Power transmission tower with tower footing self-resetting function

Abstract

The invention provides a power transmission tower with a tower footing self-resetting function, and relates to the technical field of power transmission towers, the power transmission tower with the tower footing self-resetting function comprises a tower body, a tower body, a tower footing and an anti-seismic mechanism which are sequentially connected in the height direction, and the anti-seismic mechanism comprises an anti-seismic device; the anti-seismic device comprises a fixing plate, a traction cable assembly, an annular support assembly, a balance weight ball and a damping plate. The fixing plate is fixedly installed at the joint of the tower body and the tower footing. The top end of the traction cable assembly is fixedly connected with the fixing plate. The annular support assembly is fixedly connected with the bottom end of the traction cable assembly. The annular support assembly is provided with a containing cavity. A part of the counterweight ball is positioned in the accommodating cavity; the damping plate is provided with a damping groove, the diameter of the damping groove is larger than that of the balance weight ball, and the balance weight ball is partially located in the damping groove and used for moving in the damping groove. The tower body can be reset as soon as possible when subjected to external wind load and earthquake action, and safe operation of the power transmission tower is ensured.

Description

Technical Field

[0001] This invention relates to the field of power transmission tower technology, and more specifically, to a power transmission tower with a self-resetting tower base. Background Technology

[0002] In the field of seismic resistance technology for civil engineering structures, the tower foundation of a transmission tower, as a key load-bearing structure for transmission lines, plays an important role in transferring the tower load to the foundation and maintaining the tower's uprightness and structural integrity.

[0003] In related technologies, the tower body and tower base structure are mostly rigidly fixed (such as precast piles and iron towers), which makes the tower body less adaptable to external wind loads and seismic action, and easily leads to tower deformation, bending, tilting or even collapse, thus affecting the safe operation of the transmission tower. Summary of the Invention

[0004] The problem solved by this invention is how to quickly reset the tower body under external wind loads and earthquakes, so as to ensure the safe operation of the transmission tower.

[0005] To address the aforementioned problems, this invention provides a transmission tower with a self-resetting tower base, comprising a tower body, a tower frame, and a tower base connected sequentially along its height, and further comprising an anti-seismic mechanism, wherein the anti-seismic mechanism includes an anti-seismic device, and the anti-seismic device includes: A fixing plate is fixedly installed at the connection between the tower body and the tower base; A traction cable assembly, the top end of which is fixedly connected to the fixing plate; A ring-shaped support assembly is fixedly connected to the bottom end of the traction cable assembly; the ring-shaped support assembly is provided with a receiving cavity. A counterweight ball, a portion of which is located within the receiving cavity; A damping plate is provided with a damping groove, the diameter of which is larger than the diameter of the counterweight ball, and part of the counterweight ball is located within the damping groove and is used to move within the damping groove.

[0006] Optionally, the seismic device further includes multiple damping components, which are distributed axially around the annular support assembly. The top and bottom ends of each damping component are respectively movably connected to the annular support assembly and the support legs of the tower base.

[0007] Optionally, the damping assembly includes a first connecting rod, a second connecting rod, a pressure joint, a fixing lock, and a damping structure. The two ends of the first connecting rod are rotatably connected to the outer edge of the annular support assembly and one end of the second connecting rod, respectively. The other end of the second connecting rod is rotatably connected to the fixing lock, which is sleeved on the support leg of the tower base. The pressure joint is installed between the two ends of the first connecting rod, and the two ends of the damping structure are rotatably connected to the pressure joint and the second connecting rod, respectively.

[0008] Optionally, the seismic resisting mechanism further includes an offset device, which includes an offset plate, multiple offset components, and multiple offset boxes. The offset plate is fixedly installed at the bottom of the damping plate. The multiple offset components and multiple offset boxes are respectively distributed in a ring at intervals around the axial direction of the offset plate. The offset components are movably installed between the offset plate and the offset boxes. The offset plate is used to drive the offset components to offset relative to the offset boxes.

[0009] Optionally, the offset assembly includes a tenon and a movable seat structure. The tenon is fixedly installed on the bottom of the offset plate. The offset box has a mounting cavity. The movable seat structure is embedded in the mounting cavity. The movable seat structure has a insertion hole. The tenon is inserted into the insertion hole. The movable seat structure is used to move within the mounting cavity.

[0010] Optionally, the movable seat structure includes a movable seat body, the mounting cavity includes a first mounting groove, the movable seat body is embedded in the first mounting groove, and the movable seat body is used to move within the first mounting groove.

[0011] Optionally, the movable seat structure further includes a rubber pad, which is fixedly connected to the bottom of the movable seat body; The mounting cavity further includes a second mounting groove, which is coaxially arranged with the first mounting groove and located below the first mounting groove. The diameter of the second mounting groove is larger than the diameter of the first mounting groove. The rubber pad is located in the second mounting groove and is used to move within the second mounting groove.

[0012] Optionally, the movable seat structure further includes a plurality of ball bearing structures, the inner bottom wall of the second mounting groove is provided with a groove, the plurality of ball bearing structures are located between the rubber pad and the groove, and the ball bearing structures are used to roll within the groove.

