A viscous damping device based on efficient heat dissipation

Abstract

The application provides a viscous damping device based on efficient heat dissipation and belongs to the field of building anti-seismic equipment. The device comprises a viscous damping assembly, an upper node plate and a lower node plate. The viscous damping assembly comprises a cylinder body, a piston rod, two bushings and a piston. The upper node plate is hingedly connected to one end of the piston rod outside the cylinder body. The top of the upper node plate is fixedly provided with an upper mounting plate. The end of the cylinder body away from the upper node plate is fixedly provided with a connecting body. The lower node plate is hingedly connected to the end of the connecting body away from the cylinder body. A plurality of heat-conducting rods arranged in a ring array are penetrated through and slidably arranged on the piston. A plurality of natural graphite sheets are fixedly arranged on the outer wall of the heat-conducting rods and close to both ends. The viscous damping device based on efficient heat dissipation has the advantages that the cylinder body has a high-efficiency passive heat dissipation link, active one-way auxiliary heat dissipation can be realized, the heat dissipation fins have a convenient dismounting and maintenance structure, and the extension amplitude of the piston rod can be accurately recorded.

Description

Technical Field

[0001] This invention relates to the field of seismic equipment technology for buildings, and in particular to a viscous damping device based on efficient heat dissipation. Background Technology

[0002] Viscous damping devices, as core earthquake and wind-resistant devices in the field of civil engineering, play a crucial role in energy dissipation in structures such as buildings and bridges. Their working principle is as follows: When a building undergoes inter-story deformation due to earthquakes or wind vibrations, the piston rod pushes the piston to move within the cylinder. The piston compresses the viscous fluid (mostly dimethyl silicone oil) filling the cylinder, forcing it to pass at high speed through the orifices or gaps in the piston head. The fluid generates significant viscous resistance during this high-speed shear flow, hindering the piston's movement. Ultimately, the mechanical energy of the structural vibration is converted into heat energy, which is dissipated into the air through the cylinder surface, thereby reducing the structural vibration response and protecting the safety of the main structure.

[0003] Existing viscous damping devices face the challenge of heat accumulation. From an internal heat transfer perspective, the thermal conductivity of commonly used dimethyl silicone oil is only 0.1-0.2 W / mK, while the thermal conductivity of steel commonly used in cylinders is approximately 45-50 W / mK—a difference of 225-500 times. The large amount of heat generated by the piston's shear friction with the fluid is difficult to transfer quickly from the silicone oil to the cylinder's inner wall. From an external heat dissipation perspective, the thermal conductivity of air is only about 0.026 W / mK, and existing devices mostly rely on the cylinder's own metal surface for natural heat dissipation, resulting in extremely low heat exchange efficiency. This problem of heat "not being able to transfer internally or dissipate externally" leads to a continuous increase in cylinder temperature, causing a significant decrease in the viscosity of the dimethyl silicone oil. This directly weakens the damping device's energy dissipation capacity. Furthermore, prolonged high temperatures accelerate fluid aging and cylinder component wear, shortening the damping device's lifespan and posing potential structural safety hazards.

[0004] Therefore, it is necessary to provide a viscous damping device based on efficient heat dissipation to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this invention is to provide a viscous damping device based on efficient heat dissipation, which has an efficient passive heat dissipation link, can realize active unidirectional auxiliary heat dissipation, has a structure for easy disassembly and maintenance of heat dissipation fins, and can accurately record the extension and retraction amplitude of the piston rod.

[0006] To solve the above-mentioned technical problems, the present invention provides a viscous damping device based on high-efficiency heat dissipation, comprising a viscous damping assembly, an upper node plate, and a lower node plate. The viscous damping assembly includes a cylinder, a piston rod, two bushings, and a piston. Both bushings are fixedly installed in the cylinder. The piston rod passes through and is slidably and sealingly installed on the two bushings. The piston is fixedly sleeved on the piston rod and located between the two bushings. The upper node plate is hinged to the end of the piston rod outside the cylinder. An upper mounting plate is fixedly installed on the top of the upper node plate. A connecting body is fixedly installed at the end of the cylinder away from the upper node plate. The lower node plate is hinged to the end of the connecting body away from the cylinder. Multiple heat-conducting rods arranged in a ring array are passed through and slidably installed on the piston. The two ends of the heat-conducting rods are fixedly connected to the two bushings respectively. Multiple natural graphite sheets are fixedly installed on the outer wall of the heat-conducting rods near both ends. The ends of the multiple natural graphite sheets away from the piston rod are fixedly connected to the inner wall of the cylinder. Multiple heat dissipation fins are also fixedly installed on the outer wall of the cylinder.

