A structural adjustable connection device for a building floor seismic joint

Abstract

The application relates to a structure-adjustable connecting device for a building floor seismic gap, and relates to the technical field of building construction, which comprises a first connecting seat, a second connecting seat, a first connecting plate, a second connecting plate and a viscoelastic rubber rod, the first connecting seat is connected with the roof edge of one building unit, the second connecting seat is connected with the roof edge of another building unit, and the first connecting seat and the second connecting seat are respectively located on the two sides of the seismic gap, the first connecting plate is provided with a plurality of pieces, and each first connecting plate is arranged at equal intervals along the length direction of the first connecting seat, the second connecting plate is provided with a plurality of pieces, and each second connecting plate is arranged at equal intervals along the length direction of the second connecting seat, and a viscoelastic rubber rod is arranged between any adjacent first connecting plate and second connecting plate. The application has the effect that large shaking is not prone to occurring when being impacted, so that the residents are not prone to falling when stepping on the structure-adjustable connecting device on the roof.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a structurally adjustable connection device for seismic isolation joints in building floors. Background Technology

[0002] Seismic isolation joints, also known as earthquake-resistant joints, are generally located in sensitive areas of structural deformation and are laid along the entire top surface of the building foundation. This allows the building to be divided into several uniformly stiff units that deform independently. In current technology, the seismic isolation joints between the superstructure and the foundation of a seismically isolated building are often exposed, which can easily lead to many adverse effects: such as the intrusion of sand, stones, and garbage, which increases the friction between the superstructure and the foundation during an earthquake, reducing the seismic isolation effect; rainwater intrusion, as well as the convection of air and moisture, makes the downward-facing wall of the two adjacent units damp year-round, making it easier for mosquitoes and mold to grow; it affects the aesthetics of the building and poses safety hazards to children, easily causing psychological stress and insecurity among residents; during construction, it is easy to mistakenly fill the seismic isolation joints with bricks, stones, mortar, etc., making the upper and lower parts a single unit, thus rendering the seismic isolation function ineffective and causing great damage to the superstructure and even the overall structure of the building.

[0003] To address the aforementioned adverse effects, related technologies, such as the Chinese patent with authorization announcement number CN111945895B, propose an adjustable structural connection device for seismic isolation joints in building floors. This device includes two limiting mechanisms, with a connecting mechanism at the bottom of each limiting mechanism. The two limiting mechanisms are fixedly connected by a damping mechanism. A protective mechanism is fitted onto the outer wall of the damping mechanism, and a snap-fit ​​mechanism is provided on one side of the connecting mechanism. The snap-fit ​​mechanism is located at the bottom of the inner cavity of the limiting mechanism. The limiting mechanism includes a protective box, with first sliding rods fixedly connected to both ends of one side of the inner cavity of the protective box. A first sliding sleeve is slidably connected to the outer wall of the first sliding rods. This connection device can directly shield the seismic isolation joint. Furthermore, the support beam and limiting mechanism improve the overall assembly adaptability, thereby achieving the sealing effect of the seismic isolation joint while assisting in seismic sealing and energy absorption during earthquakes. The design of the first and second energy-absorbing grooves significantly improves the energy absorption effect of the support beam.

[0004] In the aforementioned technologies, the two long sides of the protective mechanism are connected to the roofs of two adjacent building units via shock-absorbing mechanisms, allowing the protective mechanism to cover the seismic isolation joints. Simultaneously, the shock-absorbing and limiting mechanisms work together to achieve energy dissipation and vibration reduction, not only absorbing the impact force on the protective mechanism but also buffering vibrations with the building units, thus improving the building's earthquake resistance. However, this method also results in poor stability of the protective mechanism. Once subjected to pressure, it will dissipate the pressure through elastic displacement, easily causing swaying. Since the roof is a crucial part of the building unit, a terrace is typically installed on the roof to utilize the space. Using a structurally adjustable connection device that is prone to swaying could lead to falls when residents walk across it, thus requiring improvement. Summary of the Invention

[0005] The purpose of this application is to provide a structurally adjustable connection device for seismic isolation joints in building floors, which is less likely to cause large swaying when subjected to impact, making it less likely for residents to fall when stepping on the structurally adjustable connection device on the roof.

[0006] This application provides an adjustable structural connection device for seismic isolation joints in building floors, which adopts the following technical solution.

