A friction damper for vibration reduction in public buildings and its installation method

Abstract

This invention belongs to the technical field of building vibration damping devices, specifically a friction damper for public buildings and its installation method, including a friction damper, a connecting assembly, and an attachment assembly. The attachment assembly includes an attachment plate disposed on both sides of the outer surface of the friction damper, and heat dissipation grooves are evenly formed on the back of the inner cavity of the attachment plate. This device can absorb the vibration force of the building and convert it into frictional internal energy between the outer friction rod and the complementary sliding groove, achieving a buffering and vibration reduction effect and enhancing the stability of the building. Since the vibration direction of the building may not be in the same plane as the thick connecting rod, it may cause the thick connecting rod to tend to bend laterally. The device is improved at the connection point with the building, allowing the embedded connecting rod to slide relative to the inner wall of the bundled shell, thereby reducing the bending stress on the thick connecting rod through the side-pressure buffer sleeve, avoiding bending deformation of the friction damper and the thick connecting rod, which could lead to device damage.

Description

Technical Field

[0001] This invention belongs to the technical field of building vibration damping devices, specifically a friction damper for vibration damping of public buildings and its installation method. Background Technology

[0002] Building structure energy dissipation and vibration reduction refers to the use of specific structural measures designed and installed to reduce the impact of vibration amplitude on the structure under earthquake or other vibration loads. The application of dampers in building structures has allowed people to move beyond the traditional concept of strengthening beams, columns and walls to improve vibration resistance. By combining the dynamic performance of the structure, it cleverly avoids or reduces the damage to buildings caused by earthquakes and wind.

[0003] An existing damper device for energy dissipation and vibration reduction in building structures, disclosed in CN118958541A, uses a ventilation mesh and heat-conducting fins to ensure that the heat-conducting fins can absorb frictional heat more efficiently, avoiding high temperatures that could affect the overall vibration reduction effect of the device. However, when an earthquake causes the entire building to vibrate, the wavelength of the earthquake can be divided into transverse waves and longitudinal waves, meaning the building will vibrate in both vertical and horizontal directions. When the device is installed between two buildings, it can only effectively buffer the amplitude of the parallel friction plate. The amplitude of the vertical friction plate will cause the mounting components and the friction plate to undergo lateral bending deformation, resulting in damage to the internal straight plate of the device and failing to provide effective earthquake resistance. Therefore, improvements are needed. Summary of the Invention

[0004] To address the problem that existing dampers are prone to bending deformation during earthquakes, the technical solution adopted in this invention is: a friction damper for vibration reduction in public buildings, comprising:

[0005] Friction resistors, connecting assemblies, and mounting assemblies;

[0006] The attachment component includes:

[0007] An attachment plate is disposed on both sides of the outer surface of the friction resist, and a heat dissipation groove is evenly provided on the back of the inner cavity of the attachment plate.

[0008] The docking side shell has its outer surface fixedly connected to the side of the attachment plate, and thick spring connecting plates are symmetrically arranged on the upper and lower sides of the inner wall of the docking side shell. The attachment plates on both sides are inserted into the side of the counterweight shell through the docking side shell, and can slide vertically along the outer surface of the counterweight shell, and then be reset by the thick spring connecting plates.

[0009] The friction outer rods are evenly arranged on the outside of the attachment plate, and the outer surface of the friction outer rods is fixedly welded to the inner cavity of the attachment plate.

[0010] Furthermore, the friction resist includes:

[0011] The counterweight shell has complementary sliding grooves evenly distributed on both sides of its outer surface. The outer surface of the friction rod is slidably connected to the outer surface of the counterweight shell through the complementary sliding grooves. The outer surface of the friction rod and the inner wall of the complementary sliding grooves are complementary and fit together in a near-interlocking manner.

[0012] The internal temperature sensing components are evenly distributed inside the counterweight shell to measure the temperature of the inner wall of the complementary groove;

[0013] The limiting top plate consists of two plates, and the middle part of the outer surface of the limiting top plate is inserted into the end part of the friction plate.