[0007] Furthermore, a rotating sleeve is rotatably mounted on the outer wall of the cylinder, and multiple fan blades distributed in a rotationally symmetrical manner are fixedly installed on the outer wall of the rotating sleeve. A power introduction mechanism for driving the rotating sleeve to rotate is also installed on the outer wall of the cylinder.

[0008] Preferably, the power introduction mechanism includes a power connecting rod, a fixed seat, a rack, a rotating rod, a second bevel gear, a spur gear, and a C-shaped limiting sleeve. The fixed seat is fixedly installed on the outer wall of the cylinder body, and the C-shaped limiting sleeve is fixedly installed on the fixed seat. The power connecting rod passes through and slides inside the C-shaped limiting sleeve. The end of the power connecting rod away from the cylinder body is fixedly connected to the piston rod. The rack is fixedly installed on the outer wall of the power connecting rod near the fixed seat. The rotating rod is rotatably installed on the fixed seat. The spur gear is sleeved on the rotating rod and meshes with the rack. The second bevel gear is fixedly installed at the bottom end of the rotating rod. A first bevel gear is fixedly sleeved on the outer wall of the rotating sleeve, and the first bevel gear meshes with the second bevel gear.

[0009] Preferably, the spur gear is rotatably sleeved on the rotating rod, a ratchet is fixedly sleeved on the top of the rotating rod, two pawls are rotatably mounted on the top of the spur gear, the ends of the two pawls near the rotating rod are located in the ratchet grooves on the corresponding ratchets, two fixing plates are fixedly mounted on the top of the spur gear, and a first spring is fixedly mounted on the outer wall of the two fixing plates near the rotating rod, the ends of the two first springs near the rotating rod are fixedly connected to the corresponding pawls.

[0010] Preferably, the heat-conducting rod includes a middle section and two end sections. The cross-section of the middle section is shaped like a plum blossom, and the cross-section of the two end sections is cylindrical. The two end sections are integrally formed with the middle section. The piston has a sliding hole adapted to the middle section. The middle section passes through the sliding hole and is slidably connected to the inside of the sliding hole.

[0011] Preferably, a plurality of mounting strips are welded to the outer wall of the cylinder, and slots are formed in the mounting strips. The bottom of the heat dissipation fins is integrally formed with an insert that is adapted to the slot. The insert is located in the slot. Thermally conductive silicone is filled between the bottom of the insert and the bottom inner wall of the slot. A circular insertion hole is formed on the insert. A locking mechanism is provided on the mounting strip. The locking mechanism is used to cooperate with the circular insertion hole to lock the insert.

[0012] Preferably, the locking mechanism includes a pin, an operating plate, and a second spring. The pin is slidably mounted on one side of the outer wall of the mounting strip, with one end of the pin extending into the circular insertion hole. The operating plate is fixedly mounted on the end of the pin away from the circular insertion hole. The second spring is sleeved on the pin, with one end of the second spring fixedly connected to the mounting strip and the other end fixedly connected to the operating plate.

[0013] Furthermore, a strip-shaped groove is provided at one end of the power connecting rod near the cylinder body, a marking strip is installed in the strip-shaped groove, a central circular groove is provided at the center position of the outer wall of the marking strip away from the rotating rod, and a cone head is threaded onto the C-shaped limiting sleeve, the tip of the cone head is located in the central circular groove.

[0014] Furthermore, a hand plate located inside the strip groove is fixedly installed at one end of the marking strip near the cylinder body, and the end of the hand plate away from the marking strip extends outside the strip groove and has a circular hook hole.

