Shock absorption damping device for bridge
By designing folding protective covers and rubber sleeves in the bridge shock absorption device, birds can avoid nesting and use the extrusion and elastic reset of the shock absorption mechanism to solve the problem of birds affecting bridge shock absorption, extending the device life and improving the device life The bridge's seismic resistance is achieved.
Patent Information
- Application Number
- CN202420827976.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing bridge shock absorption and damping device is affected by feces corrosion and deformation caused by bird nesting, which shortens the service life of the device and reduces the earthquake resistance of the bridge.
A shock-absorbing damping device including the first and second mounting plates, moving columns, fixing seats, shock absorbing mechanisms, rubber sleeves and folding protective covers are designed to avoid birds by fixing the folding protective cover and the use of rubber sleeves. Build nests and achieve buffering and shock absorption through extrusion and elastic reset of the shock absorber mechanism.
It extends the service life of the bridge shock absorber device, improves the earthquake resistance of the bridge, avoids birds affecting the shock absorber effect, and ensures the safety and stability of the bridge.
Smart Images
Figure CN222183047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge shock absorption, in particular to a shock absorption and damping device for bridges. Background Art
[0002] Bridges generally refer to structures erected across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern, rapidly developing transportation industry, bridges are also extended to buildings that are erected across mountain streams, poor geology, or to meet other transportation needs to make travel more convenient. As the infrastructure of road engineering, bridges are widely distributed, and various natural disasters or human factors can cause bridges to vibrate. These vibrations can cause damage to the bridges and affect the safety and stability of the bridges. As an important seismic technical measure, the seismic reduction and isolation technology of bridges can significantly improve the seismic resistance of bridge structures while solving the drawbacks of traditional seismic thinking and minimize the damage to bridges caused by earthquakes. Therefore, its application in bridge structure design is of great value.
[0003] The bridge shock-absorbing and damping devices in the prior art are usually some rubber shock-absorbing pads, shock-absorbing springs and damping rods arranged between the bridge deck and the piers. These components have a long service life under normal conditions of use. However, since these components are used in an exposed state in the external environment and space is reserved in advance for the deformation and expansion of these components, birds in the external environment will rest and nest in this space. The feces produced by the birds will have a corrosive effect on the bridge shock-absorbing and damping devices, resulting in a greatly reduced service life of the bridge shock-absorbing and damping devices. In addition, bird nesting will affect the expansion and contraction deformation of related components, thereby affecting the device's shock-absorbing effect on the bridge, and indirectly shortening the service life of the bridge. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a shock absorbing and damping device for a bridge.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A shock-absorbing and damping device for a bridge comprises a first mounting plate and a second mounting plate, wherein mounting holes are provided at four corner positions of the first mounting plate and the second mounting plate, a movable column and a fixed seat are respectively installed on the side where the first mounting plate and the second mounting plate are close to each other, a first shock-absorbing mechanism is arranged inside the fixed seat, a second shock-absorbing mechanism is arranged at four corner positions on the side where the first mounting plate and the second mounting plate are close to each other, and a protective mechanism for protecting the first shock-absorbing mechanism and the second shock-absorbing mechanism is arranged at the edge position of the side where the first mounting plate and the second mounting plate are close to each other.
[0007] Preferably, the first damping mechanism includes a cavity arranged inside the fixing seat, a first damping rod is installed at the center of the cavity, a movable plate is installed at the bottom end of the movable column in the cavity, and the bottom end of the movable plate abuts against the top end of the first damping rod.
[0008] Preferably, a first rubber sleeve is installed inside the cavity, the first damping rod is located inside the first rubber sleeve, a plurality of rubber plates are installed on the outer wall of the first rubber sleeve, and the plurality of rubber plates divide the cavity into a plurality of chambers.
[0009] Preferably, the cavities are located in a plurality of chambers each with an elastic rod installed therein, and the top ends of the elastic rods are in contact with the bottom ends of the movable plates.
