Steel structure truss with stable structure

Abstract

The invention relates to the technical field of steel structure trusses, and discloses a steel structure truss with a stable structure, which comprises a first truss, a second truss and a square sliding block, the first truss is positioned right above the second truss, and two symmetrically arranged hinge seats are fixedly mounted at the bottom of the first truss and the top of the second truss; the prefabricated part split design is adopted, the first stand column and the first truss are prefabricated into an integrated structure, the second stand column and the second truss are prefabricated into an integrated structure, the integrated structure is disassembled into a plurality of independent parts during transportation, the transportation occupied space is greatly reduced, the transportation cost is reduced, complex welding operation is not needed during assembly, and fixed connection of the prefabricated parts is completed firstly; and then main body preassembly is completed through sliding and rotating cooperation of the square sliding blocks, the threaded rods, the connecting blocks, the connecting rods and other components, the on-site assembling step is simplified, the assembling efficiency is improved, the installation cost and the construction risk are reduced, and the problem that a traditional integrated truss is inconvenient to install is solved.

Description

Technical Field

[0001] This invention relates to the field of steel structure truss technology, and more specifically to a steel structure truss with a stable structure. Background Technology

[0002] Generally speaking, a steel truss is a load-bearing structure composed of multiple members connected by nodes. It is widely used in large-scale construction projects such as factories, stadiums, bridges, and convention centers. It is mainly used to bear and transmit vertical loads, horizontal loads, and seismic forces, providing a stable and reliable support frame for the building and ensuring the overall structural safety and performance of the building.

[0003] In practical applications, most existing steel structure trusses adopt a prefabricated integrated design. Due to the large size and heavy weight of the integrated truss, large lifting equipment is required for overall hoisting and installation after transportation to the construction site, increasing installation costs and construction risks. Moreover, the spacing of the integrated steel structure truss is fixed after production and cannot be flexibly adjusted according to the actual building usage requirements. When it is necessary to adjust the internal spatial layout of the building, or to change the load distribution of the truss due to changes in production processes, the fixed-spacing integrated truss cannot meet these adjustment requirements. If a forced change is required, large-scale dismantling and reinstallation of the truss is necessary, which not only generates a lot of manpower, material resources and time costs, but also damages the original structure of the building, affecting the overall stability and safety of the building. Based on this, the present invention aims to provide a steel structure truss with a stable structure that can flexibly adjust the truss spacing according to actual needs, ensuring the stability and safety of the building structure. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a steel truss structure with a stable structure, thereby solving the technical problems in the prior art.

[0005] The objective of this invention can be achieved through the following technical solutions: A steel truss with a stable structure includes a first truss, a second truss, and a square slider: the first truss is located directly above the second truss; two symmetrically arranged hinge seats are fixedly installed at the bottom of the first truss and the top of the second truss; a first column is fixedly installed at the bottom of the first truss, and a second column is fixedly installed at the top of the second truss; the first column is slidably inserted into the second column; the square slider is slidably installed in the first column and slidably connected to the second column; threaded rods are fixedly installed at both ends of the square slider; a connecting block is slidably installed on each threaded rod; a connecting rod is rotatably installed at both ends of the connecting block; one end of the connecting rod is rotatably connected to the hinge seat; and the hinge seat is located between the square slider and the connecting block. The locking plates are slidably mounted on both ends of the square slider, and the second column and the first column are both located between the two locking plates. The square slider is provided with a driving component, and the two locking plates are driven by the driving component to move towards each other. When the driving component drives the two locking plates to approach each other, the locking plates abut against the second column.

[0006] Preferably, the driving assembly includes a guide rod and a bidirectional lead screw. The bidirectional lead screw is rotatably mounted inside the square slider and is driven to rotate by a driving source. Two symmetrically arranged guide rods are fixedly mounted on the surface of each locking plate facing the square slider. The guide rods are slidably connected to the square slider, and the two locking plates are threaded to both ends of the bidirectional lead screw.

