Flexible buffer connecting device for building prefabricated parts

Abstract

The invention discloses a flexible buffer connecting device for building prefabricated components, relates to the technical field of vibration prevention of fabricated building structures, and aims to solve the technical problem that connecting parts of the building components such as prefabricated walls are easily damaged by impact vibration during transportation and installation. Comprising a prefabricated wall body, a mounting piece arranged on one side of the prefabricated wall body, a clamping and connecting mechanism arranged on one side of the prefabricated wall body, a buffering assembly arranged on one side of the prefabricated wall body and located on the left side of the clamping and connecting mechanism, and a limiting assembly arranged on the right side of the clamping and connecting mechanism. The foldable clamping plates are arranged at the connecting positions of the prefabricated wall bodies, and the foldable clamping plates are flexibly attached to the connecting interface of the fixed component when unfolded; a conversion cylinder and a spherical valve body in the buffer assembly are linked with a building structure pipeline system, an airflow channel is intelligently adjusted according to the component state, the impact energy of the connecting part of the building structure is effectively absorbed, and the connecting reliability and the anti-seismic property of the prefabricated building structure are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-vibration of prefabricated building structures, and more specifically, to a flexible buffer connection device for building prefabricated components. Background Art

[0002] In the field of prefabricated buildings, the transportation of prefabricated components is a key link in the construction process. However, for a long time, the problem of component damage caused by impact and vibration during transportation has severely restricted the development of the industry. According to industry statistics, under traditional transportation methods, the damage rate of prefabricated components is as high as 10% - 15%, and more than 80% of the damage is concentrated in the connection parts, corners and surfaces, seriously affecting the construction quality and project progress.

[0003] Currently, when transporting or installing prefabricated building components with different heights, such as the height difference between two prefabricated building walls and the prefabricated building window frame therebetween (with different heights) or the connection between two prefabricated building walls (with the same height), etc., the following several fixing methods are mainly used for prefabricated building components during transportation: Chain / steel wire rope bundling: Pass the steel wire rope through the lifting rings or reserved holes of the component and tighten and fix it with a turnbuckle; however, this method is a rigid fixation and lacks buffering ability, and local damage of the component is likely to occur due to stress concentration during sudden braking or bumping; Steel profile clamp clamping: Weld frames using channel steel, angle steel, etc., and clamp both sides of the component through bolts or hydraulic devices; however, the clamp is in hard contact with the component, and the vibration is directly transmitted, easily causing corner cracking or surface wear; Welding temporary fixation: Directly weld between the embedded steel plate of the component and the transportation vehicle frame, and cut and remove it after transportation; however, the operation is cumbersome, and the welding heat effect may damage the component. Secondary treatment is required after disassembly, resulting in low efficiency. The traditional fixing methods are all rigid connections and cannot effectively absorb the impact energy brought by road bumps, sudden braking or turning inertia, resulting in stress concentration inside the component, increasing the risk of damage. Long-term vibration will cause the expansion of micro-cracks inside the component, reducing the structural durability, especially having a significant impact on components with decorative surfaces or precision interfaces. In view of this, we propose a flexible buffer connection device for building prefabricated components. Summary of the Invention

