A vibration damping mat spring for a building

Abstract

The utility model discloses a kind of damping pad springs for building, it is related to building damping technical field, including main body, pad tray one, pad tray two, top tray, leaf spring one, stud, nut, cylinder, piston one and piston two, the top of pad tray two is fixedly connected stud, piston two is slidably connected in the inside of stud, the bottom of pad tray one is fixedly connected top tray, the bottom of top tray is fixedly connected leaf spring one and cylinder, nut is threadedly connected in stud, leaf spring one is connected between top tray and nut, the bottom of cylinder is connected piston one, piston one is slid within stud and located above piston two.The utility model is in parallel arrangement by the elastic support of leaf spring one and piston one, piston two in stud compression air formed damping mechanism, work cooperatively, effectively solved the problem that existing damping pad energy dissipation is poor, easy resonance.

Description

Technical Field

[0001] This utility model relates to the field of building vibration reduction technology, and in particular to a vibration damping pad spring for buildings. Background Technology

[0002] In modern construction engineering, in order to protect the building structure and internal precision equipment from the impact of vibration sources such as earthquakes, wind, and surrounding environmental vehicles, vibration damping devices need to be installed in the foundation and key structural parts. Spring vibration damping pads are a common type of vibration damping device, which mainly uses the elastic deformation of springs to absorb and isolate vibration energy, thereby playing a buffering and protective role. However, many existing spring vibration damping pads have relatively simple structures, and their vibration damping function mainly relies on the elasticity of the spring itself, lacking an effective energy dissipation mechanism. When the external vibration frequency is close to the natural frequency of the damping pad, this structure that relies solely on elasticity will cause resonance, resulting in a sharp increase in amplitude. Not only will it fail to achieve the vibration damping effect, but it will also aggravate the damage of vibration to the building structure. In addition, after the impact load is applied, the spring system without damping will produce long-term reciprocating oscillations, making it difficult to quickly return to a stable state.

[0003] Therefore, this utility model proposes a vibration damping pad spring for buildings to overcome the shortcomings of the prior art. Utility Model Content

[0004] In view of the problems of poor energy dissipation, easy resonance, and complicated and inconvenient installation structure of existing vibration damping pad springs used in buildings, this utility model aims to provide a vibration damping pad spring with an improved structure that can effectively solve the above problems.

[0005] This utility model provides a vibration damping pad spring for buildings, including a main body, a first pad, a second pad, a top plate, a first leaf spring, a stud, a nut, a cylinder, a first piston, and a second piston.

[0006] Among them, the stud, piston one and piston two together constitute the air damping mechanism, and leaf spring one constitutes the main elastic support mechanism.

[0007] Furthermore, a stud is fixedly connected to the top of the second pad, and the second piston is slidably connected inside the stud; a top plate is fixedly connected to the bottom of the first pad; a nut is threadedly connected to the outside of the stud, and a leaf spring is connected between the bottom of the top plate and the top of the nut; a cylinder is also fixedly connected to the bottom of the top plate, and a piston is connected to the bottom of the cylinder. The piston slides coaxially inside the stud and is located above the second piston. Through this structural combination, the spring mechanism and the air damping mechanism are set in parallel to achieve vibration reduction in a coordinated manner.

[0008] Preferably, it also includes a mounting plate, which is fixedly connected to the top and bottom of the multiple bodies to integrate the multiple bodies into a single device.

[0009] Preferably, the outer periphery of the top plate is provided with a stepped portion, and a reinforcing rib is fixedly connected to the stepped portion of the top plate to enhance the structural integrity of the top plate.

[0010] Preferably, the second pad has a reserved hole for fixing and installing the vibration damping pad spring.

[0011] Preferably, it also includes a guide mechanism for quick installation. The guide mechanism includes a guide tube, a notch, a tenon plate, a rotating shaft, and a second leaf spring. The guide tube is fixedly connected to the top of the second pad and guides the main body. The second pad has a notch. The tenon plate is rotatably connected to the guide tube through the rotating shaft, and the second leaf spring is also fixedly connected to the rotating shaft. Under the elastic force of the second leaf spring, the tenon plate is engaged in a pre-set groove in the notch to quickly fix the guide tube.