[0014] Furthermore, the connection component includes:

[0015] A cluster shell, wherein embedded connecting rods are symmetrically arranged on the top of the outer surface of the cluster shell, and the outer surface of the embedded connecting rods is inserted into the interior of the building;

[0016] A buffer sleeve, the outer surface of which is fixedly connected to the inner wall of the bundled shell through an expansion groove;

[0017] The thick connecting rod has its top end inserted into the inner wall of the buffer sleeve, and a limiting inner plate is sleeved on the bottom of the outer surface of the thick connecting rod. The thick connecting rods of the two side connecting components are symmetrically distributed and connect to the buildings on both sides respectively. The thick connecting rod can slide in the inner cavity of the bundle shell, thereby compressing the buffer sleeve, but cannot be pulled out from the inside of the bundle shell.

[0018] Furthermore, the connection component also includes:

[0019] The outer plate is fixed, and the inner cavity of the fixed outer plate is evenly provided with guide grooves. The bottom end of the outer surface of the thick connecting rod is slidably connected to the inner wall of the fixed outer plate through the guide grooves. The outer surface of the limiting inner plate is slidably connected to the inner wall of the fixed outer plate. The side of the outer surface of the fixed outer plate away from the thick connecting rod is fixedly connected to the outer surface of the counterweight shell. When the thick connecting rod tends to slide out from the inside of the bundle shell, it will drive the limiting inner plate to slide along the inner wall of the fixed outer plate, and at the same time pull the attachment plate to slide vertically along the outer surface of the counterweight shell.

[0020] Furthermore, the connection component also includes:

[0021] An internal motor is provided, the outer surface of which is fixedly connected to the inner wall of the friction rod.

[0022] A vertical fan blade rod, wherein the axis of the inner cavity of the vertical fan blade rod is inserted into the outer surface of the built-in motor shaft, and the outer surface of the vertical fan blade rod is rotatably connected to the inner wall of the friction outer rod;

[0023] An extended conductor is provided, one end of which is fixedly connected to the inner cavity of the built-in motor, and the other end of which is connected to the inner cavity of the fixed outer plate through a heat dissipation groove.

[0024] Furthermore, the internal temperature sensing component includes:

[0025] The deflection plate has its outer surface rotatably connected to the inner wall of the counterweight shell via a guide rod, and the outer surface of the guide rod is fixedly connected to the inner wall of the counterweight shell. Since the inner cavity of the guide rod is equipped with a rotary spring, under normal circumstances, the deflection plate will deflect to the side that is in contact with the inner wall of the counterweight shell, i.e., the location of the complementary slide groove, due to the elasticity of the rotary spring.

[0026] A temperature sensing plate, the outer surface of which is fixedly connected to the inner cavity of a deflecting plate, and the side of the outer surface of the temperature sensing plate away from the deflecting plate is pressed against the inner wall of the counterweight shell through a complementary groove.

[0027] Furthermore, the internal temperature sensing component also includes:

[0028] The outer surface of the traction drum is fixedly connected to the inner wall of the counterweight shell;

[0029] A storage drum, wherein the outer surface of the storage drum is inserted into the center of the outer surface of the traction drum, and the outer surface of the traction drum shaft extends through a through-hole to the center of the inner wall of the storage drum.

[0030] The traction belt has one end extending through a slot to the outside of the receiving drum and inserted into the outer surface of the deflecting plate. The other end of the traction belt is fixedly connected to the outer surface of the traction drum shaft. The shaft of the traction drum drives the end of the traction belt to rotate, thereby achieving the effect of winding the traction belt and pulling the deflecting plate to rotate.

[0031] Furthermore, the limiting top plate also includes:

[0032] A flared outer shell, wherein an expansion opening is provided at the axial center of the top of the inner cavity of the flared outer shell;

[0033] An embedded sliding plate, wherein the inner wall of the embedded sliding plate is slidably connected to the top of the outer surface of the flared shell through an expansion port, and the inner wall of the embedded sliding plate is uniformly provided with buffer spring bands;

[0034] A heat sink is provided, wherein the outer surface of the heat sink is fixedly connected to the inner wall of the flared outer shell, and a connecting rod is uniformly provided at the top of the inner cavity of the heat sink, and the connecting rod extends into the interior of the counterweight shell, and the bottom of the heat sink extends to the outside of the flared outer shell through an air inlet groove.

