A multi-directional sliding vibration damping and isolation bearing for transmission towers and its working method

Abstract

This invention discloses a multi-directional sliding vibration damping and isolation bearing for transmission towers and its working method, which solves the problem of poor seismic performance of transmission tower foundations in the prior art and has the beneficial effect of improving the seismic resistance of transmission tower foundations. The specific solution is as follows: A multi-directional sliding vibration damping and isolation bearing for transmission towers includes a lateral displacement balance damping component, including a support base that can be installed on the foundation and supports the damping component; a slide rail assembly that is snapped together with the support base, the damping component being located between the slide rail assembly and the support base, the damping component being able to slide in the X direction relative to both the slide rail assembly and the support base, the slide rail assembly including a slide rail, the sliding surface of the slide rail being at a varying height relative to the foundation; and a connecting component, one side of the connecting component being connected to the pole body in the transmission tower, and the other side of the connecting component cooperating with the slide rail.

Description

Technical Field

[0001] This invention relates to the field of seismic resistance technology for prefabricated structures, and in particular to a multi-directional sliding seismic isolation bearing for transmission towers and its working method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] The construction of power transmission towers has developed rapidly and on a massive scale, with a focus on promoting ultra-high-voltage (UHV) transmission technology to improve energy transmission efficiency and coverage. However, the construction process is complex, facing challenges such as high costs, long construction periods, and high labor intensity, while continuously improving earthquake resistance and disaster resilience. Some transmission towers frequently cross earthquake-prone areas. In recent years, several strong earthquakes worldwide have damaged transmission towers and lines, affecting the stability of power systems and post-disaster recovery. As the height and span of transmission towers continue to increase, the threat of earthquakes to their safe operation is becoming increasingly serious. Therefore, improving the earthquake resistance of transmission towers is crucial for protecting power grid safety and reducing earthquake damage.

[0004] Traditional vibration reduction measures for power transmission towers primarily rely on the use of vibration dampers and other devices to buffer vibrations and enhance the structure's vibration reduction performance. However, these measures have limited effectiveness in the face of high-magnitude mega-earthquakes and are insufficient to effectively withstand the extreme impacts of strong earthquakes. In particular, traditional transmission tower foundations are typically not designed with vibration reduction in mind, leaving them lacking in seismic resilience and disaster resistance in complex seismic environments. These traditional foundations often fail to meet the high standards of seismic resistance required for power infrastructure in a rapidly developing market, necessitating new solutions to improve their seismic performance and overall resilience. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a multi-directional sliding seismic isolation bearing for transmission towers, which significantly reduces the vibration amplitude of the transmission tower in all directions under seismic action, thereby improving the safety and reliability of the entire transmission tower system.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] A multi-directional sliding vibration isolation bearing for transmission towers, comprising:

[0008] Lateral displacement balancing damping assembly includes a support base, which can be installed on the foundation and supports the damping component;

[0009] The slide rail assembly is snapped together with the support base. The shock-absorbing component is located between the slide rail assembly and the support base. The shock-absorbing component can slide in the X direction relative to both the slide rail assembly and the support base. The slide rail assembly includes a slide rail, and the height of the sliding surface of the slide rail relative to the foundation is variable.

[0010] The connecting component has one side connected to the pole body in the transmission tower, and the other side of the connecting component cooperates with the slide rail and can slide along the slide rail. During the process of the connecting component sliding along the slide rail, the pole body can move in the Y and Z directions.

[0011] As described above, a multi-directional sliding vibration isolation bearing for transmission towers is provided at the bottom of each pole of the transmission tower located on the diagonal, with the multi-directional sliding vibration isolation bearings on the diagonal facing each other.

[0012] As described above, a multi-directional sliding vibration damping and isolation bearing for transmission towers includes a slide rail assembly with an open support groove, the top side of the support seat being engaged in the support groove in the Y direction, and the vibration damping component located on the top side of the support seat.

[0013] As described above, a multi-directional sliding vibration damping and isolation bearing for transmission towers includes a slide rail assembly comprising a lateral sliding base plate, which is slidably connected to the support base. The lateral sliding base plate supports the slide rail, and the height of the slide rail relative to the lateral sliding base plate gradually increases. At least two sets of slide rails are provided.

