Power transmission and transformation tower foundation slope soil retaining device

By installing a double buffer device consisting of a buffer net and a rotating plate on top of the retaining wall, the structural damage caused by frequent impacts from gravel was solved, and the stability of the foundation slope of the power transmission and transformation tower was improved.

CN121363216APending Publication Date: 2026-01-20STATE GRID JIANGSU ELECTRIC POWER CO LTD NANTONG POWER SUPPLY BRANCH +1
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Patent Information

Application Number
CN202511818602.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-01-20

AI Technical Summary

Technical Problem

At the foundation slope of power transmission and transformation towers, gravel frequently impacts the top of the retaining wall, causing structural damage, shortening its service life, and threatening the safety and stability of the foundation.

Method used

A double buffer device is installed at the top of the retaining wall, consisting of a buffer net and a rotating plate. The buffer net initially blocks the stones, while the rotating plate and the elastic element work together to slow down the speed of the stones.

Benefits of technology

It effectively slows down the falling speed of rocks, reduces the impact on the top of the retaining wall, and improves the stability and protection effect of the foundation slope of power transmission and transformation towers.

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Abstract

The invention belongs to the technical field of power transmission, and discloses a power transmission and transformation tower foundation slope retaining device which comprises a retaining wall and a buffer device arranged at the top of the retaining wall. The buffer device comprises a first buffer assembly and a second buffer assembly, wherein the first buffer assembly comprises a buffer net vertically arranged on the top of the retaining wall; the second buffering assembly is arranged on the side, facing the power transmission and transformation tower, of the first buffering assembly and comprises a first elastic part and two rotating plates which are rotatably connected, the two rotating plates are vertically arranged on the top of the retaining wall, an included angle is formed between the two rotating plates, and the included angle faces the side deviating from the first buffering assembly; the first elastic piece is arranged on the sides, away from the first buffering assembly, of the two rotating plates, one end of the first elastic piece is connected to one rotating plate, the other end of the first elastic piece is connected to the other rotating plate, and the first elastic piece always has the elastic trend enabling the included angle between the two rotating plates to be kept at the preset angle. The retaining device can reduce the impact of stones on the top of the retaining wall.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission, in particular to a power transmission and transformation tower foundation slope soil retaining device. BACKGROUND

[0002] In long-distance power transmission, power transmission and transformation towers are the core infrastructure for carrying lines and ensuring stable power transmission. Due to multiple factors such as power transmission path planning and terrain conditions, many power transmission lines need to pass through mountainous and hilly areas, and some power transmission and transformation towers inevitably need to be erected on mountain slopes.

[0003] When installing power transmission and transformation towers, the mountain slope needs to be excavated and processed first to create a flat work surface for subsequent foundation construction. To prevent geological disasters such as landslides from damaging the tower foundation, retaining walls are constructed to block the movement of the mountain during construction. However, in actual operation, rockslides frequently occur, and these rocks will continue to hit the top of the retaining wall at high speed, gradually causing cracks in the wall top and eventually developing into broken gaps, not only damaging the structural integrity of the retaining wall, but also significantly shortening its service life, indirectly threatening the safety and stability of the power transmission and transformation tower foundation.

[0004] Therefore, it is urgent to propose a power transmission and transformation tower foundation slope soil retaining device to solve the above technical problems. SUMMARY

[0005] The purpose of the present application is to provide a power transmission and transformation tower foundation slope soil retaining device that forms a double-buffer protection system, effectively slows down the falling speed of stones, reduces the impact of stones on the top of the retaining wall, and helps maintain the stability of the power transmission and transformation tower foundation slope, improving the protection effect of the power transmission and transformation tower foundation.

[0006] As conceived above, the technical solution adopted by the present application is:

[0007] The present application provides a power transmission and transformation tower foundation slope soil retaining device, which comprises a retaining wall and a buffer device arranged on the top of the retaining wall; the buffer device comprises:

[0008] A first buffer assembly comprising a buffer net erected on the top of the retaining wall;

[0009] A second buffering assembly is arranged on a side of the first buffering assembly facing the power transmission tower, and the second buffering assembly comprises a first elastic member and two rotatable connecting rotating plates. The two rotating plates are arranged vertically on the top of the retaining wall, and the two rotating plates are arranged at an angle and the angle faces away from the first buffering assembly. One end of the first elastic member is connected to one of the rotating plates, and the other end of the first elastic member is connected to the other rotating plate. The first elastic member always has an elastic tendency to keep the angle between the two rotating plates at a preset angle.