[0035] The beneficial effects of this invention are as follows:

[0036] 1. This device can connect public buildings on both sides, absorbing the vibration force of the buildings and converting it into frictional internal energy between the outer friction rod and the complementary sliding groove, thereby achieving a buffering and shock absorption effect and enhancing the stability of the buildings. Since the vibration direction of the buildings may not be on the same plane as the thick connecting rod, it may cause the thick connecting rod to tend to bend laterally. The device is improved at the connection point with the building, so that the embedded connecting rod can slide relative to the inner wall of the bundle shell. This reduces the bending stress on the thick connecting rod by using a side-pressure buffer sleeve, avoiding bending deformation of the friction components and the thick connecting rod, which could lead to device damage.

[0037] 2. Due to the strong friction between the outer friction rod and the complementary groove, high temperatures are generated at their contact points, requiring cooling. Vertical fan blades are used to cool the outer friction rod from the inside out, while a heat sink is used to cool the inner wall of the complementary groove. This effectively alleviates the problem of thermal deformation caused by continuous high temperatures on both the outer friction rod and the complementary groove. Furthermore, the use of an inside-out heat dissipation method prevents air from circulating at the contact surface, thus avoiding the accumulation of external impurities on the outer surfaces of both components and preventing the friction components from jamming.

[0038] 3. Only when the friction resistor is overheated can the corresponding heat dissipation equipment be activated to effectively dissipate heat. Under normal circumstances, the temperature sensing plate is used to contact the inner wall of the complementary slide to monitor the actual temperature of the inner wall of the slide. When the temperature is too high, the temperature sensing plate can be pulled open by activating the traction drum to avoid the problem of continuous heat absorption and damage to the temperature sensing plate. It can also prevent the inner wall of the complementary slide from being blocked by the biased rotating plate, which is more conducive to heat dissipation. At the same time, the temperature sensing triggering method is also conducive to reducing the energy consumption of power heat dissipation equipment such as the diversion heat sink.

[0039] 4. In the actual process of connecting the two buildings, since the flared shells on both sides do not come into contact with any building, when the flared shells on both sides are impacted by wind and rain, the flared shells will slide relative to the embedded sliding plate at the fixed point under the action of the buffer spring belt, thereby reducing the external force on the device and improving the stability of the device and the connection stability between the embedded connecting rod and the building. Attached Figure Description

[0040] Figure 1 This is a front view of a friction damper for vibration reduction in public buildings according to the present invention;

[0041] Figure 2 This is a cross-sectional view of a friction damper for vibration reduction in public buildings according to the present invention;

[0042] Figure 3 This is a cross-sectional view of the friction resist component of the present invention;

[0043] Figure 4 This is a cross-sectional view of the counterweight shell of the present invention;

[0044] Figure 5 This is a cross-sectional view of the bundle shell of the present invention;

[0045] Figure 6 This is a cross-sectional view of the attachment plate of the present invention;

[0046] Figure 7 This is an enlarged view of the internal temperature sensing component of the present invention;

[0047] Figure 8 This is a cross-sectional view of the flared outer shell of the present invention;

[0048] Figure 9 This is a flowchart of an installation method for a friction damper used for vibration reduction in public buildings according to the present invention.