[0007] In one embodiment, the driving source can be manually driven or other mechanisms capable of rotational motion. This embodiment does not impose any specific limitations on these mechanisms.

[0008] Preferably, the connecting block is slidably connected to the threaded section of the threaded rod, and a locking nut is threadedly connected to the threaded section of the threaded rod, with the locking nut abutting against the side of the connecting block away from the square slider.

[0009] Preferably, two symmetrically arranged triangular blocks are fixedly installed at the bottom of the first truss and the top of the second truss. The two triangular blocks have a hypotenuse on the side away from each other. The hypotenuse is arranged at an angle. A bracket is fixedly installed on the connecting block. A roller is rotatably installed on the bracket facing the hypotenuse. The roller is slidably connected to the hypotenuse. When the first truss approaches the second truss, the roller moves on the hypotenuse, causing the connecting block to move away from the square slider.

[0010] Preferably, a retaining ring is fixedly installed on each threaded rod, the retaining ring being close to the square slider, the retaining ring being connected to the connecting block via a tension spring, and the tension spring preload causing the connecting block to be close to the retaining ring.

[0011] Preferably, the first column has a groove that slides in connection with the threaded rod, and the width of the roller is greater than the width of the groove.

[0012] Preferably, one end of the connecting rod is hinged to the hinge seat via a bolt, and the bolt and hinge seat are designed to be detachable.

[0013] Preferably, the bottom of the first column is designed to be open, the top of the second column is designed to be open, and the square slider is detachable from the first column.

[0014] The beneficial effects of this invention are: 1. In this invention, a prefabricated component disassembly design is adopted, in which the first column and the first truss, and the second column and the second truss are prefabricated as an integrated structure. During transportation, the connecting rod can be disassembled from the hinge seat through the bolt, and the square slider can be taken out from the first column. The first column and the second column are separated and disassembled into multiple independent components, which greatly reduces the space occupied during transportation and reduces transportation costs. During assembly, there is no need for complicated welding operations. The fixed connection of the prefabricated components is completed first, and then the main body is pre-assembled by the sliding and rotation of components such as the square slider, threaded rod, connecting block, and connecting rod. This simplifies the on-site assembly steps, improves assembly efficiency, reduces dependence on large lifting equipment, reduces installation costs and construction risks, and solves the problem of inconvenient installation of traditional integrated trusses. 2. In this invention, the bidirectional lead screw is driven to rotate by the drive component, which can drive the two locking plates to move in opposite directions. When moving in opposite directions, the locking plates disengage from the second column, unlocking the spacing adjustment function. When adjusting the spacing between the first truss and the second truss, the first column and the second column slide axially, and the connecting block and the connecting rod move in sync. The square slider always stays in the middle position to ensure balanced force. After the adjustment is completed, the locking plate abuts against the second column to achieve limit fixation. At the same time, the linkage structure of the triangular block, the hypotenuse, the bracket, the roller and the tension spring ensures that the first truss and the second truss can obtain stable support at any spacing, flexibly adapting to the needs of building space layout adjustment or load distribution change, avoiding the problem of large-scale dismantling and reinstallation of traditional integrated trusses due to fixed spacing, and reducing manpower, material resources and time costs.

[0015] 3. In this invention, after the spacing is adjusted, the locking plate tightly abuts against both sides of the second column, forming a lateral limit at the insertion part of the first column and the second column, thus preventing relative sliding. When the truss is subjected to vertical load, the rotational connection between the connecting rod and the hinge seat converts the vertical load into a lateral support force. The insertion structure of the first column and the second column and the lateral clamping of the locking plate form a double reinforcement, improving the resistance to deformation. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the square slider in this invention; Figure 3 This is a schematic diagram of the guide rod structure in this invention; Figure 4 This is a schematic diagram of the overall disassembled structure in this invention.

