilitating alignment of the threaded head 2 at the other end with the threaded hole 4, thus enhancing the overall practicality of the device.

[0021] The connecting assembly also includes four sleeves 3, which are fixedly connected to the outside of four threaded heads 2. Each of the four sleeves 3 is rotatably connected to a nut 5, and a lower threaded rod 6 is rotatably connected inside the nut 5. By rotating the nut 5, it moves up and down along the external thread of the lower threaded rod 6, causing the lower threaded rod 6 to move up and down inside the sleeve 3, thereby extending or retracting, so as to facilitate more convenient assembly during the assembly process.

[0022] The sleeve 3 is rotatably connected to the outside of the threaded head 2. The rotatable connection ensures that the sleeve 3 will not rotate when the threaded head 2 rotates.

[0023] A retaining sleeve 7 is fixedly connected to the top of the lower threaded rod 6. A retaining ball 8 is fitted inside the retaining sleeve 7. An upper threaded rod 9 is fixedly connected to the top of the retaining ball 8. By using the retaining sleeve 7 and the retaining ball 8 in combination, the connection angle can be adjusted when assembling the two balls 1, thereby improving the flexibility of the assembly process.

[0024] The upper threaded rod 9 has a structure that communicates with the bottom of the lower threaded rod 6, including a sleeve 3, a nut 5, and a threaded head 2.

[0025] When using this quick-installation steel structure space frame connection device, align the threaded head 2 with the threaded hole 4 and rotate to assemble. During the assembly process, rotate the nut 5 to make it rise and fall along the external thread of the lower threaded rod 6, so that the lower threaded rod 6 can move up and down inside the sleeve 3, thereby achieving extension or contraction, so as to facilitate more convenient assembly and improve the flexibility of the assembly process.

[0026] Please see Figures 1 to 4This utility model provides a technical solution: a quick-installation steel structure space frame connection device, wherein a knob 10 is rotatably connected to the outside of the lower threaded rod 6, and a retaining ring 11 is sleeved on the outside of the lower threaded rod 6. The knob 10 can be rotated to move up and down along the outside of the lower threaded rod 6 and squeeze the retaining ring 11, so that the retaining ring 11 squeezes the retaining sleeve 7 to tighten it against the retaining ball 8, thereby improving the wrapping force of the retaining sleeve 7 on the retaining ball 8 and improving the limiting effect.

[0027] When using this quick-installation steel structure space frame connection device, the combination of the clamp 7 and the clamp ball 8 allows for the adjustment of the connection angle when assembling the two balls 1, improving the flexibility during the assembly process, so that the threaded head 2 at the other end can be aligned with the threaded hole 4 for installation.

[0028] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the specification and drawings can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-installation steel structure space frame connection device, characterized in that, include: The sphere (1) has four threaded holes (4) evenly distributed inside it. The connecting assembly includes four threaded heads (2), which are respectively threadedly rotatably connected to the interior of four threaded holes (4).

2. The quick-installation steel structure space frame connection device according to claim 1, characterized in that: The connecting assembly also includes four sleeves (3), which are fixedly connected to the outside of four threaded heads (2). The ends of the four sleeves (3) are movably connected to nuts (5), and the inside of the nuts (5) is movably connected to a threaded rod (6).

3. The quick-installation steel structure space frame connection device according to claim 2, characterized in that: The sleeve (3) is rotatably connected to the outside of the threaded head (2).

4. The quick-installation steel structure space frame connection device according to claim 2, characterized in that: The top of the lower threaded rod (6) is fixedly connected to a sleeve (7), and a retaining ball (8) is fitted inside the sleeve (7). The top of the retaining ball (8) is fixedly connected to an upper threaded rod (9).

5. The quick-installation steel structure space frame connection device according to claim 2, characterized in that: The lower threaded rod (6) is externally rotatably connected to a knob (10), and a retaining ring (11) is sleeved on the outside of the lower threaded rod (6).

6. The quick-installation steel structure space frame connection device according to claim 4, characterized in that: The upper threaded rod (9) has a structure that communicates with the bottom of the lower threaded rod (6), including a sleeve (3), a nut (5) and a threaded head (2).

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