Double-layer staggered truss structure with bidirectional lateral stiffness

Abstract

The invention discloses a double-layer staggered truss structure with bidirectional lateral stiffness, and relates to the technical field of truss structures, the double-layer staggered truss structure comprises truss seats, the truss seats are symmetrically arranged, a plurality of supporting beams are fixedly connected to the surface of the top end of each truss seat, and transverse beams are fixedly connected to the top ends of the supporting beams; the top ends of the transverse beams are fixedly connected with top beams, the top beams are in an arc shape, and the opposite sides of the top beams are fixedly connected with connecting beams. The bidirectional balanced lateral stiffness is achieved, load impact from different directions can be effectively resisted, an efficient force transmission path is constructed through the synergistic effect of the arc-shaped top beam and the inhaul cable system, it is ensured that loads are evenly dispersed to the whole structural system, and then the mechanical linkage principle is adopted, so that the mechanical linkage effect is achieved. Automatic adjustment can be achieved without external energy input, the reliability and practicability of the structure are greatly improved, and therefore the bidirectional lateral stiffness design is achieved, and excellent stability guarantee is provided for a building structure.

Description

Technical Field

[0001] The invention relates to the technical field of truss structures, in particular to a double-layer staggered truss structure with bidirectional lateral stiffness. Background Art

[0002] Truss structures are a common long-span support system in modern architecture, and their lateral stiffness directly impacts a building's safety and stability. Traditional truss structures often employ a unidirectional lateral stiffness design, increasing structural stiffness by strengthening support members in a specific direction. While this design performs well for single-directional loads, it often exhibits significant shortcomings under complex and variable multi-directional loads, such as earthquakes and wind loads.

[0003] With reference to the Chinese invention patent, the announcement number is: CN 215716591 U, and the name is: A double-layer staggered floor truss reinforcement docking structure, including a lower steel frame, the lower steel frame is installed with an upper steel frame through a docking mechanism, and a fixing mechanism is installed between the upper steel frame and the lower steel frame, the docking mechanism includes two first fixing blocks, two first fixing blocks are fixedly installed on the side of the lower steel frame, and two second fixing blocks are fixedly installed on the side of the upper steel frame, and the support plate is arranged between the two second fixing blocks. The application first rotates the support plate, and when the support plate is set between the two second fixing blocks, the support plate can be fixed between the two second fixing blocks by passing bolts through the through holes on the support plate, so that the upper steel frame can be fixed above the lower steel frame. This docking mechanism has a simple structure, can conveniently fix the upper steel frame and the lower steel frame together, and has good stability, which increases the convenience of the device.

[0004] However, there are still some problems in actual use:

[0005] The existing double-layer staggered truss rigid connection method lacks effective buffering and adaptive adjustment mechanisms, which easily leads to stress concentration under sudden loads. Secondly, traditional trusses have poor self-reset capabilities and are difficult to restore to their original state after experiencing large deformations, resulting in the accumulation of residual deformation. Furthermore, existing two-way lateral-resistance structures often require complex hydraulic or electric control systems, which not only increases construction costs but also reduces system reliability. These problems have seriously restricted the application of two-way lateral-resistance truss structures in projects such as high-rise buildings and large-span venues. Summary of the Invention

[0006] Technical problems solved

[0007] The purpose of this invention is to address the shortcomings of existing double-layer staggered truss rigid connections, which lack effective buffering and adaptive adjustment mechanisms, leading to stress concentration under sudden loads. Furthermore, traditional trusses have poor self-reset capabilities, making it difficult to return to their original state after experiencing large deformations, resulting in the accumulation of residual deformation. Furthermore, existing bidirectional lateral-resistance structures often require complex hydraulic or electric control systems, which not only increases construction costs but also reduces system reliability. These issues have severely limited the application of bidirectional lateral-resistance truss structures in projects such as high-rise buildings and large-span venues.

[0008] Technical Solution

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a double-layer staggered truss structure with bidirectional lateral stiffness, comprising a truss seat, the truss seat being symmetrically arranged, the top surface of the truss seat being fixedly connected to several support beams, and the top ends of the support beams being fixedly connected to transverse beams, the top ends of the transverse beams being fixedly connected to top beams, and the top beams being arc-shaped, the opposite sides of the top beams being fixedly connected to connecting beams, and the top ends of the connecting beams being fixedly connected to beam plates, the outer sides of the joints between the transverse beams, the top beams and the support beams being movably connected to double lateral swing stabilizing mechanisms, the opposite sides of the connecting beams being movably connected to deflection adjustment mechanisms, and the surfaces of the deflection adjustment mechanisms being fixedly connected to several reset mechanisms.

