Composite self-centering viscous damper

Abstract

The utility model discloses a compound self-resetting viscous damper, which comprises a damper, an oil cylinder, a rear connecting pipe, a connecting rod, a threaded rod, a piston, a piston rod, a rubber ring and a cylinder barrel, wherein the oil cylinder is transversely arranged on the damper, the inside of the oil cylinder is formed with a cavity for placing damping liquid, the rear connecting pipe is transversely connected to one side of the oil cylinder through threads, the inside of the rear connecting pipe is formed with a cavity for mounting an energy dissipation assembly, the energy dissipation assembly comprises the connecting rod for connection, the connecting rod is the threaded rod, and the connecting rod is provided with the piston, the piston is arranged in the cavity of the rear connecting pipe, the piston rod, the rubber ring and the cylinder barrel are integrated, the friction plate is arranged between the outside of the cylinder barrel and the inside of the connecting pipe, the three are tightly fitted, and the friction force generated by the tight fit exists between the friction plate and the cylinder barrel and the rear connecting pipe.

Description

Technical Field

[0001] This utility model relates to the field of building vibration reduction technology, specifically to a composite self-resetting viscous damper for building energy dissipation during earthquakes and self-resetting after earthquakes. Background Technology

[0002] A damper is a device that reduces energy, suppresses or controls vibration by providing resistance to motion. Its core function is to convert the kinetic energy of mechanical vibration or impact into other forms of energy such as heat, thereby reducing the vibration amplitude, extending the vibration period or stabilizing the system motion.

[0003] Viscous dampers are commonly used in building vibration reduction. Buildings experience complex loads during earthquakes, and large-tonnage dampers designed for minor earthquakes are ineffective at dissipating energy. Traditional dampers are all stiffness-free designs and lack self-resetting capabilities, which is detrimental to structural recovery during and after earthquakes. Therefore, there is an urgent need to design a self-resetting damper that can function effectively in minor, moderate, and major earthquakes and possesses a certain degree of stiffness. Utility Model Content

[0004] The purpose of this invention is to provide a composite self-resetting viscous damper to solve the damping and shock absorption reset problem in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite self-resetting viscous damper, comprising:

[0006] damper

[0007] The hydraulic cylinder is horizontally mounted on the damper and has an internal cavity for holding the damping fluid.

[0008] The rear connecting pipe is laterally connected to one side of the oil cylinder via a thread, and an internal cavity is formed for installing energy-consuming components.

[0009] By adopting the above technical solution, the energy dissipation component in the rear connecting pipe can also be connected to the building or physical object. When the building is subjected to vibration, the energy dissipation component is equipped with shock-absorbing and energy-dissipating parts, which can work together with the damping fluid in the hydraulic cylinder to reciprocate with each component in the energy dissipation component to dissipate energy and absorb vibration. At the same time, each component in the energy dissipation component works together to distribute and absorb vibration at different vibration intensities. Then, the energy dissipation component generates a reverse shear force to achieve reset.

[0010] The present invention is further configured such that the energy-consuming component includes a connecting rod for connection.

[0011] By adopting the above technical solution, since the energy dissipation component needs to transmit the vibration force through the rod, by setting the connecting rod, the vibration force generated by the building can be transmitted to the energy dissipation component for vibration reduction and energy dissipation.

[0012] The present invention is further configured such that the connecting rod is a threaded rod with a piston, and is disposed in the cavity of the rear connecting pipe.

[0013] By adopting the above technical solution, the connecting rod is set as a threaded rod, which can be further securely connected with other components to prevent the connecting rod from easily falling off due to vibration. The threaded rod is equipped with a piston, which can push the damping fluid to reduce shock and dissipate energy.

[0014] The present invention is further configured such that the energy-consuming component also includes a rubber ring installed on one side of the threaded rod for energy consumption.

[0015] By adopting the above technical solution, when the building experiences slight vibrations, the threaded rod inside the connecting rod drives the piston to push the damping fluid, and at the same time, it also drives the rubber ring to work together, which can dissipate energy and reduce vibrations during small and moderate earthquakes.

