Adjustable structure self-resetting device and use method thereof

Abstract

The present invention discloses an adjustable structural self-resetting device and a method for using the same. The device comprises a cylinder, wherein two opposite side walls of the cylinder are respectively provided with through holes, and connecting rods are slidably connected in the two through holes; one end of the connecting rod extends into the inner cavity of the cylinder and is installed with a piston assembly, and the other end of the connecting rod is located outside the cylinder and is installed with a building connection portion; a sealing ring is installed on the outer wall of the connecting rod, and the sealing ring is slidably connected to the inner wall of the through hole; the piston assembly is slidably connected to the inner wall of the cylinder, and the two groups of piston assemblies divide the inner cavity of the cylinder into a left chamber, a middle chamber, and a right chamber; high-strength springs are installed in the left chamber, the middle chamber, and the right chamber; and a pressure regulating assembly is installed on the cylinder. The present invention can realize bidirectional expansion and contraction, and realizes high-precision adjustment by pressurizing the pressure regulating assembly with hydraulic oil, realizing accurate self-resetting, controlling the recovery amount, and having the characteristics of being easy to use, safe, reliable, and flexible. It is suitable for the fields of earthquake resistance and shock absorption of building structures, and can be used for manual adjustment of structures after an earthquake.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial structure vibration reduction and isolation, and in particular to an adjustable structure self-resetting device and a use method thereof. Background Art

[0002] Earthquakes, as a natural disaster, are characterized by great destructiveness and wide-ranging damage. Once a building structure is subjected to earthquake loads, it may deform and cause permanent damage. Therefore, it is necessary to invent a safe, reliable, and easy-to-use self-resetting structure to reduce post-earthquake deformation of the structure and enhance its recovery capacity.

[0003] The existing self-resetting devices have a series of drawbacks such as limited recovery ability under earthquake loads and are not effective. Therefore, an adjustable structural self-resetting device and a method for using the same are proposed. Summary of the Invention

[0004] The object of the present invention is to provide an adjustable structural self-resetting device and a method of using the same, in order to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides an adjustable structural self-resetting device, comprising a cylinder, wherein two opposite side walls of the cylinder are respectively provided with through holes, and connecting rods are slidably connected in the two through holes; one end of the connecting rod extends into the inner cavity of the cylinder and is installed with a piston assembly, and the other end of the connecting rod is located outside the cylinder and is installed with a building connection portion; a sealing ring is installed on the outer wall of the connecting rod, and the sealing ring is slidably connected to the inner wall of the through hole;

[0006] The piston assembly is slidably connected to the inner wall of the cylinder, and the two groups of piston assemblies divide the inner cavity of the cylinder into a left chamber, a middle chamber and a right chamber; the left chamber, the middle chamber and the right chamber are all installed with high-strength springs and are filled with hydraulic oil;

[0007] A pressure regulating assembly is installed on the cylinder, and the pressure regulating assembly is used to respectively regulate the oil filling amount in the left chamber, the middle chamber and the right chamber and monitor the pressure.

[0008] According to the present invention, there is provided an adjustable structure self-resetting device, wherein the pressure regulating assembly comprises three oil filling pipes and three pressure gauges, and the three oil filling pipes and the three pressure gauges are all mounted on the outer wall of the cylinder;

[0009] A switch valve is installed on the oil filling pipe, and the left chamber, the middle chamber and the right chamber are respectively connected to the three oil filling pipes, and the left chamber, the middle chamber and the right chamber are respectively connected to the three pressure gauges.

[0010] According to the present invention, there is provided an adjustable structural self-resetting device, wherein the cylinder comprises a left cylinder and a right cylinder, the opposite end surfaces of the left cylinder and the right cylinder are both open, the left cylinder and the right cylinder are detachably connected via a flange assembly, and a sealing assembly is installed at the connection between the left cylinder and the right cylinder;

[0011] The through holes are respectively formed on the side walls of the left cylinder and the right cylinder facing each other, and the two piston assemblies are respectively slidably connected to the inner side walls of the left cylinder and the right cylinder; the left cylinder and the right cylinder together form a cylindrical inner cavity, and the two piston assemblies divide the cylindrical inner cavity into the left chamber, the middle chamber, and the right chamber;

[0012] The inner diameters of the left cylinder and the right cylinder are adapted to the outer diameter of the high-strength spring; an oil filling pipe and a pressure gauge are installed on the left end portion of the outer wall of the left cylinder, and a first pressure gauge is installed on the right end portion of the outer wall of the left cylinder near the flange assembly;

[0013] An oil filling pipe is installed on the left end portion of the outer wall of the right cylinder close to the flange assembly, and a pressure gauge is installed on the right end portion of the outer wall of the right cylinder.