[0007] An adjustable structural connection device for seismic isolation joints in building floors includes a first connecting seat, a second connecting seat, a first connecting plate, a second connecting plate, and viscoelastic rubber rods. The first connecting seat is connected to the roof edge of one building unit, and the second connecting seat is connected to the roof edge of another building unit. The first and second connecting seats are located on opposite sides of the seismic isolation joint. The first connecting plate consists of several pieces, all equidistantly arranged along the length of the first connecting seat, with one end of each piece fixedly connected to the first connecting seat. The second connecting plate consists of several pieces, all equidistantly arranged along the length of the second connecting seat, with one end of each piece fixedly connected to the second connecting seat. The first and second connecting plates are arranged alternately. The viscoelastic rubber rod consists of several pieces, with a viscoelastic rubber rod placed between any two adjacent first and second connecting plates. The axis of the viscoelastic rubber rod is horizontal, and both sides of the viscoelastic rubber rod are embedded in the adjacent first and second connecting plates.

[0008] Specifically, the first connecting seat allows one end of each first connecting plate to be fixed to the roof of one building unit, and the second connecting seat allows each second connecting plate to be fixed to the roof of another building unit. Through the viscoelastic rubber rod, when any adjacent first and second connecting plates are relatively displaced, a large frictional force is generated, thereby achieving the effect of energy dissipation and shock absorption. At the same time, it can meet the deformation requirements of the change in the distance between the two adjacent building roofs, and the stability is greater, and it can withstand a large vertical impact force.

[0009] Furthermore, both the first connecting seat and the second connecting seat include a horizontal plate and a vertical plate connected as one piece. The horizontal plate is fixedly connected to the top surface of the building unit, and the vertical plate is fixedly connected to the side of the building unit. Both the first connecting plate and the second connecting plate include a main plate and a sub plate connected as one piece. One side of the main plate is fixedly connected to the side of the vertical plate away from the building unit. The lower side of the sub plate is fixedly connected to the upper surface of the horizontal plate. The end of the sub plate near the seismic isolation joint is fixedly connected to one side of the upper end of the main plate.

[0010] Specifically, the first and second connecting seats, composed of a horizontal plate and a vertical plate, can be connected to the roof and side walls of the building unit simultaneously, ensuring the stability of the first and second connecting seats. The first and second connecting plates, composed of a main plate and a sub plate, can ensure the stress distribution of the first and second connecting plates in the horizontal and vertical directions, ensuring the stability of the first and second connecting plates in use.

[0011] Furthermore, several non-powered ventilators are provided on the side of the two vertical plates facing away from the building unit wall. Each non-powered ventilator is arranged along the length of the seismic isolation joint. The non-powered ventilators located on the first connecting seat are arranged alternately with each of the first connecting plates, and the non-powered ventilators located on the second connecting seat are arranged alternately with each of the second connecting plates.

[0012] Specifically, by using a non-powered ventilator, the interior of the seismic isolation joint can be ventilated, allowing the humid air inside the joint to be expelled in a timely manner. Furthermore, the temperature of the side wall of the building unit located at the seismic isolation joint is made closer to that of the side wall in the center, resulting in a relatively uniform temperature across the various side walls of the building unit.

[0013] Furthermore, each of the aforementioned non-powered ventilators includes a cover plate, arc-shaped guide vanes, and a connecting ring. Several arc-shaped guide vanes are arranged equidistantly around the axis of the cover plate. The upper end of each arc-shaped guide vane is fixedly connected to the cover plate, and the lower end of each arc-shaped guide vane is fixedly connected to the connecting ring. Each connecting ring is rotatably connected to a mounting seat, and each mounting seat is respectively located on the two long sides of the vibration isolation joint.

[0014] Specifically, when the outside natural wind blows over the non-powered ventilator, it can push the arc-shaped guide vanes, thereby achieving the effect of driving the non-powered ventilator to rotate, so that the non-powered ventilator can frequently ventilate and exchange air. The mounting base allows the non-powered ventilator to be installed on the top of the seismic isolation joint.

[0015] Furthermore, each of the mounting bases is provided with a through hole coaxial with the non-powered ventilator, and each of the mounting bases is also provided with a clearance groove on its upper surface. The bottom surface of the clearance groove communicates with the through hole. A return spring is installed inside the mounting base. The lower end of the return spring is installed on the bottom surface of the clearance groove, and a support ring is installed on the upper end of the return spring. The non-powered ventilator is rotatably mounted on the support ring.