[0010] In some embodiments, the second buffering assembly further comprises a first mounting vertical rod, and the bottom end of the first mounting vertical rod is connected to the top of the retaining wall. The two rotating plates are symmetrically arranged on both sides of the first mounting vertical rod and are rotatably connected to the first mounting vertical rod.

[0011] In some embodiments, the side of the first mounting vertical rod facing away from the first buffering assembly is connected with a reinforcing frame, and the bottom end of the reinforcing frame is connected to the top of the retaining wall.

[0012] In some embodiments, a limiting piece is arranged on the outer wall of the first mounting vertical rod facing the first buffering assembly, and the limiting piece is used to limit the rotation of the two rotating plates towards the first buffering assembly, so that the angle between the two rotating plates is kept at the preset angle.

[0013] In some embodiments, the two ends of the first elastic member are respectively connected to the corresponding rotating plates through a connecting assembly, and the connecting assembly comprises a fixed seat, a hinged seat and a connecting bolt. The fixed seat is fixedly arranged on the side of the rotating plate facing away from the first buffering assembly. One end of the hinged seat is connected to the first elastic member, and the other end of the hinged seat is hingedly connected to the fixed seat through the connecting bolt.

[0014] In some embodiments, the rotating plate is connected with a protection piece, and the protection piece covers the surface of the rotating plate facing the first buffering assembly.

[0015] In some embodiments, the protection piece comprises a protection piece body and an insertion block arranged at the top end and the bottom end of the protection piece body. The surface of the rotating plate facing away from the first buffering assembly is provided with a fixed piece, and one end of the fixed piece is arranged as an opening. The insertion block can be inserted into the fixed piece through the opening.

[0016] In some embodiments, a clamping structure is further arranged between the plug and the fixing member, the clamping structure comprising a clamping block, a second elastic member, a baffle and a clamping hole, the clamping hole being arranged in the fixing member, the plug being internally provided with a cavity, the second elastic member and the baffle being arranged in the cavity, one end of the second elastic member being fixedly connected to an inner wall of the cavity, the other end of the second elastic member being connected with the baffle, the clamping block being connected to one end of the baffle away from the second elastic member and partially protruding from the plug, the baffle being capable of being stopped against the inner wall of the cavity, the second elastic member always having an elastic tendency of protruding the clamping block from the plug, the clamping block being capable of being clamped in the clamping hole when the plug is inserted into the fixing member.

[0017] In some embodiments, a plurality of the second buffer assemblies are arranged, and the plurality of second buffer assemblies are continuously distributed along the length direction of the retaining wall.

[0018] In some embodiments, the first buffer assembly further comprises a second mounting vertical rod, the bottom end of the second mounting vertical rod being connected to the top of the retaining wall, and the buffer net being connected between the two second mounting vertical rods.

[0019] The beneficial effects of the present application are as follows:

[0020] The slope retaining device for the power transmission tower foundation provided by the present application can effectively slow down the falling speed of the stones, thereby reducing the impact of the stones on the top of the retaining wall, and is beneficial to maintaining the stability of the slope of the power transmission tower foundation and improving the protection effect on the power transmission tower foundation. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0022] Figure 1 is a structural schematic view of the slope retaining device for the power transmission tower foundation provided by the embodiments of the present application;

[0023] Figure 2 is a structural schematic view of the retaining wall and the first buffer assembly provided by the embodiments of the present application;

[0024] Figure 3 is a structural schematic view of the second buffer assembly provided by the embodiments of the present application;

[0025] Figure 4 is a structural schematic view of a second buffer assembly provided by the embodiment of the present application, which conceals the first elastic member;

[0026] Figure 5 is a structural schematic view of a first elastic member provided by the embodiment of the present application;

[0027] Figure 6 is Figure 4 is a local enlarged view of A in FIG. 4;

[0028] Figure 7 is a schematic view of a clamping structure provided by the embodiment of the present application.

