A kind of anti-falling flexible guide rail tension detection mechanism of power transmission tower

Abstract

The present application relates to the technical field of power operation and maintenance detection, in particular to a kind of anti-falling flexible guide rail tension detection mechanism of transmission tower, including detection component and detection stretching component;Detection component end and detection stretching component fixed assembly, the end of detection component away from detection stretching component is fixed with the end of the anti-falling flexible guide rail of transmission tower;Detection stretching component away from detection component one end and transmission tower fixed support fixed.By detection stretching component tension flexible guide rail, when flexible guide rail bears tension, tension will be driven by pull rod to compress compression spring, so that movable plate is displaced along the axial direction of stud, at this time movable plate drives scale pointer synchronous displacement, by the corresponding position of scale pointer on the scale of auxiliary limiting plate, the tension value that flexible guide rail bears can be directly read, without additional external detection instrument, simple structure, it is convenient for construction site rapid detection.

Description

Technical Field

[0001] This invention relates to the field of power operation and maintenance testing technology, specifically to a tension testing mechanism for the anti-fall flexible guide rail of a transmission tower. Background Technology

[0002] With the development of my country's power industry, the angle steel towers and steel pipe towers of high-voltage transmission lines have become increasingly taller and larger, posing significant risks to power technicians during maintenance and repair. To ensure the safety of construction workers climbing poles and performing high-altitude operations, and to prevent falls during climbing, moving, and working at heights, fall-proof flexible guide rails are widely used in towers. The tension requirement for the steel strands of the flexible guide rails is 2.0–2.6 kN. Currently, during the actual installation of flexible guide rails, due to the lack of tension testing devices on the construction site, workers are unaware whether the tension of the steel strands meets the standard requirements, thus creating safety hazards and increasing operational risks. In view of this, we propose a tension testing mechanism for fall-proof flexible guide rails on transmission towers to solve the aforementioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to provide a tension detection mechanism for the anti-fall flexible guide rail of a power transmission tower, so as to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tension detection mechanism for a fall-prevention flexible guide rail of a power transmission tower, comprising a detection component and a tension detection component;

[0005] The end of the detection component is fixedly assembled with the detection tension component, and the end of the detection component away from the detection tension component is fixed to the end of the fall-prevention flexible guide rail of the transmission tower.

[0006] The end of the tension detection component away from the detection component is fixed to the fixed support of the transmission tower. The rotation of the tension detection component generates an axial tension on the detection component, thereby detecting the tension of the anti-fall flexible guide rail of the transmission tower.

[0007] In a preferred embodiment of the present invention, the detection component includes two opposing fixed plates, with two double-ended studs fixedly disposed between the two fixed plates, the two double-ended studs fixing the two fixed plates together. A movable plate is slidably disposed between the two fixed plates along the axial direction of the double-ended studs. A pull rod is fixedly disposed on the side of the movable plate away from the detection tension component. The pull rod movably passes through one of the fixed plates away from the detection tension component, and a ring is provided at the end of the pull rod. A compression spring is sleeved around the pull rod, and the compression spring is fixedly installed between the movable plate and the fixed plate away from the detection tension component. A lug is integrally provided on the fixed plate closer to the detection tension component.

[0008] As a preferred embodiment of the present invention, an auxiliary limiting plate is fixed together on the sides of the two fixed plates. The auxiliary limiting plate is provided with a scale. A straight groove is opened in the middle of the auxiliary limiting plate along the axial direction of the double-headed stud. A scale pointer is fixedly provided on the side of the movable plate near the auxiliary limiting plate. The scale pointer can slide along the inside of the straight groove.

[0009] As a preferred embodiment of the present invention, the detection tension assembly includes an inner threaded tube. Each of the inner annular surfaces near its two ends is provided with a thread, and the two threads are in opposite directions. Two connecting cylinders are slidably disposed inside the inner threaded tube along its axial direction, and the two connecting cylinders are distributed on both sides of the central axis of the inner threaded tube. The outer annular surface of the connecting cylinder is provided with several sets of mounting grooves, and each of the several sets of mounting grooves is provided with an alligator tooth block that slides radially along the connecting cylinder. The threads on the surface of the alligator tooth block are adapted to the threads on the inner annular surface of the inner threaded tube. In the initial state, the alligator tooth block does not mesh with the threads on the inner annular surface of the inner threaded tube. A connecting spring is fixedly disposed between the two connecting cylinders.