[0012] This utility model has the following beneficial effects: 1. This utility model solves the technical problems of poor energy dissipation capacity and easy resonance of vibration damping pads in the prior art by adding a damping mechanism in which the piston compresses air in the stud and the damping mechanism works in coordination with the leaf spring.

[0013] 2. This utility model solves the technical problems of complex connection structure and time-consuming and labor-intensive installation and maintenance of similar components in the prior art by setting a tenon plate that can be rotated by a pivot on the guide tube and using the elastic force of the leaf spring to make the tenon plate automatically snap into the recess of the pad. Attached Figure Description

[0014] Figure 1 This is a perspective view of a vibration damping pad spring for building proposed in this utility model; Figure 2 This is a front view of a vibration damping pad spring for building proposed in this utility model; Figure 3 This is an exploded view of the internal structure of a vibration damping pad spring for building proposed in this utility model; Figure 4 This is a partial structural diagram of a vibration damping pad spring for building proposed in this utility model; Figure 5 This is a cross-sectional view of a partial structure of a vibration damping pad spring for building proposed in this utility model.

[0015] Legend: 1. Main body; 2. Pad 1; 3. Pad 2; 4. Mounting plate; 5. Guide tube; 6. Top plate; 7. Reinforcing rib; 8. Leaf spring 1; 9. Stud; 10. Nut; 11. Cylindrical; 12. Piston 1; 13. Piston 2; 14. Notch; 15. Tenon plate; 16. Leaf spring 2; 17. Shaft; 18. Reserved hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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 some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model. Example

[0017] Please refer to Figures 1 to 5 This utility model provides a vibration damping pad spring for buildings, which aims to solve the problems of poor energy dissipation and easy resonance of existing vibration damping pads. Figures 1 to 3 As shown, a basic frame for a vibration damping spring used in construction consists of a main body 1, a first pad 2, a second pad 3, and a mounting plate 4. The second pad 3 serves as the mounting base. Multiple main bodies 1 are vertically fixedly connected to the top of the second pad 3. The first pad 2 is fixedly connected to the top of the multiple main bodies 1. The mounting plate 4 is fixedly connected to the top and bottom of the multiple main bodies 1 to integrate the multiple main bodies 1 into a single device. Between the first pad 2 and the second pad 3, a spring damping mechanism and an air damping mechanism are arranged in parallel. The spring damping mechanism includes a top plate 6, a reinforcing rib 7, a leaf spring 8, and a nut 10. The air damping mechanism includes a stud 9, a cylinder 11, a piston 12, and a piston 2 13. Specifically... The bottom of the first pad 2 is fixedly connected to the top plate 6, and the top of the second pad 3 is fixedly connected to the stud 9. The nut 10 is threadedly connected to the stud 9. The two ends of the first leaf spring 8 are fixedly connected to the bottom of the top plate 6 and the top of the nut 10, respectively. The bottom of the top plate 6 is also fixedly connected to the cylinder 11, and the bottom of the cylinder 11 is fixedly connected to the piston 12. The second piston 13 is slidably connected to the inside of the stud 9, and the first piston 12 is slidably slidable inside the stud 9 and is located above the second piston 13. In order to enhance the structural strength, the outer periphery of the top plate 6 is provided with a stepped part, and the reinforcing rib 7 is fixedly connected to the stepped part. In order to facilitate the fixing of the entire device, the second pad 3 is provided with a reserved hole 18.

