Safe self-locking device for steel wire rope
By designing structural elements such as the limit seat, linkage mechanism, and guide wheel, the problem of long starting stroke in existing wire rope self-locking devices has been solved, realizing a highly efficient self-locking device that can quickly lock and unlock, thus improving ease of use and safety.
Patent Information
- Application Number
- CN202520042890.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-08
AI Technical Summary
When the existing wire rope self-locking device is activated, the movable clamp moves in one direction, resulting in a long stroke of the movable clamp within the placement space, which affects the locking efficiency.
The structure is designed with limit seats, linkage mechanisms and guide wheels. Through the cooperation of guide columns and linkage mechanisms, the movable clamp can move in both directions, shortening the starting stroke. The combination of guide wheels and patterned sleeves ensures the rapid locking and unlocking of the wire rope.
It achieves rapid response and efficient locking of the wire rope self-locking device, with a short starting stroke, rapid locking response, and the ability to restore the original state without disassembly when unlocking, thus improving the convenience and safety of use.
Smart Images
Figure CN223861183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wire rope self-locking devices, specifically a safety self-locking device for wire ropes. Background Technology
[0002] The wire rope self-locking device is a personal fall protection device used by workers climbing up and down at heights. The wire rope self-locking device always follows the person up and down freely below, and automatically and quickly locks in place once the person falls.
[0003] A wire rope self-locking device typically consists of a main structure, usually made of durable metal materials to ensure its stability and durability in harsh environments. Inside, it contains a triggering device and a locking device, with the locking device being the key component of the self-locking device. When activated, it quickly locks the rope to prevent further descent.
[0004] The locking device of the existing wire rope self-locking device mainly includes two sets of clamping plate assemblies. One set of clamping plate assemblies is a fixed-mounted clamping plate, and the other set of clamping plate assemblies is a movable clamping plate. When activated, the movable clamping plate approaches the fixed-mounted clamping plate to lock. Since the wire rope needs to pass between the two sets of clamping plate assemblies, sufficient space needs to be left between the two sets of clamping plate assemblies. When the diameter of the wire rope is large, the space left also increases. When the wire rope self-locking device is activated, the movable clamping plate moves in one direction, resulting in a long stroke of the movable clamping plate in the space. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a safety self-locking device for wire ropes, which solves the problem that when existing wire rope self-locking devices are activated, the movable clamp moves in one direction, resulting in a long stroke of the movable clamp within the placement space.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a safety self-locking device for wire rope, including a locking housing, the locking housing including a bottom locking plate and a top locking plate, the top locking plate being movably connected to the top of the bottom locking plate, the top having a rope threading opening, the bottom locking plate having a limit seat and a linkage mechanism movably installed inside, and the linkage mechanism being located on one side of the limit seat;
[0007] The bottom buckle plate has a first side plate and a second side plate that are movable inside. The first side plate is movably mounted on one side of the second side plate. A corrugated clamp plate is fixedly mounted on the bottom side of the first side plate. Guide plates are fixedly mounted on both ends of the first side plate. Guide posts are fixedly mounted on the top of the guide plate and on the bottom of the second side plate. A protrusion is fixedly mounted on the side of the second side plate corresponding to the first side plate. The surface of the protrusion is provided with a toothed groove. Guide wheels are rotatably mounted on the four corners inside the bottom buckle plate. Bearings are fixedly mounted inside the guide wheels. A patterned sleeve is fixedly fitted in the middle of the guide wheels. A wheel axle is fixedly passed through the bearing. A locking block is fixedly mounted on the top and bottom of both ends of the wheel axle. A top rod is fixedly mounted on the outer periphery of both ends of the wheel axle. A telescopic cylinder is fitted on one end of the top rod. A compression spring is movably mounted inside the telescopic cylinder. The compression spring is fixedly connected to one end of the top rod.
[0008] The limiting seat has a limiting opening in the middle, and mounting screw holes are provided at both ends of the limiting seat. A support frame is fixedly provided on one side of the limiting seat, and a support shaft is fixedly provided in the middle of the support frame.
[0009] The linkage mechanism includes a rotating shaft, an upper connecting plate, a lower connecting plate, an upper horizontal plate, an upper fixing block, a lower horizontal plate, and a lower fixing block. The upper connecting plate and the lower connecting plate are respectively fixed to the top and bottom of the rotating shaft. The upper connecting plate and the lower connecting plate are both provided with sliding grooves. The upper horizontal plate is rotatably connected to one end of the upper connecting plate, the upper fixing block is rotatably connected to one end of the upper horizontal plate, the lower horizontal plate is rotatably connected to one end of the lower connecting plate, and the lower fixing block is rotatably connected to one end of the lower horizontal plate.