[0013] Optionally, the transmission tower with self-resetting tower base also includes an anti-sinking device, which includes a settling plate and multiple anti-sinking legs, with the multiple anti-sinking legs distributed axially around the settling plate. The anti-sinking support leg includes a rotating lock, a bearing structure, a deformation sleeve structure, and a screw structure. The top end of the rotating lock is rotatably connected to the settlement plate through the bearing structure. The deformation sleeve structure is fixedly connected to the bottom end of the rotating lock. The screw structure passes through the deformation sleeve structure and the rotating lock. The rotating lock is threadedly connected to the screw structure. The bottom end of the screw structure passes through the deformation sleeve structure and inserts into the foundation soil layer. The bending node of the deformation sleeve structure is used to bend outward during the downward movement of the tower base, the settlement plate, and the rotating lock.

[0014] Optionally, the anti-sinking outrigger further includes an anti-buoyancy rotating sleeve and an anti-buoyancy component. The anti-buoyancy rotating sleeve is connected to the bottom end of the deformation sleeve structure, and the anti-buoyancy component is embedded in the anti-buoyancy rotating sleeve. The bottom end of the screw structure passes through the anti-buoyancy rotating sleeve and is inserted into the foundation soil layer. The bending node of the deformation sleeve structure is also used to bend inward during the process of the buoyancy of the groundwater pushing the anti-buoyancy rotating sleeve upward.

[0015] The beneficial effects of the transmission tower with self-resetting tower base of the present invention are: A fixed plate is installed between the tower body and the tower base as a connection interface, transforming the connection from a "point-to-point rigid connection" to an "interface connection." This provides a stable installation foundation for subsequent seismic-resistant mechanisms, initially disperses local stresses transmitted to the tower base, enhances the integrity and load distribution capacity of the connection between the tower body and the tower base, and avoids stress concentration. The top and bottom ends of the traction cable assembly are connected to the fixed plate and the ring support assembly, respectively. During earthquakes or wind-induced swaying, when the tower body moves along with the fixed plate, the traction cable assembly can absorb some kinetic energy through its own tension and oscillation, allowing the tower body to displace within a certain range, rather than being completely rigidly constrained. The counterweight ball is partially housed within the cavity of the ring support assembly, which converts the tension transmitted by the traction cable assembly into constraint and guidance for the counterweight ball.

[0016] When external wind loads or earthquakes act on the tower and are transmitted to the tower body, causing the tower body to bend or shift, the fixed plate, which is fixedly connected to the tower body and the tower base, is simultaneously subjected to force. The traction cable assembly pulls the ring support assembly below. The counterweight ball inside the housing of the ring support assembly generates a reaction force opposite to the direction of the tower body's shift due to its own weight. This can directly offset part of the external force, initially weaken the tower body's shift amplitude, and thus weaken the impact of wind loads or earthquakes on the tower body and the tower base.

[0017] Furthermore, since part of the counterweight ball is located within the damping groove, and the diameter of the damping groove is larger than the diameter of the counterweight ball, the larger diameter damping groove provides sufficient space for the smaller counterweight ball to move, preventing it from getting stuck. When the counterweight ball moves within the damping groove, the damping groove can guide the movement of the counterweight ball. During the movement, the counterweight ball rubs and collides with the inner wall of the damping groove, thereby enhancing the damping effect on the counterweight ball. After the collision, the counterweight ball tends to return to its original position under its own weight and the restoring force of the traction cable assembly, promoting the tower body to reset as soon as possible, thus ensuring the safe operation of the transmission tower. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a transmission tower with self-resetting tower base in an embodiment of the present invention; Figure 2 This is an exploded structural diagram of a transmission tower with self-resetting tower base in an embodiment of the present invention; Figure 3 This is one of the exploded structural diagrams of the earthquake-resistant device in an embodiment of the present invention; Figure 4 This is the second schematic diagram of the exploded structure of the earthquake-resistant device in an embodiment of the present invention; Figure 5 This is a schematic diagram of the damping component in an embodiment of the present invention; Figure 6 This is one of the exploded structural diagrams of the offset device in an embodiment of the present invention; Figure 7 This is the second exploded structural diagram of the offset device in an embodiment of the present invention; Figure 8 This is a schematic diagram of the vertical cross-sectional structure of the offset box in an embodiment of the present invention; Figure 9 This is a schematic diagram of the exploded structure of the anti-sinking and floating device in an embodiment of the present invention; Figure 10 This is a schematic diagram of the explosion structure of the anti-sinking and floating support leg in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100-Tower body; 200-Tower frame; 300-Tower base; 400-Seismic resisting device; 410-Fixing plate; 420-Traction cable assembly; 430-Ring bracket assembly; 431-Support frame; 432-Traction ring; 440-Counterweight ball; 450-Damping plate; 451-Damping groove; 460-Damping assembly; 461-First connecting rod; 462-Second connecting rod; 463-Crimp joint; 464-Fixing lock; 465-Damping structure; 500-Offset device; 510-Offset plate; 520-Offset assembly; 521-Dovetail; 522-Moving seat body; 523-Rubber pad; 524-Ball bearing structure; 525-Damping block; 530-Offset box; 531-First mounting slot; 532-Second mounting slot; 600-Anti-floating device; 610-Settling plate; 620-Anti-floating support leg; 621-Bearing structure; 622-Rotating lock; 623-Deformation sleeve structure; 6231-First support ring; 6232-Bent support arm; 6233-Second support ring; 624-Screw structure; 625-Anti-floating rotating bushing. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] like Figures 1 to 4As shown in the figure, an embodiment of the present invention provides a transmission tower with a self-resetting tower base, comprising a tower body 100, a tower body 200, and a tower base 300 connected sequentially along the height direction, and further comprising an anti-seismic mechanism, wherein the anti-seismic mechanism includes an anti-seismic device 400, the anti-seismic device 400 comprising: A fixing plate 410 is fixedly installed at the connection between the tower body 200 and the tower base 300; The top end of the traction cable assembly 420 is fixedly connected to the fixing plate 410; A ring-shaped support assembly 430 is fixedly connected to the bottom end of the traction cable assembly 420; the ring-shaped support assembly 430 is provided with a receiving cavity. A counterweight ball 440, a portion of which is located within the receiving cavity; A damping plate 450 is provided with a damping groove 451. The diameter of the damping groove 451 is larger than the diameter of the counterweight ball 440. A portion of the counterweight ball 440 is located within the damping groove 451 and is used to move within the damping groove 451.