[0018] In the diagram: 1. First truss; 2. Second truss; 3. First column; 4. Second column; 5. Triangular block; 6. Hypotenuse; 7. Square slider; 8. Threaded rod; 9. Connecting block; 10. Bracket; 11. Roller; 12. Connecting rod; 13. Hinge seat; 14. Bolt; 15. Tension spring; 16. Fixing ring; 17. Locking nut; 18. Locking plate; 19. Double-acting screw; 20. Guide rod; 21. Slide groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-4 As shown, the present invention is a steel truss with a stable structure, comprising: The system includes a first truss 1, a second truss 2, and a square slider 7. The first truss 1 is located directly above the second truss 2. Two symmetrically arranged hinge seats 13 are fixedly installed at the bottom of the first truss 1 and at the top of the second truss 2. A first column 3 is fixedly installed at the bottom of the first truss 1, and a second column 4 is fixedly installed at the top of the second truss 2. The first column 3 is slidably inserted into the second column 4. The square slider 7 is slidably installed in the first column 3 and is slidably connected to the second column 4. Threaded rods 8 are fixedly installed at both ends of the square slider 7. A connecting block 9 is slidably installed on each threaded rod 8. A connecting rod 12 is rotatably installed at both ends of the connecting block 9. One end of the connecting rod 12 is rotatably connected to the hinge seat 13, and the hinge seat 13 is located between the square slider 7 and the connecting block 9.

[0021] Locking plates 18 are slidably mounted on both ends of a square slider 7, and the second column 4 and the first column 3 are both located between the two locking plates 18. A driving assembly is provided on the square slider 7. The two locking plates 18 are driven by the driving assembly to move towards each other. When the driving assembly drives the two locking plates 18 to approach each other, the locking plates 18 abut against the second column 4.

[0022] The working principle of this invention: During assembly, prefabricated components are preferred. The first column 3 and the first truss 1, and the second column 4 and the second truss 2 can be prefabricated into an integrated structure, which improves the overall structural strength, reduces on-site assembly steps, and increases assembly efficiency. First, the prefabricated first column 3 is fixedly connected to the bottom of the first truss 1, and the second column 4 is fixedly connected to the top of the second truss 2. Then, the square slider 7 is slidably installed inside the first column 3 and forms a sliding fit with the second column 4. Through the sliding connection between the threaded rods 8 at both ends of the square slider 7 and the connecting block 9, the connecting rods 12 at both ends of the connecting block 9 are connected to the connecting block 9. The hinge seats 13 on the first truss 1 and the second truss 2 are rotatably connected, completing the pre-assembly of the main structure. Then, the drive assembly is activated, driving the two locking plates 18 to move away from each other along the square slider 7 until the locking plates 18 disengage from the abutment state on both sides of the second column 4. At this time, the distance between the first truss 1 and the second truss 2 can be adjusted according to the actual installation requirements: when the two are close to or far apart, the first column 3 and the second column 4 first slide axially relative to each other, and the connecting blocks 9 on both sides are synchronously linked with the connecting rod 12. Specifically, one end of the connecting rod 12 rotates around the hinge seat 13 and the other end rotates around the connecting block 9, thereby driving the connecting block 9 along the thread. As rod 8 slides, the rotation of connecting rod 12 simultaneously raises or lowers threaded rod 8. Specifically, when the first truss 1 and the second truss 2 approach each other, connecting block 9 moves away from square slider 7, causing threaded rod 8 and square slider 7 to descend as a whole. When the first truss 1 and the second truss 2 move away from each other, connecting block 9 moves towards square slider 7, causing threaded rod 8 and square slider 7 to rise as a whole. Throughout the adjustment process, square slider 7 remains in the middle position between the first truss 1 and the second truss 2, and the distances between square slider 7 and the first truss 1, and between square slider 7 and the second truss 2, remain equal, ensuring balanced force distribution. After the spacing adjustment is completed, the two locking plates 18 are driven by the drive component to move towards each other along the square slider 7 until the locking plates 18 are tightly abutted against both sides of the second column 4, thereby achieving lateral limiting and fixing of the insertion part of the first column 3 and the second column 4 to avoid relative sliding. When the truss is subjected to vertical load, the first truss 1 tends to move closer to the second truss 2. Through the rotational connection between the connecting rod 12 and the hinge seat 13, the vertical load is converted into lateral support force. At the same time, the insertion structure of the first column 3 and the second column 4 and the lateral clamping effect of the locking plate 18 form a double reinforcement, further improving the deformation resistance of the overall structure.