[0016] Specifically, the clearance groove can provide clearance, allowing the non-powered ventilator to be cushioned and damped by the return spring when it is impacted. Furthermore, by applying force to the non-powered ventilator, the return spring can be compressed, allowing the non-powered ventilator to be hidden in the clearance groove. This makes the upper surface of the adjustable connection device relatively flat in a short time, allowing residents to push larger items through the vibration isolation joint.

[0017] Furthermore, a connecting shaft coaxial with the cover plate is provided on the bottom surface of the cover plate, a fixed ring coaxial with the support ring is provided inside the support ring, a plurality of connecting rods connected to the outer wall of the fixed ring are provided on the inner wall of the support ring, the connecting shaft passes through the fixed ring, and a ball bearing fixedly connected to the outer ring is sleeved on the outer wall of the connecting shaft.

[0018] Specifically, the rotating connection between the non-powered ventilator and the mounting base can be achieved by using a connecting shaft, ball bearings and a retaining ring, and the structure is simple and easy to implement.

[0019] Furthermore, it also includes side baffles, of which two are provided. The two side baffles are respectively vertically installed at both ends of the seismic isolation joint. Two opposite sides of the two side baffles are respectively fixedly connected to one side wall of two adjacent building units facing each other. The upper ends of the two side baffles extend to the roof of the building unit, and the lower ends of the two side baffles are set close to the ground. A fresh air inlet is reserved between the lower ends of the two side baffles and the ground.

[0020] Specifically, by utilizing the cooperation between the side baffle and the side wall of the building unit, a fresh air inlet close to the ground can be formed between the side walls of the two building units, so that outside air can only enter the seismic isolation joint through the lower end of the seismic isolation joint, thereby improving the ventilation effect inside the seismic isolation joint.

[0021] Furthermore, the side baffle includes a first arc-shaped plate and a second arc-shaped plate that are mirror images of each other. The two ends of the first arc-shaped plate and the second arc-shaped plate are respectively connected to the opposite side walls of two adjacent building units. The two first arc-shaped plates and the second arc-shaped plate together with the side walls of the building units form an injection channel. A plunger is installed at the lower end of the injection channel, and the injection channel is filled with structural adhesive.

[0022] Specifically, the first and second arc-shaped plates can be used to form a side baffle to shield the side of the seismic isolation joint. Structural adhesive can be used to ensure the stability of the side baffle, and a plunger can be used to prevent the structural adhesive from detaching directly from the side baffle during injection.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. It is not easy to shake much when it is impacted, so that residents are less likely to fall when stepping on the adjustable connection device on the roof.

[0025] 2. It can ventilate the interior of the seismic isolation joint, so that the humidity and temperature inside the seismic isolation joint are the same as those outside, and the weather conditions affecting the outer wall of the building unit near the seismic isolation joint are the same as those of the outer walls in other directions. Attached Figure Description

[0026] Figure 1 This is a front view schematic diagram of the adjustable connection device according to an embodiment of this application;

[0027] Figure 2 This is a side view of the adjustable connection device according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the structure of the side stop according to an embodiment of this application;

[0029] Figure 4 This is a cross-sectional schematic diagram of the side stop according to an embodiment of this application;

[0030] Figure 5 This is a side view of the upper shielding member according to an embodiment of this application;

[0031] Figure 6 This is a top view of the upper shielding member according to an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of the structure of the first connecting seat and the first connecting plate according to an embodiment of this application;

[0033] Figure 8 This is a schematic diagram of the installation position of the non-powered ventilator according to an embodiment of this application;

[0034] Figure 9 This is an installation diagram of a non-powered ventilator according to an embodiment of this application;

[0035] Figure 10 This is a schematic diagram of the support ring structure according to an embodiment of this application.

[0036] Explanation of the labels in the diagram:

[0037] 1. Upper shield; 11. First connecting seat; 111. Horizontal plate; 112. Vertical plate; 12. Second connecting seat; 13. First connecting plate; 131. Main plate; 132. Sub-plate; 133. Embedded groove; 14. Second connecting plate; 15. Viscoelastic rubber rod; 16. Installation area; 2. Side baffle; 21. First arc-shaped plate; 22. Second arc-shaped plate; 23. Plunger; 24. Structural adhesive; 3. Non-powered ventilator; 31. Cover plate; 32. Arc-shaped guide vane; 33. Connecting ring; 34. Connecting shaft; 35. Ball bearing; 4. Building unit; 5. Fresh air inlet; 6. Mounting seat; 61. Leaving groove; 62. Through hole; 7. Return spring; 71. Support ring; 72. Fixing ring; 73. Connecting rod. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1 - Appendix Figure 10 This application will be described in further detail below.