[0010] As a preferred embodiment of the present invention, each of the two connecting cylinders is fixedly provided with an end cover plate, which closes one end of the mounting groove, thereby positioning the alligator tooth block inside the mounting groove. A guide hole is provided through the center of the end cover plate, and a push rod is slidably provided inside the guide hole. A tensioning block is fixedly provided around the push rod.

[0011] As a preferred embodiment of the present invention, the alligator tooth block has a wedge surface and a first abutment surface on the side away from the inner annular surface of the inner wire tube. The first abutment surface is parallel to the axis of the connecting cylinder, and the end of the wedge surface is smoothly connected to the end of the first abutment surface. The outer annular surface of the tensioning block has a second abutment surface and a conical surface. The taper of the conical surface corresponds to the oblique angle of the wedge surface, and the second abutment surface is smoothly connected to the conical surface.

[0012] As a preferred embodiment of the present invention, both push rods are fitted with telescopic sleeves, and a U-shaped hanging ring is fixedly provided at the end of the telescopic sleeve away from the connecting cylinder, and a locking bolt is threaded inside the U-shaped hanging ring.

[0013] As a preferred embodiment of the present invention, the telescopic sleeve has a sleeve hole at one end near the connecting cylinder, and the telescopic sleeve is slidably sleeved around the push rod through the sleeve hole. The outer ring surface of the push rod near the telescopic sleeve has an annular groove, and a compression spring is sleeved around the annular groove. One end of the compression spring abuts against the groove wall at the end of the annular groove away from the connecting cylinder. An end cover plate two is fixedly provided at the end of the telescopic sleeve away from the U-shaped hanging ring, and the other end of the compression spring abuts against the side of the end cover plate two.

[0014] As a preferred embodiment of the present invention, the detection tension component further includes an elastic hoop, and at least one through hole is provided on the side of each of the plurality of mounting slots. The elastic hoop is fixedly disposed inside the plurality of through holes, and in the initial state, the elastic hoop is in a tension pre-tightened state.

[0015] As a preferred embodiment of the present invention, the end of the push rod away from the alligator tooth block movably passes through the connecting cylinder and extends between the two connecting cylinders. A limit ring is fixedly provided on the periphery of the end of the push rod that passes through the connecting cylinder. A pre-tightening spring is fixedly provided between the limit ring and the connecting cylinder. The pre-tightening spring is sleeved on the periphery of the push rod, and the elastic force of the pre-tightening spring is less than that of the compression spring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, by detecting the tension of the flexible guide rail by the tensioning component, when the flexible guide rail is subjected to tension, the tension will drive the movable plate to compress the spring through the pull rod, causing the movable plate to move axially along the double-ended stud. At this time, the movable plate drives the scale pointer to move synchronously. By observing the corresponding position of the scale pointer on the auxiliary limit plate scale, the tension value of the flexible guide rail can be read intuitively. No additional external testing instruments are required. The structure is simple and convenient for rapid testing on the construction site.

[0018] 2. In this invention, the ring at the end of the pull rod is fixed to the end of the fall-prevention flexible guide rail of the transmission tower. Then, the lug is inserted into one of the U-shaped hanging rings, and then a connecting spring is inserted into the insertion hole on the U-shaped hanging ring and the lug, thus forming a stable connection between the lug and the U-shaped hanging ring. Next, the other U-shaped hanging ring is pulled away from the inner thread tube. If the angle relationship of the alligator tooth block allows its own thread to mesh with the thread on the inner ring surface of the inner thread tube, the pulling force of the U-shaped hanging ring is transmitted to the tension block through the telescopic sleeve and push rod, causing the tension block to move axially along the connecting cylinder and the conical surface to slide relative to the wedge surface, thereby pushing the alligator tooth block to move along the inner wall of the mounting groove towards the thread on the inner ring surface of the connecting cylinder, and the alligator tooth block meshes with the inner thread tube.

[0019] 3. In this invention, when the alligator tooth block and the inner wire tube mesh with each other, the second abutment surface slides to the position of the first abutment surface, so that the second abutment surface abuts against the side of the alligator tooth block, and the alligator tooth block cannot move in the opposite direction, thus ensuring the stable meshing of the alligator tooth block and the connecting cylinder.

