Variable diameter self-lock

Abstract

The utility model discloses a variable diameter self-locking device, it includes self-locking device body, locking handle and guide portion, forms the accommodating groove on self-locking device body, the rotating end of locking handle, guide portion and self-locking device body rotatable connection, the guide end of guide portion and the execution end of locking handle are used for abutting on the same side of rope, the execution end of locking handle, the execution end of locking handle and the accommodating groove form the through path between, the through path is used for rope along its movement, rotates locking handle to adjust the width of through path. The utility model aims at providing a kind of variable diameter self-locking device, operator in operating process, without variable diameter self-locking device from flexible guide rail, it can be moved along across cross arm node, avoid falling due to lose hand in the process of moving out, suit of variable diameter self-locking device from flexible guide rail, cause safety accident.

Description

Technical Field

[0001] This utility model belongs to the technical field of fall protection devices, specifically, it relates to a variable diameter self-locking device. Background Technology

[0002] When performing high-altitude operations on steel towers, operators face significant safety challenges and the risk of falling. Therefore, fall protection devices are required throughout the climbing process. Consequently, flexible guide rails need to be installed on the towers, allowing operators to move along them using variable-diameter self-locking devices.

[0003] However, the tower is composed of crossarms and the tower body. At the crossarm, the flexible guide rail needs to be disconnected. In this situation, the operator cannot connect to the flexible guide rail using a variable-diameter self-locking device, making the operation complex and prone to causing falls.

[0004] Therefore, developing a variable-diameter self-locking device that allows operators to move along the crossarm node without removing it from the flexible guide rail during operation is an urgent technical problem to be solved. This avoids the risk of the device falling due to slippage during the process of removing it from the flexible guide rail and fitting it in place. Utility Model Content

[0005] The purpose of this utility model is to provide a variable diameter self-locking device that allows operators to move along the crossarm node without removing the variable diameter self-locking device from the flexible guide rail during operation, thus avoiding accidents caused by accidental falls during the process of removing the variable diameter self-locking device from the flexible guide rail and fitting it.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution: This utility model proposes a variable diameter self-locking device, which includes a self-locking device body, a locking handle, and a guide portion. The self-locking device body has a receiving groove. The locking handle and the rotating end of the guide portion are rotatably connected to the self-locking device body. The guiding end of the guide portion and the actuating end of the locking handle are used to abut against the same side of the rope. A through passage is formed between the actuating end of the locking handle, the actuating end of the locking handle, and the receiving groove. The through passage is used for the rope to move along it. The width of the through passage is adjusted by rotating the locking handle.

[0007] In some embodiments of this application, a locking part is also included, which is used to lock the relative position of the guide part and the self-locking device body.

[0008] In some embodiments of this application, the self-locking device body includes a variable-diameter self-locking device fixing part and a variable-diameter self-locking device moving part. The receiving groove is formed on the variable-diameter self-locking device fixing part. The variable-diameter self-locking device moving part includes a transmission component and an actuation component. The locking handle rotates to drive the transmission component to operate, and the transmission component drives the actuation component to move closer to or away from the rope. When the locking handle is rotated in the forward direction, the actuation component is relatively close to the actuation end of the locking handle to clamp onto both sides of the rope. When the locking handle is rotated in the reverse direction, the actuation component is relatively far away from the actuation end of the locking handle to release the rope.

[0009] In some embodiments of this application, the transmission assembly includes a first gear, a second gear, a third gear, a fourth gear, and a fifth gear; Both the locking handle and the first gear are rotatably connected to the variable diameter self-locking device fixing part via a first rotating shaft; The second gear, the third gear, the fourth gear, and the fifth gear are rotatably connected to the variable diameter self-locking device fixing part via the second rotating shaft, the third rotating shaft, the fourth rotating shaft, and the fifth rotating shaft, respectively. The first gear meshes with the second gear, the second gear meshes with the third gear, and the third gear meshes with the fourth gear and the fifth gear; the fourth gear and the fifth gear are used to drive the actuation component.

[0010] In some embodiments of this application, the guide portion is defined as a first guide portion; the locking portion is defined as a first locking portion; The rotating end of the first guide portion is rotatably connected to the fixed portion of the variable diameter self-locking device, and the guide end of the first guide portion forms a first guide wheel; The first guide portion has a first elongated hole in the middle, and the first elongated hole is fitted onto the outside of the first rotating shaft, and the first rotating shaft can move relative to the first elongated hole; The first guide portion is provided with a first slot; Rotate the first locking part in the forward direction to engage it in the first slot, thereby pushing the first guide wheel against the rope; The first locking part is rotated in the opposite direction to move out of the first slot to unlock the first locking part. The first guide part is rotated, and the first elongated hole moves relative to the first rotating axis. The first guide part moves away from the receiving groove, and the rope can be moved out of the through passage.

