A power transmission tower anti-falling system and a commutator

Abstract

This invention relates to the field of power transmission tower operation technology, and discloses a power transmission tower fall prevention system and a commutator. The power transmission tower fall prevention system includes: a guide rail assembly connected to the main tower structure; the guide rail assembly has a locking space extending along a first direction and multiple slots spaced apart along the first direction; a locking assembly engaged in the locking space and capable of sliding along the first direction, and the locking assembly has mounting holes; a limiting assembly installed within the locking space; a pawl hinged to the inner side of the locking assembly with an axis extending along a second direction; two ends of an elastic member connected to the free end of the pawl and the locking assembly respectively; a rotating abutment hinged to the locking assembly with an axis extending along the second direction; and a fixing unit located on the outer side of the locking assembly, connected to the rotating abutment. This invention provides a power transmission tower fall prevention system that effectively prevents workers from falling while operating power transmission towers, and offers higher safety.

Description

Technical Field

[0001] This invention relates to the field of power transmission tower operation technology, and in particular to a power transmission tower anti-fall system and commutator. Background Technology

[0002] In power transmission tower operations, to prevent workers from accidentally falling from heights, fall arrest devices are usually installed and connected to the workers' safety belts. When a worker shows signs of falling, the fall arrest device will provide tension to the safety belt to prevent the worker from falling.

[0003] Currently, typical fall arrest devices attach a ladder to the main structure of a power transmission tower using clamps. A limiter is slidably engaged inside the ladder, and a safety belt is connected to the limiter, which locks the ladder in place to prevent workers from falling. However, during long-term field operation, the difference in natural frequencies between the ladder and the tower structure can cause asynchronous vibrations, leading to wear and even detachment at the connection point, posing a significant safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a fall protection system and commutator for power transmission towers, which can effectively prevent workers from falling while operating power transmission towers, and is safer to use.

[0005] To achieve the above objectives, the present invention provides a power transmission tower fall protection system having a first direction and a second direction that intersect perpendicularly, comprising: The main material of the pole / tower extends along a first direction; A guide rail assembly is connected to the main tower material. The guide rail assembly has a fastening space extending in a first direction and a plurality of slots spaced apart in the first direction. A fastening assembly, which is snapped into the fastening space and can slide along a first direction, and the fastening assembly has a mounting hole; A limiting component is installed within the fastening space to prevent the fastening component from sliding down in a preset direction; A fall arrestor assembly includes a locking unit and a fixing unit. The locking unit includes a pawl, an elastic element, and a rotating abutment. The pawl is hinged to the inner side of the fastening assembly along an axis extending in a second direction. The two ends of the elastic element are respectively connected to the free end of the pawl and the fastening assembly. The rotating abutment is hinged to the fastening assembly along an axis extending in the second direction. The rotating abutment passes through the mounting hole and can rotate to abut against the pawl. When the rotating abutment abuts against the pawl and rotates, the free end of the pawl can engage in the slot. The fixing unit is located on the outer side of the fastening assembly and is connected to the rotating abutment. The fixing unit is used to connect a safety belt.

[0006] Preferably, the guide rail assembly includes two bending units, which are symmetrically arranged on both sides of the first direction and connected to the main pole material. One bending unit has a fastening space on the side facing away from the other bending unit. The side wall of the bending unit near the fastening component has a plurality of slots spaced apart along the first direction. The fastening component is engaged in the fastening space of the two bending units.

[0007] Preferably, the fastening assembly includes two fastening units, which are hinged together by an axis extending in a first direction. One end of each of the two fastening units is provided with a snap-fit ​​portion, which is snapped into the two fastening spaces respectively. Each of the two fastening units is provided with a mounting hole, and a set of locking units is provided for each mounting hole.

[0008] Preferably, the snap-fit ​​portion is equipped with a roller, and the snap-fit ​​portion abuts against the inner wall of the snap-fit ​​space via the roller.

[0009] Preferably, the two fastening units are provided with matching locking grooves and locking buckles on one side of their hinge axis in the first direction.