[0010] Furthermore, the double-lateral swing stabilization mechanism includes a connecting seat, a support bar and a connecting shaft, one end of the support bar is movably connected to the outside of the joint of the transverse beam, the top beam and the support beam through a rotating shaft, a connecting groove is opened inside the connecting seat, and sliding grooves are opened on both sides of the inside of the connecting groove, the connecting shaft is located inside the connecting groove, the connecting shaft passes through the inside of the sliding groove horizontally and is slidably connected to the inside of the sliding groove, the other end of the support bar extends to the inside of the connecting groove, and the bottom of the support bar is movably connected to the outside of the connecting shaft through a bearing.

[0011] Furthermore, the double-lateral swing stabilization mechanism also includes an extrusion spring, a limiting wheel, a rack and a control gear. One end of the extrusion spring is fixedly connected to the inside of the connecting groove, and the other end of the extrusion spring is tightly attached to the bottom side of the support bar. There are multiple limiting wheels, and the limiting wheels are respectively fixedly connected to the outside of the connecting shaft, and the limiting wheel is located on one side of the connecting seat. The diameter of the limiting wheel is longer than the height of the sliding groove. One end of the rack is respectively fixedly connected to the outside of the connecting shaft, and the rack is located on the side of the connecting seat away from the limiting wheel. The control gears are respectively engaged with the end surface of the rack away from the connecting shaft.

[0012] Furthermore, the deflection adjustment mechanism includes a control shaft, a support frame, a control ring and an arc block. There are several support frames, and the middle position of the support frame is movably connected to the outside of the control shaft through a bearing. There are several control rings and they are fixedly connected to the outside of the control shaft, and the control rings are located in the same cross-section of each group of mutually symmetrical top beams. There are two arc blocks, and the arc blocks are fixedly connected to the outside of the control ring in an axially symmetrical manner.

[0013] Furthermore, the deflection adjustment mechanism also includes a cable, a winding roller and a transmission rod. There are two cables, and one end of the two cables is fixedly connected to the inner side of the arc block respectively. The other end of the cable passes through the connecting beam, follows the arc of the top beam, and then passes through the outside of the joint between the transverse beam, the top beam and the support beam and is wound around the outside of the winding roller. All the winding rollers on the same side are fixedly connected to the outside of the transmission rod.

[0014] Furthermore, the winding roller is located on opposite sides of the connecting seat and the truss seat, and the bottom of the connecting seat is fixedly connected to the bottom of the truss seat. The control gear is located at one end of the winding roller, and the control gear is fixedly connected to the outside of the transmission rod.

[0015] Furthermore, the outer side of the transmission rod is movably connected to several fixing bars through bearings, and one end of the fixing bar is fixedly connected to the outer side of the truss seat, the two ends of the control shaft are movably connected to the installation bars through rotating shafts, and the two ends of the installation bar are respectively fixedly connected to the opposite sides of the connecting beam, and the two ends of the support bar are respectively fixedly connected to the opposite sides of the connecting beam.

[0016] Furthermore, the reset mechanism includes a fixed ring, a drive bar and a reset spring. There are several fixed rings, and the drive bars are symmetrically arranged and fixedly connected to the upper and lower ends of the fixed ring respectively. One end of the reset spring is fixedly connected to one side of the symmetrical drive bar.

[0017] Furthermore, the reset spring is arranged at an angle and is arranged with the axis of the fixing ring as the axis of symmetry. The ends of the reset spring away from the driving bar are fixedly connected to the opposite sides of the connecting beam, and the fixing rings are fixedly connected to the outer sides of the control shaft.

[0018] Compared with the existing technology, this double-layer staggered truss structure with bidirectional lateral stiffness has the following beneficial effects:

[0019] 1. The present invention enables the support bar to slide smoothly in the connecting seat, the extrusion spring to provide buffering, and the linkage of the rack and the control gear to drive the winding roller to rotate, so that the cable system automatically adjusts the force balance. It not only achieves bidirectional balanced lateral stiffness and can effectively resist load impacts from different directions, but also constructs an efficient force transmission path through the synergistic effect of the arc-shaped top beam and the cable system, ensuring that the load is evenly distributed throughout the entire structural system. Secondly, the mechanical linkage principle is adopted, and automatic adjustment can be achieved without external energy input, which greatly improves the reliability and practicality of the structure, thereby realizing a bidirectional lateral stiffness design and providing excellent stability guarantee for the building structure.

