A high-altitude anti-falling device

Abstract

The utility model discloses a high altitude anti -falling device relates to high altitude operation technical field, it includes installation board, locking assembly and buffer assembly, through setting up translation element, bearing element and first damper between locking assembly and safety rope, and with locking assembly transmission connection of translation element, translation element is slidably arranged in installation board. The utility model through the impact force that first damper bears when locking assembly is locked and forms, thereby reducing the impact force that goods receives, thereby can effectively to the goods of hoisting, the protection of the connecting place of goods and sling.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude operations technology, and in particular to a high-altitude fall arrestor. Background Technology

[0002] A fall arrestor is a safety device used during high-altitude hoisting to prevent cargo from falling due to slippage of the hoisting rope. It typically consists of a safety rope, a hoisting rope, and a locking mechanism. The safety rope is usually fixed to the hoisting device, and the locking mechanism is mounted on the installation rope. The hoisting rope passes through the locking mechanism before hoisting the cargo. Under normal use, the hoisting rope, the safety rope, and the locking mechanism do not bear the weight of the cargo. When slippage occurs between the hoisting rope and the hoisting device, the cargo falls rapidly, causing relative displacement between the hoisting rope and the locking mechanism. This triggers the locking mechanism to lock the hoisting rope, at which point the safety rope bears the weight of the cargo. Fall arrestors are widely used in high-altitude operations such as construction, power, bridges, and shipbuilding.

[0003] Existing high-altitude fall arrestors use rigid connections for locking mechanisms and safety ropes. When the rope slips off the lifting device, the cargo falls due to gravity. The sudden locking of the locking mechanism causes the connection between the cargo and the rope to bear the full impact force of the rope displacement and rigid locking at an instant. This results in a large instantaneous force on the cargo at the point of hoisting, which can easily damage the cargo. Utility Model Content

[0004] The main purpose of this utility model is to propose a high-altitude fall arrestor, which aims to solve the technical problem that existing high-altitude fall arrestors are prone to damage to goods due to instantaneous rigid locking when triggered.

[0005] To achieve the above objectives, this utility model proposes a high-altitude fall arrestor, comprising: a mounting plate on which a locking assembly is mounted, the locking assembly being drivenly connected to a hoisting rope; a buffer assembly comprising a translational element, a first damper, and a load-bearing element connected in sequence, the translational element being slidably mounted on the mounting plate and being drivenly connected to the locking assembly; one end of the load-bearing element being connected to a safety rope, and the other end being slidably mounted on the translational element, the first damper being installed between the translational element and the load-bearing element; when the hoisting rope and the locking assembly generate relative displacement, the locking assembly drives the translational element and the load-bearing element to move relative to each other, and the first damper buffers the displacement between the load-bearing element and the translational element.

[0006] Optionally, the translation element is a slider, which includes a first connecting part and a second connecting part connected together. The first connecting part is connected to the locking assembly in a transmission manner. The second connecting part has a limit hole, and the load-bearing element is movably installed in the limit hole. One end of the first damper is connected to the first connecting part, and the other end is connected to the load-bearing element.

[0007] Optionally, the first damper is a spring; the limiting hole includes an upper hole and a lower hole that are connected, the diameter of the upper hole is smaller than that of the lower hole, and the load-bearing element part passes through the lower hole and is embedded in the upper hole; the first damper is disposed in the lower hole.

[0008] Optionally, one end of the load-bearing element is connected to the safety rope, and the other end is provided with a mounting block. The mounting block has a groove, and the translation element is movably disposed in the groove. The load-bearing element also includes a limiting element, which passes through the upper hole and the lower hole in sequence and is detachably connected to the groove. The portion of the limiting element located in the upper hole restricts the displacement of the translation element in the thickness direction. The portion of the limiting element located in the lower hole abuts against the first damper.

[0009] Optionally, the buffer assembly further includes a first adapter element and a second adapter element, which are respectively disposed at both ends of the first damper; the first adapter element is mounted on the first connecting part and partially blocks the outlet of the lower hole; the second adapter element is located between the first damper and the limiting element.

[0010] Optionally, the limiting element is a bolt, including a nut and a stud, and the bottom of the groove has a threaded hole for installing the limiting element; the nut of the limiting element is located in the upper hole, and the outer diameter of the nut of the limiting element is larger than the diameter of the lower hole; the second adapter element includes a straight rod section and an end, the straight rod section is located in the first damper, a part of the end is located in the upper hole and abuts against the nut of the limiting element, and the other part of the end is located in the lower hole and abuts against the stud of the limiting element.