[0011] In some embodiments of this application, the variable diameter self-locking device fixing part includes a first support plate, a second support plate and a third support plate, wherein the second support plate and the third support plate are connected to the same side of the first support plate; The receiving groove is formed by the first support plate, the second support plate and the third support plate; An opening is formed between the second support plate and the third support plate, and the opening communicates with the receiving groove; a rope can be moved out of the receiving groove through the opening; a rope can be moved into the receiving groove through the opening; The locking handle is rotatably connected between the first support plate and the second support plate; The execution component is rotatably connected between the first support plate and the third support plate; The first support plate has a mounting cavity, and the transmission component is rotatably mounted in the mounting cavity.

[0012] In some embodiments of this application, the execution component includes two execution parts, which are spaced apart and connected between the first support plate and the third support plate; The two actuators are respectively connected to the fourth gear and the fifth gear via the fourth rotating shaft and the fifth rotating shaft.

[0013] In some embodiments of this application, the fourth rotating shaft and the fifth rotating shaft are respectively eccentrically connected to the two actuators; And / or, the contact end of the actuator is formed with a plurality of protrusions for contacting the rope.

[0014] In some embodiments of this application, the first locking part includes a rotating component, a rotating shaft, and a locking component. The rotating shaft passes through the second support plate. The rotating component is connected to the end of the rotating shaft away from the first support plate. The locking component is connected to the end of the rotating shaft near the first support plate. The rotating component can drive the locking component to move into or out of the first slot through the rotating shaft.

[0015] In some embodiments of this application, the guide portion is defined as a second guide portion; the locking portion is defined as a second locking portion; The rotating end of the second guide portion is rotatably connected to the fixing part of the variable diameter self-locking device, and the guide end of the second guide portion is rotatably connected to a second guide wheel; A stop post is provided on the fixing part of the variable diameter self-locking device; A second slot is provided on the first side of the second guide portion; A locking groove is provided on the second side of the second guide portion. The locking groove includes a first locking groove and a second locking groove that are interconnected. The opening of the first locking groove is larger than the opening of the second locking groove. The second locking part includes a push-pull component and a fixing component. The push-pull component has a first columnar structure and a second columnar structure formed on it. The cross-sectional area of ​​the first columnar structure is smaller than the cross-sectional area of ​​the second columnar structure. A cylindrical groove is formed within the fixed component, and the first cylindrical structure can move relative to the cylindrical groove; With the first columnar structure removed from the columnar groove, the first locking groove moves relative to the first columnar structure until it is fitted outside of it, until the second locking groove is fitted outside the first columnar structure; With the first cylindrical structure housed within the cylindrical groove, the second cylindrical structure is housed within the first locking groove, and the stop post is housed within the second slot.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are: By forming a receiving cavity on the self-locking device body, a locking handle is rotatably connected to the self-locking device body, and a through passage is formed between the locking handle and the receiving cavity. By rotating the locking handle to adjust the width of the through passage formed between the actuating end of the locking handle and the self-locking device body, the variable diameter self-locking device can pass through ropes of different widths, or move through devices connected between ropes such as deflectors, without having to remove the variable diameter self-locking device. This allows operators to move along the crossarm node without removing the variable diameter self-locking device from the flexible guide rail during work along the tower body, avoiding falls due to slippage during the process of removing or mounting the variable diameter self-locking device from the flexible guide rail, thus preventing safety accidents.