[0039] An adjustable structural connection device for seismic isolation joints in building floors, as described in the reference. Figure 1 and Figure 2 It includes an upper shield 1, side shields 2, and a non-powered ventilator 3. The upper shield 1 is located between the upper sides of two adjacent building units 4. Several non-powered ventilators 3 are provided and installed on the upper shield 1. Two side shields 2 are provided and both side shields 2 are vertically installed. The two side shields 2 are respectively installed on the two vertical sides of the seismic isolation joint. A fresh air inlet 5 is reserved between the lower end of the two side shields 2 and the ground. When the non-powered ventilator 3 rotates using natural wind, it can exhaust and ventilate the interior of the seismic isolation joint.

[0040] Reference Figure 3 and Figure 4Each side baffle 2 has two opposite sides that are fixedly connected to the opposite side wall of two adjacent building units 4. The upper ends of the two side baffles 2 extend to the roof of the building unit 4 and are in contact with the bottom surface of the upper baffle 1. The lower ends of the two side baffles 2 are set close to the ground. Each side baffle 2 includes a first arc plate 21, a second arc plate 22, a plunger 23 and structural adhesive 24. The first arc plate 21 and the second arc plate 22 are mirror images of each other and their two long sides are connected to the opposite side wall of two adjacent building units 4. The first arc plate 21 and the second arc plate 22 and the side wall of the building unit 4 enclose an adhesive injection channel. The plunger 23 is installed in the lower end of the adhesive injection channel and the structural adhesive 24 is filled in the adhesive injection channel.

[0041] Reference Figure 5 and Figure 6 The upper shielding component 1 includes a first connecting seat 11, a second connecting seat 12, a first connecting plate 13, a second connecting plate 14, and a viscoelastic rubber rod 15. The first connecting seat 11 and the second connecting seat 12 are located on both sides of the seismic isolation joint. The first connecting plate 13 is provided with several pieces, each piece of the first connecting plate 13 is vertically arranged, and each piece of the first connecting plate 13 is equidistantly arranged along the length direction of the first connecting seat 11. One end of each piece of the first connecting plate 13 is fixedly connected to the first connecting seat 11 as a whole. The second connecting plate 14 is provided with several pieces, each piece of the second connecting plate 14 is vertically arranged, and each piece of the second connecting plate 14 is fixedly connected to the first connecting seat 11 as a whole. The second connecting plates 14 are arranged at equal intervals along the length of the second connecting seat 12. One end of each second connecting plate 14 is fixedly connected to the second connecting seat 12 as a whole. The first connecting plates 13 and the second connecting plates 14 are arranged alternately. Several viscoelastic rubber rods 15 are provided. A viscoelastic rubber rod 15 is provided between any two adjacent first connecting plates 13 and second connecting plates 14. The axis of each viscoelastic rubber rod 15 is horizontal, and the two sides of each viscoelastic rubber rod 15 are respectively embedded in the adjacent first connecting plates 13 and second connecting plates 14.

[0042] The installation area 16 for installing the non-powered ventilator 3 is formed by the enclosing of any two adjacent first connecting plates 13 and any two adjacent second connecting plates 14.

[0043] Reference Figure 5 and Figure 7The first connecting seat 11 is connected to the roof edge of one of the building units 4, and the second connecting seat 12 is connected to the roof edge of the other building unit 4. Both the first connecting seat 11 and the second connecting seat 12 include a horizontal plate 111 and a vertical plate 112 connected as one unit. When the first connecting seat 11 or the second connecting seat 12 is connected to the building unit 4, the horizontal plate 111 is fixedly connected to the top surface of the building unit 4 using wall nails, and the vertical plate 112 is fixedly connected to the side of the building unit 4 using wall nails.

[0044] Reference Figure 5 and Figure 7 The first connecting plate 13 and the second connecting plate 14 both include a main plate 131 and a secondary plate 132 connected as one piece. One side of the main plate 131 is fixedly connected to the side of the vertical plate 112 away from the building unit 4. The lower side of the secondary plate 132 is fixedly connected to the upper surface of the horizontal plate 111. The end of the secondary plate 132 near the seismic isolation joint is fixedly connected to one side of the upper end of the main plate 131. Several grooves are provided on both sides of the main plate 131 along the vertical direction of the main plate 131. The cross-section of each viscoelastic rubber rod 15 is circular, and the two sides of each viscoelastic rubber rod 15 are respectively embedded in the two grooves 133 provided.