[0014] According to the present invention, there is provided an adjustable structural self-resetting device, wherein the piston assembly comprises a piston body, the piston body being fixedly connected to an end of the connecting rod away from the building connection portion, and the piston body and the connecting rod being integrally formed;

[0015] The two piston bodies are respectively slidably connected to the inner side walls of the left cylinder and the right cylinder. A plurality of installation grooves arranged at intervals are circumferentially opened on the outer wall of the piston body, and piston rings are installed in the installation grooves.

[0016] According to the present invention, an adjustable structural self-resetting device is provided. The building connection portion includes a connection block, which is fixed to an end of the connecting rod away from the piston body. A bolt hole is formed on the connection block.

[0017] According to the present invention, an adjustable structural self-resetting device is provided, wherein a plurality of fixing ears are installed on opposite sides of the left cylinder and the right cylinder, and the fixing ears are arranged at equal intervals.

[0018] According to the present invention, there is provided an adjustable structural self-resetting device, wherein the flange assembly includes two flanges, the two flanges being fixedly connected to the outer walls of the left cylinder and the right cylinder on opposite sides, respectively, and the two flanges being detachably connected by a plurality of bolts; the sealing assembly includes a sealing gasket, which is installed between the two flanges;

[0019] The number of the fixing ears is eight, and four fixing ears are respectively installed on the left cylinder and the right cylinder.

[0020] According to the present invention, there is provided an adjustable structural self-resetting device, wherein the number of the mounting grooves is 4 to 6, and the number of the piston rings is the same as the number of the mounting grooves.

[0021] According to the present invention, an adjustable structural self-resetting device is provided, wherein the inner diameters of the left cylinder and the right cylinder are both 0.2m-0.5m; and the wall thicknesses of the left cylinder and the right cylinder are both 2cm-3cm.

[0022] The present invention also provides a method for using an adjustable structure self-resetting device, comprising the following steps:

[0023] Step 1: Install the device at the inflection point of the building structure and connect it to the seismic structure through two building connection parts;

[0024] Step 2: Use the pressure regulating assembly to fill the left, middle and right chambers with hydraulic oil and adjust the pressure; after filling, close the pressure regulating assembly to seal it, and it can operate normally after installation.

[0025] The present invention discloses the following technical effects:

[0026] The device of the present invention is mainly used in the field of earthquake resistance and shock absorption of structures such as bridges, and is mainly used for bridge shock absorption and manual adjustment after earthquakes. It realizes high-precision adjustment by pressurizing the hydraulic oil in the pressure regulating component, realizes accurate self-reset, controls the recovery amount, and is easy to use, safe, reliable and flexible.

[0027] The present invention is provided with a left chamber, a middle chamber and a right chamber, and the left chamber, the middle chamber and the right chamber can be set to different pressure adjustments as needed; by setting different pressures of hydraulic oil, precise control of the seismic resistance and shock absorption performance of the equipment can be achieved through precise pressure monitoring and adjustment, and the structural pressure can be flexibly adjusted as needed. It has strong applicability, simple mechanical structure, low cost, convenient and quick installation, and can be widely promoted and used. It is suitable for the field of seismic resistance and shock absorption of building structures and can be used for manual adjustment of structures after earthquakes;

[0028] The left, middle, and right chambers of the present invention are all equipped with high-strength springs and filled with hydraulic oil. The hydraulic oil not only serves as a transmission medium, but also transmits and stores energy through its incompressibility. In conjunction with two sets of piston assemblies and two connecting rods, when the building structure is subjected to external vibration or impact, the connecting rod drives the piston assembly to slide within the cylinder, compressing or releasing the hydraulic oil in each chamber. At the same time, the high-strength springs store or release energy according to the changes in oil pressure, effectively absorbing and buffering the vibration energy. The device can be compressed and stretched, achieving bidirectional expansion and contraction, realizing the anti-seismic and shock-absorbing functions of the building structure through fine control, and can achieve precise self-reset through manual adjustment after the earthquake.

