Prefabricated joint connection device with flexible shock absorption function and assembly shock absorption method

Abstract

The present invention relates to an assembled joint connection device with a flexible shock absorption function and an assembly shock absorption method. The connection device includes a first column and a second column axially connected by a connection sleeve, and a cross beam radially connected to the connection sleeve; a first connection component with a linkage shock absorption mechanism of a limiting ball and an annular energy dissipation groove is connected between the first column and the second column; a second connection component with secondary energy consumption by a combination of an elastic block and a spring is connected between the first column and the second column and the connection sleeve; a third connection component is used to realize detachable connection between the cross beam and the connection sleeve; a fourth connection component with energy consumption by multiple groups of elastic damping units is arranged between the first column and the connection sleeve.

Description

Technical Field

[0001] The present invention belongs to the technical field of building shock absorption equipment, and particularly relates to an assembled node connection device with flexible shock absorption function, an assembly method and a shock absorption method. Background Art

[0002] An assembled building structure is a building method in which some or all components of the building are prefabricated in a factory and then transported to the construction site for assembly and installation. Its main features include standardized design, industrialized production, assembled construction and integrated decoration, etc. This building method can effectively improve the stability and consistency of project quality, shorten the construction period, reduce on-site wet operations and construction waste.

[0003] The beam-column joint is a key part of the building frame structure. The stress condition in the core area of the beam-column joint is relatively complex. When the earthquake load acts repeatedly, cross-shaped cracks often appear in the core area and the column ends are damaged. Therefore, it is very necessary to set up shock absorption devices at the beam-column joints for building earthquake resistance. The existing node energy dissipation structures of assembled building structures usually use the deformation of angle steel and bolt friction to dissipate seismic energy, and it is difficult to achieve an ideal shock absorption effect with this method.

[0004] The existing node energy dissipation structures of assembled building structures mostly use angle steel deformation or bolt friction for energy dissipation, and have the following defects:

[0005] (1) The shock absorption effect is limited, and it is difficult to simultaneously dissipate seismic energy in multiple directions;

[0006] (2) It depends on metal deformation or friction, is prone to fatigue failure, and has a short service life;

[0007] (3) The installation and disassembly processes are complex, and it is difficult to quickly adjust or maintain. Summary of the Invention

[0008] The first technical problem solved by the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a first connection component of an assembled node connection device with flexible shock absorption function, which realizes the efficient dissipation of seismic energy in multiple directions (such as x, y directions) through a hydraulic oil compression and dynamic clamping mechanism, and uses the characteristic that the volume of hydraulic oil changes with temperature to realize rapid installation and disassembly, improve assembly flexibility, and solve the problems of easy fatigue and short service life caused by the traditional shock absorption device relying on metal deformation or friction.

[0009] The second technical problem solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a device that improves the redundancy and reusability of the device through the dynamic damping adjustment of columnar elastic blocks and springs; enhances the connection stability between the columns and the connecting sleeves, and avoids structural failure caused by relative displacement during earthquakes. Supplement the shock-absorbing function of the first connection component, and realize secondary energy dissipation through the friction and deformation of the elastic blocks and springs, further reducing the residual impact of seismic energy. It is a second connection component of an assembled joint connection device with a flexible shock-absorbing function.

[0010] The third technical problem solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a device that converts seismic kinetic energy into heat energy dissipation through the circumferential movement and frictional damping of elastic balls during earthquakes, improves the shock-absorbing performance of the beam nodes, and solves the problems of complex installation and difficult disassembly of the beam and the connecting sleeve in the prior art. The detachable connection is realized through the quick clamping of the limit post and the elastic ball. It is a third connection component of an assembled joint connection device with a flexible shock-absorbing function.

[0011] The fourth technical problem solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a device that evenly dissipates seismic forces in the x-direction and y-direction through the symmetrical arrangement of rubber gaskets and conical springs, and solves the limitation of the traditional device for unidirectional shock absorption. Utilize the shear deformation of the rubber gasket and the elastic compression of the conical spring to provide initial shock absorption and continuous energy dissipation, and reduce the residual deformation of the structure. Combine the pre-installed limit groove and the buckle mechanism to enhance the stability of the connecting sleeve and the beam, and improve the seismic redundancy of the overall structure. It is a fourth connection component of an assembled joint connection device with a flexible shock-absorbing function.

[0012] The first technical solution of the present invention is the assembled joint connection device with a flexible shock-absorbing function, which is characterized in that it includes a first column and a second column axially connected to the connecting sleeve, and a beam radially connected to the connecting sleeve;

[0013] The first column and the second column are connected by a first connection component with a linkage shock-absorbing mechanism of a limit ball and an annular energy dissipation groove;

[0014] The first column and the second column are connected to the connecting sleeve by a second connection component that combines elastic blocks and springs for secondary energy dissipation;

[0015] The beam and the connecting sleeve are detachably connected by a third connection component;

[0016] A fourth connection component that dissipates energy through multiple groups of elastic damping units is provided between the first column and the connecting sleeve.

[0017] Preferably: The first connection component is composed of a hydraulic energy dissipation system;

[0018] The hydraulic energy dissipation system includes a plurality of limiting balls arranged on the lower surface of the first column, a circular energy dissipation groove correspondingly arranged on the upper surface of the second column, and limiting balls embedded in the circular energy dissipation groove; arc-shaped plates are arranged on both sides of the limiting balls, the arc-shaped plates are connected to a piston through arc-shaped rods, the piston is connected to an arc-shaped plug cylinder, and hydraulic oil is filled in the arc-shaped plug cylinder;

[0019] The hydraulic oil in the hydraulic energy dissipation system is always in a compressed state, and the limiting balls are clamped by the tendency of the hydraulic oil to expand; during installation, the limiting balls are squeezed between the two arc-shaped plates, and the hydraulic oil in the arc-shaped plug cylinder is compressed to generate an expansion force to clamp the limiting balls; during disassembly, the volume of the hydraulic oil in the arc-shaped plug cylinder is reduced by cooling, and the clamping force is reduced to separate the connecting components; during an earthquake, the limiting balls slide in the circular energy dissipation groove and squeeze the arc-shaped plates, pushing the piston to compress the hydraulic oil in the arc-shaped plug cylinder, continuously consuming energy, and converting the earthquake energy into the internal energy of the hydraulic oil for consumption, realizing flexible shock absorption in the x direction and the y direction.

[0020] Preferably: the arc-shaped plates are provided with arc-shaped surfaces adapted to the limiting balls; arc-shaped grooves adapted to the fixing rods are arranged in the circular energy dissipation groove; a plurality of limiting balls are arranged in a circumferential array. During an earthquake, the arc-shaped plates drive the piston to slide bidirectionally, and the hydraulic oil in the arc-shaped plug cylinder is cyclically compressed and expanded, and its reaction force forms dynamic clamping, and the hydraulic oil flows to dissipate energy; arc-shaped limiting grooves are arranged between the arc-shaped rods to ensure the stability of the limiting balls during sliding and avoid structural deviation; the hydraulic oil in the hydraulic energy dissipation system changes with temperature. At normal temperature, the hydraulic oil expands to form a stable clamping force on the limiting balls, the connection strength is enhanced at high temperature, and it is convenient to disassemble at low temperature; when the first column and the second column are not connected, the distance between the arc-shaped plates on both sides of the limiting ball is smaller than the diameter of the limiting ball; the connecting sleeve supports various forms, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped; to meet the layout requirements of different nodes and improve the assembly flexibility.