[0015] Furthermore, a circular slot is provided on the outer wall of the hand plate away from the rotating rod, a U-shaped frame is fixedly installed on the power connecting rod, a clamping screw is threaded through and installed on the U-shaped frame, a limiting circular block is rotatably sleeved on the end of the clamping screw near the hand plate, and the end of the limiting circular block away from the clamping screw extends into the circular slot.

[0016] Compared with related technologies, the viscous damping device based on high-efficiency heat dissipation provided by the present invention has the following beneficial effects:

[0017] I. By using heat-conducting rods, natural graphite sheets, and heat dissipation fins, a highly efficient passive heat dissipation system is constructed. The heat-conducting rods made of copper, combined with a plum blossom-shaped structure, expand the contact area with the viscous fluid and piston sliding holes, enabling rapid absorption of frictional heat. The natural graphite sheets, with their high thermal conductivity, efficiently conduct heat to the outer wall of the cylinder. The heat dissipation fins accelerate heat dissipation by increasing the air contact area, effectively solving the problem of heat accumulation inside the viscous damping device and preventing the performance degradation of the viscous fluid caused by high temperatures.

[0018] Second, through the design of components such as the power introduction mechanism, rotating sleeve, fan blades, and ratchet, the piston rod extends and retracts, driving the power connecting rod to move. This power is then converted into power for the rotating sleeve via a rack, spur gear, first bevel gear, and second bevel gear, driving the fan blades to rotate and generate directional airflow. This accelerates heat exchange in the heat dissipation fins, compensating for insufficient passive heat dissipation. Furthermore, the ratchet, pawl, and first spring work together to restrict the unidirectional rotation of the rotating rod, preventing the fan blades from rotating in the opposite direction and ensuring stable airflow direction. Overall, active heat dissipation and unidirectional transmission are achieved, further improving heat dissipation efficiency and stability, which is conducive to ensuring the long-term reliable operation of the device.

[0019] Third, by setting up an installation strip and a locking mechanism, the slot of the installation strip and the fin insert precisely match to achieve positioning installation. The groove at the bottom of the insert guides the thermally conductive silicone to fill evenly, eliminating gaps and avoiding heat transfer interruptions, making the heat dissipation fins more secure while also ensuring heat conduction efficiency. The locking mechanism includes a pin, an operating plate, and a second spring. The installation and removal of the fins can be completed simply by moving the operating plate, without the need for complicated tools. This allows for convenient and flexible adjustment of the number of fins, while reducing the difficulty and cost of later maintenance and replacement.

[0020] IV. Through the setting of components such as marking strips, U-shaped frames, clamping screws, limiting blocks, and cones, the cones clamp the marking strips and scratch the surface of the marking strips as the piston rod extends and retracts, intuitively reflecting the maximum extension and retraction amplitude of the piston rod; the clamping screws and limiting blocks fix the position of the marking strips to prevent the scratches from distorting the data; the staff can quickly remove the marking strips to obtain data through the hand lever without disassembling the device, which facilitates the provision of experimental support for device performance optimization, structural improvement, and seismic design. Attached Figure Description

[0021] Figure 1 A schematic diagram of the viscous damping device based on high-efficiency heat dissipation provided by the present invention;

[0022] Figure 2 for Figure 1 A top view of the viscous damping assembly shown;

[0023] Figure 3 for Figure 2 A cross-sectional view of the AA of the viscous damping component shown;

[0024] Figure 4 for Figure 3 The diagram shows the arrangement of the heat-conducting rods and natural graphite sheets.

[0025] Figure 5 for Figure 4 The side view of the piston shown;

[0026] Figure 6 for Figure 1 The diagram shown is a structural schematic of the power introduction mechanism.

[0027] Figure 7 for Figure 6 A schematic diagram of the power introduction mechanism from another perspective;

[0028] Figure 8 for Figure 6 A top view of the circular gear shown;

[0029] Figure 9 for Figure 1 The diagram shows the assembly of the heat sink fins and mounting strips.

[0030] Figure 10 for Figure 9 The schematic diagram of the locking mechanism shown is as follows:

[0031] Figure 11 for Figure 9 The diagram shows the structure of the heat sink fins.

[0032] Figure 12 for Figure 7 The diagram shows the structure of the marker bar.

