A connecting assembly for fabricated steel bracing and steel tie beam in industrial and civil construction

Abstract

This invention discloses a prefabricated steel support and steel tie beam connection assembly for civil engineering and industrial buildings, primarily relating to the technical field of civil engineering and industrial buildings. It includes several first telescopic beams slidably mounted radially on a steel tie beam, and a vertical plate slidably mounted on a steel tie support plate. The vertical plate has a spherical groove along its vertical direction. The ends of the first telescopic beams have limiting balls that roll in contact with the spherical grooves. The vertical plate has limiting grooves communicating with the spherical grooves, and the sides of the limiting balls contact the limiting grooves. The upper and lower sides of the steel tie support plate each have horizontal plates that slide in contact with the vertical plate. The two ends of the vertical plate have fixing blocks. The horizontal plates have through grooves for the fixing blocks to pass through, and several fixing grooves communicating with the through grooves. The sides of the fixing blocks contact the fixing grooves. The beneficial effects of this invention are: solving the problem that the support structure cannot adapt to non-rectangular foundation pits, reducing the cost of manufacturing the support structure, and shortening the construction period required for foundation pit projects.

Description

Technical Field

[0001] This invention relates to the technical field of civil engineering, specifically to a component for connecting prefabricated steel supports and steel tie beams in civil engineering. Background Technology

[0002] In the field of industrial and civil construction (hereinafter referred to as "ICC"), foundation pit engineering is the core process of foundation construction. The safety and stability of the support system directly determines the quality of subsequent construction and the safety of surrounding buildings and pipelines. As a key load-bearing component of the support system, the steel support plate for foundation pits, through its synergy with the steel beams, can effectively resist the earth pressure, water pressure and external loads on the sidewalls of the foundation pit, and prevent engineering risks such as slope collapse and surface settlement. It is the core technical carrier for ensuring the safety of deep foundation pit excavation.

[0003] With the diversification of functions in civil and industrial construction projects and the intensive development of urban land resources, the plan shape of foundation pits has gradually expanded from the traditional rectangular shape to non-rectangular shapes. In projects such as urban complexes, subway station transportation hubs, and underground parking garages in commercial centers, non-rectangular foundation pits such as semi-circular, trapezoidal, triangular, and polygonal shapes are increasingly widely used to match the building's plan layout, optimize the utilization efficiency of underground space, and avoid underground pipelines.

[0004] The current mainstream steel-supported retaining plate and steel-supported beam system is mainly designed based on the stress characteristics of rectangular foundation pits. It adopts a standardized combination mode of "straight steel-supported retaining plates + steel-supported beams". The steel-supported retaining plates are mostly rectangular plates of equal length, and the steel-supported beams construct an orthogonal stress system through straight components such as braces and corner braces. This system can achieve stable support in rectangular foundation pits such as residential basements and office building foundations through standardized component splicing. Moreover, the construction technology is mature and the cost is controllable. Therefore, it is widely used in regular foundation pit projects of civil engineering and industrial buildings.

[0005] However, when traditional support structures are applied to non-rectangular foundation pits, the steel support plates on both sides of the pit are not parallel to each other, resulting in an angle between the steel beams and the steel support plates. This requires customizing the angle of the steel beam ends, and the spacing between the support plates on both sides is not the same, requiring customizing the length of the steel beams. This increases the cost of manufacturing the support structure to some extent, and also requires additional time to manufacture steel beams of different shapes, further extending the construction period required for the foundation pit project. Summary of the Invention

[0006] The purpose of this invention is to provide a connection component for prefabricated steel supports and steel tie beams in civil and industrial buildings, which solves the problem that the support structure cannot adapt to non-rectangular foundation pits, reduces the cost of manufacturing the support structure, and shortens the construction period required for foundation pit projects.

[0007] To achieve the above objectives, the invention employs the following technical solution:

[0008] A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings includes a connection structure disposed between several steel tie support plates and steel tie beams. The connection structure includes several first telescopic beams slidably disposed radially on the steel tie beams, and vertical plates slidably disposed on the steel tie support plates. The vertical plates have spherical grooves along their vertical direction. The ends of the first telescopic beams have limiting balls that roll in contact with the spherical grooves. The vertical plates have limiting grooves that communicate with the spherical grooves. The sides of the limiting balls contact the limiting grooves. The upper and lower sides of the steel tie support plates have horizontal plates that slide in contact with the vertical plates. The two ends of the vertical plates have fixing blocks. The horizontal plates have through grooves for the fixing blocks to pass through, and several fixing grooves that communicate with the through grooves. The sides of the fixing blocks contact the fixing grooves.

[0009] Furthermore, a second telescopic beam is slidably connected to the first telescopic beam, the limiting ball is disposed at the end of the second telescopic beam, and a first spring is provided between the first telescopic beam and the second telescopic beam.

[0010] Furthermore, the end of the second telescopic beam is provided with a guide rod, the first spring is sleeved on the outside of the guide rod, the first telescopic beam is provided with a guide plate that is slidably connected to the guide rod, the end of the guide rod is provided with a slider, the guide plate is provided with a first groove and a second groove that are slidably in contact with the slider, the first groove and the second groove are arranged vertically, and the first telescopic beam is provided with a third groove that is flush with the second groove.

[0011] Furthermore, it also includes a first swing arm and a second swing arm rotatably mounted on the steel tie beam, with a first connecting rod and a second connecting rod rotatably connected to the first telescopic beam at both ends of the first swing arm and the second swing arm, respectively.

[0012] Furthermore, a drive shaft is rotatably connected to the steel beam, the first swing arm is keyed to the drive shaft, the second swing arm is rotatably connected to the drive shaft, a plurality of first paddle blocks are provided on one side of the first swing arm, a plurality of first paddle grooves are provided on the second swing arm, and inclined surfaces and flat surfaces that contact the first paddle grooves are respectively provided on both sides of the first paddle blocks, and a fixing nut is threadedly connected to the drive shaft, and a second spring is provided between the fixing nut and the first swing arm.