[0010] Preferably, the fastening unit includes a support member and two half-shells, the two half-shells are respectively disposed at both ends of the support member along a first direction, the two half-shells opposite each other in the second direction are hinged with an axis extending along the first direction, the half-shells are provided with the snap-fit ​​portion, and the mounting hole is opened in the support member.

[0011] Preferably, the support member and the two half-shells are connected by connecting screws extending along the first direction.

[0012] Preferably, the fixing unit includes a fixed hook, a movable hook, and a swinging member. The first end of the fixed hook is hinged between the two ends of the movable hook. The second end of the fixed hook and the first end of the movable hook are respectively provided with a matching groove and a protrusion. A receiving space for accommodating a seat belt is formed between the fixed hook and the movable hook. The swinging member is connected to the second end of the movable hook and is connected to the rotating abutment member.

[0013] Preferably, the limiting component includes a support and a limiting member. The support is installed on the side of the main pole material near the guide rail assembly, and the limiting member is hinged to the support. When the limiting member rotates to a preset angle, the limiting member is located in the fastening space and embedded in the slot.

[0014] The present invention provides a commutator, including a fixed disk, a rotating disk, and a commutator guide rail. The fixed disk is used to fix the ends of multiple main tower members of the above-mentioned power transmission tower fall protection system. The multiple main tower members are symmetrically distributed about the central axis of the fixed disk. The main tower members extend radially along the fixed disk. The rotating disk rotates coaxially with the fixed disk. The commutator guide rail is fixed to the rotating disk and can rotatably connect to multiple different guide rail assemblies.

[0015] Compared with the prior art, the fall protection system for power transmission towers according to an embodiment of the present invention has the following advantages: The guide rail assembly is connected to the main structure of the transmission tower, so that the fixed frequency of the guide rail assembly and the main structure of the tower are basically the same, which makes it less likely to generate asynchronous vibration. The guide rail assembly and the main structure of the tower are less likely to wear off and fall off, reducing safety hazards.

[0016] Connect the worker's safety belt to the fixing unit. Since the fixing unit is connected to the rotating abutment, and the rotating abutment is hinged to the fastening assembly, when the worker moves and pulls the safety belt, the force can be transmitted sequentially to the fixing unit, the rotating abutment, and the fastening assembly. The fastening assembly can slide in the fastening space of the guide rail assembly, or the fastening assembly can be directly removed from the guide rail assembly and the snap-fit ​​position can be changed. After determining the working position, operate the limiting component below the fastening assembly to prevent the fastening assembly from sliding down. At this time, the pawl is restricted by the elastic element and does not engage in the slot.

[0017] When a worker is about to fall, the safety belt is pulled downwards, causing the fixing unit to swing downwards. The swinging of the fixing unit causes the rotating abutment to rotate downwards along its hinge axis. The rotating abutment abuts against the pawl, and the pawl rotates along its hinge axis. The elastic element is stretched, and the pawl locks into the slot of the guide rail assembly. The fall arrestor provides an upward pull on the safety belt. The dual limit locking of the fall arrestor and the buckle assembly can effectively prevent workers from falling, resulting in higher safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the transmission tower anti-fall system according to an embodiment of the present invention; Figure 2 This is a side view of the transmission tower fall protection system described in an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the main tower material, guide rail assembly, and limiting assembly described in an embodiment of the present invention; Figure 4 This is a schematic diagram of the fastening assembly described in an embodiment of the present invention; Figure 5 This is a schematic diagram of the fastening unit described in an embodiment of the present invention; Figure 6 This is a schematic diagram of the locking unit described in an embodiment of the present invention; Figure 7 yes Figure 6 A zoomed-in view of a portion of point A in the middle; Figure 8 This is a schematic diagram of the structure of the fixing unit described in an embodiment of the present invention; Figure 9 This is a schematic diagram of the commutator structure according to an embodiment of the present invention; In the diagram, 1. Main tower material; 2. Guide rail assembly; 21. Bending unit; 211. Fastening space; 212. Slot; 3. Fastening assembly; 31. Fastening unit; 311. Support component; 3111. Mounting hole; 312. Semi-shell; 313. Connecting screw; 32. Snap-fit ​​part; 33. Roller; 34. Roller; 35. Locking groove; 36. Locking buckle; 37. Hinge; 4. Limiting assembly; 41. Support; 42. Limiting component; 5. Fall protection assembly. 6. Locking unit; 61. Pawl; 62. Elastic element; 63. Rotating abutment element; 7. Fixing unit; 71. Fixing hook; 711. Groove; 712. U-shaped element; 72. Movable hook; 721. Protrusion; 73. Swinging element; 731. Pin hole; 74. Accommodation space; 75. Bolt; 76. Washer; 77. Cotter pin; 78. Pin shaft; 8. Reversing device; 81. Fixed plate; 82. Rotating plate; 83. Reversing guide rail; 84. Mounting block. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] In the description of this invention, it should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this invention based on the specific circumstances.