[0017] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the tower structure for the application of a variable diameter self-locking device proposed in this utility model. Figure 2 yes Figure 1 A partial schematic diagram of point A in the middle; Figure 3 This is one of the schematic diagrams illustrating the use of an embodiment of the variable diameter self-locking device proposed in this utility model; Figure 4 yes Figure 3 A partial schematic diagram at point B in the middle; Figure 5 yes Figure 3 A partial schematic diagram at point C in the middle; Figure 6 A second schematic diagram illustrating the use of an embodiment of the variable-diameter self-locking device proposed in this utility model; Figure 7 This is a schematic diagram of the structure of one embodiment of the bend-crossing section proposed in this utility model; Figure 8 This is one of the structural schematic diagrams of an embodiment of the steering gear proposed in this utility model; Figure 9 This is a second schematic diagram of the structure of one embodiment of the steering gear proposed in this utility model; Figure 10 This is a schematic diagram of one embodiment of a variable-diameter self-locking device proposed in this utility model; Figure 11 yes Figure 10 Sectional view of DD; Figure 12 This is a second schematic diagram of the structure of one embodiment of the variable diameter self-locking device proposed in this utility model; Figure 13 This is the third schematic diagram of an embodiment of the variable diameter self-locking device proposed in this utility model; Figure 14 This is one of the structural schematic diagrams of another embodiment of the variable diameter self-locking device proposed in this utility model; Figure 15 This is a second schematic diagram of another embodiment of the variable diameter self-locking device proposed in this utility model; In the picture, 100. Co-inverter; 1111, Connecting plate; 1112. Connecting hole; 1113. Nut; 1114. Clamping components; 11141, Groove; 1115. Fasteners; 112. Second clamping assembly; 120. Second connecting component; 130. Cornering section; 131. Boss; 132. Cylindrical structure; 210. Fixing part; 211. Vertical guide column; 212. Lateral guide column; 213. First arc-shaped connecting component; 214. Anti-detachment stop components; 215. Arc-shaped guide groove; 220. Rotating part; 221. Over-guided column; 222. Second arc-shaped connecting component; 223. Guide post; 300. Variable diameter self-locking device; 310. Self-locking device body; 311. Receiving tank; 3121. First support plate; 3122. Second support plate; 3123. Third support plate; 3124. Opening; 31311, First Gear; 31312, Second Gear; 31313, the third gear; 31314, the fourth gear; 31315, The Fifth Gear; 31316, First rotating shaft; 31317. Second rotating shaft; 31318, Third rotating shaft; 31319, Fourth Rotational Axis; 313191, Fifth Rotational Axis; 3132. Actuating components; 31321, Protrusion; 314. Arc-shaped groove; 320. Locking handle; 321. Contouring limiting groove; 331. First guide section; 3311, First guide wheel; 3312, First elongated hole; 3313, First card slot; 332. Second guide section; 3321. Second guide wheel; 3322, Stop post; 3323, Second card slot; 3324. Locking groove; 33241. First locking groove; 33242, Second locking groove; 340. Through-passage; 351. First locking part; 3511. Rotating parts; 3512. Rotating shaft; 3513. Locking components; 352. Second locking part; 3521. Push-pull components; 35211, First columnar structure; 35212, Second columnar structure; 3522. Fixed components; 400. Tower body; 510. Rope; 520. Horizontal support. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0026] In some embodiments of this application, a fall protection device is disclosed, such as... Figure 1 , Figure 2 , Figure 3 As shown, when operators use this fall arrest device to climb the tower, they can always be protected by using a variable-diameter self-locking device connected to the flexible guide rail. The fall arrest device includes a directional device 100, a deflector, and a variable-diameter self-locking device 300.

[0027] There are multiple units of both the co-directional unit 100 and the steering unit.

[0028] Multiple aligners 100 and multiple deflectors are installed on the tower body 400 according to its structure. Specifically, the flexible guide rail can be made of ropes 510. The two ends of the multiple ropes 510 are connected to the aligners 100 and the deflectors, respectively. The variable diameter self-locking device 300 moves along the ropes 510 to the aligner 100, then moves to the adjacent rope 510 via the aligner 100, then moves to the deflector, and finally moves to the adjacent rope 510 via the deflector. This allows the operator to move along the tower body 400, including when passing through positions such as the crossarm 520, without having to remove the variable diameter self-locking device 300 from the ropes 510, reducing the operator's operational risk and minimizing the risk of falls from height.

[0029] like Figure 3 , Figure 4 , Figure 6 As shown, the coordinator 100 includes a first connecting component, a second connecting component 120, and a bend-crossing section 130.

[0030] The first connecting assembly is used to connect the bend section 130 to the tower body 400. The second connecting assembly 120 is used to connect both ends of the bend section 130 to two flexible guide rails respectively; like Figure 8 , Figure 9 As shown, the steering gear includes a fixed part 210 and a rotating part 220. The fixed part 210 is connected to the tower body 400, and the rotating part 220 can rotate relative to the fixed part 210. Two vertical guide posts 211 and two horizontal guide posts 212 are connected to the fixed part 210, and a transition guide post 221 is formed on the rotating part 220. When the transition guide post 221 is rotated to extend in the same direction as the two transverse guide posts 212, the variable diameter self-locking device 300 can move along the transition guide post 221 to the transverse guide post 212. When the transition guide post 221 is rotated to extend in the same direction as the two vertical guide posts 211, the variable diameter self-locking device 300 moves along the transition guide post 221 onto the vertical guide post 211. The variable diameter self-locking device 300 moves from one side of the flexible guide rail of the bend section 130 to the other side of the flexible guide rail.

