An ultra-low frequency mass tuned damper

Abstract

The present invention proposes an ultra-low frequency mass tuned damper, which relates to the field of dampers. An ultra-low frequency mass tuned damper comprises a base, a support structure and a mass block, wherein the support structure comprises two support assemblies symmetrically arranged on both sides of the base, and the mass block is arranged between the two support assemblies. The support assembly comprises a support shaft and a plurality of connecting rod mechanisms, wherein the connecting rod mechanisms comprise two connecting plates, slots are provided at both ends of the connecting plates, the slots between the connecting plates overlap, and the support shaft passes through the slots. The free end of any connecting plate is connected to the base and hinged to the base, and the free end of the other connecting plate is hinged to the mass block. Rib plates are arranged in the middle of the two support shafts, a spring is arranged between the two rib plates, and the two ends of the spring are respectively connected to the two rib plates. The present invention has a simple structure and is easy to install, and can achieve ultra-small horizontal stiffness, thereby adapting to ultra-low vibration frequencies, and playing a better protective role for engineering structures.

Description

Technical Field

[0001] The invention relates to the field of dampers, and in particular to an ultra-low frequency mass tuning damper. Background Art

[0002] A damper is a device that provides resistance to movement and dissipates the energy of movement. Using damping to absorb energy and reduce shock is not a new technology. Various dampers (or shock absorbers) have long been used in aerospace, aviation, military, guns, automobiles and other industries to reduce vibration and dissipate energy. Since the 1970s, people have gradually transferred these technologies to structural engineering such as buildings, bridges, and railways, and their development has been very rapid. In particular, the hydraulic viscous damper, which has a history of more than 50 years, has undergone a long process of a large number of experiments, strict reviews, repeated demonstrations, and especially earthquake tests before being accepted by the structural engineering community in the United States. At present, when structures such as buildings and bridges encounter earthquakes, wind or artificial vibration environments, dampers reduce vibration and energy consumption during the vibration process, which can play a good protective role for the above structures. However, with the development of engineering technology, more and more engineering structures require more compact dampers that can adapt to ultra-low vibration frequencies. Summary of the invention

[0003] The purpose of the present invention is to provide an ultra-low frequency mass tuned damper, which has a simple structure, is easy to install, can achieve ultra-small horizontal stiffness, and thus adapt to ultra-low vibration frequencies, thereby playing a better protective role on engineering structures.

[0004] The embodiment of the present invention is achieved as follows:

[0005] The embodiment of the present application provides an ultra-low frequency mass tuned damper, comprising a base, a support structure and a mass block, wherein the support structure comprises two support components symmetrically arranged on both sides of the base, and the mass block is arranged between the two support components;

[0006] The support assembly includes a support shaft and a plurality of connecting rod mechanisms, each connecting rod mechanism includes two connecting plates, both ends of the two connecting plates are provided with slots, the slots of the two connecting plates overlap, and the support shaft passes through the slots;

[0007] The free end of any connecting piece is connected to the base and hinged to the base, and the free end of the other connecting piece is hinged to the mass block;

[0008] Rib plates are arranged in the middle of the two support shafts, a spring is arranged between the two rib plates, and two ends of the spring are respectively connected to the two rib plate connectors.

[0009] In some embodiments of the present invention, a support seat is provided between the mass block and the connecting piece, the mass block is provided on the support seat, and the support seat and the corresponding connecting piece are connected via a pin shaft.

[0010] In some embodiments of the present invention, guide rods are connected between the rib plates, and the springs are sleeved on the guide rods.

[0011] In some embodiments of the present invention, the guide rod is a telescopic structure, which includes a first rod and a second rod, the first rod extends into the second rod, and the first rod can slide freely along the second rod.

[0012] In some embodiments of the present invention, a hinge support is provided between the connecting piece and the base, the hinge support is fixed on the base, and the connecting piece is rotatably connected to the hinge support.

[0013] In some embodiments of the present invention, a through hole is provided on the hinge support, and a connecting shaft is provided between the hinge supports on the same side, and both ends of the connecting shaft pass through the slot hole and the through hole in sequence and are connected to the hinge support pin shaft.