[0013] Furthermore, the end of the drive shaft is provided with a first gear, and a first rotating shaft and a second rotating shaft are rotatably connected to the steel beam. The first rotating shaft is provided with a second gear that meshes with the first gear, and a driven wheel is provided on the first rotating shaft. The side of the driven wheel is provided with several arc-shaped grooves, and a second shift groove is provided between two adjacent arc-shaped grooves. The second rotating shaft is provided with a drive wheel, and arc-shaped blocks and second shift blocks are respectively provided on both sides of the drive wheel. The arc-shaped blocks contact the arc-shaped grooves and restrict the drive shaft from rotating on the steel beam, and the second shift blocks contact the second shift grooves and drive the drive shaft to rotate on the steel beam.

[0014] Furthermore, a third rotating shaft is rotatably connected to the steel beam, a third gear is provided on the third rotating shaft, a fourth gear is provided on the second rotating shaft that meshes with the third gear, and a hexagonal nut is provided on one side of the third gear.

[0015] Furthermore, the steel beam is provided with several reinforcing plates, and a bearing is provided between the steel beam and the drive shaft.

[0016] Furthermore, there are several steel beams, and each of the drive shafts has a spline sleeve at its end that is splined to the adjacent drive shaft.

[0017] Furthermore, the vertical plate has notches at both ends for the limiting ball to pass through.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. Slide the fixing blocks at both ends of the vertical plate into the through grooves in the horizontal plate, so that the vertical plate is slidably placed on the steel support plate, so that the vertical plate and the first telescopic beam are on the same plane. Then, slide several first telescopic beams on the steel support beam respectively, and adjust the position of the limiting balls on several second telescopic beams so that they slide into the spherical grooves in the vertical plate respectively. At the same time, due to the rolling contact between the limiting balls and the spherical grooves, the vertical plate and the second telescopic beams can rotate relative to each other, thereby adapting to foundation pits of different shapes and sizes, eliminating the need to customize steel beams of different shapes and lengths, thereby reducing the cost required for manufacturing the support structure and shortening the construction period required for foundation pit projects;

[0020] 2. Move the steel beam to a suitable position, and further slide the first telescopic beam on the steel beam to make the limiting ball move further relative to the vertical plate. The limiting ball slides from the spherical groove into the limiting groove. The resistance generated by the contact between the side of the limiting ball and the limiting groove restricts the movement of the steel beam relative to the steel support plate. At the same time, it drives the vertical plate to move relative to the horizontal plate, so that the fixing blocks at both ends of the vertical plate enter the fixing groove. The resistance generated by the contact between the fixing blocks and the fixing groove restricts the movement of the vertical plate on the steel support plate, thereby further improving the stability of the overall structure, improving the support effect of the foundation pit, further resisting the soil pressure, water pressure and external load of the foundation pit sidewall, and improving the construction safety of deep foundation pit excavation.

[0021] In addition, the vertical plates and steel support plates, as well as the horizontal plates and steel beams, can be fixed without welding or using bolts in the foundation pit. This simplifies the operation steps for fixing the steel support plates and steel beams, further shortens the construction period required for the foundation pit project, and reduces the labor intensity of the workers.

[0022] 3. When the second telescopic beam needs to be installed, the first spring is sleeved on the outside of the guide rod to limit the spring and ensure that its rebound force is on the same straight line as the second telescopic beam. This effectively resists the soil pressure, water pressure and external load force of the pit sidewall, and improves the construction safety of deep pit excavation. Then, the second telescopic beam is slid into the first telescopic beam, so that the slider at the end of the guide rod passes through the first groove of the guide plate, and the first spring is compressed at the same time. Then, by rotating the first telescopic beam, the slider is aligned with the second groove that is perpendicular to the first groove. Then, the external force is removed. Under the action of the rebound force of the first spring, the second telescopic beam is driven to slide on the first telescopic beam, so that the slider slides into the second groove. The slider contacts the second groove through the sliding plate, which restricts the rotation and outward sliding of the second telescopic beam on the first telescopic beam. This prevents the first telescopic beam from easily sliding out of the second telescopic beam when installing the steel tie beam, thereby shortening the construction period required for the pit project.

[0023] In addition, the second telescopic beam does not need to be fixed by rotating the nut, which simplifies the operation steps and further shortens the construction period required for the foundation pit project. Furthermore, during the process of the steel beam supporting the steel support plate, the sliding plate will slide into the third sliding groove flush with the second sliding groove, which prevents the second telescopic beam from rotating unintentionally under the action of external force, causing the second telescopic beam to slide out from the first telescopic beam. At the same time, it further ensures the stability of the overall structure, effectively resists the soil pressure, water pressure and external load of the foundation pit sidewall, and improves the construction safety of deep foundation pit excavation.

[0024] 4. After the steel tie beam is fixed, the first telescopic beam is further slid on the steel tie beam. Due to the contact between the limiting ball and the vertical plate, the resistance generated restricts the sliding of the second telescopic beam relative to the vertical plate, allowing the second telescopic beam to slide on the first telescopic beam and compress the first spring between the first and second telescopic beams. The rebound force generated after the first spring is compressed is transmitted to the steel tie support plate through the second telescopic beam and the vertical plate, further resisting the soil pressure, water pressure and external load force of the foundation pit sidewall, and improving the construction safety of deep foundation pit excavation.

[0025] By sliding the second telescopic beam on the first telescopic beam, the overall length of the combination of the first and second telescopic beams can be adjusted to further adapt to foundation pits of different shapes and sizes. There is no need to customize steel tie beams of different shapes and lengths, thereby reducing the cost required for manufacturing the support structure. At the same time, the steel tie beams and connecting components adopt a prefabricated design concept and can be pre-assembled in the factory, reducing on-site construction procedures and shortening the construction period required for foundation pit projects. Attached Figure Description

[0026] Appendix Figure 1 This is a schematic diagram of the steel beam structure of the present invention.