[0045] Reference Figure 8 On the side of each vertical plate 112 facing away from the wall of the building unit 4, there are several mounting seats 6 arranged along the length of the seismic isolation joint. Each non-powered ventilator 3 is installed on the mounting seat 6, and the air inlet of each non-powered ventilator 3 is connected to the seismic isolation joint, and the air outlet of each non-powered ventilator 3 is connected to the outside. Among them, the mounting seats 6 located on the first connecting seat 11 are arranged alternately with each first connecting plate 13, and the mounting seats 6 located on the second connecting seat 12 are arranged alternately with each second connecting plate 14.

[0046] Reference Figure 8 and Figure 9Each non-powered ventilator 3 includes a cover plate 31, arc-shaped guide vanes 32, a connecting ring 33, and a connecting shaft 34. Several arc-shaped guide vanes 32 are arranged equidistantly around the axis of the cover plate 31. The upper end of each arc-shaped guide vane 32 is fixedly connected to the cover plate 31, and the lower end of each arc-shaped guide vane 32 is fixedly connected to the connecting ring 33. The connecting shaft 34 is coaxial with the cover plate 31 and is located on the bottom surface of the cover plate 31. Each mounting base 6 has a through hole 62 coaxial with the non-powered ventilator 3. Each mounting base 6 also has a relief groove 61 on its upper surface. The bottom surface of the relief groove 61 communicates with the through hole 62. A return spring 7 is installed in the mounting base 6. The lower end of the return spring 7 is installed on the bottom surface of the relief groove 61, and a support ring 71 is installed on the upper end of the return spring 7. The connecting shaft 34 is rotatably mounted on the support ring 71.

[0047] Specifically, refer to Figure 10 A fixed ring coaxial with the support ring 71 is provided inside the support ring 71. Several connecting rods connected to the outer wall of the fixed ring are provided on the inner wall of the support ring 71. The lower end of the connecting shaft 34 passes through the fixed ring. A ball bearing 35 that is fixedly connected to the outer ring is sleeved on the outer wall of the connecting shaft 34.

[0048] How this application works:

[0049] Using the first connecting seat 11, one end of each first connecting plate 13 can be fixed to the roof of one of the building units 4. Using the second connecting seat 12, each second connecting plate 14 can be fixed to the roof of another building unit 4. Through the viscoelastic rubber rod 15, when any adjacent first connecting plates 13 and second connecting plates 14 undergo relative displacement, a large frictional force is generated, thereby achieving the effect of energy dissipation and shock absorption. At the same time, it can meet the deformation requirements of the change in the distance between the two adjacent building roofs, and the stability is greater, and it can withstand a large vertical impact force.

[0050] By using the non-powered ventilator 3, the interior of the seismic isolation joint can be vented, and the humid air inside the seismic isolation joint can be discharged in a timely manner. In addition, the temperature of the side wall of the building unit 4 located at the seismic isolation joint is close to that of the side wall in the center, so that the temperature of each side wall of the building unit 4 is relatively uniform.