[0010] Preferably, the bottom plate and the top plate are respectively provided with a first guide opening and a second guide opening at the position of the guide post, and the guide post is slidably disposed inside the corresponding first guide opening and second guide opening.
[0011] Preferably, the bottom and top buckles are provided with wheel axle grooves at the positions corresponding to the guide wheels, and the top and bottom of the wheel axle grooves are provided with slots, and the locking blocks are slidably disposed inside the corresponding slots.
[0012] Preferably, an opening is provided on one side of both the bottom and top panels, and a connecting plate is fixedly connected to one side of the first side panel, with the connecting plate movably passing through the interior of the opening.
[0013] Preferably, the edges of both the bottom and top buckles are provided with fixing holes, and several sets of fixing holes are provided. The bottom and top buckles are detachably connected by screws and fixing holes.
[0014] Preferably, the connecting plate extends through the inside of the limiting port, and the limiting seat is detachably connected to the inside of the bottom buckle plate by screws and mounting screw holes.
[0015] Preferably, the second side plate is slidably disposed inside the support frame, and the support shaft moves through the inside of the rotating shaft.
[0016] Preferably, the upper fixing block is fixedly connected to the corrugated clamp, and the lower fixing block is fixedly connected to the second side plate.
[0017] Beneficial effects
[0018] This utility model provides a safety self-locking device for wire ropes. Compared with the prior art, it has the following advantages:
[0019] Beneficial effects:
[0020] 1. This wire rope uses a safety self-locking device. The connecting plate is pulled by the safety rope and hook. At this time, the first side plate moves the corrugated clamp plate towards the second side plate. Through the linkage mechanism, the second side plate simultaneously moves towards the corrugated clamp plate. The guide post slides along the corresponding first and second guide openings, guiding the movement of the first and second side plates. The corrugated clamp plate moves the upper cross plate to the left via the upper fixed block. Under the rotational connection of the sliding groove, the upper connecting piece drives the rotating shaft to rotate actively. Under the support of the support shaft, the lower connecting piece moves to the right. Under the connection of the lower cross plate, the lower fixed block moves the second side plate towards the corrugated clamp plate until the teeth on the surface of the protrusion and the corrugations on the side of the corrugated clamp plate bite together, locking the wire rope. To release the lock, push the connecting plate into the locking housing. The positioning mechanism composed of the second side plate and the corrugated clamp plate can move simultaneously. The starting stroke is short, the response is fast, and the pre-locking state can be restored without subsequent disassembly.
[0021] 2. The steel wire rope uses a safety self-locking device. The limit seat is installed inside the bottom buckle plate through the mounting screw hole. The connecting plate passes through the inside of the limit opening, which can limit the connecting plate and at the same time serve to fix the support frame.
[0022] 3. The wire rope uses a safety self-locking device. By passing the wire rope through the rope-passing port between four sets of guide wheels, and then vertically passing the wire rope between the second side plate and the corrugated clamp, and passing the wire rope between two sets of patterned sleeves, the wheel axle can drive the top rod to squeeze the corresponding clamping spring, which can clamp and position the wire rope. The telescopic cylinder limits the extension and retraction of the top rod. The bearing facilitates the rotation of the guide wheels and patterned sleeves. When there is no external force, the locking housing is positioned at a certain point on the wire rope. When the locking housing is subjected to external force, it can move along the wire rope, allowing the wire rope to pass vertically through the locking housing. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the internal structure of the bottom buckle plate of this utility model;
[0025] Figure 3 This is a schematic diagram of the bottom buckle plate structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the second side plate structure of this utility model;
[0027] Figure 5 This is a schematic diagram of the guide wheel structure of this utility model;
[0028] Figure 6 This is a schematic diagram of the side structure of the first side plate of this utility model;
[0029] Figure 7 This is a top view of the limiting seat structure of this utility model;
[0030] Figure 8 This is a schematic diagram of the linkage mechanism of this utility model.