[0004] The purpose of the present invention is to provide a flexible buffer connection device for building prefabricated components to solve the technical problem that the connection parts of building components such as prefabricated walls are easily damaged by impact and vibration during transportation and installation.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a flexible buffer connection device for building precast components, including a precast wall, a clamping connection mechanism arranged on one side of the precast wall, a buffer component arranged on the left side of the clamping connection mechanism on one side of the precast wall, and a limiting component arranged on the right side of the clamping connection mechanism. The clamping connection mechanism includes a clamping plate with a foldable structure on one side of the precast wall, and clamping structures are symmetrically arranged on the right side of the clamping plate; The buffer component includes a conversion cylinder on one side of the precast wall. A left pipeline and a right pipeline are arranged on the surface of the conversion cylinder, and a spherical valve body is fixedly sleeved inside the conversion cylinder; When the clamping plate is unfolded, the clamping structure is driven by gas to make it fit and fix with the upper and lower surfaces of the building precast component, which is suitable for building precast components with fragile surfaces and structures that need to be transported or installed suspended; when the clamping plate is folded, it can fix the upper half of the large building precast component, which is suitable for the transportation and installation fixation of large building precast components; When the building precast component turns during suspended transportation, due to inertia, the building precast component tilts left or right from the horizontal state; when the building precast component is in the horizontal state, the left pipeline and the right pipeline are in communication, and a stable supporting force can be applied to the suspended building precast component; when the building precast component tilts to the left due to inertia, the left pipeline is in communication and the right pipeline is not in communication, applying a lifting force to the left side of the building precast component; when the building precast component tilts to the right due to inertia, the right pipeline is in communication and the left pipeline is not in communication, applying a downward pressure to the right side of the building precast component. The present invention sets a foldable clamping plate at the connection of the precast wall. When unfolded, it flexibly fits and fixes the connection interface of the component; the conversion cylinder, spherical valve body in the buffer component are linked with the building structure pipeline system, and the air flow path is intelligently adjusted according to the component state, effectively absorbing the impact energy at the connection part of the building structure, and significantly improving the connection reliability and seismic performance of the precast building structure.

[0006] Preferably, mounting plates are arranged on one side of the precast wall.

[0007] Preferably, the clamping plate is composed of a long plate and an end plate, and the long plate is hinged to the end plate.

[0008] Preferably, the clamping connection mechanism further includes a first motor. The first motor is fixedly connected to one side of the long plate, and the output shaft of the first motor corresponds to the horizontal axis at the hinged part of the end plate. A cam is fixedly connected to the output end of the first motor, and the cam is movably sleeved on the surface of the convex block on the end plate.

[0009] Preferably, pneumatic sliders are slidably connected in a symmetric structure in the holes on the clamping plate. A mounting plate is fixedly connected to one side of each pneumatic slider. Support plates are rotatably connected in a symmetric structure between each pneumatic slider and the mounting plate. Card slots are arranged on the upper surfaces of each support plate.

[0010] Preferably, a torsion spring is movably sleeved at the end of each support plate, and one end of the torsion spring is fixedly connected to the pneumatic slider. A bolt is fixedly connected to one side of each pneumatic slider. A pressing plate is movably sleeved on the surface of each bolt. A nut is rotatably connected to one side of each pressing plate, and the nut is threadedly matched with the bolt.

[0011] Preferably, the buffer assembly further includes a fixing frame. The fixing frame is fixedly connected to the right side of the mounting piece. A sealing cylinder is hinged to the right side of the fixing frame. A hexagonal column is fixedly connected to the left side of the clamping plate, and the hexagonal column is slidably and sealingly adapted inside the sealing cylinder. A plurality of upper notches and lower notches are arranged in a linear array on the surface of the hexagonal column.

[0012] Preferably, the conversion cylinder is communicated with the surface of the sealing cylinder. A left pipeline and a right pipeline are arranged on the surface of the conversion cylinder. The left pipeline is communicated with the surface of the sealing cylinder located at the upper notch, and the right pipeline is also communicated with the surface of the sealing cylinder located at the lower notch.