[0027] Appendix Figure 2 This is a schematic diagram of the vertical plate of the present invention.

[0028] Appendix Figure 3 This is a schematic diagram of the structure of the horizontal plate of the present invention.

[0029] Appendix Figure 4 This is an appendix to the present invention. Figure 2 A magnified view of part B in the middle.

[0030] Appendix Figure 5 This is a schematic diagram of the structure of the first swing arm of the present invention.

[0031] Appendix Figure 6 This is a schematic diagram of the structure of the second swing arm of the present invention.

[0032] Appendix Figure 7 This is an appendix to the present invention. Figure 2 A magnified view of part C in the middle.

[0033] Appendix Figure 8 This is a schematic diagram of the structure of the first lever block of the present invention.

[0034] Appendix Figure 9 This is an appendix to the present invention. Figure 1 A magnified view of part A in the middle.

[0035] Appendix Figure 10 This is a schematic diagram of the drive wheel of the present invention.

[0036] The labels shown in the attached diagram:

[0037] 1. Steel support plate; 2. Steel beam; 3. First telescopic beam; 4. Vertical plate; 5. Spherical groove; 6. Limiting ball; 7. Limiting groove; 8. Horizontal plate; 9. Fixing block; 10. Through groove; 11. Fixing groove;

[0038] 12. Second telescopic beam; 13. First spring; 14. Guide rod; 15. Guide plate; 16. Slider; 17. First slide groove; 18. Second slide groove; 19. Third slide groove;

[0039] 20. First swing arm; 21. Second swing arm; 22. First connecting rod; 23. Second connecting rod; 24. Drive shaft; 25. First lever; 26. First lever groove; 27. Inclined surface; 28. Plane; 29. ​​Fixing nut; 30. Second spring;

[0040] 31. First gear; 32. First shaft; 33. Second shaft; 34. Second gear; 35. Driven wheel; 36. Arc groove; 37. Second shift groove; 38. Drive wheel; 39. Arc block; 40. Second shift block; 41. Third shaft; 42. Third gear; 43. Fourth gear; 44. Hexagonal nut;

[0041] 45. Reinforcing plate; 46. Bearing; 47. Spline sleeve; 48. Notch. Detailed Implementation

[0042] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0043] This invention provides a connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings, such as... Figures 1-3As shown, the structure includes a connection structure between several steel support plates 1 and steel beams 2. The steel beams 2 and the connecting components adopt a prefabricated design concept, allowing for pre-assembly in the factory, reducing on-site construction procedures and shortening the construction period required for the foundation pit project. The connection structure includes several first telescopic beams 3 slidably mounted radially on the steel beams 2, and vertical plates 4 slidably mounted on the steel support plates 1. Each vertical plate 4 has a spherical groove 5 along its vertical direction. The ends of the first telescopic beams 3 are provided with limiting balls 6 that roll in contact with the spherical grooves 5. Each vertical plate 4 has a limiting groove 7 that communicates with the spherical grooves 5. The side of the 6 contacts the limiting groove 7. The upper and lower sides of the steel support plate 1 are respectively provided with horizontal plates 8 that slide in contact with the vertical plate 4. The two ends of the vertical plate 4 are provided with fixing blocks 9. The horizontal plate 8 is provided with through grooves 10 for the fixing blocks 9 to pass through, and several fixing grooves 11 connected to the through grooves 10. The two sides of the fixing blocks 9 are respectively in contact with the fixing grooves 11. The horizontal plates 8 are pre-set on the upper and lower sides of the steel support plate 1. Then, several steel support plates 1 are placed in the foundation pit. Through the contact between the steel support plates 1 and the foundation pit, the soil pressure, water pressure and external load of the foundation pit side wall are initially resisted, and the construction safety of deep foundation pit excavation is improved.

[0044] The fixing blocks 9 at both ends of the vertical plate 4 are slid into the through grooves 10 of the horizontal plate 8, so that the vertical plate 4 is slidably set on the steel support plate 1, so that the vertical plate 4 and the first telescopic beam 3 are on the same plane 28. Then, several first telescopic beams 3 are slid on the steel beam 2 respectively, and the positions of the limiting balls 6 on several second telescopic beams 12 are adjusted so that they slide into the spherical grooves 5 on the vertical plate 4 respectively. At the same time, since the limiting balls 6 and the spherical grooves 5 are in rolling contact, the vertical plate 4 and the second telescopic beams 12 can rotate relative to each other, thereby adapting to foundation pits of different shapes and sizes. There is no need to customize steel beams 2 of different shapes and lengths, thereby reducing the cost required for manufacturing the support structure and shortening the construction period required for foundation pit projects.

[0045] Move the steel beam 2 to a suitable position. By sliding the first telescopic beam 3 on the steel beam 2, the limiting ball 6 moves further relative to the vertical plate 4, causing the limiting ball 6 to slide from the spherical groove 5 into the limiting groove 7. The resistance generated by the side of the limiting ball 6 contacting the limiting groove 7 restricts the movement of the steel beam 2 relative to the steel support plate 1. At the same time, it drives the vertical plate 4 to move relative to the horizontal plate 8, causing the fixing blocks 9 at both ends of the vertical plate 4 to enter the fixing groove 11. The resistance generated by the fixing blocks 9 contacting the fixing groove 11 restricts the movement of the vertical plate 4 relative to the steel support plate 1. The movement of the support plate 1 further improves the stability of the overall structure, enhances the support effect of the foundation pit, and further resists the soil pressure, water pressure and external load of the foundation pit sidewall, thereby improving the construction safety of deep foundation pit excavation. In addition, the vertical plate 4 and the steel support plate 1, and the horizontal plate 8 and the steel beam 2 can be fixed without welding or using bolts in the foundation pit throughout the process, thereby simplifying the operation steps of fixing the steel support plate 1 and the steel beam 2, further shortening the construction period required for the foundation pit project and reducing the labor intensity of workers.