[0029] in the figure:

[0030] 100, retaining wall; 200, buffer device;

[0031] 1, first buffer assembly; 11, buffer net; 12, second mounting vertical rod;

[0032] 2, second buffer assembly; 21, first elastic member; 22, rotating plate; 23, first mounting vertical rod; 24, reinforcing frame; 25, connecting assembly; 251, fixing seat; 252, hinged seat; 253, connecting bolt; 26, protection member; 261, protection member body; 262, plug; 263, fixing member;

[0033] 3, clamping structure; 31, clamping block; 32, second elastic member; 33, baffle; 34, clamping hole. DETAILED DESCRIPTION

[0034] So that the objects, technical solutions and advantages of the embodiments of the present application are more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0036] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] In the description of the application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product of the application is used, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the application, it should be noted that, unless otherwise specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the application, and cannot be understood as limiting the application.

[0041] As shown in Figures 1-7 The present embodiment provides a power transmission and distribution tower foundation slope retaining device, which comprises a retaining wall 100 and a buffer device 200 arranged on the top of the retaining wall 100.

[0042] The buffer device 200 comprises a first buffer assembly 1 and a second buffer assembly 2.

[0043] The first buffer assembly 1 comprises a buffer net 11 erected on the top of the retaining wall 100. The second buffer assembly 2 is arranged on the side of the first buffer assembly 1 facing the power transmission tower, and the second buffer assembly 2 comprises a first elastic member 21 and two rotatable connecting rotating plates 22. The two rotating plates 22 are erected on the top of the retaining wall 100, and the two rotating plates 22 are arranged at an included angle and the included angle faces away from the first buffer assembly 1. The first elastic member 21 is arranged on the side of the two rotating plates 22 facing away from the first buffer assembly 1. One end of the first elastic member 21 is connected to one of the rotating plates 22, and the other end of the first elastic member 21 is connected to the other rotating plate 22. The first elastic member 21 always has an elastic tendency to keep the included angle of the two rotating plates 22 at a preset angle.

[0044] When the mountain falls stones, the stones will be stopped by the first buffer assembly 1 and the second buffer assembly 2 in turn, thereby reducing the impact of the stones on the top of the retaining wall 100. Specifically, among the falling stones, small stones with small volumes can pass through the holes of the buffer net 11 and be stopped by the rotating plates 22. Large stones with large volumes can be stopped by the buffer net 11 first, and the speed of the large stones is preliminarily reduced. However, the buffer net 11 may be deformed or damaged due to the large weight of the large stones, so that the large stones further contact the rotating plates 22. The two rotating plates 22 are close to each other under the pressure of the large stones, that is, the included angle between the two rotating plates 22 is reduced. In this way, the first elastic member 21 is extruded, and the extruded first elastic member 21 is reversely pushed to reset the two rotating plates 22 under the action of the elastic force of the first elastic member 21, thereby applying a reverse force to the large stones to reduce the speed of the large stones and reduce the impact of the large stones on the top of the retaining wall 100.

[0045] The first elastic member 21 includes but is not limited to a spring.

[0046] The power transmission tower foundation slope retaining device provided by the embodiment can effectively reduce the falling speed of the stones, thereby reducing the impact of the stones on the top of the retaining wall 100, which is conducive to maintaining the stability of the power transmission tower foundation slope and improving the protection effect on the power transmission tower foundation.

[0047] Optionally, the preset angle is 170°, that is, the included angle of the two rotating plates 22 can be kept at 170° under the action of the first elastic member 21.

[0048] As Figure 3 and Figure 4As shown, in some embodiments, the second buffer assembly 2 further includes a first mounting pole 23, the bottom end of which is connected to the top of the retaining wall 100, and two rotating plates 22 are symmetrically arranged on both sides of the first mounting pole 23 and are rotatably connected to the first mounting pole 23 respectively.