[0014] As described above, a multi-directional sliding vibration damping and isolation bearing for transmission towers includes a lateral sliding base plate that supports a slide rail via a slide rail support member. The direction of the slide rail is perpendicular to the direction of movement of the slide rail assembly relative to the support base. The width of the slide rail is greater than the width of the sliding support member. The slide rail is an arc-shaped slide rail that protrudes from the higher side of the lateral sliding base plate and is located near the center of the transmission tower.

[0015] As described above, a multi-directional sliding vibration damping and isolation bearing for transmission towers includes a connecting assembly comprising a sliding ring capable of sliding along a slide rail. One side of the sliding ring is open, the width of the open portion of the sliding ring is less than the width of the slide rail, the length of the sliding ring is greater than the width of the slide rail, and the width of the sliding ring is greater than the thickness of the slide rail.

[0016] As described above, a multi-directional sliding vibration damping and isolation bearing for a transmission tower includes a connecting assembly that further comprises a connecting reversing base plate. One side of the connecting reversing base plate is connected to the sliding ring, and the other side of the connecting reversing base plate is hinged to the pole body in the transmission tower.

[0017] As described above, a multi-directional sliding vibration damping and isolation bearing for a transmission tower has a first limiting member on the side of the slide rail assembly facing the support to limit the movement of the slide rail assembly.

[0018] The slide rail assembly has a second limiting member on the side that mates with the connecting assembly to limit the movement of the connecting assembly along the slide rail.

[0019] On the other hand, the present invention also provides a working method for a multi-directional sliding vibration isolation bearing for transmission towers, comprising the following:

[0020] When the shaking direction of an earthquake is along the diagonal direction of the transmission tower, the transmission tower tends to move. The connecting component of one of the multi-directional sliding damping and isolation bearings located in the direction of the earthquake shaking gradually rises along the slide rail, causing the corresponding rod to gradually increase in height relative to the support seat. The connecting component of another multi-directional sliding damping and isolation bearing located in the direction of the earthquake shaking gradually decreases in height along its slide rail. This causes the transmission tower to tilt at an angle, counteracting the tendency of the transmission tower to move.

[0021] In a multi-directional sliding seismic isolation bearing located in a direction other than the seismic sway, the sliding rail assembly moves relative to the support seat, absorbing seismic energy in the X direction through the damping components.

[0022] The working method of a multi-directional sliding vibration isolation bearing for transmission towers, as described above, includes the following:

[0023] When the shaking direction of an earthquake is not diagonal to the transmission tower, when projected along the diagonal of the transmission tower, the connecting components in the two multi-directional sliding damping and isolation bearings on one diagonal move in opposite directions relative to the corresponding slide rail components, causing the transmission tower to tilt at an angle, thus counteracting the tendency of the transmission tower to be driven to move. The two multi-directional sliding damping and isolation bearings on the other diagonal absorb the X-direction seismic energy through the damping components.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1) This invention features a multi-directional sliding vibration damping and isolation bearing. The connecting component slides along the slide rail relative to the slide rail assembly. Because the height of the sliding surface of the slide rail relative to the foundation varies, the connecting component drives the rod to move in the Y and Z directions during the sliding process. The lateral displacement balancing damping component supports the slide rail assembly. Moreover, while the slide rail assembly is engaged with the support seat, the damping component can also slide in the X direction relative to both the slide rail assembly and the support seat. This allows the damping component to effectively dampen vibrations, ensuring that it can fully function and significantly reducing the vibration amplitude of the transmission tower system in all directions under seismic action, thereby improving the stability and reliability of the transmission tower. Because the connecting component is slidably connected to the slide rail, and the slide rail assembly is engaged with and can slide relative to the support seat, the entire structure is detachable and can be replaced if the entire structure is damaged.

