Anti-seismic buffering and damping structure for underground facility equipment

Abstract

The utility model relates to the technical field of underground equipment damping, and discloses an underground facility equipment anti-seismic buffering and damping structure which comprises a first fixing bottom plate and a second fixing bottom plate, the first fixing bottom plate and the second fixing bottom plate are both internally and fixedly connected with connecting bases, and the lower surfaces of the connecting bases are fixedly connected with dustproof piston rods. A first fixing bottom plate is slidably connected to the bottom of the dustproof piston rod, a buffering ground mat is fixedly connected to the outer wall of the first fixing bottom plate, a damping sleeve is fixedly connected into the buffering ground mat, the outer wall of the dustproof piston rod is sleeved with a spring, and a damping assembly is arranged in the damping sleeve and comprises a retarding head. According to the damping device, through the damping assembly composed of the dustproof piston rod, the buffering head, the sealing lantern ring, the damping sleeve and other components, vibration energy is effectively absorbed and consumed, the anti-seismic, buffering and damping effects on underground facilities and equipment are remarkably improved, and the equipment is protected against vibration damage.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction technology for underground equipment, and in particular to a seismic buffer and vibration reduction structure for underground facilities and equipment. Background Technology

[0002] With the rapid development of urban construction, underground facilities and equipment, such as subway tunnels, underground utility tunnels, and underground substations, are playing an increasingly important role in urban infrastructure. These facilities and equipment operate in complex underground environments, enduring stresses from geological changes and external impacts such as earthquakes and construction vibrations. Damage caused by vibrations can severely disrupt normal urban operations and even lead to safety accidents. Therefore, developing high-performance seismic-resistant and shock-absorbing structures to ensure the safe and stable operation of underground facilities and equipment has become a critical technical challenge that urgently needs to be addressed.

[0003] Existing seismic damping technologies for underground facilities and equipment mostly employ single spring or rubber damping structures. Spring damping structures primarily rely on the elastic deformation of springs to absorb vibration energy; however, under high-frequency vibrations, springs are prone to fatigue failure, and the rebound process is difficult to control effectively, potentially leading to secondary vibrations in the equipment. Rubber damping structures buffer vibrations through the flexibility of rubber materials; however, rubber materials are susceptible to aging and deformation in the humid and corrosive underground environment over long periods, resulting in a significant decrease in damping performance over time. Furthermore, some technologies supplement damping by adding simple dampers, but the damping effect of dampers is limited and cannot achieve efficient absorption and conversion of vibration energy.

[0004] However, the aforementioned existing technologies generally suffer from insufficient vibration energy absorption and poor sustainability of damping effects when dealing with complex vibration environments. Under earthquakes or strong external impacts, single springs, rubber damping structures, or simple dampers are difficult to work in concert, and cannot effectively dissipate and buffer vibration energy through multiple media and structures. Furthermore, residual vibration is easily generated during the rebound process, resulting in underground facilities and equipment still facing a significant risk of vibration damage. This makes it difficult to meet the high performance and high stability requirements of underground facilities and equipment for seismic buffering and damping. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an earthquake-resistant buffer and vibration reduction structure for underground facilities and equipment, aiming to improve the problems of insufficient vibration energy absorption and poor continuous vibration reduction effect that exist in existing technologies when dealing with complex vibration environments.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an earthquake-resistant buffer and vibration-damping structure for underground facilities and equipment, comprising a fixed base plate one and a fixed base plate two, wherein a connecting seat is fixedly connected inside both the fixed base plate one and the fixed base plate two, a dustproof piston rod is fixedly connected to the lower surface of the connecting seat, the bottom of the dustproof piston rod is slidably connected to the fixed base plate one, a buffer mat is fixedly connected to the outer wall of the fixed base plate one, a vibration-damping sleeve is fixedly connected inside the buffer mat, a spring is sleeved on the outer wall of the dustproof piston rod, and a vibration-damping component is provided inside the vibration-damping sleeve;

[0007] The shock absorption assembly includes a damping head, the outer wall of which is fixedly connected to one end of the dustproof piston rod, a sealing ring fixedly connected to the outer wall of the damping head, an oil chamber in the middle of the shock absorption sleeve, mixing chambers on both sides inside the shock absorption sleeve, and a valve body fixedly connected to the bottom of the shock absorption sleeve.