[0049] With this setup, the first mounting pole 23 provides stable and central support for the two rotating plates 22, ensuring that the two rotating plates 22 rotate accurately and are subjected to symmetrical forces.

[0050] The bottom end of the first mounting post 23 can be connected to the top of the retaining wall 100 by bolts, which provides high connection strength and facilitates assembly and disassembly. The rotational connection between the rotating plate 22 and the first mounting post 23 is the same as that of existing hinges, and will not be described in detail here.

[0051] In some embodiments, a limiting member is provided on the outer wall of the first mounting pole 23 facing the first buffer assembly 1. The limiting member is used to restrict the two rotating plates 22 from rotating towards the first buffer assembly 1, so that the included angle between the two rotating plates 22 is maintained at a preset angle. With this configuration, the limiting member can prevent the two rotating plates 22 from rotating excessively during reset, ensuring that the included angle between the two rotating plates 22 can be stabilized at the preset angle.

[0052] Optionally, the limiting element is set as a limiting block, which is welded to the first mounting post 23.

[0053] like Figure 3 and Figure 4 As shown, in some embodiments, a reinforcing frame 24 is connected to the side of the first mounting pole 23 facing away from the first buffer assembly 1, and the bottom end of the reinforcing frame 24 is connected to the top of the retaining wall 100. The reinforcing frame 24 helps to improve the stability of the first mounting pole 23 and prevents the first mounting pole 23 from tilting due to the impact of stones.

[0054] For example, the bottom end of the reinforcing frame 24 is bolted to the top of the retaining wall 100, and the reinforcing frame 24 is welded to the first mounting pole 23.

[0055] like Figure 3 and Figure 5 As shown, in some embodiments, the two ends of the first elastic member 21 are respectively connected to the corresponding rotating plate 22 through the connecting assembly 25. The connecting assembly 25 includes a fixed seat 251, a hinge seat 252 and a connecting bolt 253. The fixed seat 251 is fixed on the side of the rotating plate 22 away from the first buffer assembly 1. One end of the hinge seat 252 is connected to the first elastic member 21, and the other end of the hinge seat 252 is hinged to the fixed seat 251 through the connecting bolt 253.

[0056] This design enables a flexible hinge between the first elastic element 21 and the rotating plate 22, ensuring that the first elastic element 21 is securely installed and can adapt to the angle changes of the rotating plate 22 during rotation, thereby ensuring the continuous and stable operation of the elastic buffer function.

[0057] For example, the fixed seat 251 is bolted to the rotating plate 22, and the first elastic element 21 is bonded and fixed to the contact portion of the hinge seat 252.

[0058] like Figure 4 As shown, in some embodiments, the rotating plate 22 is connected to a protective member 26, which covers the surface of the rotating plate 22 facing the first buffer assembly 1. Thus, by placing the protective member 26 on the side of the rotating plate 22 facing the falling stone, the rotating plate 22 is protected.

[0059] like Figure 4 and Figure 6 As shown, in some embodiments, the protective member 26 includes a protective member body 261 and insert blocks 262 disposed at the top and bottom ends of the protective member body 261. A fixing member 263 is disposed on the surface of the rotating plate 22 away from the first buffer assembly 1. One end of the fixing member 263 is configured as an opening, and the insert block 262 can be inserted into the fixing member 263 through the opening.

[0060] With this design, the protective component 26 can be quickly installed and removed with a simple plugging and unplugging action, making it easy to replace and maintain the protective component body 261 after wear.

[0061] Optionally, the protective body 261 is made of an elastic material (such as rubber, silicone, etc.). In this way, after a stone hits the protective body 261, the protective body 261 can absorb the impact force of the stone through elastic deformation.