[0021] Preferably: the first connecting component includes a shape memory alloy ring arranged at the bottom of the first column or the top of the second column, and a circular groove correspondingly arranged at the top of the second column or the bottom of the first column; the connecting sleeve adopts a "cross" or "one" shape design, and a two-way buckle mechanism is arranged inside the connecting sleeve; when an earthquake causes horizontal displacement of the first column and the second column, the shape memory alloy ring undergoes a phase transformation and deformation, absorbs energy and gradually recovers, and dissipates the vibration energy through elastic deformation; reduce the residual deformation of the structure; during construction, local heating is used to make the shape memory alloy ring expand and fit tightly with the circular groove to form a rigid connection; during disassembly, heating is stopped, and the shape memory alloy ring returns to the contracted state, and the first column can be easily separated.

[0022] Preferably, the second connection component includes a first limiting hole provided on the side wall of the first column, a first spring disposed inside the first limiting hole, and a limiting block that abuts against the first spring; a second limiting hole corresponding to the position of the first limiting hole is provided on the inner side wall of the connecting sleeve, and a columnar elastic block adapted to the limiting block and a second spring sleeved on the outer peripheral wall of the columnar elastic block are disposed inside the second limiting hole.

[0023] Preferably, the middle diameter of the columnar elastic block is large and the diameters at both ends are small, and its maximum diameter is greater than the inner diameter of the second spring; during an earthquake, relative displacement occurs between the first column, the second column and the connecting sleeve, the columnar elastic block moves in the second limiting hole, and the columnar elastic block and the second spring are squeezed and rubbed, converting the earthquake energy into internal energy and dissipating it.

[0024] When the two columns are not connected, the length of the second spring is the same as the length of the second limiting hole; when the first column and the second column are connected by the connecting sleeve, the first spring is in a compressed state, a part of the limiting block is located inside the first limiting hole, and the other part of the limiting block extends out of the first limiting hole and extends into the second limiting hole, and the positions of the first column, the second column and the connecting sleeve are restricted by the limiting block.

[0025] The connecting sleeve supports various forms, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped; to meet the layout requirements of different nodes and improve the assembly flexibility.

[0026] Preferably, the third connection component includes a third limiting hole radially recessed on the side wall of the cross beam located inside the connecting sleeve, a third spring disposed inside the third limiting hole, and a limiting post that abuts against the third spring. A fourth limiting hole adapted to the limiting post is provided on the inner wall of the connecting sleeve, and the third limiting hole communicates with the fourth limiting hole; a circular mounting hole is vertically provided inside the fourth limiting hole, and an elastic ball is embedded in the circular mounting hole; during installation, the cross beam is inserted into the connecting sleeve, and the third spring is compressed so that the limiting post is stuck into the fourth limiting hole; in the natural state, the elastic ball contacts the limiting post, and during an earthquake, the limiting post presses the elastic ball, and the elastic ball moves along the circular mounting hole to form damping energy dissipation.

[0027] Preferably, a circular limiting plate is provided in the opening direction of the circular mounting hole, and the diameter of the circular limiting plate is smaller than the diameter of the elastic ball, preventing the elastic ball from falling off while allowing the elastic ball to move circumferentially; the connecting sleeve supports various forms, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped; adapting to multi-directional node connections and improving the assembly flexibility.

[0028] Preferably, the fourth connection component includes a plurality of elastic damping units arranged between the first upright column and the connecting sleeve. Each elastic damping unit includes a rubber gasket and a conical spring. The rubber gasket provides initial shock absorption. The conical spring compresses during horizontal displacement and dissipates energy through friction and elastic deformation. The elastic damping units are symmetrically arranged in the x and Y directions to evenly dissipate bidirectional seismic forces. A pre-installed limit groove is provided at the end of the cross beam, and the rubber gasket on the horizontal part of the connecting sleeve is embedded in the pre-installed limit groove. The conical spring in the elastic damping unit compresses, and the rubber gasket undergoes shear deformation, consuming vibration energy through friction and elastic internal energy. A bidirectional buckle mechanism is arranged inside the connecting sleeve.

[0029] The second technical solution of the present invention is an assembly method of the prefabricated joint connection device with a flexible shock absorption function. The special feature is that the assembly method of the first connection component includes the following steps:

[0030] ⑴ Prepare components: Prepare the first upright column, the second upright column, the connecting sleeve, and the hydraulic energy dissipation system components according to specifications. The hydraulic energy dissipation system components include a limit ball, an annular energy dissipation groove, an arc plate, a piston, and an arc-shaped plug cylinder, ensuring that the arc plate fits the arc surface of the limit ball.

[0031] ⑵ Install the hydraulic energy dissipation system: Machine an annular energy dissipation groove on the upper surface of the second upright column and embed the limit ball into the groove. Symmetrically install the arc plates on both sides of the limit ball, connect the piston through an arc-shaped rod, and insert the end of the piston into the arc-shaped plug cylinder filled with hydraulic oil.

[0032] ⑶ Assemble the connection component: Align and fix the first upright column and the second upright column through the connecting sleeve, ensuring that the limit ball is located between the lower surface of the first upright column and the annular energy dissipation groove of the second upright column. Apply an external force to squeeze the limit ball between the two arc plates. At this time, the hydraulic oil in the arc-shaped plug cylinder is compressed to generate an expansion force to clamp the limit ball and form a stable connection.

[0033] ⑷ Pre-tighten the hydraulic system: Keep the hydraulic oil in a compressed state at normal temperature and use its expansion trend to continuously clamp the limit ball to ensure the initial tightening force of the connection component. Function verification: Test the stability of the connection device under static load to confirm that the limit ball does not slide and the hydraulic system does not leak.

[0034] The third technical solution of the present invention is a shock absorption method of the prefabricated joint connection device with a flexible shock absorption function. The special feature is that it includes the following steps:

[0035] ⑴ Earthquake energy trigger response: When an earthquake causes relative displacement between the first upright column and the second upright column, the limit ball slides in the annular energy dissipation groove and squeezes the arc plates on both sides.

[0036] ⑵Hydraulic oil compression energy consumption: After being squeezed, the arc-shaped plate pushes the piston through the arc-shaped rod, and the piston compresses the hydraulic oil in the arc-shaped plug cylinder, generating a dynamic reaction force; the compression process of the hydraulic oil converts seismic kinetic energy into internal energy, and the energy is continuously dissipated through oil flow and friction;

[0037] ⑶Bidirectional dynamic clamping: The arc-shaped plate reciprocates with the seismic direction, driving the piston to slide bidirectionally. The hydraulic oil forms a dynamic clamping force during the compression and expansion cycle, enhancing the structural stability;

[0038] ⑷Energy dissipation and reset: After the earthquake, the hydraulic oil gradually returns to its initial volume due to temperature change, and the limit ball resets in the annular energy dissipation groove; the elastic deformation of the arc-shaped plate assists the structure to return to its original position, ensuring that the device can be reused.

[0039] The fourth technical solution of the present invention is the assembly method of the assembled joint connection device with flexible shock absorption function, which is characterized in that the assembly method of the second connection component includes the following steps:

[0040] ⑴Prepare components: Prepare the first column, connecting sleeve, first spring, limit block, columnar elastic block, and second spring, and ensure that the sizes of the limit block and the columnar elastic block are adapted;

[0041] ⑵Install the first limit hole component: Process the first limit hole on the side wall of the first column, embed the first spring into the hole, and install the limit block so that it abuts against the first spring;

[0042] ⑶Install the second limit hole component: Process the second limit hole corresponding to the first limit hole on the inner side wall of the connecting sleeve, sleuth the second spring on the outer peripheral wall of the columnar elastic block, and embed the columnar elastic block and the second spring into the second limit hole together;

[0043] ⑷Alignment and assembly: Align the first column with the connecting sleeve to ensure that the positions of the first limit hole and the second limit hole correspond, and the limit block contacts the columnar elastic block; Use an external force to compress the first spring by the limit block and snap it into the second limit hole. After being squeezed, the columnar elastic block compresses the second spring to form an initial pre-tightening force;

[0044] ⑸Function verification: Test the stability of the connection component to confirm that there is no displacement of the limit block and the columnar elastic block under static load, and there is no loosening or deformation of the elastic component.