[0016] The present invention is further configured such that the energy-consuming component also includes a friction plate on the cylinder connected to the rubber ring for energy consumption.

[0017] By adopting the above technical solution, when the building is subjected to strong vibrations, the threaded rod transmits the vibration force to the friction plate inside the rubber ring and the cylinder. The piston inside the threaded rod acts together with the damping fluid and the friction plate to absorb energy and reduce vibration during large earthquakes.

[0018] The present invention is further configured such that threaded pressure tubes are installed at both ends inside the oil cylinder, and bushings are provided on the threaded pressure tubes.

[0019] By adopting the above technical solution, the components of the damper are prone to loosening during vibration reduction and energy dissipation, which affects the vibration reduction and energy dissipation effect. The threaded pressure tube and bushing further stabilize the components connected to both ends of the oil cylinder.

[0020] The present invention is further configured such that a front pin for connecting physical objects is installed on one side of the threaded rod.

[0021] By adopting the above technical solution, the front pin head is connected to the threaded rod by a thread, which not only facilitates disassembly and fixation, but also provides better further fixation.

[0022] The present invention is further configured such that a rear pin for connecting physical objects is installed on one side of the rear connecting pipe.

[0023] By adopting the above technical solution, the rear pin head is connected to the threaded rod by a thread, which not only facilitates disassembly and fixation, but also provides better further fixation.

[0024] The technical solution of this utility model has the following beneficial effects:

[0025] 1. The piston rod, rubber ring, and cylinder are vulcanized as a single unit. The friction plate is placed between the outer side of the cylinder and the inner side of the connecting pipe, and the three are tightly fitted together. Frictional force is generated between the friction plate, the cylinder, and the connecting pipe due to this tight fit. During minor and moderate earthquakes, the damping fluid and rubber in the viscous damper work together to dissipate energy; during major earthquakes, the damping fluid and friction plate in the viscous damper dissipate energy, forming a composite viscous damper that simultaneously provides damping and stiffness.

[0026] 2. The components are connected by threads, which not only facilitates disassembly but also ensures stability. In addition, after the piston is displaced, the rubber will generate a reverse shear force, giving the damper of this invention a self-resetting function. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0030] Figure 3 For the present utility model Figure 2 An enlarged view of point A from below.

[0031] Figure label:

[0032] 1. Damper;

[0033] 2. Hydraulic cylinder; 21. Damping fluid; 22. Threaded pressure pipe; 23. Bushing;

[0034] 3. Rear connecting pipe; 31. Front pin; 32. Rear pin;

[0035] 33. Energy-consuming components; 331. Connecting rod; 3311. Threaded rod; 3312. Piston; 332. Rubber ring; 333. Cylinder; 334. Friction plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0037] Example 1:

[0038] refer to Figures 1-3 A composite self-resetting viscous damper.

[0039] Further reference Figure 1 and Figure 2 The system includes: a damper 1, a hydraulic cylinder 2, which is laterally mounted on the damper 1 and has an internal cavity for placing damping fluid 21; and a rear connecting pipe 3, which is laterally threaded to one side of the hydraulic cylinder 2 and has an internal cavity for installing an energy dissipation component 33. The energy dissipation component 33 includes a connecting rod 331 for connection, the connecting rod 331 being a threaded rod 3311 and having a piston 3312, which is disposed within the cavity of the rear connecting pipe 3. A front connector for connecting a physical object is installed on one side of the threaded rod 3311. The pin head 31 and the rear connecting pipe 3 are installed on one side for connecting the actual object. When performing vibration reduction, the front pin head 31 and the rear pin head 32 can be installed in the gap between the equipment or building. When vibration occurs, the vibration force is transmitted to the energy dissipation component 33 through the front pin head 31 or the rear pin head 32. The connecting rod 331 in the energy dissipation component 33 pushes the damping fluid 21 through the piston 3312 to dissipate the energy initially. At the same time, the energy dissipation component 33 can dissipate and reduce vibration force of different degrees.