[0062] like Figure 6 and Figure 7 As shown, in some embodiments, a snap-fit ​​structure 3 is also provided between the insert block 262 and the fixing member 263. The snap-fit ​​structure 3 includes a snap-fit ​​block 31, a second elastic member 32, a baffle 33, and a snap-fit ​​hole 34. The snap-fit ​​hole 34 is opened in the fixing member 263. A cavity is provided inside the insert block 262. The second elastic member 32 and the baffle 33 are disposed inside the cavity. One end of the second elastic member 32 is fixedly connected to the inner wall of the cavity, and the other end of the second elastic member 32 is connected to the baffle 33. The snap-fit ​​block 31 is connected to the end of the baffle 33 that is away from the second elastic member 32 and partially protrudes from the insert block 262. The baffle 33 can stop against the inner wall of the cavity. The second elastic member 32 always has an elastic tendency to make the snap-fit ​​block 31 protrude from the insert block 262. When the insert block 262 is inserted into the fixing member 263, the snap-fit ​​block 31 can pass through and snap into the snap-fit ​​hole 34.

[0063] When the protection member 26 is installed, the insertion blocks 262 at the top and bottom ends of the protection member body 261 are aligned with the openings of the fixing members 263 on the rotating plate 22 and are inserted, and in the process of insertion, the clamping blocks 31 are pressed by the inner walls of the fixing members 263, and the second elastic members 32 are compressed by the baffle plates 33; when the insertion blocks 262 are completely inserted into the fixing members 263 and the clamping blocks 31 are aligned with the clamping holes 34, the second elastic members 32 push the baffle plates 33 under the elastic tendency of the second elastic members 32, so that the clamping blocks 31 pass through the clamping holes 34 to complete clamping and fixing; when disassembling, the clamping blocks 31 protruding from the clamping holes 34 are pressed, the baffle plates 33 are compressed, the second elastic members 32 are compressed, and after the clamping blocks 31 are withdrawn into the fixing members 263, the insertion blocks 262 can be pulled out from the openings of the fixing members 263.

[0064] By arranging the clamping structure 3, the connection stability between the insertion blocks 262 and the fixing members 263 can be further improved, so that the protection member 26 is further prevented from falling off when the stone blocks hit.

[0065] As shown in Figure 1 some embodiments, the second buffer assembly 2 is provided in multiple numbers, and the multiple second buffer assemblies 2 are continuously distributed along the length direction of the retaining wall 100. The multiple second buffer assemblies 2 are continuously distributed to form a buffer protection surface with no dead angle in the whole region, avoiding local protection gaps.

[0066] As shown in Figure 1 some embodiments, the second buffer assembly 2 is provided in three numbers, but is not limited thereto, and the specific number can be determined according to the actual retaining wall 100 and the size of the second buffer assembly 2 itself.

[0067] As shown in Figure 2 some embodiments, the first buffer assembly 1 further includes second installation vertical rods 12, the bottom ends of the second installation vertical rods 12 are connected to the top of the retaining wall 100, and the buffer net 11 is connected between the two second installation vertical rods 12.

[0068] The second installation vertical rods 12 provide stable installation support for the buffer net 11, ensure that the buffer net 11 is flat and tensioned, and guarantee the initial blocking and speed reduction effect on the stone blocks.

[0069] Exemplarily, the second installation vertical rods 12 can be inserted into the top of the retaining wall 100, and the buffer net 11 is adhesively fixed between the second installation vertical rods 12.

[0070] In some embodiments, a plurality of buffer nets 11 are arranged according to the length of the retaining wall 100 to avoid protection gaps.

[0071] Note that the above merely describes preferred embodiments of the present application and the principles of the technology applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, modifications and substitutions can be made without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A slope retaining device for a power transmission tower foundation, characterized by, The utility model relates to a kind of slope retaining wall (100) and buffer device (200) arranged on the top of the slope retaining wall (100);The buffer device (200) includes: First buffering assembly (1), including the buffer net (11) vertically set on the top of the slope retaining wall (100); Second buffering assembly (2) is arranged on the side of the first buffering assembly (1) towards transmission and power pole tower, and the second buffering assembly (2) includes first elastic member (21) and two rotatable connection rotating plates (22), two rotating plates (22) are vertically set on the top of the slope retaining wall (100), and the included angle between two rotating plates (22) is arranged and the included angle is away from the side of the first buffering assembly (1), and the first elastic member (21) is arranged on the side of two rotating plates (22) away from the first buffering assembly (1), one end of the first elastic member (21) is connected to one of the rotating plates (22), and the other end of the first elastic member (21) is connected to another rotating plate (22), and the first elastic member (21) always has the elastic tendency of keeping the included angle of two rotating plates (22) at preset angle.