[0046] Finally, the first telescopic beam 3 is further slid on the steel beam 2, and the force is applied to the steel support plate 1 through the first telescopic beam 3, thereby resisting the soil pressure, water pressure and external load of the pit sidewall, and improving the construction safety of deep pit excavation.

[0047] Preferred, such as Figure 4 As shown, a second telescopic beam 12 is slidably connected to the first telescopic beam 3. A limiting ball 6 is located at the end of the second telescopic beam 12. A first spring 13 is provided between the first telescopic beam 3 and the second telescopic beam 12. After the steel beam 2 is fixed, by further sliding the first telescopic beam 3 on the steel beam 2, the resistance generated by the limiting ball 6 contacting the vertical plate 4 restricts the sliding of the second telescopic beam 12 relative to the vertical plate 4, allowing the second telescopic beam 12 to slide on the first telescopic beam 3 and compress the first spring 13 between the first telescopic beam 3 and the second telescopic beam 12. The rebound force generated by the compression of the first spring 13 is transmitted to the steel support plate 1 through the second telescopic beam 12 and the vertical plate 4, further resisting the soil pressure, water pressure and external load of the pit sidewall, and improving the construction safety of deep pit excavation; at the same time, by sliding the second telescopic beam 12 on the first telescopic beam 3, the overall length of different combinations of the first telescopic beam 3 and the second telescopic beam 12 can be adjusted, further adapting to pits of different shapes and sizes, eliminating the need to customize steel beams 2 of different shapes and lengths, thereby reducing the cost required for manufacturing the support structure and shortening the construction period required for the pit project.

[0048] Preferred, such as Figure 4As shown, the second telescopic beam 12 has a guide rod 14 at its end, and the first spring 13 is sleeved on the outside of the guide rod 14. The first telescopic beam 3 has a guide plate 15 that is slidably connected to the guide rod 14. The end of the guide rod 14 has a slider 16. The guide plate 15 has a first groove 17 and a second groove 18 that are slidably in contact with the slider 16. The first groove 17 and the second groove 18 are vertically arranged. The first telescopic beam 3 has a third groove 19 that is flush with the second groove 18. When the second telescopic beam 12 needs to be installed... The first spring 13 is sleeved on the outside of the guide rod 14, which limits the spring 13 and ensures that its rebound force is on the same straight line as the second telescopic beam 12. This effectively resists the soil pressure, water pressure and external load of the pit sidewall, and improves the construction safety of deep pit excavation. Then, the second telescopic beam 12 is slid into the first telescopic beam 3, so that the slider 16 at the end of the guide rod 14 passes through the first groove 17 of the guide plate 15, and the first spring 13 is compressed at the same time. Then, by rotating the first telescopic beam 3, the slider 16 is aligned with the first groove. The second sliding groove 18 is vertically set. Then, the external force is removed, and under the rebound force of the first spring 13, the second telescopic beam 12 slides on the first telescopic beam 3, causing the slider 16 to slide into the second sliding groove 18. The slider contacts the second sliding groove 18, restricting the rotation and outward sliding of the second telescopic beam 12 on the first telescopic beam 3. This prevents the first telescopic beam 3 from easily sliding off the second telescopic beam 12 during the installation of the steel tie beam 2, thus shortening the construction period required for the foundation pit project. Furthermore, during the fixing of the second telescopic beam 12, rotation is not required. The use of nuts for fixing simplifies the operation steps of fixing the second telescopic beam 12 and further shortens the construction period required for the foundation pit project. In addition, during the process of the steel beam 2 supporting the steel support plate 1, the sliding plate will slide into the third sliding groove 19 which is flush with the second sliding groove 18, preventing the second telescopic beam 12 from rotating unintentionally under the action of external force, which would cause the second telescopic beam 12 to slide off the first telescopic beam 3. At the same time, it further ensures the stability of the overall structure, effectively resists the soil pressure, water pressure and external load of the foundation pit side wall, and improves the construction safety of deep foundation pit excavation.

[0049] Preferred, such as Figure 5 and Figure 6As shown, it also includes a first swing arm 20 and a second swing arm 21 rotatably mounted on the steel tie beam 2. The two ends of the first swing arm 20 and the second swing arm 21 are respectively rotatably connected to a first connecting rod 22 and a second connecting rod 23 rotatably connected to the first telescopic beam 3. By rotating the first swing arm 20 and the second swing arm 21 on the steel tie beam 2, since the two ends of the first connecting rod 22 are respectively rotatably connected to the first swing arm 20 and the first telescopic beam 3, and the two ends of the second connecting rod 23 are respectively rotatably connected to the second swing arm 21 and the first telescopic beam 3, the corresponding first telescopic beam 3 is simultaneously driven to slide on the steel tie beam 2. There is no need to set up a separate power device to drive the first telescopic beam 3 on both sides to slide on the steel tie beam 2, further reducing the space required for power device installation and the cost required for manufacturing.