[0010] Preferably, the second shock absorbing mechanism comprises a plurality of second damping rods mounted between the first mounting plate and the second mounting plate, and outer walls of the plurality of second damping rods are each sleeved with a spring.
[0011] Preferably, a plurality of second rubber sleeves are installed between the first mounting plate and the second mounting plate, and the plurality of second rubber sleeves are respectively sleeved on the plurality of spring surfaces.
[0012] Preferably, the protection mechanism comprises a folding protective cover mounted on the outer wall of one side close to the first mounting plate and the second mounting plate, a connecting plate is mounted on the close ends of the two folding protective covers, and ear seats are mounted on the four corners of the two connecting plates.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. In the utility model, after the device is installed as a whole at a position between the bridge body and the bridge pier, the folding protective cover arranged on the side close to the first mounting plate and the second mounting plate can be pulled in sequence to move in the direction of approaching, and the two connecting plates can be connected and fixed by multiple bolts and nuts, so that the two unfolded folding protective covers can protect multiple components between the first mounting plate and the second mounting plate, thereby preventing birds in the external environment from resting and nesting in this space, affecting the overall shock-absorbing effect of the device on the bridge, and extending the service life of the bridge.
[0015] 2. In the utility model, by setting the first shock-absorbing mechanism and the second shock-absorbing mechanism, when the bridge body is subjected to a large pressure, the first mounting plate will be driven to move downward, and the movable column and the movable plate will be driven to squeeze the first damping rod, the first rubber sleeve, multiple rubber plates and multiple elastic rods inside the cavity respectively, so that the first damping rod, the first rubber sleeve, multiple rubber plates and multiple elastic rods can buffer and reduce the pressure during the process of downward contraction and deformation, thereby avoiding the situation where the bridge body and the piers are damaged due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural schematic diagram of a shock absorbing and damping device for a bridge proposed by the utility model;
[0017] Figure 2 It is a schematic diagram of the structure in which the first mounting plate and the second mounting plate are separated from the second damping mechanism in the utility model;
[0018] Figure 3 This is a structural cross-sectional view of the fixing seat in the utility model;
[0019] Figure 4 This is a structural cross-sectional view of the fixing seat in the utility model from another angle;
[0020] Figure 5 It is a structural cross-sectional view of the second rubber sleeve in the utility model.
[0021] In the figure: 1, first mounting plate; 2, second mounting plate; 3, mounting hole; 4, fixing seat; 5, second rubber sleeve; 6, folding protective cover; 7, connecting plate; 8, ear seat; 9, moving column; 10, moving plate; 11, cavity; 12, rubber plate; 13, elastic rod; 14, first rubber sleeve; 15, first damping rod; 16, second damping rod; 17, spring. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Reference Figure 1-Figure 5 A shock absorbing and damping device for a bridge comprises a first mounting plate 1 and a second mounting plate 2, wherein mounting holes 3 are provided at four corners of the first mounting plate 1 and the second mounting plate 2, a movable column 9 and a fixing seat 4 are respectively installed on the side where the first mounting plate 1 and the second mounting plate 2 are close to each other, a first shock absorbing mechanism is arranged inside the fixing seat 4, a second shock absorbing mechanism is arranged at four corners of the side where the first mounting plate 1 and the second mounting plate 2 are close to each other, and a protective mechanism for protecting the first shock absorbing mechanism and the second shock absorbing mechanism is arranged at the edge position of the side where the first mounting plate 1 and the second mounting plate 2 are close to each other.
[0024] As a technical optimization solution of the utility model, the first damping mechanism includes a cavity 11 arranged inside the fixed seat 4, a first damping rod 15 is installed at the center of the cavity 11, the bottom end of the moving column 9 is located in the cavity 11 and a moving plate 10 is installed, and the bottom end of the moving plate 10 is in contact with the top end of the first damping rod 15. When the first mounting plate 3 is subjected to force from above, the moving column 9 and the moving plate 10 are driven to move downward inside the cavity 11, so that the first damping rod 15 is forced to contract downward, and the pressure on the first mounting plate 3 is buffered and damped.