[0049] In the diagram: 1. Friction resist; 2. Connecting assembly; 3. Attaching assembly; 31. Attaching plate; 32. Friction outer rod; 33. Butt side shell; 34. Coarse spring connecting plate; 35. Heat dissipation groove; 36. Built-in motor; 37. External extension wire; 38. Vertical fan blade rod; 21. Bundling shell; 22. Embedded connecting rod; 23. Buffer sleeve; 24. Coarse connecting rod; 25. Limiting inner plate; 26. Fixing outer plate; 27. Guide slide; 11. Counterweight shell; 12. Limiting top plate; 13. Complementary slide; 121. Flared outer shell; 122. Embedded sliding plate; 123. Buffer spring belt; 124. Heat dissipation plate; 125. Connecting plug rod; 4. Internal temperature sensing component; 41. Deflecting plate; 42. Temperature sensing plate; 43. Traction drum; 44. Storage drum; 45. Traction belt. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0051] Example 1, please refer to Figures 1-5 This invention provides a technical solution: a friction damper for vibration reduction in public buildings, comprising:

[0052] Friction resist 1, connecting assembly 2 and attaching assembly 3;

[0053] Attachment component 3 includes:

[0054] The attachment plate 31 is disposed on both sides of the outer surface of the friction resistor 1, and the back of the inner cavity of the attachment plate 31 is evenly provided with heat dissipation grooves 35.

[0055] The docking side shell 33 has its outer surface fixedly connected to the side of the attachment plate 31. The upper and lower sides of the inner wall of the docking side shell 33 are symmetrically provided with thick spring connecting plates 34. The attachment plates 31 on both sides are inserted into the side of the counterweight shell 11 through the docking side shell 33, and can slide vertically along the outer surface of the counterweight shell 11, and then be reset by the thick spring connecting plate 34.

[0056] The friction outer rods 32 are evenly arranged on the outside of the attachment plate 31, and the outer surface of the friction outer rods 32 is fixedly welded to the inner cavity of the attachment plate 31.

[0057] Friction resistor 1 includes:

[0058] The counterweight shell 11 has complementary sliding grooves 13 evenly provided on both sides of its outer surface. The outer surface of the friction rod 32 is slidably connected to the outer surface of the counterweight shell 11 through the complementary sliding grooves 13. The outer surface of the friction rod 32 is complementary to the inner wall of the complementary sliding grooves 13, and the two are engaged in a near-interlocking manner.

[0059] The internal temperature sensing component 4 is evenly arranged inside the counterweight shell 11 and is used to measure the temperature of the inner wall of the complementary slide 13.

[0060] There are two limiting top plates 12, and the middle part of the outer surface of the limiting top plate 12 is inserted into the end part of the friction plate.

[0061] Connection component 2 includes:

[0062] The cluster shell 21 has symmetrically arranged embedded connecting rods 22 on the top of its outer surface, and the outer surface of the embedded connecting rods 22 is inserted into the interior of the building.

[0063] The outer surface of the buffer sleeve 23 is fixedly connected to the inner wall of the bundle shell 21 through an expansion groove.

[0064] The thick connecting rod 24 has its top end inserted into the inner wall of the buffer sleeve 23. The bottom of the outer surface of the thick connecting rod 24 is fitted with a limiting inner plate 25. The thick connecting rods 24 of the two connecting components 2 are symmetrically distributed on the center and connect the buildings on both sides respectively. The thick connecting rod 24 can slide in the inner cavity of the bundle shell 21, thereby compressing the buffer sleeve 23, but cannot be pulled out from the inside of the bundle shell 21.

[0065] The connection components also include:

[0066] The outer plate 26 is fixed, and the inner cavity of the outer plate 26 is evenly provided with guide grooves 27. The bottom end of the outer surface of the thick connecting rod 24 is slidably connected to the inner wall of the outer plate 26 through the guide grooves 27. The outer surface of the limiting inner plate 25 is slidably connected to the inner wall of the outer plate 26. The side of the outer surface of the outer plate 26 away from the thick connecting rod 24 is fixedly connected to the outer surface of the counterweight shell 11. When the thick connecting rod 24 tends to slide out from the inside of the bundle shell 21, it will drive the limiting inner plate 25 to slide along the inner wall of the outer plate 26, and at the same time pull the attachment plate 31 to slide vertically along the outer surface of the counterweight shell 11.

[0067] The connecting components 2 on both sides of the device are connected to the buildings on both sides respectively, that is, the embedded connecting rod 22 is deeply buried inside the building to complete the connection work.