[0045] The fifth technical solution of the present invention is the shock absorption method of the assembled joint connection device with flexible shock absorption function, which is characterized in that it includes the following steps:

[0046] ⑴Earthquake-triggered relative displacement: The earthquake causes relative displacement between the first column and the connecting sleeve, and frictional contact occurs between the limit block and the columnar elastic block;

[0047] ⑵Frictional energy dissipation and elastic deformation: After being squeezed, the columnar elastic block moves along the second limiting hole, compressing the second spring. Through the elastic deformation of the spring and the friction between the columnar elastic block and the limiting block, the seismic kinetic energy is converted into heat energy and dissipated.

[0048] ⑶Dynamic damping adjustment: As the seismic direction changes, the limiting block and the columnar elastic block come into contact reciprocally. The compression and rebound of the second spring form dynamic damping, continuously absorbing seismic energy.

[0049] ⑷Reset mechanism: After the earthquake ends, the elastic restoring force of the second spring pushes the columnar elastic block to reset, and the limiting block returns to its initial position under the action of the first spring, ensuring that the device returns to its original state and maintains reusability.

[0050] The sixth technical solution of the present invention is an assembly method of the prefabricated joint connection device with flexible shock absorption function. The special feature lies in the assembly method of the third connection component, which includes the following steps:

[0051] ⑴Prepare components: Prepare a connecting sleeve, a cross beam, a third spring, a limiting column, and an elastic ball, ensuring that the sizes of the third limiting hole and the fourth limiting hole are adapted, and the elastic ball matches the annular installation hole.

[0052] ⑵Install the third limiting hole component: Machine a third limiting hole on the side wall of the cross beam in the cross beam installation hole of the cross beam, embed the third spring into the third limiting hole, and install the limiting column so that it abuts against the third spring.

[0053] ⑶Install the fourth limiting hole component: Machine a fourth limiting hole on the side wall of the transverse part of the connecting sleeve, and set an annular installation hole in the fourth limiting hole. Embed the elastic ball into the annular installation hole, and ensure that the annular limiting plate is fixed at the open end to prevent the elastic ball from falling off.

[0054] ⑷Alignment and assembly: Insert the cross beam into the cross beam installation hole of the connecting sleeve, apply an external force to compress the third spring by the limiting column and snap it into the fourth limiting hole of the connecting sleeve; at this time, the elastic ball contacts the limiting column in the natural state to form an initial preload.

[0055] ⑸Function verification: Test the connection stability between the cross beam and the connecting sleeve, confirm that the limiting column has no displacement under static load, the elastic ball is in close contact with the limiting column, and the third spring has no looseness or deformation.

[0056] The seventh technical solution of the present invention is a shock absorption method of the prefabricated joint connection device with flexible shock absorption function. The special feature lies in the shock absorption method of the third connection component, which includes the following steps:

[0057] ⑴Earthquake-triggered relative displacement: The earthquake causes relative displacement between the cross beam and the connecting sleeve, and extrusion contact occurs between the limiting column and the elastic ball.

[0058] ⑵ Frictional energy dissipation and elastic deformation: After being squeezed by the limiting post, the elastic ball moves circumferentially along the annular mounting hole. Through the friction between the elastic ball and the limiting post and the damping effect of the annular mounting hole wall, the seismic kinetic energy is converted into heat energy and dissipated.

[0059] ⑶ Dynamic damping adjustment: As the seismic direction changes, the limiting post and the elastic ball come into contact reciprocally. The moving path and damping force of the elastic ball are dynamically adjusted with the displacement direction, continuously absorbing seismic energy.

[0060] ⑷ Reset mechanism: After the earthquake ends, the elastic restoring force of the third spring pushes the limiting post to reset, and the elastic ball rebounds to its initial position in the annular mounting hole, ensuring that the device returns to its original state and maintains reusability.

[0061] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0062] ⑴ The shock absorption effect of the first connection component and its method of the present invention is remarkable: A hydraulic energy dissipation system (limiting ball + annular energy dissipation groove + hydraulic oil) is adopted. During an earthquake, the hydraulic oil circulates and compresses and expands, converting the seismic kinetic energy into internal energy, and the energy dissipation efficiency in the X and Y directions is increased by more than 40%. The installation is convenient and reversible: Utilizing the characteristics of thermal expansion and contraction of hydraulic oil, the limiting ball is automatically clamped at normal temperature, the connection strength is enhanced at high temperature, and the volume is reduced at low temperature for easy disassembly, realizing tool-free rapid disassembly and assembly. The connecting sleeve supports multiple forms (├, ┼, ┴, ┬, ┤, etc.), adapting to complex node layouts and improving the assembly flexibility.

[0063] ⑵ The secondary energy dissipation of the second connection component and its method of the present invention enhances redundancy: Through the extrusion friction between the columnar elastic block and the second spring, combined with elastic deformation and dynamic damping adjustment, the seismic energy is further dissipated, forming a multiple shock absorption mechanism. Dynamic adaptive adjustment: During an earthquake, the limiting block and the columnar elastic block come into contact reciprocally, and the compression and rebound of the spring form dynamic damping, adapting to seismic forces in different directions and avoiding structural deviation. Modular design: The multiple-form design of the connecting sleeve supports rapid assembly, and the standardized configuration of the limiting holes and elastic blocks reduces the construction complexity.

[0064] ⑶ The rapid disassembly, assembly and reset of the third connection component and its method of the present invention: The cross beam and the connecting sleeve are clamped through the limiting post and the elastic ball, and the third spring provides a pre-tightening force. It can be snapped in with one key during installation and separated by reverse operation during disassembly. Annular damping energy dissipation: During an earthquake, the elastic ball moves along the annular mounting hole, and energy is dissipated through the friction and the damping effect of the annular limiting plate, adapting to multi-directional vibrations with high shock absorption efficiency. Anti-detachment design: The diameter of the annular limiting plate is smaller than that of the elastic ball, ensuring that the elastic ball does not fall off during movement while allowing free circumferential movement, enhancing the reliability.

[0065] ⑷ The balanced elimination of bidirectional seismic forces of the fourth connection component and its method of the present invention: The elastic damping units (rubber gaskets + conical springs) are symmetrically arranged along the X / Y directions. The rubber gaskets provide initial shock absorption, and when the conical springs are compressed, energy is dissipated through friction and elastic deformation to balance and eliminate bidirectional vibrations. Anti-residual deformation: The shape memory alloy rings (SMA) undergo phase transformation and absorb energy during earthquakes, and are reset by heating after the earthquake, reducing the accumulation of plastic deformation and extending the service life. The pre-installed limit grooves simplify construction: The limit grooves are pre-installed at the ends of the cross beams and directly fit with the rubber gaskets of the connecting sleeves, reducing on-site adjustment steps and improving the assembly efficiency by 60%.

[0066] ⑸ The core advantages of the assembly methods of the present invention: Hydraulic system pre-tightening: Ensure the initial tightening force through the compressed state of hydraulic oil, and combine with the limit balls for precise alignment to avoid installation deviation. Modular component alignment: The limit holes and elastic blocks are designed standardly, simplifying the assembly process and supporting the rapid adaptation of multi-form connecting sleeves. Temperature-adjustable tool-free operation: Utilize the thermal expansion and contraction characteristics of hydraulic oil to achieve installation at normal temperature and disassembly at low temperature, reducing maintenance costs.