[0011] Optionally, the load-bearing element is connected to a safety buckle for connecting to a safety rope in the work environment; a second damper is connected between the load-bearing element and the safety buckle.

[0012] Optionally, the load-bearing element is also provided with a threaded part; a first limiting plate and a second limiting plate are threadedly connected to the threaded part; the first limiting plate and the mounting block are respectively located on both sides of the mounting plate; a connecting ring is also sleeved on the threaded part, the connecting ring is pressed against the first limiting plate and the second limiting plate, and the connecting ring is connected to the second damper.

[0013] Optionally, the locking assembly includes a ratchet, a first drive wheel, and a second drive wheel. A first positioning shaft and a second positioning shaft are provided on the mounting plate. Both the ratchet and the first drive wheel can be mounted on the first positioning shaft, and the ratchet and the first drive wheel are relatively stationary. The second drive wheel is rotatably mounted on the second positioning shaft. The second drive wheel meshes with the first drive wheel, and the second drive wheel is connected to the translation element. At least two ratchets are provided on the mounting plate, and a gap is formed between the two ratchets for the passage of the lifting rope. When the lifting rope moves relative to the ratchet, the ratchet drives the second drive wheel to rotate.

[0014] Optionally, the mounting plate is also provided with a first guide wheel group and a second guide wheel group along the length of the hoisting rope; the locking component is provided between the first guide wheel group and the second guide wheel group; the first guide wheel group and the second guide wheel group are both composed of two guide wheels distributed on both sides of the hoisting rope, and one of the guide wheels is provided with a limit protrusion along the circumference, the limit protrusion is used to restrict the hoisting rope from the axial direction of the guide wheel.

[0015] This utility model discloses a high-altitude fall arrestor. It comprises a translational element, a load-bearing element, and a first damper positioned between a locking assembly and a safety rope. The translational element is connected to the locking assembly via a transmission mechanism and is slidably mounted on a mounting plate. During normal operation, the hoisting rope passes through the locking assembly, and the mounting plate, load-bearing element, translational element, and first damper are all suspended from the rope via the locking assembly. The safety rope does not bear any weight. When slippage occurs between the hoisting rope and the lifting device, the cargo causes the rope to descend rapidly, triggering the locking assembly, which in turn moves the translational element. The load-bearing element is installed on the safety rope. When the locking assembly triggers the locking, the translational element and the load-bearing element undergo relative displacement. The first damper buffers this relative displacement, ensuring that the locking mechanism, when transferring the load of the cargo to the safety rope, forms a flexible lock buffered by the first damper. This means the first damper bears part of the locking force, reducing the stress at the connection between the cargo and the sling when the locking assembly locks. This prevents excessive stress at the connection point from causing breakage or damage to the cargo. Furthermore, this invention uses the first damper to absorb the impact force generated by the locking assembly during locking, thereby reducing the impact force on the cargo and effectively protecting the hoisted cargo and the connection point between the cargo and the sling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention without the protective shell, in which the lifting rope and safety rope are represented by dashed lines; Figure 3 This is an exploded view of the present invention; Figure 4 This is a side view of the present invention; Figure 5This is a formal schematic diagram of the present invention, with the protective housing and ratchet omitted; Figure 6 This is a schematic diagram of the buffer component structure; Figure 7 This is a breakdown diagram of the buffer component; Figure 8 This is a schematic diagram of the connection structure between the translational element and the load-bearing element. Figure 9 This is a schematic diagram of the translation element. Figure 10 for Figure 9 Schematic diagram of the cross section of AA; Figure 11 This is an exploded view of the mounting structure on the load-bearing component.

[0018] Explanation of icon numbers: 1. Mounting plate; 11. Protective housing; 12. First positioning shaft; 13. Second positioning shaft; 2. First guide wheel assembly; 3. Second directional wheel assembly; 31. Limiting protrusion; 4. Locking assembly; 41. Ratchet; 42. First transmission wheel; 43. Second transmission wheel; 5. Buffer assembly; 51. Translation element; 511. First connecting part; 512. Second connecting part; 513. Limiting hole; 513a. Upper hole body; 513b. Lower hole 52. Body; 521. Load-bearing element; 522. Mounting block; 522. Slide groove; 522a. Limiting element; 523. Threaded part; 524. First limiting plate; 525. Second limiting plate; 526. Connecting ring; 527. Annular groove; 53. First adapter element; 54. First damper; 55. Second adapter element; 551. Straight rod section; 552. End; 6. Second damper; 7. Safety buckle; 8. Lifting rope; 9. Safety rope.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] 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.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, provided that they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] This utility model proposes a high-altitude fall arrestor.