[0013] Preferably, the spherical valve body is fixedly sleeved inside the conversion cylinder. Two flow holes are symmetrically arranged on the surface of the spherical valve body, and the two flow holes are respectively communicated with the left pipeline and the right pipeline. A switch valve is rotatably sleeved inside the spherical valve body. Two valve plates are arranged diagonally on the surface of the switch valve, and the valve plates are sealingly adapted to the flow holes. A counterweight block located outside the conversion cylinder is fixedly connected to one side of the switch valve through a plug rod. A cylinder is fixedly connected to the inner wall of the mounting piece. The cylinder is communicated with the spherical valve body through a hose, and the hose passes through the fixing frame. The flexible buffer connection device for building prefabricated components of the present invention realizes efficient protection and scene adaptation through the collaborative innovation of multiple structures. The precast wall driven by hydraulic pressure ensures precise control. The foldable clamping connection mechanism can, through the unfolded or folded mode, not only flexibly and non - contact fix fragile suspended components by using pneumatic sliders and card slots to avoid rigid damage, but also realize the strong - load bearing fixation of heavy components through the upper - surface mounting plate and hydraulic claws.

[0014] Preferably, the limiting component includes a fixed disk fixedly connected to the right side of the clamping plate. A hydraulic rod is fixedly connected to the right side of the clamping plate. The output end of the hydraulic rod is provided with a plurality of multi-link modules arranged in an annular array. The output end of each multi-link module is provided with a clamping jaw, and the surface of the clamping jaw is provided with a groove. Through the linkage of the buffer component based on the hexagonal column, spherical valve body and counterweight, the present invention provides uniform support in the horizontal state. When the component tilts due to the inertial force of vehicle turning, the air flow passage is automatically switched, and a reverse lifting force or downward pressure is applied to the tilted side to absorb energy and achieve a flexible buffering effect.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the collaborative design of multiple components, the present invention realizes efficient protection and flexible adaptation, with remarkable beneficial effects. The foldable clamping plate is combined with the gas-driven clamping structure, which can fixedly hold the surface and the precast components with fragile and suspended structures that need to be transported suspended in a flexible fitting manner when unfolded, avoiding damage caused by rigid contact; after folding, it focuses on fixing the upper part of large precast components to meet the transportation requirements of different components. The conversion cylinder, spherical valve body and left and right pipes in the buffer component cooperate with each other, and can intelligently adjust the air flow passage according to the tilting state of the building precast component during suspended transportation and turning. In the horizontal state, the bilateral pipes provide a stable supporting force. When tilting to the left, the left pipe circulates alone to provide a lifting force, and when tilting to the right, the right pipe circulates to apply a downward pressure, effectively offsetting the inertial force and keeping the component stable. The present invention effectively avoids cracks or breakages of the component due to impact vibration through flexible buffering.

[0016] 2. The flexible buffer connection device for building precast components of the present invention realizes efficient protection and scenario adaptation through the collaborative innovation of multiple structures. The hydraulically driven precast wall ensures precise control. The foldable clamping and connecting mechanism can, through the unfolded or folded mode, not only flexibly and non-contact fix the fragile suspended components by using the pneumatic slider and the card slot to avoid rigid damage, but also realize the strong load-bearing fixation of heavy components through the upper surface mounting plate and hydraulic clamping jaws.

[0017] 3. Through the linkage of the buffer component based on the hexagonal column, spherical valve body and counterweight, the present invention provides uniform support in the horizontal state. When the component tilts due to the inertial force of vehicle turning, the air flow passage is automatically switched, and a reverse lifting force or downward pressure is applied to the tilted side to absorb energy and achieve a flexible buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is of the present invention Figure 1 The enlarged structural schematic diagram of part A in; Figure 3 is the overall structural sectional schematic diagram of the present invention; Figure 4 Schematic three-dimensional structure diagram of the limit component of the present invention; Figure 5 Schematic three-dimensional structure diagram of the clamping connection mechanism of the present invention; Figure 6 Schematic enlarged three-dimensional structure diagram of the clamping connection mechanism of the present invention; Figure 7 Schematic cross-sectional structure diagram of the hexagonal column of the present invention to show the cross-sectional structure of the upper notch; Figure 8 Schematic cross-sectional structure diagram of the hexagonal column of the present invention to show the cross-sectional structure of the lower notch; Figure 9 Schematic enlarged three-dimensional structure diagram of the buffer component of the present invention; Figure 10 Schematic exploded three-dimensional structure diagram of the buffer component of the present invention; Figure 11 Schematic structure diagram of the buffer component in the horizontal buffer use state of the present invention; Figure 12 Schematic structure diagram of the buffer component in the inclined buffer use state of the present invention Figure 1 ; Figure 13 Schematic structure diagram of the buffer component in the inclined buffer use state of the present invention Figure 2 ; Figure 14 Schematic cross-sectional structure diagram of the transportation and installation state of large building precast components of the present invention; Figure 15 Schematic cross-sectional structure diagram of the suspended transportation and installation state of building precast components of the present invention.

