Power transmission tower angle steel reinforcing device and power transmission tower

Abstract

The application relates to a power transmission tower angle steel reinforcing device and a power transmission tower, which comprises a first reinforcing component, a second reinforcing component and an angle steel. The first reinforcing component comprises reinforcing angle steels, and the reinforcing angle steels are provided with a plurality of reinforcing components. The reinforcing components comprise a first reinforcing part and a second reinforcing part which are respectively used for abutting the outer sides of two limbs of the angle steel. The second reinforcing component comprises a third reinforcing part and a fourth reinforcing part which are respectively used for abutting the inner sides of the two limbs of the angle steel. The third reinforcing part and the fourth reinforcing part are provided with a connecting part. The two ends of the connecting part can be detachably connected with the outer end parts of the first reinforcing part and the second reinforcing part. After the first reinforcing component and the second reinforcing component are matched with the angle steel to be reinforced, the connecting position of the connecting part with the first reinforcing part is located on the outer side of one limb of the angle steel to be reinforced, and the connecting position of the connecting part with the second reinforcing part is located on the outer side of the other limb of the angle steel to be reinforced. The reinforcing device of the application avoids the punching or welding damage of the angle steel and avoids the stress concentration phenomenon.

Description

Technical Field

[0001] This invention relates to the field of transmission tower reinforcement technology, specifically to a transmission tower angle steel reinforcement device and a transmission tower. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Currently, the reinforcement methods for the original main angle steel of transmission towers include: adding transverse diaphragms, node reinforcement, and increasing the cross-section. Among these, the method of increasing the cross-section is the most widely used. This method involves connecting a new component, such as angle steel or channel steel, in parallel to the original main angle steel of the tower to form a new composite cross-section, such as a cross-shaped cross-section. The original main angle steel and the newly added angle steel are currently generally connected by bolts using filler plates. The number of bolts used in this method has a significant impact on the load-bearing capacity of the specimen. It typically requires numerous holes to be drilled in the main angle steel of the tower for bolt connections with the parallel angle steel, weakening the strength of the original main angle steel. Furthermore, the extensive drilling at height poses a safety hazard to construction workers. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a transmission tower angle steel reinforcement device and transmission tower. When reinforcing the angle steel, it avoids a large number of holes in the original main angle steel, thereby ensuring the structural strength of the original main angle steel and ensuring the safety of construction personnel.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, embodiments of the present invention provide a transmission tower angle steel reinforcement device, comprising:

[0007] First reinforcing member: includes reinforcing angle steel, the reinforcing angle steel is provided with multiple reinforcing components, the reinforcing components include a first reinforcing part and a second reinforcing part respectively used to fit against the outer side of the two limbs of the angle steel to be reinforced;

[0008] Second reinforcing member: used to cooperate with the reinforcing component, including a third reinforcing part and a fourth reinforcing part respectively for fitting with the inner side of the two limbs of the angle steel, and a connecting part is provided between the third reinforcing part and the fourth reinforcing part, and the two ends of the connecting part can be detachably connected to the outer ends of the first reinforcing part and the second reinforcing part respectively.

[0009] Wherein, after the first reinforcing member and the second reinforcing member are fitted with the angle steel to be reinforced, the connection position of the connecting part and the first reinforcing part is located on the outside of one limb of the angle steel to be reinforced, and the connection position of the connecting part and the second reinforcing part is located on the outside of the other limb of the angle steel to be reinforced.

[0010] Optionally, the outer ends of the first and second reinforcing parts are provided with a first fixing hole, and the two ends of the connecting part are provided with a second fixing hole. The connecting part can be detachably and fixedly connected to the first and second reinforcing parts through the second fixing hole, the first fixing hole, and the threaded fastener.

[0011] Optionally, the third reinforcing part is fixed to one end of the first rigid connector, the fourth reinforcing part is fixed to one end of the second rigid connector, the connecting part abuts against one end of the elastic connector, the first rigid connector and the second rigid connector are fixed by a connecting assembly, and the other end of the elastic connector is hinged to the connecting piece.

