A fall-preventing locking device for a person working at a high place

Abstract

The utility model relates to a kind of anti-falling locking device for high-altitude worker, comprising: ladder, multiple foot poles being set along length direction;Fixed assembly, including respectively being set in the first support and the second support of ladder both ends;Steel wire rope, two ends are connected with first support, second support respectively, and tensioned between first support and second support;Anti-falling device, configured to be able to be installed on the steel wire rope, and can slide along the extension direction of steel wire rope relative to steel wire rope;The anti-falling device includes connecting ring, the connecting ring is configured to be able to with the safety belt on the high-altitude worker detachable connection;Wherein, the anti-falling device is configured to be able to be fixed on steel wire rope and stop sliding when being subjected to downward tension greater than preset tension.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for working at heights, and in particular to a fall arrest device for workers working at heights. Background Technology

[0002] Currently, working at heights is widespread across various industries, especially in the wind power sector where high-altitude work projects are numerous. Personnel safety is paramount and essential for working at heights. Both human operational factors and environmental factors can lead to falls. Therefore, developing a safety device for use during working at heights to ensure personnel safety is of great significance. Utility Model Content

[0003] Based on the above analysis, the present invention aims to provide a fall arrest device for workers at heights, in order to solve the above problems.

[0004] The objective of this utility model is mainly achieved through the following technical solutions:

[0005] This utility model provides a fall arrest device for workers at heights, comprising:

[0006] A ladder, consisting of multiple steps arranged along its length;

[0007] The fixing components include a first bracket and a second bracket respectively disposed at both ends of the ladder;

[0008] The steel wire rope is connected at both ends to the first support and the second support respectively, and is tensioned between the first support and the second support;

[0009] A fall arrestor is configured to be mounted on the wire rope and to slide relative to the wire rope along the length of the wire rope; the fall arrestor includes a connecting ring configured to be detachably connected to a safety belt worn by a worker at height.

[0010] The fall arrestor is configured to stop sliding when subjected to a downward pulling force greater than a preset force and is fixed to the wire rope.

[0011] Furthermore, the fixing components and wire ropes are installed in the center of the ladder.

[0012] Furthermore, the fall arrestor also includes a clip assembly configured to secure the fixing component to the ladder;

[0013] The clip assembly includes a fixing clip and multiple fasteners;

[0014] The fixing member is provided with a slot that mates with the foot rod, and fixing plates located on both sides of the slot;

[0015] The fastener is configured to connect the first bracket or the second bracket to the fixing plate.

[0016] Furthermore, the fastener includes a bolt and a lock nut, the threaded end of the bolt passing through the first bracket or the second bracket and the fixing plate in sequence and then connected to the lock nut, and the lock nut abutting against the fixing plate.

[0017] Furthermore, a first washer is provided between the cap end of the bolt and the first bracket and the second bracket;

[0018] A second washer is provided between the locking nut and the fixing plate.

[0019] Furthermore, the first bracket and the second bracket are connected to the ladder via at least two sets of clamp assemblies.

[0020] Furthermore, one end of the wire rope is connected to the first bracket via a D-type shackle and a first clamp;

[0021] The other end of the wire rope is connected to the second bracket via a locking screw and a second clamp.

[0022] Furthermore, the first bracket is provided with a first connecting portion, and the first connecting portion is provided with a first mounting hole;

[0023] The second bracket is provided with a second connecting part, and the second connecting part is provided with a second mounting hole:

[0024] The D-type shackle is detachably installed in the first mounting hole, and one end of the wire rope passes through the D-type shackle, is bent, and then fixed with multiple first clamps.

[0025] One end of the lock screw buckle is detachably installed in the second mounting hole, and the other end of the steel wire rope passes through the other end of the lock screw buckle, is bent, and then fixed with multiple second clamps.

[0026] Furthermore, the locking screw is configured to adjust the wire rope to a tensioned state;

[0027] The lock screw includes:

[0028] The locking body is provided with an assembly channel, and a first locking sleeve group and a second locking sleeve group are respectively provided at both ends of the assembly channel;

[0029] The first adjusting rod includes a first threaded rod and a first disassembly buckle, wherein the first threaded rod passes through the first locking sleeve and extends into the assembly channel;

[0030] The second adjusting rod includes a connected second threaded rod and a second disassembly buckle, wherein the second threaded rod passes through the second locking sleeve and extends into the assembly channel;

[0031] In this configuration, one of the first disassembly buckle and the second disassembly buckle is detachably connected to one end of the wire rope, and the other is detachably connected to the second mounting hole of the second bracket.