[0024] Specifically, the inner wall of the damping groove 451 is provided with a low-friction coating, which matches the outer surface of the counterweight ball (44), thereby reducing the friction between the damping groove 451 and the counterweight ball 440. Accordingly, this ensures that the counterweight ball 440 can quickly respond to the movement in the opposite direction to the offset direction of the tower body 200 within the damping groove 451, which can quickly counteract the external force, thereby reducing the bending time and amplitude of the tower body 200 and allowing the tower body 200 to return to its original position as soon as possible.

[0025] The bottom of the tower body 200 and the top of the tower base 300 can be fixedly connected to the top surface of the fixing plate 410 and the ground by welding, bolt fasteners or other means.

[0026] The traction cable assembly 420 may include multiple traction rods, which may be distributed in a ring-shaped interval around the axial direction of the ring bracket assembly 430, thereby ensuring the uniformity of force transmission between the fixing plate 410 and the ring bracket assembly 430.

[0027] The diameter of the receiving cavity can be slightly larger than the diameter of the counterweight ball 440, so that the counterweight ball 440 can be smoothly inserted into the receiving cavity.

[0028] In this embodiment, a fixing plate 410 is provided between the tower body 200 and the tower base 300 as a connection interface. This transforms the connection between the tower body 200 and the tower base 300 from a "point-to-point rigid connection" to an "interface connection," providing a stable installation foundation for the subsequent seismic-resistant structure and initially dispersing the local stress transmitted to the tower base 300. This enhances the integrity and load distribution capacity of the connection between the tower body 200 and the tower base 300, preventing stress concentration. The top and bottom ends of the traction cable assembly 420 are connected to the fixing plate 410 and the annular support assembly 430, respectively. During earthquakes or wind-induced swaying, when the tower body 200 moves the fixing plate 410, the traction cable assembly 420 can absorb some kinetic energy through its own tension and swaying, allowing the tower body 200 to displace within a certain range, rather than being completely rigidly constrained. Part of the counterweight ball 440 is located within the receiving cavity of the annular support assembly 430. The annular support assembly 430 can convert the tension transmitted by the traction cable assembly 420 into a constraint and guide for the counterweight ball 440.

[0029] When external wind loads or earthquakes act on the tower body 100 and are transmitted to the tower body 200, causing the tower body 200 to bend or shift, the fixed plate 410, which is fixedly connected to the tower body 200 and the tower base 300, is simultaneously subjected to force. The traction cable assembly 420 pulls the ring support assembly 430 below. The counterweight ball 440 inside the receiving cavity of the ring support assembly 430 generates a reaction force opposite to the shift direction of the tower body 200 due to its own weight. This can directly offset part of the external force, initially weaken the shift amplitude of the tower body 200, and thus weaken the impact of wind loads or earthquakes on the tower body 200 and the tower base 300.

[0030] Furthermore, since part of the counterweight ball 440 is located within the damping groove 451, and the diameter of the damping groove 451 is larger than the diameter of the counterweight ball 440, the larger diameter damping groove 451 provides sufficient space for the smaller counterweight ball 440 to move, preventing it from getting stuck. When the counterweight ball 440 moves within the damping groove 451, the damping groove 451 can guide the movement of the counterweight ball 440. During the movement, the counterweight ball 440 rubs and collides with the inner wall of the damping groove 451, thereby enhancing the damping effect on the counterweight ball 440. After the collision, the counterweight ball 440 tends to return to its original position under its own weight and the restoring force of the traction cable assembly 420, promoting the tower body 200 to reset as soon as possible, thus ensuring the safe operation of the transmission tower.

[0031] Optionally, combined Figure 3 and Figure 4 As shown, the seismic device 400 also includes a plurality of damping components 460, which are distributed axially around the annular support assembly 430. The top and bottom ends of each damping component 460 are respectively movably connected to the annular support assembly 430 and the support leg of the tower base 300.

[0032] Specifically, in combination Figure 3 As shown, the annular support assembly 430 can adopt the following structure: the annular support assembly 430 includes a support frame 431 and a traction ring 432. Both the support frame 431 and the traction ring 432 are circular ring structures. The support frame 431 is fixedly connected to the bottom end of the traction cable assembly 420, and the bottom outer edge of the support frame 431 is fixedly connected to the top outer edge of the traction ring 432. The inner diameter of the traction ring 432 is larger than the outer diameter of the counterweight ball 440.

[0033] The top end of each damping component 460 is movably connected to the circumferential outer wall of the traction ring 432, and the bottom end of each damping component 460 is movably connected to the support leg of the tower base 300.

[0034] The number of damping components 460 matches the number of legs of the tower base 300. For example, if the number of legs of the tower base is four, then the number of damping components 460 is also four.