[0050] Preferred, such as Figure 7 and Figure 8As shown, a drive shaft 24 is rotatably connected to the steel beam 2. The first swing arm 20 is keyed to the drive shaft 24, and the second swing arm 21 is rotatably connected to the drive shaft 24. A plurality of first lever blocks 25 are provided on one side of the first swing arm 20, and a plurality of first lever grooves 26 are provided on the second swing arm 21. An inclined surface 27 and a flat surface 28 that contact the first lever block 25 are respectively provided on both sides of the first lever block 25. A fixing nut 29 is threaded onto the drive shaft 24, and a second spring 30 is provided between the fixing nut 29 and the first swing arm 20. When the drive shaft 24 is rotated on the steel beam 2, the first swing arm 20 is driven to rotate along with the drive shaft 24 due to the keyed connection between the first swing arm 20 and the drive shaft 24. The rotation causes the first telescopic beams 3 on both sides to move on the steel beam 2, thus supporting the steel support plate 1. Furthermore, during the rotation of the first swing arm 20, the first lever 25 on one side of the first swing arm 20 slides into the corresponding first lever groove 26, and the inclined surface 27 on one side of the first lever 25 contacts the first lever groove 26. The resulting thrust drives the second swing arm 21 to rotate along with the first swing arm 20, causing the limiting ball 6 to contact the limiting groove 7, and driving the corresponding second telescopic beam 12 to move on the first telescopic beam 3 until the first spring 13 is in a taut state, thereby supporting the steel support plates 1 on both sides. Then, the drive wheel 38 is further rotated on the steel beam 2. Because the first spring 13 is in a taut state, the corresponding second telescopic beam 12 cannot move further on the first telescopic beam 3. The resulting resistance will limit the second swing arm 21 from further rotating with the first swing arm 20. Then, when the inclined surface 27 on one side of the first lever 25 contacts the first lever groove 26 again, the resulting force will cause the first swing arm 20 to slide on the drive rod until the first lever 25 slides out of the first lever groove 26, compressing the second spring 30 between the first swing arm 20 and the fixing nut 29, so that the first swing arm 20 can rotate relative to the second swing arm 21, thereby driving the limiting balls 6 on the other two sides to move further until the support of the steel support plates 1 on the other two sides is achieved, and then... Adaptable to foundation pits of different shapes and sizes, eliminating the need for custom-made steel beams 2 of different shapes and lengths, thereby reducing the cost of manufacturing the support structure and shortening the construction period of the foundation pit project; in addition, eliminating the need for separate power units to drive the first swing arm 20 and the second swing arm 21 to rotate, further reducing the space required for power unit installation and the cost of manufacturing; furthermore, by having a plane 28 on the other side of the first lever 25 in contact with the first lever groove 26, external forces are prevented from unintentionally causing the second swing arm 21 to rotate in the opposite direction relative to the first swing arm 20, ensuring the stability of the overall structure, effectively resisting the soil pressure, water pressure and external loads on the side walls of foundation pits of different sizes and shapes, thereby improving the construction safety of deep foundation pit excavation.

[0051] Preferred, such as Figure 9 and Figure 10As shown, the end of the drive shaft 24 is provided with a first gear 31. A first rotating shaft 32 and a second rotating shaft 33 are rotatably connected to the steel tie beam 2. The first rotating shaft 32 is provided with a second gear 34 that meshes with the first gear 31. By controlling the number of gears in the first gear 31 and the second gear 34, the transmission ratio between the drive shaft 24 and the first rotating shaft 32 is adjusted, thereby better controlling the swing angle of the first swing arm 20 and the second swing arm 21. This ensures that the rebound force generated after the first spring 13 is compressed is sufficient to resist the soil pressure, water pressure and external load of the side wall of the foundation pit of different sizes and shapes, while avoiding excessive compression of the first spring 13, which would affect the service life of the first spring 13. This further ensures the stability of the overall structure, effectively resists the soil pressure, water pressure and external load of the side wall of the foundation pit of different sizes and shapes, and thus improves the construction safety of deep foundation pit excavation. The first rotating shaft 32 is provided with a driven wheel 35, and the side of the driven wheel 35 is provided with several An arc-shaped groove 36 is provided, and a second chute 37 is provided between two adjacent arc-shaped grooves 36. A drive wheel 38 is provided on the second rotating shaft 33. Arc-shaped blocks 39 and second chute blocks 40 are respectively provided on both sides of the drive wheel 38. The arc-shaped blocks 39 contact the arc-shaped grooves 36 and restrict the drive shaft 24 from rotating on the steel tie beam 2, preventing external forces from unintentionally causing the first swing arm 20 and the second swing arm 21 to rotate in opposite directions relative to the first swing arm 20, ensuring the stability of the overall structure, effectively resisting the soil pressure, water pressure and external load of the side walls of foundation pits of different sizes and shapes, and thus improving the construction safety of deep foundation pit excavation; the second chute block 40 contacts the second chute 37 and drives the drive shaft 24 to rotate on the steel tie beam 2, driving the first telescopic beam 3 to slide on the steel tie beam 2, realizing the support of the side walls of foundation pits of different sizes and shapes, resisting the soil pressure, water pressure and external load of the side walls of foundation pits of different sizes and shapes, and thus improving the construction safety of deep foundation pit excavation.

[0052] Preferred, such as Figure 9 and Figure 10 As shown, a third rotating shaft 41 is rotatably connected to the steel beam 2. A third gear 42 is provided on the third rotating shaft 41, and a fourth gear 43 that meshes with the third gear 42 is provided on the second rotating shaft 33. A hexagonal nut 44 is provided on one side of the third gear 42. Torque is transmitted through the third gear 42 and the fourth gear 43, which can further adjust the transmission ratio between the drive shaft 24 and the first rotating shaft 32, better control the swing angle of the first swing arm 20 and the second swing arm 21, and at the same time, facilitate the subsequent use of the handle to rotate the hexagonal nut 44, avoid interference between the handle and other components, improve the efficiency of fixing the steel support plate 1, and shorten the construction period required for the foundation pit project.

[0053] Preferred, such as Figure 2 and Figure 5As shown, the steel beam 2 is provided with several reinforcing plates 45 to enhance the strength of the steel beam 2, better resist the soil pressure, water pressure and external load of the foundation pit sidewall, and improve the construction safety of deep foundation pit excavation; a bearing 46 is provided between the steel beam 2 and the drive shaft 24 to reduce the friction of the drive shaft 24 rotating on the steel beam 2, and facilitate the adjustment of the force applied by the first spring 13 on the steel support plate 1, further improving the resistance to the soil pressure, water pressure and external load of the foundation pit sidewall, and improving the construction safety of deep foundation pit excavation.