[0021] In the description of this invention, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," "X-axis direction," "Y-axis direction," and "Z-axis direction," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Moreover, some of the above terms, in addition to indicating orientations or positional relationships, may also be used to indicate other meanings; for example, the term "upper" may in some cases be used to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0022] like Figure 1-3 As shown in Figures 6-7, a power transmission tower fall prevention system according to an embodiment of the present invention has a first direction X and a second direction Y that intersect perpendicularly, and includes a tower main material 1, a guide rail assembly 2, a fastening assembly 3, a limiting assembly 4 and a fall prevention assembly 5; The main material 1 of the tower extends along the first direction X; The guide rail assembly 2 is connected to the main tower material 1. The guide rail assembly 2 is provided with a fastening space 211 extending along the first direction X. The guide rail assembly 2 is provided with a plurality of slots 212 spaced apart along the first direction X. The fastening component 3 is snapped into the fastening space 211 and can slide along the first direction X. The fastening component 3 has a mounting hole 3111. The limiting component 4 is installed in the fastening space 211 to prevent the fastening component 3 from sliding down in a preset direction; The fall arrestor 5 includes a locking unit 6 and a fixing unit 7. The locking unit 6 includes a pawl 61, an elastic element 62, and a rotating abutment 63. The pawl 61 is hinged to the inner side of the fastening assembly 3 with an axis extending along the second direction Y. The two ends of the elastic element 62 are respectively connected to the free end of the pawl 61 and the fastening assembly 3. The rotating abutment 63 is hinged to the fastening assembly 3 with an axis extending along the second direction Y. The rotating abutment 63 passes through the mounting hole 3111 and can rotate to abut against the pawl 61. When the rotating abutment 63 abuts against the pawl 61 and rotates, the free end of the pawl 61 can be engaged in the slot 212. The fixing unit 7 is located on the outer side of the fastening assembly 3. The fixing unit 7 is connected to the rotating abutment 63 and is used to connect the safety belt.

[0023] It should be noted that the guide rail assembly 2 is connected to the main tower material 1 of the transmission tower, so that the fixed frequency of the guide rail assembly 2 and the main tower material 1 is basically the same, which makes it less likely to generate asynchronous vibration. The guide rail assembly 2 and the main tower material 1 are less likely to wear off and fall off, reducing safety hazards.

[0024] The worker's safety belt is connected to the fixing unit 7. Since the fixing unit 7 is connected to the rotating abutment 63, and the rotating abutment 63 is hinged to the fastening assembly 3, when the worker moves and pulls the safety belt, the force can be transmitted sequentially to the fixing unit 7, the rotating abutment 63 and the fastening assembly 3. The fastening assembly 3 can slide in the fastening space 211 of the guide rail assembly 2, or the fastening assembly 3 can be directly removed from the guide rail assembly 2 and the snap-fit ​​position can be changed. After determining the working position, the limiting assembly 4 below the fastening assembly 3 is operated to prevent the fastening assembly 3 from sliding down. At this time, the pawl 61 is restricted by the elastic member 62 and does not snap into the slot 212.