[0029] The design of the sealing ring in the present invention ensures the sealing of the hydraulic oil in the cylinder, prevents leakage, and ensures stable operation of the system; the present invention is easy to maintain, has a long service life, and is easy to replace parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 Schematic diagram of the structure of the piston body in the present invention;

[0033] Figure 3 Schematic diagram of the structure of the piston assembly of the present invention;

[0034] Figure 4 It is a left side view of the present invention;

[0035] Figure 5 It is a schematic diagram of the installation position of the present invention.

[0036] Among them, 1. through hole; 2. connecting rod; 3. sealing ring; 4. left chamber; 5. middle chamber; 6. right chamber; 7. high-strength spring; 8. oil filling pipe; 9. switch valve; 10. pressure gauge; 11. left cylinder; 12. right cylinder; 13. piston body; 14. mounting groove; 15. piston ring; 16. connecting block; 17. bolt hole; 18. fixing ear; 19. flange; 20. bolt; 21. sealing gasket. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figure 1-Figure 5 The present invention provides an adjustable structure self-resetting device, comprising a cylinder, with through holes 1 respectively opened on the opposite side walls of the cylinder, and connecting rods 2 slidably connected in the two through holes 1; one end of the connecting rod 2 extends into the inner cavity of the cylinder and is installed with a piston assembly, and the other end of the connecting rod 2 is located outside the cylinder and is installed with a building connection portion; a sealing ring 3 is installed on the outer wall of the connecting rod 2, and the sealing ring 3 is slidably connected to the inner wall of the through hole 1; a stainless steel bearing is installed in the through hole 1, and the connecting rod 2 and the sealing ring 3 are both slidably connected to the stainless steel bearing;

[0040] The piston assembly is slidably connected to the inner wall of the cylinder, and the two sets of piston assemblies divide the inner cavity of the cylinder into a left chamber 4, a middle chamber 5 and a right chamber 6; the left chamber 4, the middle chamber 5 and the right chamber 6 are all installed with high-strength springs 7 and are filled with hydraulic oil;

[0041] A pressure regulating assembly is installed on the cylinder, which is used to adjust the oil filling amount in the left chamber 4, the middle chamber 5 and the right chamber 6 respectively and monitor the pressure;

[0042] In this embodiment, the length of the cylinder is 0.5m to 1.0m; the cylinder is made of high-strength steel or stainless steel;

[0043] In this embodiment, the diameter of the high-strength spring 7 itself is 2 cm to 3 cm. The stiffness coefficient k and elastic modulus E parameters of the high-strength spring 7 can be set according to engineering needs and flexibly selected. They are not specifically limited in this embodiment.

[0044] With such a configuration, the device of the present invention is mainly used in the field of earthquake resistance and shock absorption of structures such as bridges, and is mainly used for bridge shock absorption and manual adjustment after an earthquake. High-precision adjustment is achieved by pressurizing the hydraulic oil in the pressure regulating component, achieving precise self-reset and controlling the recovery amount, and having the characteristics of being easy to use, safe, reliable and flexible.

[0045] The present invention is provided with a left chamber 4, a middle chamber 5 and a right chamber 6, and the left chamber 4, the middle chamber 5 and the right chamber 6 can be set to different pressures as needed; by setting different pressures of hydraulic oil, precise control of the seismic resistance and shock absorption performance of the equipment can be achieved through precise pressure monitoring and adjustment, and the structural pressure can be flexibly adjusted as needed. It has strong applicability, a simple mechanical structure, low cost, convenient and quick installation, and can be widely promoted and used. It is suitable for the field of seismic resistance and shock absorption of building structures and can be used for manual adjustment of structures after earthquakes;

[0046] The left chamber 4, middle chamber 5 and right chamber 6 of the present invention are all equipped with high-strength springs 7 and filled with hydraulic oil. The hydraulic oil not only serves as a transmission medium, but also transmits and stores energy through its incompressibility. With the two sets of piston assemblies and two connecting rods 2, when the building structure is subjected to external vibration or impact, the connecting rods 2 drive the piston assemblies to slide in the cylinder, compressing or releasing the hydraulic oil in each chamber. At the same time, the high-strength springs 7 store or release energy according to the changes in oil pressure, effectively absorbing and buffering the vibration energy. The equipment can be compressed and stretched, and can achieve bidirectional expansion and contraction. Through fine control, it realizes the anti-seismic and shock-absorbing functions of the building structure, and can achieve precise self-reset through manual adjustment after the earthquake.