[0035] In this optional embodiment, the inner diameter of the traction ring 432 of the annular support assembly 430 is larger than the outer diameter of the counterweight ball 440. When the counterweight ball 440 moves, the traction ring 432 will exert a certain damping effect on the counterweight ball 440. The traction ring 432 on the outside of the support frame 431 is connected to the four legs of the tower base 300 through multiple damping components 460. When the tower body 200 deviates, the damping components 460 will generate a reverse damping force, which works together with the damping groove 451 to further weaken the excessive swaying of the counterweight ball 440 and prevent the counterweight ball 440 from continuously swinging due to inertia, which would exacerbate the deviation of the tower body 200.

[0036] Optionally, combined Figure 5 As shown, the damping assembly 460 includes a first connecting rod 461, a second connecting rod 462, a pressure joint 463, a fixing lock 464, and a damping structure 465. The two ends of the first connecting rod 461 are rotatably connected to the outer edge of the annular support assembly 430 and one end of the second connecting rod 462, respectively. The other end of the second connecting rod 462 is rotatably connected to the fixing lock 464, and the fixing lock 464 is sleeved on the support leg of the tower base 300. The pressure joint 463 is installed between the two ends of the first connecting rod 461, and the two ends of the damping structure 465 are rotatably connected to the pressure joint 463 and the second connecting rod 462, respectively.

[0037] Specifically, the top end of the first connecting rod 461 can be rotatably connected to the outer peripheral wall of the traction ring 432 of the annular bracket assembly 430 via the first hinge, the bottom end of the first connecting rod 461 can be rotatably connected to the top end of the second connecting rod 462 via the first pin, and the bottom end of the second connecting rod 462 can be rotatably connected to the fixing lock 464 via the second hinge; the pressure joint 463 can be installed between the two ends of the first connecting rod 461 via the second pin.

[0038] The damping structure 465 may include a hydraulic buffer and a return spring. The two ends of the hydraulic buffer may be rotatably connected to the corresponding pressure joint 463 and the second connecting rod 462 via a third pin and a fourth pin, respectively. The return spring may be sleeved on the hydraulic buffer, and the two axial ends of the return spring abut against the pressure joint 463 and the second connecting rod 462, respectively.

[0039] The end of the fixed lock 464 away from the second connecting rod 462 may have a retaining ring structure, which can be fitted onto the support leg of the tower base 300. The retaining ring structure may be a clamp structure to improve the ease of assembly and disassembly of the fixed lock 464 from the support leg of the tower base 300.

[0040] In this optional embodiment, earthquakes and wind cause the tower body 200 to swing, the traction ring 432 to generate horizontal displacement, the first link 461 moves with the traction ring 432 of the annular support assembly 430, and the crimp joint 463 on the first link 461 generates a complex trajectory movement; due to the triangular geometric relationship formed by the first link 461, the second link 462 and the damping structure 465, the relative displacement between the connection point of the crimp joint 463 and the second link 462 is amplified, the damping structure 465 is driven at high speed and with a large stroke, and energy is dissipated efficiently. The dissipated energy is directly transmitted to the support of the tower base 300 through the second link 462 and the fixing lock 464. After the vibration ends, the internal restoring force of the damping structure 465 (such as a return spring) and the constraints of the second link 462, the damping structure 465 and the crimp joint 463 work together to pull the traction ring 432 and the tower body 200 back to their original position smoothly and accurately through the crimp joint 463 and the first link 461.

[0041] Furthermore, the bottom end of the damping component 460 is movably connected to the support leg of the tower base 300, which allows for flexible adjustment of the connection angle between the damping component 460 and the support leg of the tower base 300. This ensures that the damping force can be adapted in real time to the offset direction of the tower body 200, ultimately achieving effective control over the offset and bending degree of the tower body 200 and the tower base 300.

[0042] Optionally, combined Figure 6 and Figure 7 As shown, the seismic-resistant mechanism further includes an offset device 500, which includes an offset plate 510, multiple offset components 520, and multiple offset boxes 530. The offset plate 510 is fixedly installed on the bottom of the damping plate 450. The multiple offset components 520 and multiple offset boxes 530 are respectively distributed in a ring-shaped interval around the axial direction of the offset plate 510. The offset components 520 are movably installed between the offset plate 510 and the offset boxes 530. The offset plate 510 is used to drive the offset components 520 to offset relative to the offset boxes 530.

[0043] Specifically, the offset plate 510 can be fixedly installed on the bottom of the damping plate 450 by means of adhesive bonding, welding or bolt fasteners.

[0044] The number of offset components 520 corresponds to the number of offset boxes 530, and the offset boxes 530 can be located directly below the offset components 520; the number of offset components 520 and offset boxes 530 can be four.

[0045] The offset component 520 is movably installed between the offset plate 510 and the offset box 530, so that the offset plate 510 can be offset relative to the offset box 530 by the offset component 520.

[0046] Multiple offset components 520 are arranged in a ring-shaped interval around the axial direction of the offset plate 510, and multiple offset boxes 530 are also arranged in a ring-shaped interval around the axial direction of the offset plate 510. The axial direction of the offset plate 510 may be parallel to or coincide with the axis of the transmission tower with self-resetting tower base.