[0031] In some embodiments of this application, in order to connect two vertical guide posts 211 and two horizontal guide posts 212 to the fixing part 210, a first arc-shaped connecting component 213 is provided, and the two vertical guide posts 211 and two horizontal guide posts 212 are connected to the fixing part 210 through the first arc-shaped connecting component 213.

[0032] A second arc-shaped connecting component 222 is connected to the rotating part 220, and the transition guide post 221 is connected to the rotating part 220 through the second arc-shaped connecting component 222.

[0033] The two vertical guide posts 211 are located on the same straight line.

[0034] The two transverse guide posts 212 are located on the same straight line.

[0035] With the variable diameter self-locking device 300 mounted on the vertical guide post 211, rotating the rotating part 220 until the transition guide post 221 and the vertical guide post 211 are in the same straight line, the variable diameter self-locking device 300 can move from the vertical guide post 211 to the transition guide post 221, and then move to another vertical guide post 211 via the transition guide post 221.

[0036] Similarly, with the variable diameter self-locking device 300 mounted on the vertical guide post 211, rotating the rotating part 220 until the transition guide post 221 and the vertical guide post 211 are aligned, the variable diameter self-locking device 300 can move from the vertical guide post 211 to the transition guide post 221. Rotating the transition guide post 221 until it is aligned with the horizontal guide post 212, the variable diameter self-locking device 300 can move from the transition guide post 221 to the horizontal guide post 212. This achieves the movement of the variable diameter self-locking device 300 from the vertical guide post 211 to the horizontal guide post 212.

[0037] Similarly, when the variable diameter self-locking device 300 is mounted on the transverse guide post 212, rotating the rotating part 220 until the transition guide post 221 and the transverse guide post 212 are in the same straight line, the variable diameter self-locking device 300 can move from the transverse guide post 212 to the transition guide post 221, and then move to another transverse guide post 212 via the transition guide post 221.

[0038] Similarly, with the variable diameter self-locking device 300 mounted on the transverse guide post 212, rotating the rotating part 220 until the transition guide post 221 and the transverse guide post 212 are aligned, the variable diameter self-locking device 300 can move from the transverse guide post 212 to the transition guide post 221. Rotating the transition guide post 221 until it is aligned with the transverse guide post 212, the variable diameter self-locking device 300 can move from the transition guide post 221 to the transverse guide post 212. This achieves the movement of the variable diameter self-locking device 300 from the vertical guide post 211 to the transverse guide post 212.

[0039] In some embodiments of this application, during the movement of the variable diameter self-locking device 300 between the vertical guide post 211 and the horizontal guide post 212, the transition guide post 221 needs to rotate. In order to prevent the variable diameter self-locking device 300 from coming off the transition guide post 221, an anti-disengagement stop component 214 is provided on the fixing part 210.

[0040] Specifically, at the position where the crossarm 520 is connected on the tower body 400, a aligner 100 is installed. The aligner 100 can cross the crossarm 520, and the variable diameter self-locking device 300 moves from the rope 510 on one side of the aligner 100 to the rope 510 on the other side of the aligner 100 via the aligner 100.

[0041] To enable the fixed part 210 to rotate relative to the rotating part 220, an arc-shaped guide groove 215 is provided on the fixed part 210, and a guide post 223 is provided on the rotating part 220. The guide post 223 is inserted into the arc-shaped guide groove 215 and can move along the arc-shaped guide groove 215. The arc-shaped guide groove 215 can limit the rotation angle of the rotating part 220 relative to the fixed part 210.

[0042] like Figures 2 to 7 As shown, in order to connect the bend section 130 to the tower body 400 or the crossarm 520, there are two first connecting components. The two first connecting components are used to connect the two ends of the bend section 130 to the tower body 400.

[0043] Specifically, the first connecting assembly includes a first clamping assembly and a second clamping assembly 112. The second clamping assembly 112 is fitted onto the tower body 400 or the crossarm 520.

[0044] One end of the first clamping assembly clamps the second clamping assembly 112 onto the tower body 400, and the second end of the first clamping assembly clamps onto the bend 130.

[0045] Specifically, the second clamping assembly 112 can use V-bolts. Angle steel is often used for the tower body 400 or crossarm 520. V-bolts matching the angle steel model are selected and fitted onto the outside of the angle steel.

[0046] The first end of the first clamping assembly has a connecting plate 1111, and the connecting plate 1111 has two connecting holes 1112. The two ends of the V-bolt pass through the two connecting holes 1112 respectively and are connected to the two nuts 1113 respectively. This achieves the clamping of the second clamping assembly 112 onto the angle steel.