[0032] The first locking sleeve is configured to adjust the length of the first threaded rod extending into the assembly channel, and the second locking sleeve is configured to adjust the length of the second threaded rod extending into the assembly channel, so as to adjust the length of the lock screw, thereby ensuring that the wire rope is in a taut state by adjusting the length of the lock screw.

[0033] Furthermore, the fall arresting device also includes at least one fixing clip, which is detachably mounted on the ladder and configured to at least secure the steel wire rope;

[0034] The fixing clamp includes a clamping part and a hook body connected together. The clamping part is detachably fixed to the foot rod and is located at a position corresponding to the wire rope; the hook body is hooked onto the wire rope.

[0035] Compared with the prior art, at least one of the beneficial effects that this utility model can achieve is that it provides a fall arrest device for workers at heights, which is not only reasonable in structure, practical in function, and safe and reliable, but also can prevent workers from falling and ensure their safety when they are working at heights.

[0036] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained through the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0037] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0038] Figure 1 This is a schematic diagram (I) of a fall arrest device for workers at heights, as described in a specific implementation.

[0039] Figure 2 This is a schematic diagram (II) of the structure of the fall arrest device for workers at heights in a specific implementation method;

[0040] Figure 3 This is a partial enlarged view of the fixing clip assembly installed on the ladder in a specific embodiment;

[0041] Figure 4 This is a partial enlarged view of the fixing clamp installed on the ladder in a specific embodiment;

[0042] Figure 5 This is a structural diagram of the D-type shackle in a specific implementation method;

[0043] Figure 6 This is a schematic diagram (I) showing the connection between the first or second clamp and the wire rope in a specific embodiment;

[0044] Figure 7 This is a schematic diagram (I) showing the connection between the first or second clamp and the wire rope in a specific embodiment;

[0045] Figure 8 This is a schematic diagram of the screw buckle structure in a specific implementation.

[0046] Figure label:

[0047] 1-Ladder; 11-Step; 2-Fixing component; 21-First bracket; 211-First connecting part; 212-First mounting hole; 22-Second bracket; 221-Second connecting part; 222-Second mounting hole; 3-Wire rope; 31-D-type shackle; 311-U-shaped frame; 312-Threaded lock; 32-First clamp; 33-Locking screw; 331-Lock body; 331a-Assembly channel; 331b-First Locking sleeve assembly; 331c-Second locking sleeve assembly; 332-First adjusting rod; 333-Second adjusting rod; 34-Second clamp; 4-Fall arrestor; 41-Connecting ring; 5-Clip assembly; 51-Fixing clip; 511-Clip groove; 512-Fixing plate; 52-Fastener; 521-Bolt; 522-Locking nut; 53-First washer; 54-Second washer; 6-Fixing clamp; 61-Clamping part; 62-Hook body. Detailed Implementation

[0048] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0049] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0051] The working surface of this utility model can typically be a plane or a curved surface, and can be inclined or horizontal. For ease of explanation, the embodiment of this utility model is placed on a horizontal surface and used on a horizontal surface, thereby defining "height" and "vertical".

[0052] A specific embodiment of this utility model discloses a fall arrest device for workers at heights, such as... Figures 1-8 As shown, it includes:

[0053] A ladder 1, with multiple steps 11 arranged along its length; the length direction of the ladder is its extension direction AA, and preferably, the steps are arranged parallel to each other at equal intervals.

[0054] The fixing component 2 includes a first bracket 21 and a second bracket 22 respectively disposed at both ends of the ladder 1;

[0055] The steel wire rope 3 is connected at both ends to the first support 21 and the second support 22 respectively, and is tensioned between the first support 21 and the second support 22;

[0056] The fall arrestor 4 is configured to be mounted on the wire rope 3 and to slide relative to the wire rope 3 along the extension direction of the wire rope 3 (the extension direction of the wire rope is the same as the extension direction AA of the ladder); the fall arrestor 4 includes a connecting ring 41, which is configured to be detachably connected to the safety belt worn by the worker at height.

[0057] The fall arrestor 4 is configured to stop sliding on the wire rope when subjected to a downward pulling force greater than a preset pulling force. In other words, if a worker working at height accidentally slips, the fall arrestor 5 can quickly stop on the wire rope to prevent the worker from falling.

