Novel planar key tooth type slit asymmetric damper

Abstract

The utility model provides a novel plane key tooth type slit asymmetric damper which comprises a lock type steel plate serving as a core energy consumption unit and a sleeve plate assembly serving as a restraining unit, a key tooth type slit asymmetric energy consumption part is formed in the middle of the lock type steel plate, and connecting parts are arranged on the two end sides of the lock type steel plate and used for being connected with building nodes. The energy dissipation part is installed in the sleeve plate assembly in a limited mode and restrained, and external energy is consumed through good ductility and plastic deformation of the energy dissipation part when the outer side end of the lock type steel plate is pressed or pulled. The overall disassembly is convenient, the consumed cost is low, the structural strength is high after installation, high-frequency external force can be borne, and the continuity is longer.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction structure technology, and more specifically, to a novel planar key-tooth slit asymmetric damper. Background Technology

[0002] Metal yield-type dampers are displacement-dependent dampers that utilize the plastic deformation of metal to dissipate energy. As a damping structure in buildings, metal dampers require deformation and yielding to function effectively in order to dissipate energy. Therefore, they typically provide support during minor earthquakes and energy dissipation during major earthquakes. However, repeated use can damage the metal structure, reducing its reliability and necessitating maintenance or replacement. Currently, most metal dampers on the market are integrated structures, combining the restraint and energy dissipation units, requiring complete disassembly and replacement of the entire damper, resulting in higher costs.

[0003] In view of this, the applicant hereby submits this application after studying the existing technology. Utility Model Content

[0004] This invention provides a novel planar key-tooth slit asymmetric damper, which aims to improve at least one of the above-mentioned technical problems.

[0005] To address the aforementioned technical problems, this utility model provides a novel planar key-tooth slit asymmetric damper, comprising a lock-shaped steel plate as the core energy-dissipating unit and a sleeve assembly as the constraint unit. The lock-shaped steel plate has an energy-dissipating section in its middle and connecting sections at both ends. The sleeve assembly is installed outside the energy-dissipating section to provide lateral support for the lock-shaped steel plate, and the connecting sections at both ends extend to the outside of the sleeve assembly. The energy-dissipating section is constructed in the shape of a key-tooth slit. The lock-shaped steel plate, as the energy-dissipating unit, is detachably installed within the sleeve assembly as the constraint unit, facilitating maintenance and replacement. Simultaneously, the integrally formed lock-shaped steel plate possesses good stability, providing support under normal conditions, and the central energy-dissipating section exhibits excellent energy dissipation performance.

[0006] As a further optimization, a first through-slot group is provided through the middle of the lock-shaped steel plate. The first through-slot group has multiple first through-slots arranged in two rows, with the first through-slots in each row arranged adjacently at equal intervals, so that energy-dissipating nodes that can be bent are formed between adjacent first through-slots. The energy-dissipating nodes formed by the first through-slot group are toothed, so that they can deform and yield to dissipate energy when subjected to axial force.

[0007] As a further optimization, the first through groove is diamond-shaped.

[0008] As a further optimization, two second through slots are provided through the lock-shaped steel plate. The second through slots are located on one side of the first through slot group, and the second through slots form openings through the side walls of the lock-shaped steel plate. A reinforcing section is formed between the two second through slots, and the two side walls of the reinforcing section are arc-shaped. Through the reinforcing section, the applied force can be quickly concentrated on the energy-dissipating part, thereby rapidly responding to and dissipating energy in response to the applied force.

[0009] As a further optimization, the inner sidewalls on both sides of the sleeve assembly protrude inward to form first limiting protrusions; the two first limiting protrusions respectively pass through the opening and extend into the two second through slots, and a gap is left between the first limiting protrusions and the slot walls of the second through slots.

[0010] As a further optimization, the bottom end of the sleeve assembly protrudes inward to form a second limiting protrusion; a third through groove is provided through the locking steel plate, the third through groove is located on the other side of the first through groove group, the second limiting protrusion extends into the third through groove, and a gap is left between the second limiting protrusion and the groove wall of the third through groove.

[0011] As a further optimization, the side end of the lock-type steel plate is slidably and tightly attached to the inner side wall of the sleeve assembly.

[0012] As a further optimization, the sleeve assembly includes a lower sleeve plate and an upper sleeve plate, which are connected by a plurality of high-strength bolts.

[0013] As a further optimization, the high-strength bolt is arranged to pass through the first through groove.