[0054] Preferred, such as Figure 2 As shown, there are several steel beams 2, which simultaneously support the steel support plate 1. This better resists the soil pressure, water pressure, and external loads on the sidewalls of the foundation pit, improving the construction safety of deep foundation pit excavation. Each drive shaft 24 has a spline sleeve 47 at its end that is splined to the adjacent drive shaft 24. When the uppermost drive shaft 24 is rotated, the torque generated by the rotation of the uppermost drive shaft 24 is transmitted to the lower drive shaft 24 because the adjacent drive shaft 24 has a spline sleeve 47 that is splined to the spline shaft. At the same time, it drives the first telescopic beam 3 on the corresponding steel beam 2 to move simultaneously, so that the limit balls 6 on the corresponding sides are all on the same straight line, ensuring that the limit balls 6 can smoothly enter the horizontal plate 8. In addition, it can ensure that the force exerted by each steel beam 2 on the steel support plate 1 remains consistent, avoiding the situation where the force on the steel support plate 1 is too small and cannot effectively resist the soil pressure, water pressure, and external loads on the sidewalls of the foundation pit, thereby improving the construction safety of deep foundation pit excavation.

[0055] Preferred, such as Figure 3 As shown, the vertical plate 4 has notches 48 at both ends for the limit ball 6 to pass through, which makes it easy to slide the limit ball 6 into the spherical groove 5 provided in the vertical plate 4, simplifying the operation steps of fixing the steel support plate 1 and the steel beam 2, further shortening the construction period required for the foundation pit project, and reducing the labor intensity of the workers.

[0056] Example 1

[0057] This invention provides a connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings, such as... Figures 1-3 As shown, the horizontal plate 8 is pre-installed on the upper and lower sides of the steel support plate 1, and then several steel support plates 1 are placed in the foundation pit. Through the contact between the steel support plate 1 and the foundation pit, the soil pressure, water pressure and external load of the foundation pit side wall are initially resisted, thereby improving the construction safety of deep foundation pit excavation.

[0058] The fixing blocks 9 at both ends of the vertical plate 4 are slid into the through grooves 10 of the horizontal plate 8, so that the vertical plate 4 is slidably set on the steel support plate 1, so that the vertical plate 4 and the first telescopic beam 3 are on the same plane 28. Then, several first telescopic beams 3 are slid on the steel beam 2 respectively, and the positions of the limiting balls 6 on several second telescopic beams 12 are adjusted so that they slide into the spherical grooves 5 on the vertical plate 4 respectively. At the same time, since the limiting balls 6 and the spherical grooves 5 are in rolling contact, the vertical plate 4 and the second telescopic beams 12 can rotate relative to each other, thereby adapting to foundation pits of different shapes and sizes. There is no need to customize steel beams 2 of different shapes and lengths, thereby reducing the cost required for manufacturing the support structure and shortening the construction period required for foundation pit projects.

[0059] Move the steel beam 2 to a suitable position, and further slide the first telescopic beam 3 on the steel beam 2 to move the limiting ball 6 further relative to the vertical plate 4. This allows the limiting ball 6 to slide from the spherical groove 5 into the limiting groove 7. The resistance generated by the side of the limiting ball 6 contacting the limiting groove 7 restricts the movement of the steel beam 2 relative to the steel support plate 1. Simultaneously, this causes the vertical plate 4 to move relative to the horizontal plate 8, allowing the fixing blocks 9 at both ends of the vertical plate 4 to enter the fixing grooves 11. The resistance generated by the fixing blocks 9 contacting the fixing grooves 11 further restricts the movement of the vertical plate 4 on the steel support plate 1, thereby further improving the overall structure. The stability is improved, the support effect of the foundation pit is enhanced, and the earth pressure, water pressure and external load of the foundation pit side wall are further resisted, thus improving the construction safety of deep foundation pit excavation. In addition, the vertical plate 4 and the steel support plate 1, and the horizontal plate 8 and the steel beam 2 can be fixed without welding or bolts in the foundation pit. This simplifies the operation steps of fixing the steel support plate 1 and the steel beam 2. At the same time, the steel beam 2 and the connecting components adopt the prefabricated design concept and can be pre-assembled in the factory, reducing on-site construction procedures, further shortening the construction period required for foundation pit projects and reducing the labor intensity of workers.

[0060] Finally, the first telescopic beam 3 is further slid on the steel beam 2, and the force is applied to the steel support plate 1 through the first telescopic beam 3, thereby resisting the soil pressure, water pressure and external load of the pit sidewall, and improving the construction safety of deep pit excavation.

[0061] Example 2

[0062] Based on Example 1, such as Figure 2 and Figure 4As shown, when the second telescopic beam 12 needs to be installed, the first spring 13 is sleeved on the outside of the guide rod 14 to limit the movement of the first spring 13, ensuring that its rebound force is on the same straight line as the second telescopic beam 12. This effectively resists the soil pressure, water pressure, and external load force of the pit sidewall, improving the construction safety of deep pit excavation. Then, the second telescopic beam 12 is slid into the first telescopic beam 3, so that the slider 16 at the end of the guide rod 14 passes through the first groove 17 provided on the guide plate 15, while compressing the first spring 13. Then, by rotating the first telescopic beam 3, the slider 16 is aligned with the second groove 18 set perpendicular to the first groove 17. Then, the external force is removed, and under the action of the rebound force of the first spring 13, the second telescopic beam 12 is driven to slide on the first telescopic beam 3, so that the slider 16 slides into the second groove 18. The 8-phase contact restricts the rotation and outward sliding of the second telescopic beam 12 on the first telescopic beam 3, preventing the first telescopic beam 3 from easily sliding off the second telescopic beam 12 during the installation of the steel tie beam 2, thereby shortening the construction period required for the foundation pit project. In addition, during the process of fixing the second telescopic beam 12, there is no need to rotate the nut for fixing, simplifying the operation steps of fixing the second telescopic beam 12 and further shortening the construction period required for the foundation pit project. Furthermore, during the process of the steel tie beam 2 supporting the steel support plate 1, the sliding plate will slide into the third sliding groove 19 flush with the second sliding groove 18, preventing the second telescopic beam 12 from unintentionally rotating under the action of external force, which would cause the second telescopic beam 12 to slide off the first telescopic beam 3. At the same time, it further ensures the stability of the overall structure, effectively resists the soil pressure, water pressure and external load of the foundation pit sidewall, and improves the construction safety of deep foundation pit excavation.