[0047] In this optional embodiment, when a strong earthquake or wind causes the tower base 300 to shift laterally, the tower body 200 swings, the traction cable and the ring support assembly 430 move, and the counterweight ball 440 sways, collides, and rubs within the damping groove 451 (first-level energy dissipation). The damping assembly 460 is then driven to extend and retract via a geometrically amplified mechanism consisting of the pressure joint 463, the first connecting rod 461, and the second connecting rod 462 (second-level energy dissipation). The movement of the damping plate 450 causes the offset plate 510 at its bottom to move, which in turn drives multiple ring-distributed offset assemblies 520 to generate relative displacement within their respective offset boxes 530. This allows the offset assemblies 520 to overcome the resistance (friction, plasticity, viscosity) within the offset boxes 530, achieving third-level energy dissipation. When the load weakens, the restoring force of the seismic device 400 and the offset assemblies 520 of the offset device 500 work together to ensure the tower body 200 returns to its original position smoothly and accurately. In short, multi-level systems also avoid the problems of "freezing" or insufficient reset that may occur in single systems.

[0048] Furthermore, to prevent significant bending or displacement of the steel tower body 200 and tower base 300, the offset plate 510 is designed to drive the offset component 520 to undergo lateral displacement relative to the offset box 530, thus reserving a certain displacement space for the lateral displacement of the tower base 300. The multiple offset components 520 distributed in a ring achieve true omnidirectional seismic resistance and system redundancy, resulting in a qualitative improvement in seismic safety.

[0049] Optionally, combined Figure 7As shown, the offset assembly 520 includes a tenon 521 and a movable seat structure. The tenon 521 is fixedly installed on the bottom of the offset plate 510. The offset box 530 is provided with a mounting cavity. The movable seat structure is embedded in the mounting cavity. The movable seat structure is provided with a insertion hole. The tenon 521 is inserted into the insertion hole. The movable seat structure is used to move within the mounting cavity.

[0050] Specifically, the tenon 521 can be fixedly installed on the bottom of the offset plate 510 by welding or integral molding.

[0051] An installation cavity is provided in the upper part of the offset box 530, and the movable seat structure is embedded in the installation cavity from top to bottom.

[0052] The tenon 521 is matched and inserted into the insertion hole at the center of the movable base structure.

[0053] In this optional embodiment, when the earthquake intensity is high or strong winds cause the tower base 300 to undergo lateral displacement, the offset plate 510, which is fixedly connected to the damping plate 450 of the seismic device 400, is subjected to force synchronously with the tower base 300. The tenon 521 at the bottom of the offset plate 510 is inserted into the movable seat structure, which will directly drive the movable seat structure to slide in the mounting cavity inside the offset box 530. The mounting cavity can dampen the movement of the movable seat structure, thereby weakening the external force and allowing the tower body 200 and the tower base 300 to return to their original positions as soon as possible.

[0054] Optionally, combined Figure 7 and Figure 8 As shown, the movable seat structure includes a movable seat body 522, the mounting cavity includes a first mounting groove 531, the movable seat body 522 is embedded in the first mounting groove 531, and the movable seat body 522 is used to move within the first mounting groove 531.

[0055] Specifically, the offset box 530 may have a certain thickness, and a first mounting groove 531 may be opened above the center point of the offset box 530. The movable seat body 522 may be a cylinder, and the end area of ​​the movable seat body 522 may be smaller than the area of ​​the first mounting groove 531. The shape of the movable seat body 522 matches the shape of the first mounting groove 531, thereby reducing the wear degree between the movable seat body 522 and the first mounting groove 531.

[0056] In this optional embodiment, the movable base body 522 is embedded in the first mounting groove 531, and the two can be in a clearance fit relationship. This not only ensures that the movable base body 522 moves more smoothly and without tilting in the first mounting groove 531, but also that the first mounting groove 531 generates a certain damping effect on the movement of the movable base body 522, thereby offsetting the bending force of the tower body 200 and the tower base 300, so that the tower body 200 and the tower base 300 can be reset as soon as possible.

[0057] Optionally, combined Figure 7 and Figure 8 As shown, the movable seat structure also includes a rubber pad 523, which is fixedly connected to the bottom of the movable seat body 522; The mounting cavity further includes a second mounting groove 532, which is coaxially arranged with the first mounting groove 531 and located below the first mounting groove 531. The diameter of the second mounting groove 532 is larger than the diameter of the first mounting groove 531. The rubber pad 523 is located in the second mounting groove 532 and is used to move within the second mounting groove 532.

[0058] Specifically, a second mounting groove 532 can be opened below the center point of the offset box 530. The second mounting groove 532 is coaxial with the first mounting groove 531, and the diameter of the second mounting groove 532 is larger than the diameter of the first mounting groove 531, so that the transverse cross section of the mounting cavity is smaller at the top and larger at the bottom.

[0059] The diameter of the second mounting groove 532 can be larger than the diameter of the rubber pad 523, so that the rubber pad 523 can move within the second mounting groove 532.