[0033] Figure 13 for Figure 7 The diagram shows the interaction between the handpiece and the limiting block.

[0034] Figure 14 for Figure 7 The diagram shows the alignment of the marking strip with the cone head.

[0035] Numbering on the map:

[0036] 1. Cylinder block; 2. Piston rod; 3. Bushing; 4. Piston; 401. Sliding hole; 5. Heat-conducting rod; 6. Natural graphite sheet; 7. Heat dissipation fins; 701. Round insertion hole; 8. Rotating sleeve; 9. Fan blade; 10. First bevel gear; 11. Power connecting rod; 12. Fixed seat; 13. Rack; 14. Rotating rod; 15. Second bevel gear; 16. Circular gear; 17. Ratchet; 18. C-shaped limit switch 19. Hand plate; 20. Marking strip; 21. U-shaped frame; 22. Clamping screw; 23. Limiting block; 24. Cone head; 25. Pawl; 26. Fixing plate; 27. First spring; 28. Mounting strip; 2801. Slot; 29. ​​Pin; 30. Operating plate; 31. Second spring; 100. Upper node plate; 200. Lower node plate; 110. Upper mounting plate; 210. Lower mounting plate. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] Please refer to the following: Figures 1-14A viscous damping device based on efficient heat dissipation includes: a viscous damping assembly, an upper node plate 100, and a lower node plate 200. The viscous damping assembly includes a cylinder 1, a piston rod 2, two bushings 3, and a piston 4. The two bushings 3 are fixedly installed inside the cylinder 1. The piston rod 2 passes through and is slidably and sealingly installed on the two bushings 3. The upper node plate 100 is hinged to the end of the piston rod 2 located outside the cylinder 1. An upper mounting plate 110 is fixedly installed on the top of the upper node plate 100. The end of the cylinder 1 away from the upper node plate 100 is fixed. A connector is installed, with the lower node plate 200 hinged to the end of the connector away from the cylinder 1. A lower mounting plate 210 is fixedly installed at the bottom of the lower node plate 200. The upper mounting plate 110 and the lower mounting plate 210 are respectively connected to embedded components pre-embedded in the upper and lower cantilever walls of the building. The piston 4 is fixedly sleeved on the piston rod 2, and the piston 4 is located between two bushings 3. The cylinder 1, located between the two bushings 3, is also filled with dimethyl silicone oil. Multiple heat-conducting rods 5 are slidably installed through and arranged in a ring array on the piston 4. The heat-conducting rod 5 is fixedly connected to two bushings 3 at both ends. The heat-conducting rod 5 is made of copper and includes a middle section and two end sections. The middle section has a quincunx-shaped cross-section, and the end sections have cylindrical cross-sections. The end sections are integrally formed with the middle section. A sliding hole 401 adapted to the middle section is provided on the piston 4. The middle section passes through the sliding hole 401 and slides within it. The quincunx-shaped middle section design of the heat-conducting rod 5 significantly increases the contact area with the sliding hole 401 inside the piston 4, while also expanding the contact area with the dimethyl silicone oil inside the cylinder 1. The contact range allows the heat generated by the shear friction of the dimethyl silicone oil to be transferred to the heat-conducting rod 5 more quickly. Multiple natural graphite sheets 6 are fixedly installed on the outer wall of the heat-conducting rod 5 near both ends. The ends of the multiple natural graphite sheets 6 away from the piston rod 2 are fixedly connected to the inner wall of the cylinder 1. The natural graphite sheets 6 have a high thermal conductivity coefficient. With one end fixed to the heat-conducting rod 5 and the other end connected to the inner wall of the cylinder 1, the heat absorbed by the heat-conducting rod 5 can be efficiently transferred to the outer wall of the cylinder 1. Multiple heat dissipation fins 7 are also fixedly installed on the outer wall of the cylinder 1.

[0039] In this embodiment, a rotating sleeve 8 is rotatably sleeved on the outer wall of the cylinder body 1. Multiple fan blades 9 are fixedly installed on the outer wall of the rotating sleeve 8 in a rotationally symmetrical distribution. When the fan blades 9 rotate, they can generate directional airflow. The airflow quickly sweeps over the surface of the heat dissipation fins 7, accelerating the heat exchange efficiency between the heat dissipation fins 7 and the air. A power introduction mechanism for driving the rotating sleeve 8 to rotate is also installed on the outer wall of the cylinder body 1.