[0020] 4. In this invention, after the fall-prevention flexible guide rail is fixed, the locking bolt connected to the tower fixed support is pulled out, and the corresponding U-shaped hanging ring is disconnected from the tower fixed support. The compression spring releases its elastic potential energy, causing the telescopic sleeve to slide in the opposite direction. The pre-tightening spring releases its rebound force, causing the push rod, tension block, and limit ring to reset. At this time, the elastic hoop releases its elastic potential energy, pulling the alligator tooth block back to its initial position, releasing the engagement state between the alligator tooth block and the inner ring thread of the internal thread tube. The two connecting cylinders are instantly reset under the elastic force of the connecting spring, and the entire mechanism returns to its initial state. The detection mechanism can then be removed from the guide rail and fixed support for use in the next inspection, greatly reducing the reset time and improving the timeliness of the mechanism reset. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the detection component in this invention;

[0023] Figure 3 This is a schematic diagram of the structure of the tension detection component in this invention;

[0024] Figure 4 This is a schematic diagram of the side cross-section of the inner wire tube in this invention;

[0025] Figure 5 In this invention Figure 4 A magnified structural diagram of part A;

[0026] Figure 6 This is an exploded view of the telescopic sleeve and U-shaped hanging ring in this invention;

[0027] Figure 7 This is a side sectional view of the connecting cylinder and telescopic sleeve in this invention;

[0028] Figure 8 This is a detailed structural diagram of the connecting cylinder in this invention;

[0029] Figure 9 This is a schematic diagram of the alligator-type tooth block in this invention;

[0030] Figure 10 This is a schematic diagram of the through hole structure in this invention;

[0031] Figure 11 This is a schematic diagram of the tensioning block in this invention.

[0032] In the diagram: 100, Detection component; 101, Fixing plate; 102, Double-ended stud; 103, Hanging lug; 104, Movable plate; 105, Pull rod; 106, Compression spring; 107, Auxiliary limit plate; 108, Scale pointer; 200, Detection tension component; 201, Internal threaded tube; 202, Connecting cylinder; 203, Mounting groove; 204, Alligator jaw block; 2041, Wedge surface; 2042, Abutment surface one; 2043, Through hole; 2 05. End cover plate one; 206. Guide hole; 207. Push rod; 208. Tensioning block; 2081. Abutment surface two; 2082. Conical surface; 209. Elastic hoop; 2010. Limiting ring; 2011. Preload spring; 2012. Annular groove; 2013. Compression spring; 2014. Telescopic sleeve; 2015. Sleeve hole; 2016. End cover plate two; 2017. U-shaped hanging ring; 2018. Locking bolt; 2019. Connecting spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 11 The technical solution provided by the present invention specifically includes the following embodiments:

[0035] A tension detection mechanism for a fall-prevention flexible guide rail of a power transmission tower includes a detection component 100 and a tension detection component 200. The end of the detection component 100 is fixedly assembled with the tension detection component 200, and the end of the detection component 100 away from the tension detection component 200 is fixed to the end of the fall-prevention flexible guide rail of the power transmission tower. The end of the tension detection component 200 away from the detection component 100 is fixed to a fixed support of the power transmission tower. Rotation of the tension detection component 200 generates an axial tensile force on the detection component 100, thereby detecting the tension of the fall-prevention flexible guide rail of the power transmission tower.

[0036] For further details, please refer to [link / reference]. Figure 1 , Figure 2 As shown:

[0037] The detection assembly 100 includes two opposing fixed plates 101, with two double-ended studs 102 fixedly disposed between the two fixed plates 101, thus fixing the two fixed plates 101. A movable plate 104 is slidably disposed between the two fixed plates 101 along the axial direction of the double-ended studs 102. A pull rod 105 is fixedly disposed on the side of the movable plate 104 away from the detection tension assembly 200. The pull rod 105 movably passes through one fixed plate 101 away from the detection tension assembly 200, and a ring is provided at the end of the pull rod 105. A compression spring 10 is sleeved around the pull rod 105. 6. A compression spring 106 is fixedly installed between a movable plate 104 and a fixed plate 101 away from the detection tension component 200. The fixed plate 101 near the detection tension component 200 is integrally provided with a hanging ear 103. An auxiliary limiting plate 107 is fixedly fixed on the side of both fixed plates 101. The auxiliary limiting plate 107 is provided with a scale. A straight groove is opened in the middle of the auxiliary limiting plate 107 along the axial direction of the double-headed stud 102. A scale pointer 108 is fixedly provided on the side of the movable plate 104 near the auxiliary limiting plate 107. The scale pointer 108 can slide along the inside of the straight groove.