[0031] In the diagram: 1. Lock housing; 2. Bottom buckle plate; 21. First side plate; 211. Corrugated clamping plate; 212. Guide plate; 213. Guide post; 22. Second side plate; 221. Protrusion; 23. Guide wheel; 231. Bearing; 232. Patterned sleeve; 233. Wheel axle; 234. Top rod; 235. Telescopic cylinder; 236. Compression spring; 24. Opening; 25. Fixing hole; 26. Wheel axle groove; 2 7. First guide port; 3. Top buckle plate; 31. Second guide port; 4. Connecting plate; 5. Rope threading port; 6. Steel wire rope; 7. Limit seat; 71. Limit port; 72. Mounting screw hole; 8. Support frame; 81. Support shaft; 9. Linkage mechanism; 91. Rotating shaft; 92. Upper connecting piece; 93. Lower connecting piece; 94. Upper cross piece; 95. Upper fixing block; 96. Lower cross piece; 97. Lower fixing block; 98. Slide groove. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figure 1-8This utility model provides a technical solution: a safety self-locking device for wire ropes, including a locking housing 1, the locking housing 1 including a bottom locking plate 2 and a top locking plate 3, the top locking plate 3 being movably connected to the top of the bottom locking plate 2, the top of the bottom locking plate 2 having a rope threading opening 5, the bottom locking plate 2 having a limiting seat 7 and a linkage mechanism 9 movably installed inside, and the linkage mechanism 9 being located on one side of the limiting seat 7; the bottom locking plate 2 having a first side plate 21 and a second side plate 22 movably installed inside, and the first side plate 21 being movably disposed on one side of the second side plate 22, the bottom side of the first side plate 21 being fixedly provided with The corrugated clamp plate 211 has guide plates 212 fixedly installed at both ends of the first side plate 21. Guide posts 213 are fixedly installed at the top of the guide plates 212 and at the bottom of the second side plate 22. A protrusion 221 is fixedly installed on the side of the second side plate 22 corresponding to the first side plate 21, and the surface of the protrusion 221 is provided with toothed grooves. Guide wheels 23 are rotatably installed at the four corners inside the bottom buckle plate 2. Bearings 231 are fixedly installed inside the guide wheels 23. A patterned sleeve 232 is fixedly fitted in the middle of the guide wheels 23. A wheel axle is fixedly passed through the inside of the bearing 231. 233, and both ends of the axle 233 are fixedly equipped with locking blocks at the top and bottom. Both ends of the axle 233 are fixedly equipped with push rods 234 on their outer periphery. One end of the push rod 234 is fitted with a telescopic cylinder 235. The telescopic cylinder 235 is movably equipped with a compression spring 236, and the compression spring 236 is fixedly connected to one end of the push rod 234. The limiting seat 7 has a limiting port 71 in the middle inside. Both ends of the limiting seat 7 have mounting screw holes 72. A support frame 8 is fixedly equipped on one side of the limiting seat 7. A support shaft 81 is fixedly equipped in the middle of the support frame 8. Linkage mechanism 9 It includes a rotating shaft 91, an upper connecting piece 92, a lower connecting piece 93, an upper horizontal piece 94, an upper fixing block 95, a lower horizontal piece 96, and a lower fixing block 97. The upper connecting piece 92 and the lower connecting piece 93 are respectively fixed to the top and bottom of the rotating shaft 91. The upper connecting piece 92 and the lower connecting piece 93 are both provided with sliding grooves 98. The upper horizontal piece 94 is rotatably connected to one end of the upper connecting piece 92, the upper fixing block 95 is rotatably connected to one end of the upper horizontal piece 94, the lower horizontal piece 96 is rotatably connected to one end of the lower connecting piece 93, and the lower fixing block 97 is rotatably connected to one end of the lower horizontal piece 96.
[0034] The bottom plate 2 and top plate 3 are respectively provided with a first guide opening 27 and a second guide opening 31 at the position corresponding to the guide post 213, and the guide post 213 is slidably disposed inside the corresponding first guide opening 27 and second guide opening 31. The bottom plate 2 and top plate 3 are each provided with axle grooves 26 at the position corresponding to the guide wheel 23, and the top and bottom ends of the axle grooves 26 are each provided with slots, and the locking blocks are slidably disposed inside the corresponding slots. An opening 24 is provided on one side of both the bottom plate 2 and top plate 3. One side plate 21... A connecting plate 4 is fixedly connected to the side, and the connecting plate 4 moves through the inside of the opening 24. The edges of the bottom buckle plate 2 and the top buckle plate 3 are provided with fixing holes 25, and several sets of fixing holes 25 are provided. The bottom buckle plate 2 and the top buckle plate 3 are detachably connected by screws and fixing holes 25. The second side plate 22 is slidably disposed inside the support frame 8. The support shaft 81 moves through the inside of the rotating shaft 91. The upper fixing block 95 is fixedly connected to the corrugated clamp plate 211, and the lower fixing block 97 is fixedly connected to the second side plate 22. The first side plate 21 drives the corrugated clamp 211 to move toward the second side plate 22. Through the linkage mechanism 9, the second side plate 22 moves toward the corrugated clamp 211 at the same time. The guide post 213 slides along the corresponding first guide opening 27 and second guide opening 31, which guides the movement of the first side plate 21 and the second side plate 22. The corrugated clamp 211 drives the upper horizontal piece 94 to move to the left through the upper fixing block 95. Under the rotational connection of the slide groove 98, the upper connecting piece 92 drives the rotating shaft 91 to rotate actively. Under the support of the support shaft 81, the lower connecting piece 93 moves to the right. Under the connection of the lower horizontal piece 96, the lower fixing block 97 drives the second side plate 22 to move toward the corrugated clamp 211 until the tooth groove on the surface of the protrusion 221 and the corrugation on the side of the corrugated clamp 211 bite the wire rope 6, which can lock the wire rope 6. When unlocking, the connecting plate 4 can be pushed into the locking housing 1.