[0040] Specifically, the power introduction mechanism includes a power connecting rod 11, a fixed seat 12, a rack 13, a rotating rod 14, a second bevel gear 15, a spur gear 16, and a C-shaped limiting sleeve 18. The fixed seat 12 is fixedly installed on the outer wall of the cylinder body 1, and the C-shaped limiting sleeve 18 is fixedly installed on the fixed seat 12. The power connecting rod 11 passes through and slides inside the C-shaped limiting sleeve 18. The C-shaped limiting sleeve 18 can restrict the movement direction of the power connecting rod 11, ensuring that it only slides stably along the axial direction of the piston rod 2, avoiding lateral displacement that could lead to power transmission failure. The end of the power connecting rod 11 away from the cylinder body 1 is fixedly connected to the piston rod 2, and the rack 13 is fixedly installed near the power connecting rod 11. On one side of the outer wall of the fixed base 12, the rotating rod 14 is rotatably mounted on the fixed base 12. The spur gear 16 is sleeved on the rotating rod 14 and meshes with the rack 13. When the piston rod 2 extends and retracts under the action of an earthquake, it will drive the power connecting rod 11 to move synchronously. The rack 13 will then mesh with and drive the spur gear 16 to rotate. The second bevel gear 15 is fixedly mounted on the bottom end of the rotating rod 14. The first bevel gear 10 is fixedly sleeved on the outer wall of the rotating sleeve 8. The first bevel gear 10 meshes with the second bevel gear 15. The cooperation between the first bevel gear 10 and the second bevel gear 15 can change the direction of power transmission, drive the rotating sleeve 8 to rotate, and then drive the fan blade 9 to rotate.

[0041] In this embodiment, to enable the fan blade 9 to rotate in a single direction, a circular gear 16 is rotatably mounted on a rotating rod 14. A ratchet 17 is fixedly mounted on the top of the rotating rod 14. Two pawls 25 are rotatably mounted on the top of the circular gear 16. The ends of the two pawls 25 near the rotating rod 14 are located in the ratchet grooves on the corresponding ratchet 17. Two fixing plates 26 are fixedly mounted on the top of the circular gear 16. A first spring 27 is fixedly mounted on the outer wall of the two fixing plates 26 near the rotating rod 14. The ends of the two first springs 27 near the rotating rod 14 are fixedly connected to the corresponding pawls 25. The first springs 27 always press the pawls 25 tightly into the ratchet grooves of the ratchet 17, so that the circular gear 16 can only drive the ratchet 17 to rotate in a single direction (i.e., when the piston rod 2 extends or retracts, it only drives the rotating rod 14 in one direction). This prevents the circular gear 16 from reversing when the piston rod 2 returns, causing the fan blade 9 to rotate in the opposite direction, ensuring stable airflow direction and continuously improving the heat dissipation effect.

[0042] In this embodiment, multiple mounting strips 28 are welded to the outer wall of the cylinder body 1. Slots 2801 are formed within the mounting strips 28. An insert strip, adapted to the slot 2801, is integrally formed at the bottom of the heat dissipation fins 7. The insert strip is located within the slot 2801. Thermally conductive silicone is filled between the bottom of the insert strip and the inner bottom wall of the slot 2801. This silicone fills the gap between the insert strip and the slot 2801, preventing heat conduction loss due to assembly gaps and ensuring efficient heat transfer between the heat dissipation fins 7 and the cylinder body 1. The bottom of the insert has a longitudinal groove and several transverse grooves. The transverse grooves are connected to the longitudinal grooves. Before installing the heat dissipation fins 7, silicone is applied to the longitudinal grooves and several transverse grooves. Then the insert is inserted into the slot 2801. This avoids the thermal silicone from being "filled in vacancies", ensures heat transfer without gaps, and improves the stability of the installation. The insert has a round insertion hole 701. The mounting strip 28 is equipped with a locking mechanism, which is used to lock the insert in place by cooperating with the round insertion hole 701.