[0024] In the embodiments of this utility model, such as Figures 1-7 As shown, a high-altitude fall arrestor includes: a mounting plate 1, on which a locking assembly 4 is mounted, and the locking assembly 4 is tractively connected to a hoisting rope 8; a buffer assembly 5, which includes a translation element 51, a first damper 54, and a load-bearing element 52 connected in sequence. The translation element 51 is slidably mounted on the mounting plate 1 and is tractively connected to the locking assembly 4; one end of the load-bearing element 52 is connected to a safety rope 9, and the other end is slidably mounted on the translation element 51; the first damper 54 is installed between the translation element 51 and the load-bearing element 52; when the hoisting rope 8 and the locking assembly 4 are relatively displaced, the locking assembly 4 causes the translation element 51 and the load-bearing element 52 to move relative to each other, and the first damper 54 buffers the displacement between the load-bearing element 52 and the translation element 51.

[0025] Specifically, a translation element 51, a load-bearing element 52, and a first damper 54 are arranged between the locking assembly 4 and the safety rope 9, and the translation element 51 is connected to the locking assembly 4 in a transmission manner. The translation element 51 is slidably mounted on the mounting plate 1. During normal operation, the hoisting rope 8 passes through the locking assembly 4, and the mounting plate 1, the load-bearing element 52, the translation element 51, and the first damper 54 are all suspended on the hoisting rope 8 through the locking assembly 4. The safety rope 9 does not bear any weight. When the hoisting rope 8 slips from the lifting device, the cargo causes the hoisting rope 8 to move rapidly downwards, triggering the locking assembly 4, which in turn causes the locking assembly 4 to move the translation element 51. The load-bearing element 52 is installed on the safety rope 9. When the locking assembly 4 triggers the locking, the translation element 51 and the load-bearing element 52 undergo relative displacement. The first damper 54 buffers the relative displacement between the translation element 51 and the load-bearing element 52, so that when the locking assembly transfers the load on the cargo to the safety rope 9, the locking is a flexible locking buffered by the first damper 54. That is, the first damper 54 bears part of the locking force, thereby reducing the force on the connection between the cargo and the hoisting rope 8 when the locking assembly 4 locks. This prevents the connection from breaking or the cargo from being damaged due to excessive stress at the connection between the hoisting rope 8 and the cargo. This utility model reduces the impact force on the cargo by having the first damper 54 bear the impact force generated by the locking assembly 4 when locking, thereby effectively protecting the hoisted cargo and the connection between the cargo and the hoisting rope 8.

[0026] Optionally, the locking assembly 4 can be a common mechanism in existing fall arresters, such as a ratchet 41 mechanism or a friction locking device. Optionally, the translation element 51 is a slider. The translation element 51 includes a first connecting part 511 and a second connecting part 512 connected together. The first connecting part 511 is connected to the locking assembly 4 in a transmission manner. The second connecting part 512 has a limit hole 513, and the load-bearing element 52 is movably installed in the limit hole 513. One end of the first damper 54 is connected to the first connecting part 511, and the other end is connected to the load-bearing element 52.

[0027] Specifically, the first damper 54 is a device for generating damping force, which in this embodiment can be a spring, a hydraulic cylinder, or a pneumatic cylinder. The first connecting part 511 and the second connecting part 512 are integrally formed or welded to form the overall structure of the slider, ensuring that the slider can stably drive the load-bearing element 52 to move when sliding. The limiting hole 513 is a strip-shaped hole, through which a part of the load-bearing element 52 passes and can move along the length of the strip-shaped hole, giving the load-bearing element 52 a certain displacement space when subjected to external force. The first damper 54, the first connecting part 511, and the load-bearing element 52 can be connected by bolts, snap-fit, or welding to form a buffer system. When the load-bearing element 52 moves within the limiting hole 513, the first damper 54 can generate resistance to its displacement.