[0026] 2) In this invention, the multi-directional sliding seismic isolation bearings are arranged on the diagonal of the transmission tower, and the multi-directional sliding seismic isolation bearings on the diagonal are arranged opposite to each other. In this way, when an earthquake occurs, the connecting components in the two multi-directional sliding seismic isolation bearings on the diagonal move in opposite directions along the slide rails due to the ground movement with the earthquake and the inertia of the transmission tower. This allows the transmission tower to tilt, thereby reducing the vibration amplitude of the transmission tower, improving the overall seismic toughness, and weakening the destructive force of the earthquake on the transmission tower.

[0027] 3) By using an arc-shaped slide rail, the present invention enables the entire support to adapt to different earthquake magnitudes and complex environments. It mainly deals with the more destructive horizontal (Y-direction) vibrations and provides a certain buffering effect for vertical (Z-direction) vibrations, making the whole system highly adjustable and adaptable. It can be adjusted and optimized according to different earthquake intensities and geological conditions, thereby providing the best seismic resistance effect in different environments.

[0028] 4) This invention transforms the inertia generated by an earthquake into a beneficial effect on the transmission tower, reducing damage. At the same time, its adjustable sliding rail design adapts to different earthquake magnitudes and complex environments. It is mainly designed for strong horizontal vibrations and provides buffering for vertical vibrations, effectively reducing the vibration amplitude of the transmission tower in all directions and suppressing the vibration of the transmission tower, thereby enhancing the safety and reliability of the overall power transmission system.

[0029] 5) This invention significantly shortens construction time and reduces costs through factory production and rapid on-site installation. It not only improves the seismic toughness of the transmission tower system, but also lays a solid foundation for the long-term stable operation of power infrastructure, ensuring stability and ease of construction under various construction conditions. Attached Figure Description

[0030] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0031] Figure 1 This is a front view of a multi-directional sliding vibration isolation bearing for a transmission tower according to one or more embodiments of the present invention.

[0032] Figure 2 This is a schematic diagram of a multi-directional sliding vibration isolation bearing for a transmission tower after removing the limiting component, according to one or more embodiments of the present invention.

[0033] Figure 3 This is a side view of a multi-directional sliding vibration isolation bearing for a transmission tower according to one or more embodiments of the present invention.

[0034] Figure 4This is a schematic diagram of the interlocking positions of multi-directional sliding vibration damping and isolation bearings for transmission towers according to one or more embodiments of the present invention. Figure 1 .

[0035] Figure 5 This is a schematic diagram of the interlocking positions of multi-directional sliding vibration damping and isolation bearings for transmission towers according to one or more embodiments of the present invention. Figure 2 .

[0036] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0037] The components are: 1. rod body, 2. base plate, 3. connector, 4. sliding ring connector, 5. sliding ring, 6. slide rail, 7. slide rail support, 8. lateral sliding base plate, 9. connecting bolt, 10. shock absorption component, 11. support seat, 12. second limiting component, 13. first limiting component. Detailed Implementation

[0038] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] As described in the background section, the existing technology has the problem of poor seismic performance of the foundation of transmission towers. In order to solve the above technical problems, this invention proposes a multi-directional sliding seismic isolation bearing for transmission towers.

[0041] In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 As shown, a multi-directional sliding vibration damping and isolation bearing for transmission towers includes:

[0042] Lateral displacement balancing damping assembly includes a support base, which can be installed on the foundation and supports the damping component;

[0043] The slide rail assembly is snapped together with the support base. The shock-absorbing component is located between the slide rail assembly and the support base. The shock-absorbing component can slide in the X direction relative to both the slide rail assembly and the support base. The slide rail assembly includes a slide rail 6, and the slope of the sliding surface of the slide rail 6 is variable.

[0044] The connecting component is connected to the pole 1 in the transmission tower on one side and to the slide rail 6 on the other side, and can slide along the slide rail 6. During the sliding of the connecting component along the slide rail, the pole can move in the Y and Z directions.

[0045] In this embodiment, the connecting assembly includes a connecting reversing base plate, a sliding ring 5, and a sliding ring connector 4. The connecting reversing base plate and the sliding ring 5 are connected by the sliding ring connector 4 to form a whole. It can be integrally cast from steel, which is convenient for on-site assembly and improves construction efficiency.

[0046] The sliding ring 5 has an open side to cooperate with the slide rail 6. The sliding ring 5 includes a connecting section, both ends of which are bent, and the bends at the ends of the connecting section are arranged opposite to each other.