[0014] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0015] This application provides a novel planar key-tooth slit asymmetric damper, comprising a lock-shaped steel plate as the core energy-dissipating unit and a sleeve assembly as the constraint unit. The lock-shaped steel plate has a key-tooth slit asymmetric energy-dissipating section formed in its middle, with connecting sections at both ends for connecting building nodes. By confining the energy-dissipating section within the sleeve assembly, it dissipates external energy through the good ductility and plastic deformation of the energy-dissipating section under compression or tension at its outer end. The device is easy to disassemble, has low cost, high structural strength after installation, can withstand high-frequency external forces, and has a longer lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of a novel planar key-tooth slit asymmetric damper according to this utility model;

[0018] Figure 2 This is a complete structural schematic diagram of a novel planar key-tooth slit asymmetric damper according to this utility model;

[0019] The markings in the diagram are: 1. Lock-type steel plate; 2. Sleeve assembly; 3. Lower sleeve plate; 4. Upper sleeve plate; 5. High-strength bolt; 6. Energy dissipation part; 7. Connection part; 8. First through groove; 9. Energy dissipation node; 10. Second through groove; 11. Reinforcing part; 12. First limiting protrusion; 13. Third through groove; 14. Second limiting protrusion. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Depend on Figures 1 to 2As shown, this utility model embodiment provides a novel planar key-tooth slit asymmetric damper, including a lock-shaped steel plate 1 as the core energy-dissipating unit and a sleeve assembly 2 as the constraint unit. The sleeve assembly 2 is divided into a lower sleeve plate 3 and an upper sleeve plate 4. The lower sleeve plate 3 has a groove-shaped structure with ports at both ends. The lower sleeve plate 3 and the upper sleeve plate 4 are connected and installed by high-strength bolts 5. An energy-dissipating part 6 is formed in the middle of the lock-shaped steel plate 1, and the two ends are set as connecting parts 7. The sleeve assembly 2 is installed on the outside of the energy-dissipating part 6 to provide lateral support for the lock-shaped steel plate 1, so that the lock-shaped steel plate 1 can only be displaced and deformed in the axial direction of the sleeve assembly 2, and the external energy is dissipated by the good ductility and plastic deformation of the energy-dissipating part 6 when it is compressed or stretched at the outer end of the lock-shaped steel plate 1. The two ends of the locking steel plate 1 are connected 7, which extend from the port to the outside of the sleeve assembly 2. The connecting part 7 is provided with bolt holes for installation with the building node. When it is necessary to replace the part, the high-strength bolt 5 and the sleeve assembly 2 can be removed to replace the locking steel plate 1.

[0022] Preferably, the energy-dissipating part 6 is constructed as a key-tooth slit. Specifically, a first through groove group is provided through the middle of the lock-type steel plate 1. The first through groove group is arranged in two rows in the x-axis direction, with the two rows parallel to each other. Each row is provided with multiple first through grooves 8, and the first through grooves 8 in each row are arranged adjacently and equally spaced, so that a bendable energy-dissipating node 9 is formed between adjacent first through grooves 8. The first through groove 8 is rhomboid in shape, with its inner corners facing both ends, so that the energy-dissipating part 6 has a tooth shape, thereby consuming external energy through good ductility and plastic deformation when the lock-type steel plate 1 is compressed or stretched at both ends.

[0023] Furthermore, two second through slots 10 are provided through the lock-type steel plate 1. The second through slots 10 are located on one side of the first through slot group. The second through slots 10 penetrate the side wall of the lock-type steel plate 1 to form an opening, so that the lock-type steel plate 1 at the end of the second through slot 10 acts like a key handle, forming a reinforcing part 11 between the two second through slots 10. The two side walls of the reinforcing part 11 are arc-shaped. When the end of the reinforcing part 11 is compressed or stretched, the force will be concentrated at the connection between the reinforcing part 11 and the energy dissipation part 6, so that the force in the energy dissipation part 6 is mainly concentrated in the middle part of the two rows of first through slots 8, driving it to quickly bend and dissipate energy with the sides.