[0012] Optionally, the elastic connector includes a protective sleeve, one end of which is hinged to the connector. A piston is slidably connected inside the protective sleeve, dividing the internal space of the protective sleeve into a rod chamber and a rodless chamber. A piston rod is provided in the rod chamber, one end of which is connected to the piston, and the other end of the piston rod extends to the outside of the protective sleeve and abuts against the inner side of the connector. An elastic element is provided in the rodless chamber, one end of which is connected to the piston, and the other end of which is connected to the cavity surface of the rodless chamber.

[0013] Optionally, the protective sleeve is made of fiber-reinforced composite material.

[0014] Optionally, the end of the piston rod extending to the outside of the protective sleeve is provided with a contact frustum, which abuts against the inner side of the connecting part.

[0015] Optionally, the connector is a connecting bolt, which passes through the lugs at the ends of the first rigid connector and the second rigid connector and is fixedly connected to the lugs. The end of the elastic connector is rotatably connected to the connecting bolt through the lugs.

[0016] Optionally, the outer side of the connecting part of the second reinforcing member is fixed to one end of the cantilever, and the other end of the cantilever is rotatably connected to a connecting hook, with a locking component provided between the connecting hook and the end of the cantilever.

[0017] Optionally, the connecting hook adopts a V-shaped structure, and its corner position is rotatably connected to the end of the cantilever via a rotating shaft. One end of the connecting hook is used to cooperate with other connecting hooks, and the other end is provided with a fixing groove. The locking component adopts a locking pin, which is vertically and slidably connected to the cantilever. The locking pin is provided with a locking tongue that matches the fixing groove. The locking pin can move along its own axis to switch between the locking tongue being inserted into and leaving the fixing groove.

[0018] Secondly, embodiments of the present invention provide a transmission tower equipped with the transmission tower angle steel reinforcement device described in the first aspect.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. In the angle steel reinforcement device of the present invention, after the first reinforcement component and the second reinforcement component are engaged with the angle steel to be reinforced, the connection position of the connecting part and the first reinforcement component is located on the outside of one leg of the angle steel to be reinforced, and the connection position of the connecting part and the second reinforcement component is located on the outside of the other leg of the angle steel to be reinforced. When reinforcing the angle steel to be reinforced, there is no need to perform damaging operations such as drilling or welding on the angle steel to be reinforced, thereby avoiding the weakening of the original cross section of the angle steel to be reinforced and the problem of stress concentration. It also avoids the safety risks to construction personnel caused by high-altitude operations such as drilling and welding, and improves the safety of high-altitude construction operations at the reinforcement position.

[0021] 2. The angle steel reinforcement device of the present invention can be arranged in multiple ways along the length of the angle steel to be reinforced, and multiple reinforcement components can be arranged. The second reinforcement component matches the reinforcement components and is equipped with an elastic connector. While reinforcing the angle steel of the transmission tower, it can evenly distribute the bending and torsional moments generated by the external influence on the angle steel of the transmission tower, thereby ensuring the stability of the transmission tower during use. When the angle steel of the transmission tower deforms under load, the first and second reinforcement components can restrict the movement of the angle steel and realize the energy dissipation and vibration reduction effect through the elastic connector, reducing fatigue damage to the angle steel and providing better reinforcement for the inner side of the angle steel.

[0022] 3. The angle steel reinforcement device of the present invention is provided with a cantilever, and a connecting hook is rotatably connected to one end of the cantilever. In use, the connecting hooks of two angle steel reinforcement devices set diagonally can be hooked together. When the angle steel is impacted, the contact surface between the two connecting hooks will convert part of the impact energy into heat energy due to mutual friction. After the impact force is unloaded, the contact surface between the two connecting hooks will generate friction again, converting part of the stored energy into frictional heat energy and dissipating it. This can play a better role in buffering and vibration reduction for the angle steel. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the first reinforcing member, the second reinforcing member, and the angle steel to be reinforced in Embodiment 1 of the present invention.