[0025] When a worker is about to fall, the safety belt is pulled downward, causing the fixing unit 7 to swing downward. The swing of the fixing unit 7 causes the rotating abutment 63 to rotate downward along its hinge axis. The rotating abutment 63 abuts against the pawl 61, and the pawl 61 rotates along its hinge axis. The elastic element 62 is stretched, and the pawl 61 is locked into the slot 212 of the guide rail assembly 2. The fall arrestor 5 provides an upward pull on the safety belt. The double limit locking of the fall arrestor 5 and the buckle assembly 3 can effectively prevent workers from falling, making it safer.

[0026] Once the operator's position is stable, pulling the safety belt causes the fixed unit 7 and the rotating abutment 63 to rotate. The pawl 61 is freed from the constraint of the thrust of the rotating abutment 63, the elastic element 62 rebounds, and the pawl 61 can disengage from the slot 212.

[0027] The guide rail assembly 2 is rolled or welded to the main material 1 of the tower.

[0028] like Figure 3As shown, in this embodiment, the guide rail assembly 2 further includes two bending units 21. The two bending units 21 are symmetrically arranged on both sides of the first direction X and connected to the main pole material 1. One bending unit 21 has a fastening space 211 on the side facing away from the other bending unit 21. The side wall of the bending unit 21 near the fastening assembly 3 has a plurality of slots 212 spaced apart along the first direction X. The fastening assembly 3 is inserted into the fastening space 211 of the two bending units 21.

[0029] It should be noted that the bending unit 21 is connected to the main material 1 of the tower. One bending unit 21 has a fastening space 211 on the side facing away from the other bending unit 21. The fastening component 3 is inserted into the fastening space 211 of the two bending units 21, which makes the connection more stable.

[0030] like Figure 1 , 4 As shown, in this embodiment, the fastening assembly 3 further includes two fastening units 31, which are hinged together by an axis extending along the first direction X. The two fastening units 31 are provided with a snap-fit ​​part 32 at opposite ends, and the two snap-fit ​​parts 32 are respectively snapped into two fastening spaces 211. Both fastening units 31 are provided with mounting holes 3111, and a set of locking units 6 are provided for each mounting hole 3111.

[0031] It should be noted that the two fastening units 31 are hinged along an axis extending in the first direction X, so that the two fastening units 31 are flipped along the hinge axis, so that the two locking parts 32 are brought closer to each other, and the two locking parts 32 can be securely locked into the two fastening spaces 211 respectively. When the two fastening units 31 are flipped in the opposite direction along the hinge axis, so that the two locking parts 32 are moved away from each other, the locking parts 32 can be disassembled from the fastening space 211, so that the fastening units 31 can be flexibly mounted and dismounted on the guide rail assembly 2.

[0032] like Figure 4 As shown, the two fastening units 31 are further hinged to a hinge 37 extending in the first direction X.

[0033] like Figure 2 , 4 As shown, in this embodiment, the snap-fit ​​part 32 is further equipped with a roller 33, and the snap-fit ​​part 32 abuts against the inner wall of the snap-fit ​​space 211 through the roller 33.

[0034] It should be noted that the engaging part 32 is equipped with a rolling wheel 33. When the engaging part 32 is engaged into the fastening space 211, the rolling wheel 33 abuts against the inner wall of the fastening space 211. When the driving fastening assembly 3 slides in the fastening space 211, the outer circumferential surface of the rolling wheel 33 rolls against the inner wall of the fastening space 211, which can reduce the wear of the contact surface and extend the service life of the parts. The roller 34 of the rolling wheel 33 is perpendicular to the plane on which the engaging part 32 is mounted.

[0035] like Figure 4 As shown, in this embodiment, the two fastening units 31 are further provided with matching locking grooves 35 and locking buckles 36 on one side of the first direction X near their hinge axis.

[0036] It should be noted that by flipping the two fastening units 31 along the hinge axis, the two snap-fit ​​parts 32 are brought closer to each other. After the two snap-fit ​​parts 32 can be snapped into the two fastening spaces 211 respectively, the latch 36 is fastened into the locking groove 35, which can lock the state of the two fastening units 31. The fastening assembly 3 can be more securely snapped into the guide rail assembly 2.