[0024] The inner sidewalls of the sleeve assembly 2 on both sides protrude inward to form first limiting protrusions 12. Two first limiting protrusions 12 extend through openings into two second through slots 10, with a gap between the first limiting protrusions 12 and the walls of the second through slots 10. The bottom end of the sleeve assembly 2 protrudes inward to form a second limiting protrusion 14. A third through slot 13 is provided through the locking steel plate 1, located on the other side of the first through slot group, providing space for the energy-dissipating part 6 to deform. The second limiting protrusion 14 extends into the third through slot 13, with a gap between the second limiting protrusion 14 and the walls of the third through slot 13. By setting the first limiting protrusions 12 and the second limiting protrusions 14, a limiting groove can be formed between them to accommodate the energy-dissipating part 6. Simultaneously, the gap provides sufficient space for the energy-dissipating part 6 of the locking steel plate 1 to undergo compressive deformation, while the limiting groove prevents excessive deformation at the energy-dissipating node 9, thus avoiding brittle fracture. Furthermore, the energy-consuming part 6 can stably dissipate energy during repeated deformation, resulting in a longer service life.

[0025] Preferably, the energy dissipation part 6 formed by the first through slot group, together with the second through slot 10 and the third through slot 13, makes the middle part of the lock-type steel plate 1 in the sleeve assembly 2 present a key tooth-shaped slit, and it is asymmetrical in the z-axis direction. When the damper is subjected to axial load at both ends of the lock-type steel plate 1, that is, in the z-axis direction, it dissipates energy through the good hysteresis performance of the energy dissipation part 6.

[0026] Preferably, the side end of the locking steel plate 1 slides tightly against the inner side wall of the sleeve assembly 2. Thus, the sleeve assembly 2 not only constrains and supports the locking steel plate 1, but also, when the locking steel plate 1 is displaced outwards or inwards by vibration, the friction between it and the sleeve assembly 2 can act as a part of the energy dissipation, enabling the metal damper of this application to dissipate more external energy, resulting in excellent performance.

[0027] Preferably, the high-strength bolts 5 passing through the sleeve assembly 2 are disposed through the first through groove 8. In this embodiment, four high-strength bolts 5 pass through the first through groove 8 respectively, which can further serve as a limiting function to prevent the energy-consuming node 9 from bending excessively and breaking.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel planar key tooth profile slot asymmetric damper characterized by, The application relates to a lock-shaped steel plate and a sleeve plate assembly, wherein the middle part of the lock-shaped steel plate is provided with an energy consumption part, the two end sides are provided with connecting parts, the sleeve plate assembly is installed outside the energy consumption part and is used for providing lateral support for the lock-shaped steel plate, and the two end connecting parts extend to the outside of the sleeve plate assembly; wherein the energy consumption part is in the shape of a key tooth slit.

2. A novel planar key blade profile slot asymmetric damper as defined in claim 1, characterized in that A first through groove group is arranged in the middle part of the lock-shaped steel plate, the first through groove group is provided with a plurality of first through grooves arranged in double rows, the first through grooves in each row are arranged in an adjacent and equal interval mode, and the adjacent first through grooves form energy consumption nodes capable of being bent.

3. A novel planar key tooth profile slot asymmetric damper according to claim 2, characterized in that The first through groove is in the shape of a rhombus.

4. A novel planar key tooth profile slot asymmetric damper as claimed in claim 2, wherein Two second through grooves are arranged in the lock-shaped steel plate, the second through grooves are located on one side of the first through groove group, the second through grooves are provided with openings formed by penetrating the side walls of the lock-shaped steel plate, a reinforcing part is formed between the two second through grooves, and the two side walls of the reinforcing part are arranged in an arc mode.

5. A novel planar key tooth profile slot asymmetric damper according to claim 4, characterized in that The inner side walls of the sleeve plate assembly are inwardly protruded to form first limiting protrusions; the two first limiting protrusions respectively extend into the two second through grooves through the openings, and gaps are left between the first limiting protrusions and the groove walls of the second through grooves.

6. A novel planar key tooth profile slot asymmetric damper according to claim 4, characterized in that The bottom end of the sleeve plate assembly is inwardly protruded to form a second limiting protrusion; a third through groove is arranged in the lock-shaped steel plate, the third through groove is located on the other side of the first through groove group, the second limiting protrusion extends into the third through groove, and a gap is left between the second limiting protrusion and the groove wall of the third through groove.

7. A novel planar key blade profile slot asymmetric damper as defined in claim 1, wherein The side end of the lock-shaped steel plate is in sliding close contact with the inner side wall of the sleeve plate assembly.

8. A novel planar key tooth profile slot asymmetric damper as defined in claim 2, characterized in that The sleeve plate assembly comprises a lower sleeve plate and an upper sleeve plate, and the lower sleeve plate and the upper sleeve plate are connected through a plurality of high-strength bolts.

9. A novel planar key tooth profile slot asymmetric damper according to claim 8, characterized in that The high-strength bolts pass through the first through grooves.

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