[0060] In this optional embodiment, when the earthquake intensity is high or strong winds cause the tower base 300 to undergo lateral displacement, the offset plate 510, which is fixedly connected to the damping plate 450 in the seismic device 400, is subjected to force synchronously with the tower base 300. The tenon 521 at the bottom of the offset plate 510 engages with the moving seat body 522, which directly drives the moving seat body 522 and the rubber pad 523 to slide in the first mounting groove 531 and the second mounting groove 532 inside the offset box 530, respectively, providing a dedicated buffer space for the lateral displacement of the tower base 300 and preventing the steel structure from bending due to excessive tension caused by the rigid connection between the tower base 300 and the ground. A rubber ring is fixed to the surface of the movable seat body 522 that contacts the second mounting groove 532. This not only reduces the direct wear between the movable seat structure and the mounting cavity when sliding, but also provides auxiliary buffering through the elasticity of the rubber pad 523. Furthermore, the diameter of the rubber pad 523 embedded in the second mounting groove 532 is larger than the diameter of the movable seat body 522 embedded in the first mounting groove 531. This allows the rubber pad 523, with a diameter larger than that of the movable seat body 522, to also limit the upper and lower positions of the movable seat structure and the mounting cavity, preventing the movable seat body 522 from detaching from the offset box 530.

[0061] Optionally, combined Figure 7 The movable seat structure further includes a plurality of ball bearing structures 524. The inner bottom wall of the second mounting groove 532 is provided with a groove. The plurality of ball bearing structures 524 are located between the rubber pad 523 and the groove. The ball bearing structures 524 are used to roll in the groove.

[0062] Specifically, to facilitate the demonstration of the internal structure of the offset box 53, Figure 7 Of the four offset boxes 53, two offset boxes 53 show the structure of the vertical end face.

[0063] The ball structure 524 can be made of steel balls. The groove can serve as the area for receiving and rolling the ball structure 524.

[0064] In this optional embodiment, multiple ball bearing structures 524 between the rubber pad 523 and the bottom surface of the mounting cavity roll along the groove at the bottom of the second mounting groove 532, which can convert sliding friction into rolling friction, greatly reducing the sliding resistance of the moving seat structure, ensuring smoother lateral displacement of the tower base 300, and avoiding jamming that leads to local stress concentration.

[0065] Optionally, combined Figure 6 and Figure 7 As shown, the offset assembly 520 also includes a damping block 525, which is fixed to the bottom of the offset plate 510 and located between the offset plate 510 and the offset box 530.

[0066] Specifically, the damping block 525 can adopt a plate-like structure or a sheet-like structure with a certain friction force.

[0067] The damping block 525 can be fixedly installed on the bottom of the offset plate 510 by means of bonding, integral molding, etc.

[0068] In this optional embodiment, the damping block 525 fixed on the opposite side of the offset plate 510 and the offset box 530 will make slight contact with the inner wall of the offset box 530 when the offset plate 510 drives the moving seat structure to slide, generating additional damping force, further slowing down the sliding speed of the moving seat structure, avoiding the tower body 200 from shaking violently due to excessive displacement, and ensuring the stability of the overall structure.

[0069] Optionally, combined Figure 2 , Figure 9 and Figure 10 As shown, the transmission tower with self-resetting tower base also includes an anti-sinking device 600. The anti-sinking device 600 includes a settling plate 610 and multiple anti-sinking legs 620. The settling plate 610 is fixedly installed at the bottom of the offset box 530, and the multiple anti-sinking legs 620 are distributed axially around the settling plate 610. The anti-sinking support leg 620 includes a rotating lock 622, a bearing structure 621, a deformation sleeve structure 623, and a screw structure 624. The top end of the rotating lock 622 is rotatably connected to the settlement plate 610 through the bearing structure 621. The deformation sleeve structure 623 is fixedly connected to the bottom end of the rotating lock 622. The screw structure 624 passes through the deformation sleeve structure 623 and the rotating lock 622. The rotating lock 622 is threadedly connected to the screw structure 624. The bottom end of the screw structure 624 passes through the deformation sleeve structure 623 and inserts into the foundation soil layer. The bending node of the deformation sleeve structure 623 is used to bend outward during the downward movement of the tower base 300, the settlement plate 610, and the rotating lock 622.

[0070] Specifically, there can be four anti-sinking outriggers 620. Each anti-sinking outrigger 620 is connected to the settlement plate 610 in the same way.

[0071] The settlement plate 610 can be fixedly installed on the bottom of the offset box 530 by means of bonding, bolt fasteners or integral molding, or in other words, multiple offset boxes 530 are distributed at intervals and fixedly installed on the top of the settlement plate 610.

[0072] The top of the rotating latch 622 can be connected to the settling plate 610 via the bearing structure 621. The bearing structure 621 is horizontally positioned, and the rotating latch 622 can rotate relative to the settling plate 610 around the axial direction of the bearing structure 621.

[0073] The deformable sleeve structure 623 can be fixedly connected to the bottom end of the rotating lock 622 by means of sleeve, snap-fit ​​or other methods.

[0074] The deformation sleeve structure 623 may have a through channel, allowing the lead screw structure 624 to be inserted into the interior of the deformation sleeve structure 623. The top of the lead screw structure 624 is threadedly connected to the rotating lock 622, and the bottom of the lead screw structure 624 protrudes from the bottom of the deformation sleeve structure 623.

[0075] The deformable sleeve structure 623 has a bending node in the middle. When the deformable sleeve structure 623 is subjected to downward pressure, the bending node deforms and bends outward. When the deformable sleeve structure 623 is subjected to upward force or buoyancy, the bending node deforms and bends inward.

[0076] The deformable sleeve structure 623 can adopt the following structure, for example, a first support ring 6231, multiple bent support arms 6232 and a second support ring 6233 connected from top to bottom, wherein the top of the first support ring 6231 is fixedly connected to the bottom of the rotating lock 622, and the multiple bent support arms 6232 are distributed in a ring at intervals around the axial direction of the deformable sleeve structure 623; each bent support arm 6232 can be an arc-shaped strip structure or a broken line structure with a bending node.