[0047] The second end of the first clamping assembly has two clamping parts 1114. The two clamping parts 1114 are clamped relative to each other on the bend 130, and then the two bends 130 are locked outside the bend 130 by fasteners 1115.

[0048] Specifically, to ensure that the two clamping components 1114 are more securely clamped to the outside of the bend 130, a boss 131 is provided on one side of the bend 130, and a corresponding groove 11141 is formed on the clamping component 1114. The boss 131 is embedded into the groove 11141, and the fastener 1115 locks the two clamping components 1114 onto the bend 130. This enables the bend 130 to be connected to the tower body 400 or the crossarm 520.

[0049] In some embodiments of this application, the second connecting component 120 is used to connect the bend 130 to the rope 510.

[0050] Specifically, the second connecting component 120 can be a two-way nut. One end of the two-way nut is threaded to the bend 130, and the other end of the two-way nut is threaded to the rope 510.

[0051] Since the bend 130 needs to cross the bends connected to the crossarm 520 or other bends formed on the tower body 400, the bend 130 needs to be formed in various specifications to match different degrees of bend.

[0052] As described above, a boss 131 is provided on one side of the bend portion 130 for connection with two clamping components 1114, and a cylindrical structure 132 extends from the other side of the bend portion 130. The difference between the diameter of the cylindrical structure 132 and the diameter of the rope 510 must be within a certain range to ensure that the variable diameter self-locking device 300 can move to the outside of the bend portion 130 connected to it via the rope 510, and then move to the outside of the adjacent rope 510.

[0053] At the same time, such as Figures 10 to 15 As shown, the variable diameter self-locking device 300 needs to be able to move along the bend 130 and rope 510 with varying diameters.

[0054] Therefore, the variable diameter self-locking device 300 includes a self-locking device body 310, a locking handle 320, and a guide portion. A receiving groove 311 is formed on the self-locking device body 310. The rotating ends of the locking handle 320 and the guide portion are rotatably connected to the self-locking device body 310. The guiding end of the guide portion and the actuating end of the locking handle 320 are used to abut against the same side of the rope 510. A through passage 340 is formed between the actuating end of the locking handle 320, the actuating end of the locking handle 320, and the receiving groove 311. The through passage 340 is used for the rope 510 to move along it. The width of the through passage 340 is adjusted by rotating the locking handle 320.

[0055] By rotating the locking handle 320 in the forward direction, the width of the through passage 340 is increased to install the rope 510 into the through passage 340; then, by rotating the locking handle 320 in the reverse direction, the width of the through passage 340 is decreased to confine the rope 510 within the through passage 340 formed between the locking handle 320 and the receiving groove 311. With the rope 510 confined within the through passage 340, the rope 510 can move along the through passage 340, but cannot move out of the through passage 340, thus ensuring that the variable diameter self-locking device 300 is stably fitted around the rope 510.

[0056] In some embodiments of this application, a locking part is also included, which is used to lock the relative position of the guide part and the self-locking body 310.

[0057] In some embodiments of this application, such as Figures 10 to 13 As shown, the self-locking device body 310 includes a variable diameter self-locking device fixing part and a variable diameter self-locking device moving part.

[0058] The receiving groove 311 is formed on the fixing part of the variable diameter self-locking device.

[0059] The variable diameter self-locking device moving part is disposed in the receiving groove 311. By moving the variable diameter self-locking device moving part relative to the variable diameter self-locking device fixing part, the variable diameter self-locking device moving part can move closer to or further away from the locking handle 320. A through passage 340 is formed between the variable diameter self-locking device moving part and the locking handle 320.

[0060] The movable part of the variable-diameter self-locking device includes a transmission assembly and an actuation assembly. Rotating the locking handle 320 drives the transmission assembly to operate, which in turn drives the actuation assembly to move closer to or further away from the rope 510. When the locking handle 320 is rotated in the forward direction, the actuation assembly moves closer to the actuation end of the locking handle 320 to clamp the rope 510 on both sides; when the locking handle 320 is rotated in the reverse direction, the actuation assembly moves further away from the actuation end of the locking handle 320 to release the rope.

[0061] The transmission assembly can be in the form of gear transmission. The transmission assembly includes a first gear 31311, a second gear 31312, a third gear 31313, a fourth gear 31314, and a fifth gear 31315.

[0062] Both the locking handle 320 and the first gear 31311 are rotatably connected to the variable-diameter self-locking device fixing part via the first rotating shaft 31316. Rotation of the locking handle 320 drives the first rotating shaft 31316 to rotate, which in turn drives the first gear 31311 to rotate. This achieves the transmission from the locking handle 320 to the first gear 31311.