[0035] Please see Figure 2 , 3 The connecting plate 4 extends through the interior of the limiting port 71, and the limiting seat 7 is detachably connected to the interior of the bottom buckle plate 2 via screws and mounting screw holes 72. The limiting seat 7 is installed inside the bottom buckle plate 2 via mounting screw holes 72. The connecting plate 4 passes through the interior of the limiting port 71, which can limit the connecting plate 4 and at the same time serve to fix and support the support frame 8.
[0036] Please see Figure 2 , 35. The wire rope 6 passes through the four sets of guide wheels 23 from the rope-passing port 5. The wire rope 6 passes vertically between the second side plate 22 and the corrugated clamp 211. The wire rope 6 passes between the two sets of patterned sleeves 232, which can cause the wheel axle 233 to drive the top rod 234 to squeeze the corresponding compression spring 236, which can clamp and position the wire rope 6. The telescopic cylinder 235 limits the extension and retraction of the top rod 234. The bearing 231 facilitates the rotation of the guide wheel 23 and the patterned sleeve 232. When there is no external force, the locking housing 1 is positioned at a certain point on the wire rope 6. When the locking housing 1 is subjected to external force, it can move along the wire rope 6, which can make the wire rope 6 pass vertically through the locking housing 1.
[0037] In use, the existing structural steel wire rope 6 is passed through the rope-passing port 5 between the four sets of guide wheels 23. The steel wire rope 6 passes vertically between the second side plate 22 and the corrugated clamp plate 211, and at this time the steel wire rope 6 does not contact the second side plate 22 and the corrugated clamp plate 211. The steel wire rope 6 passes between the two sets of patterned sleeves 232, which allows the wheel axle 233 to drive the top rod 234 to compress the corresponding clamping spring 236, thus clamping and positioning the steel wire rope 6. The telescopic cylinder 235 extends and limits the top rod 234. The bearing 231 facilitates the rotation of the guide wheels 23 and the patterned sleeves 232. Under no external force, the locking housing 1 is positioned at a certain point on the steel wire rope 6. When the locking housing 1 is subjected to external force, it can move along the steel wire rope 6, allowing the steel wire rope 6 to pass vertically through the locking housing. 1. A hook is integrally provided at one end of the connecting plate 4. The worker hangs the safety rope on the hook. In case of an accident, the worker's own weight pulls the connecting plate 4 through the safety rope and the hook. The limiting seat 7 is installed inside the bottom buckle plate 2 through the mounting screw hole 72. The connecting plate 4 passes through the inside of the limiting port 71, which can limit the connecting plate 4 and at the same time serve to fix and support the support frame 8. At this time, the first side plate 21 drives the corrugated clamp 211 to move towards the second side plate 22. Through the linkage mechanism 9, the second side plate 22 moves towards the corrugated clamp 211 at the same time. The guide column 213 slides along the corresponding first guide port 27 and second guide port 31, which guides the movement of the first side plate 21 and the second side plate 22. (Refer to the attached document.) Figure 4 and 6 The corrugated clamp 211 drives the upper horizontal piece 94 to move to the left via the upper fixing block 95. Under the rotational connection of the slide groove 98, the upper connecting piece 92 drives the rotating shaft 91 to rotate actively. Under the support of the support shaft 81, the lower connecting piece 93 moves to the right. Under the connection of the lower horizontal piece 96, the lower fixing block 97 drives the second side plate 22 to move towards the corrugated clamp 211 until the tooth groove on the surface of the protrusion 221 and the corrugation on the side of the corrugated clamp 211 bite the wire rope 6, thus locking the wire rope 6. When unlocking, the connecting plate 4 can be pushed into the locking housing 1. The positioning mechanism composed of the second side plate 22 and the corrugated clamp 211 can move simultaneously. The starting stroke is short and the response is fast. The state before locking can be restored without disassembly.