[0014] In some embodiments of the present invention, the rib plate is connected to a shock absorber, one end of the shock absorber is hinged to the rib plate, and the other end is hinged to the base.

[0015] In some embodiments of the present invention, the above-mentioned shock absorber includes a cylinder body and a moving rod, the moving rod extends into the cylinder body, a piston is sleeved on the moving rod, the piston and the cylinder body have an interference fit, and the piston can slide freely in the cylinder body, the free end of the cylinder body is hinged to the base, the free end of the moving rod is hinged to the rib plate, and hydraulic oil is arranged in the cylinder body.

[0016] In some embodiments of the present invention, the angle between the connecting piece and the vertical plane is an acute angle.

[0017] In some embodiments of the present invention, the acute angle is between 0° and 30°.

[0018] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0019] The present invention provides an ultra-low frequency mass tuned damper, comprising a base, a support structure and a mass block, wherein the base is used to carry the support structure to ensure that the support structure can be installed in a stable position. The support structure is a device that provides resistance to movement and consumes movement energy. In a vibration environment such as an earthquake, the support structure can play a good buffering role, absorb the vibration energy of the engineering structure, and achieve the purpose of protecting the engineering structure. The mass block is used to connect with the shock-absorbing position of the engineering structure to ensure that the shock-absorbing structure can be stably connected to the support structure. The support structure comprises two support assemblies symmetrically arranged on both sides of the base, and the mass block is arranged between the two support assemblies. The support assemblies are symmetrically arranged on both sides of the base to support the mass block. The support assembly comprises a support shaft and a plurality of connecting rod mechanisms, wherein the connecting rod mechanism comprises two connecting plates, slots are provided at both ends of the connecting plates, the slots between the connecting plates overlap, and the supporting shaft passes through the slots. In the connecting rod mechanism, the two connecting plates constitute a two-side mechanism, and the supporting shaft connects the two connecting plates in a pin-shaft manner to ensure that the two connecting plates can rotate around the supporting shaft. The supporting shaft connects the connecting rod mechanism, which can stably connect the connecting mechanism located on the same mass fast side. In the connecting rod mechanism, the free end of any connecting piece is connected to the base and hinged to the base, and the free end of the other connecting piece is hinged to the mass block. A rib plate is provided in the middle of the two support shafts, a spring is provided between the two rib plates, and the two ends of the spring are respectively connected to the two rib plates. The above spring can play a buffering role. When the mass block moves, the connecting rod mechanism moves. During the movement of the connecting rod mechanism, the support shafts on both sides will be driven to move, and the two support shafts will approach or move away from each other, thereby driving the spring to compress or pull up. The spring can effectively play a buffering role during the compression or pulling process. Assuming that the angle between the connecting piece and the vertical plane is α, and the force of the spring acting on the support shaft is a, the force on the mass block subjected to the connecting piece is asinα. It can be seen from the above formula that the force on the mass block subjected to the connecting piece is proportional to α. When α decreases, the force on the mass block subjected to the connecting piece decreases, thereby reducing the vertical stiffness of the mass block, thereby reducing the vertical natural frequency of the mass block, and the natural frequency of the engineering structure connected to the mass block is also lower.

[0020] Therefore, the ultra-low frequency mass tuned damper has a simple structure and is easy to install. It can achieve ultra-small horizontal stiffness and thus adapt to ultra-low vibration frequencies, thus providing better protection for engineering structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 It is a front view of an embodiment of the present invention;

[0024] Figure 3 A side view of an embodiment of the present invention;

[0025] Figure 4 A top view of an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a guide rod in an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the shock absorber in the embodiment of the present invention.

[0028] Icon: 1-base, 2-shock absorber, 3-connecting plate, 4-support seat, 5-mass block, 6-spring, 7-support shaft, 8-rib plate, 9-connecting shaft, 10-hinge support, 11-first rod, 12-second rod, 13-cylinder body, 14-movement rod, 15-piston, 16-damping hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present invention, "plurality" means at least 2.

[0035] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example

[0037] Please refer to Figure 1 , Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention. This embodiment provides an ultra-low frequency mass tuned damper, including a base 1, a supporting structure and a mass block 5. The base 1 is used to support the supporting structure to ensure that the supporting structure can be installed in a stable position.