[0028] In this embodiment, when the suspension rope 8 is locked by the locking component 4, the load-bearing element 52 will be displaced along the length direction of the limiting hole 513 within the limiting hole 513 due to the impact force. At the same time, it cooperates with the first damper 54 to make the displacement process smoother, thereby avoiding rigid collision between the load-bearing element 52 and the mounting plate 1, ensuring the realization of the buffering effect, and thus reducing the damage of the impact force to the entire system.

[0029] Optionally, the first damper 54 is a spring; the limiting hole 513 includes an upper hole 513a and a lower hole 513b that are connected, the diameter of the upper hole 513a is smaller than that of the lower hole 513b, and the load-bearing element 52 partially passes through the lower hole 513b and is embedded in the upper hole 513a; the first damper 54 is disposed in the lower hole 513b.

[0030] Specifically, such as Figures 1-10 As shown, the first damper 54 in this embodiment is a compression spring. The limiting hole 513 is a stepped hole formed by connecting an upper hole 513a and a lower hole 513b, both of different lengths and widths. The portion of the load-bearing element 52 near the slider passes through the lower hole 513b and is restricted by the upper hole 513a, forming a movable but limited installation method. By embedding a portion of the load-bearing element 52 into the upper hole 513a, the load-bearing element 52 is simultaneously restricted by both the upper hole 513a and the lower hole 513b when it is displaced, preventing it from continuing to move upwards out of the limiting hole 513 and avoiding complete disengagement. Thus, when the suspension rope 8 is locked, a certain amount of displacement is allowed to cooperate with the spring buffer, while ensuring the stability of the structure and preventing the load-bearing element 52 from failing due to excessive impact force.

[0031] In this embodiment, by defining the first damper 54 as a spring, the elastic properties of the spring can more effectively absorb the impact energy when the suspension rope 8 is locked, slowing down the displacement speed of the load-bearing element 52, thereby significantly reducing the instantaneous tension at the connection between the cargo and the suspension rope 8 and protecting it from damage. The limiting hole 513 consists of an upper hole body 513a and a lower hole body 513b. The small diameter design of the upper hole body 513a limits the movement range of the load-bearing element 52, ensuring the stability of the buffering process, while the large diameter of the lower hole body 513b provides sufficient space for the installation of the spring and the movement of the load-bearing element 52. The length dimension of the upper hole body 513a is smaller than that of the lower hole body 513b, which can also prevent excessive displacement of the load-bearing element 52 from causing excessive compression of the first damper 54 in the lower hole body 513b. This structure not only enhances the buffering effect, but also makes the components more compact, facilitating installation and maintenance, and further improving the safety and reliability of the high-altitude fall arrestor.

[0032] Optionally, one end of the load-bearing element 52 is connected to the safety rope 9, and the other end is provided with a mounting block 521. The mounting block 521 has a groove 522, and the translation element 51 is movably disposed in the groove 522. The load-bearing element 52 also includes a limiting element 522a, which passes through the upper hole 513a and the lower hole 513b in sequence and is detachably connected to the groove 522. The portion of the limiting element 522a located in the upper hole 513a restricts the displacement of the translation element 51 in the thickness direction. The portion of the limiting element 522a located in the lower hole 513b abuts against the first damper 54.

[0033] Specifically, such as Figures 1-10 As shown, the slide groove 522 is a groove-like structure opened on the mounting block 521. Its shape matches the translation element 51, facilitating the accommodation of the translation element 51 and allowing it to move within the groove. It can be a straight groove, an arc groove, or a guide groove of other shapes. The limiting element 522a is used to pass through the limiting hole 513 and connect to the slide groove 522, while also abutting or connecting with the first damper 54. The limiting element 522a can be a bolt, a pin, or other detachable connector. The portion of the limiting element 522a located within the upper hole 513a contacts the translation element 51 through its structure (such as a head or protrusion) but does not press against the translation element 51, allowing the translation element 51 to move within the slide groove 522 while limiting its displacement in the thickness direction (i.e., the direction perpendicular to the mounting plate 1). Simultaneously, the portion of the limiting element 522a located within the lower hole 513b directly abuts against the first damper 54, causing the spring to apply elastic resistance to the load-bearing element 52 when it moves.