2. The slope retaining wall of the transmission and power pole tower foundation according to claim 1, wherein, The second buffering assembly (2) further includes a first mounting vertical rod (23), and the bottom end of the first mounting vertical rod (23) is connected to the top of the slope retaining wall (100), and the two rotating plates (22) are symmetrically arranged on both sides of the first mounting vertical rod (23) and are rotatably connected to the first mounting vertical rod (23) respectively.

3. The slope retaining wall of the transmission and power pole tower foundation according to claim 2, wherein, The side of the first mounting vertical rod (23) away from the first buffering assembly (1) is connected with a reinforcing frame (24), and the bottom end of the reinforcing frame (24) is connected to the top of the slope retaining wall (100).

4. The slope retaining wall of the transmission and power pole tower foundation according to claim 2, wherein, A limiting piece is arranged on the outer wall of the first mounting vertical rod (23) towards the first buffering assembly (1), and the limiting piece is used to limit the rotation of the two rotating plates (22) towards the first buffering assembly (1) to keep the included angle between the two rotating plates (22) at the preset angle.

5. The slope retaining wall of the transmission and power pole tower foundation according to claim 1, wherein, The two ends of the first elastic member (21) are connected with the corresponding rotating plates (22) through connecting assemblies (25) respectively, and the connecting assembly (25) includes a fixed seat (251), a hinged seat (252) and a connecting bolt (253), the fixed seat (251) is fixedly arranged on the side of the rotating plate (22) away from the first buffering assembly (1), one end of the hinged seat (252) is connected to the first elastic member (21), and the other end of the hinged seat (252) is hingedly connected to the fixed seat (251) through the connecting bolt (253). 6.The slope retaining device of power transmission tower foundation according to claim 1, characterized in that, the rotating plate (22) is connected with a protection piece (26) covering the surface of the rotating plate (22) facing the first buffer assembly (1). 7.The slope retaining device of power transmission tower foundation according to claim 6, characterized in that, the protection piece (26) comprises a protection piece body (261) and an insertion block (262) arranged at the top and bottom ends of the protection piece body (261), and the surface of the rotating plate (22) away from the first buffer assembly (1) is provided with a fixing piece (263) with one end being an opening, and the insertion block (262) can be inserted into the fixing piece (263) through the opening. 8.The slope retaining device of power transmission tower foundation according to claim 7, characterized in that, a clamping structure (3) is further arranged between the insertion block (262) and the fixing piece (263), the clamping structure (3) comprises a clamping block (31), a second elastic piece (32), a baffle (33) and a clamping hole (34), the clamping hole (34) is arranged in the fixing piece (263), the insertion block (262) is provided with a cavity, the second elastic piece (32) and the baffle (33) are arranged in the cavity, one end of the second elastic piece (32) is fixedly connected to the inner wall of the cavity, the other end of the second elastic piece (32) is connected with the baffle (33), the clamping block (31) is connected to the end of the baffle (33) away from the second elastic piece (32) and partially protrudes from the insertion block (262), the baffle (33) can be stopped in the inner wall of the cavity, the second elastic piece (32) always has an elastic tendency to make the clamping block (31) protrude from the insertion block (262), when the insertion block (262) is inserted into the fixing piece (263), the clamping block (31) can be clamped in the clamping hole (34). 9.The slope retaining device of power transmission tower foundation according to any one of claims 1-8, characterized in that, a plurality of the second buffer assemblies (2) are arranged, and the plurality of the second buffer assemblies (2) are continuously distributed along the length direction of the retaining wall (100). 10.The slope retaining device of power transmission tower foundation according to any one of claims 1-8, characterized in that, the first buffer assembly (1) further comprises a second mounting vertical rod (12), the bottom end of the second mounting vertical rod (12) is connected to the top of the retaining wall (100), and the buffer net (11) is connected between the two second mounting vertical rods (12).