[0067] ⑹ The core advantages of the shock absorption methods of the present invention: Energy conversion mechanism: The cyclic compression and expansion of hydraulic oil and the frictional deformation of elastic components convert seismic kinetic energy into heat energy and internal energy, avoiding metal fatigue failure. Dynamic damping adjustment: Designs such as bidirectional sliding pistons and circumferential movement of elastic ball rings adapt to different seismic directions and continuously absorb energy. Self-resetting ability: After the earthquake, the volume of hydraulic oil recovers, the springs elastically reset, and the SMA shape memory effect ensures that the structure returns to its original position and can be reused. Description of the Drawings

[0068] Figure 1 is the overall structural schematic diagram of the node connection device of the present invention;

[0069] Figure 2 is the top view schematic diagram of the second column of the present invention;

[0070] Figure 3 is the bottom view schematic diagram of the first column of the present invention;

[0071] Figure 4 is the partial three-dimensional structural schematic diagram of the second column of the present invention;

[0072] Figure 5 is the cross-sectional view of the second column of the present invention;

[0073] Figure 6 is Figure 1 the enlarged view of the partial structure at A in

[0074] Figure 7 is Figure 1 the enlarged view of the partial structure at B in

[0075] Description of main component symbols:

[0076] Specific implementation manner

[0077] The present invention will be further described in detail below in conjunction with the accompanying drawings:

[0078] Figures 1 to 5 The first embodiment of the present invention is shown.

[0079] Please refer to Figures 1 to 5 As shown, the first connection component 5 of the assembled joint connection device with flexible shock absorption function includes a first column 1 and a second column 2 axially connected to a connecting sleeve 3, and a cross beam 4 radially connected to the connecting sleeve 3;

[0080] The first column 1 and the second column 2 are connected by a first connection component 5 of a linkage shock absorption mechanism of a limiting ball 51 and an annular energy dissipation groove 52.

[0081] Please refer to Figure 5 As shown, the first connection component 5 is composed of a hydraulic energy dissipation system; the hydraulic energy dissipation system includes a plurality of limiting balls 51 arranged on the lower surface of the first column 1, an annular energy dissipation groove 52 correspondingly arranged on the upper surface of the second column 2, and the limiting balls 51 are embedded in the annular energy dissipation groove 52; arc-shaped plates 53 are arranged on both sides of the limiting balls 51, the arc-shaped plates 53 are connected to a piston 55 through arc-shaped rods 54, the piston 55 is connected to an arc-shaped plug cylinder 56, and hydraulic oil 57 is filled in the arc-shaped plug cylinder 56;

[0082] In the hydraulic energy dissipation system, the hydraulic oil 57 within the arc-shaped plug cylinder 56 is always in a compressed state. The tendency of the hydraulic oil 57 to expand outward is utilized to clamp the limit ball 51 between the two arc-shaped plates 53. Limit rings 551 are provided at both ends of the arc-shaped plug cylinder 56 to limit the position of the piston 55. During installation, the limit ball 51 is squeezed between the two arc-shaped plates 53, and the hydraulic oil 57 within the arc-shaped plug cylinder 56 is compressed to generate an expansion force to clamp the limit ball 51. The two arc-shaped plates 53 slide within the annular energy dissipation groove 52, compressing the hydraulic oil 57, that is, the hydraulic oil 57 has a tendency to increase in volume. The two arc-shaped plates 53 have a squeezing force on the limit ball 51. Especially when the ambient temperature is higher, the squeezing force of the two arc-shaped plates 53 on the limit ball 51 is greater, thereby locking the limit ball 51 within the annular energy dissipation groove 52 to achieve the rapid connection between the first column 1 and the second column 2. When disassembling the first column 1 and the second column 2, the ambient temperature where the first column 1 and the second column 2 are located is lowered to reduce the volume of the hydraulic oil 57 and the squeezing force of the two arc-shaped plates 53 on the limit ball 51, and then the first column 1 and the second column 2 are forcefully separated. By utilizing the characteristic that the volume of the hydraulic oil 57 changes with temperature, the first column 1 and the second column 2 can be rapidly installed and disassembled. The volume of the hydraulic oil 57 within the arc-shaped plug cylinder 56 contracts by cooling to reduce the clamping force and then separate the connection assembly; it should be noted that the arc-shaped surfaces of the arc-shaped plates 53 in contact with the limit ball 51 are adapted to the arc-shaped surface of the limit ball 51. When the two arc-shaped plates 53 squeeze and press against the limit ball 51, the arc-shaped surfaces of the two arc-shaped plates 53 just fit the limit ball 51, further locking the limit ball 51;

[0083] During an earthquake, relative horizontal displacement will occur between the first column 1 and the second column 2. The limit ball 51 slides back and forth within the annular energy dissipation groove 52 and squeezes the arc-shaped plate 53, driving the piston 55 to slide within the arc-shaped plug cylinder 56 through the arc-shaped plate 53, thereby compressing and expanding the hydraulic oil 57, and continuously converting the earthquake energy into the internal energy of the hydraulic oil 57 and consuming it. Compared with ordinary spring shock absorption, the service life is longer. By providing the annular energy dissipation groove 52 and the limit ball 51, flexible shock absorption in the x-direction and y-direction is achieved, and the energy dissipation effect is better.

[0084] In this embodiment, when the first column 1 and the second column 2 are not connected, the distance between the two arc-shaped plates 53 on both sides of the limiting ball 51 is less than the diameter of the limiting ball 51; in a preferred embodiment, when the first column 1 and the second column 2 are not connected, the smaller the distance between the two arc-shaped plates 53, the greater the pressing force of the hydraulic oil 57 on the limiting ball 51, and the firmer the connection between the first column 1 and the second column 2. It should be noted that when the first column 1 and the second column 2 are not connected, there should be a certain gap between the two arc-shaped plates 53 to facilitate the squeezing of the limiting ball 51 into the two arc-shaped plates 53. An arc-shaped groove 59 adapted to the fixing rod 58 is provided in the annular energy dissipation groove 52; a plurality of limiting balls 51 are distributed in a circumferential array. During an earthquake, the arc-shaped plate 53 drives the piston 55 to slide bidirectionally, and the hydraulic oil 57 in the arc-shaped plug cylinder 56 is cyclically compressed and expanded, and its reaction force forms a dynamic clamping, and the hydraulic oil 57 flows to dissipate energy during an earthquake; an arc-shaped limiting groove is provided between the arc-shaped rods 54 to ensure the stability of the limiting ball 51 during sliding and avoid structural deviation; the hydraulic oil 57 in the hydraulic energy dissipation system changes with temperature. At room temperature, the hydraulic oil 57 expands to form a stable clamping force on the limiting ball 51, enhancing the connection strength at high temperature and facilitating disassembly at low temperature; the connecting sleeve 3 supports various forms, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped; to meet the layout requirements of different nodes and improve the assembly flexibility. Figure 1 Only one of the "├" shapes is shown.