[0023] like Figures 1-3As shown, in a preferred embodiment of the present invention, the driving assembly includes a guide rod 20 and a bidirectional lead screw 19. The bidirectional lead screw 19 is rotatably installed inside the square slider 7. The bidirectional lead screw 19 is driven to rotate by a driving source. Two symmetrically arranged guide rods 20 are fixedly installed on the surface of each locking plate 18 facing the square slider 7. The guide rods 20 are slidably connected to the square slider 7. The two locking plates 18 are threadedly connected to both ends of the bidirectional lead screw 19.

[0024] In one embodiment, the driving source can be manually driven, or other mechanisms capable of achieving rotational motion can be used. This embodiment does not impose specific limitations on these mechanisms.

[0025] In practical application, to achieve rapid reinforcement and spacing adjustment unlocking of the insertion part between the first column 3 and the second column 4, the drive source drives the bidirectional lead screw 19 to rotate. Since the two locking plates 18 are threadedly connected to both ends of the bidirectional lead screw 19, and the locking plates 18 form a sliding limit with the square slider 7 through the guide rod 20, the rotational motion of the bidirectional lead screw 19 can be accurately converted into the opposite or reverse linear motion of the two locking plates 18: When the bidirectional lead screw 19 is rotated in the forward direction, the two locking plates 18 move towards each other and tightly abut against the outer wall of the second column 4, forming a symmetrical lateral clamping force. Utilizing the self-locking characteristic of the threaded transmission, it ensures that the locking plates 18 maintain the clamping state without continuous driving force, preventing loosening. When the bidirectional lead screw 19 is rotated in the reverse direction, the two locking plates 18 move in the opposite direction and disengage from the second column 4, unlocking the spacing adjustment function. The two locking plates 18 are symmetrically arranged and guided by the double guide rods 20 to ensure uniform distribution of clamping force and prevent the second column 4 from shifting under force, as shown in Figure 2. As shown, a rotating wheel is provided at one end of the bidirectional lead screw 19, which facilitates manual operation. At the same time, the rotating wheel can also serve as a mechanical limit for the reverse movement of the locking plate 18. When the two locking plates 18 move away from each other to abut the rotating wheel, they stop moving, thus preventing the locking plates 18 from detaching from the bidirectional lead screw 19 and ensuring structural safety.

[0026] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the connecting block 9 is slidably connected to the threaded section of the threaded rod 8, and a locking nut 17 is threadedly connected to the threaded section of the threaded rod 8. The locking nut 17 abuts against the side of the connecting block 9 away from the square slider 7.

[0027] In practical application, after the spacing between the first truss 1 and the second truss 2 is adjusted and the two locking plates 18 tightly clamp the second column 4, the two locking nuts 17 can be threaded onto the threaded section of the threaded rod 8, so that the locking nuts 17 and the side of the connecting block 9 away from the square slider 7 are tightly abutted, providing additional mechanical resistance to the outward expansion movement of the connecting block 9, forming a fixed structure with end limiting, further improving the connection strength and pressure resistance, and preventing the connecting block 9 from excessively displacing and causing support failure when the truss is under heavy load.

[0028] like Figures 1-4 As shown, in a preferred embodiment of the present invention, two symmetrically arranged triangular blocks 5 are fixedly installed at the bottom of the first truss 1 and the top of the second truss 2. The two triangular blocks 5 have a hypotenuse 6 on the side away from each other. The hypotenuse 6 is arranged at an inclination. A bracket 10 is fixedly installed on the connecting block 9. A roller 11 is rotatably installed on the end of the bracket 10 facing the hypotenuse 6. The roller 11 is slidably connected to the hypotenuse 6. When the first truss 1 approaches the second truss 2, the roller 11 moves on the hypotenuse 6, so that the connecting block 9 moves away from the square slider 7.

