A safety line bumper

Abstract

This application relates to the technical field of safety protection equipment and discloses a safety rope buffer, which includes a housing and a braided strip disposed within the housing. It also includes a pre-tensioning component, a take-up and release component, and a transmission component. The pre-tensioning component senses the static pre-tension force generated by the user's weight. The take-up and release component includes a rotatable reel disposed within the housing and a spiral spring that applies a winding force to the reel. The braided strip is wound onto the reel. The transmission component converts the pre-tension force sensed by the pre-tensioning component into rotation of the reel, thereby releasing or winding up a braided strip of a corresponding length. This application pre-winds the braided strip onto a reel. During use, the pre-tensioning component automatically drives the reel to release a corresponding length of braided strip based on the worker's weight, allowing the buffer length of the braided strip to adapt to the buffering needs of users of different weights, thus improving the flexibility of the safety rope buffer.

Description

Technical Field

[0001] This application relates to the technical field of safety protection equipment, and in particular to a safety rope buffer. Background Technology

[0002] As a core component of personal protective equipment (PPE) systems for workers at height, the performance of safety rope buffers directly impacts their safety. In high-altitude work scenarios such as construction, power, communications, and wind power maintenance, workers frequently face the risk of accidental falls. In the event of a fall, the body accelerates rapidly under gravity; without effective cushioning, the body experiences tremendous impact force when the rope system tightens instantly. This impact can easily lead to spinal injuries, internal organ damage, and even suspension injuries caused by the safety belt, resulting in serious secondary injuries. The fundamental function of safety rope buffers is to transform this instantaneous high-intensity impact into a continuous and relatively gentle deceleration process through a controllable energy dissipation mechanism. This limits the impact force on the body to a biomechanically tolerable safety threshold, buying valuable time for rescue. It is an indispensable key piece of equipment in modern high-altitude work safety.

[0003] Currently, in related technical fields, a widely used safety rope buffer employs the principle of braided strap tearing energy absorption. This device typically includes a rope bag and a high-strength braided strap folded and stored within it. The braided strap is folded in a specific manner to form a double-layer structure, with both ends secured by carefully calculated and arranged stitches. One end of the braided strap is connected to the worker's safety harness via a connector, while the other end is connected to a buffer rope. The end of the buffer rope has climbing loops, allowing workers to attach themselves to pre-set anchor points during climbing. When a fall occurs, the climbing loops fixed to the anchor points violently pull on one end of the braided strap via the buffer rope. Simultaneously, the falling worker's own weight acts on the other end of the braided strap through the safety harness. Under this bidirectional pulling force, the braided strap is rapidly straightened and unfolded, tearing its pre-set stitches sequentially. This tearing process requires continuous work, converting most of the kinetic energy generated by the fall into the work needed to overcome the resistance of the stitches, thereby prolonging the impact time, reducing the peak load, and achieving cushioning protection for the personnel.

[0004] While the aforementioned braided tear-resistant shock absorbers are widely used, their design has a significant limitation: their cushioning performance, particularly the effective unfolded length of the braided straps and the tear strength of the stitching, is typically designed and optimized based on a standard weight range (approximately 100 kg), and these parameters are fixed at the factory. This fixed design introduces two opposing safety hazards in practical applications. For workers who are significantly overweight, the kinetic energy carried during a fall is greater. The fixed braided strap length may be exhausted before the stitching is completely torn and the energy absorption process is complete, resulting in some unabsorbed kinetic energy being converted into the final impact on the body. This could cause the final impact force to exceed safety limits, leading to ineffective cushioning and weakened protection. Conversely, for underweight workers, the kinetic energy generated during a fall may not be sufficient to completely and promptly tear all the pre-set stitching. The shock absorber cannot enter the predetermined full-stroke energy absorption state, similarly failing to provide effective cushioning, and the person will still face a higher impact risk. Therefore, current technology lacks the ability to adaptively adjust to users of different weights and urgently needs improvement to achieve more precise and universal safety protection. Summary of the Invention

[0005] To improve the flexibility of using safety rope buffers, this application provides a safety rope buffer.

[0006] The safety rope buffer provided in this application adopts the following technical solution: A safety rope buffer includes a housing and a braided strip disposed within the housing, and further includes a pretensioning assembly, a take-up and release assembly, and a transmission assembly. The pretensioning assembly is connected to one end of the braided strip that is attached to the safety belt and is used to sense a static pretension force generated by the user's weight. The take-up and release assembly includes a rotatable spool disposed within the housing and a spiral spring that applies a take-up force to the spool. The braided strip is wound onto the spool. The transmission assembly is connected between the pretensioning assembly and the take-up and release assembly and is used to convert the pretension force sensed by the pretensioning assembly into rotation of the spool to release or rewind a braided strip of a corresponding length.

[0007] By adopting the above technical solution, when the safety rope buffer is not in use, the spiral spring drives the reel to rotate, thereby winding the braided tape onto the reel. When workers of different weights use the safety rope buffer, gravity is first applied to the end of the braided tape connected to the safety belt. Then, the braided tape generates different amounts of pretension force on the pretensioning component, causing the pretensioning component to drive the transmission component to produce different degrees of movement, which in turn drives the winding and unwinding component to move, causing the reel to start rotating and releasing a certain length of braided tape. The release length of the braided tape can be pre-adjusted according to the different weights of the workers, making the effective buffering length of the braided tape more suitable for the current user's weight. For heavier users, the pre-pulled braided tape is longer, ensuring sufficient stroke to fully absorb their greater fall kinetic energy; for lighter users, the pre-pulled braided tape is shorter, avoiding the embarrassment of insufficient kinetic energy to effectively trigger the buffer. This allows the same buffer to provide equally effective impact protection for workers of different weights, greatly improving the universality and safety of the equipment and increasing the flexibility of the safety rope buffer in use.