[0008] Furthermore, an extension column is fixedly connected to one side of the outer wall of the fixed base plate, a fixed rod is fixedly connected inside the extension column, a spring plate is provided on the outer wall of the fixed rod, a fixed block is fixedly connected to the outer wall of the spring plate, a snap-fit ​​assembly is provided on one side of the outer wall of the fixed block, the snap-fit ​​assembly is used to fix the fixed base plate, and a linkage assembly is provided on the other side of the outer wall of the fixed block, the linkage assembly is used to drive the two fixed blocks to move synchronously.

[0009] Furthermore, the snap-fit ​​assembly includes a fixed shaft, one end of which is fixedly connected to one side of the outer wall of the fixed block. The second fixed base plate has multiple snap-fit ​​holes inside, and the outer wall of the fixed shaft is slidably connected to the inside of the extension column.

[0010] Furthermore, the linkage assembly includes a rack, one end of which is fixedly connected to the other side of the outer wall of the fixed block, and a gear is rotatably connected inside the extension column, the gear meshing with the rack.

[0011] Furthermore, the outer wall of the sealing collar is slidably connected inside the shock-absorbing sleeve, and the sealing collar is used to prevent oil leakage. The outer wall of the fixed shaft is slidably connected inside the second fixed base plate, and the fixed shaft is used to fix the extended column after movement.

[0012] Furthermore, the outer wall of the extension column is slidably connected inside the second fixed base plate, and the outer wall of the fixed shaft is slidably connected inside the card hole.

[0013] Furthermore, the outer walls of both the first fixed base plate and the second fixed base plate are slidably connected to the outer wall of the buffer mat.

[0014] Furthermore, the outer wall of the extension column is slidably connected inside the first fixed base plate and the second fixed base plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the shock-absorbing assembly, composed of components such as a dustproof piston rod, a damping head, a sealing ring, and a shock-absorbing sleeve, can cause the dustproof piston rod to drive the damping head and the sealing ring to slide within the shock-absorbing sleeve during an earthquake or external impact. This squeezes the oil in the oil chamber and delivers it to the mixing chamber through the valve body, compressing the gas in the mixing chamber. At the same time, the spring contracts, and when the spring rebounds, the circulating flow of the oil prevents the structure from rebounding rapidly. Through the synergistic effect of the oil and gas and the elastic deformation of the spring, vibration energy is effectively absorbed and consumed, significantly improving the seismic buffering and shock absorption effect on underground facilities and equipment, and protecting the equipment from vibration damage.

[0017] 2. In this utility model, by pressing the fixed shaft and sliding it in the locking hole, the fixed block, rack and gear move in coordination, realizing the synchronous movement of the fixed shafts on both sides, which in turn causes the spring plate to retract and push the fixed shaft into the pre-set locking hole of the fixed base plate to complete the fixation. This not only realizes the flexible adjustment of the structural length, which can adapt to the installation needs of underground facilities and equipment of different sizes, but also enhances the stability of the structure through locking and fixing, ensuring reliable fixation of the equipment under different working conditions. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an earthquake-resistant buffer and vibration-damping structure for underground facilities and equipment proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure below the fixed base plate of the seismic buffer and damping structure for underground facilities and equipment proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of an oil tank structure for an underground facility equipment seismic buffer and vibration reduction structure proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the shock-absorbing sleeve of an underground facility and equipment seismic buffer and damping structure proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the fixed base plate of the seismic buffer and damping structure for underground facilities and equipment proposed in this utility model.