[0019] Explanation of the reference numerals in the figure: 1, precast wall; 11, installation piece; 2, clamping connection mechanism; 3, buffer component; 4, limit component; 21, clamping plate; 211, long plate; 212, end plate; 22, first motor; 23, cam; 24, pneumatic slider; 241, mounting plate; 25, support plate; 251, card slot; 26, torsion spring; 27, bolt; 28, abutting plate; 281, nut; 31, fixing frame; 32, sealing cylinder; 33, hexagonal column; 331, upper notch; 332, lower notch; 34, conversion cylinder; 341, left pipeline; 342, right pipeline; 35, spherical valve body; 351, flow hole; 36, switch valve; 361, valve plate; 37, counterweight; 38, cylinder; 381, hose; 41, fixed disk; 42, hydraulic rod; 43, multi-link module; 44, jaw; 441, groove. Detailed implementation manners

[0020] AsFigure 1 , Figures 5 - 6 and Figures 14 - 15 As shown in Figure 1 , Figures 5 - 6 and Figures 14 - 15 , a flexible buffer connection device for building prefabricated components according to the present invention includes a precast wall 1, a mounting piece 11 arranged on one side of the precast wall 1, a clamping connection mechanism 2 arranged on one side of the precast wall 1, a buffer assembly 3 arranged on one side of the precast wall 1 to the left of the clamping connection mechanism 2, and a limit assembly 4 arranged on the right side of the clamping connection mechanism 2.

[0021] The clamping connection mechanism 2 includes a clamping plate 21 located on one side of the precast wall 1. The clamping plate 21 is composed of a long plate 211 and an end plate 212, and the long plate 211 is hinged to the end plate 212. A first motor 22 is fixedly connected to one side of the long plate 211, and the output shaft of the first motor 22 corresponds to the horizontal axis of the hinge joint with the end plate 212. A cam 23 is fixedly connected to the output end of the first motor 22, and the cam 23 is movably sleeved on the surface of the convex block of the end plate 212. Pneumatic sliders 24 are symmetrically slidably connected in the holes on the clamping plate 21. A mounting plate 241 is fixedly connected to one side of each pneumatic slider 24. Support plates 25 are symmetrically rotatably connected between each pneumatic slider 24 and the mounting plate 241. A clamping groove 251 is arranged on the upper surface of each support plate 25. A torsion spring 26 is movably sleeved at the end of each support plate 25, and one end of each torsion spring 26 is fixedly connected to the pneumatic slider 24. A bolt 27 is fixedly connected to one side of each pneumatic slider 24. A pressing plate 28 is movably sleeved on the surface of each bolt 27. A nut 281 is rotatably connected to one side of each pressing plate 28, and the nut 281 is threadedly adapted to the bolt 27.

[0022] It should be noted that by arranging the clamping groove 251 on the surface of the support plate 25, when contacting the lower surface of the building prefabricated component, due to the gravity, the support plate 25 rotates axially, clamping the lower surface of the building prefabricated component and enhancing the friction force.