[0018] By using an air damping mechanism installed inside the spring damping mechanism, vibration energy is converted into heat energy and dissipated, thereby effectively suppressing resonance. Please refer to [reference needed]. Figure 3The air damping mechanism is described in detail below. The air damping mechanism uses a stud 9 as the cylinder body. The stud 9 is a hollow tubular structure with external threads on its outer wall to accommodate the installation of the nut 10. The lower end of the stud 9 is fixedly connected to the top of the second gasket 3 by welding or integral molding. The function of the stud 9 is to define a sealed space for compressed air. Inside the stud 9, near the opening at the lower end, a piston 13 is slidably connected. Simultaneously, a piston 12 is fixedly connected to the bottom of the cylinder 11, which is fixedly connected to the bottom of the top plate 6. The piston 12 is also slidably connected inside the stud 9 and is always positioned relative to the piston 13. Above, both piston 12 and piston 2 13 have sealing structures on their outer circumferences to ensure the airtightness of the internal space of the stud 9. When the device is under pressure, the pad 1 2 drives the top plate 6 downward. The top plate 6 drives piston 12 to slide downward inside the stud 9 through the cylinder 11. When piston 12 slides downward, it compresses the air between piston 12 and piston 2 13. The compressed air then pushes piston 2 13 downward. This structure, which uses the compressibility and viscosity of air to impede the movement of the piston, ensures that a continuous and effective damping force is generated throughout the entire stroke of the spring being compressed and rebounding, thereby quickly dissipating vibration energy.

[0019] Please refer to Figure 1 In order to integrate multiple main bodies 1 into a whole device, it also includes a mounting plate 4, which is fixedly connected to the top of multiple main bodies 1 and also fixedly connected to the bottom of multiple main bodies 1. The multiple separate main bodies 1 are integrated into a high load-bearing capacity whole structure through the upper and lower mounting plates 4. Please refer to Figure 3 and Figure 5 To enhance the structural strength and stability of the top plate 6 under pressure, preferably, the outer periphery of the top plate 6 is provided with a stepped portion, and the reinforcing rib 7 is fixedly connected to the stepped portion of the top plate 6. The reinforcing rib 7 extends from the stepped portion and abuts against the bottom surface of the top plate 6 to form a triangular stable support. Please refer to Figure 1 and Figure 3 To ensure reliable fixation of the entire device to the building floor, multiple pre-drilled holes 18 are provided on the pad 2 3. The pre-drilled holes 18 penetrate the pad 2 3 and are used to install anchor bolts or expansion screws. Please refer to Figure 3 and Figure 4 To ensure that the main body 1 maintains precise vertical guidance during compression and rebound and to prevent lateral displacement, a guide tube 5 is fixedly connected to the top of the pad 2 3. The inner hole of the guide tube 5 is sleeved on the outer periphery of the main body 1 to limit and guide the main body 1. To enable quick installation and removal of the guide tube 5, a notch 14 is provided on the top of the second pad 3. The installation end of the guide tube 5 passes through the notch 14. A tenon plate 15 is also rotatably connected to the guide tube 5. The tenon plate 15 is used to lock the guide tube 5 onto the second pad 3. Specifically, the tenon plate 15 is rotatably connected to the guide tube 5 through a rotating shaft 17. A leaf spring 16 is fixedly connected to the rotating shaft 17. The leaf spring 16 provides torsional elasticity to the tenon plate 15. During assembly, the guide tube 5 is placed into the notch 14, and the tenon plate 15 is rotated. Under the elastic force of the leaf spring 16, the tenon plate 15 automatically engages in the pre-set groove in the notch 14, thereby firmly fixing the guide tube 5 onto the second pad 3.