[0085] Please refer to Figures 1 to 5 As shown, the assembly method of the first connection component of the assembled node connection device with flexible shock absorption function includes the following steps:

[0086] ⑴ Prepare components: Prepare the first column 1, the second column 2, the connecting sleeve 3, and the hydraulic energy dissipation system according to specifications. The hydraulic energy dissipation system includes a limiting ball 51, an annular energy dissipation groove 52, an arc-shaped plate 53, a piston 55, and an arc-shaped plug cylinder 56, and ensure that the arc-shaped plate 53 is adapted to the arc surface of the limiting ball 51;

[0087] ⑵ Install the hydraulic energy dissipation system: Machine the annular energy dissipation groove 52 on the upper surface of the second column 2, and embed the limiting ball 51 into the annular energy dissipation groove 52; symmetrically install the arc-shaped plates 53 on both sides of the limiting ball 51, connect the piston 55 through the arc-shaped rod 54, and insert the end of the piston 55 into the arc-shaped plug cylinder 56 filled with hydraulic oil 57;

[0088] ⑶ Assemble the connection component: Align and fix the first column 1 and the second column 2 through the connecting sleeve 3, and ensure that the limiting ball 51 is located between the lower surface of the first column 1 and the annular energy dissipation groove 52 of the second column 2; apply an external force to squeeze the limiting ball 51 into the two arc-shaped plates 53. At this time, the hydraulic oil 57 in the arc-shaped plug cylinder 56 is compressed to generate an expansion force, clamping the limiting ball 51 to form a stable connection;

[0089] ⑷ Pre - pressing of the hydraulic system: Keep the hydraulic oil 57 in a compressed state at room temperature, and utilize its expansion tendency to continuously clamp the limit ball 51 to ensure the initial fastening force of the connection assembly; Function verification: Test the stability of the connection device under static load, confirm that the limit ball 51 does not slide, and there is no leakage in the hydraulic system.

[0090] Please refer to Figures 1 to 5 As shown, the shock - absorption method of the assembled joint connection device with flexible shock - absorption function includes the following steps:

[0091] ⑴ Earthquake - energy triggering response: When an earthquake causes relative displacement between the first column 1 and the second column 2, the limit ball 51 slides in the annular energy - dissipation groove 52 and squeezes the arc - shaped plates 53 on both sides;

[0092] ⑵ Hydraulic - oil compression energy - dissipation: After being squeezed, the arc - shaped plate 53 pushes the piston 55 through the arc - shaped rod 54, and the piston 55 compresses the hydraulic oil 57 in the arc - shaped plug cylinder 56 to generate a dynamic reaction force; The compression process of the hydraulic oil 57 converts seismic kinetic energy into internal energy and continuously dissipates energy through oil - fluid flow and friction;

[0093] ⑶ Bidirectional dynamic clamping: The arc - shaped plate 53 reciprocates with the earthquake direction, driving the piston 55 to slide bidirectionally. The hydraulic oil 57 forms a dynamic clamping force during the compression and expansion cycle, enhancing the structural stability;

[0094] ⑷ Energy dissipation and reset: After the earthquake ends, the hydraulic oil 57 gradually returns to its initial volume due to temperature change, and the limit ball 51 resets in the annular energy - dissipation groove 52; The elastic deformation of the arc - shaped plate 53 assists the structure to return to its original position, ensuring that the device can be reused.

[0095] Figure 1 、 Figure 6 shows the second embodiment of the present invention.

[0096] Please refer to Figure 1 、 Figure 6 As shown, the second connection assembly 6 of the assembled joint connection device with flexible shock - absorption function includes: The combination of the column - shaped elastic block 65 and the second spring 66 between the first column 1, the second column 2 and the connecting sleeve 3 for secondary energy - dissipation.

[0097] The second connection component 6 includes a first limit hole 61 provided on the side wall of the column. A first spring 62 and a limit block 63 that abuts against the first spring 62 are arranged inside the first limit hole 61. A second limit hole 64 corresponding to the position of the first limit hole 61 is concavely provided on the inner side wall of the connecting sleeve 3. A columnar elastic block 65 adapted to the limit block 63 and a second spring 66 sleeved on the outer peripheral wall of the columnar elastic block 65 are arranged inside the second limit hole 64. During an earthquake, the first column 1 and the connecting sleeve 3 are displaced relative to each other. The second connection component combines the second spring 66 with the columnar elastic block 65. The columnar elastic block 65 squeezes the second spring 66 to generate friction, and energy is dissipated through friction and elastic deformation damping, further dissipating earthquake energy.

[0098] When the first column 1 and the second column 2 are not connected, a part of the limit is located inside the first limit hole 61, and the other part extends outside the first limit hole 61. When the first column 1 and the second column 2 are connected through the connecting sleeve 3, the first spring 62 is in a compressed state. A part of the limit block 63 is located inside the first limit hole 61, and the other part extends outside the first limit hole 61 and extends into the second limit hole 64. The positions of the first column 1, the second column 2, and the connecting sleeve 3 are restricted by the limit block 63.

[0099] In this embodiment, the second spring 66 is arranged inside the second limit hole 64. One end of the second spring 66 is fixedly connected to the inner wall of the second limit hole 64, and the other end is a free end. When the first column 1 and the second column 2 are not connected, the length of the second spring 66 is the same as the length of the second limit hole 64. The middle diameter of the columnar elastic block 65 is large, and the diameters at both ends are small. Its maximum diameter is larger than the inner diameter of the second spring 66. During an earthquake, relative displacement occurs between the first column 1, the second column 2, and the connecting sleeve 3. The columnar elastic block 65 moves inside the second limit hole 64, and the columnar elastic block 65 and the second spring 66 are squeezed and rubbed, converting earthquake energy into internal energy and dissipating it.

[0100] In a preferred embodiment, limit blocks 63 and columnar elastic blocks 65 are arranged on the four perimeters of the first column 1 and the second column 2.

[0101] The connecting sleeve supports various shapes, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped, to meet the layout requirements of different nodes and improve the assembly flexibility. Figure 1 Only one “├” shape is shown.

[0102] Please refer to Figure 1 、 Figure 6 As shown, the assembly method of the second connection component of the prefabricated joint connection device with a flexible shock absorption function includes the following steps:

[0103] ⑴ Prepare components: Prepare the first upright post 1, connecting sleeve 3, first spring 62, limiting block 63, columnar elastic block 65, and second spring 66, ensuring that the sizes of the limiting block 63 and the columnar elastic block 65 are adapted to each other;

[0104] ⑵ Install the first limiting hole 61 component: Machine the first limiting hole 61 on the side wall of the first upright post 1, embed the first spring 62 into the first limiting hole 61, and install the limiting block 63 so that it abuts against the first spring 62;

[0105] ⑶ Install the second limiting hole 64 component: Machine the second limiting hole 64 corresponding to the first limiting hole 61 on the inner side wall of the connecting sleeve 3, sleuth the second spring 66 on the outer peripheral wall of the columnar elastic block 65, and embed the columnar elastic block 65 and the second spring 66 together into the second limiting hole 64;

[0106] ⑷ Alignment and assembly: Align the first upright post 1 and the connecting sleeve 3 to ensure that the positions of the first limiting hole 61 and the second limiting hole 64 correspond, and the limiting block 63 contacts the columnar elastic block 65; Apply an external force to compress the first spring 62 by the limiting block 63 and snap it into the second limiting hole 64. After being squeezed, the columnar elastic block 65 compresses the second spring 66 to form an initial pre-tightening force;

[0107] ⑸ Function verification: Test the stability of the connection component, and confirm that there is no displacement of the limiting block 63 and the columnar elastic block 65 under static load, and there is no loosening or deformation of the elastic component.

[0108] Please refer to Figure 1 、 Figure 6 As shown in, the shock absorption method of the second connection device of the assembled node connection device with flexible shock absorption function includes the following steps:

[0109] ⑴ Earthquake-triggered relative displacement: The earthquake causes relative displacement between the first upright post 1 and the connecting sleeve 3, and frictional contact is generated between the limiting block 63 and the columnar elastic block 65;

[0110] ⑵ Friction energy dissipation and elastic deformation: After being squeezed, the columnar elastic block 65 moves along the second limiting hole 64, compressing the second spring 66. Through the elastic deformation of the second spring 66 and the friction between the columnar elastic block 65 and the limiting block 63, the earthquake kinetic energy is converted into heat energy and dissipated;

[0111] ⑶ Dynamic damping adjustment: As the earthquake direction changes, the limiting block 63 and the columnar elastic block 65 come into contact reciprocally, and the compression and rebound of the second spring 66 form dynamic damping, continuously absorbing earthquake energy;

[0112] ⑷ Reset mechanism: After the earthquake ends, the elastic restoring force of the second spring 66 pushes the columnar elastic block 65 to reset, and the limiting block 63 returns to its initial position under the action of the first spring 62, ensuring that the device returns to its original state and maintains reusability.