[0020] 2. The present invention can adjust the structural state in real time according to load changes through cables and winding rollers. The linkage between the control ring and the arc block can quickly balance the tension difference on both sides. The passive adjustment mechanism not only responds quickly but also has precise positioning, effectively avoiding the residual deformation of traditional structures under repeated loads, thereby achieving coordinated cooperation between various components to form an organic whole, so that the truss always maintains the best working state when facing complex and changeable external loads, greatly extending its service life.

[0021] 3. The present invention uses a reset spring to assist in the control shaft, which actually rotates to the initial position, ensuring that the structure automatically returns to the initial position after the load disappears, ensuring that the entire process is smooth and smooth. Secondly, the compact layout and efficient force transmission path make the overall structure lighter and more beautiful, ensuring structural safety while maximizing economic benefits, providing a new solution for modern architectural design.

[0022] Other advantages, objects and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of a top-down three-dimensional structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the connecting beam of the present invention;

[0026] Figure 4 It is a schematic diagram of the local cross-section connection structure of the truss seat of the present invention;

[0027] Figure 5 It is a schematic diagram of the local cross-section connection structure of the top beam of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the double lateral swing stabilization mechanism of the present invention;

[0029] Figure 7 This is a schematic structural diagram of the deflection adjustment mechanism of the present invention;

[0030] Figure 8 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0031] In the figure: 1. Truss seat; 2. Support beam; 3. Transverse beam; 4. Top beam; 5. Connecting beam; 6. Beam plate; 7. Double lateral swing stabilization mechanism; 701. Connecting seat; 702. Support bar; 703. Connecting shaft; 704. Extrusion spring; 705. Limiting wheel; 706. Rack; 707. Control gear; 8. Bias adjustment mechanism; 801. Control shaft; 802. Support frame; 803. Control ring; 804. Arc block; 805. Cable; 806. Winding roller; 807. Transmission rod; 9. Reset mechanism; 901. Fixed ring; 902. Drive bar; 903. Reset spring; 10. Connecting groove; 11. Sliding groove; 12. Fixing bar; 13. Mounting bar. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1-8 As shown, the present invention provides a technical solution: a double-layer staggered truss structure with bidirectional lateral stiffness, including a truss seat 1, the truss seat 1 is symmetrically arranged, the top surface of the truss seat 1 is fixedly connected with several support beams 2, and the top ends of the support beams 2 are fixedly connected with transverse beams 3, the top ends of the transverse beams 3 are fixedly connected with top beams 4, and the top beams 4 are arc-shaped, the opposite sides of the top beams 4 are fixedly connected with connecting beams 5, and the top ends of the connecting beams 5 are fixedly connected with beam plates 6, the outer sides of the joints between the transverse beams 3, the top beams 4 and the support beams 2 are movably connected with double lateral swing stabilizing mechanisms 7, the opposite sides of the connecting beams 5 are movably connected with deflection adjustment mechanisms 8, and the surface of the deflection adjustment mechanism 8 is fixedly connected with several reset mechanisms 9.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the double lateral swing stabilizing mechanism 7 includes a connecting seat 701, a support bar 702 and a connecting shaft 703. One end of the support bar 702 is movably connected to the outer side of the joint of the transverse beam 3, the top beam 4 and the support beam 2 through a rotating shaft. A connecting groove 10 is provided inside the connecting seat 701, and sliding grooves 11 are provided on both sides of the interior of the connecting groove 10. The connecting shaft 703 is located inside the connecting groove 10, and the connecting shaft 703 passes through and is slidably connected to the interior of the sliding groove 11. The other end of the support bar 702 extends to the interior of the connecting groove 10, and the bottom of the support bar 702 is movably connected to the outer side of the connecting shaft 703 through a bearing. The double lateral swing stabilizing mechanism 7 also includes an extrusion spring 704, a limiting wheel 705, a rack 706 and a control gear 707. One end of the extrusion spring 704 is fixedly connected to the interior of the connecting groove 10, and the other end of the extrusion spring 704 is tightly attached to the bottom side of the support bar 702. The limiting wheel 705 is provided with multiple limiting The limiting wheels 705 are fixedly connected to the outside of the connecting shaft 703, and the limiting wheels 705 are located on one side of the connecting seat 701. The diameter of the limiting wheels 705 is longer than the height of the sliding groove 11. One end of the rack 706 is fixedly connected to the outside of the connecting shaft 703, and the rack 706 is located on the side of the connecting seat 701 away from the limiting wheels 705. The control gear 707 is respectively engaged with the end surface of the rack 706 away from the connecting shaft 703. The deflection adjustment mechanism 8 includes a control shaft 80 1. Support frame 802, control ring 803 and arc block 804. There are several support frames 802, and the middle position of the support frame 802 is movably connected to the outside of the control shaft 801 through a bearing. There are several control rings 803 and they are fixedly connected to the outside of the control shaft 801. The control rings 803 are located in the same cross-section of each group of mutually symmetrical top beams 4. There are two arc blocks 804, and the arc blocks 804 are fixedly connected to the outside of the control ring 803 in an axially symmetrical manner.