[0058] The utility model provides a fall prevention and locking device for high-altitude operators (hereinafter simply referred to as the fall prevention and locking device), which not only has a reasonable structure, practical functions and reliable safety, but also can prevent personnel from falling when they are working at high altitude, ensuring the life safety of personnel.

[0059] The ladder 1 is arranged on a building or equipment that needs to climb to work at height, such as inside a high tower in the wind power field or on a signal tower, facilitating high-altitude operators to reach different heights of the building or equipment.

[0060] To facilitate the staff to climb and better protect the safety of the staff, the fixing component and the steel wire rope 3 are installed in the center of the ladder 1.

[0061] According to an embodiment of the present utility model, the fall prevention and locking device further includes a clip component 55, and the clip component 5 is configured to be able to fix the fixing component on the ladder 1. Specifically, the clip component 5 includes a fixed clip 51 and a plurality of fasteners 52. The fixed clip 51 is provided with a slot 511 that matches the tread bar 11, and fixing plates 512 located on both sides of the slot. Preferably, the slot wall of the slot and the fixing plate are integrally formed, that is, the cross-sectional shape of the fixed clip 51 is similar to the shape of the Chinese character "ji", that is, a groove 511 is formed by a bulge in the middle of a plate. The fasteners 52 are configured to be able to connect the first bracket 21 or the second bracket 22 with the fixing plate 511.

[0062] Insert the tread bar into the slot 511 of the fixed clip 51, and use the fasteners 52 to connect the fixing plates 512 on both sides of the slot 511 with the first bracket 21 or the second bracket 22 respectively, so as to install the first bracket or the second bracket on the ladder.

[0063] Exemplarily, the fastener 52 includes a bolt 521 and a lock nut 522. The threaded end of the bolt 521 passes through the first bracket 21 or the second bracket 22 and the fixing plate 512 in sequence and then is connected with the lock nut 522, and the lock nut 522 abuts against the fixing plate 512. Through holes or threaded holes are provided at the positions corresponding to the first bracket, the second bracket and the fixing plate. In this embodiment, the bolt is a hexagonal head bolt.

[0064] To improve the connection strength between the first bracket, the second bracket and the ladder, a first gasket 53 is provided between the cap end of the bolt 521 and the first bracket 21 and the second bracket 22, and a second gasket 54 is provided between the lock nut 522 and the fixing plate 512. The first gasket and the second gasket are made of a material with certain flexibility, such as a silicone gasket.

[0065] The clip assembly has the advantages of convenient and effective installation, less material usage, prevention of misuse, and improved efficiency of later maintenance.

[0066] To ensure the stability of the connection between the first and second supports and the ladder, the first support 21 and the second support 22 are connected to the ladder 1 via at least two sets of clamp assemblies 5. Specifically, the first support 21 and the second support 22 are each connected to at least two footboards via clamp assemblies. For example, the first support 21 is connected to three footboards via clamp assemblies, meaning the first support is longitudinally connected to three footboards, providing strong load-bearing capacity. The second support 22 is connected to two footboards via clamp assemblies.

[0067] According to a preferred embodiment of the present invention, one end of the wire rope 3 is connected to the first bracket 21 via a D-shaped shackle 31 and a first clamp 32, and the other end of the wire rope 3 is connected to the second bracket 22 via a locking screw buckle 33 and a second clamp 34. Specifically, the first bracket 21 is provided with a first connecting part 211, and the first connecting part 211 is provided with a first mounting hole 212; the second bracket 22 is provided with a second connecting part 221, and the second connecting part 221 is provided with a second mounting hole 222. The D-shaped shackle 31 is detachably installed in the first mounting hole 212, and one end of the wire rope 3 passes through the D-shaped shackle 31, bends, and is fixed by multiple first clamps 32; one end of the locking screw buckle 33 is detachably installed in the second mounting hole 222, and the other end of the wire rope 3 passes through the other end of the locking screw buckle 33, bends, and is fixed by multiple second clamps 34.

[0068] In this embodiment, the first and / or second clamps are aluminum-sleeved clamps, and the upper and lower ends of the wire rope are fixed by at least two clamps to increase the load-bearing capacity and ensure safety and reliability. For example,

[0069] Preferably, the first connecting part and the second connecting part protrude from the first bracket and the second bracket, so that the wire rope is parallel to the ladder and at a certain distance, which facilitates the fall arrestor to slide on the wire rope without being affected by the step roller, thereby improving the work efficiency of the workers.