[0038] The support structure is a device that provides resistance to movement and consumes movement energy. In a vibration environment such as an earthquake, the support structure can play a good buffering role, absorb the vibration energy of the engineering structure, and achieve the purpose of protecting the engineering structure. The mass block 5 is used to connect with the shock-absorbing position of the engineering structure to ensure that the shock-absorbing structure can be stably connected to the support structure.

[0039] In this embodiment, the support structure includes two support components symmetrically arranged on both sides of the base 1, and the mass block 5 is arranged between the two support components. The support components are symmetrically arranged on both sides of the base 1, and are used to support the mass block 5. The support components include a support shaft 7 and a plurality of connecting rod mechanisms, and the connecting rod mechanism includes two connecting plates 3, and slots are opened at both ends of the connecting plates 3. The slots between the connecting plates 3 overlap, and the support shaft 7 passes through the slots. In the connecting rod mechanism, the two connecting plates 3 constitute a two-side mechanism, and the support shaft 7 connects the two connecting plates 3 in a pin-shaft manner to ensure that the two connecting plates 3 can rotate around the support shaft 7. The support shaft 7 connects the connecting rod mechanism, which can stably connect the connecting mechanism located on the same mass fast side.

[0040] In the above-mentioned connecting rod mechanism, the free end of any connecting piece 3 is connected to the base 1 and hinged to the base 1, and the free end of the other connecting piece 3 is hinged to the mass block 5. A rib plate 8 is provided in the middle of the two support shafts 7, and a spring 6 is provided between the two rib plates 8. The two ends of the spring 6 are respectively connected to the two rib plates 8. The above-mentioned spring 6 can play a buffering role. When the mass block 5 moves, the connecting rod mechanism moves. During the movement of the connecting rod mechanism, the support shafts 7 on both sides will be driven to move, and the two support shafts 7 will move closer to or away from each other, thereby driving the spring 6 to compress or pull up. The spring 6 can effectively play a buffering role during the compression or pulling process.

[0041] In this embodiment, assuming that the angle between the connecting piece 3 and the vertical plane is α, and the force of the spring 6 on the support shaft 7 is a, the force acting on the connecting piece 3 on the mass block 5 is asinα. It can be seen from the above formula that the force acting on the connecting piece 3 on the mass block 5 is proportional to α. When α decreases, the force acting on the connecting piece 3 on the mass block 5 decreases, thereby reducing the vertical stiffness of the mass block 5, thereby reducing the vertical natural frequency of the mass block 5, and the natural frequency of the engineering structure connected to the mass block 5 is also lower.

[0042] Therefore, the structure is simple and easy to install, and it can achieve ultra-small horizontal stiffness, thereby adapting to ultra-low vibration frequencies and playing a better protective role on engineering structures.

[0043] It should be noted that the support shaft 7 can also play a connecting role to ensure that the connecting rod mechanism on the support shaft 7 can achieve synchronous up and down movement.

[0044] Please refer to Figure 1 and Figure 2 In some implementations of this embodiment, a support seat 4 is provided between the mass block 5 and the connecting piece 3, the mass block 5 is provided on the support seat 4, and the support seat 4 is connected to the corresponding connecting piece 3 via a pin. The support seat 4 is used to support the mass block 5 so that the mass block 5 can be stably provided above the base 1.

[0045] In this embodiment, the support seat 4 is connected to the upper connecting piece 3, and the support seat 4 and the connecting piece 3 are rotatably connected by a pin. When the support seat 4 moves, the connecting piece 3 can rotate with the support seat 4, ensuring that the connecting rod mechanism where the connecting piece 3 is located can move up and down with the support seat 4.

[0046] Please refer to Figure 4 In some implementations of the present embodiment, guide rods are connected between the ribs 8, and the spring 6 is sleeved on the guide rods.

[0047] In this embodiment, the guide rod can play a guiding role, ensuring that the spring 6 always moves on the same axis when moving between the two support shafts 7. At the same time, the guide rod is connected to the two support shafts 7, which can make the two support components move synchronously.