[0034] In this embodiment, the limiting element 522a not only realizes the detachable connection between the translation element 51 and the load-bearing element 52, which facilitates the installation, disassembly and maintenance of the buffer assembly 5; but also ensures the stability of its movement trajectory by limiting the displacement of the translation element 51 in the thickness direction, thus avoiding buffer failure caused by accidental offset.

[0035] Optionally, the buffer assembly 5 further includes a first adapter element 53 and a second adapter element 55, which are respectively disposed at both ends of the first damper 54; the first adapter element 53 is mounted on the first connecting part 511 and partially blocks the outlet of the lower hole 513b; the second adapter element 55 is located between the first damper 54 and the limiting element 522a.

[0036] Specifically, such as Figures 1-10As shown, the first adapter element 53 is used to fix and support one end of the first damper 54. The first adapter element 53 can be plate-shaped, block-shaped, or other fasteners with a certain rigidity. Preferably, the first adapter element 53 includes a first part and a second part that are perpendicular to each other and connected. The first part of the first adapter element 53 is cylindrical and is snap-fitted or threaded into the first connecting part 511 of the translation element 51. The first part of the first adapter element 53 is installed along the thickness direction of the translation element 51. The second part of the first adapter element 53 is arranged along the length direction of the translation element 51 and is located outside the lower hole 513b. The second part is a straight plate and partially covers the lower hole 513b. The second part of the first adapter element 53, together with the obscured portion of the lower bore 513b, forms a cavity for accommodating the first damper 54. This prevents the first damper 54 from sliding out or shifting from the lower bore 513b due to external forces, while still allowing the first damper 54 to undergo necessary compression or extension within the lower bore 513b. This ensures the stability of the first damper 54, facilitates assembly and maintenance, and guarantees the reliability of the buffer assembly 5 during operation of the high-altitude fall arrester. Furthermore, the second part of the first limiting element 522a can share the impact of the limiting element 522a with the upper bore 513a. The second adapter element 55 is located between the first damper 54 and the limiting element 522a and is used to position the connection between them.

[0037] In this embodiment, the first adapter element 53 fixes one end of the first damper 54 and partially blocks the outlet of the lower hole 513b, effectively preventing the first damper 54 from shifting or falling off during the buffering process, ensuring its stable position, thereby allowing the buffering force to be applied continuously and evenly, and avoiding the impact force caused by damper failure from acting directly on the connection between the cargo and the lifting rope 8. Secondly, the second adapter element 55 is used to position the connection between the first damper 54 and the limiting element 522a, so that the damping force can act more directly and efficiently on the load-bearing element 52, improving the accuracy and response speed of the buffering.

[0038] Optionally, the limiting element 522a is a bolt, including a nut and a stud. The bottom of the groove 522 has a threaded hole for installing the limiting element 522a. The nut of the limiting element 522a is located in the upper hole 513a, and the outer diameter of the nut of the limiting element 522a is larger than the diameter of the hole in the lower hole 513b. The second adapter element 55 includes a straight rod section 551 and an end 552. The straight rod section 551 is located in the first damper 54. A part of the end 552 is located in the upper hole 513a and abuts against the nut of the limiting element 522a. The other part of the end 552 is located in the lower hole 513b and abuts against the stud of the limiting element 522a.

[0039] Specifically, such as Figures 1-10As shown, the nut is located inside the upper hole 513a, and its outer diameter is larger than the diameter of the lower hole 513b. The nut abuts against the bottom wall of the upper hole 513a but is not tightly closed, allowing relative displacement between the upper hole 513a and the nut. The stud has external threads for connecting with the threaded hole at the bottom of the groove 522, allowing the translation element 51 to move within the groove 522. However, the displacement of the translation element 51 within the groove 522 is limited by the displacement distance of the nut within the upper hole 513a. The end 552 spans the upper hole 513a and the lower hole 513b, with its upper part located inside the upper hole 513a and in contact with the nut, and its lower part located inside the lower hole 513b and in contact with the stud. The end 552 can act on both the nut and the stud simultaneously, forming a stable force transmission path. When the first damper 54 is compressed or stretched, the end 552 transmits the damping force to the limiting element 522a through contact with the nut and stud, thereby affecting the movement state of the load-bearing element 52 and achieving a buffering function. In addition, the contact between the end 552 and the stud can also prevent the stud from swaying or shifting during movement, improving the stability of the overall structure.