[0068] When the building is in the midst of an earthquake, the buildings on both sides will be pulled to the sides by the vibration of the cluster shell 21. At this time, the cluster shell 21 drives the thick connecting rod 24 to move, thereby pulling the attachment plate 31 to slide along the outer surface of the counterweight shell 11. Since the friction outer rod 32 is set inside the complementary slide groove 13, and the attachment plate 31 can only slide along the outer surface of the counterweight shell 11 under the restriction of the fixed outer plate 26, the friction outer rod 32 will slide along the inner wall of the complementary slide groove 13, thereby generating a strong frictional effect. The frictional force generates high temperature, converting the vibration force into internal energy, thereby playing a buffering role and stabilizing the buildings connected on both sides.

[0069] Since the vibration direction of the building may not be in the same plane as the thick connecting rod 24, it may cause the thick connecting rod 24 to tend to bend laterally. At this time, the building will cause the cluster shell 21 to slide laterally. However, the thick connecting rod 24 is restricted by the inner limiting plate 25 and cannot be bent. Therefore, the top of the thick connecting rod 24 will be squeezed with the buffer sleeve 23, thereby deforming the buffer sleeve 23. At this time, the cluster shell 21, the thick connecting rod 24 and the friction resist 1 will slide relative to each other, reducing the adverse effects of bending stress on the device.

[0070] When the friction outer rod 32 generates internal energy through friction with the complementary groove 13, the outer surface of the friction outer rod 32 will heat up rapidly. Therefore, it is necessary to cool down the friction outer rod 32 in time to avoid thermal deformation of the friction outer rod 32, which could cause the attachment assembly 3 to detach from the friction resistor 1. Therefore, a vertical fan blade rod 38 is provided inside each friction outer rod 32, that is, inside the attachment plate 31. The vertical fan blade rod 38 is driven to rotate by the built-in motors 36 on both sides, so that the airflow enters the inner wall of the attachment plate 31 through the heat dissipation groove 35 and circulates out, thereby cooling down the friction outer rod 32.

[0071] Example 2, please refer to Figures 1-9 The present invention provides a technical solution: based on embodiment 1, the connecting component 2 further includes:

[0072] Built-in motor 36, the outer surface of built-in motor 36 is fixedly connected to the inner wall of friction outer rod 32;

[0073] The vertical fan blade rod 38 has its inner cavity shaft inserted into the outer surface of the shaft of the built-in motor 36, and the outer surface of the vertical fan blade rod 38 is rotatably connected to the inner wall of the friction outer rod 32.

[0074] An extended wire 37 is provided, with one end of the extended wire 37 fixedly connected to the inner cavity of the built-in motor 36, and the other end of the extended wire 37 connected to the inner cavity of the fixed outer plate 26 through a heat dissipation groove 35.

[0075] The internal temperature sensing component 4 includes:

[0076] The deflection plate 41 has its outer surface rotatably connected to the inner wall of the counterweight shell 11 via a guide rod, and the outer surface of the guide rod is fixedly connected to the inner wall of the counterweight shell 11. Since the inner cavity of the guide rod is equipped with a rotary spring, under normal circumstances, the deflection plate 41 will deflect to the side that is in contact with the inner wall of the counterweight shell 11, i.e., the location of the complementary slide groove 13, due to the elasticity of the rotary spring.

[0077] The outer surface of the temperature sensing plate 42 is fixedly connected to the inner cavity of the deflection plate 41. The side of the outer surface of the temperature sensing plate 42 away from the deflection plate 41 is pressed against the inner wall of the counterweight shell 11 through the complementary groove 13.

[0078] The internal temperature sensing component 4 also includes:

[0079] The outer surface of the traction drum 43 is fixedly connected to the inner wall of the counterweight shell 11.

[0080] A storage drum 44 is inserted into the center of the outer surface of the traction drum 43, and the outer surface of the traction drum 43 shaft extends through a through-hole to the center of the inner wall of the storage drum 44.