[0113] Figure 1 and Figure 7 shows the third embodiment of the present invention.

[0114] Please refer to Figure 1 and Figure 7 As shown, the third connecting component 7 of the assembled joint connecting device with flexible shock absorption function includes a cross beam 4 and a connecting sleeve 3. A cross beam mounting hole adapted to the cross beam 4 is provided in the transverse part of the connecting sleeve 3, and the cross beam 4 and the connecting sleeve 3 are detachably connected through the third connecting component 7;

[0115] The third connecting component 7 includes a third limiting hole 71 recessed in the inner side wall of the cross beam 4 mounting hole, a third spring 72 disposed in the third limiting hole 71, a limiting column 73 abutting against the third spring 72, and a fourth limiting hole 74 adapted to the limiting column 73 is provided on the side wall of the connecting sleeve 3. The third limiting hole 71 communicates with the fourth limiting hole 74; a circular mounting hole 741 is vertically disposed in the fourth limiting hole 74, and an elastic ball 75 is embedded in the circular mounting hole 741. During installation, when the cross beam 4 is inserted into the connecting sleeve 3, the third spring 72 is compressed so that the limiting column 73 is snapped into the fourth limiting hole 74; in the natural state, a plurality of elastic balls 75 are in contact with the circumferential side wall of the limiting column 73, and a plurality of elastic balls 75 just fill the circular mounting hole 741, and a plurality of elastic balls 75 move back and forth along the circular line direction in the circular mounting hole 741; during an earthquake, the limiting column 73 moves back and forth in the fourth limiting hole 74, squeezing a plurality of elastic balls 75 back and forth, and a plurality of elastic balls 75 move in the circular mounting hole 741, converting the earthquake energy into elastic internal energy and dissipating it;

[0116] Please refer to Figure 7 As shown, a circular limiting plate 76 is provided in the opening direction of the circular mounting hole 741. The diameter of the circular limiting plate 76 is smaller than the diameter of the elastic ball 75, preventing the elastic ball 75 from falling off while allowing its circumferential movement; the connecting sleeve 3 supports various forms, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped; adapting to multi-directional node connections and improving assembly flexibility.

[0117] Please refer to Figure 7 As shown, the assembly method of the third connecting component of the assembled joint connecting device with flexible shock absorption function includes the following steps:

[0118] ⑴ Prepare components: Prepare the connecting sleeve 3, the cross beam 4, the third spring 72, the limiting column 73, and the elastic ball 75, and ensure that the sizes of the third limiting hole 71 and the fourth limiting hole 74 are adapted, and the elastic ball 75 matches the circular mounting hole 741;

[0119] ⑵ Install the third limit hole assembly: Machine the third limit hole 71 on the side wall of the crossbeam 4 in the crossbeam installation hole of the crossbeam. Insert the third spring 72 into the third limit hole 71, and install the limit post 73 so that it abuts against the third spring 72;

[0120] ⑶ Install the fourth limit hole assembly: Machine the fourth limit hole 74 on the side wall of the transverse part of the connecting sleeve 3, and set an annular installation hole 741 in the fourth limit hole 74. Insert the elastic ball 75 into the annular installation hole 741, and ensure that the annular limit plate 76 is fixed at the open end to prevent the elastic ball 75 from falling off;

[0121] ⑷ Alignment and assembly: Insert the crossbeam 4 into the crossbeam installation hole of the connecting sleeve 3, apply an external force to compress the third spring 72 by the limit post 73 and snap it into the fourth limit hole 74 of the crossbeam 4; At this time, the elastic ball 75 contacts the limit post 73 in the natural state to form an initial preload;

[0122] ⑸ Function verification: Test the connection stability between the crossbeam 4 and the connecting sleeve 3, confirm that the limit post 73 has no displacement under static load, the elastic ball 75 is in close contact with the limit post 73, and the third spring 72 has no looseness or deformation.

[0123] Please refer to Figure 7 As shown, the shock absorption method of the third connection component of the assembled joint connection device with flexible shock absorption function includes the following steps:

[0124] ⑴ Earthquake-triggered relative displacement: The earthquake causes relative displacement between the crossbeam 4 and the connecting sleeve 3, and extrusion contact occurs between the limit post 73 and the elastic ball 75;

[0125] ⑵ Friction energy dissipation and elastic deformation: After being extruded by the limit post 73, the elastic ball 75 moves circumferentially along the annular installation hole 741. Through the friction between the elastic ball 75 and the limit post 73 and the damping effect of the wall of the annular installation hole 741, the earthquake kinetic energy is converted into heat energy and dissipated;

[0126] ⑶ Dynamic damping adjustment: As the earthquake direction changes, the limit post 73 and the elastic ball 75 come into contact reciprocally. The moving path and damping force of the elastic ball 75 are dynamically adjusted with the displacement direction, continuously absorbing earthquake energy;

[0127] ⑷ Reset mechanism: After the earthquake ends, the elastic restoring force of the third spring 72 pushes the limit post 73 to reset, and the elastic ball 75 rebounds to the initial position in the annular installation hole 741, ensuring that the device returns to its original state and maintains reusability.

[0128] The fourth embodiment of the present invention.

[0129] Please refer to Figures 1 to 5As shown in the figure, an assembled joint connection device with flexible shock absorption function includes a first column 1 and a second column 2 axially connected by a connecting sleeve, and a cross beam 4 radially connected by the connecting sleeve 3; the cross beam and the connecting sleeve are detachably connected through a third connection component 7.

[0130] The first connection component 5 includes a shape memory alloy ring (not shown in the figure) provided at the bottom of the first column 1 or the top of the second column 2, and an annular groove (not shown in the figure) is designed at the corresponding position at the top of the second column 2 or the bottom of the first column 1; the connecting sleeve 3 is designed in a "cross" or "one" shape, and a two-way buckle mechanism (not shown in the figure) is arranged inside the connecting sleeve 3; when an earthquake causes the horizontal displacement of the column, the shape memory alloy ring (not shown in the figure) undergoes a phase transformation and deformation, absorbs energy and gradually recovers, and dissipates the vibration energy through elastic deformation; reduce the residual deformation of the structure; during construction, by local heating, the shape memory alloy ring (not shown in the figure) expands and fits tightly with the annular groove (not shown in the figure) to form a rigid connection; when disassembling, stop heating, and the shape memory alloy ring (not shown in the figure) returns to the contracted state, and the first column 1 can be easily separated.

[0131] The fifth embodiment of the present invention.

[0132] Please refer to Figures 1 to 5 As shown in the figure, an assembled joint connection device with flexible shock absorption function includes a first column 1 and a second column 2 axially connected by a connecting sleeve, and a cross beam 4 radially connected by the connecting sleeve 3; the cross beam and the connecting sleeve are detachably connected through a third connection component 7.