[0035] A precise sliding groove 11 is provided in the connecting seat 701, which cooperates with the connecting shaft 703 to enable the support bar 702 to slide smoothly when subjected to force, and at the same time, the extrusion spring 704 provides an adaptive buffering force. This design enables the structure to effectively absorb and disperse impact energy when subjected to lateral loads. Secondly, the meshing transmission of the rack 706 and the control gear 707 converts the displacement of the support bar 702 into rotational motion, and then drives the control shaft 801 of the deflection adjustment mechanism 8 to rotate through the transmission system, thereby realizing real-time compensation of structural deformation. The arc blocks 804 symmetrically arranged on the control ring 803 move in coordination under the drive of the control shaft 801, adjust the center of gravity of the structure by changing position, maintain excellent stability, thereby realizing passive adjustment, and automatically responding to load changes without external energy input. It not only improves the reliability of the structure, but also significantly reduces maintenance costs, providing an efficient and economical anti-lateral solution for large buildings.

[0036] like Figure 1 、 Figure 3、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the deflection adjustment mechanism 8 also includes a cable 805, a winding roller 806 and a transmission rod 807. There are two cables 805, and one end of the two cables 805 is fixedly connected to the inner side of the arc block 804 respectively. The other end of the cable 805 passes through the connecting beam 5 along the arc of the top beam 4 and then passes through the outer side of the joint between the transverse beam 3, the top beam 4 and the support beam 2 and is wound around the outer side of the winding roller 806. All the winding rollers 806 on the same side are fixedly connected to the outer side of the transmission rod 807. The winding roller 806 is located on the opposite side of the connecting seat 701 and the truss seat 1, and the connecting seat The bottom of 701 is fixedly connected to the bottom of the truss seat 1, the control gear 707 is located at one end of the winding roller 806, and the control gear 707 is fixedly connected to the outside of the transmission rod 807, and the outside of the transmission rod 807 is movably connected to several fixing bars 12 through bearings, and one end of the fixing bar 12 is fixedly connected to the outside of the truss seat 1, and the two ends of the control shaft 801 are movably connected to the mounting bar 13 through a rotating shaft, and the two ends of the mounting bar 13 are respectively fixedly connected to the opposite sides of the connecting beam 5, and the two ends of the support bar 702 are respectively fixedly connected to the opposite sides of the connecting beam 5.

[0037] The arc block 804 and the winding roller 806 are connected at both ends of the cable 805 to form a closed-loop force system. When the truss is subjected to lateral loads, the cable 805 is automatically retracted and extended through the rotation of the winding roller 806, driving the control shaft 801 to rotate and then adjust the position of the arc block 804, thereby changing the distribution of the center of gravity of the structure. The linkage design of the control gear 707 and the transmission rod 807 realizes the synchronous operation of multiple winding rollers 806, making the tension distribution more uniform. Secondly, the fixing bar 12 and the installation bar 13 constitute a stable installation foundation, ensuring the smoothness of the adjustment process. Finally, the arc-shaped arrangement of the cable 805 along the top beam 4 optimizes the force transmission path and effectively reduces friction loss, thereby working in coordination with the double lateral swing stabilization mechanism 7 to form a complete passive adjustment system, which can automatically adjust the structural state according to the load size and achieve dynamic balance of bidirectional lateral stiffness without external energy input, greatly improving the safety and reliability of the structure.