[0026] Figure 3 This is a schematic diagram of the first reinforcing component structure in Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the second reinforcing component structure in Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the rigid connector structure of Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic diagram of the elastic connector structure of Embodiment 1 of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection hook and cantilever in Embodiment 1 of the present invention;

[0031] Figure 8 This is a schematic diagram of the two connecting hooks engaging in Embodiment 1 of the present invention;

[0032] Figure 9 This is a schematic diagram of the cooperation of the angle steel reinforcement device arranged diagonally in Embodiment 2 of the present invention;

[0033] Among them, 1. First reinforcing component, 1-1. Reinforcing angle steel, 1-2. First reinforcing part, 1-3. Second reinforcing part, 2. Angle steel to be reinforced, 3. Second reinforcing component, 3-1. Third reinforcing part, 3-2. Fourth reinforcing part, 3-3. Connecting part, 4. Bolt, 5. Rigid connector, 5-1. Connector support, 5-2. Connector sleeve, 5-3. First ear plate, 6. Elastic connector, 6-1. Protective sleeve, 6-2. Piston, 6-3. Piston rod, 6-4. Metal disc, 6-5. Spring, 7. Connecting bolt, 8. Bolt, 9. Base plate, 10. Cantilever, 11. Connecting hook, 12. Rotating shaft, 13. Fixing groove, 14. Locking pin, 15. Locking tongue, 16. Fixing nut. Detailed Implementation

[0034] Example 1

[0035] This embodiment provides a device for reinforcing angle steel of transmission towers, such as... Figures 1-3 As shown, it includes a first reinforcing member 1 made of steel. The first reinforcing member 1 includes a reinforcing angle steel 1-1, which is arranged along the length of the angle steel to be reinforced. Multiple reinforcing components are arranged at the corner positions of the reinforcing angle steel 1-1. The multiple reinforcing components are distributed along the length of the reinforcing angle steel. The reinforcing components include a first reinforcing part 1-2 and a second reinforcing part 1-3 that are perpendicular to each other. The first reinforcing part 1-2, the second reinforcing part 1-3 and the reinforcing angle steel 1-1 together form a cross-shaped structure. The first reinforcing part 1-2 and the second reinforcing part 1-3 are welded and fixed to the reinforcing angle steel 1-1. The first reinforcing part 1-2 is perpendicular to one leg of the reinforcing angle steel 1-1, and the second reinforcing part 1-3 is perpendicular to the other leg of the reinforcing angle steel 1-1, forming a cross-shaped structure.

[0036] The first reinforcing part 1-2 and the second reinforcing part 1-3 are respectively used to fit against the outer sides of the two limbs of the angle steel 2 to be reinforced, and both the first reinforcing part 1-2 and the second reinforcing part 1-3 adopt a long strip plate structure, the length of which is greater than the width of the limbs of the angle steel 2 to be reinforced.

[0037] After the first reinforcing part 1-2 and the second reinforcing part 1-3 are attached to the outer side of the angle steel 2 to be reinforced, the first reinforcing part has a portion extending to the outside of one limb of the angle steel 2 to be reinforced, and this portion is set at a set obtuse angle with the first reinforcing part 1-2 and is provided with a first fixing hole. The second reinforcing part 1-3 has a portion extending to the outside of the other limb of the angle steel 2 to be reinforced, and this portion is set at a set obtuse angle with the second reinforcing part 1-3 and is provided with a first fixing hole.

[0038] like Figures 1-2 , Figure 4 As shown, the transmission tower angle steel reinforcement device also includes multiple second reinforcement components 3. Each reinforcement component corresponds to one second reinforcement component 3, therefore there are two second reinforcement components 3, namely second reinforcement component I and second reinforcement component II. The second reinforcement component 3 adopts a right-angled triangular structure, including a third reinforcement part 3-1 and a fourth reinforcement part 3-2 that are perpendicular to each other. The third reinforcement part 3-1 and the fourth reinforcement part 3-2 are respectively used to fit against the inner surfaces of the two legs of the angle steel 2 to be reinforced. A connecting part 3-3 is provided between the reinforcing parts 3-2. The two ends of the connecting part 3-3 are provided with second fixing holes. The second fixing hole at one end is used to cooperate with the first fixing hole of the first reinforcing part 1-2. The end of the connecting part on this side can be fixed to the first reinforcing part 1-2 through the second fixing hole and the first fixing hole. The second fixing hole at the other end of the connecting part 3-3 is used to cooperate with the first fixing hole of the second reinforcing part 1-3. The end of the connecting part 3-3 on this side can be fixed to the second reinforcing part 1-3 through the second fixing hole and the first fixing hole.

[0039] Furthermore, the third reinforcing part 3-1, the fourth reinforcing part 3-2, and the connecting part 3-3 are all made of steel.