[0070] The D-type shackle 31 includes a detachably connected U-shaped frame 311 and a threaded lock 312. The U-shaped frame has a through hole and a first threaded hole at each end. One end of the threaded lock 312 has a first threaded portion that mates with the first threaded hole, and the other end has a limiting knob. The first threaded portion of the threaded lock 312 passes through the through hole of the U-shaped frame 311 and is screwed into the first threaded hole. The threaded lock is rotated by the limiting knob. Preferably, a washer is provided between the limiting knob and the U-shaped frame 311 to improve the connection stability of the U-shaped frame 311 and the threaded lock 312.

[0071] The first clamp 32 and the second clamp 34 can use clamps with the same structure, which can fix the bent wire rope end to the wire rope. The first clamp (second clamp) is detachable (e.g., threaded connection) and can be adjusted according to height requirements, improving installation and maintenance efficiency. For example, the first clamp 32 (second clamp) includes a U-shaped buckle 321, a U-shaped lock 322, and two locking members 323. The first clamp has an axisymmetric structure. The two ends of the U-shaped buckle 321 are respectively provided with second threaded portions. The U-shaped lock 322 has two passageways that mate with the second threaded portions. The second threaded portions are inserted into the passageways and locked by the locking members 323 (e.g., nuts). The U-shaped buckle 321 and the U-shaped lock 322 are inserted together to limit the "O"-shaped mounting holes. The spacing of the "O"-shaped mounting holes is adjustable, meaning the length of the second threaded portion has a certain length. Depending on the diameter of the wire rope, the locking members 323 can lock the second threaded portion at different positions. It should be noted that when locking the end of the wire rope with the first or second clamp, the bent end of the rope should be close to the U-shaped buckle, and the main body of the wire rope should be close to the U-shaped lock. Figure 7 As shown.

[0072] To ensure the wire rope remains tensioned during use, the locking screw buckle 33 is configured to adjust the wire rope to a tensioned state. Exemplarily, the locking screw buckle 33 includes:

[0073] The locking body 331 is provided with an assembly channel 331a, and a first locking sleeve group 331b and a second locking sleeve group 331c are respectively provided at both ends of the assembly channel.

[0074] The first adjusting rod 332 includes a first threaded rod and a first disassembly buckle, wherein the first threaded rod passes through the first locking sleeve 331b and extends into the assembly channel 331a;

[0075] The second adjusting rod 333 includes a connected second threaded rod and a second disassembly buckle. The second threaded rod passes through the second locking sleeve 331c and extends into the assembly channel 331a.

[0076] One of the first and second disassembly buckles is detachably connected to one end of the wire rope, and the other is detachably connected to the second mounting hole.

[0077] The first locking sleeve assembly 331b is configured to adjust the length of the first threaded rod extending into the assembly channel 331a, and the second locking sleeve assembly 331c is configured to adjust the length of the second threaded rod extending into the assembly channel 331a, so as to adjust the length of the lock screw buckle 33, thereby ensuring that the wire rope is in a taut state by adjusting the length of the lock screw buckle 33.

[0078] The first and second detachment buckles are shaped similarly to a D-type shackle to facilitate installation and maintenance.

[0079] When using the anti-fall locking device of this utility model for the first time, the length of the lock screw is set to its maximum length. As the anti-fall locking device is used, the wire rope is stretched. The wire rope can be kept taut by shortening the length of the lock screw.

[0080] To ensure the stability of the wire rope on the ladder, the fall arresting device further includes at least one fixing clamp 6, which is detachably mounted on the tread roller 11 of the ladder 1 and configured to at least stabilize the wire rope. The fixing clamp 6 includes a connected clamping part 61 and a hook 62. The clamping part 61 is detachably fixed to the tread roller 11 and located at a position corresponding to the wire rope 3; the hook 62 hooks onto the wire rope to prevent it from swaying on the ladder and affecting its use. The hook 62 is shaped similarly to a "G".

[0081] Preferably, fixing clips are installed at intervals to prevent the wire rope from swinging and to increase safety.

[0082] The fall arrestor's connecting ring is locked to the worker's full-body safety harness. As the worker climbs up and down, the fall arrestor slides up and down along the steel cable. If the worker loses their footing, the fall arrestor can immediately lock onto the steel cable, preventing the worker from falling from a height.