[0133] The third connection component 7 includes a plurality of groups of elastic damping units (not shown in the figure) arranged between the first column 1 and the connecting sleeve 3, and each group of elastic damping units includes a rubber gasket (not shown in the figure) and a conical spring (not shown in the figure); the rubber gasket (not shown in the figure) provides initial shock absorption, and the conical spring (not shown in the figure) compresses during horizontal displacement and dissipates energy through friction and elastic deformation; the damping units are symmetrically arranged in the X and Y directions to evenly dissipate the bidirectional seismic force; a pre-installed limit groove is provided at the end of the cross beam, and the rubber gasket at the horizontal part of the connecting sleeve is embedded in the pre-installed limit groove (not shown in the figure); the conical spring (not shown in the figure) in the elastic damping unit compresses, and the rubber gasket (not shown in the figure) undergoes shear deformation, and the vibration energy is consumed through friction and elastic internal energy; a two-way buckle mechanism (not shown in the figure) is arranged inside the connecting sleeve 3.

[0134] The above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. An assembled node connection device with flexible shock-absorbing function, characterized in that: It includes a first column and a second column axially connected by a connecting sleeve, and a crossbeam radially connected by the connecting sleeve; The first column and the second column are connected via a first connecting component of a linkage shock absorbing mechanism of a limiting ball and an annular energy dissipation groove; The first column, the second column and the connecting sleeve are connected by a second connecting assembly composed of an elastic block and a spring for secondary energy dissipation; The crossbeam and the connecting sleeve are detachably connected via a third connecting component; A fourth connection assembly for dissipating energy through multiple groups of elastic damping units is provided between the first column and the connection sleeve; The first connection assembly is composed of a hydraulic energy dissipation system; The hydraulic energy dissipation system comprises a plurality of limiting balls arranged on the lower surface of the first column, an annular energy dissipation groove correspondingly arranged on the upper surface of the second column, and limiting balls embedded in the annular energy dissipation groove; arc plates are arranged on both sides of the limiting balls, the arc plates are connected to the pistons through arc rods, the pistons are connected to the arc plug cylinders, and the arc plug cylinders are filled with hydraulic oil; The hydraulic oil in the hydraulic energy dissipation system is always in a compressed state, and the expansion trend of the hydraulic oil is used to clamp the limit ball; during installation, the limit ball is squeezed between the two arc plates, and the hydraulic oil in the arc plug cylinder is compressed to generate expansion force, clamping the limit ball; during disassembly, the volume of the hydraulic oil in the arc plug cylinder is contracted by cooling, and the connecting components are separated after reducing the clamping force; during an earthquake, the limit ball slides in the annular energy dissipation groove and squeezes the arc plate, pushing the piston to compress the hydraulic oil in the arc plug cylinder, continuously consuming energy, converting the earthquake energy into the internal energy consumption of the hydraulic oil, and realizing flexible shock absorption in the x and y directions.

2. According to claim 1, the assembled node connection device with flexible shock absorption function is characterized in that: The arc plate is provided with an arc surface adapted to the limiting ball; an arc groove adapted to the fixing rod is provided in the annular energy dissipation groove; a plurality of limiting balls are distributed in a circular array, and during an earthquake, the arc plate drives the piston to slide in both directions, and the hydraulic oil in the arc plug cylinder circulates, compresses and expands, and its reaction force forms dynamic clamping, and the hydraulic oil flows to dissipate energy; an arc limiting groove is provided between the arc rods to ensure the stability of the limiting ball when sliding and avoid structural displacement; the hydraulic oil in the hydraulic energy dissipation system changes with temperature, and the expansion of the hydraulic oil at room temperature forms a stable clamping force on the limiting ball, the connection strength is enhanced when the temperature rises, and it is easy to disassemble when the temperature drops; when the first column and the second column are not connected, the distance between the arc plates on both sides of the limiting ball is less than the diameter of the limiting ball; the connecting sleeve supports a variety of forms, including ├ shape, ┼ shape, ┴ shape, ┬ shape, and ┤ shape; so as to meet the layout requirements of different nodes and improve assembly flexibility.

3. The assembled node connection device with flexible shock-absorbing function according to claim 1 is characterized in that: The first connection component includes a shape memory alloy ring arranged at the bottom of the first column or the top of the second column, and an annular groove arranged at a corresponding position on the top of the second column or the bottom of the first column; the connection sleeve adopts a "cross" or "I" shape design, and a two-way snap mechanism is arranged inside the connection sleeve; when an earthquake causes the first column and the second column to move horizontally, the shape memory alloy ring undergoes phase deformation, absorbs energy and gradually recovers, and dissipates vibration energy through elastic deformation, thereby reducing residual structural deformation; during construction, local heating is performed to expand the shape memory alloy ring, tightly fit the annular groove, and form a rigid connection; when disassembling, heating is stopped, the shape memory alloy ring returns to a contracted state, and the first column is easily separated.

4. The assembled node connection device with flexible shock-absorbing function according to claim 1 is characterized in that: The second connecting component includes a first limiting hole set on the side wall of the first column, a first spring built into the first limiting hole, and a limiting block that resists the first spring; a second limiting hole corresponding to the position of the first limiting hole is set on the inner wall of the connecting sleeve, a columnar elastic block adapted to the limiting block is built into the second limiting hole, and a second spring is sleeved on the outer peripheral wall of the columnar elastic block.

5. The assembled node connection device with flexible shock-absorbing function according to claim 4 is characterized in that: The columnar elastic block has a large diameter in the middle and small diameters at both ends, and its maximum diameter is larger than the inner diameter of the second spring. When an earthquake occurs, relative displacement occurs between the first column, the second column and the connecting sleeve, the columnar elastic block moves in the second limiting hole, and the columnar elastic block and the second spring are squeezed and rubbed to convert the earthquake energy into internal energy and dissipate it. When the two columns are not connected, the length of the second spring is consistent with the length of the second limiting hole; when the first column and the second column are connected through the connecting sleeve, the first spring is in a compressed state, a part of the limiting block is located in the first limiting hole, and another part of the limiting block extends out of the first limiting hole and into the second limiting hole, and the positions of the first column, the second column and the connecting sleeve are limited by the limiting block; The connecting sleeve supports various shapes, including ├ shape, ┼ shape, ┴ shape, ┬ shape, and ┤ shape; to meet the layout requirements of different nodes and improve assembly flexibility.

6. The assembled node connection device with flexible shock-absorbing function according to claim 1 is characterized in that: The third connecting component includes a third limiting hole radially recessed on the side wall of the beam inside the connecting sleeve, a third spring built into the third limiting hole, a limiting column abutting the third spring, a fourth limiting hole adapted to the limiting column is provided on the inner wall of the connecting sleeve, and the third limiting hole is connected with the fourth limiting hole; an annular mounting hole is built in perpendicular to the fourth limiting hole, and an elastic ball is embedded in the annular mounting hole; during installation, the beam is inserted into the connecting sleeve, and the third spring is compressed to make the limiting column snap into the fourth limiting hole; in a natural state, the elastic ball contacts the limiting column, and during an earthquake, the limiting column squeezes the elastic ball, and the elastic ball moves along the annular mounting hole to form damping energy dissipation.

7. The assembled node connection device with flexible shock-absorbing function according to claim 6 is characterized in that: An annular limit plate is arranged in the opening direction of the annular mounting hole, and the diameter of the annular limit plate is smaller than the diameter of the elastic ball, so as to prevent the elastic ball from falling off and allow the elastic ball to move in an annular direction; the connecting sleeve supports a variety of forms, including ├-shaped, ┼-shaped, ┴-shaped, ┬-shaped, and ┤-shaped; it is adapted to multi-directional node connection to improve assembly flexibility.

8. The assembled node connection device with flexible shock-absorbing function according to claim 1 is characterized in that: The fourth connecting component includes multiple groups of elastic damping units arranged between the first column and the connecting sleeve, each group of elastic damping units includes a rubber gasket and a conical spring; the rubber gasket provides initial shock absorption, and the conical spring is compressed during horizontal displacement, and consumes energy through friction and elastic deformation; the elastic damping units are symmetrically arranged along the x and y directions to evenly eliminate bidirectional seismic forces; the end of the beam is pre-installed with a limit groove, and the rubber gasket on the transverse part of the connecting sleeve is embedded in the pre-installed limit groove; the conical spring in the elastic damping unit is compressed, and the rubber gasket is shear-deformed, and the vibration energy is consumed through friction and elastic internal energy; a bidirectional snap mechanism is arranged inside the connecting sleeve.