[0038] Specifically, by connecting the ring at the end of the tie rod 105 to the end of the fall-prevention flexible guide rail of the transmission tower, and then connecting both ends of the tension detection assembly 200 to the lug 103 and the tower fixed support respectively, the tension detection assembly 200 applies tension to the lug 103, causing the tie rod 105 to pull the movable plate 104 to slide axially along the two double-headed studs 102, and compressing the compression spring 106 to store elastic force. At the same time, the movable plate 104 also drives the scale pointer 108 to move together until the scale pointer 108 moves to the indicated scale range on the auxiliary limit plate 107, indicating that the tension of the fall-prevention flexible guide rail of the transmission tower meets the installation requirements.

[0039] For further details, please refer to [link / reference]. Figures 4 to 11 As shown:

[0040] The tensile testing assembly 200 includes an inner threaded tube 201. Each of the inner annular surfaces near its two ends has a thread, with the two threads having opposite helical directions. Two connecting cylinders 202 are slidably disposed inside the inner threaded tube 201 along its axial direction, and the two connecting cylinders 202 are distributed on both sides of the central axis of the inner threaded tube 201. The outer annular surface of each connecting cylinder 202 has several sets of mounting grooves 203, and each of the sets of mounting grooves 203 slides radially within the connecting cylinder 202. A jaw block 204 is provided, the threads on the surface of the jaw block 204 are adapted to the threads on the inner annular surface of the internal threaded tube 201, and initially, the jaw block 204 and the threads on the inner annular surface of the internal threaded tube 201 are not engaged. A connecting spring 2019 is fixedly provided between the two connecting cylinders 202, and an end cover plate 205 is fixedly provided on the back of each of the two connecting cylinders 202. The end cover plate 205 closes one end of the mounting groove 203, thereby fixing the jaw block 204. Located inside the mounting groove 203, a guide hole 206 is provided through the center of the end cover plate 205. A push rod 207 is slidably disposed inside the guide hole 206. A tensioning block 208 is fixedly disposed around the push rod 207. The alligator tooth block 204 has a wedge surface 2041 and a stop surface 2042 on the side away from the inner annular surface of the inner thread tube 201. The stop surface 2042 is parallel to the axis of the connecting cylinder 202. The ends of the wedge surface 2041 and the stop surface 2042 are smooth. The tensioning block 208 has a second abutment surface 2081 and a conical surface 2082 on its outer ring surface. The taper of the conical surface 2082 corresponds to the oblique angle of the wedge surface 2041, and the second abutment surface 2081 and the conical surface 2082 are smoothly connected. The outer periphery of the two push rods 207 is fitted with a telescopic sleeve 2014. A U-shaped hanging ring 2017 is fixedly installed at the end of the telescopic sleeve 2014 away from the connecting cylinder 202. The U-shaped hanging ring 2017 is threaded with a locking bolt 2018.