[0047] It should be noted that the connecting reversing base plate includes a base plate 2 and a connecting piece 3. The connecting piece 3 is hinged to the rod 1 through a pin, which solves the problem of relative angle rotation.

[0048] In this embodiment, the side of the base plate 2 away from the connector 3 is connected to two sliding ring connectors 4. The sliding ring connector is specifically plate-shaped and is connected to the connecting section of the sliding ring.

[0049] In addition, the slide rail assembly includes a slide rail 6, a slide rail support 7, and a lateral sliding base plate 8, which are connected as a whole. It can also be cast as a whole from steel. The slide rail is an arc-shaped slide rail. The distance between the slide rail and the lateral sliding base plate 8 gradually increases, making the whole highly adjustable and adaptable.

[0050] Furthermore, the direction of the slide rail is perpendicular to the direction of movement of the slide rail assembly relative to the support base. The slide rail has a set width. The surface of the slide rail 6 is covered with a sliding surface made of polytetrafluoroethylene. The width of the slide rail 6 is greater than the width of the slide rail support 7 so as to cooperate with the sliding ring 5. The width of the opening of the sliding ring is less than the width of the slide rail. The length of the sliding ring 5 is greater than the width of the slide rail 6. The width of the sliding ring is greater than the thickness of the slide rail 6.

[0051] The connecting component and the slide rail component are mechanically connected by a sliding ring 5. The sliding ring 5 can slide freely on the sliding surface of the slide rail 6. The sliding ring 5 enters the middle of the slide rail from one end. The sliding ring is prevented from detaching from the slide rail 6 by the cooperation between the width of the slide rail and the bent end of the sliding ring.

[0052] It should be noted that the lateral sliding base plate 8 supports the two slide rails 6, the two slide rails 6 are spaced apart, the two slide rails 6 are parallel to each other, the connecting component is provided with two sets of sliding rings, each set is provided with two sliding rings 5, the two sliding rings 5 ​​in each set are spaced apart, and the two sliding rings in each set cooperate with one slide rail. In other examples, the number of slide rails can also be other.

[0053] refer to Figure 3 As shown, the lateral sliding balance damping assembly includes a damping component 10 and a support base 11. The lateral sliding base plate 8 and the support base 11 are interlocked by the support legs, ensuring that it can only move in one direction without affecting the damping effect of the lateral sliding balance damping assembly; the damping component is located between the support base 11 and the lateral sliding base plate 8.

[0054] Specifically, a support groove is provided on the side of the lateral sliding base plate 8 away from the slide rail assembly. The end and bottom of the support groove are open. The top of the support seat 11 is provided with an ear so that the top of the support seat is T-shaped. The support seat 11 supports the lateral sliding base plate 8 through the open support groove. The top of the support seat is provided with a concave part, which is an arc-shaped concave part. The support seat supports the shock-absorbing component 10 through the concave part. The upper surface of the shock-absorbing component 10 is flat, and the lower surface of the shock-absorbing component 10 is an arc-shaped surface. Thus, the longitudinal section of the shock-absorbing component can be semi-circular, and the length of the shock-absorbing component is adapted to the length of the concave part at the top of the support seat.

[0055] The length of the damping component 10 is the same as the length of the lateral sliding base plate 8, and the width of the support groove is greater than the width of the damping component 10.

[0056] It is easy to understand that the lateral sliding base plate 8 and the damping component 10, the damping component 10 and the support base 11, and the lateral sliding base plate 8 and the support base 11 are all fitted by sliding surfaces, and each sliding surface is a homopolymer polytetrafluoroethylene sliding surface.

[0057] In this embodiment, the support base 11 is provided with bolt holes, and the connecting bolts 9 pass through the bolt holes to connect the support base 11 to the foundation, thereby improving installation efficiency; the fabrication and assembly of the foundation can be completed in the factory, realizing assembly line work.

[0058] The material of the shock-absorbing component 10 has no strict requirements and can be flexibly selected according to the actual situation; rubber material can be selected. The foundation can be connected to the support base 11 and the ground through connecting bolts 9 to improve installation efficiency. The fabrication and assembly of the foundation can be completed in the factory, realizing assembly line work.