[0025] As a technical optimization solution of the utility model, a first rubber sleeve 14 is installed inside the cavity 11, a first damping rod 15 is located inside the first rubber sleeve 14, and a plurality of rubber plates 12 are installed on the outer wall of the first rubber sleeve 14, and the plurality of rubber plates 12 divide the cavity 11 into a plurality of chambers. When the moving plate 10 moves downward inside the cavity 11, it also compresses the first rubber sleeve 14 and the plurality of rubber plates 12, so that the first rubber sleeve 14 and the plurality of rubber plates 12 can also buffer and reduce the pressure on the first mounting plate 3.
[0026] As a technical optimization solution of the utility model, the cavity 11 is located in a plurality of chambers and elastic rods 13 are installed, and the top ends of the elastic rods 13 are all in contact with the bottom end of the movable plate 10. The elastic rods 13 are metal rods with elasticity in the prior art, and the downward movement of the movable plate 10 will also squeeze the plurality of elastic rods 13, so that the plurality of elastic rods 13 are bent by force, and in the process of the bending of the plurality of elastic rods 13, the pressure on the first mounting plate 3 can be further buffered and shock-absorbed.
[0027] As a technical optimization solution of the utility model, the second shock absorbing mechanism includes a plurality of second damping rods 16 installed between the first mounting plate 1 and the second mounting plate 2, and the outer walls of the plurality of second damping rods 16 are all provided with springs 17. In the process of the first mounting plate 1 moving downward, the plurality of second damping rods 16 are also squeezed, so that the plurality of second damping rods 16 shrink downward, driving the plurality of springs 17 to be in a compressed state together, so that the pressure on the first mounting plate 1 can continue to be buffered and damped, thereby improving the overall buffering and damping effect.
[0028] As a technical optimization solution of the utility model, a plurality of second rubber sleeves 5 are installed between the first mounting plate 1 and the second mounting plate 2, and the plurality of second rubber sleeves 5 are respectively sleeved on the surfaces of the plurality of springs 17. The second rubber sleeves 5 can protect the springs 17 and the second damping rod 16, and prevent the springs 17 and the second damping rod 16 from being exposed to the external environment for a long time, resulting in the problem of reducing the service life of the springs 17 and the second damping rod 16.
[0029] As a technical optimization scheme of the utility model, the protective mechanism includes a folding protective cover 6 installed on the outer wall of the first mounting plate 1 and the second mounting plate 2 on one side close to each other, and a connecting plate 7 is installed on the close ends of the two folding protective covers 6, and ear seats 8 are installed on the four corners of the two connecting plates 7. The first mounting plate 1 and the second mounting plate 2 are connected to the bridge body and the pier of the bridge through multiple bolts or other fixings through the mounting holes 3 at the corners. After the installation is completed, the two connecting plates 7 are pulled in the direction of approaching each other, and one end of the multiple bolts is passed through the circular holes inside the two opposite ear seats 8 respectively, and then the two connecting plates 7 are connected and fixed by using the corresponding nuts and bolts, so that the two unfolded folding protective covers 6 can protect multiple components between the first mounting plate 1 and the second mounting plate 2, which can extend the service life of multiple components on the one hand, and prevent birds in the external environment from resting and nesting in the space between the first mounting plate 1 and the second mounting plate 2 on the other hand, which affects the use of the entire shock absorbing and damping device.
[0030] In the utility model, the first mounting plate 1 and the second mounting plate 2 are respectively installed at the position between the bottom of the bridge body and the top of the pier by multiple bolts or other fixing parts, and then the two connecting plates 7 are pulled toward each other in sequence, and the two connecting plates 7 are connected and fixed by multiple bolts and nuts, so that the two unfolded folding protective covers 6 can protect multiple components between the first mounting plate 1 and the second mounting plate 2.