[0043] Specifically, the locking mechanism includes a pin 29, an operating plate 30, and a second spring 31. The pin 29 is slidably mounted on one side of the outer wall of the mounting strip 28, with one end extending into the circular insertion hole 701. The operating plate 30 is fixedly mounted on the end of the pin 29 away from the circular insertion hole 701. The second spring 31 is sleeved on the pin 29, with one end fixedly connected to the mounting strip 28 and the other end fixedly connected to the operating plate 30. A limiting rod is also fixedly mounted on the mounting strip 28, passing through the operating plate 30 and slidably connected to it. The limiting rod is located away from the mounting strip 28. One end of 8 is also fixedly installed with a limiting end plate. During installation, the operating piece 30 is first moved to one side until it contacts the limiting end plate. The pin 29 also moves to one side under the action of the operating piece 30, and finally its holding end is removed from the slot 2801. During this process, the second spring 31 will be stretched. While keeping the operating piece 30 from resetting, the insert is inserted into the slot 2801 and placed in place. At this time, the round insertion hole 701 and the pin 29 are axially aligned. After releasing the operating piece 30, the pin 29 is automatically inserted into the round insertion hole 701 under the action of the second spring 31, completing the quick locking.

[0044] In this embodiment, a strip-shaped groove is provided at one end of the power connecting rod 11 near the cylinder body 1. A marking strip 20 is installed in the strip groove. A central circular groove is provided on the outer wall of the marking strip 20 away from the rotating rod 14. A cone 24 is threaded on the C-shaped limiting sleeve 18. The tip of the cone 24 is located in the central circular groove. When the power connecting rod 11 moves with the piston rod 2, the marking strip 20 and the cone 24 slide relative to each other. The tip of the cone 24 will scratch continuous marks on the surface of the marking strip 20. The length of the scratches on the left and right sides can be measured with the center of the central circular groove as the zero point.

[0045] In this embodiment, a hand plate 19 located in a strip groove is fixedly installed at one end of the marking strip 20 near the cylinder 1. The end of the hand plate 19 away from the marking strip 20 extends out of the strip groove and has a circular hook hole. The hand plate 19 allows the operator to quickly remove the marking strip 20 to measure the scratches. The circular hook hole allows the operator to easily hook the hand plate 19 out. In addition, the marking strip 20 can be hung up and stored after it is removed to avoid loss or damage. The extreme positions at both ends of the scratches correspond to the maximum stroke of the piston rod 2. By measuring the scratch length or extreme position, the maximum extension amplitude of the piston rod 2 during the earthquake can be directly obtained, providing accurate measured data for the performance optimization, structural improvement and subsequent seismic design of the damping device.

[0046] In this embodiment, a circular slot is provided on the outer wall of the hand plate 19 away from the rotating rod 14. A U-shaped frame 21 is fixedly installed on the power connecting rod 11. A tightening screw 22 is threaded through and installed on the U-shaped frame 21. A limiting block 23 is rotatably sleeved on the end of the tightening screw 22 near the hand plate 19. The end of the limiting block 23 away from the tightening screw 22 extends into the circular slot. By screwing the tightening screw 22, it can be gradually brought closer to the hand plate 19. Driven by the tightening screw 22, the limiting block 23 will enter the circular slot and finally tighten the hand plate 19. This can prevent the hand plate 19 from moving, and thus the position of the marking strip 20 can be reliably maintained.

[0047] In this embodiment:

