Multidirectional sliding seismic mitigation and isolation support for power transmission tower and working method of multidirectional sliding seismic mitigation and isolation support

Abstract

The invention discloses a multidirectional sliding seismic mitigation and isolation support for a power transmission tower and a working method, solves the problem of poor anti-seismic performance of a foundation of the power transmission tower in the prior art, and has the beneficial effect of improving the anti-seismic capacity of the foundation of the power transmission tower. Comprising a supporting seat, the supporting seat can be installed on a foundation, and the supporting seat supports a damping component; the sliding rail assembly is connected with the supporting base in a clamped mode, the damping component is located between the sliding rail assembly and the supporting base, the damping component can slide in the X direction relative to the sliding rail assembly and the supporting base, the sliding rail assembly comprises a sliding rail, and the height of the sliding face of the sliding rail relative to a foundation is variable; and one side of the connecting assembly is connected with a pole body in the power transmission tower, and the other side of the connecting assembly is matched with the sliding rail.

Description

Technical Field

[0001] The invention relates to the technical field of seismic resistance of assembled structures, in particular to a multi-directional sliding seismic isolation support for a transmission tower and a working method thereof. Background Art

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

[0003] Transmission tower construction has developed rapidly, with a huge scale, focusing on promoting ultra-high voltage transmission technology to improve energy transmission efficiency and coverage. However, the construction process is complex, facing challenges such as high cost, long construction period, and high labor intensity, and it is necessary to continuously improve earthquake and disaster resistance. Some transmission towers often cross earthquake-prone areas. In recent years, many strong earthquakes have occurred around the world, all of which have caused damage to transmission towers and lines, affecting the stability and post-disaster recovery of the power system. As the height and span of the transmission tower body continue to increase, the threat of earthquakes to its safe operation is becoming increasingly serious. Therefore, improving the seismic resistance of transmission towers is crucial to protecting the safety of the power grid and reducing the damage caused by earthquakes.

[0004] Traditional transmission tower shock reduction measures mainly rely on the use of shock absorbers, dampers and other means to buffer vibrations, thereby enhancing the shock absorption performance of the structure. However, in the face of extremely large earthquakes with higher magnitudes, the shock absorption effect of these measures is limited, and it is difficult to effectively resist the extreme impacts of strong earthquakes. In particular, the foundations of traditional transmission towers are usually not included in the shock absorption design, which makes them lack the ability to absorb shocks and resist disasters in the face of complex earthquake environments. These traditional foundations often cannot meet the high standards for the seismic resistance of power infrastructure in rapid development, and new solutions are urgently needed to improve their seismic resistance and overall resilience. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a multi-directional sliding seismic isolation bearing for a transmission tower, which can significantly reduce the vibration amplitude of the transmission tower in all directions under the action of an earthquake, thereby improving the safety and reliability of the entire transmission tower system.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A multi-directional sliding seismic isolation bearing for a transmission tower, comprising:

[0008] The lateral displacement balancing shock absorbing assembly comprises a support seat, the support seat can be installed on the foundation, and the support seat supports the shock absorbing component;

[0009] The slide rail assembly is connected with the support seat by clamping, the damping component is located between the slide rail assembly and the support seat, the damping component can slide in the X direction relative to the slide rail assembly and the support seat, 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] A connecting component, one side of which is connected to the rod body in the transmission tower, and the other side of which cooperates with the slide rail and can slide along the slide rail. When the connecting component slides along the slide rail, the rod body can move in the Y and Z directions.

[0011] As described above, a multi-directional sliding seismic isolation bearing for a transmission tower is provided with a multi-directional sliding seismic isolation bearing at the bottom of each pole body of the transmission tower located on the diagonal line, and the multi-directional sliding seismic isolation bearings on the diagonal line are arranged opposite to each other.

[0012] As described above, in a multi-directional sliding shock-absorbing and isolating support for a transmission tower, 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.

[0013] As described above, a multi-directional sliding seismic isolation bearing for a transmission tower, the sliding rail assembly includes a lateral sliding base plate, the lateral sliding base plate is slidably connected to the support seat, the lateral sliding base plate supports the sliding rail, the height of the sliding rail relative to the lateral sliding base plate gradually increases, and at least two groups of sliding rails are provided.

[0014] As described above, in a multi-directional sliding seismic isolation bearing for a transmission tower, the lateral sliding base plate supports the sliding rail through a sliding rail support member, the setting direction of the sliding rail is perpendicular to the movement direction of the sliding component relative to the support seat, the width of the sliding rail is greater than the width of the sliding support member, the sliding rail is an arc-shaped sliding rail, and the sliding rail protrudes from the higher side of the lateral sliding base plate and is arranged close to the center of the transmission tower.