[0020] Working Principle: When the building structure transmits vertical pressure or vibration to pad 2, pad 2 drives the top plate 6, which is fixedly connected to its bottom, to move downwards. At this time, the spring damping mechanism and the air damping mechanism connected to the top plate 6 start working simultaneously. In the spring damping mechanism, the downward movement of the top plate 6 directly compresses the leaf spring 8 located between the top plate 6 and the nut 10. During the compression process, the leaf spring 8 converts the kinetic energy of the vibration into elastic potential energy and stores it, thus achieving preliminary buffering and vibration isolation. In the air damping mechanism, the downward movement of the top plate 6 also drives the fixedly connected cylinder 11 and piston 12 to move downwards. Piston 12 slides downwards in the sealed cavity formed by the stud 9, thereby compressing the air between piston 12 and piston 13. The rapidly compressed air generates a huge reverse thrust on piston 12, while the high-pressure air pushes piston 13 downwards. During the compression and forced flow of the air, due to the viscosity of the air and the friction between molecules, most of the vibration kinetic energy is converted into heat energy and dissipated. The process generates a significant damping effect. Throughout the entire downward pressing process, the guide tube 5 fixed to the top of the pad 2 3 continuously guides and limits the movement of the main body 1, ensuring that the pad 1 2 and the top plate 6 can only move stably in the vertical direction, avoiding vibration reduction failure caused by lateral instability. When the external pressure or vibration weakens or disappears, the elastic potential energy stored in the compressed leaf spring 1 8 is released, generating an upward rebound force, pushing the top plate 6, pad 1 2, and main body 1 back to their initial positions. During the rebound process, the piston 1 1 2 moves upward, the air volume inside the stud 9 changes, and the piston 2 1 3 moves accordingly. The air flow also generates a damping effect, making the rebound process smooth and controllable, avoiding overshoot and secondary vibration. Through the synergistic effect of the elastic support provided by the leaf spring 1 8 and the air damper formed by the piston 1 1 2 and the piston 2 1 3, this utility model can not only effectively isolate vibration, but more importantly, it can quickly dissipate vibration energy, greatly weaken the vibration amplitude of the system, and effectively suppress the occurrence of resonance, thereby significantly improving the safety and stability of the building structure.

Claims

1. A vibration damping pad spring for building, comprising a main body (1), a first pad (2), a second pad (3), a top plate (6), a first leaf spring (8), a stud (9), a nut (10), a cylinder (11), a first piston (12) and a second piston (13), wherein the first pad (2) and the second pad (3) are disposed at the upper and lower ends of the main body (1), and the top plate (6) is fixedly connected to the bottom of the first pad (2); Its features are, The top of the second pad (3) is fixedly connected to the stud (9), and the second piston (13) is slidably connected inside the stud (9). The nut (10) is threadedly connected to the stud (9). The first leaf spring (8) is connected between the bottom of the top plate (6) and the top of the nut (10). The bottom of the top plate (6) is also fixedly connected to the cylinder (11). The bottom of the cylinder (11) is connected to the first piston (12). The first piston (12) slides coaxially inside the stud (9) and is located above the second piston (13). Damping is generated by pushing the second piston (13) to move by compressed air.

2. The vibration damping pad spring for buildings according to claim 1, characterized in that, It also includes an installation plate (4), which is fixedly connected to the top and bottom of the plurality of the main bodies (1) to integrate the plurality of the main bodies (1) into a whole device.

3. A vibration damping pad spring for building construction according to claim 1, characterized in that, The outer periphery of the top plate (6) is provided with a stepped portion, and the stepped portion of the top plate (6) is fixedly connected with a reinforcing rib (7) for enhancing the structure of the top plate (6).

4. A vibration damping pad spring for building construction according to claim 1, characterized in that, The second pad (3) has a reserved hole (18) for fixing the damping pad spring.

5. A vibration damping pad spring for building construction according to claim 1, characterized in that, The top of the second pad (3) is fixedly connected to a guide tube (5), which limits and guides the main body (1).

6. A vibration damping pad spring for building construction according to claim 5, characterized in that, The top of the second pad (3) is provided with a notch (14), and the guide tube (5) passes through the notch (14); a tenon plate (15) is rotatably connected to the guide tube (5), and the tenon plate (15) is engaged in a pre-set groove in the notch (14) to fix the guide tube (5).

7. A vibration damping pad spring for building construction according to claim 6, characterized in that, The tenon plate (15) is rotatably connected to the guide tube (5) via a pivot (17).

8. A vibration damping pad spring for building construction according to claim 7, characterized in that, A second leaf spring (16) is fixedly connected to the rotating shaft (17), and the second leaf spring (16) provides elastic force for the snap-fit ​​of the tenon plate (15).

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