[0041] Specifically, when not in use, both connecting cylinders 202 are located at the end of the inner thread tube 201 under the elastic compression of the connecting spring 2019. When it is necessary to test the tension of the fall-prevention flexible guide rail of the transmission tower, firstly, fix the ring at the end of the pull rod 105 to the end of the fall-prevention flexible guide rail of the transmission tower. Then, insert the lug 103 into one of the U-shaped hanging rings 2017, and then insert the connecting spring 2019 into the insertion hole on the U-shaped hanging ring 2017 and the lug 103 to form a stable connection between the lug 103 and the U-shaped hanging ring 2017. Then, insert the other U-shaped hanging ring 2017... Pulling away from the internal threaded tube 201, if the angle of the alligator clip 204 allows its threads to mesh with the threads on the inner ring surface of the internal threaded tube 201, the pulling force from the U-shaped hanging ring 2017 is transmitted to the tensioning block 208 through the telescopic sleeve 2014 and push rod 207. This causes the tensioning block 208 to move axially along the connecting cylinder 202, and the conical surface 2082 to slide relative to the wedge surface 2041. This pushes the alligator clip 204 along the inner wall of the mounting groove 203 towards the threads on the inner ring surface of the connecting cylinder 202, until the alligator clip 204 meshes with the internal threaded tube 201. At this point, the two abutment surfaces... 2081 slides to the position of the first abutment 2042, thus abutting against the side of the alligator tooth block 204 through the second abutment 2081. The alligator tooth block 204 cannot move in the opposite direction, ensuring the stable meshing of the alligator tooth block 204 and the connecting cylinder 202. During testing, the inner thread tube 201 is rotated. Since the two threads on the inner ring surface of the inner thread tube 201 are in opposite directions, after the inner thread tube 201 is rotated, under the meshing of the alligator tooth block 204 and the threads on the inner ring surface of the inner thread tube 201, the two connecting cylinders 202 move towards the center and opposite each other, compressing the connecting spring 2019 to generate elastic potential energy. The movement of the two connecting cylinders 202 drives the push rod 2. 07. The telescopic sleeve 2014, U-shaped hanging ring 2017, and locking bolt 2018 move together, thereby applying a pulling force to the hanging ear 103. The pull rod 105 then pulls the movable plate 104 and the scale pointer 108 to move axially away from the hanging ear 103 along the two double-headed studs 102, and compresses the compression spring 106. When the scale pointer 108 moves into the scale range on the surface of the auxiliary limit plate 107, it indicates that the tension of the anti-fall flexible guide rail is within the required range. The rotation of the inner thread tube 201 is stopped, and an anti-loosening or anti-theft nut is immediately installed on the anti-fall flexible guide rail to fix it.

[0042] For further details, please refer to [link / reference]. Figure 7 , Figure 9 As shown:

[0043] The telescopic sleeve 2014 has a sleeve hole 2015 at one end near the connecting cylinder 202. The telescopic sleeve 2014 is slidably sleeved around the push rod 207 through the sleeve hole 2015. The outer ring surface of the push rod 207 near the telescopic sleeve 2014 has an annular groove 2012. A compression spring 2013 is sleeved around the annular groove 2012. One end of the compression spring 2013 abuts against the groove wall of the annular groove 2012 away from the connecting cylinder 202. An end cover plate 2016 is fixedly installed at the end of the telescopic sleeve 2014 away from the U-shaped hanging ring 2017. The other end of the compression spring 2013 abuts against the side of the end cover plate 2016.

[0044] Specifically, if initially, the angle of the alligator-type toothed block 204 prevents its threads from directly engaging with the threads on the inner ring surface of the inner threaded tube 201, then when a pulling force is applied to the U-shaped hanging ring 2017, the threads on the alligator-type toothed block 204 and the threads on the inner ring surface of the inner threaded tube 201 will abut against each other, preventing the alligator-type toothed block 204 from sliding directly along the mounting groove 203 and thus preventing engagement. In this case, after the U-shaped hanging ring 2017 drives the telescopic sleeve 2014 to slide to its maximum stroke position, the inner threaded tube 201 is rotated appropriately. This causes relative rotation between the inner threaded tube 201 and the connecting cylinder 202 until the threads of the inner threaded tube 201 rotate to align with the threads of the alligator-type toothed block 204. Then, the rebound force of the compression spring 2013 is released, pushing the push rod 207 and the tensioning block 208 to move axially along the connecting cylinder 202, causing the tensioning block 208 to push the alligator-type toothed block 204 outward to complete the engagement.

[0045] For further details, please refer to [link / reference]. Figure 7 , Figure 9 , Figure 10 As shown:

[0046] The tension detection assembly 200 also includes an elastic hoop 209. Each of the several mounting slots 203 has at least one through hole 2043 on its side. The elastic hoop 209 is fixedly installed inside the several through holes 2043. In the initial state, the elastic hoop 209 is in a tensioned pre-tightened state. The end of the push rod 207 away from the alligator tooth block 204 moves through the connecting cylinder 202 and extends between the two connecting cylinders 202. A limit ring 2010 is fixedly installed on the periphery of the end of the push rod 207 that passes through the connecting cylinder 202. A pre-tightening spring 2011 is fixedly installed between the limit ring 2010 and the connecting cylinder 202. The pre-tightening spring 2011 is sleeved on the periphery of the push rod 207. The elastic force of the pre-tightening spring 2011 is less than the elastic force of the compression spring 2013.