[0063] After the steel beam 2 is fixed, the first telescopic beam 3 is further slid on the steel beam 2. Due to the contact between the limiting ball 6 and the vertical plate 4, the resistance generated restricts the sliding of the second telescopic beam 12 relative to the vertical plate 4, allowing the second telescopic beam 12 to slide on the first telescopic beam 3 and compress the first spring 13 between the first telescopic beam 3 and the second telescopic beam 12. The rebound force generated after the first spring 13 is compressed is transmitted to the steel support plate 1 through the second telescopic beam 12 and the vertical plate 4, further resisting the soil pressure, water pressure and external load of the pit sidewall, and improving the construction safety of deep pit excavation. At the same time, by sliding the second telescopic beam 12 on the first telescopic beam 3, the overall length of different combinations of the first telescopic beam 3 and the second telescopic beam 12 can be adjusted, further adapting to pits of different shapes and sizes. There is no need to customize steel beams 2 of different shapes and lengths, thereby reducing the cost of manufacturing the support structure and shortening the construction period required for the pit project.

[0064] Example 3

[0065] Based on Example 2, such as Figures 5-10As shown, when the steel support plate 1 needs to be fixed, the hexagonal nut 44 is turned by the handle. The torque is transmitted through the cooperation of the third gear 42 and the fourth gear 43, which drives the second rotating shaft 33 to rotate on the steel beam 2. This drives the drive wheel 38 on the second rotating shaft 33 to rotate, causing the arc-shaped block 39 on one side of the drive wheel 38 to slide out of the arc-shaped groove 36, releasing the restriction on the rotation of the drive shaft 24 on the steel beam 2. At the same time, the second lever 40 on the other side of the drive wheel 38 contacts the second lever groove 37, and the resulting force drives the driven wheel 35 and the first rotating shaft 32 to rotate on the steel beam 2. The torque is transmitted through the first gear 31 and the second gear 34, which drives the drive shaft 24 to rotate on the steel beam 2. By controlling the number of gears of the first gear 31 and the second gear 34, as well as the third gear 42 and the fourth gear 43, the transmission ratio of the drive shaft 24 and the third rotating shaft 41 can be adjusted, which can better control the swing angle of the first swing arm 20 and the second swing arm 21, while avoiding interference between the handle and other components, thus improving the fixation of the steel support. The efficiency of plate 1 is improved, shortening the construction period required for the foundation pit project. By adjusting the transmission ratio of drive shaft 24 and first rotating shaft 32, the swing angle of first swing arm 20 and second swing arm 21 can be better controlled, ensuring that the rebound force generated after compression of first spring 13 is sufficient to resist soil pressure, water pressure and external loads on the side walls of foundation pits of different sizes and shapes. At the same time, excessive compression of first spring 13 is avoided, which would affect the service life of first spring 13. This further ensures the stability of the overall structure and effectively resists soil pressure, water pressure and external loads on the side walls of foundation pits of different sizes and shapes, thereby improving the construction safety of deep foundation pit excavation. In addition, after each rotation of drive shaft 24, the arc block 39 contacts arc groove 36 to restrict the rotation of drive shaft 24 on steel tie beam 2, preventing external forces from unintentionally causing first swing arm 20 and second swing arm 21 to rotate in opposite directions relative to first swing arm 20. This ensures the stability of the overall structure and effectively resists soil pressure, water pressure and external loads on the side walls of foundation pits of different sizes and shapes, thereby improving the construction safety of deep foundation pit excavation.

[0066] After the drive shaft 24 is rotated on the steel tie beam 2, the first swing arm 20 is keyed to the drive shaft 24, thereby causing the first swing arm 20 to rotate as well. Since the two ends of the first connecting rod 22 are rotatably connected to the first swing arm 20 and two of the first telescopic beams 3 respectively, and the two ends of the second connecting rod 23 are rotatably connected to the second swing arm 21 and the first telescopic beam 3 respectively, the corresponding first telescopic beam 3 is simultaneously driven to slide on the steel tie beam 2. Furthermore, there is no need to separately install a power device to drive the first telescopic beams 3 on both sides to slide on the steel tie beam 2, further reducing the space required for power device installation and the manufacturing cost. Additionally, during the rotation of the first swing arm 20, a mechanism provided on one side of the first swing arm 20... The first lever 25 slides into the corresponding first lever groove 26 and contacts the first lever groove 26 through the inclined surface 27 on one side of the first lever 25. The resulting thrust drives the second swing arm 21 to rotate together with the first swing arm 20. Since the two ends of the second connecting rod 23 are rotatably connected to the second swing arm 21 and the other two first telescopic beams 3 respectively, the limiting balls 6 at the ends of the other two first telescopic beams 3 are driven to contact the limiting grooves 7, and the corresponding second telescopic beam 12 is driven to move on the first telescopic beam 3 until the first spring 13 is in a taut state, thereby achieving support for the steel system support plates 1 on the other two sides. Then, the drive wheel 38 is further rotated on the steel system beam 2. Since the first spring 13 is located at the first spring 13, the first spring 13 is driven to rotate. In a taut state, the corresponding second telescopic beam 12 cannot move further on the first telescopic beam 3. The resulting resistance restricts the second swing arm 21 from further rotating with the first swing arm 20. Then, when the inclined surface 27 on one side of the first lever 25 contacts the first lever groove 26 again, the resulting force drives the first swing arm 20 to slide on the drive rod until the first lever 25 slides out of the first lever groove 26, compressing the second spring 30 between the first swing arm 20 and the fixing nut 29, allowing the first swing arm 20 to rotate relative to the second swing arm 21, thereby driving the limiting balls 6 on both sides to move further until the support of the steel support plates 1 on both sides is achieved, adapting to different shapes. For foundation pits of different sizes, there is no need to customize steel beams 2 of different shapes and lengths, thereby reducing the cost of manufacturing the support structure and shortening the construction period of the foundation pit project. In addition, there is no need to set up separate power units to drive the first swing arm 20 and the second swing arm 21 to rotate, further reducing the space required for power unit installation and the cost of manufacturing. Furthermore, by having a plane 28 on the other side of the first lever 25 in contact with the first lever groove 26, external forces are prevented from unintentionally causing the second swing arm 21 to rotate in the opposite direction relative to the first swing arm 20, ensuring the stability of the overall structure and effectively resisting the soil pressure, water pressure and external loads on the side walls of foundation pits of different sizes and shapes, thereby improving the construction safety of deep foundation pit excavation.