[0040] More specifically, end 552 is located at one end of straight rod section 551 near the limiting element 522a. Its shape is stepped. The upper half of the stepped shape is located in the upper hole 513a and abuts against the nut. The lower half of the stepped shape is located in the lower hole 513b and abuts against the stud. This achieves positioning of the connection between the first damper 54 and the limiting element 522a, preventing the first damper 54 from deviating when compressed.

[0041] Optionally, the load-bearing element 52 is connected to a safety buckle 7, which is used to connect to a safety rope 9 in the working environment; a second damper 6 is connected between the load-bearing element 52 and the safety buckle 7.

[0042] Specifically, such as Figures 1-6 As shown, the safety buckle 7 can be a metal ring, hook-shaped structure, or other high-strength and wear-resistant component capable of withstanding significant tensile force. The safety buckle 7 is connected to the load-bearing element 52 via a second damper 6, connecting the fall arrestor to the safety rope 9 in the working environment (such as a safety rope 9 fixed to a building or lifting device). In the event of a fall, the safety buckle 7 transmits tension through the safety rope 9, ensuring the safety of goods and personnel. The second damper 6 can be composed of a tension spring, hydraulic damper, or other elastic element, generating resistance to slow the movement when subjected to external force. In this embodiment, the second damper 6 is positioned between the load-bearing element 52 and the safety buckle 7, acting as a buffer to reduce the direct impact of the fall on the safety rope 9 and the connection point, protecting the structural integrity of the device.

[0043] During high-altitude operations, when the hoisting rope 8 slips and causes the cargo to fall, the locking assembly 4 is triggered and locks the hoisting rope 8, and the load-bearing element 52 bears the weight of the cargo. At this time, the impact force generated by the fall is transmitted through the translation element 51, the first damper 54, to the load-bearing element 52, and then from the load-bearing element 52 to the second damper 6. The second damper 6 absorbs part of the energy and slows down the transmission speed of the force through its elasticity or damping characteristics, and finally transmits the buffered force to the safety buckle 7 and the safety rope 9 in the working environment. When a fall occurs, the second damper 6 can assist the first damper 54 in forming a buffering effect on the impact force, dispersing the load on the first damper 54, extending the service life of the first damper 54, and reducing maintenance costs.

[0044] Optionally, the load-bearing element 52 is also provided with a threaded portion 523; a first limiting plate 524 and a second limiting plate 525 are threadedly connected to the threaded portion 523; the first limiting plate 524 and the mounting block 521 are respectively located on both sides of the mounting plate 1; a connecting ring 526 is also sleeved on the threaded portion 523, the connecting ring 526 is pressed against by the first limiting plate 524 and the second limiting plate 525, and the connecting ring 526 is connected to the second damper 6.

[0045] Specifically, such as Figures 1-11 As shown, the load-bearing element 52 has a shaft-like structure, and its surface is machined with external threads to form a threaded portion 523. The threaded portion 523 is used to connect the first limiting plate 524 and the second limiting plate 525 via threads. The first limiting plate 524 and the second limiting plate 525 together clamp the connecting ring 526, restricting its movement on the threaded portion 523. The connecting ring 526 is connected to the second damper 6. The outer dimensions of the first limiting plate 524 and the mounting block 521 are both larger than the outer diameter of the load-bearing element 52. The mounting plate 1 has a through hole with a diameter that is the same as or slightly larger than the outer diameter of the load-bearing element 52. During installation, after the end of the load-bearing element 52 away from the mounting block 521 passes through the through hole of the mounting plate 1, the first limiting plate 524 is locked onto the threaded part 523, so that the mounting plate 1 is clamped between the mounting block 521 and the first limiting plate 524, that is, an annular groove 527 for accommodating the mounting plate 1 is formed between the mounting block 521 and the first limiting plate 524.

[0046] Optionally, the first connecting part 511 and the locking assembly 4 can be driven by gear meshing, linkage connection or sliding groove 522, so that the movement of the locking assembly 4 can drive the slider to slide on the mounting plate 1.