[0048] Please refer to Figure 5 In some implementations of the present embodiment, the guide rod is a telescopic structure, and the telescopic structure includes a first rod 11 and a second rod 12. The first rod 11 extends into the second rod 12, and the first rod 11 can slide freely along the second rod 12.

[0049] In this embodiment, the guide rod is a telescopic structure, and the two support shafts 7 will approach or move away from each other during the movement. When approaching each other, the distance between the two support shafts 7 in the horizontal direction becomes smaller, and at this time, the first rod 11 continues to extend into the second rod 12, ensuring that the first rod 11 and the second rod 12 are in a contracted state. When moving away from each other, the distance between the two support shafts 7 in the horizontal direction increases, and at this time, the first rod 11 moves in the opposite direction, and the first rod 11 and the second rod 12 are in an extended state. In this way, it can be ensured that the two support shafts 7 can move freely in the horizontal direction during the movement, and will not be interfered by the guide rod, thereby preventing the guide rod from affecting the movement of the support structure.

[0050] Please refer to Figure 2 In some implementations of the present embodiment, a hinge support 10 is provided between the connecting piece 3 and the base 1, the hinge support 10 is fixed on the base 1, and the connecting piece 3 is rotatably connected with the hinge support 10. The hinge support 10 is provided between the lower connecting piece 3 and the base 1. The hinge support 10 mainly plays a buffering role to prevent the connecting piece 3 from directly contacting the base 1 and causing rotation damage. At the same time, the hinge support 10 is hingedly connected to the connecting piece 3, and the free rotation of the connecting piece 3 on the hinge support 10 is realized through the cooperation of the hinge.

[0051] Please refer to Figure 1 and Figure 2In some implementations of the present embodiment, a through hole (not marked in the figure) is opened on the above-mentioned hinge support 10, and a connecting shaft 9 is arranged between the above-mentioned hinge supports 10 located on the same side. Both ends of the above-mentioned connecting shaft 9 pass through the above-mentioned slot hole and the above-mentioned through hole in sequence, and are connected to the above-mentioned hinge supports 10 with pins.

[0052] In this embodiment, the connecting shaft 9 is mainly used to realize the synchronous rotation of the connecting piece 3 to ensure that the connecting rod mechanism located on the same side can rotate synchronously with the connecting shaft 9 .

[0053] Please refer to Figure 1 and Figure 3 In some implementations of this embodiment, the rib plate 8 is connected to a shock absorber 2, one end of the shock absorber 2 is hinged to the rib plate 8, and the other end is hinged to the base 1. The shock absorber 2 is mainly used for auxiliary shock absorption. After the shock absorber 2 is connected to the support shaft 7, the shock absorber 2 can play a role in buffering and shock absorption after the support shaft 7 moves.

[0054] Please refer to Figure 6 In some implementations of the present embodiment, the shock absorber 2 includes a cylinder body 13 and a moving rod 14, the moving rod 14 extends into the cylinder body 13, a piston 15 is sleeved on the moving rod 14, the piston 15 is interference fit with the cylinder body 13, and the piston 15 can slide freely in the cylinder body 13, the free end of the cylinder body 13 is hinged to the base 1, the free end of the moving rod 14 is hinged to the rib plate 8, and hydraulic oil is arranged in the cylinder body 13.

[0055] In this embodiment, when the rib plate 8 moves under the action of the support shaft 7, the movement rod 14 is driven to move. When the movement rod 14 moves toward the cylinder body 13, the piston 15 is driven to move. The oil volume on one side of the piston 15 is reduced, and the oil volume on the other side is increased, so that the oil plays a buffering role. Similarly, when the movement rod 14 moves away from the cylinder body 13, the piston 15 is driven to move. The oil volume on one side of the piston 15 increases, and the oil volume on the other side becomes smaller. Due to the effect of the external atmospheric pressure, the oil plays a buffering role.

[0056] Please refer to Figure 6 In this embodiment, a damping hole 16 is provided on the piston 15, and the damping holes 16 are respectively connected to the oil in the cylinder 13 on both sides of the piston 15. When the volume of the cylinder 13 on one side of the piston 15 is compressed or increased, the oil on the side with reduced volume will enter the cylinder 13 on the side with increased volume along the damping hole 16, thereby achieving a better buffering effect.