[0015] As described above, a multi-directional sliding seismic isolation bearing for a transmission tower, the connecting assembly includes a sliding ring, the sliding ring can slide along the sliding rail, one side of the sliding ring is open, the width of the sliding ring at the open end is smaller than the width of the sliding rail, the length of the sliding ring is greater than the width of the sliding rail, and the width of the sliding ring is greater than the thickness of the sliding rail.

[0016] As described above, a multi-directional sliding seismic isolation bearing for a transmission tower, the connecting assembly also includes 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 hingedly connected to the rod body in the transmission tower.

[0017] In the multi-directional sliding seismic isolation support for a transmission tower as described above, the slide rail assembly is provided with a first limiting member on a side facing the support member to limit the movement of the slide rail assembly;

[0018] The slide rail assembly is provided with a second limiting member on one side cooperating with the connecting assembly so as 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 of a multi-directional sliding seismic isolation bearing for a transmission tower, comprising the following contents:

[0020] When the shaking direction of the earthquake is along the diagonal direction of the transmission tower, the transmission tower has a tendency to be driven to move, and the connection component of one of the multi-directional sliding seismic isolation bearings located in the direction of the earthquake shaking gradually climbs along the slide rail, so that the height of the corresponding rod body relative to the support seat is gradually raised, and the connection component of another multi-directional sliding seismic isolation bearing located in the direction of the earthquake shaking gradually decreases along its slide rail, so that the transmission tower has a tilt angle, offsetting the tendency of the transmission tower to be driven to move;

[0021] The slide rail assembly in the multi-directional sliding shock-isolating bearing located in the non-seismic shaking direction moves relative to the support seat, and the X-direction seismic energy is absorbed by the shock-absorbing component.

[0022] The working method of the multi-directional sliding seismic isolation bearing for a transmission tower as described above includes the following contents:

[0023] When the shaking direction of the earthquake is not the diagonal direction of the transmission tower, it is projected along the diagonal direction of the transmission tower. The connecting components in the two multi-directional sliding seismic isolation bearings on one diagonal line move in the opposite direction relative to the corresponding slide rail components, so that the transmission tower has a tilt angle, offsetting the tendency of the transmission tower to be driven to move. The two multi-directional sliding seismic isolation bearings on the other diagonal line absorb the X-direction earthquake energy through the shock-absorbing components.

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

[0025] 1) The present invention is provided with a multi-directional sliding shock-absorbing and isolating bearing. The connecting assembly 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 is variable, the connecting assembly drives the rod body to move in the Y and Z directions during the sliding process along the slide rail. The lateral balancing shock-absorbing assembly supports the slide rail assembly. Moreover, when the slide rail assembly is clamped with respect to the support seat, the shock-absorbing component can also slide in the X direction relative to the slide rail assembly and the support seat. In this way, shock absorption can be performed by the shock-absorbing component, ensuring that the shock-absorbing component can fully play its role, significantly reducing the vibration amplitude of the transmission tower line system in all directions under the action of an earthquake, and improving the stability and reliability of the transmission tower. Because the connecting assembly is slidably connected to the slide rail, the slide rail assembly is clamped with respect to the support seat and can slide, so that the whole is detachable and can be replaced after the whole is damaged.

[0026] 2) In the present invention, the multi-directional sliding seismic isolation bearings are arranged on the diagonal lines of the transmission tower, and the multi-directional sliding seismic isolation bearings on the diagonal lines are arranged opposite to each other. In this way, when an earthquake occurs, the movement of the ground with the earthquake and the inertia of the transmission tower are utilized, and the movement directions of the connecting components in the two multi-directional sliding seismic isolation bearings on the diagonal lines along the slide rails are opposite, so that the transmission tower can be tilted to reduce the vibration amplitude of the transmission tower, improve the overall seismic toughness, and weaken the destructive power of the earthquake on the transmission tower.

[0027] 3) The present invention uses an arc-shaped slide rail to enable the entire support to adapt to different earthquake magnitudes and complex environments, mainly to cope with horizontal vibrations (Y direction) with stronger destructive power, and to provide a certain buffering effect for vertical vibrations (Z direction), so that the whole has a high degree of adjustability and adaptability, and can be adjusted and optimized according to different earthquake intensities and geological conditions, thereby providing the best earthquake-resistant effect in different environments.