[0037] like Figure 1 , 4 As shown in Figure 5, in this embodiment, the fastening unit 31 further includes a support member 311 and two half-shells 312. The two half-shells 312 are respectively disposed at both ends of the support member 311 along the first direction X. The two half-shells 312 opposite each other in the second direction Y are hinged together by an axis extending along the first direction X. The half-shells 312 are provided with a snap-fit ​​portion 32, and the mounting hole 3111 is opened in the support member 311.

[0038] It should be noted that the half-shell 312 is provided with a snap-fit ​​part 32, so that the cooperation between the half-shell 312 and the snap-fit ​​part 32 realizes the fastening of the fastening unit 31 and the guide rail assembly 2.

[0039] Two semi-shells 312 are respectively disposed at both ends of the support member 311 along the first direction X. The two semi-shells 312 provide stable support for the support member 311. The mounting hole 3111 is opened in the support member 311, and the support member 311 can more stably support the fall arrestor 5.

[0040] like Figure 4-5 As shown, in this embodiment, the support member 311 and the two half-shells 312 are further connected by a connecting screw 313 extending along the first direction X.

[0041] like Figure 1 , 7 As shown in Figure 8, in this embodiment, the fixing unit 7 further includes a fixing hook 71, a movable hook 72, and a swing member 73. The first end of the fixing hook 71 is hinged between the two ends of the movable hook 72. The second end of the fixing hook 71 and the first end of the movable hook 72 are respectively provided with a matching groove 711 and a protrusion 721. A receiving space 74 for accommodating a seat belt is formed between the fixing hook 71 and the movable hook 72. The swing member 73 is connected to the second end of the movable hook 72 and is connected to a rotating abutment member 63.

[0042] It should be noted that the first end of the fixed hook 71 is hinged between the two ends of the movable hook 72. Rotating the fixed hook 71 relative to the movable hook 72 can control the groove 711 and the protrusion 721 to move closer or separate.

[0043] When it is necessary to connect the worker's safety belt to the fixing unit 7, rotate the fixing hook 71 to separate the groove 711 and the protrusion 721, put the safety belt into the receiving space 74, and then rotate the fixing hook 71 in the opposite direction to make the protrusion 721 gradually approach the groove 711 and embed into the groove 711.

[0044] The second end of the movable hook 72 is connected to the swing member 73, and the swing member 73 is connected to the rotating abutment member 63. Thus, the movement of the safety belt within the accommodating space 74 can drive the movable hook 72 and the swing member 73 to swing. When the worker has a tendency to fall, the safety belt will drive the movable hook 72, the swing member 73 and the rotating abutment member 63 to swing in sequence, and the pawl 61 can be locked into the slot 212.

[0045] like Figure 8 As shown, further, the first end of the fixed hook 71 is provided with a U-shaped part 712, the movable hook 72 is inserted into the U-shaped part 712, the bolt 75 passes through the fixed hook 71 and the movable hook 72, and washers 76 are provided between the bolt head and the fixed hook 71 and between the nut (not shown in the figure) and the fixed hook 71. A cotter pin 77 is provided at the end of the bolt 75 away from the bolt head.

[0046] like Figure 1 , 7 As shown in Figure -8, further, the swing member 73 is provided with a pin hole 731 extending along the second direction Y, the pin shaft 78 passes through the pin hole 731, and two rotating abutment members 63 are sleeved on the outer periphery of the pin shaft 78.

[0047] like Figure 3 , 5 As shown, in this embodiment, the limiting component 4 further includes a support 41 and a limiting member 42. The support 41 is installed on the side of the main tower material 1 near the guide rail assembly 2. The limiting member 42 is hinged to the support 41. When the limiting member 42 rotates to a preset angle, the limiting member 42 is located in the fastening space 211 and embedded in the slot 212.