[0063] The second gear 31312, the third gear 31313, the fourth gear 31314 and the fifth gear 31315 are rotatably connected to the variable diameter self-locking device fixing part via the second rotating shaft 31317, the third rotating shaft 31318, the fourth rotating shaft 31319 and the fifth rotating shaft 313191, respectively.

[0064] The first gear 31311 meshes with the second gear 31312, the second gear 31312 meshes with the third gear 31313, and the third gear 31313 meshes with the fourth gear 31314 and the fifth gear 31315. This achieves transmission from the first gear 31311 to the fourth gear 31314 and the fifth gear 31315.

[0065] The actuation assembly includes two actuation components 3132. The two actuation components 3132 are respectively connected to the fourth gear 31314 and the fifth gear 31315 via the fourth rotating shaft 31319 and the fifth rotating shaft 313191.

[0066] The fourth gear 31314 and the fifth gear 31315 drive the two actuators 3132 to rotate via the fourth rotating shaft 31319 and the fifth rotating shaft 313191.

[0067] The fourth rotating shaft 31319 and the fifth rotating shaft 313191 are eccentrically connected to the two actuators 3132, respectively. This allows the actuators 3132 to move closer to or further away from the locking handle 320 during rotation.

[0068] Specifically, the actuator 3132 may be in the form of a cam.

[0069] The contact end of the actuator 3132 has a plurality of protrusions 31321 for contacting the rope 510.

[0070] A contoured limiting groove 321 is formed on the actuating end of the locking handle 320 at the position for contacting the rope 510, and the rope 510 is embedded in the contoured limiting groove 321.

[0071] With the rope 510 embedded in the contour limiting groove 321, the contact end of the actuator 3132 contacts the rope, thereby enabling the rope 510 to move along the through passage 340 without coming out of the through passage 340.

[0072] In some embodiments of this application, the guide portion is defined as a first guide portion 331, and the locking portion corresponding to the first guide portion 331 is defined as a first locking portion 351. The first locking portion 351 is used to lock the position of the first guide portion 331.

[0073] The rotating end of the first guide portion 331 is rotatably connected to the fixing part of the variable diameter self-locking device. A first guide wheel 3311 is formed at the guide end of the first guide portion 331. The first guide wheel 3311 is used to contact the rope 510 and move relative to it.

[0074] A first elongated hole 3312 is provided in the middle of the first guide portion 331. The first elongated hole 3312 is fitted onto the outside of the first rotating shaft 31316. During the rotation of the first guide portion 331 relative to the variable diameter self-locking device fixing portion, the first elongated hole 3312 can move along the first rotating shaft 31316. The first elongated hole 3312 is used to limit the rotational formation of the first guide portion 331.

[0075] A first slot 3313 is provided on the first guide section 331.

[0076] The first locking part 351 is rotated in the forward direction and engages into the first slot 3313, so as to push the first guide wheel 3311 against the rope 510; The first locking part 351 is rotated in the opposite direction to move out of the first slot 3313 to unlock the first locking part 351. The first guide part 331 is rotated, the first elongated hole 3312 moves relative to the first rotating shaft 31316, the first guide part 331 moves away from the receiving groove 311, and the rope 510 can be moved out of the through passage 340.

[0077] The variable diameter self-locking device fixing part includes a first support plate 3121, a second support plate 3122 and a third support plate 3123.

[0078] The second support plate 3122 and the third support plate 3123 are connected to the same side of the first support plate 3121.

[0079] The second support plate 3122, the third support plate 3123 and the first support plate 3121 form a receiving groove 311.

[0080] An opening 3124 is formed between the second support plate 3122 and the third support plate 3123. The opening 3124 communicates with the receiving groove 311. The rope 510 can enter the receiving groove 311 through the opening 3124, and the rope 510 can be removed from the receiving groove 311 through the opening 3124.

[0081] The locking handle 320 is rotatably connected between the first support plate 3121 and the second support plate 3122.

[0082] The actuator is rotatably connected between the first support plate 3121 and the third support plate 3123.

[0083] An installation cavity is formed in the first support plate 3121, and the transmission component is rotatably installed in the installation cavity.

[0084] Two actuators 3132 are spaced apart between the first support plate 3121 and the third support plate 3123. The two actuators 3132 are respectively connected to the fourth gear 31314 and the fifth gear 31315 via the fourth rotating shaft 31319 and the fifth rotating shaft 313191.

[0085] The first locking part 351 includes a rotating component 3511, a rotating shaft 3512, and a locking component 3513. The rotating shaft 3512 passes through the first support plate 3121. The rotating component 3511 and the locking component 3513 are respectively connected to the two ends of the rotating shaft 3512.