[0028] 4) The present invention converts the inertia generated by earthquakes into a beneficial effect on transmission towers, thereby reducing destructiveness. At the same time, its adjustable slide rail design can adapt to different earthquake magnitudes and complex environments, mainly targeting strong horizontal vibrations and providing buffering for vertical vibrations, effectively reducing the vibration amplitude of the transmission tower in all directions caused by the earthquake, suppressing the vibration of the transmission tower, thereby enhancing the safety and reliability of the overall transmission system.

[0029] 5) The present invention significantly shortens construction time and reduces costs through factory production and rapid on-site installation, which not only improves the seismic resilience of the transmission tower system, but also lays a solid foundation for the long-term stable operation of the power infrastructure, ensuring stability and construction convenience under various construction conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

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

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

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

[0034] Figure 4The present invention is a schematic diagram of the positions of the multi-directional sliding vibration-isolating bearings for a transmission tower according to one or more embodiments of the present invention. Figure 1 .

[0035] Figure 5 The present invention is a schematic diagram of the positions of the multi-directional sliding vibration-isolating bearings for a transmission tower according to one or more embodiments of the present invention. Figure 2 .

[0036] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0037] Wherein: 1. rod body, 2. bottom plate, 3. connecting piece, 4. sliding ring connecting piece, 5. sliding ring, 6. sliding rail, 7. sliding rail supporting piece, 8. lateral sliding bottom plate, 9. connecting bolt, 10. shock absorbing component, 11. supporting seat, 12. second limiting piece, 13. first limiting piece. DETAILED DESCRIPTION

[0038] It should be noted that the following detailed descriptions are illustrative and 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 meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0040] As introduced in the background technology, the transmission tower in the prior art has the problem of poor foundation seismic performance. In order to solve the above technical problem, the present invention proposes a multi-directional sliding seismic isolation bearing for the transmission tower.

[0041] In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 As shown, a multi-directional sliding seismic isolation bearing for a transmission tower comprises:

[0042] The lateral displacement balancing shock absorbing assembly comprises a support seat, the support seat can be installed on the foundation, and the support seat supports the shock absorbing component;

[0043] The slide rail assembly is connected with the support seat by snapping, the damping component is located between the slide rail assembly and the support seat, the damping component can slide in the X direction relative to the slide rail assembly and the support seat, the slide rail assembly includes a slide rail 6, and the slope of the sliding surface of the slide rail 6 is variable;

[0044] A connecting component, one side of which is connected to the rod body 1 in the transmission tower, and the other side of which cooperates with the slide rail 6 and can slide along the slide rail 6. During the sliding process of the connecting component along the slide rail, the rod body 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 to form a whole through the sliding ring connector 4, and can be integrally cast with steel to facilitate on-site assembly and improve construction efficiency.

[0046] The sliding ring 5 is provided with an open side to cooperate with the sliding rail 6, and the sliding ring 5 includes a connecting section, both ends of the connecting section 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 connection reversing base plate includes a base plate 2 and a connecting member 3. The connecting member 3 is hingedly connected to the rod body 1 through a pin shaft, and the relative angle rotation problem is solved.

[0048] In this embodiment, the side of the bottom plate 2 away from the connecting member 3 is connected to two sliding ring connecting members 4, the sliding ring connecting members are specifically plate-shaped, and the sliding ring connecting members are connected to the connecting sections 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 bottom plate 8, which are connected as a whole and can also be integrally cast with steel. The slide rail is an arc-shaped slide rail, and the distance between the slide rail and the lateral sliding bottom plate 8 gradually increases, so that the whole has a high degree of adjustability and adaptability;

[0050] Moreover, the setting direction of the slide rail is perpendicular to the movement direction of the slide assembly relative to the support seat, the slide rail has a set width, the surface of the slide rail 6 is attached 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 slide ring 5, the width of the slide ring at the open end is smaller than the width of the slide rail, the length of the slide ring 5 is greater than the width of the slide rail 6, and the width of the slide ring is greater than the thickness of the slide rail 6;

[0051] The connecting assembly and the slide rail assembly are mechanically connected through the 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 of the slide rail. The width of the slide rail cooperates with the bent end of the sliding ring to prevent the sliding ring from detaching from the slide rail 6.