[0083] The structure of the fall arrestor is existing technology, and the innovation of this utility model is not in the structure of the fall arrestor, so its structure will not be described in detail here.

[0084] It should be noted that the preset tension of the fall arrestor is no greater than 2 kg of weight, so as to ensure that any person can be prevented from falling from a height using the fall arrestor locking device of this utility model.

[0085] This invention can lock in the event of a fall while working at height, preventing the person from falling and thus ensuring their safety. The device has a reasonable structure, is easy to install, has practical functions, and is safe and reliable.

[0086] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fall arrest device for workers operating at heights, characterized in that, include: A ladder, consisting of multiple steps arranged along its length; The fixing components include a first bracket and a second bracket respectively disposed at both ends of the ladder; The steel wire rope is connected at both ends to the first support and the second support respectively, and is tensioned between the first support and the second support; A fall arrestor is configured to be mounted on the wire rope and to slide relative to the wire rope along the length of the wire rope; the fall arrestor includes a connecting ring configured to be detachably connected to a safety belt worn by a worker at height. The fall arrestor is configured to stop sliding when subjected to a downward pulling force greater than a preset force and is fixed to the wire rope.

2. The fall arresting device according to claim 1, characterized in that, The fixing components and steel wire ropes are installed in the center of the ladder.

3. The fall arresting device according to claim 1, characterized in that, It also includes a clip assembly configured to secure the fixing assembly to the ladder; The clip assembly includes a fixing clip and multiple fasteners; The fixing member is provided with a slot that mates with the foot rod, and fixing plates located on both sides of the slot; The fastener is configured to connect the first bracket or the second bracket to the fixing plate.

4. The fall arresting device according to claim 3, characterized in that, The fastener includes a bolt and a lock nut. The threaded end of the bolt passes through the first bracket or the second bracket and the fixing plate in sequence and is connected to the lock nut, and the lock nut abuts against the fixing plate.

5. The fall arresting device according to claim 4, characterized in that, A first washer is provided between the cap of the bolt and the first bracket and the second bracket; A second washer is provided between the locking nut and the fixing plate.

6. The fall arresting device according to any one of claims 3 to 5, characterized in that, The first bracket and the second bracket are connected to the ladder by at least two sets of clamp assemblies.

7. The fall arresting device according to claim 1, characterized in that, One end of the wire rope is connected to the first bracket via a D-type shackle and a first clamp; The other end of the wire rope is connected to the second bracket via a locking screw and a second clamp.

8. The fall arresting device according to claim 7, characterized in that, The first bracket is provided with a first connecting part, and the first connecting part is provided with a first mounting hole; The second bracket is provided with a second connecting part, and the second connecting part is provided with a second mounting hole: The D-type shackle is detachably installed in the first mounting hole, and one end of the wire rope passes through the D-type shackle, is bent, and then fixed with multiple first clamps. One end of the lock screw buckle is detachably installed in the second mounting hole, and the other end of the steel wire rope passes through the other end of the lock screw buckle, is bent, and then fixed with multiple second clamps.

9. The fall arresting device according to claim 7 or 8, characterized in that, The locking screw is configured to adjust the wire rope to a tensioned state; The lock screw includes: The locking body is provided with an assembly channel, and a first locking sleeve group and a second locking sleeve group are respectively provided at both ends of the assembly channel; The first adjusting rod includes a first threaded rod and a first disassembly buckle, wherein the first threaded rod passes through the first locking sleeve and extends into the assembly channel; The second adjusting rod includes a connected second threaded rod and a second disassembly buckle, wherein the second threaded rod passes through the second locking sleeve and extends into the assembly channel; In this configuration, one of the first disassembly buckle and the second disassembly buckle is detachably connected to one end of the wire rope, and the other is detachably connected to the second mounting hole of the second bracket. The first locking sleeve is configured to adjust the length of the first threaded rod extending into the assembly channel, and the second locking sleeve is configured to adjust the length of the second threaded rod extending into the assembly channel, so as to adjust the length of the lock screw, thereby ensuring that the wire rope is in a taut state by adjusting the length of the lock screw.

10. The fall arresting device according to claim 1, characterized in that, It also includes at least one fixing clip, which is detachably mounted on the ladder and configured to at least secure the wire rope; The fixing clamp includes a clamping part and a hook body connected together. The clamping part is detachably fixed to the foot rod and is located at a position corresponding to the wire rope; the hook body is hooked onto the wire rope.

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