Claims

1. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings, comprising a connection structure disposed between a plurality of steel tie support plates (1) and steel tie beams (2), characterized in that: The connection structure includes a plurality of first telescopic beams (3) that are radially slidably disposed on the steel system beam (2), and a vertical plate (4) that is slidably disposed on the steel system support plate (1). The vertical plate (4) is provided with a spherical groove (5) along the vertical direction. The end of the first telescopic beam (3) is provided with a limiting ball (6) that rolls in contact with the spherical groove (5). The vertical plate (4) is provided with a limiting groove (7) that communicates with the spherical groove (5). The side of the limiting ball (6) is in contact with the limiting groove (7). The upper and lower sides of the steel system support plate (1) are respectively provided with a horizontal plate (8) that slides in contact with the vertical plate (4). The two ends of the vertical plate (4) are provided with fixing blocks (9). The horizontal plate (8) is provided with a through groove (10) through which the fixing blocks (9) pass, and a plurality of fixing grooves (11) that communicate with the through grooves (10). The two sides of the fixing blocks (9) are in contact with the fixing grooves (11).

2. The assembly for connecting prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 1, characterized in that: A second telescopic beam (12) is slidably connected to the first telescopic beam (3), and the limiting ball (6) is located at the end of the second telescopic beam (12). A first spring (13) is provided between the first telescopic beam (3) and the second telescopic beam (12).

3. The assembly for connecting prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 2, characterized in that: The second telescopic beam (12) has a guide rod (14) at its end. The first spring (13) is sleeved on the outside of the guide rod (14). The first telescopic beam (3) has a guide plate (15) that is slidably connected to the guide rod (14). The end of the guide rod (14) has a slider (16). The guide plate (15) has a first groove (17) and a second groove (18) that are slidably in contact with the slider (16). The first groove (17) and the second groove (18) are vertically arranged. The first telescopic beam (3) has a third groove (19) that is flush with the second groove (18).

4. The assembly for connecting prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 1, characterized in that: It also includes a first swing arm (20) and a second swing arm (21) rotatably mounted on the steel tie beam (2), with a first connecting rod (22) and a second connecting rod (23) rotatably connected to the first telescopic beam (3) at both ends of the first swing arm (20) and the second swing arm (21).

5. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 4, characterized in that: A drive shaft (24) is rotatably connected to the steel beam (2). The first swing arm (20) is keyed to the drive shaft (24). The second swing arm (21) is rotatably connected to the drive shaft (24). A plurality of first paddle blocks (25) are provided on one side of the first swing arm (20). A plurality of first paddle grooves (26) are provided on the second swing arm (21). An inclined surface (27) and a flat surface (28) that contact the first paddle grooves (26) are provided on both sides of the first paddle blocks (25). A fixing nut (29) is threadedly connected to the drive shaft (24). A second spring (30) is provided between the fixing nut (29) and the first swing arm (20).

6. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 5, characterized in that: The end of the drive shaft (24) is provided with a first gear (31). The steel beam (2) is rotatably connected with a first shaft (32) and a second shaft (33). The first shaft (32) is provided with a second gear (34) that meshes with the first gear (31). The first shaft (32) is provided with a driven wheel (35). The side of the driven wheel (35) is provided with several arc grooves (36). A second groove (37) is provided between two adjacent arc grooves (36). The second shaft (33) is provided with a drive wheel (38). The two sides of the drive wheel (38) are respectively provided with an arc block (39) and a second groove block (40). The arc block (39) contacts the arc groove (36) and restricts the drive shaft (24) from rotating on the steel beam (2). The second groove block (40) contacts the second groove (37) and drives the drive shaft (24) to rotate on the steel beam (2).

7. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 6, characterized in that: The steel beam (2) is rotatably connected to a third shaft (41), the third shaft (41) is provided with a third gear (42), the second shaft (33) is provided with a fourth gear (43) that meshes with the third gear (42), and a hexagonal nut (44) is provided on one side of the third gear (42).

8. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 5, characterized in that: The steel beam (2) is provided with several reinforcing plates (45), and a bearing (46) is provided between the steel beam (2) and the drive shaft (24).

9. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 5, characterized in that: The steel beams (2) are a plurality of each, and each of the drive shafts (24) is provided with a spline sleeve (47) at the end of which is splined and connected to the adjacent drive shaft (24).

10. A connection assembly for prefabricated steel supports and steel tie beams in civil and industrial buildings according to claim 1, characterized in that: The vertical plate (4) has notches (48) at both ends for the limiting ball (6) to pass through.

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