[0077] The bottom end of the lead screw structure 624 may have a conical portion.

[0078] In this optional embodiment, when the ground where the transmission tower with self-resetting tower base is located settles due to deformation of the goaf or compression of the foundation, the settlement plate 610, which is fixedly connected to the offset box 530, moves downward synchronously with the ground, causing the bottom rotating latch 622 to move downward together. Since the rotating latch 622 is connected to the screw structure 624 inside the deformation sleeve structure 623 through a ball nut pair, the rotating latch 622 will slowly rotate along the thread of the screw structure 624 during the downward movement, and at the same time exert a downward compressive force on the bending support arms 6232 on both sides. The bending support arms 6232 are compressed. Subsequently, the pre-set bending node at the middle of the bending support arm 6232 will bend outward and gradually insert into the surrounding foundation soil. The depth of the bending support arm 6232 inserted into the soil increases with the increase of settlement, which can significantly increase the contact area and friction between the tower base 300 and the ground, prevent the tower base 300 from tilting with the continuous settlement of the ground, and effectively offset the impact of settlement on the stability of the tower base 300. Meanwhile, the conical part at the bottom of the screw structure 624 is pre-deep into the ground to provide an initial fixed support point for the entire anti-sinking device 600, ensuring that the screw structure 624 will not sink when the rotating lock 622 moves down.

[0079] Optionally, combined Figure 9 and Figure 10 As shown, the anti-sinking outrigger 620 also includes an anti-buoyancy rotating sleeve 625 and an anti-buoyancy component. The anti-buoyancy rotating sleeve 625 is connected to the bottom end of the deformation sleeve structure 623. The anti-buoyancy component is embedded in the anti-buoyancy rotating sleeve 625. The bottom end of the screw structure 624 passes through the anti-buoyancy rotating sleeve 625 and is inserted into the foundation soil layer. The bending node of the deformation sleeve structure 623 is also used to bend inward during the process of the buoyancy of the groundwater pushing the anti-buoyancy rotating sleeve 625 upward.

[0080] Specifically, the anti-floating rotating bushing 625 can be an inverted frustum structure or a conical structure with a hollow interior.

[0081] The top end of the anti-floating rotating bushing 625 and the bottom end of the deformation sleeve structure 623 can be fixedly connected by means of thread, plug-in, snap-fit, etc.

[0082] The anti-buoyancy component can be an annular airbag structure, which can be fixedly embedded inside the anti-buoyancy rotating sleeve 625, while the screw structure 624 can be vertically inserted into the center of the anti-buoyancy component inside the anti-buoyancy rotating sleeve 625 and extend downward below the anti-buoyancy component.

[0083] In this optional embodiment, when the groundwater level rises and the resulting buoyancy pushes the tower base 300 upwards, the buoyancy will preferentially act on the anti-buoyancy rotating sleeve 625 at the bottom of the bent support arm 6232. The anti-buoyancy component inside the anti-buoyancy rotating sleeve 625 floats upwards under the action of buoyancy, causing the anti-buoyancy rotating sleeve 625 to move upwards as a whole. When the anti-buoyancy rotating sleeve 625 moves upwards, it will pull the lower half of the bent support arm 6232 to rotate upwards synchronously, causing the middle bending node of the bent support arm 6232 to bend inwards and further embed into the foundation soil layer. At this time, the embedding depth of the bent support arm 6232 with the ground increases, forming a reverse anchoring force on the upward movement of the tower base 300, which can directly counteract the buoyancy of the groundwater. At the same time, the screw structure 624 is tightly connected to the underground soil layer through the conical part, restricting the overall upward movement of the anti-buoyancy device 600, ultimately preventing the tower base 300 from being pushed out of the ground by buoyancy and ensuring the upright posture of the tower body 200.

[0084] The overall working principle of a transmission tower with self-resetting tower base is as follows: When the self-resetting tower base 300 structure encounters dynamic loads such as wind and earthquakes, the tower body 200 initially shifts, causing the counterweight ball 440 to generate a reverse gravity. The damping structure 465 of the damping component 460 and the damping groove 451 work together to weaken the swaying and initially control the shift of the tower body 200. If the load is too large and causes lateral displacement of the tower base 300, the moving seat structure slides along the mounting cavity of the offset box 530, cooperating with the damping block 525 and the ball bearing structure 524 to buffer the displacement and avoid damage to the tower body 200 and the tower base 300. When facing ground subsidence or groundwater buoyancy, during subsidence, the bending support arm 6232 bends outward and inserts into the soil layer to offset the effect of subsidence. During buoyancy, the bending support arm 6232 bends inward to strengthen the anchorage and resist buoyancy.

[0085] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A power transmission tower with a tower base self-resetting function, comprising a tower body (100), a tower body (200) and a tower base (300) connected in sequence in the height direction, characterized in that, Further comprising an anti-seismic mechanism, the anti-seismic mechanism comprising an anti-seismic device (400), the anti-seismic device (400) comprising: a fixed plate (410) fixedly installed at the connection between the tower body (200) and the tower base (300); a traction cable assembly (420) with a top end fixedly connected with the fixed plate (410); a ring-shaped support assembly (430) fixedly connected with the bottom end of the traction cable assembly (420); the ring-shaped support assembly (430) is provided with a receiving cavity; a counterweight ball (440) partially located in the receiving cavity; a damping plate (450) provided with a damping groove (451) with a diameter greater than that of the counterweight ball (440), the counterweight ball (440) partially located in the damping groove (451) and movable in the damping groove (451).