[0086] The rotating component 3511 is connected to the end of the rotating shaft 3512 away from the first support plate 3121. The locking component 3513 is connected to the end of the rotating shaft 3512 near the first support plate 3121.

[0087] The rotating component 3511 can drive the locking component 3513 to move into or out of the first slot 3313 via the rotating shaft 3512.

[0088] In other embodiments of this application, such as Figure 14 , Figure 15 As shown, the guide portion is defined as the second guide portion 332. The locking portion is defined as the second locking portion 352.

[0089] The rotating end of the second guide section 332 is rotatably connected to the self-locking device body 310.

[0090] The second guide wheel 3321 is connected to the guide end of the second guide section 332.

[0091] A stop post 3322 is provided on the self-locking device body 310.

[0092] A second slot 3323 is provided on the first side of the second guide portion 332.

[0093] A locking groove 3324 is provided on the second side of the second guide portion 332.

[0094] The locking groove 3324 includes a first locking groove 33241 and a second locking groove 33242 that are interconnected.

[0095] The opening of the first locking groove 33241 is larger than the opening of the second locking groove 33242.

[0096] The locking groove 3324 is used to engage with the second locking part 352.

[0097] The second locking part 352 includes a push-pull member 3521 and a fixing member 3522. A first columnar structure 35211 and a second columnar structure 35212 are formed on the push-pull member 3521. The cross-sectional area of ​​the first columnar structure 35211 is smaller than the cross-sectional area of ​​the second columnar structure 35212.

[0098] A cylindrical groove is formed inside the fixed component 3522, and the first cylindrical structure 35211 can move relative to the cylindrical groove; With the first columnar structure 35211 removed from the columnar groove, the first locking groove 33241 moves relative to the first columnar structure 35211 until it is fitted outside of it, until the second locking groove 33242 is fitted outside the first columnar structure 35211. With the first columnar structure 35211 accommodated in the columnar groove, the second columnar structure 35212 is accommodated in the first locking groove 33241, and the stop post 3322 is accommodated in the second slot 3323.

[0099] In some embodiments of this application, the self-locking device body 310 has an arc-shaped groove 314. When the rope 510 is accommodated in the arc-shaped groove 314, the actuating end of the locking handle 320 abuts against the rope 510. A through passage 340 is formed between the actuating end of the locking handle 320 and the arc-shaped groove 314.

[0100] The rope 510 can move between the locking handle 320 and the arc-shaped groove 314. Furthermore, the edge of the arc-shaped groove 314 can prevent the rope 510 from coming out of the through passage 340.

[0101] By rotating the locking handle 320, the size of the through passage 340 formed between the locking handle 320 and the arc groove 314 can be adjusted to accommodate the movement of the variable diameter self-locking device 300 along the rope 510, the coordinator 100, and the steering device.

[0102] During construction, at the crossarm 520 on the tower body 400, the flexible guide rails on both sides of the crossarm 520 need to be connected by a coordinator 100. Specifically, the second connecting component 120 connects the two ends of the bend 130 to the two flexible guide rails respectively, and the first connecting component connects the bend 130 to the tower body 400. The fixing part 210 of the steering mechanism is connected to the tower body 400. Specifically, the steering mechanism needs to be installed on the tower body 400 in the area where the operator needs to turn. Thus, the operator can move along the rope 510, the coordinator 100, and the steering mechanism using the variable diameter self-locking device 300 without disassembling the variable diameter self-locking device 300, ensuring the safety of the operator during high-altitude operations.

[0103] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0104] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0105] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A variable-diameter self-locking device, characterized in that, It includes a self-locking device body, a locking handle, and a guide portion. The self-locking device body has a receiving groove. The locking handle and the rotating end of the guide portion are rotatably connected to the receiving groove of the self-locking device body. The guiding end of the guide portion and the actuating end of the locking handle are used to abut against the same side of the rope. A through passage is formed between the actuating end of the locking handle, the guiding end of the guide portion, and the self-locking device body. The through passage is used for the rope to move along it. The width of the through passage is adjusted by rotating the locking handle.

2. The variable diameter self-locking device according to claim 1, characterized in that, It also includes a locking part, which is used to lock the relative position of the guide part and the self-locking body.

3. The variable diameter self-locking device according to claim 2, characterized in that, The self-locking device body includes a variable-diameter self-locking device fixing part and a variable-diameter self-locking device moving part. The receiving groove is formed on the variable-diameter self-locking device fixing part. The variable-diameter self-locking device moving part includes a transmission component and an actuation component. The rotation of the locking handle drives the transmission component to operate, and the transmission component drives the actuation component to move closer to or away from the rope. When the locking handle is rotated in the forward direction, the actuation component is relatively close to the actuation end of the locking handle to clamp the two sides of the rope. When the locking handle is rotated in the reverse direction, the actuation component is relatively far away from the actuation end of the locking handle to release the rope.