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Fixed base plate one; 2. Shock-absorbing sleeve; 3. Buffer mat; 4. Fixed base plate two; 5. Fixed rod; 6. Spring plate; 7. Fixed block; 8. Fixed shaft; 9. Gear one; 10. Rack one; 11. Extension column; 12. Spring; 13. Connecting seat; 14. Slowing head; 15. Dustproof piston rod; 16. Sealing ring; 17. Oil tank; 18. Mixing tank; 19. Valve body; 20. Clip hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-4 This utility model provides an embodiment of an earthquake-resistant and shock-absorbing structure for underground facilities and equipment, comprising a fixed base plate 1 and a fixed base plate 4. A connecting seat 13 is fixedly connected inside both the fixed base plate 1 and the fixed base plate 4, serving to connect the fixed base plate to the dustproof piston rod 15. During vibration, the displacement of the fixed base plate is transmitted to the dustproof piston rod 15, ensuring effective force transmission. The dustproof piston rod 15 is fixedly connected to the lower surface of the connecting seat 13, moving with the displacement of the fixed base plate during vibration, causing the damping head 14 and the sealing ring 16 to slide within the shock-absorbing sleeve 2. The bottom of the dustproof piston rod 15 is slidably connected to the fixed base plate 1. A buffer mat 3 is fixedly connected to the outer wall of the fixed base plate 1, serving as an initial... The cushioning and protection of the shock-absorbing sleeve 2 reduces the direct impact of external factors on the shock-absorbing sleeve 2, while providing a certain degree of flexible support for the shock-absorbing structure. The shock-absorbing sleeve 2 is fixedly connected inside the cushioning mat 3, and the shock-absorbing components are set inside. It is the core cavity for realizing the shock-absorbing function, providing space for the storage and flow of oil and gas, as well as slowing down the sliding of the head 14 and sealing ring 16. The internal structure design realizes the absorption and conversion of vibration energy. The dustproof piston rod 15 is fitted with a spring 12 on its outer wall. When vibrating, it contracts under force, converting the vibration energy into elastic potential energy for storage. After the vibration weakens, it rebounds, releasing energy to drive the fixed base plate 4 to reset. At the same time, the rapid rebound is suppressed by the synergistic effect of the oil, playing a role in cushioning and shock absorption. The shock-absorbing sleeve 2 is equipped with shock-absorbing components inside.

[0028] The damping assembly includes a damping head 14, the outer wall of which is fixedly connected to one end of a dustproof piston rod 15. A sealing collar 16 is fixedly connected to the outer wall of the damping head 14, and the outer wall is slidably connected to the inside of the damping sleeve 2, which serves to seal the damping sleeve 2, prevent oil leakage, ensure the stability of the working environment of the oil and gas inside the damping assembly, and ensure the normal operation of the damping function. An oil chamber 17 is opened in the middle of the damping sleeve 2. When vibrating, the oil is squeezed and flows through the valve body 19 to the mixing chamber 18. It is an important medium for energy transfer and conversion during the damping process. The flow of oil achieves the absorption and dispersion of vibration energy. Mixing chambers 18 are opened on both sides inside the damping sleeve 2 to receive the oil squeezed from the oil chamber 17, compress the internal gas, and convert the pressure energy of the oil into the compressive energy of the gas, further consuming the vibration energy. It works in conjunction with the oil chamber 17 to achieve the damping effect. A valve body 19 is fixedly connected to the bottom of the damping sleeve 2.

[0029] Specifically, when using the seismic buffer and damping structure for underground facilities and equipment, the equipment is first placed between the fixed base plate 1 and the fixed base plate 4. Under vibration or external impact, the displacement of the fixed base plate 4 drives the connecting seat 13 and the dustproof piston rod 15 to move, causing the damping head 14 and the sealing ring 16 to slide in the damping sleeve 2, squeezing the oil in the oil tank 17 to the mixing tank 18, compressing the gas, and the spring 12 to contract and store energy. After the vibration is weakened, the spring 12 rebounds, and the oil backflow inhibits the rapid rebound. The damping is achieved through the coordinated action of the oil, gas, and spring 12.