[0081] The traction belt 45 has one end extending through a slot to the outside of the receiving drum 44 and inserted into the outer surface of the deflecting plate 41. The other end of the traction belt 45 is fixedly connected to the outer surface of the rotating shaft of the traction drum 43. The shaft of the traction drum 43 drives the end of the traction belt 45 to rotate, thereby achieving the effect of winding the traction belt 45 and pulling the deflecting plate 41 to rotate.

[0082] The limiting top plate 12 also includes:

[0083] The flared outer shell 121 has an expansion opening at the axis at the top of the inner cavity;

[0084] An embedded sliding plate 122 is provided. The inner wall of the embedded sliding plate 122 is slidably connected to the top of the outer surface of the flared outer shell 121 through an expansion port. The inner wall of the embedded sliding plate 122 is uniformly provided with buffer spring bands 123.

[0085] The heat sink 124 has its outer surface fixedly connected to the inner wall of the flared outer shell 121. The top of the inner cavity of the heat sink 124 is uniformly provided with connecting rods 125, which extend into the interior of the counterweight shell 11. The bottom of the heat sink 124 extends to the outside of the flared outer shell 121 through the air inlet groove.

[0086] Before the friction outer rod 32 rubs against the complementary slide 13, the deflecting plate 41, under the action of the spring rebound force, will directly contact the inner wall of the complementary slide 13 through the temperature sensing plate 42. When the inner wall of the complementary slide 13 heats up due to friction, the temperature sensing plate 42 will trigger the corresponding traction drum 43 through the internal sensor, thereby causing the traction drum 43 to pull apart the deflecting plates 41 on both sides by winding the traction belt 45. At this time, the temperature sensing plate 42 separates from the inner wall of the complementary slide 13, and the lower heat dissipation plate 12 is activated. 4. The heat dissipation plate 124 dissipates heat to the inside of the counterweight shell 11 through the connecting rod 125. Since the inner wall of the complementary slide 13 is not in contact with the temperature sensing plate 42 at this time, the actual heat dissipation effect of the complementary slide 13 will be enhanced, thereby quickly dissipating heat. After a period of cooling treatment, the traction drum 43 and the heat dissipation plate 124 are de-energized at the same time. Then, the bias plate 41 presses the temperature sensing plate 42 against the inner wall of the complementary slide 13 under the action of the spring rebound force inside the guide rod to perform temperature monitoring.

[0087] In the actual process of connecting the two buildings, since the flared outer shells 121 on both sides do not come into contact with any building, when the flared outer shells 121 on both sides are impacted by wind and rain, the flared outer shells 121 will slide relative to the embedded sliding plate 122 at the fixed point under the action of the buffer spring band 123, thereby reducing the external force on the device and improving the stability of the device and the connection stability between the embedded connecting rod 22 and the building.

[0088] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A friction damper for vibration reduction in public buildings, comprising: Friction resist (1), connecting assembly (2) and attaching assembly (3); The feature is that the attachment component (3) includes: An attachment plate (31) is disposed on both sides of the outer surface of the friction resist (1), and a heat dissipation groove (35) is uniformly opened on the back of the inner cavity of the attachment plate (31). The docking side shell (33) has its outer surface fixedly connected to the side of the attachment plate (31), and the upper and lower sides of the inner wall of the docking side shell (33) are symmetrically provided with thick spring connecting plates (34). Friction rods (32) are evenly arranged on the outside of the attachment plate (31), and the outer surface of the friction rods (32) is fixedly welded to the inner cavity of the attachment plate (31); The friction resistive element (1) includes: The counterweight shell (11) has complementary sliding grooves (13) evenly provided on both sides of its outer surface. The outer surface of the friction rod (32) is slidably connected to the outer surface of the counterweight shell (11) through the complementary sliding grooves (13). The internal temperature sensing component (4) is evenly arranged inside the counterweight shell (11) to measure the temperature of the inner wall of the complementary slide (13); The limiting top plate (12) is two in number, and the middle part of the outer surface of the limiting top plate (12) is inserted into the end part of the friction plate. The connection component (2) includes: The bundle shell (21) has an embedded connecting rod (22) symmetrically arranged on the top of its outer surface, and the outer surface of the embedded connecting rod (22) is inserted into the interior of the building; Buffer sleeve (23), the outer surface of which is fixedly connected to the inner wall of the bundle shell (21) through an expansion groove; A thick connecting rod (24) is inserted into the inner wall of a buffer sleeve (23) at its top end, and a limiting inner plate (25) is sleeved on the bottom of the outer surface of the thick connecting rod (24).