[0040] After the first reinforcing member 1 and the second reinforcing member 3 are engaged with the angle steel to be reinforced, the connection position of the connecting part 3-3 and the first reinforcing part 1-2 is located on the outside of one limb of the angle steel to be reinforced 2, and the connection position of the connecting part 3-3 and the second reinforcing part 1-3 is located on the outside of the other limb of the angle steel to be reinforced 2.

[0041] With this setup, when reinforcing the angle steel 2, there is no need to perform damaging operations such as drilling or welding, thus avoiding the weakening of the original angle steel section and stress concentration. It also avoids the safety risks to construction workers caused by high-altitude operations such as drilling and welding. Combined with its prefabricated installation method, it improves the safety of high-altitude construction operations at the reinforcement location.

[0042] Moreover, this setup can flexibly adapt to various types and specifications of angle steel to be reinforced, improve the load-bearing capacity and rigidity of the reinforced angle steel, and at the same time, it does not require the reinforcement device to have high dimensional accuracy, making it easier to assemble.

[0043] In this embodiment, the two ends of the connecting part 3-3 are detachably and fixedly connected to the first reinforcing part 1-2 and the second reinforcing part 1-3 by threaded fasteners. The threaded fasteners are bolts 4 and nuts. After the bolts 4 pass through the first fixing hole and the second fixing hole, the fixing nuts are tightened to realize the detachable fixation of the connecting part 3-3 to the first reinforcing part 1-2 and the second reinforcing part 1-3.

[0044] Two rigid connectors 5 and one elastic connector 6 are provided in the space between the third reinforcement part 3-1, the fourth reinforcement part 3-2 and the connecting part 3-3. The two rigid connectors 5 are the first rigid connector and the second rigid connector, respectively.

[0045] One end of the first rigid connector is fixedly connected to the third reinforcing part 3-1, and the other end is fixed to the connector. One end of the second rigid connector is fixedly connected to the fourth reinforcing part 3-2, and the other end is fixed to the connector. One end of the elastic connector 6 is hinged to the connector, and the other end abuts against the inner side of the connecting part 3-3.

[0046] The first rigid connector and the second rigid connector have the same structure. Taking the first rigid connector as an example for explanation:

[0047] like Figure 5 As shown, the first rigid connector includes a connector support 5-1 and a connector sleeve 5-2 arranged coaxially. The connector support 5-1 and the connector sleeve 5-2 are welded and fixed. One end of the connector sleeve 5-2 is welded and fixed to the connector support 5-1, and the other end is provided with two first ear plates 5-3. The connector passes through the two first ear plates 5-3 and is welded and fixed to the first ear plates 5-3.

[0048] The structure of the second rigid connector is the same as that of the first rigid connector, and will not be described again here. The connector passes through the two lugs of the second rigid connector and is welded and fixed to the lugs.

[0049] like Figure 6 As shown, the elastic connector includes a protective sleeve 6-1. Preferably, the protective sleeve 6-1 is made of existing fiber-reinforced composite material. A piston 6-2 is provided inside the protective sleeve 6-1. The piston 6-2 is slidably connected to the protective sleeve 6-1 and can reciprocate linearly along the axial direction of the protective sleeve 6-1.

[0050] The piston 6-2 divides the internal space of the protective sleeve 6-1 into a rod chamber and a rodless chamber. The rod chamber contains a piston rod 6-3. One end of the piston rod 6-3 is fixedly connected to the piston 6-2. After the piston rod 6-3 passes through one end of the protective sleeve 6-1, it is connected to a contact disc. The contact disc abuts against the inner side of the connecting part 3-3. Preferably, the contact disc is a metal disc 6-4.

[0051] The other end of the protective sleeve 6-1 is provided with two second ear plates. The connector passes through the two second ear plates of the protective sleeve 6-1 and is rotatably connected to the second ear plates.

[0052] The rodless cavity is provided with multiple elastic elements, one end of which is connected to the piston 6-2, and the other end is connected to the cavity surface of the rodless cavity.

[0053] In this embodiment, the elastic element is a spring 6-5. The axis of the spring 6-5 is parallel to the axis of the protective sleeve. One end of the spring is connected to the piston, and the other end is connected to the cavity surface of the rodless cavity.