[0040] refer to Figure 2 and Figure 3 The energy dissipation component 33 includes a connecting rod 331 for connection. The connecting rod 331 is a threaded rod 3311 and has a piston 3312. The energy dissipation component 33 also includes a rubber ring 332 installed on one side of the threaded rod for energy dissipation. It is set in the cavity of the rear connecting pipe 3. The vibration force is transmitted to the piston 3312 through the threaded rod 3311, which in turn pushes the damping fluid 21 to dissipate energy initially. At the same time, the transmitted vibration force is a small vibration. During medium vibration, the threaded rod 3311 pushes the rubber ring 332 connected to the cylinder 333 to dampen the vibration. At the same time, the damping fluid 21 and the rubber ring 332 dampen the vibration and dissipate energy together.

[0041] refer to Figure 2 and Figure 3 The energy dissipation component 33 includes a connecting rod 331 for connection, which is a threaded rod 3311 and has a piston 3312. The energy dissipation component 33 also includes a friction plate 334 on the cylinder 333 connected to the rubber ring 332 for energy dissipation. The vibration force is transmitted to the piston 3312 through the threaded rod 3311, and then the piston 3312 pushes the damping fluid 21 to initially dissipate energy. At the same time, when the transmitted vibration force is a large vibration, the threaded rod 3311 pushes the friction plate 334 connected to the cylinder 333 to dampen the vibration. At the same time, the damping fluid 21 and the friction plate 334 together dampen the vibration and dissipate energy. After the piston 3312 is displaced, the rubber will generate a reverse shear force, so that the damper of this utility model has a self-resetting function.

[0042] Further reference Figure 2 and Figure 3The cylinder 2 has threaded pressure tubes 22 installed at both ends, and the threaded pressure tubes 22 are provided with bushings 23. The threaded pressure tubes 22 and bushings 23 can securely connect the rear connecting tube 3, preventing the rear connecting tube 3 from loosening and falling off due to vibration.

[0043] Further reference Figure 2 and Figure 3 The threaded rod 3311, rubber ring 332 and cylinder 333 are integrally vulcanized. A friction plate 334 is provided between the cylinder 333 and the rear connecting pipe 3. The three are tightly fitted, which can make the overall structure between the components more concentrated. The rear connecting pipe 3 and the oil cylinder 2 are connected by threads. The threaded connection method can further facilitate the disassembly of the damper 1 as a whole, making it easier to replace the parts of the damper 1.

[0044] The above embodiments are merely exemplary models of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions can be made to this utility model within its substance and scope of protection. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

[0045] In the description of this utility model, it should be noted that the terms "inner," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached circle, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, these terms indicating orientation or positional relationship should not be construed as limitations on this utility model.

[0046] In the description of this utility model, it should be further noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, these terms can refer to a fixed connection, a detachable connection, or an integral connection between components; they can also refer to a mechanical connection or an electrical connection; or they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

Claims

1. A composite self-resetting viscous damper, characterized in that: include: Damper (1). The cylinder (2) is horizontally positioned on the damper (1) and has an internal cavity for placing the damping fluid (21). The rear connecting pipe (3) is laterally connected to one side of the oil cylinder (2) via a thread, and has a cavity inside for installing the energy dissipation component (33). The energy dissipation component (33) includes a connecting rod (331) for connection. The connecting rod (331) is a threaded rod (3311) and has a piston (3312) and is located in the cavity of the rear connecting pipe (3). The energy dissipation component (33) also includes a rubber ring (332) installed on one side of the threaded rod (3311) for energy dissipation. The energy dissipation component (33) also includes a friction plate (334) on the cylinder (333) connected to the rubber ring (332) for energy dissipation.

2. The composite self-resetting viscous damper according to claim 1, characterized in that: The cylinder (2) has threaded pressure tubes (22) installed at both ends, and the threaded pressure tubes (22) are provided with bushings (23).

3. The composite self-resetting viscous damper according to claim 1, characterized in that: A front pin (31) for connecting objects is installed on one side of the threaded rod (3311).

4. The composite self-resetting viscous damper according to claim 1, characterized in that: A rear pin (32) for connecting objects is installed on one side of the rear connecting pipe (3).

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