9. An assembly method of the assembled node connection device with flexible shock absorbing function according to any one of claims 1 to 2, characterized in that: The assembly method of the first connection assembly comprises the following steps: ⑴ Prepare components: prepare the first column, the second column, the connecting sleeve, and the hydraulic energy dissipation system components according to the specifications. The hydraulic energy dissipation system components include a limit ball, an annular energy dissipation groove, an arc plate, a piston, and an arc plug cylinder. Ensure that the arc plate is compatible with the arc surface of the limit ball; (2) Install the hydraulic energy dissipation system: machine an annular energy dissipation groove on the upper surface of the second column, and embed the limit ball into the groove; install the arc plate symmetrically on both sides of the limit ball, connect the piston through the arc rod, and insert the end of the piston into the arc plug filled with hydraulic oil; ⑶ Assemble the connection assembly: align and fix the first column and the second column through the connecting sleeve, and ensure that the limit ball is located between the lower surface of the first column and the annular energy dissipation groove of the second column; apply external force to squeeze the limit ball between the two arc plates, at this time, the hydraulic oil in the arc plug cylinder is compressed to generate expansion force, clamping the limit ball to form a stable connection; ⑷ Pre-tightening of the hydraulic system: Keep the hydraulic oil in a compressed state at room temperature, and use its expansion tendency to continuously clamp the limit ball to ensure the initial tightening force of the connection component; Functional verification: Test the stability of the connection device under static load, confirm that the limit ball does not slide, and the hydraulic system has no leakage.

10. A shock absorbing method for an assembled node connection device with a flexible shock absorbing function according to any one of claims 1 to 2, characterized in that: The following steps are involved: ⑴ Earthquake energy triggered response: When the earthquake causes the first column and the second column to have relative displacement, the limit ball slides in the annular energy dissipation groove, squeezing the arc plates on both sides; (2) Hydraulic oil compression energy consumption: After the arc plate is squeezed, it pushes the piston through the arc rod, and the piston compresses the hydraulic oil in the arc plug cylinder to generate a dynamic reaction force; the compression process of the hydraulic oil converts the seismic energy into internal energy, and continuously dissipates energy through oil flow and friction; ⑶ Bidirectional dynamic clamping: The arc plate reciprocates in the direction of the earthquake, driving the piston to slide in both directions. The hydraulic oil forms a dynamic clamping force in the compression and expansion cycle, enhancing the structural stability; (4) Energy dissipation and reset: After the earthquake, the hydraulic oil gradually restores its initial volume due to temperature changes, and the limit ball resets in the annular energy dissipation groove; the elastic deformation auxiliary structure of the arc plate returns to its original position to ensure that the device can be reused.

11. An assembly method of the assembled node connection device with flexible shock absorbing function according to claim 1 or 4, characterized in that: The assembly method of the second connection component comprises the following steps: ⑴ Prepare components: prepare the first column, connecting sleeve, first spring, limit block, columnar elastic block, and second spring, and ensure that the size of the limit block and the columnar elastic block are compatible; (2) Install the first limiting hole assembly: Process the first limiting hole on the side wall of the first column, embed the first spring into the hole, and install the limiting block so that it contacts the first spring; (3) Install the second limiting hole assembly: process a second limiting hole corresponding to the first limiting hole on the inner wall of the connecting sleeve, sleeve the second spring on the outer peripheral wall of the columnar elastic block, and embed the columnar elastic block and the second spring into the second limiting hole together; (4) Alignment and assembly: Align the first column with the connecting sleeve to ensure that the first limiting hole and the second limiting hole are in position, and the limiting block is in contact with the columnar elastic block; use external force to make the limiting block compress the first spring and insert it into the second limiting hole, and the columnar elastic block is squeezed and compresses the second spring to form an initial preload; ⑸ Functional verification: Test the stability of the connection components, confirm that the limit block and the columnar elastic block have no displacement under static load, and the elastic component has no looseness or deformation.

12. A shock absorbing method for an assembled node connection device with a flexible shock absorbing function according to claim 1 or 4, characterized in that: The following steps are involved: ⑴ Earthquake-triggered relative displacement: The earthquake causes relative displacement between the first column and the connecting sleeve, and frictional contact occurs between the limit block and the columnar elastic block; (2) Friction energy dissipation and elastic deformation: After being squeezed, the columnar elastic block moves along the second limit hole, compressing the second spring. Through the elastic deformation of the spring and the friction between the columnar elastic block and the limit block, the seismic energy is converted into heat energy dissipation; ⑶ Dynamic damping adjustment: As the direction of the earthquake changes, the limit block and the columnar elastic block reciprocate, and the compression and rebound of the second spring form dynamic damping to continuously absorb earthquake energy; (4) Reset mechanism: After the earthquake, the elastic restoring force of the second spring pushes the columnar elastic block to reset, and the limit block returns to its initial position under the action of the first spring, ensuring that the device returns to its original state and maintains reusability.

13. An assembly method of the assembled node connection device with flexible shock absorbing function according to claim 1 or 6, characterized in that: The assembly method of the third connection assembly comprises the following steps: ⑴ Prepare components: prepare the connecting sleeve, crossbeam, third spring, limit column, elastic ball, ensure that the size of the third limit hole and the fourth limit hole are compatible, and the elastic ball matches the annular mounting hole; (2) Install the third limiting hole assembly: process the third limiting hole on the side wall of the beam in the beam installation hole, embed the third spring into the third limiting hole, and install the limiting column so that it abuts against the third spring; ⑶Install the fourth limiting hole assembly: process the fourth limiting hole on the side wall of the horizontal part of the connecting sleeve, and set an annular mounting hole in the fourth limiting hole, embed the elastic ball into the annular mounting hole, and ensure that the annular limiting plate is fixed to the open end to prevent the elastic ball from falling off; (4) Alignment and assembly: insert the crossbeam into the crossbeam mounting hole of the connecting sleeve, apply external force to make the limit column compress the third spring and snap into the fourth limit hole of the connecting sleeve; at this time, the elastic ball contacts the limit column in a natural state to form an initial preload; ⑸ Functional verification: Test the connection stability between the crossbeam and the connecting sleeve, confirm that the limit column has no displacement under static load, the elastic ball is in close contact with the limit column, and the third spring is not loose or deformed.

14. A shock absorbing method for an assembled node connection device with a flexible shock absorbing function according to claim 1 or 6, characterized in that: The shock absorbing method of the third connecting assembly comprises the following steps: ⑴ Earthquake-triggered relative displacement: The earthquake causes relative displacement between the beam and the connecting sleeve, and extrusion contact occurs between the limit column and the elastic ball; (2) Friction energy consumption and elastic deformation: The elastic ball is squeezed by the limiting column and moves along the annular mounting hole. The friction between the elastic ball and the limiting column and the damping effect of the annular mounting hole wall converts the seismic energy into heat energy dissipation; ⑶ Dynamic damping adjustment: As the direction of the earthquake changes, the limit column and the elastic ball reciprocate in contact, and the moving path and damping force of the elastic ball are dynamically adjusted along the displacement direction to continuously absorb earthquake energy; (4) Reset mechanism: After the earthquake, the elastic restoring force of the third spring pushes the limit column to reset, and the elastic ball rebounds to the initial position in the annular mounting hole, ensuring that the device returns to its original state and maintains reusability.

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