[0059] In addition, the slide rail assembly is provided with a first limiting member 13 on the side facing the support to limit the movement of the slide rail assembly; the slide rail assembly is provided with a second limiting member 12 on the side that mates with the connecting component to limit the movement of the connecting component along the slide rail.

[0060] Specifically, the first limiting member 13 is a limiting end plate. After the lateral sliding base plate and the support base 11 are engaged, the limiting end plate can be welded to both ends of the lateral sliding base plate 8 to limit the movement of the support base relative to the lateral sliding base plate 8. In some examples, the support base is provided with steps to facilitate the setting of the first limiting member 13. The second limiting member 12 is a frame-shaped member. The second frame-shaped member is fixed to the periphery of the lateral sliding base plate 8. The second limiting member 12 is located on the periphery of the two slide rails. The height of the second limiting member on the side closer to the slide rail is higher than that on the other sides.

[0061] A working method for a multi-directional sliding vibration isolation bearing for transmission towers includes the following:

[0062] When the shaking direction of an earthquake is along the "left and right diagonal" direction, refer to Figure 4 As shown, when the ground moves to the left, due to inertia, the transmission tower tends to stay in place, meaning the ground "wants" to move the transmission tower to the left. The transmission tower is subjected to a force to the left, which is gradually transmitted upwards along the tower. The lower part of the transmission tower is first affected by the ground and moves to the left, which then drives the upper part of the transmission tower to move to the left. In other words, the tendency of the transmission tower to move to the left is influenced by inertia and has a certain sequence. This is also the main reason why transmission towers are damaged in earthquakes.

[0063] The device provided in this embodiment utilizes the inertia during an earthquake. When the ground moves to the left, the lower part of the transmission tower, connected to the foundation, remains stationary due to inertia. At this time, the slide rail 6 and its lower part of foundation A move to the left with the ground, while the sliding ring 5 and its upper part move to the right relative to the transmission tower. Due to the relative movement of the slide rail 6 and the sliding ring 5, the sliding ring 5 rises along the slide rail 6, causing one leg of the transmission tower to rise in height, which is equivalent to an increase in the height of foundation A or a rise in the ground at foundation A. Simultaneously, foundation D undergoes a similar change, but when the sliding ring 5 of foundation D slides along the slide rail 6, the slide rail curvature is gentle, and there is no change in height. At the same time, foundations B and C are also affected by the ground. The ground causes the support seat 11 to move and the lateral sliding base plate 8 to produce relative displacement, which also does not cause a change in height. Thus, the change in the height of foundation A causes the transmission tower to tilt at a certain angle, which helps to counteract the tendency of the upper part of the transmission tower to be pulled to the left, reduces the swaying amplitude of the tower body, and reduces the impact of earthquakes on the transmission tower. The same principle applies when the shaking direction of an earthquake is along the "vertical and horizontal diagonal" direction.

[0064] When the shaking direction of an earthquake is not along the diagonal direction, refer to Figure 5 As shown, the principle is similar, except that the basic displacement form is no longer singular, but a combination of the two forms mentioned above. Projecting along the direction of the seismic sway, the principle is as follows:

[0065] When the ground moves to the left, the sliding ring 5 at the leftmost foundation A moves relative to the slide rail 6 after projection, resulting in the greatest foundation heave. This is followed by foundation B, then foundation C, with foundation D experiencing the smallest heave. Due to the different heave heights, the transmission tower develops a certain tilt angle, reducing the impact of the earthquake on the tower. The direction of the seismic sway is not along the diagonal. The sway displacement is decomposed along the diagonal and perpendicular diagonal directions. For foundation A, the displacement component along the diagonal direction causes the relative displacement of the sliding ring 5 and slide rail 6, while the displacement component perpendicular to the displacement direction causes the relative displacement of the support 11 and the lateral sliding base plate 8. The influence along the diagonal direction is dominant, meaning the foundation heave is the greatest. The situation is similar for foundations at other locations, and will not be elaborated here.