[0047] Specifically, when the alligator jaw block 204 is pressed by the tension block 208 and moves away from the center of the connecting cylinder 202, the alligator jaw block 204 will cause the elastic hoop 209 to stretch further. After the fall-prevention flexible guide rail is fixed, the locking bolt 2018 connected to the tower fixed support is pulled out, and the corresponding U-shaped hanging ring 2017 is disconnected from the tower fixed support. The compression spring 2013 releases its elastic potential energy, causing the telescopic sleeve 2014 to slide in the opposite direction. The preload spring 2011 releases its rebound force, causing... Push rod 207, tension block 208, and limit ring 2010 reset. At this time, elastic hoop 209 releases elastic potential energy to pull alligator tooth block 204 back to its initial position, releasing the meshing state between alligator tooth block 204 and the inner ring thread of inner thread tube 201. The two connecting cylinders 202 instantly reset under the elastic force of connecting spring 2019, and the entire mechanism returns to its initial state. The testing mechanism can then be removed from the guide rail and fixed support for future testing, greatly reducing the reset time and improving the timeliness of mechanism reset.

[0048] The working principle of the anti-fall flexible guide rail tension detection mechanism for power transmission towers in this solution is as follows:

[0049] In use, both connecting cylinders 202 are positioned at the ends of the inner threaded tube 201 under the elastic compression of the connecting spring 2019. When it is necessary to test the tension of the fall-prevention flexible guide rail of the transmission tower, firstly, fix the ring at the end of the tie rod 105 to the end of the fall-prevention flexible guide rail of the transmission tower. Then, insert the lug 103 into one of the U-shaped hanging rings 2017, and then insert the connecting spring 2019 into the insertion hole on the U-shaped hanging ring 2017 and the lug 103, thereby forming a stable connection between the lug 103 and the U-shaped hanging ring 2017. After fixing the connection, pull another U-shaped hook 2017 away from the internal thread tube 201. If, at this time, the angle of the alligator tooth block 204 allows its threads to mesh with the threads on the inner ring surface of the internal thread tube 201, the pulling force from the U-shaped hook 2017 is transmitted to the tension block 208 through the telescopic sleeve 2014, the compression spring 2013, and the push rod 207. This causes the tension block 208 to move axially along the connecting cylinder 202, and the conical surface 2082 to slide relative to the wedge surface 2041, thereby pushing the alligator tooth block 204 along... The inner wall of the mounting groove 203 moves towards the inner annular thread of the connecting cylinder 202 until the alligator tooth block 204 and the inner threaded tube 201 mesh together. At this time, the second abutment surface 2081 just slides to the position of the first abutment surface 2042, so that the second abutment surface 2081 abuts against the side of the alligator tooth block 204, and the alligator tooth block 204 cannot move in the opposite direction, thus ensuring the stable meshing of the alligator tooth block 204 and the connecting cylinder 202. During this process, the elastic clamp 209 is further stretched to accumulate elastic potential energy. At the same time, the push rod 207 drives the limit ring 2010 together. The movement causes the preload spring 2011 to be compressed and store elasticity. Then, the U-shaped hanging ring 2017 is pulled further, and the push rod 207 and the telescopic sleeve 2014 slide relative to each other. The compression spring 2013 is compressed and stores force until the telescopic sleeve 2014 reaches the maximum sliding stroke position of the push rod 207. Then, the U-shaped hanging ring 2017 is put on the outside of the iron tower fixed support. Then, a locking bolt 2018 is taken out and inserted into the insertion hole on the U-shaped hanging ring 2017 and the iron tower fixed support, thereby connecting the U-shaped hanging ring 2017 and the iron tower fixed support.It should be noted that if initially, the angle of the alligator clip 204 prevents its threads from directly engaging with the threads on the inner annular surface of the internal threaded tube 201, then when tension is applied to the U-shaped hanging ring 2017, the threads on the alligator clip 204 and the threads on the inner annular surface of the internal threaded tube 201 will abut against each other, preventing the alligator clip 204 from sliding directly along the mounting groove 203 and thus preventing engagement. In this case, when the U-shaped hanging ring 2017 drives the telescopic sleeve 2014 to slide to its maximum range... After the position is reached, rotate the inner thread tube 201 appropriately. This causes relative rotation between the inner thread tube 201 and the connecting cylinder 202 until the threads of the inner thread tube 201 align with the threads of the alligator jaw block 204. At this point, because the force of the clamping spring 2013 is greater than the force of the preload spring 2011, the release of the clamping spring 2013 pushes the push rod 207 and the tensioning block 208 to move axially along the connecting cylinder 202. This causes the tensioning block 208 to push the alligator jaw block 204 outwards to complete the engagement.