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

[0053] refer to Figure 3 As shown, the lateral shift balancing shock absorbing assembly includes a shock absorbing component 10 and a support seat 11. The lateral sliding base plate 8 and the support seat 11 are mutually clamped by the support legs to ensure that the lateral shift balancing shock absorbing assembly can only move in one direction without affecting the shock absorbing effect of the lateral shift balancing shock absorbing assembly; the shock absorbing component is located between the support seat 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, and the end and the bottom of the support groove are both open. An ear is provided on the top of the support seat 11 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. A recess is provided on the top of the support seat, and the recess is an arc-shaped recess. The support seat supports the shock-absorbing component 10 through the recess. The upper surface of the shock-absorbing component 10 is a plane, and the lower surface of the shock-absorbing component 10 is an arc-shaped surface. In this way, the longitudinal cross-section of the shock-absorbing component can be semicircular, and the length of the shock-absorbing component is compatible with the length of the recess at the top of the support seat.

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

[0056] It is easy to understand that the lateral sliding base plate 8 and the shock absorbing component 10, the shock absorbing component 10 and the support seat 11, and the lateral sliding base plate 8 and the support seat 11 are all matched through sliding surfaces, and each sliding surface is a polytetrafluoroethylene sliding surface;

[0057] In this embodiment, bolt holes are provided on the lateral sliding base plate 8, and the connecting bolts 9 pass through the bolt holes to connect the support seat 11 to the foundation, thereby improving the installation efficiency; the production and assembly of the foundation can be completed in the factory, realizing assembly line work.

[0058] Among them, there is no rigid requirement for the material of the shock-absorbing component 10, and it can be flexibly selected according to actual conditions, and rubber material can be selected; the foundation can connect the support seat 11 to the foundation through connecting bolts 9 to improve installation efficiency; the production and assembly of the foundation can be completed in the factory to realize assembly line work.

[0059] In addition, the slide rail assembly is provided with a first limiter 13 on the side facing the support member to limit the movement of the slide rail assembly; the slide rail assembly is provided with a second limiter 12 on the side cooperating with the connection assembly to limit the movement of the connection assembly along the slide rail;

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

[0061] A working method of a multi-directional sliding seismic isolation bearing for a transmission tower, comprising the following contents:

[0062] When the shaking direction of the earthquake is along the "left and right diagonal" direction, refer to Figure 4 As shown in the figure, when the ground moves to the left, due to the effect of inertia, the transmission tower tends to stay in place, that is, the ground "wants" to drive the transmission tower to move to the left; the transmission tower is subjected to a force to the left, and the force is gradually transmitted upward along the transmission tower. The lower part of the transmission tower is first affected by the ground and moves to the left, and then drives the upper part of the transmission tower to move to the left. That is, the tendency of the transmission tower to move to the left is affected by inertia in a certain order, which is also the main reason why the transmission tower is damaged in an earthquake.

[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 stays in place due to inertia. At this time, the slide rail 6 of the foundation A and its lower part move to the left with the ground, and the slide ring 5 and its upper part move to the right relatively with the transmission tower. Due to the relative movement of the slide rail 6 and the slide ring 5, the slide ring 5 climbs along the slide rail 6, driving the height of the transmission tower to rise by one foot, which is equivalent to the increase in the height of the foundation A or the increase in the foundation at the foundation A. At the same time, similar changes also occur in the foundation D, but when the slide ring 5 of the foundation D slides along the slide rail 6, the curvature of the slide rail is gentle and no height change occurs. At the same time, the foundation B and the foundation C are also affected by the foundation, and the ground drives the support seat 11 to move and produce relative displacement with the lateral sliding bottom plate 8, which also does not produce a height change. As a result, the height of the foundation A changes, and the transmission tower has a certain tilt angle, which is conducive to offsetting the tendency of the upper part of the transmission tower to be driven to the left, reducing the shaking amplitude of the tower body, and reducing the impact of the earthquake on the transmission tower. The same is true when the shaking direction of an earthquake is along the "up and down diagonal" direction.

[0064] When the shaking direction of the earthquake is not along the diagonal direction, refer to Figure 5 As shown, the principle is similar, but the displacement form of the foundation is no longer single, but a combination of the above two forms. Projecting along the direction of earthquake shaking, the principle is as follows:

[0065] When the ground moves to the left, the sliding ring 5 at the foundation A on the leftmost side after projection moves relative to the sliding rail 6, and the foundation is lifted to the greatest extent, followed by foundation B, and then foundation C. The foundation D has the smallest lifting amplitude. Due to the different lifting heights, the transmission tower has a certain tilt angle, reducing the impact of the earthquake on the transmission tower. The direction of the earthquake shaking is not along the diagonal direction, and the shaking 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 the sliding rail 6, and the displacement component perpendicular to the displacement direction causes the relative displacement of the support seat 11 and the lateral sliding base plate 8, and the impact along the diagonal direction is dominant, that is, the foundation lifting height is the largest. The foundation conditions at other positions are similar and will not be repeated here.