[0023] Specifically, when the foldable clamping plate 21 is unfolded, the clamping structure is driven by gas to make it fit and fix with the upper and lower surfaces of the building prefabricated component, which is applicable to building prefabricated components with fragile surfaces and structures and requires suspended transportation; when the clamping plate 21 is folded, the clamping structure located below the clamping plate 21 is folded, so that the clamping structure located above the clamping plate 21 fits with the upper surface of large prefabricated components, etc., to fix the upper half of the large building prefabricated component, which is applicable to the transportation and fixation of large building prefabricated components.

[0024] The flexible buffer connection device for building prefabricated components of the present invention realizes efficient protection and scene adaptation through the collaborative innovation of multiple structures. The hydraulically driven prefabricated wall 1 ensures precise control. The foldable clamping connection mechanism 2 can, through the unfolding or folding mode, not only flexibly and non-contact fix fragile suspended components by using the pneumatic slider 24 and the card slot 251 to avoid rigid damage, but also strongly fix heavy components through the upper surface mounting plate 241 and the hydraulic claw 44.

[0025] As Figures 2 - 3 and Figures 7 - 13 shown, the buffer assembly 3 includes a fixed frame 31, which is fixedly connected to the right side of the mounting piece 11. A sealing cylinder 32 is hinged to the right side of the fixed frame 31. A hexagonal column 33 is fixedly connected to the left side of the clamping plate 21, and the hexagonal column 33 is slidably and sealingly adapted inside the sealing cylinder 32. A number of upper notches 331 and lower notches 332 are arranged in a linear array on the surface of the hexagonal column 33. A conversion cylinder 34 is communicated with the surface of the sealing cylinder 32. The surface of the conversion cylinder 34 is provided with a left pipeline 341 and a right pipeline 342, and the left pipeline 341 is communicated with the surface of the sealing cylinder 32 located at the upper notch 331, and the right pipeline 342 is also communicated with the surface of the sealing cylinder 32 located at the lower notch 332. A spherical valve body 35 is fixedly sleeved inside the conversion cylinder 34. Two flow holes 351 are symmetrically arranged on the surface of the spherical valve body 35, and the two flow holes 351 are respectively communicated with the left pipeline 341 and the right pipeline 342. A switch valve 36 is rotatably sleeved inside the spherical valve body 35. Two valve plates 361 are arranged diagonally on the surface of the switch valve 36, and the valve plates 361 are sealingly adapted to the flow holes 351. One side of the switch valve 36 is fixedly connected with a counterweight 37 located outside the conversion cylinder 34 through a plug rod. An air cylinder 38 is fixedly connected to the inner wall of the mounting piece 11. The air cylinder 38 is communicated with the spherical valve body 35 through a hose 381, and the hose 381 passes through the fixed frame 31.

[0026] Specifically, when the building prefabricated component turns during suspended transportation, due to inertia, the building prefabricated component tilts left or right from the horizontal state. When the building prefabricated component is in the horizontal state, the two flow holes 351 on the spherical valve body 35 are in communication, so that the left pipeline 341 and the right pipeline 342 respectively exert a stable supporting force on the hexagonal column 33, enabling it to be stably suspended. When the building prefabricated component tilts to the left due to inertia, one of the flow holes 351 is in communication, so that the left pipeline 341 corresponding to the position of the upper notch 331 is in communication, and the right pipeline 342 is not in communication, exerting an upward supporting force on the building prefabricated component tilting to the left to make it stable. When the building prefabricated component tilts to the right due to inertia, the right pipeline 342 corresponding to the position of the lower notch 332 is in communication, and the left pipeline 341 is not in communication, exerting a downward force on the building prefabricated component tilting to the right, which can correct the tilting building prefabricated component.

[0027] Through the linkage of the buffer assembly 3 based on the hexagonal column 33, the spherical valve body 35 and the counterweight 37, the present invention provides uniform support in the horizontal state. When the component tilts due to the inertial force of vehicle turning, the air flow passage is automatically switched, and a reverse lifting force or downward pressure is applied to the tilted side to absorb energy and achieve a flexible buffering effect.