[0050] During testing, rotating the internal threaded tube 201 causes the two threads on its inner ring surface to face opposite directions. As the tube rotates, the alligator-type threaded block 204 engages with the threads on the inner ring surface of the tube, causing the two connecting cylinders 202 to move towards the center. This compresses the connecting spring 2019, generating elastic potential energy. The movement of the two connecting cylinders 202 drives the push rod 207, telescopic sleeve 2014, U-shaped hanging ring 2017, and locking bolt 2018 to move together, thus engaging the hanging lug 103. When a pulling force is applied, the pull rod 105 pulls the movable plate 104 and the scale pointer 108 to move away from the hanging ear 103 along the axis of the two double-headed studs 102, and compresses the compression spring 106. When the scale pointer 108 moves into the scale range on the surface of the auxiliary limit plate 107, it indicates that the tension of the anti-fall flexible guide rail is within the required range. Then the rotation of the inner thread tube 201 is stopped, and an anti-loosening or anti-theft nut is immediately installed on the anti-fall flexible guide rail to fix it.

[0051] After the fall-prevention flexible guide rail is fixed, the locking bolt 2018 connected to the tower fixed support is pulled out. The corresponding U-shaped hanging ring 2017 is then disconnected from the tower fixed support. The compression spring 2013 releases its elastic potential energy, causing the telescopic sleeve 2014 to slide in the opposite direction. The pre-tension spring 2011 releases its rebound force, causing the push rod 207, tension block 208, and limit ring 2010 to reset. At this time, the elastic hoop 209 releases its elastic potential energy, pulling the alligator tooth block 204 back to its initial position, releasing the meshing state between the alligator tooth block 204 and the inner ring thread of the inner thread tube 201. The two connecting cylinders 202 are instantly reset under the elastic force of the connecting spring 2019, and the entire mechanism returns to its initial state. The testing mechanism can then be removed from the guide rail and fixed support for future testing, greatly reducing the reset time and improving the timeliness of the mechanism's reset.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A tension detection mechanism for a fall-prevention flexible guide rail of a power transmission tower, characterized in that: Includes a detection component (100) and a tensile detection component (200); The end of the detection component (100) is fixedly assembled with the detection tension component (200), and the end of the detection component (100) away from the detection tension component (200) is fixed to the end of the anti-fall flexible guide rail of the transmission tower. The end of the detection tension component (200) away from the detection component (100) is fixed to the fixed support of the transmission tower. The rotation of the detection tension component (200) generates an axial tension on the detection component (100), thereby detecting the tension of the anti-fall flexible guide rail of the transmission tower.

2. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 1, characterized in that: The detection assembly (100) includes two opposing fixed plates (101), and two double-ended studs (102) are fixedly disposed between the two fixed plates (101). The two double-ended studs (102) fix the two fixed plates (101) in a fixed manner. A movable plate (104) is slidably disposed between the two fixed plates (101) along the axial direction of the double-ended studs (102). A pull rod (105) is fixedly disposed on the side of the movable plate (104) away from the detection tension assembly (200). A rod (105) is movably passed through a fixed plate (101) away from the detection tension assembly (200), and a ring is provided at the end of the rod (105). A compression spring (106) is sleeved around the rod (105). The compression spring (106) is fixedly installed between the movable plate (104) and a fixed plate (101) away from the detection tension assembly (200). A hanging lug (103) is integrally provided on a fixed plate (101) close to the detection tension assembly (200).

3. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 2, characterized in that: An auxiliary limiting plate (107) is fixed together on the sides of the two fixed plates (101). The auxiliary limiting plate (107) is provided with a scale. A straight groove is opened in the middle of the auxiliary limiting plate (107) along the axial direction of the double-headed stud (102). A scale pointer (108) is fixedly provided on the side of the movable plate (104) near the auxiliary limiting plate (107). The scale pointer (108) can slide along the inside of the straight groove.

4. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 3, characterized in that: The detection tension assembly (200) includes an inner thread tube (201). Each inner thread tube (201) has a thread on its inner annular surface near both ends, and the two threads have opposite spiral directions. Two connecting cylinders (202) are slidably arranged inside the inner thread tube (201) along its axial direction. The two connecting cylinders (202) are distributed on both sides of the central axis of the inner thread tube (201). The outer annular surface of the connecting cylinder (202) has several sets of mounting grooves (203). Each set of mounting grooves (203) has an alligator tooth block (204) slidably arranged radially along the connecting cylinder (202). The threads on the surface of the alligator tooth block (204) are adapted to the threads on the inner annular surface of the inner thread tube (201). In the initial state, the alligator tooth block (204) does not mesh with the threads on the inner annular surface of the inner thread tube (201). A connecting spring (2019) is fixedly arranged between the two connecting cylinders (202).

5. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 4, characterized in that: Each of the two connecting cylinders (202) is fixedly provided with an end cover plate (205) on its opposite side. The end cover plate (205) closes one end of the mounting groove (203), thereby positioning the alligator tooth block (204) inside the mounting groove (203). A guide hole (206) is provided through the center of the end cover plate (205). A push rod (207) is slidably provided inside the guide hole (206). A tensioning block (208) is fixedly provided around the push rod (207).

6. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 5, characterized in that: The alligator-shaped tooth block (204) has a wedge surface (2041) and a first abutment surface (2042) on one side away from the inner annular surface of the inner wire tube (201). The first abutment surface (2042) is parallel to the axis of the connecting cylinder (202). The end of the wedge surface (2041) is smoothly connected to the end of the first abutment surface (2042). The outer annular surface of the tensioning block (208) has a second abutment surface (2081) and a conical surface (2082). The taper of the conical surface (2082) corresponds to the oblique angle of the wedge surface (2041), and the second abutment surface (2081) is smoothly connected to the conical surface (2082).

7. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 6, characterized in that: Both push rods (207) are fitted with telescopic sleeves (2014), and a U-shaped hanging ring (2017) is fixedly provided at the end of the telescopic sleeve (2014) away from the connecting cylinder (202). The U-shaped hanging ring (2017) is threaded with a locking bolt (2018).

8. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 7, characterized in that: The telescopic sleeve (2014) has a sleeve hole (2015) at one end near the connecting cylinder (202). The telescopic sleeve (2014) is slidably sleeved around the push rod (207) through the sleeve hole (2015). The outer ring surface of the push rod (207) near the telescopic sleeve (2014) has an annular groove (2012). A compression spring (2013) is sleeved around the annular groove (2012). One end of the compression spring (2013) abuts against the groove wall of the annular groove (2012) away from the connecting cylinder (202). An end cover plate two (2016) is fixedly installed at the end of the telescopic sleeve (2014) away from the U-shaped hanging ring (2017). The other end of the compression spring (2013) abuts against the side of the end cover plate two (2016).

9. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 8, characterized in that: The detection tension assembly (200) also includes an elastic hoop (209). Each of the mounting slots (203) has at least one through hole (2043) on its side. The elastic hoop (209) is fixedly installed inside the through holes (2043), and in the initial state, the elastic hoop (209) is in a tension pre-tightened state.

10. The tension detection mechanism for the anti-fall flexible guide rail of a transmission tower according to claim 9, characterized in that: The end of the push rod (207) away from the alligator tooth block (204) moves through the connecting cylinder (202) and extends between the two connecting cylinders (202). A limiting ring (2010) is fixedly provided on the periphery of the end of the push rod (207) that passes through the connecting cylinder (202). A pre-tightening spring (2011) is fixedly provided between the limiting ring (2010) and the connecting cylinder (202). The pre-tightening spring (2011) is sleeved on the periphery of the push rod (207). The elastic force of the pre-tightening spring (2011) is less than that of the compression spring (2013).

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