[0047] In this embodiment, as Figures 1-5As shown, the locking assembly 4 is preferably a ratchet 41 assembly. The locking assembly 4 includes a ratchet 41, a first transmission wheel 42, and a second transmission wheel 43. A first positioning shaft 12 and a second positioning shaft 13 are provided on the mounting plate 1. Both the ratchet 41 and the first transmission wheel 42 can be mounted on the first positioning shaft 12, and the ratchet 41 and the first transmission wheel 42 are relatively stationary. The second transmission wheel 43 is rotatably mounted on the second positioning shaft 13. The second transmission wheel 43 meshes with the first transmission wheel 42, and the second transmission wheel 43 is connected to the translation element 51. At least two ratchet 41s are provided on the mounting plate 1, and a gap is formed between the two ratchet 41s for the passage of the lifting rope 8. When the lifting rope 8 moves relative to the ratchet 41, the ratchet 41 drives the second transmission wheel 43 to rotate.

[0048] Correspondingly, the translation element 51 is a rack or a toothed plate, and the first connecting part 511 is a part with meshing teeth. The first connecting part 511 of the translation element 51 meshes with the second transmission wheel 43.

[0049] Specifically, during high-altitude operations, under normal circumstances, the hoisting rope 8 does not move relative to the ratchet 41, and the locking assembly 4 is not triggered. When a fall occurs, the hoisting rope 8 moves rapidly, causing the ratchet 41 to rotate, which in turn drives the translation element 51 to move through the first transmission wheel 42 and the second transmission wheel 43, activating the buffer assembly 5 to absorb the impact force.

[0050] Optionally, the mounting plate 1 is also provided with a first guide wheel group 2 and a second guide wheel group along the length of the hoisting rope 8; the locking component 4 is disposed between the first guide wheel group 2 and the second guide wheel group; the first guide wheel group 2 and the second guide wheel group are both composed of two guide wheels distributed on both sides of the hoisting rope 8, and one of the guide wheels is provided with a limiting protrusion 31 in the circumferential direction, the limiting protrusion 31 is used to restrict the hoisting rope 8 from the axial direction of the guide wheel.

[0051] Specifically, such as Figures 1-5 As shown, the guide wheel includes a large diameter section and a small diameter section. The lifting rope 8 passes through the small diameter section between two adjacent guide wheels. The limiting protrusion 31 blocks the gap between two adjacent guide wheels, so that the lifting rope 8 can only pass through the gap between the limiting protrusion 31 and the mounting plate 1.

[0052] In this embodiment, the gap between the first guide wheel group 2 and the second guide wheel group is on the same straight line and is aligned with the gap between the two ratchet 41 of the locking component 4. The hoisting rope 8 maintains the correct alignment and tension when passing through the locking component 4, avoiding misjudgment or failure of the locking component 4 due to the deviation or swing of the hoisting rope 8. This allows the locking component 4 to detect the movement of the hoisting rope 8 more accurately and trigger the locking mechanism, thereby improving the sensitivity and reliability of the locking.

[0053] In this embodiment, a protective housing 11 is also provided on the mounting plate 1. The protective housing 11 covers the locking mechanism to prevent parts from falling and causing injury to personnel below. The protective housing 11 has a gap for the hoisting rope 8 to pass through.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-altitude fall arrestor, characterized in that, include: Mounting plate (1), on which a locking assembly (4) is mounted, and the locking assembly (4) is connected to a lifting rope (8). A buffer assembly (5) includes a translation element (51), a first damper (54), and a load-bearing element (52) connected in sequence. The translation element (51) is slidably mounted on the mounting plate (1) and is connected to the locking assembly (4). One end of the load-bearing element (52) is connected to a safety rope (9), and the other end is slidably mounted on the translation element (51). The first damper (54) is installed between the translation element (51) and the load-bearing element (52). When the suspension rope (8) and the locking assembly (4) are relatively displaced, the locking assembly (4) causes the translation element (51) and the load-bearing element (52) to move relatively, and the first damper (54) buffers the displacement between the load-bearing element (52) and the translation element (51).

2. The high-altitude fall arrestor as described in claim 1, characterized in that, The translation element (51) is a slider, and the translation element (51) includes a first connecting part (511) and a second connecting part (512) connected together. The first connecting part (511) is connected to the locking assembly (4) in a transmission manner. The second connecting part (512) has a limiting hole (513), and the load-bearing element (52) is movably installed in the limiting hole (513); One end of the first damper (54) is connected to the first connecting part (511), and the other end is connected to the load-bearing element (52).