[0057] In some implementations of the present embodiment, the angle between the connecting piece 3 and the vertical plane is an acute angle. The angle between the connecting piece 3 and the vertical plane is an acute angle, and sinα in the above formula asinα is set as a constant k. When the above angle α is set as an acute angle, k is between 0 and 1. It is known that the force b = sinαa exerted by the connecting piece 3 on the mass block 5 is b = ka. From the above formula, it can be seen that k is positively correlated with the force b exerted by the connecting piece 3 on the mass block 5. Therefore, after α is an acute angle, the k value is between 0 and 1, which can ensure that b is less than a. And the smaller α is, the smaller b is, and then the smaller the vertical stiffness of the mass block 5 is, and the lower the vertical natural frequency is. The natural frequency of the engineering structure connected to the mass block 55 is also lower.

[0058] In the present embodiment, the above-mentioned acute angle is between 0 and 30°. Theoretically, the smaller α is, the better. However, when α is less than 5°, the two connecting pieces 3 in the same linkage mechanism will gradually tend to be parallel, making it impossible for the two connecting pieces 3 to rotate effectively. When α is greater than 30°, the distance between the connecting pieces 3 will be shortened, thereby reducing the stroke of the mass block 5. Therefore, in the present embodiment, when the above-mentioned acute angle is between 5 and 30°, it can ensure the normal rotation of the above-mentioned two connecting pieces 3 and meet the stroke requirements of the mass block 5, and α is relatively small, which can meet the construction requirements of low vertical natural frequency.

[0059] When in use, the ultra-low frequency mass tuned damper is installed at the shock absorbing position of the engineering structure, so that the mass block 5 is connected to the engineering structure. When an earthquake, hurricane or other vibration factors occur, the engineering structure vibrates, and the vibrating engineering structure moves at the mass block 5, and drives the mass block 5 to move, and the mass block 5 drives the connecting piece 3 to move, and the support shaft 7 on the connecting piece 3 also moves at the same time. After the two support shafts 7 move, there is a movement of shortening the distance or approaching the distance, thereby converting the simple harmonic motion of the connecting mechanism in the up and down directions into the intermittent motion of the two support shafts 7 in the horizontal direction. When the two support shafts 7 are close, the spring 6 between the support shafts 7 is compressed, and when the two support shafts 7 are far away, the spring 6 between the support shafts 7 is stretched. Therefore, the compression and stretching of the spring 6 can play a shock absorbing and buffering role. Similarly, the shock absorber 2 located on the other side of the rib plate 8 on the support shaft 7 also plays an auxiliary buffering role during the movement of the support shaft 7.