[0048] When an earthquake generates vibration load, the external force pushes the piston rod 2 to extend and retract along the axial direction of the cylinder 1. Since the piston 4 is fixedly sleeved on the piston rod 2, the piston rod 2 drives the piston 4 to slide synchronously between the two bushings 3. The piston 4 undergoes shear friction with the dimethyl silicone oil inside the cylinder 1, which on the one hand converts vibration energy into heat energy to achieve energy dissipation and vibration reduction, and on the other hand, raises the temperature inside the cylinder 1. During the sliding process of the piston 4, its internal sliding hole 401 maintains close contact with the plum blossom-shaped middle section of the heat-conducting rod 5, and the heat generated by the dimethyl silicone oil is quickly transferred to the heat-conducting rod 5. The heat rod 5 is fixed to the bushing 3 at both ends. The heat is further transferred to the natural graphite sheets 6 at both ends through the heat rod 5. The natural graphite sheets 6, with their high thermal conductivity, efficiently conduct the heat to the inner wall of the cylinder 1 and then to the outside of the cylinder 1. The outer wall of the cylinder 1 is fitted with heat dissipation fins 7 through the mounting strip 28. Thermally conductive silicone is filled between the insert of the heat dissipation fin 7 and the slot 2801 of the mounting strip 28. The heat is completely transferred to the heat dissipation fins 7 through the thermally conductive silicone. The heat dissipation fins 7 then dissipate the heat to the surrounding environment by increasing the contact area with the air, thereby achieving rapid heat dissipation.

[0049] When the piston rod 2 extends or retracts, it drives the power connecting rod 11 to move synchronously. Under the guidance of the C-shaped limiting sleeve 18, the power connecting rod 11 maintains stable axial sliding, and the rack 13 on its surface drives the spur gear 16 to rotate. Since the spur gear 16 is rotated and sleeved on the rotating rod 14, and a ratchet 17 is fixed at the top of the rotating rod 14, the pawl 25 at the top of the spur gear 16 is always pressed into the ratchet groove of the ratchet 17 under the elastic force of the first spring 27. This structure allows the spur gear 16 to drive the ratchet 17 to rotate in only one direction, thereby driving the rotating rod 14 to rotate in one direction, preventing the piston rod 2 from reversing during its return stroke. The second bevel gear 15 at the bottom of the rotating rod 14 meshes with the first bevel gear 10 on the rotating sleeve 8, transmitting rotational power to the rotating sleeve 8, causing the rotating sleeve 8 to drive the fan blade 9 to rotate, generating directional airflow. The airflow quickly sweeps across the surface of the heat dissipation fins 7, accelerating the heat exchange between the fins and the air, greatly improving the heat dissipation speed, and ensuring that the temperature inside the cylinder 1 remains stable within a reasonable range.

[0050] Furthermore, during the movement of the power connecting rod 11, the marking strip 20 within its groove moves along with it. The cone 24 on the C-shaped limiting sleeve 18 maintains stable pressure on the marking strip 20 through threaded adjustment. When the two slide relative to each other, the tip of the cone 24 will scratch continuous marks on the surface of the marking strip 20. To prevent the marking strip 20 from shifting position during movement, the locking screw 22 on the U-shaped frame 21 can be screwed on to drive the limiting block 23 into the circular slot of the hand plate 19, thus securing the hand plate 19 and keeping the marking strip 20 in a stable position. After the earthquake, workers can remove the marking strip 20 through the hand plate 19 and measure the lengths on both sides of the scratch with the center of the central groove as the zero point. Based on the extreme positions at both ends of the scratch, the maximum extension and contraction amplitude of the piston rod 2 is determined, providing accurate measured data support for subsequent performance optimization, structural improvement, and seismic design of the damping device.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A viscous damping device based on efficient heat dissipation, comprising a viscous damping assembly, an upper node plate, and a lower node plate. The viscous damping assembly includes a cylinder, a piston rod, two bushings, and a piston. Both bushings are fixedly installed within the cylinder. The piston rod passes through and is slidably and sealingly installed on the two bushings. The piston is fixedly sleeved on the piston rod and located between the two bushings. The upper node plate is hinged to the end of the piston rod outside the cylinder. An upper mounting plate is fixedly installed on the top of the upper node plate. A connecting body is fixedly installed at the end of the cylinder away from the upper node plate. The lower node plate is hinged to the end of the connecting body away from the cylinder. The device is characterized in that… Multiple heat-conducting rods arranged in a ring array are slidably mounted through the piston. The two ends of the heat-conducting rods are fixedly connected to the two bushings respectively. Multiple natural graphite sheets are fixedly mounted on the outer wall of the heat-conducting rods near the two ends. The ends of the multiple natural graphite sheets away from the piston rod are fixedly connected to the inner wall of the cylinder. Multiple heat dissipation fins are also fixedly mounted on the outer wall of the cylinder. A rotating sleeve is rotatably mounted on the outer wall of the cylinder body. Multiple fan blades are fixedly installed on the outer wall of the rotating sleeve in a rotationally symmetrical manner. A power introduction mechanism for driving the rotating sleeve to rotate is also installed on the outer wall of the cylinder body. The power introduction mechanism includes a power connecting rod, a fixed seat, a rack, a rotating rod, a second bevel gear, a spur gear, and a C-shaped limiting sleeve. The fixed seat is fixedly installed on the outer wall of the cylinder body, and the C-shaped limiting sleeve is fixedly installed on the fixed seat. The power connecting rod passes through and slides inside the C-shaped limiting sleeve. The end of the power connecting rod away from the cylinder body is fixedly connected to the piston rod. The rack is fixedly installed on the outer wall of the power connecting rod near the fixed seat. The rotating rod is rotatably installed on the fixed seat. The spur gear is sleeved on the rotating rod and meshes with the rack. The second bevel gear is fixedly installed at the bottom end of the rotating rod. A first bevel gear is fixedly sleeved on the outer wall of the rotating sleeve, and the first bevel gear meshes with the second bevel gear. The spur gear is rotatably mounted on the rotating rod. A ratchet is fixedly mounted on the top of the rotating rod. Two pawls are rotatably mounted on the top of the spur gear. The ends of the two pawls near the rotating rod are located in the ratchet grooves on the corresponding ratchets. Two fixing plates are fixedly mounted on the top of the spur gear. A first spring is fixedly mounted on the outer wall of the two fixing plates near the rotating rod. The ends of the two first springs near the rotating rod are fixedly connected to the corresponding pawls.