[0038] like Figure 3 、 Figure 5 and Figure 8As shown, the reset mechanism 9 includes a fixed ring 901, a driving bar 902 and a reset spring 903. There are several fixed rings 901. The driving bars 902 are symmetrically arranged and fixedly connected to the upper and lower ends of the fixed ring 901. One end of the reset spring 903 is fixedly connected to one side of the symmetrical driving bar 902. The reset spring 903 is inclined and the reset spring 903 is arranged with the axis of the fixed ring 901 as the symmetry axis. The end of the reset spring 903 away from the driving bar 902 is fixedly connected to the opposite side of the connecting beam 5, and the fixed ring 901 is fixedly connected to the outer side of the control shaft 801.

[0039] Through the ingenious combination of the inclined return spring 903, the fixed ring 901 and the drive bar 902, when the control shaft 801 rotates due to the load, the fixed ring 901 drives the drive bar 902 to compress the return spring 903 on one side and stretch the spring on the other side to form a restoring torque. The inclined return spring 903 can provide a larger effective working stroke, ensuring that the structure can obtain sufficient restoring force under various offset angles. Secondly, the symmetrical layout of the spring system makes the reset process smoother, avoiding the vibration problem that may be caused by the traditional single spring design. Finally, the rigid connection between the fixed ring 901 and the control shaft 801 ensures the high efficiency of torque transmission, making the reset response faster and more accurate, thereby seamlessly cooperating with the deflection adjustment mechanism 8 to form a complete self-recovery system, which can automatically restore the structure to its initial equilibrium position after the load disappears, greatly improving the durability of the structure and the performance stability under repeated loads, and providing reliable long-term safety protection for the building structure.

[0040] Working principle: When the double-layer staggered truss is swung to both sides by external force and deflected to one side, the connection between the transverse beam 3, the top beam 4 and the support beam 2 presses against the support bar 702, causing its bottom to move outward in the connection groove 10 of the connection seat 701, and at the same time, the connecting shaft 703 slides in the sliding groove 11 following the bottom track of the support bar 702. At this time, the extrusion spring 704 is compressed by the force, and then the rack 706 is pulled and displaced by the connecting shaft 703, prompting the control gear 707 to drive the transmission tube to synchronously drive the winding roller 806 to rotate, and the cable 805 continues to wind and collect on the surface of the winding roller 806. The other end of the cable 805 pulls the arc block 804 to drive the control ring 803 to flip to the side of the force, and then the control shaft 801 rotates in its direction. At this time, the other The arc block 804 rotates in its direction, and the cable 805 connected to the arc block 804 at the other end is relaxed by its rotation. Furthermore, when it is severely tilted, when the arc block 804 is parallel to the beam plate 6, the other side of the tilt pulls the support bar 702, and at the same time, the extrusion spring 704 acts on the bottom of the support bar 702, causing it to slide toward the inside of the connecting groove 10. At the same time, the connecting shaft 703 pushes the rack 706 to drive the control gear 707 to rotate, and the winding roller 806 is driven by the transmission bar to rotate and release the cable 805. In this process, the shaft fixing ring 901 rotates with the control shaft 801. At this time, the reset spring 903 is squeezed and shortened by the drive bar 902. When the offset force disappears, the reset spring 903 assists in acting on the control shaft 801, causing it to rotate to its initial position.

[0041] It should be noted that, in this document, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer staggered truss structure with bidirectional lateral stiffness, comprising a truss base (1), characterized in that: The truss seat (1) is symmetrically arranged. The top surface of the truss seat (1) is fixedly connected to several support beams (2), and the top ends of the support beams (2) are fixedly connected to transverse beams (3). The top ends of the transverse beams (3) are fixedly connected to top beams (4), and the top beams (4) are arc-shaped. The opposite sides of the top beams (4) are fixedly connected to connecting beams (5), and the top ends of the connecting beams (5) are fixedly connected to beam plates (6). The outer sides of the joints between the transverse beams (3), the top beams (4) and the support beams (2) are movably connected to double lateral swing stabilizing mechanisms (7). The opposite sides of the connecting beams (5) are movably connected to deflection adjustment mechanisms (8), and the surfaces of the deflection adjustment mechanisms (8) are fixedly connected to several reset mechanisms (9).

2. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 1, characterized in that: The double-lateral swing stabilizing mechanism (7) comprises a connecting seat (701), a support bar (702) and a connecting shaft (703); one end of the support bar (702) is movably connected to the outer sides of the joints of the transverse beam (3), the top beam (4) and the support beam (2) through a rotating shaft; a connecting groove (10) is provided inside the connecting seat (701), and sliding grooves (11) are provided on both sides of the interior of the connecting groove (10); the connecting shaft (703) is located inside the connecting groove (10); the connecting shaft (703) passes through the interior of the sliding groove (11) transversely and is slidably connected to the interior of the sliding groove (11); the other end of the support bar (702) extends to the interior of the connecting groove (10), and the bottom of the support bar (702) is movably connected to the outer side of the connecting shaft (703) through a bearing.

3. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 2, characterized in that: The double-lateral swing stabilizing mechanism (7) further comprises a pressing spring (704), a limiting wheel (705), a rack (706) and a control gear (707). One end of the pressing spring (704) is fixedly connected to the inside of the connecting groove (10), and the other end of the pressing spring (704) is in close contact with the bottom side of the support bar (702). A plurality of limiting wheels (705) are provided. The limiting wheels (705) are respectively fixedly connected to the outside of the connecting shaft (703), and the limiting wheels (705) are located on one side of the connecting seat (701). The diameter of the limiting wheel (705) is longer than the height of the sliding groove (11). One end of the rack (706) is respectively fixedly connected to the outside of the connecting shaft (703), and the rack (706) is located on the side of the connecting seat (701) away from the limiting wheel (705). The control gear (707) is respectively engaged with the surface of one end of the rack (706) away from the connecting shaft (703).

4. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 3, characterized in that: The deflection adjustment mechanism (8) comprises a control shaft (801), a support frame (802), a control ring (803) and an arc block (804). The support frames (802) are provided in plurality, and the middle position of the support frame (802) is movably connected to the outer side of the control shaft (801) through a bearing. The control rings (803) are provided in plurality and fixedly connected to the outer side of the control shaft (801). The control rings (803) are respectively located at the same cross section of each group of mutually symmetrical top beams (4). The arc blocks (804) are provided in plurality, and the arc blocks (804) are fixedly connected to the outer side of the control ring (803) in an axially symmetrical manner.

5. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 4, characterized in that: The deflection adjustment mechanism (8) further comprises a cable (805), a winding roller (806) and a transmission rod (807). Two cables (805) are provided, and one end of each cable (805) is fixedly connected to the inner side of the arc block (804). The other end of the cable (805) passes through the connecting beam (5), follows the arc of the top beam (4), and then passes through the outer side of the joint between the transverse beam (3), the top beam (4) and the support beam (2), and is wound around the outer side of the winding roller (806). All the winding rollers (806) on the same side are fixedly connected to the outer side of the transmission rod (807).

6. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 5, characterized in that: The winding roller (806) is located on opposite sides of the connecting seat (701) and the truss seat (1), and the bottom of the connecting seat (701) is fixedly connected to the bottom of the truss seat (1). The control gear (707) is located at one end of the winding roller (806), and the control gear (707) is fixedly connected to the outer side of the transmission rod (807).

7. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 5, characterized in that: The outer side of the transmission rod (807) is movably connected to a plurality of fixing bars (12) via a bearing, and one end of the fixing bar (12) is fixedly connected to the outer side of the truss seat (1). The two ends of the control shaft (801) are movably connected to the mounting bars (13) via a rotating shaft, and the two ends of the mounting bars (13) are respectively fixedly connected to the two opposite sides of the connecting beam (5), and the two ends of the support bar (702) are respectively fixedly connected to the opposite sides of the connecting beam (5).

8. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 1, characterized in that: The reset mechanism (9) comprises a fixing ring (901), a driving bar (902) and a reset spring (903). The fixing ring (901) is provided with several pieces. The driving bars (902) are symmetrically arranged and respectively fixedly connected to the upper and lower ends of the fixing ring (901). One end of the reset spring (903) is respectively fixedly connected to one side of the symmetrical driving bar (902).

9. The double-layer staggered truss structure with bidirectional lateral stiffness according to claim 8, characterized in that: The return spring (903) is arranged at an angle, and the return spring (903) is arranged with the axis of the fixing ring (901) as the symmetry axis. One end of the return spring (903) away from the driving bar (902) is fixedly connected to the opposite side of the connecting beam (5), and the fixing ring (901) is fixedly connected to the outer side of the control shaft (801).

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