[0047] The design of the sealing ring 3 in the present invention ensures the sealing of the hydraulic oil in the cylinder, prevents leakage of the hydraulic oil, and ensures stable operation of the system; the present invention is easy to maintain, has a long service life, and is easy to replace parts.

[0048] Further optimizing the solution, the pressure regulating assembly includes three oil filling pipes 8 and three pressure gauges 10, and the three oil filling pipes 8 and the three pressure gauges 10 are all installed on the outer wall of the cylinder;

[0049] The three pressure gauges 10 are used to monitor the pressures in the left chamber 4, the middle chamber 5 and the right chamber 6 in the cylinder respectively;

[0050] A switch valve 9 is installed on the oil filling pipe 8, and the left chamber 4, the middle chamber 5 and the right chamber 6 are respectively connected to the three oil filling pipes 8, and the left chamber 4, the middle chamber 5 and the right chamber 6 are respectively connected to three pressure gauges 10.

[0051] Further optimized, the cylinder includes a left cylinder 11 and a right cylinder 12, the opposite end surfaces of the left cylinder 11 and the right cylinder 12 are both set to be open, the left cylinder 11 and the right cylinder 12 are detachably connected by a flange assembly, and a sealing assembly is installed at the connection between the left cylinder 11 and the right cylinder 12;

[0052] A through hole 1 is formed on the opposite side walls of the left cylinder 11 and the right cylinder 12. Two piston assemblies are slidably connected to the inner side walls of the left cylinder 11 and the right cylinder 12 respectively. The left cylinder 11 and the right cylinder 12 together form a cylindrical inner cavity, and the two piston assemblies divide the cylindrical inner cavity into a left chamber 4, a middle chamber 5 and a right chamber 6.

[0053] The inner diameters of the left cylinder 11 and the right cylinder 12 are adapted to the outer diameter of the high-strength spring 7; an oil filling pipe 8 and a pressure gauge 10 are installed on the left end of the outer wall of the left cylinder 11, and a first pressure gauge 10 is installed on the right end of the outer wall of the left cylinder 11 near the flange assembly;

[0054] An oil filling pipe 8 is installed on the left end portion of the outer wall of the right cylinder 12 near the flange assembly, and a pressure gauge 10 is installed on the right end portion of the outer wall of the right cylinder 12;

[0055] As a result, an oil filling pipe 8 and a pressure gauge 10 are respectively provided on the left chamber 4, the middle chamber 5 and the right chamber 6, and it is ensured that the piston does not cross the pressure gauge 10 and the oil filling hole 8 belonging to each chamber during the sliding process.

[0056] In a further optimized solution, the piston assembly includes a piston body 13, which is fixed to an end of the connecting rod 2 away from the building connection portion, and the piston body 13 and the connecting rod 2 are integrally formed;

[0057] The two piston bodies 13 are slidably connected to the inner side walls of the left cylinder 11 and the right cylinder 12 respectively. A plurality of installation grooves 14 arranged at intervals are circumferentially opened on the outer wall of the piston body 13, and piston rings 15 are installed in the installation grooves 14.

[0058] According to a further optimized solution, the building connection portion includes a connection block 16 , which is fixed to the end of the connecting rod 2 away from the piston body 13 , and a bolt hole 17 is provided on the connection block 16 ; the bolt hole 17 is used for connection to the building structure.

[0059] According to a further optimized solution, a plurality of fixing ears 18 are installed on the opposite sides of the left cylinder 11 and the right cylinder 12, and the fixing ears 18 are arranged at equal intervals.

[0060] Further optimized, the flange assembly includes two flanges 19, the two flanges 19 are respectively fixed to the outer walls of the left cylinder 11 and the right cylinder 12 on the opposite side, and the two flanges 19 are detachably connected by a plurality of bolts 20; the sealing assembly includes a sealing gasket 21, which is installed between the two flanges 19; the sealing gasket 21 is used to prevent oil leakage in the middle chamber 5;

[0061] There are eight fixing ears 18, and four fixing ears 18 are respectively installed on the left cylinder 11 and the right cylinder 12;

[0062] The installation position of the fixing ears 18 can be flexibly set as needed, and it is best to arrange them evenly and equidistantly around the cylinder; the fixing ears 18 are used to fix the cylinder to ensure that the equipment can remain stable during shock absorption and self-reset.