[0051] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable structural connection device for seismic isolation joints in building floors, characterized in that, The system includes a first connecting seat (11), a second connecting seat (12), a first connecting plate (13), a second connecting plate (14), and a viscoelastic rubber rod (15). The first connecting seat (11) is connected to the roof edge of one of the building units (4), and the second connecting seat (12) is connected to the roof edge of another building unit (4). The first connecting seat (11) and the second connecting seat (12) are located on both sides of the seismic isolation joint. The first connecting plate (13) consists of several pieces, and each first connecting plate (13) is equidistantly arranged along the length of the first connecting seat (11). One end of each first connecting plate (13) is connected to the first connecting seat. (11) Fixedly connected as one piece, the second connecting plate (14) is provided with several pieces, and each second connecting plate (14) is arranged equidistantly along the length direction of the second connecting seat (12). One end of each second connecting plate (14) is fixedly connected to the second connecting seat (12) as one piece. Each first connecting plate (13) and second connecting plate (14) is arranged alternately. The viscoelastic rubber rod (15) is provided with several pieces. A viscoelastic rubber rod (15) is provided between any adjacent first connecting plate (13) and second connecting plate (14). The axis of the viscoelastic rubber rod (15) is horizontally arranged, and the viscoelastic rubber rod (15) is provided with several pieces. 5) The two sides are respectively embedded in the adjacent first connecting plate (13) and second connecting plate (14); the first connecting seat (11) and the second connecting seat (12) each include a horizontal plate (111) and a vertical plate (112) connected as one piece, the horizontal plate (111) is fixedly connected to the top surface of the building unit (4), the vertical plate (112) is fixedly connected to the side of the building unit (4), the first connecting plate (13) and the second connecting plate (14) each include a main plate (131) and a secondary plate (132) connected as one piece, one side of the main plate (131) is fixedly connected to the side of the vertical plate (112) away from the building unit (4), the secondary plate (132) is fixedly connected to the side of the vertical plate (112) away from the building unit (4), the secondary ...1) is fixedly connected to the side of the vertical plate (112) away from the building unit (4), the secondary plate (131) is fixedly connected to the side of the vertical plate (112) away from the building unit (4). The lower side of the plate (132) is fixedly connected to the upper surface of the horizontal plate (111), and the end of the sub-plate (132) near the seismic isolation joint is fixedly connected to one side of the upper end of the main plate (131); several non-powered ventilators (3) are provided on the side of the two vertical plates (112) away from the wall of the building unit (4), and each non-powered ventilator (3) is arranged along the length of the seismic isolation joint. Each non-powered ventilator (3) on the first connecting seat (11) is arranged alternately with each first connecting plate (13), and each non-powered ventilator (3) on the second connecting seat (12) is arranged alternately with each second connecting plate (14).It also includes side baffles (2), of which two side baffles (2) are provided. The two side baffles (2) are respectively vertically installed on both ends of the seismic isolation joint. Two opposite sides of the two side baffles (2) are respectively fixedly connected to the opposite side wall of two adjacent building units (4). The upper ends of the two side baffles (2) extend to the roof of the building unit (4), and the lower ends of the two side baffles (2) are set close to the ground. A fresh air inlet (5) is reserved between the lower ends of the two side baffles (2) and the ground. The side baffle (2) includes a first arc-shaped plate (21) and a second arc-shaped plate (22) that are mirror images of each other. The two ends of the first arc-shaped plate (21) and the second arc-shaped plate (22) are respectively connected to the opposite side walls of two adjacent building units (4). The two first arc-shaped plates (21) and the second arc-shaped plate (22) together with the side walls of the building units (4) form an injection channel. A plunger (23) is installed at the lower end of the injection channel, and the injection channel is filled with structural adhesive (24).

2. The adjustable structural connection device for seismic isolation joints in building floors according to claim 1, characterized in that, Each of the non-powered ventilators (3) includes a cover plate (31), an arc-shaped guide vane (32), and a connecting ring (33). The arc-shaped guide vane (32) is arranged in a circumferentially equidistant manner around the axis of the cover plate (31). The upper end of each arc-shaped guide vane (32) is fixedly connected to the cover plate (31), and the lower end of each arc-shaped guide vane (32) is fixedly connected to the connecting ring (33). Each connecting ring (33) is rotatably connected to a mounting seat (6), and each mounting seat (6) is respectively set on the two long sides of the vibration isolation joint.

3. The adjustable structural connection device for seismic isolation joints in building floors according to claim 2, characterized in that, Each of the mounting bases (6) is provided with a through hole (62) coaxial with the non-powered ventilator (3), and each of the mounting bases (6) is also provided with a relief groove (61) on its upper surface. The bottom surface of the relief groove (61) is connected to the through hole (62). A return spring (7) is installed in the mounting base (6). The lower end of the return spring (7) is installed on the bottom surface of the relief groove (61). A support ring (71) is installed on the upper end of the return spring (7). The non-powered ventilator (3) is rotatably mounted on the support ring (71).

4. The adjustable structural connection device for seismic isolation joints in building floors according to claim 3, characterized in that, The bottom surface of the cover plate (31) is provided with a connecting shaft (34) coaxial with the cover plate (31). The support ring (71) is provided with a fixing ring coaxial with the support ring (71). The inner wall of the support ring (71) is provided with several connecting rods connected to the outer wall of the fixing ring. The connecting shaft (34) passes through the fixing ring. The outer wall of the connecting shaft (34) is fitted with a ball bearing (35) that is fixedly connected to the fixing ring.

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