[0029] Specifically, a fixing ring 16 is fixedly installed on each threaded rod 8. The fixing ring 16 is close to the square slider 7. The fixing ring 16 is connected to the connecting block 9 through a tension spring 15, and the preload of the tension spring 15 makes the connecting block 9 close to the fixing ring 16.

[0030] In practical application, this embodiment achieves synchronous optimization of spacing adjustment and load support through the linkage structure: when the first truss 1 and the second truss 2 are adjusted to be closer, the triangular block 5 at the bottom of the first truss 1 moves down synchronously with the first truss 1. The inclined side 6 on the triangular block 5 slides relative to the roller 11 at the end of the support 10. The inclined angle design of the inclined side 6 generates a lateral component force during the sliding process, actively pushing the support 10 to drive the connecting block 9 to move away from the square slider 7 along the threaded rod 8. At the same time, the connecting block 9 stretches the tension spring 15. The preload of the tension spring 15 forms a reverse tension force, ensuring that the roller 11 always maintains close contact with the inclined side 6 to prevent slippage. The movement of the connecting block 9 is transmitted to the hinge seat 13 through the connecting rod 12, causing the connecting rod 12 to rotate around the hinge seat 13 and... The diagonal support not only converts vertical pressure into axial tension and pressure of the connecting rod 12, achieving load distribution, but also provides additional diagonal support force, improving load resistance. When the first truss 1 and the second truss 2 move away from each other, the preload of the tension spring 15 pulls the connecting block 9 back to the direction closer to the square slider 7, simultaneously driving the two connecting rods 12 to rotate and open, always maintaining an angle support with a suitable spacing, ensuring that the first truss 1 and the second truss 2 can obtain stable support at any spacing. Compared with the rigid connection of traditional trusses, this linkage structure absorbs part of the impact load through the elastic deformation of the tension spring 15, improving the vibration resistance of the truss. In addition, the roller 11 adopts a rotating connection design, reducing sliding friction with the inclined side 6, reducing component wear, and extending service life.

[0031] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the first column 3 is provided with a groove 21 that is slidably connected to the threaded rod 8, and the width of the roller 11 is greater than the width of the groove 21.

[0032] In practical application, the groove 21 on the first column 3 provides precise sliding guidance for the threaded rod 8, ensuring the motion accuracy of the square slider 7 driving the threaded rod 8 to move along the axial direction of the first column 3, avoiding offset and jamming, and ensuring the smooth adjustment of the distance between the first truss 1 and the second truss 2. At the same time, the width of the roller 11 is greater than the width of the groove 21, forming a mechanical limiting structure. When the connecting block 9 moves towards the square slider 7, the roller 11 will abut against the edge of the groove 21, preventing the bracket 10 and the roller 11 from dislodging from the groove 21, ensuring the stable cooperation between the roller 11 and the inclined side 6, and avoiding failure of the linkage structure.

[0033] like Figures 1-4 As shown, in a preferred embodiment of the present invention, one end of the connecting rod 12 is hinged to the hinge seat 13 via a bolt 14, and the bolt 14 and the hinge seat 13 are detachably connected.

[0034] Specifically, the bottom of the first column 3 is designed to be open, the top of the second column 4 is designed to be open, and the square slider 7 is detachably connected to the first column 3.

[0035] In practical applications, the detachable design of this embodiment greatly facilitates the transportation, assembly, and maintenance of the truss: during transportation, the connecting rod 12 can be disassembled from the hinge seat 13 via the bolt 14, the square slider 7 can be removed from the first column 3, and the first column 3 can be separated from the second column 4, so that the truss can be disassembled into multiple independent parts, reducing the space occupied and lowering transportation costs; during assembly, the main body is assembled first and then the linkage is assembled, and the splicing of each part can be completed quickly without complicated welding operations, thus improving on-site assembly efficiency.