[0060] In summary, an embodiment of the present invention provides an ultra-low frequency mass tuned damper, including a base 1, a support structure and a mass block 5, wherein the base 1 is used to carry the support structure to ensure that the support structure can be installed in a stable position. Among them, the support structure is a device that provides resistance to movement and consumes movement energy. In a vibration environment such as an earthquake, the support structure can play a good buffering role, absorb the vibration energy of the engineering structure, and achieve the purpose of protecting the engineering structure. The mass block 5 is used to connect with the shock-absorbing position of the engineering structure to ensure that the shock-absorbing structure can be stably connected to the support structure. The support structure includes two support assemblies symmetrically arranged on both sides of the base 1, and the mass block 5 is arranged between the two support assemblies. The support assemblies are symmetrically arranged on both sides of the base 1 to support the mass block 5. The support assembly includes a support shaft 7 and a plurality of connecting rod mechanisms, and the connecting rod mechanism includes two connecting plates 3, slots are opened at both ends of the connecting plates 3, the slots between the connecting plates 3 overlap, and the support shaft 7 passes through the slots. In the connecting rod mechanism, the two connecting plates 3 constitute a two-side mechanism, and the support shaft 7 connects the two connecting plates 3 in a pin-shaft manner to ensure that the two connecting plates 3 can rotate around the support shaft 7. The support shaft 7 connects the connecting rod mechanism, which can make the connecting mechanism located on the same mass fast side stably connected. In the connecting rod mechanism, the free end of any connecting piece 3 is connected to the base 1 and hinged to the base 1, and the free end of the other connecting piece 3 is hinged to the mass block 5. A rib plate 8 is provided in the middle of the two support shafts 7, and a spring 6 is provided between the two rib plates 8. The two ends of the spring 6 are respectively connected to the two rib plates 8. The above-mentioned spring 6 can play a buffering role. When the mass block 5 moves, the connecting rod mechanism moves. During the movement of the connecting rod mechanism, the support shafts 7 on both sides will be driven to move, and the two support shafts 7 will approach or move away from each other, thereby driving the spring 6 to compress or pull up. The spring 6 can effectively play a buffering role during the compression or pulling process. Assuming that the angle between the connecting piece 3 and the vertical plane is α, and the force of the spring 6 acting on the support shaft 7 is a, then the force acting on the mass block 5 by the connecting piece 3 is asinα. It can be seen from the above formula that the force exerted on the mass block 5 by the connecting piece 3 is proportional to α. When α decreases, the force exerted on the mass block 5 by the connecting piece 3 decreases, thereby reducing the vertical stiffness of the mass block 5, thereby lowering the vertical natural frequency of the mass block 5, and the natural frequency of the engineering structure connected to the mass block 5 is also lower. Therefore, the structure is simple, easy to install, and can achieve ultra-small horizontal stiffness, thereby adapting to ultra-low vibration frequencies, and playing a better protective role on engineering structures.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultra-low frequency mass tuned damper, characterized in that: It comprises a base, a support structure and a mass block, wherein the support structure comprises two support components symmetrically arranged on both sides of the base, and the mass block is arranged between the two support components; The support assembly includes a support shaft and a plurality of connecting rod mechanisms, each of the connecting rod mechanisms includes two connecting plates, both ends of the two connecting plates are provided with slots, the slots of the two connecting plates overlap, and the support shaft passes through the slots; The free end of any one of the connecting pieces is connected to the base and hinged to the base, and the free end of another connecting piece is hinged to the mass block; A rib plate is arranged in the middle of the two support shafts, a spring is arranged between the two rib plates, and two ends of the spring are respectively connected to the two rib plate connectors.

2. The ultra-low frequency mass tuned damper according to claim 1, characterized in that: A support seat is arranged between the mass block and the connecting piece, the mass block is arranged on the support seat, and the support seat and the corresponding connecting piece are connected through a pin shaft.

3. The ultra-low frequency mass tuned damper according to claim 1, characterized in that: A guide rod is connected between the rib plates, and the spring is sleeved on the guide rod.

4. The ultra-low frequency mass tuned damper according to claim 3, characterized in that: The guide rod is a telescopic structure, which includes a first rod and a second rod. The first rod extends into the second rod, and the first rod can slide freely along the second rod.

5. The ultra-low frequency mass tuned damper according to claim 1, characterized in that: A hinge support is arranged between the connecting piece and the base, the hinge support is fixed on the base, and the connecting piece is rotatably connected to the hinge support.

6. The ultra-low frequency mass tuned damper according to claim 5, characterized in that: A through hole is provided on the hinge support, and a connecting shaft is provided between the hinge supports on the same side. Two ends of the connecting shaft pass through the slot hole and the through hole in sequence and are connected to the hinge support pin shaft.

7. The ultra-low frequency mass tuned damper according to claim 1, characterized in that: The rib plate is connected with a shock absorber, one end of the shock absorber is hinged to the rib plate, and the other end is hinged to the base.

8. The ultra-low frequency mass tuned damper according to claim 7, characterized in that: The shock absorber includes a cylinder body and a moving rod, the moving rod extends into the cylinder body, a piston is sleeved on the moving rod, the piston is interference fit with the cylinder body, and the piston can slide freely in the cylinder body, the free end of the cylinder body is hinged to the base, the free end of the moving rod is hinged to the rib plate, and hydraulic oil is arranged in the cylinder body.

9. The ultra-low frequency mass tuned damper according to claim 1, characterized in that: The included angle between the connecting piece and the vertical surface is an acute angle.

10. The ultra-low frequency mass tuned damper according to claim 9, characterized in that: The acute angle is between 0° and 30°.

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