3. The high-altitude fall arrestor as described in claim 2, characterized in that, The first damper (54) is a spring; The limiting hole (513) includes an upper hole (513a) and a lower hole (513b) that are connected. The diameter of the upper hole (513a) is smaller than that of the lower hole (513b). The load-bearing element (52) partially passes through the lower hole (513b) and is embedded in the upper hole (513a). The first damper (54) is disposed inside the lower bore (513b).

4. The high-altitude fall arrestor as described in claim 3, characterized in that, One end of the load-bearing element (52) is connected to the safety rope (9), and the other end is provided with a mounting block (521). A groove (522) is provided on the mounting block (521), and the translation element (51) is movably disposed in the groove (522). The load-bearing element (52) also includes a limiting element (522a), which passes through the upper hole (513a) and the lower hole (513b) in sequence and is detachably connected to the slide groove (522). The portion of the limiting element (522a) located within the upper bore (513a) restricts the displacement of the translation element (51) in the thickness direction; the portion of the limiting element (522a) located within the lower bore (513b) abuts against the first damper (54).

5. The high-altitude fall arrestor as described in claim 4, characterized in that, The buffer assembly (5) further includes a first adapter element (53) and a second adapter element (55), which are respectively disposed at both ends of the first damper (54); The first adapter element (53) is mounted on the first connecting part (511), and the first adapter element (53) partially blocks the outlet of the lower hole (513b); The second adapter element (55) is located between the first damper (54) and the limiting element (522a).

6. The high-altitude fall arrestor as described in claim 5, characterized in that, The limiting element (522a) is a bolt, which includes a nut and a stud. The bottom of the groove (522) is provided with a threaded hole for installing the limiting element (522a). The nut of the limiting element (522a) is located inside the upper hole (513a), and the outer diameter of the nut of the limiting element (522a) is larger than the diameter of the lower hole (513b). The second adapter element (55) includes a straight rod section (551) and an end (552). The straight rod section (551) is located inside the first damper (54). A portion of the end (552) is located inside the upper bore (513a) and abuts against the nut of the limiting element (522a). Another portion of the end (552) is located inside the lower bore (513b) and abuts against the stud of the limiting element (522a).

7. The high-altitude fall arrestor as described in claim 4, characterized in that, The load-bearing element (52) is connected to a safety buckle (7), which is used to connect to a safety rope (9) in the working environment; A second damper (6) is connected between the load-bearing element (52) and the safety buckle (7).

8. The high-altitude fall arrestor as described in claim 7, characterized in that, The load-bearing element (52) is also provided with a threaded part (523); a first limiting plate (524) and a second limiting plate (525) are threadedly connected to the threaded part (523); The first limiting plate (524) and the mounting block (521) are located on both sides of the mounting plate (1); A connecting ring (526) is also sleeved on the threaded part (523). The connecting ring (526) is pressed against by the first limiting plate (524) and the second limiting plate (525). The connecting ring (526) is connected to the second damper (6).

9. The high-altitude fall arrestor as described in claim 1, characterized in that, The locking assembly (4) includes a ratchet (41), a first drive wheel (42) and a second drive wheel (43), and the mounting plate (1) is provided with a first positioning shaft (12) and a second positioning shaft (13). Both the ratchet (41) and the first transmission wheel (42) can be mounted on the first positioning shaft (12), and the ratchet (41) and the first transmission wheel (42) are relatively stationary. The second transmission wheel (43) is rotatably mounted on the second positioning shaft (13); the second transmission wheel (43) meshes with the first transmission wheel (42), and the second transmission wheel (43) is connected to the translation element (51) in a transmission connection; At least two ratchet wheels (41) are provided on the mounting plate (1), and a gap is formed between the two ratchet wheels (41) for the hoisting rope (8) to pass through. When the hoisting rope (8) moves relative to the ratchet wheel (41), the ratchet wheel (41) drives the second transmission wheel (43) to rotate.

10. The high-altitude fall arrestor as described in claim 1, characterized in that, The mounting plate (1) is also provided with a first guide wheel group (2) and a second guide wheel group (3) along the length of the suspension rope (8); the locking assembly (4) is disposed between the first guide wheel group (2) and the second guide wheel group (3); The first guide wheel group (2) and the second guide wheel group (3) are both composed of two guide wheels distributed on both sides of the hoisting rope (8), and one of the guide wheels is provided with a limiting protrusion (31) in the circumferential direction. The limiting protrusion (31) is used to restrict the hoisting rope (8) from the axial direction of the guide wheel.

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