[0048] It should be noted that when the limiting member 42 is rotated to a preset angle and is positioned within the fastening space 211, blocking the fastening component 3, the fastening component 3 cannot pass through the fastening space 211 at that point. The limiting member 42 is embedded in the slot 212, making its position more stable. A greater force is required to pry the limiting member 42 out of the slot 212, resulting in a stronger degree of stability in limiting the fastening component 3.

[0049] like Figure 1 , 9As shown, a commutator 8 according to an embodiment of the present invention includes a fixed disk 81, a rotating disk 82, and a commutator guide rail 83. The fixed disk 81 is used to fix the ends of multiple main tower members 1 of the above-mentioned power transmission tower fall protection system. The multiple main tower members 1 are symmetrically distributed about the central axis of the fixed disk 81. The main tower members 1 extend radially along the fixed disk 81. The rotating disk 82 rotates coaxially with the fixed disk 81. The commutator guide rail 83 is fixed to the rotating disk 82 and can rotatably connect to multiple different guide rail assemblies 2.

[0050] It should be noted that a commutator 8 is installed at the junction of the main tower material 1 in different directions of the transmission tower. When it is necessary to slide the fastening component 3 from the first guide rail component 2 to the second guide rail component 2, the commutator guide rail 83 is rotated so that the commutator guide rail 83 aligns with the first guide rail component 2. After the fastening component 3 slides to the commutator guide rail 83, the commutator guide rail 83 is rotated to align with the second guide rail component 2, and the fastening component 3 can slide to the second guide rail component 2. This enables the fastening component 3 to move along the main tower material 1 in different directions, allowing the workers to move to different positions to perform their work.

[0051] like Figure 9 As shown, further, the end of the guide rail assembly 2 near the fixed plate 81 is arc-shaped, and both ends of the switching guide rail 83 are arc-shaped to match the arc-shaped end of the guide rail assembly 2, so that the switching guide rail 83 can rotate and connect to the guide rail assembly 2 in a more suitable manner.

[0052] like Figure 9 As shown, the fixing plate 81 is further provided with multiple mounting blocks 84, which are symmetrically distributed about the central axis of the fixing plate 81. Each mounting block 84 has two inverted V-shaped mounting surfaces for mounting the main tower material 1.

[0053] The working process of this invention is as follows: the guide rail assembly 2 is connected to the main tower material 1 of the power transmission tower, so that the fixed frequency of the guide rail assembly 2 and the main tower material 1 is basically the same, which makes it less likely to generate asynchronous vibration. The guide rail assembly 2 and the main tower material 1 are less likely to wear off and fall off, thus reducing safety hazards.

[0054] The worker's safety belt is connected to the fixing unit 7. Since the fixing unit 7 is connected to the rotating abutment 63, and the rotating abutment 63 is hinged to the fastening assembly 3, when the worker moves and pulls the safety belt, the force can be transmitted sequentially to the fixing unit 7, the rotating abutment 63 and the fastening assembly 3. The fastening assembly 3 can slide in the fastening space 211 of the guide rail assembly 2, or the fastening assembly 3 can be directly removed from the guide rail assembly 2 and the snap-fit ​​position can be changed. After determining the working position, the limiting assembly 4 below the fastening assembly 3 is operated to prevent the fastening assembly 3 from sliding down. At this time, the pawl 61 is restricted by the elastic member 62 and does not snap into the slot 212.

[0055] When a worker is about to fall, the safety belt is pulled downward, causing the fixing unit 7 to swing downward. The swing of the fixing unit 7 causes the rotating abutment 63 to rotate downward along its hinge axis. The rotating abutment 63 abuts against the pawl 61, and the pawl 61 rotates along its hinge axis. The elastic element 62 is stretched, and the pawl 61 is locked into the slot 212 of the guide rail assembly 2. The fall arrestor 5 provides an upward pull on the safety belt. The double limit locking of the fall arrestor 5 and the buckle assembly 3 can effectively prevent workers from falling, making it safer.