[0031] When the bridge body is subjected to greater pressure above, the first mounting plate 1 will be driven to move downward, driving the movable column 9 and the movable plate 10 to move downward inside the cavity 11, so that the movable plate 10 will squeeze the first damping rod 15, the first rubber sleeve 14, the multiple rubber plates 12 and the multiple elastic rods 13 inside the cavity 11 respectively, so that the first damping rod 15, the first rubber sleeve 14, the multiple rubber plates 12 and the multiple elastic rods 13 can buffer and reduce the pressure during the process of downward contraction and deformation, thereby avoiding the situation where the bridge body and the piers are damaged due to excessive force.
[0032] During the downward movement of the first mounting plate 1, the multiple second damping rods 16 will also be squeezed, causing the multiple second damping rods 16 to shrink downward, driving the multiple springs 17 to be compressed together, thereby further buffering and shock-absorbing the pressure on the first mounting plate 1 and the bridge body above it, thereby improving the overall buffering and shock-absorbing effect of the device on the bridge body and the piers; and after the pressure above the bridge body disappears, the multiple springs 17, the multiple second damping rods 16, the multiple elastic rods 13 and other components are elastically reset without being affected by pressure, thereby driving the bridge body to reset, facilitating the safe passage of vehicles above the bridge body.
[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A vibration-absorbing and damping device for a bridge, comprising a first mounting plate (1) and a second mounting plate (2), characterized in that: The four corners of the first mounting plate (1) and the second mounting plate (2) are each provided with a mounting hole (3); a movable column (9) and a fixed seat (4) are respectively installed on the side where the first mounting plate (1) and the second mounting plate (2) are close to each other; a first shock absorbing mechanism is arranged inside the fixed seat (4); a second shock absorbing mechanism is arranged at the four corners of the side where the first mounting plate (1) and the second mounting plate (2) are close to each other; and a protective mechanism for protecting the first shock absorbing mechanism and the second shock absorbing mechanism is arranged at the edge of the side where the first mounting plate (1) and the second mounting plate (2) are close to each other.
2. A shock absorbing and damping device for a bridge according to claim 1, characterized in that: The first shock absorbing mechanism comprises a cavity (11) arranged inside the fixed seat (4), a first damping rod (15) is installed at a central position of the cavity (11), a movable plate (10) is installed at the bottom end of the movable column (9) located in the cavity (11), and the bottom end of the movable plate (10) is in contact with the top end of the first damping rod (15).
3. A vibration-absorbing and damping device for a bridge according to claim 2, characterized in that: A first rubber sleeve (14) is installed inside the cavity (11), a first damping rod (15) is located inside the first rubber sleeve (14), a plurality of rubber plates (12) are installed on the outer wall of the first rubber sleeve (14), and the plurality of rubber plates (12) divide the cavity (11) into a plurality of chambers.
4. A vibration-absorbing and damping device for a bridge according to claim 3, characterized in that: The cavities (11) are located in a plurality of chambers each of which is provided with an elastic rod (13), and the top ends of the elastic rods (13) are in contact with the bottom ends of the movable plates (10).
5. The vibration-absorbing and damping device for a bridge according to claim 1, characterized in that: The second shock absorbing mechanism comprises a plurality of second damping rods (16) mounted between the first mounting plate (1) and the second mounting plate (2), and the outer walls of the plurality of second damping rods (16) are all provided with springs (17).
6. A vibration-absorbing and damping device for a bridge according to claim 5, characterized in that: A plurality of second rubber sleeves (5) are installed between the first mounting plate (1) and the second mounting plate (2), and the plurality of second rubber sleeves (5) are respectively sleeved on the surfaces of the plurality of springs (17).
7. The vibration-absorbing and damping device for a bridge according to claim 1, characterized in that: The protective mechanism comprises a folding protective cover (6) mounted on an outer wall of a side close to the first mounting plate (1) and the second mounting plate (2), a connecting plate (7) being mounted on the ends of the two folding protective covers (6) close to each other, and ear seats (8) being mounted on the four corners of the two connecting plates (7).