[0036] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A steel truss with a stable structure, comprising a first truss (1), a second truss (2), and a square slider (7), characterized in that: The first truss (1) is located directly above the second truss (2). Two symmetrically arranged hinge seats (13) are fixedly installed at the bottom of the first truss (1) and the top of the second truss (2). A first column (3) is fixedly installed at the bottom of the first truss (1), and a second column (4) is fixedly installed at the top of the second truss (2). The first column (3) is slidably inserted into the second column (4). The square slider (7) is slidably installed in the first column (3), and the square slider (7) is slidably connected to the second column (4). Threaded rods (8) are fixedly installed at both ends of the square slider (7). A connecting block (9) is slidably installed on each threaded rod (8). A connecting rod (12) is rotatably installed at both ends of the connecting block (9). One end of the connecting rod (12) is rotatably connected to the hinge seat (13), and the hinge seat (13) is located between the square slider (7) and the connecting block (9). Locking plates (18) are slidably mounted on both ends of a square slider (7), and the second column (4) and the first column (3) are both located between the two locking plates (18). A driving component is provided on the square slider (7). The two locking plates (18) are driven by the driving component to move towards each other. When the driving component drives the two locking plates (18) to approach each other, the locking plates (18) abut against the second column (4).

2. A steel truss with a stable structure according to claim 1, characterized in that, The drive assembly includes a guide rod (20) and a bidirectional lead screw (19). The bidirectional lead screw (19) is rotatably installed inside the square slider (7). The bidirectional lead screw (19) is driven to rotate by a drive source. Two symmetrically arranged guide rods (20) are fixedly installed on the surface of each locking plate (18) facing the square slider (7). The guide rods (20) are slidably connected to the square slider (7). The two locking plates (18) are threaded to both ends of the bidirectional lead screw (19).

3. A steel truss with a stable structure according to claim 1, characterized in that, The connecting block (9) is slidably connected to the threaded section of the threaded rod (8), and a locking nut (17) is threadedly connected to the threaded section of the threaded rod (8). The locking nut (17) abuts against the side of the connecting block (9) away from the square slider (7).

4. A steel truss with a stable structure according to claim 1, characterized in that, Two symmetrically arranged triangular blocks (5) are fixedly installed at the bottom of the first truss (1) and the top of the second truss (2). The two triangular blocks (5) have a hypotenuse (6) on the side away from each other. The hypotenuse (6) is arranged at an angle. A bracket (10) is fixedly installed on the connecting block (9). A roller (11) is rotatably installed on the end of the bracket (10) facing the hypotenuse (6). The roller (11) is slidably connected to the hypotenuse (6). When the first truss (1) approaches the second truss (2), the roller (11) moves on the hypotenuse (6), so that the connecting block (9) moves away from the square slider (7).

5. A steel truss with a stable structure according to claim 1, characterized in that, Each of the threaded rods (8) is fixedly mounted with a retaining ring (16), which is close to the square slider (7). The retaining ring (16) is connected to the connecting block (9) by a tension spring (15), and the tension spring (15) has a preload force that causes the connecting block (9) to be close to the retaining ring (16).

6. A steel truss with a stable structure according to claim 4, characterized in that, The first column (3) has a groove (21) that is slidably connected to the threaded rod (8), and the width of the roller (11) is greater than the width of the groove (21).

7. A steel truss with a stable structure according to claim 6, characterized in that, One end of the connecting rod (12) is hinged to the hinge seat (13) via a bolt (14), and the bolt (14) and the hinge seat (13) are designed to be detachable.

8. A steel truss with a stable structure according to claim 7, characterized in that, The bottom of the first column (3) is designed to be open, and the top of the second column (4) is designed to be open. The square slider (7) and the first column (3) are detachable.

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