[0056] In summary, the embodiments of the present invention provide a power transmission tower fall prevention system and commutator, which can effectively prevent workers from falling while performing power transmission tower operations, and is safer to use.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A fall protection system for power transmission towers, comprising a first direction and a second direction intersecting perpendicularly, characterized in that, include: The main material of the pole / tower extends along a first direction; A guide rail assembly is connected to the main tower material. The guide rail assembly has a fastening space extending in a first direction and a plurality of slots spaced apart in the first direction. A fastening assembly, which is snapped into the fastening space and can slide along a first direction, and the fastening assembly has a mounting hole; A limiting component is installed within the fastening space to prevent the fastening component from sliding down in a preset direction; A fall arrestor assembly includes a locking unit and a fixing unit. The locking unit includes a pawl, an elastic element, and a rotating abutment. The pawl is hinged to the inner side of the fastening assembly along an axis extending in a second direction. The two ends of the elastic element are respectively connected to the free end of the pawl and the fastening assembly. The rotating abutment is hinged to the fastening assembly along an axis extending in the second direction. The rotating abutment passes through the mounting hole and can rotate to abut against the pawl. When the rotating abutment abuts against the pawl and rotates, the free end of the pawl can engage in the slot. The fixing unit is located on the outer side of the fastening assembly and is connected to the rotating abutment. The fixing unit is used to connect a safety belt.

2. The transmission tower fall protection system according to claim 1, characterized in that, The guide rail assembly includes two bending units, which are symmetrically arranged on both sides of the first direction and connected to the main tower material. One bending unit has a fastening space on the side facing away from the other bending unit. The side wall of the bending unit near the fastening assembly has a plurality of slots spaced apart along the first direction. The fastening assembly is engaged in the fastening space of the two bending units.

3. The transmission tower fall prevention system according to claim 2, characterized in that, The fastening assembly includes two fastening units, which are hinged together by an axis extending in a first direction. One end of each of the two fastening units is provided with a snap-fit ​​part, which is snapped into the two fastening spaces respectively. Each of the two fastening units is provided with a mounting hole, and a set of locking units is provided for each mounting hole.

4. The transmission tower fall prevention system according to claim 3, characterized in that, The snap-fit ​​part is equipped with a roller, and the snap-fit ​​part abuts against the inner wall of the snap-fit ​​space through the roller.

5. The transmission tower fall prevention system according to claim 3, characterized in that, The two fastening units are respectively provided with matching locking grooves and locking buckles on one side of their hinge axis in the first direction.

6. The transmission tower fall prevention system according to claim 3, characterized in that, The fastening unit includes a support member and two half-shells. The two half-shells are respectively disposed at both ends of the support member along a first direction. The two half-shells opposite each other in the second direction are hinged together by an axis extending along the first direction. The half-shells are provided with the snap-fit ​​portion, and the mounting hole is opened in the support member.

7. The transmission tower fall protection system according to claim 6, characterized in that, The support member and the two semi-shells are connected by connecting screws extending along the first direction.

8. The transmission tower fall protection system according to claim 1, characterized in that, The fixing unit includes a fixed hook, a movable hook, and a swinging member. The first end of the fixed hook is hinged between the two ends of the movable hook. The second end of the fixed hook and the first end of the movable hook are respectively provided with a matching groove and a protrusion. A receiving space for accommodating a seat belt is formed between the fixed hook and the movable hook. The swinging member is connected to the second end of the movable hook and is connected to the rotating abutment member.

9. The transmission tower fall protection system according to claim 1, characterized in that, The limiting component includes a support and a limiting member. The support is installed on the side of the main pole material near the guide rail assembly. The limiting member is hinged to the support. When the limiting member rotates to a preset angle, the limiting member is located in the fastening space and embedded in the slot.

10. A commutator, characterized in that, The system includes a fixed disk, a rotating disk, and a reversing guide rail. The fixed disk is used to fix the ends of multiple main tower members of the power transmission tower fall protection system as described in any one of claims 1-9. The multiple main tower members are symmetrically distributed about the central axis of the fixed disk. The main tower members extend radially along the fixed disk. The rotating disk rotates coaxially with the fixed disk. The reversing guide rail is fixed to the rotating disk and can rotatably connect to multiple different guide rail assemblies.

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