2. The viscous damping device based on high-efficiency heat dissipation according to claim 1, characterized in that, The heat-conducting rod includes a middle section and two end sections. The cross-section of the middle section is shaped like a plum blossom, and the cross-section of the two end sections is cylindrical. The two end sections are integrally formed with the middle section. The piston has a sliding hole adapted to the middle section. The middle section passes through the sliding hole and is slidably connected to the inside of the sliding hole.

3. The viscous damping device based on high-efficiency heat dissipation according to claim 1, characterized in that, Multiple mounting strips are welded to the outer wall of the cylinder, and slots are provided in the mounting strips. The bottom of the heat dissipation fins is integrally formed with an insert that is adapted to the slot. The insert is located in the slot, and thermally conductive silicone is filled between the bottom of the insert and the bottom inner wall of the slot. A circular insertion hole is provided on the insert. A locking mechanism is provided on the mounting strip. The locking mechanism is used to cooperate with the circular insertion hole to lock the insert.

4. The viscous damping device based on high-efficiency heat dissipation according to claim 3, characterized in that, The locking mechanism includes a pin, an operating plate, and a second spring. The pin is slidably mounted on one side of the outer wall of the mounting strip, with one end of the pin extending into the circular insertion hole. The operating plate is fixedly mounted on the end of the pin away from the circular insertion hole. The second spring is sleeved on the pin, with one end of the second spring fixedly connected to the mounting strip and the other end fixedly connected to the operating plate.

5. The viscous damping device based on high-efficiency heat dissipation according to claim 1, characterized in that, The power connecting rod has a strip groove at one end near the cylinder body, a marking strip is installed in the strip groove, and a central circular groove is opened at the center of the outer wall of the marking strip away from the rotating rod. A cone head is threaded onto the C-shaped limiting sleeve, and the tip of the cone head is located in the central circular groove.

6. The viscous damping device based on high-efficiency heat dissipation according to claim 5, characterized in that, The end of the marking strip near the cylinder body is fixedly installed with a hand plate located in the strip groove, and the end of the hand plate away from the marking strip extends out of the strip groove and has a circular hook hole.

7. The viscous damping device based on high-efficiency heat dissipation according to claim 6, characterized in that, A circular slot is provided on the outer wall of the hand plate away from the rotating rod. A U-shaped frame is fixedly installed on the power connecting rod. A clamping screw is threaded through and installed on the U-shaped frame. A limiting block is rotatably sleeved on the end of the clamping screw near the hand plate. The end of the limiting block away from the clamping screw extends into the circular slot.

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