[0063] According to a further optimized solution, the number of the mounting grooves 14 is 4 to 6, and the number of the piston rings 15 is the same as the number of the mounting grooves 14;

[0064] The piston ring 15 has a certain degree of expansion and can be tightly connected to the inner wall of the cylinder after installation. The piston ring 15 is used to prevent oil leakage from the piston body 13 during use, achieve high-strength sealing, and ensure normal operation of the equipment.

[0065] According to a further optimization scheme, the inner diameters of the left cylinder 11 and the right cylinder 12 are both 0.2m to 0.5m; and the wall thicknesses of the left cylinder 11 and the right cylinder 12 are both 2cm to 3cm.

[0066] To further optimize the solution, the switch valve 9 is a solenoid valve. The three solenoid valves and three pressure gauges are electrically connected to a control system. According to the preset pressure range and vibration response threshold, the intelligent control system can automatically adjust the oil filling amount and pressure to achieve more accurate shock absorption and self-reset effects.

[0067] The cylinder is equipped with an indicator light and an alarm, which are electrically connected to the control system to promptly remind the user when the equipment needs maintenance or replacement of parts.

[0068] To further optimize the solution, high-precision sensors are installed in the oil filling pipe 8, pressure gauge 10, and inside the cylinder. These sensors are used to collect multiple parameters such as oil pressure, oil temperature, and vibration frequency in real time, ensuring the accuracy and real-time nature of the data and enabling a more comprehensive assessment of the equipment's operating status. The control system automatically adjusts the oil pressure based on the real-time collected vibration frequency and amplitude to achieve the best shock absorption effect.

[0069] Digital filtering technology is used to filter the data collected by high-precision sensors to remove noise and interference signals and improve data quality. At the same time, the collected data is efficiently compressed to reduce storage space while ensuring data integrity and recoverability. Distributed storage or cloud storage solutions are used to ensure data security and reliability. High-speed communication protocols are used to achieve real-time data transmission between high-precision sensors and data acquisition systems, reducing data delays and loss.

[0070] The control system is integrated with the cloud platform to achieve remote monitoring and fault diagnosis; users can view the equipment operation status in real time through mobile phones, computers and other terminals, and receive fault warnings and alarm information.

[0071] The present invention also provides a method for using an adjustable structure self-resetting device, comprising the following steps:

[0072] Step 1: Install the device at the inflection point of the building structure and connect it to the seismic structure through two building connection parts;

[0073] Step 2: Use the pressure regulating assembly to fill hydraulic oil into the left chamber 4, the middle chamber 5 and the right chamber 6 and adjust the pressure; after filling, close the pressure regulating assembly to seal it, and it can operate normally after installation.

[0074] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0075] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An adjustable self-resetting device, characterized in that: The invention comprises a cylinder, wherein two opposite side walls of the cylinder are respectively provided with through holes (1), and connecting rods (2) are slidably connected in the two through holes (1); one end of the connecting rod (2) extends into the inner cavity of the cylinder and is installed with a piston assembly, and the other end of the connecting rod (2) is located outside the cylinder and is installed with a building connection part; a sealing ring (3) is installed on the outer wall of the connecting rod (2), and the sealing ring (3) is slidably connected to the inner wall of the through hole (1); The piston assembly is slidably connected to the inner wall of the cylinder, and the two groups of piston assemblies divide the inner cavity of the cylinder into a left chamber (4), a middle chamber (5) and a right chamber (6); high-strength springs (7) are installed in the left chamber (4), the middle chamber (5) and the right chamber (6), and are filled with hydraulic oil; A pressure regulating assembly is installed on the cylinder, and the pressure regulating assembly is used to respectively regulate the oil filling amount in the left chamber (4), the middle chamber (5) and the right chamber (6) and monitor the pressure; the pressure regulating assembly includes three oil filling pipes (8) and three pressure gauges (10), and the three oil filling pipes (8) and the three pressure gauges (10) are all installed on the outer wall of the cylinder; The oil filling pipe (8) is provided with a switch valve (9), the left chamber (4), the middle chamber (5) and the right chamber (6) are respectively connected to the three oil filling pipes (8), and the left chamber (4), the middle chamber (5) and the right chamber (6) are respectively connected to the three pressure gauges (10); high-precision sensors are installed on the oil filling pipe (8), the pressure gauges (10) and the inside of the cylinder, and the high-precision sensors are used for real-time monitoring of multiple parameters such as oil pressure, oil temperature and vibration frequency; the control system automatically adjusts the oil pressure according to the vibration frequency and amplitude collected in real time.