[0066] The vertical earthquake shaking with relatively small impact is weakened by the shock absorbing component 10. While the shock absorbing component 10 weakens the vibration impact, it will not affect the lateral displacement function of the lateral displacement balancing shock absorbing assembly.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-directional sliding seismic isolation bearing for a transmission tower, characterized in that: include: The lateral displacement balancing shock absorbing assembly comprises a support seat, the support seat can be installed on the foundation, and the support seat supports the shock absorbing component; The slide rail assembly is connected with the support seat by clamping, the damping component is located between the slide rail assembly and the support seat, the damping component can slide in the X direction relative to the slide rail assembly and the support seat, 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; A connecting component, one side of which is connected to the rod body in the transmission tower, and the other side of which cooperates with the slide rail and can slide along the slide rail. When the connecting component slides along the slide rail, the rod body can move in the Y and Z directions.

2. The multi-directional sliding seismic isolation bearing for a transmission tower according to claim 1, characterized in that: The bottom of each pole body of the transmission tower located on the diagonal line is provided with a multi-directional sliding vibration reduction and isolation support, and the multi-directional sliding vibration reduction and isolation supports on the diagonal line are arranged opposite to each other.

3. The multi-directional sliding seismic isolation bearing for a transmission tower 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. The multi-directional sliding seismic isolation bearing for a transmission tower according to claim 1, characterized in that: The slide rail assembly includes a lateral sliding base plate, which is slidably connected to the support seat, and the lateral sliding base plate supports the slide rail. The height of the slide rail relative to the lateral sliding base plate gradually increases. There are at least two groups of slide rails, and a distance is set between the two groups of slide rails.

5. The multi-directional sliding seismic isolation bearing for a transmission tower according to claim 4, characterized in that: The lateral sliding base plate supports the sliding rail through the sliding rail support member. The setting direction of the sliding rail is perpendicular to the movement direction of the sliding component relative to the support seat. The width of the sliding rail is greater than the width of the sliding support member. The sliding rail is an arc-shaped sliding rail. The sliding rail protrudes from the higher side of the lateral sliding base plate and is set close to the center of the transmission tower.

6. The multi-directional sliding seismic isolation bearing for a transmission tower according to claim 1, characterized in that: The connecting assembly includes a sliding ring, which 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. The multi-directional sliding seismic isolation bearing for a transmission tower according to claim 6, characterized in that: The connection 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 hingedly connected to a rod body in the transmission tower.

8. The multi-directional sliding seismic isolation bearing for a transmission tower according to claim 1, characterized in that: The slide rail assembly is provided with a first limiting member on a side facing the support member to limit the movement of the slide rail assembly; The slide rail assembly is provided with a second limiting member on one side cooperating with the connecting assembly so as to limit the movement of the connecting assembly along the slide rail.

9. A method for operating a multi-directional sliding seismic isolation bearing for a transmission tower according to claim 2, characterized in that: It includes the following: When the shaking direction of the earthquake is along the diagonal direction of the transmission tower, the transmission tower has a tendency to be driven to move, and the connection component of one of the multi-directional sliding seismic isolation bearings located in the direction of the earthquake shaking gradually climbs along the slide rail, so that the height of the corresponding rod body relative to the support seat is gradually raised, and the connection component of another multi-directional sliding seismic isolation bearing located in the direction of the earthquake shaking gradually decreases along its slide rail, so that the transmission tower has a tilt angle, offsetting the tendency of the transmission tower to be driven to move; The slide rail assembly in the multi-directional sliding shock-isolating bearing located in the non-seismic shaking direction moves relative to the support seat, and the X-direction seismic energy is absorbed by the shock-absorbing component.

10. A working method of a multi-directional sliding seismic isolation bearing for a transmission tower according to claim 9, characterized in that: It includes the following: When the shaking direction of the earthquake is not the diagonal direction of the transmission tower, it is projected along the diagonal direction of the transmission tower. The connecting components in the two multi-directional sliding seismic isolation bearings on one diagonal line move in the opposite direction relative to the corresponding slide rail components, so that the transmission tower has a tilt angle, offsetting the tendency of the transmission tower to be driven to move. The two multi-directional sliding seismic isolation bearings on the other diagonal line absorb the X-direction earthquake energy through the shock-absorbing components.

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