[0054] The piston 6-2 can move within the protective sleeve 6-1 along the extension and retraction direction of the spring 6-5. When the angle steel 2 to be reinforced is deformed by wind load, the movement of the piston 6-2 plays a role in damping and buffering the deformation of the angle steel, preventing the angle steel from undergoing excessive deformation and causing instability.

[0055] Furthermore, the connector uses a connecting bolt 7, the shank of which is welded and fixed to the lugs of the two rigid connectors 5, and rotatably connected to the lugs of the elastic connector 6.

[0056] The outer surfaces of the connecting parts of the two second reinforcing members are fixedly connected to the same base plate 9 by bolts 8. The base plate 9 is fixedly connected to one end of the cantilever 10, such as... Figures 7-8 As shown, the other end of the cantilever 10 is provided with a rotating groove, and a connecting hook 11 is provided in the rotating groove. The connecting hook 11 adopts a V-shaped structure, including a first connecting hook part and a second connecting hook part set at a set obtuse angle. The connecting hook 11 is rotatably connected to the rotating shaft 12 at the corner position. The rotating shaft 12 is located in the rotating groove and is fixedly connected to the cantilever 10.

[0057] The second connecting hook is used to cooperate with the second connecting hook of the other connecting hooks. The first connecting hook acts as a hook tongue, and its upper end surface is provided with a fixing groove 13. One side of the fixing groove 13 extends to the end face of the first connecting hook. Correspondingly, a locking component is provided between the connecting hook 11 and the cantilever 10. The locking component is a locking pin 14. The axis of the locking pin 14 is perpendicular to the cantilever. The locking pin 14 passes through the cantilever 10 through the through hole provided in the cantilever 10 and is slidably connected to the cantilever 10. Therefore, the locking pin 14 can move linearly along its own axis. The locking pin 14 is provided with a keyway. The keyway cooperates with the protrusion at the through hole of the cantilever so that the locking pin 14 can only move linearly along its own axis and will not rotate around its own axis.

[0058] The locking pin 14 is provided with a locking tongue 15, which is perpendicular to the locking pin. The locking tongue 15 is used to cooperate with the fixing groove. When the connecting hook 11 rotates to the position where the fixing groove 13 matches the locking tongue 15, the locking pin 14 falls down and the locking tongue 15 is embedded in the fixing groove 13. The size of the fixing groove 13 is larger than the size of the locking tongue 15, so that the connecting hook 11 can generate a certain degree of wobbling. In this embodiment, the locking pin 14 has an external thread structure. The parts of the locking pin 14 extending above and below the cantilever 10 are threadedly connected to fixing nuts 16. When the locking tongue falls into the fixing groove 13, the fixing nuts 16 above and below are tightened, so that the fixing nuts 16 contact the cantilever 10, which can fix the locking pin 14 vertically and prevent the locking tongue 15 from falling out of the fixing groove 13.

[0059] When using the reinforcement device in this embodiment, such as Figure 9 As shown, the connecting hooks 11 of the two reinforcing devices located diagonally are engaged. The second connecting hooks of the two connecting hooks 11 are rotated to engage with each other. After engagement, there is a set gap between the second connecting hooks of the two connecting hooks 11. The locking pin 14 falls down and the locking tongue 15 falls into the fixing groove 13, which plays a role in fixing and constraining the connecting hooks 11.

[0060] When the angle steel is impacted, the two connecting hooks 11 are also impacted. Due to the gap between the two hooks, they wobble and come into contact. During the wobble, the contact surfaces rub against each other, converting some of the impact energy into heat energy. After the impact force is unloaded, due to inertia, the contact surfaces of the two hooks rub against each other again, converting some of the stored energy into frictional heat energy and dissipating it. When subjected to pulsating wind loads, this process repeats, providing better cushioning and vibration reduction for the angle steel.

[0061] The angle steel reinforcement device of this embodiment can be quickly installed at any position on the angle steel of the transmission tower, avoiding the cross-sectional weakening and stress concentration problems caused by drilling and welding of the main angle steel. At the same time, it reduces the danger of workers working at height. In addition, while reinforcing the angle steel of the transmission tower, multiple reinforcement devices can be arranged along the length of the angle steel, which can evenly distribute the bending and torsional moments generated by external influences on the angle steel of the transmission tower, thereby ensuring the stability of the transmission tower during use. When the angle steel of the transmission tower deforms under load, the first and second reinforcement components can restrict the movement of the angle steel and realize the energy dissipation and vibration reduction effect through the elastic connector, reducing fatigue damage to the angle steel, and providing better reinforcement for the inner side of the angle steel.