[0066] For vertical seismic sway with relatively small impact, the damping component 10 weakens it. While the damping component 10 weakens the vibration, it does not affect the lateral displacement function of the lateral displacement balance damping component.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-directional sliding vibration damping and isolation bearing for transmission towers, characterized in that, include: Lateral displacement balancing damping assembly includes a support base, which can be installed on the foundation and supports the damping component; The slide rail assembly is snapped together with the support base. The shock-absorbing component is located between the slide rail assembly and the support base. The shock-absorbing component can slide in the X direction relative to both the slide rail assembly and the support base. The slide rail assembly includes a slide rail, and the height of the sliding surface of the slide rail relative to the foundation is variable. The connecting component has one side connected to the pole body in the transmission tower, and the other side of the connecting component cooperates with the slide rail and can slide along the slide rail. During the process of the connecting component sliding along the slide rail, the pole body can move in the Y and Z directions.

2. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 1, characterized in that, Multi-directional sliding vibration isolation bearings are installed at the bottom of each pole of the transmission tower located on the diagonal, and the multi-directional sliding vibration isolation bearings on the diagonal are arranged opposite each other.

3. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 1, characterized in that, The slide rail assembly is provided with an open support groove, the top side of the support seat is inserted into the support groove in the Y direction, and the shock-absorbing component is located on the top side of the support seat.

4. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 1, characterized in that, The slide rail assembly includes a lateral sliding base plate, which is slidably connected to the support base. The lateral sliding base plate supports the slide rail, and the height of the slide rail relative to the lateral sliding base plate gradually increases. At least two sets of slide rails are provided, and the distance between the two sets of slide rails is set.

5. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 4, characterized in that, The lateral sliding base plate supports the slide rail via a slide rail support member. The direction of the slide rail is perpendicular to the direction of movement of the slide rail assembly relative to the support base. The width of the slide rail is greater than the width of the sliding support member. The slide rail is an arc-shaped slide rail and protrudes from the higher side of the lateral sliding base plate, located near the center of the transmission tower.

6. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 1, characterized in that, The connecting component includes a sliding ring that can slide along the slide rail. One side of the sliding ring is open, the width of the open part of the sliding ring is smaller than the width of the slide rail, the length of the sliding ring is greater than the width of the slide rail, and the width of the sliding ring is greater than the thickness of the slide rail.

7. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 6, characterized in that, The connecting assembly also includes a connecting reversing base plate, one side of which is connected to the sliding ring, and the other side of which is hinged to the pole body in the transmission tower.

8. A multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 1, characterized in that, The slide rail assembly has a first limiting member on the side facing the support base to limit the movement of the slide rail assembly; The slide rail assembly has a second limiting member on the side that mates with the connecting assembly to limit the movement of the connecting assembly along the slide rail.

9. The working method of a multi-directional sliding vibration damping and isolation bearing for transmission towers according to claim 2, characterized in that, Includes the following: When the shaking direction of an earthquake is along the diagonal direction of the transmission tower, the transmission tower tends to move. The connecting component of one of the multi-directional sliding damping and isolation bearings located in the direction of the earthquake shaking gradually rises along the slide rail, causing the corresponding rod to gradually increase in height relative to the support seat. The connecting component of another multi-directional sliding damping and isolation bearing located in the direction of the earthquake shaking gradually decreases in height along its slide rail. This causes the transmission tower to tilt at an angle, counteracting the tendency of the transmission tower to move. In a multi-directional sliding seismic isolation bearing located in a direction other than the seismic sway, the sliding rail assembly moves relative to the support seat, absorbing seismic energy in the X direction through the damping components.

10. The working method of a multi-directional sliding vibration damping and isolation bearing for a transmission tower according to claim 9, characterized in that, Includes the following: When the shaking direction of an earthquake is not diagonal to the transmission tower, when projected along the diagonal of the transmission tower, the connecting components in the two multi-directional sliding damping and isolation bearings on one diagonal move in opposite directions relative to the corresponding slide rail components, causing the transmission tower to tilt at an angle, thus counteracting the tendency of the transmission tower to be driven to move. The two multi-directional sliding damping and isolation bearings on the other diagonal absorb the X-direction seismic energy through the damping components.

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