[0028] As Figures 4 - 5 shown, the limiting component 4 includes a fixed disk 41 fixedly connected to the right side of the clamping plate 21. A hydraulic rod 42 is fixedly connected to the right side of the clamping plate 21. A plurality of multi-link modules 43 are arranged in an annular array at the output end of the hydraulic rod 42. Claws 44 are arranged at the output end of each multi-link module 43, and grooves 441 are arranged on the surface of the claws 44.

[0029] It should be noted that the limiting component 4 is a clamping component of the existing conventional technology and will not be described in detail here. When the plurality of claws 44 are opened, they fit on the surface of the building precast component. Among them, the grooves 441 fit on the surface of the building precast component to increase the friction force.

[0030] Working principle: This embodiment provides a flexible buffer connection device for building precast components. When the building precast component is suspended and transported and installed (the installation heights of the connected precast components are different), first, the building precast component is placed between the two mounting plates 241 through an external lifting device, and then the mounting plates 241 are adjusted through an external control system to make them fit and fix on the upper surface of the building precast component. During transportation, when the building precast component is in a horizontal state, the cylinder 38 is made to work through the external control system, and gas is conveyed through the hose 381, causing the two flow holes 351 on the spherical valve body 35 to flow, so that the left pipeline 341 and the right pipeline 342 flow. Gas is supplied to the upper slot 331 and the lower slot 332 respectively through the left pipeline 341 and the right pipeline 342, so that the building precast component can be stable during transportation. When the transport vehicle turns, the building component tilts to one side due to inertia. At this time, under the action of the self-gravity of the counterweight 37, the switch valve 36 rotates. When the building precast component tilts to the left, one of the flow holes 351 on the left side of the precast component flows, causing the left pipeline 341 corresponding to the position of the upper slot 331 to flow, and the right pipeline 342 does not flow, applying a lifting force to the left side to achieve its stability. On the right side, the right pipeline 342 corresponding to the position of the lower slot 332 flows, and the left pipeline 341 does not flow, applying a downward pressure to the building precast component on the right side, which can correct the tilted building precast component and achieve a flexible buffering effect; Fixed transportation (the heights of the connected precast components are the same): The first motor 22 is operated through an external circuit mechanism. The first motor 22 drives the cam 23 to cause the long plate 211 and the end plate 212 to fold and fit together, causing the upper mounting plate 241 to fit and fix to the upper surface of the large building precast component. Moreover, the hydraulic rod 42 drives the multi-link module 43 to cause the jaws 44 to open, and the jaws 44 fit to one side of the building precast component through the grooves 441 to enhance the friction force. Among them, by fixing the upper half of the large building precast component, when the vehicle turns, the inclination of the building component can be suppressed to achieve stability.

[0031] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A flexible buffer connection device for building precast components, comprising a precast wall, a clamping connection mechanism arranged on one side of the precast wall, a buffer assembly arranged on one side of the precast wall to the left of the clamping connection mechanism, and a limit assembly arranged on the right side of the clamping connection mechanism, characterized in that The clamping and connecting mechanism includes a clamping plate with a foldable structure on one side of the precast wall body, and clamping structures are symmetrically arranged on the right side of the clamping plate; The buffer assembly includes a conversion cylinder on one side of the precast wall body. The surface of the conversion cylinder is provided with a left pipeline and a right pipeline, and a spherical valve body is fixedly sleeved inside the conversion cylinder; When the clamping plate is unfolded, the clamping structure is driven by gas, causing it to fit and fix with the upper and lower surfaces of the building precast component, which is applicable to building precast components with fragile surfaces and structures and requires suspended transportation or installation; when the clamping plate is folded, it can fix the upper half of the large building precast component, which is applicable to the transportation and installation fixation of large building precast components; When the building precast component turns during suspended transportation, due to inertia, the building precast component tilts left or right from the horizontal state; when the building precast component is in the horizontal state, the left pipeline and the right pipeline are in communication, and a stable supporting force can be applied to the suspended transportation building precast component; when the building precast component tilts to the left due to inertia, the left pipeline is in communication and the right pipeline is not in communication, applying a lifting force to the building precast component on the left side; when the building precast component tilts to the right due to inertia, the right pipeline is in communication and the left pipeline is not in communication, applying a downward pressure to the building precast component on the right side.