[0062] Example 2

[0063] This embodiment provides a transmission tower equipped with the transmission tower angle steel reinforcement device described in Embodiment 1. The connecting hooks 11 of the angle steel reinforcement device are connected to the two angle steels arranged diagonally. The rest of the transmission tower structure can be constructed using existing technology and will not be described in detail here.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for reinforcing angle steel of transmission towers, characterized in that, include: First reinforcing member: includes reinforcing angle steel, the reinforcing angle steel is provided with multiple reinforcing components, the reinforcing components include a first reinforcing part and a second reinforcing part respectively used to fit against the outer side of the two limbs of the angle steel to be reinforced; Second reinforcing member: used to cooperate with the reinforcing component, including a third reinforcing part and a fourth reinforcing part respectively for fitting with the inner side of the two limbs of the angle steel, and a connecting part is provided between the third reinforcing part and the fourth reinforcing part, and the two ends of the connecting part can be detachably connected to the outer ends of the first reinforcing part and the second reinforcing part respectively. Wherein, after the first reinforcing member and the second reinforcing member are fitted with the angle steel to be reinforced, the connection position of the connecting part and the first reinforcing part is located on the outside of one leg of the angle steel to be reinforced, and the connection position of the connecting part and the second reinforcing part is located on the outside of the other leg of the angle steel to be reinforced; The third reinforcing part is fixed to one end of the first rigid connector, the fourth reinforcing part is fixed to one end of the second rigid connector, the connecting part abuts against one end of the elastic connector, the first rigid connector and the second rigid connector are fixed by a connector, and the other end of the elastic connector is hinged to the connector. The outer side of the connecting part of the second reinforcing member is fixed to one end of the cantilever, and the other end of the cantilever is rotatably connected to a connecting hook. A locking component is provided between the connecting hook and the end of the cantilever. The connecting hook adopts a V-shaped structure, and its corner position is rotatably connected to the end of the cantilever via a pivot. One end of the connecting hook is used to cooperate with other connecting hooks, and the other end is provided with a fixing groove. The locking component adopts a locking pin, which is slidably connected to the cantilever vertically. The locking pin is provided with a locking tongue that matches the fixing groove. The locking pin can move along its own axis to switch between the locking tongue being inserted into and removed from the fixing groove. The locking pin is provided with a keyway, which cooperates with a protrusion at the through hole of the cantilever, so that the locking pin can only move linearly along its own axis and will not rotate around its own axis. The size of the fixing groove is larger than the size of the locking tongue, so that the connecting hook can produce a certain degree of wobbling. The elastic connector includes a protective sleeve, one end of which is hinged to the connector. A piston is slidably connected inside the protective sleeve, and the piston divides the internal space of the protective sleeve into a rod chamber and a rodless chamber. A piston rod is provided in the rod chamber, one end of which is connected to the piston. The other end of the piston rod extends to the outside of the protective sleeve and abuts against the inner side of the connector. An elastic element is provided in the rodless chamber, one end of which is connected to the piston and the other end of which is connected to the cavity surface of the rodless chamber. The connector uses a connecting bolt, which passes through the lugs at the ends of the first and second rigid connectors and is fixedly connected to the lugs. The end of the elastic connector is rotatably connected to the connecting bolt via the lugs.

2. The transmission tower angle steel reinforcement device as described in claim 1, characterized in that, The outer ends of the first and second reinforcement parts are provided with first fixing holes, and the two ends of the connecting part are provided with second fixing holes. The connecting part can be detachably and fixedly connected to the first and second reinforcement parts through the second fixing holes, the first fixing holes, and threaded fasteners.

3. The transmission tower angle steel reinforcement device as described in claim 1, characterized in that, The protective sleeve is made of fiber-reinforced composite material.

4. The transmission tower angle steel reinforcement device as described in claim 1, characterized in that, The piston rod has a contact frustum at its end extending to the outside of the protective sleeve, and the contact frustum abuts against the inner side of the connecting part.

5. A transmission tower, characterized in that, The transmission tower angle steel reinforcement device according to any one of claims 1-4 is provided.

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