2. The adjustable structure self-resetting device according to claim 1, characterized in that: The cylinder comprises a left cylinder (11) and a right cylinder (12), the opposite end surfaces of the left cylinder (11) and the right cylinder (12) are both open, the left cylinder (11) and the right cylinder (12) are detachably connected via a flange assembly, and a sealing assembly is installed at the connection between the left cylinder (11) and the right cylinder (12); The through holes (1) are respectively provided on the side walls opposite to each other of the left cylinder (11) and the right cylinder (12), and the two piston assemblies are respectively slidably connected to the inner side walls of the left cylinder (11) and the right cylinder (12); the left cylinder (11) and the right cylinder (12) together form a cylindrical inner cavity, and the two piston assemblies divide the cylindrical inner cavity into the left chamber (4), the middle chamber (5) and the right chamber (6); The inner diameters of the left cylinder (11) and the right cylinder (12) are both adapted to the outer diameter of the high-strength spring (7); an oil filling pipe (8) and a pressure gauge (10) are installed on the left end portion of the outer wall of the left cylinder (11); a first pressure gauge (10) is installed on the right end portion of the outer wall of the left cylinder (11) near the flange assembly. An oil filling pipe (8) is installed on the left end portion of the outer wall of the right cylinder (12) near the flange assembly, and a pressure gauge (10) is installed on the right end portion of the outer wall of the right cylinder (12).

3. The adjustable structure self-resetting device according to claim 2, characterized in that: The piston assembly comprises a piston body (13), the piston body (13) being fixedly connected to an end of the connecting rod (2) away from the building connection portion, and the piston body (13) and the connecting rod (2) being integrally formed; The two piston bodies (13) are slidably connected to the inner side walls of the left cylinder (11) and the right cylinder (12), respectively. A plurality of installation grooves (14) arranged at intervals are circumferentially opened on the outer wall of the piston body (13), and piston rings (15) are installed in the installation grooves (14).

4. The adjustable structure self-resetting device according to claim 3, characterized in that: The building connection portion comprises a connection block (16), the connection block (16) being fixedly connected to an end of the connecting rod (2) away from the piston body (13), and a bolt hole (17) being provided on the connection block (16).

5. The adjustable structure self-resetting device according to claim 3, characterized in that: A plurality of fixing ears (18) are installed on the opposite sides of the left cylinder (11) and the right cylinder (12), and the fixing ears (18) are arranged at equal intervals.

6. The adjustable structure self-resetting device according to claim 5, characterized in that: The flange assembly includes two flanges (19), the two flanges (19) are respectively fixed to the outer walls of the left cylinder (11) and the right cylinder (12) on opposite sides, and the two flanges (19) are detachably connected by a plurality of bolts (20); the sealing assembly includes a sealing gasket (21), and the sealing gasket (21) is installed between the two flanges (19); The number of the fixing ears (18) is eight, and four fixing ears (18) are respectively installed on the left cylinder (11) and the right cylinder (12).

7. The adjustable structure self-resetting device according to claim 5, characterized in that: The number of the mounting grooves (14) is 4 to 6, and the number of the piston rings (15) is the same as the number of the mounting grooves (14).

8. The adjustable structure self-resetting device according to claim 2, characterized in that: The inner diameters of the left cylinder (11) and the right cylinder (12) are both 0.2m to 0.5m; and the wall thicknesses of the left cylinder (11) and the right cylinder (12) are both 2cm to 3cm.

9. A method for using an adjustable structure self-resetting device, based on the adjustable structure self-resetting device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Install the device at the inflection point of the building structure and connect it to the seismic structure through two building connection parts; Step 2: Fill the left chamber (4), the middle chamber (5) and the right chamber (6) with hydraulic oil and adjust the pressure through the pressure regulating assembly; After filling is completed, the closed pressure regulating assembly is sealed and it can operate normally after installation.

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