[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
Claims
1. A safety self-locking device for wire ropes, comprising a locking housing (1), characterized in that: The latch housing (1) includes a bottom latch plate (2) and a top latch plate (3). The top latch plate (3) is movably connected to the top of the bottom latch plate (2). The top of the (2) has a rope-threading opening (5). The bottom latch plate (2) has a limiting seat (7) and a linkage mechanism (9) movably installed inside. The linkage mechanism (9) is located on one side of the limiting seat (7). The bottom fastener (2) is internally provided with a first side plate (21) and a second side plate (22), with the first side plate (21) movably disposed on one side of the second side plate (22). A corrugated clamping plate (211) is fixedly disposed on one side of the bottom of the first side plate (21), and guide plates (212) are fixedly disposed at both ends of the first side plate (21). Guide posts (213) are fixedly disposed on the top of the guide plates (212) and on the bottom of the second side plate (22). A protrusion (221) is fixedly disposed on one side of the second side plate (22) corresponding to the first side plate (21), and the surface of the protrusion (221) is provided with a toothed groove. The interior of the bottom fastener (2) Guide wheels (23) are rotatably mounted at each of the four corners. A bearing (231) is fixedly installed inside the guide wheel (23). A patterned sleeve (232) is fixedly fitted in the middle of the guide wheel (23). A wheel axle (233) is fixedly passed through the inside of the bearing (231). A locking block is fixedly provided at the top and bottom of both ends of the wheel axle (233). A push rod (234) is fixedly provided on the outer periphery of both ends of the wheel axle (233). A telescopic cylinder (235) is fitted on one end of the push rod (234). A compression spring (236) is movably provided inside the telescopic cylinder (235). The compression spring (236) is fixedly connected to one end of the push rod (234). The limiting seat (7) has a limiting opening (71) in the middle inside. Both ends of the limiting seat (7) are provided with mounting screw holes (72). A support frame (8) is fixedly provided on one side of the limiting seat (7). A support shaft (81) is fixedly provided in the middle of the support frame (8). The linkage mechanism (9) includes a rotating shaft (91), an upper connecting piece (92), a lower connecting piece (93), an upper horizontal piece (94), an upper fixing block (95), a lower horizontal piece (96), and a lower fixing block (97). The upper connecting piece (92) and the lower connecting piece (93) are respectively fixed to the top and bottom of the rotating shaft (91). The upper connecting piece (92) and the lower connecting piece (93) are both provided with sliding grooves (98). The upper horizontal piece (94) is rotatably connected to one end of the upper connecting piece (92). The upper fixing block (95) is rotatably connected to one end of the upper horizontal piece (94). The lower horizontal piece (96) is rotatably connected to one end of the lower connecting piece (93). The lower fixing block (97) is rotatably connected to one end of the lower horizontal piece (96).
2. The safety self-locking device for wire rope according to claim 1, characterized in that: The bottom plate (2) and top plate (3) are respectively provided with a first guide opening (27) and a second guide opening (31) at the position corresponding to the guide post (213), and the guide post (213) is slidably disposed inside the corresponding first guide opening (27) and second guide opening (31).
3. The safety self-locking device for wire rope according to claim 1, characterized in that: The bottom buckle plate (2) and the top buckle plate (3) are provided with wheel axle grooves (26) at the positions corresponding to the guide wheel (23), and the top and bottom ends of the wheel axle grooves (26) are provided with slots, and the slots are slidably disposed inside the corresponding slots.
4. A safety self-locking device for wire rope according to claim 1, characterized in that: Both the bottom buckle plate (2) and the top buckle plate (3) have an opening (24) on one side. A connecting plate (4) is fixedly connected to one side of the first side plate (21), and the connecting plate (4) moves through the inside of the opening (24).
5. A safety self-locking device for wire rope according to claim 1, characterized in that: The bottom buckle plate (2) and the top buckle plate (3) are provided with fixing holes (25) on their edges, and several sets of fixing holes (25) are provided. The bottom buckle plate (2) and the top buckle plate (3) are detachably connected by screws and fixing holes (25).
6. A safety self-locking device for wire rope according to claim 4, characterized in that: The connecting plate (4) extends through the interior of the limiting port (71), and the limiting seat (7) is detachably connected to the interior of the bottom buckle plate (2) by screws and mounting screw holes (72).
7. A safety self-locking device for wire rope according to claim 1, characterized in that: The second side plate (22) is slidably disposed inside the support frame (8), and the support shaft (81) is movably inserted through the inside of the rotating shaft (91).
8. A safety self-locking device for wire rope according to claim 1, characterized in that: The upper fixing block (95) is fixedly connected to the corrugated clamp (211), and the lower fixing block (97) is fixedly connected to the second side plate (22).