[0030] Reference Figure 1 , Figure 5 and Figure 6An extension column 11 is fixedly connected to one side of the outer wall of the fixed base plate 1, providing installation space and a sliding track for the length adjustment structure. It provides support and guidance during length adjustment. A fixed rod 5 is fixedly connected inside the extension column 11, providing an installation base for the spring plate 6. During length adjustment, the spring plate 6 deforms around the fixed rod 5, ensuring the stability and directionality of the deformation under force. The spring plate 6 is located on the outer wall of the fixed rod 5. When the fixed shaft 8 moves, it generates thrust through contraction and deformation, pushing the fixed shaft 8 to slide on the inner wall of the fixed base plate 4. This is an important elastic component for achieving length adjustment and locking the fixed shaft 8. A fixed block 7 is fixedly connected to the outer wall of the spring plate 6. A locking assembly is located on one side of the outer wall of the fixed block 7, used to fix the fixed base plate 1. A linkage assembly is located on the other side of the outer wall of the fixed block 7, used to drive the two fixed blocks 7 to move synchronously. The locking assembly includes a fixed shaft 8, one end of which is fixedly connected to one side of the outer wall of the fixed block 7. Multiple locking mechanisms are provided inside the fixed base plate 4. Hole 20, the outer wall of the fixed shaft 8 is slidably connected to the inside of the extension column 11. The linkage component includes rack 10, one end of which is fixedly connected to the other side of the outer wall of the fixed block 7. Gear 9 is rotatably connected inside the extension column 11. Gear 9 meshes with rack 10. During length adjustment, the movement of rack 10 drives gear 9 to rotate, thereby driving the other rack 10 and fixed shaft 8 to move synchronously, realizing synchronous adjustment of the fixed shafts 8 on both sides, ensuring the balance and stability of the structural adjustment, and sealing sleeve. The outer wall of the ring 16 is slidably connected to the inside of the shock-absorbing sleeve 2. The sealing ring 16 is used to prevent oil leakage. The outer wall of the fixed shaft 8 is slidably connected to the inside of the second fixed base plate 4. The fixed shaft 8 is used to fix the extended column 11 after it is moved. The outer wall of the extended column 11 is slidably connected to the inside of the second fixed base plate 4. The outer wall of the fixed shaft 8 is slidably connected to the inside of the clip hole 20. The outer walls of the first fixed base plate 1 and the second fixed base plate 4 are both slidably connected to the outer wall of the buffer mat 3. The outer wall of the extended column 11 is slidably connected to the inside of the first fixed base plate 1 and the second fixed base plate 4.

[0031] Specifically, during structural installation and length adjustment, pressing the fixed shaft 8 causes it to slide within the locking hole 20, which in turn drives the fixed block 7 and rack 10. The rack 10 drives the gear 9 meshing with it to rotate, which in turn drives the rack 10 on the other side and the fixed block 7, achieving synchronous sliding of the fixed shafts 8 on both sides. Then, the spring plate 6 retracts, pushing the fixed shaft 8 to the preset locking hole 20 for fixation. Adjusting the distance between the two fixed base plates to adapt to the equipment ensures structural stability.

[0032] Working principle: When an underground facility or equipment seismic buffer and damping structure is required, the equipment is first placed on a fixed base plate 1 and a fixed base plate 4. During use, the dustproof piston rod 15 drives the damping head 14 and the sealing collar 16 to slide inside the damping sleeve 2, thereby squeezing the oil inside the oil tank 17 and sending it to the mixing chamber 18 through the valve body 19. This compresses the gas inside the mixing chamber 18, and at the same time, the spring 12 contracts. Meanwhile, a small portion of the oil is sent to the top of the oil tank 17 through the damping head 14. Then, the spring 12 rebounds and drives the fixed base plate 4 to move upward, thereby pulling the damping head 14 and the sealing collar 16 to slide inside the damping sleeve 2 through the dustproof piston rod 15. During this process, a small portion of the oil is again sent to the inside of the oil tank 17 through the damping head 14, thus avoiding rapid rebound and achieving shock absorption.