2. The friction damper for vibration reduction in public buildings according to claim 1, characterized in that: The connection component (2) further includes: The outer plate (26) is fixed, and the inner cavity of the outer plate (26) is evenly provided with guide grooves (27). The bottom end of the outer surface of the thick connecting rod (24) is slidably connected to the inner wall of the outer plate (26) through the guide grooves (27). The outer surface of the limiting inner plate (25) is slidably connected to the inner wall of the outer plate (26). The side of the outer surface of the outer plate (26) away from the thick connecting rod (24) is fixedly connected to the outer surface of the counterweight shell (11).

3. The friction damper for vibration reduction in public buildings according to claim 1, characterized in that: The connection component (2) further includes: Built-in motor (36), the outer surface of which is fixedly connected to the inner wall of the friction rod (32); The vertical fan blade rod (38) has its inner cavity shaft inserted into the outer surface of the shaft of the built-in motor (36), and the outer surface of the vertical fan blade rod (38) is rotatably connected to the inner wall of the friction outer rod (32). An extended wire (37) is provided, one end of which is fixedly connected to the inner cavity of the built-in motor (36), and the other end of which is connected to the inner cavity of the fixed outer plate (26) through a heat dissipation groove (35).

4. The friction damper for vibration reduction in public buildings according to claim 1, characterized in that: The internal temperature sensing component (4) includes: The outer surface of the deflection plate (41) is rotatably connected to the inner wall of the counterweight shell (11) through a guide rod, and the outer surface of the guide rod is fixedly connected to the inner wall of the counterweight shell (11). The outer surface of the temperature sensing plate (42) is fixedly connected to the inner cavity of the deflection plate (41). The side of the outer surface of the temperature sensing plate (42) away from the deflection plate (41) is pressed against the inner wall of the counterweight shell (11) through the complementary groove (13).

5. The friction damper for vibration reduction in public buildings according to claim 4, characterized in that: The internal temperature sensing component (4) also includes: The outer surface of the traction drum (43) is fixedly connected to the inner wall of the counterweight shell (11); A storage drum (44) is inserted at the center of the outer surface of the storage drum (43) and the outer surface of the traction drum (43) extends through the through hole to the center of the inner wall of the storage drum (44). The traction belt (45) has one end extending through a slot to the outside of the receiving drum (44) and inserted into the outer surface of the deflection plate (41). The other end of the traction belt (45) is fixedly connected to the outer surface of the traction drum (43) shaft.

6. The friction damper for vibration reduction in public buildings according to claim 1, characterized in that: The limiting top plate (12) also includes: A flared outer shell (121) has an expansion opening at the axial center of the top of the inner cavity of the flared outer shell (121); An embedded sliding plate (122) is provided with a buffer spring band (123) uniformly arranged on the inner wall of the embedded sliding plate (122) through an expansion port to the top of the outer surface of the flared shell (121). The heat sink (124) has its outer surface fixedly connected to the inner wall of the flared shell (121). A connecting rod (125) is uniformly arranged at the top of the inner cavity of the heat sink (124), and the connecting rod (125) extends into the interior of the counterweight shell (11). The bottom of the heat sink (124) extends to the outside of the flared shell (121) through the air inlet groove.

7. The installation method of a friction damper for vibration reduction in public buildings according to claim 1, characterized in that: Includes the following steps: S1: Insert the friction damper for public building vibration reduction laterally between the two buildings, and make the embedded connecting rod (22) face the outer surface of the building; S2: Construct on the outer surface of the building so that the embedded connecting rods (22) on both sides are fixed inside the building on both sides respectively; S3: Connect the power supply equipment to the outside of the friction damper used for vibration reduction in public buildings via an extension wire.

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