2. The power transmission tower with a tower base self-resetting effect according to claim 1, characterized in that, The anti-seismic device (400) further comprises a plurality of damping assemblies (460) axially spaced around the ring-shaped support assembly (430), the top end and the bottom end of each damping assembly (460) respectively movably connected with the ring-shaped support assembly (430) and the leg of the tower base (300).

3. The transmission tower with tower base self-resetting action according to claim 2, characterized in that, The damping assembly (460) comprises a first connecting rod (461), a second connecting rod (462), a compression joint (463), a fixed lock (464) and a damping structure (465), the two ends of the first connecting rod (461) respectively rotatably connected with the outer edge of the ring-shaped support assembly (430) and one end of the second connecting rod (462), the other end of the second connecting rod (462) rotatably connected with the fixed lock (464), the fixed lock (464) sleeved on the leg of the tower base (300); the compression joint (463) installed between the two ends of the first connecting rod (461), the two ends of the damping structure (465) respectively rotatably connected with the compression joint (463) and the second connecting rod (462).

4. The transmission tower with tower base self-resetting action according to claim 1, characterized in that, The anti-seismic mechanism further comprises an offset device (500), the offset device (500) comprising an offset plate (510), a plurality of offset assemblies (520) and a plurality of offset boxes (530), the offset plate (510) fixedly installed at the bottom of the damping plate (450), the plurality of offset assemblies (520) and the plurality of offset boxes (530) respectively annularly and spacedly distributed around the axis of the offset plate (510), the offset assembly (520) movably installed between the offset plate (510) and the offset box (530), the offset plate (510) used to drive the offset assembly (520) to offset relative to the offset box (530).

5. The transmission tower with tower base self-resetting action according to claim 4, characterized in that, The offset component (520) comprises a tenon (521) and a moving seat structure, the tenon (521) is fixedly installed at the bottom of the offset plate (510), the offset box (530) is provided with a mounting cavity, the moving seat structure is embedded in the mounting cavity, the moving seat structure is provided with a plug hole, the tenon (521) is inserted into the plug hole, and the moving seat structure is used for moving in the mounting cavity.

6. The transmission tower with tower base self-resetting action according to claim 5, characterized in that, The moving seat structure comprises a moving seat body (522), the mounting cavity comprises a first mounting groove (531), and the moving seat body (522) is embedded in the first mounting groove (531) and used for moving in the first mounting groove (531).

7. The transmission tower with tower base self-resetting action according to claim 6, characterized in that, The moving seat structure further comprises a rubber pad (523), and the rubber pad (523) is fixedly connected with the bottom of the moving seat body (522); The mounting cavity further comprises a second mounting groove (532), the second mounting groove (532) is coaxially arranged with the first mounting groove (531) and located below the first mounting groove (531), the diameter of the second mounting groove (532) is greater than that of the first mounting groove (531), the rubber pad (523) is located in the second mounting groove (532), and the rubber pad (523) is used for moving in the second mounting groove (532).

8. The transmission tower with tower base self-resetting action according to claim 7, characterized in that, The moving seat structure further comprises a plurality of ball structures (524), an inner bottom wall of the second mounting groove (532) is provided with a groove, a plurality of the ball structures (524) are located between the rubber pad (523) and the groove, and the ball structures (524) are used for rolling in the groove.

9. The transmission tower with self-resetting action of tower base according to any one of claims 4 to 8, characterized in that, Further comprising an anti-sinking and floating device (600), the anti-sinking and floating device (600) comprises a sinking plate (610) and a plurality of anti-sinking and floating legs (620), the sinking plate (610) is fixedly installed at the bottom of the offset box (530), and the plurality of anti-sinking and floating legs (620) are distributed at intervals around the axial direction of the sinking plate (610); The anti-sinking and floating leg (620) comprises a rotating lock (622), a bearing structure (621), a deformation sleeve structure (623) and a lead screw structure (624), the top end of the rotating lock (622) is rotatably connected with the sinking plate (610) through the bearing structure (621), the deformation sleeve structure (623) is fixedly connected to the bottom end of the rotating lock (622), the lead screw structure (624) penetrates through the deformation sleeve structure (623) and the rotating lock (622), the rotating lock (622) is threadedly connected with the lead screw structure (624), the bottom end of the lead screw structure (624) penetrates out of the deformation sleeve structure (623) and is inserted into the foundation soil layer, and the bending node of the deformation sleeve structure (623) is used for bending outward in the process that the tower foundation (300) sinks and the sinking plate (610) and the rotating lock (622) move downward.

10. The transmission tower with tower base self-resetting action according to claim 9, characterized in that, The anti-sinking and anti-floating support leg (620) further comprises an anti-floating rotation shaft sleeve (625) and an anti-floating component, the anti-floating rotation shaft sleeve (625) is connected to the bottom end of the deformation sleeve structure (623), the anti-floating component is embedded in the anti-floating rotation shaft sleeve (625), and the bottom end of the screw rod structure (624) is arranged in the anti-floating rotation shaft sleeve (625) and inserted into the ground soil layer; the bending node of the deformation sleeve structure (623) is further used for bending inwards in the process that the buoyancy of underground water pushes the anti-floating rotation shaft sleeve (625) upwards.

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