[0033] Furthermore, pressing the fixed shaft 8 and sliding it inside the locking hole 20 causes the rack 10 to move via the fixed block 7, causing the gear 9 to rotate with the movement of the rack 10. This, in turn, causes the fixed shaft 8 on the other side to move synchronously. The movement of the two fixed shafts 8 then causes the spring plate 6 to contract, thereby pushing the fixed shaft 8 to slide on the inner wall of the fixed base plate 2 4. This pushes the fixed shaft 8 into the pre-set locking hole 20 inside the fixed base plate 2 4 for fixing, achieving the effect of length adjustment. Then, the device is installed between the fixed base plate 1 and the fixed base plate 2 4.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seismic buffer and damping structure for underground facilities and equipment, comprising a fixed base plate one (1) and a fixed base plate two (4), characterized in that: Both the first fixed base plate (1) and the second fixed base plate (4) are fixedly connected to a connecting seat (13). A dustproof piston rod (15) is fixedly connected to the lower surface of the connecting seat (13). The bottom of the dustproof piston rod (15) is slidably connected to the first fixed base plate (1). A buffer mat (3) is fixedly connected to the outer wall of the first fixed base plate (1). A shock-absorbing sleeve (2) is fixedly connected inside the buffer mat (3). A spring (12) is sleeved on the outer wall of the dustproof piston rod (15). A shock-absorbing component is provided inside the shock-absorbing sleeve (2). The shock-absorbing assembly includes a damping head (14), the outer wall of which is fixedly connected to one end of the dustproof piston rod (15), a sealing collar (16) is fixedly connected to the outer wall of the damping head (14), an oil chamber (17) is provided in the middle of the shock-absorbing sleeve (2), a mixing chamber (18) is provided on both sides inside the shock-absorbing sleeve (2), and a valve body (19) is fixedly connected to the bottom of the shock-absorbing sleeve (2).

2. The seismic buffer and damping structure for underground facilities and equipment according to claim 1, characterized in that: An extension column (11) is fixedly connected to one side of the outer wall of the fixed base plate (1). A fixing rod (5) is fixedly connected inside the extension column (11). A spring plate (6) is provided on the outer wall of the fixing rod (5). A fixing block (7) is fixedly connected to the outer wall of the spring plate (6). A snap-fit ​​assembly is provided on one side of the outer wall of the fixing block (7). The snap-fit ​​assembly is used to fix the fixed base plate (1). A linkage assembly is provided on the other side of the outer wall of the fixing block (7). The linkage assembly is used to drive the two fixing blocks (7) to move synchronously.

3. The seismic buffer and damping structure for underground facilities and equipment according to claim 2, characterized in that: The snap-fit ​​assembly includes a fixed shaft (8), one end of which is fixedly connected to one side of the outer wall of the fixed block (7). The second fixed base plate (4) has multiple snap holes (20) inside, and the outer wall of the fixed shaft (8) is slidably connected to the inside of the extension column (11).

4. The seismic buffer and damping structure for underground facilities and equipment according to claim 3, characterized in that: The linkage assembly includes a rack (10), one end of which is fixedly connected to the other side of the outer wall of the fixed block (7), and a gear (9) is rotatably connected inside the extension column (11), which meshes with the rack (10).

5. The seismic buffer and damping structure for underground facilities and equipment according to claim 4, characterized in that: The outer wall of the sealing ring (16) is slidably connected to the inside of the shock-absorbing sleeve (2). The sealing ring (16) is used to prevent oil leakage. The outer wall of the fixed shaft (8) is slidably connected to the inside of the fixed base plate (4). The fixed shaft (8) is used to fix the extended column (11) after it is moved.

6. The seismic buffer and damping structure for underground facilities and equipment according to claim 3, characterized in that: The outer wall of the extension column (11) is slidably connected to the inside of the fixed base plate (4), and the outer wall of the fixed shaft (8) is slidably connected to the inside of the card hole (20).

7. The seismic buffer and damping structure for underground facilities and equipment according to claim 1, characterized in that: The outer walls of both the first fixed base plate (1) and the second fixed base plate (4) are slidably connected to the outer wall of the buffer mat (3).

8. The seismic buffer and damping structure for underground facilities and equipment according to claim 3, characterized in that: The outer wall of the extension column (11) is slidably connected inside the fixed base plate one (1) and the fixed base plate two (4).

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