4. The variable diameter self-locking device according to claim 3, characterized in that, The transmission assembly includes a first gear, a second gear, a third gear, a fourth gear, and a fifth gear; Both the locking handle and the first gear are rotatably connected to the variable diameter self-locking device fixing part via a first rotating shaft; The second gear, the third gear, the fourth gear, and the fifth gear are rotatably connected to the variable diameter self-locking device fixing part via the second rotating shaft, the third rotating shaft, the fourth rotating shaft, and the fifth rotating shaft, respectively. The first gear meshes with the second gear, the second gear meshes with the third gear, and the third gear meshes with the fourth gear and the fifth gear; the fourth gear and the fifth gear are used to drive the actuation component.

5. The variable diameter self-locking device according to claim 4, characterized in that... The guide portion is defined as a first guide portion; the locking portion is defined as a first locking portion; The rotating end of the first guide portion is rotatably connected to the fixed portion of the variable diameter self-locking device, and the guide end of the first guide portion forms a first guide wheel; The first guide portion has a first elongated hole in the middle, and the first elongated hole is fitted onto the outside of the first rotating shaft, and the first rotating shaft can move relative to the first elongated hole; The first guide portion is provided with a first slot; Rotate the first locking part in the forward direction to engage it in the first slot, thereby pushing the first guide wheel against the rope; The first locking part is rotated in the opposite direction to move out of the first slot to unlock the first locking part. The first guide part is rotated, and the first elongated hole moves relative to the first rotating axis. The first guide part moves away from the receiving groove, and the rope can be moved out of the through passage.

6. The variable diameter self-locking device according to claim 5, characterized in that, The variable diameter self-locking device fixing part includes a first support plate, a second support plate and a third support plate, wherein the second support plate and the third support plate are connected to the same side of the first support plate; The receiving groove is formed by the first support plate, the second support plate and the third support plate; An opening is formed between the second support plate and the third support plate, and the opening communicates with the receiving groove; a rope can be moved out of the receiving groove through the opening; a rope can be moved into the receiving groove through the opening; The locking handle is rotatably connected between the first support plate and the second support plate; The execution component is rotatably connected between the first support plate and the third support plate; The first support plate has a mounting cavity, and the transmission component is rotatably mounted in the mounting cavity.

7. The variable diameter self-locking device according to claim 6, characterized in that, The execution component includes two execution parts, which are connected at an interval between the first support plate and the third support plate. The two actuators are respectively connected to the fourth gear and the fifth gear via the fourth rotating shaft and the fifth rotating shaft.

8. The variable diameter self-locking device according to claim 7, characterized in that, The fourth rotating shaft and the fifth rotating shaft are respectively eccentrically connected to the two actuators; And / or, the contact end of the actuator is formed with a plurality of protrusions for contacting the rope.

9. The variable diameter self-locking device according to claim 6, characterized in that, The first locking part includes a rotating component, a rotating shaft, and a locking component. The rotating shaft passes through the second support plate. The rotating component is connected to the end of the rotating shaft away from the first support plate. The locking component is connected to the end of the rotating shaft near the first support plate. The rotating component can drive the locking component to move into or out of the first slot through the rotating shaft.

10. The variable-diameter self-locking device according to claim 7, characterized in that, The guide portion is defined as a second guide portion; the locking portion is defined as a second locking portion; The rotating end of the second guide portion is rotatably connected to the fixing part of the variable diameter self-locking device, and the guide end of the second guide portion is rotatably connected to a second guide wheel; A stop post is provided on the fixing part of the variable diameter self-locking device; A second slot is provided on the first side of the second guide portion; A locking groove is provided on the second side of the second guide portion. The locking groove includes a first locking groove and a second locking groove that are interconnected. The opening of the first locking groove is larger than the opening of the second locking groove. The second locking part includes a push-pull component and a fixing component. The push-pull component has a first columnar structure and a second columnar structure formed on it. The cross-sectional area of ​​the first columnar structure is smaller than the cross-sectional area of ​​the second columnar structure. A cylindrical groove is formed within the fixed component, and the first cylindrical structure can move relative to the cylindrical groove; With the first columnar structure removed from the columnar groove, the first locking groove moves relative to the first columnar structure until it is fitted outside of it, until the second locking groove is fitted outside the first columnar structure; With the first cylindrical structure housed within the cylindrical groove, the second cylindrical structure is housed within the first locking groove, and the stop post is housed within the second slot.

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