2. The flexible buffer connection device for a building precast component according to claim 1, characterized in that, An installation piece is arranged on one side of the precast wall body.

3. The flexible buffer connection device for a building prefabricated component according to claim 2, characterized in that, The clamping plate is composed of a long plate and an end plate, and the long plate is hinged to the end plate.

4. The flexible buffer connection device for a building prefabricated component according to claim 3, characterized in that, The clamping and connecting mechanism further includes a first motor, the first motor is fixedly connected to one side of the long plate, and the output shaft of the first motor corresponds to the horizontal axis at the hinge of the end plate. A cam is fixedly connected to the output end of the first motor, and the cam is movably sleeved on the surface of the convex block on the end plate.

5. The flexible buffer connection device for a building precast component according to claim 4, characterized in that, Pneumatic sliders are symmetrically and slidably connected in the holes on the clamping plate. An installation plate is fixedly connected to one side of each pneumatic slider. A support plate is symmetrically and rotatably connected between each pneumatic slider and the installation plate. A card slot is arranged on the upper surface of each support plate.

6. The flexible buffer connection device for a building prefabricated component according to claim 5, characterized in that, A torsion spring is movably sleeved at the end of each support plate, and one end of the torsion spring is fixedly connected to the pneumatic slider. A bolt is fixedly connected to one side of each pneumatic slider. A pressing plate is movably sleeved on the surface of each bolt. A nut is rotatably connected to one side of each pressing plate, and the nut is threadedly matched with the bolt.

7. A flexible buffer connection device for a building prefabricated component according to claim 6, characterized in that, The buffer assembly further includes a fixing frame, the fixing frame is fixedly connected to the right side of the installation piece. A sealing cylinder is hinged to the right side of the fixing frame. A hexagonal column is fixedly connected to the left side of the clamping plate, and the hexagonal column is slidably and sealingly adapted inside the sealing cylinder. A plurality of upper notches and lower notches are linearly arranged on the surface of the hexagonal column.

8. The flexible buffer connection device for a building precast component according to claim 7, characterized in that, The conversion cylinder is communicated with the surface of the sealing cylinder. The left pipeline and the right pipeline are arranged on the surface of the conversion cylinder. The left pipeline is communicated with the surface of the sealing cylinder at the upper notch, and the right pipeline is also communicated with the surface of the sealing cylinder at the lower notch.

9. The flexible buffer connection device for a building prefabricated component according to claim 8, characterized in that, The spherical valve body is fixedly sleeved inside the conversion cylinder. Two flow holes are symmetrically arranged on the surface of the spherical valve body, and the two flow holes are respectively communicated with the left pipeline and the right pipeline. A switch valve is rotatably sleeved inside the spherical valve body. Two valve plates are arranged diagonally on the surface of the switch valve, and the valve plates are hermetically adapted to the flow holes. One side of the switch valve is fixedly connected with a counterweight block located outside the conversion cylinder through a plug rod. The inner wall of the mounting plate is fixedly connected with a cylinder, and the cylinder is communicated with the spherical valve body through a hose, and the hose passes through the fixing frame.

10. A flexible buffer connection device for a building prefabricated component according to claim 9, characterized in that, The limiting component includes a fixed disk fixedly connected to the right side of the clamping plate. A hydraulic rod is fixedly connected to the right side of the clamping plate. A plurality of multi-link modules are arranged in an annular array at the output end of the hydraulic rod. Claws are arranged at the output end of each multi-link module, and grooves are arranged on the surface of the claws.

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