[0008] Optionally, the pretensioning assembly includes a pretensioning slider, a sensing spring, and a sliding rack. The pretensioning slider is connected to one end of the braided strap that is attached to the seat belt. The pretensioning slider is provided with a clamping element for holding the braided strap. The pretensioning slider is slidably disposed inside the housing. One end of the sensing spring is connected to the pretensioning slider and the other end is fixed to the housing to balance the pretensioning force. The sliding rack is fixed to the pretensioning slider.

[0009] By adopting the above technical solution, when the weight of a person is applied to the end where the braided rope connects to the seat belt, the braided rope first pulls the pre-tensioning slider closer to the seat belt. Then, the pre-tensioning slider compresses the sensing spring, so that the weight of the person is partially balanced by the elastic force of the sensing spring. At the same time, the pre-tensioning slider pulls the sliding rack closer to the seat belt, causing the sliding rack to drive the transmission component, thereby driving the reel to release the braided rope. This ensures that the reel can release the braided rope of an appropriate buffer length according to users of different weights. The clamping component ensures the reliability of force transmission between the braided rope and the pre-tensioning slider, while the sliding rack provides a stable and efficient connection for converting the linear motion of the slider into the rotational motion of the reel. This makes the entire pre-tensioning assembly compact and reliable in operation.

[0010] Optionally, the transmission assembly includes a first gear meshing with a sliding rack and a second gear meshing with the first gear, the second gear being fixed on a spool.

[0011] By employing the above technical solution, when the sliding rack moves towards the side closer to the safety belt, it drives the first gear to rotate, which in turn drives the second gear to rotate, thereby rotating the reel and releasing the braided rope. The transmission via gear meshing ensures precise, smooth, and efficient power delivery. This mechanical transmission method requires no electricity, relies on physical contact, and is more reliable and durable in harsh high-altitude working environments. The gear ratio can be carefully designed to achieve precise control over the release length of the braided rope, making the correspondence between body weight and the release amount more accurate, further optimizing the precision of adaptive adjustment.

[0012] Optionally, the housing is provided with a transparent indicator window, the indicator window corresponds to the position of the pre-tightening slider, and a weight scale line is provided on one side of the indicator window on the housing.

[0013] By adopting the above technical solution, when using the safety rope buffer, the staff can observe through the indicator window whether the pre-tensioning slider has slid to the scale line corresponding to their own weight, since the weight scale line on the shell matches the weight borne by the braided rope. This allows them to determine whether the braided rope has been released normally, reducing the risk of the braided rope not being released properly due to the failure of internal parts of the shell. It also makes it easier for users to detect buffer failures in a timely manner, adds a safety barrier for manual inspection, and reduces the risk of causing a larger accident.

[0014] Optionally, a locking mechanism is also included, comprising a trigger wheel mounted on the spool, a centrifugal locking block slidably mounted on the trigger wheel, and a locking pawl hinged within the housing. The locking pawl has an oblong hole, in which a push rod is slidably mounted. A connecting spring is connected to the side of the centrifugal locking block near the center of the trigger wheel, and the connecting spring has a tendency to drive the centrifugal locking block closer to the center of the trigger wheel. A locking ratchet is mounted on the spool, and the locking pawl is inclined toward the locking ratchet. When the centrifugal locking block slides away from the center of the trigger wheel, the centrifugal locking block can push the push rod to slide in the oblong hole.

[0015] By adopting the above technical solution, when a worker falls, the force acting on the end connecting the braided rope and the safety belt will suddenly increase, causing the braided rope to accelerate the sliding of the pre-tensioning slider. This, in turn, causes the pre-tensioning slider to move the sliding rack quickly. The sliding rack, through the first and second gears, drives the reel to rotate rapidly, which in turn drives the trigger wheel to rotate rapidly. This causes the centrifugal locking block on the trigger wheel to slide away from the center of the trigger wheel under the action of centrifugal force. This causes the centrifugal locking block to push the push rod to slide in the oblong hole and rotate the locking pawl towards the locking ratchet. This causes the ratchet teeth of the locking ratchet to be locked by the locking pawl, thus fixing the reel and fixing the release length of the braided belt. This ensures that the length of the braided belt torn during a fall is the pre-released length, meeting the cushioning needs of workers of different weights.

[0016] When the braided tape is completely torn, the worker's weight is entirely concentrated on the end of the tape closest to the safety belt. This causes the tape itself to tend to rotate the reel, and simultaneously, it tends to move the pre-tensioning slider and sliding rack. This causes the sliding rack to drive the reel to rotate in the direction of releasing the tape. At this point, because the locking pawl is engaged with the locking ratchet, the more the tape and sliding rack drive the reel to rotate, the more firmly the locking ratchet is held in place by the locking pawl. This ensures a more secure fixation of the reel and a more stable tape length, guaranteeing the worker's height stability after a fall and reducing the risk of a secondary fall, further ensuring worker safety. When the tape is pre-released, since no fall has occurred, the reel and trigger wheel rotate at a slower speed. The centrifugal locking block does not easily slip, thus preventing the locking pawl from engaging the locking ratchet, allowing the reel to release the tape normally.

[0017] Optionally, at least two of the centrifugal locking block, push rod, and locking pawl are evenly arranged along the circumference of the trigger wheel.

[0018] By adopting the above technical solution, when one of the centrifugal locking blocks is jammed or unable to slide due to a malfunction, the other centrifugal locking blocks can still slide normally, thereby normally pushing the push rod and locking pawl to jam the locking ratchet, ensuring the stability of the reel when a fall occurs, thereby further ensuring the buffering effect of the buffer belt and the safety after a fall, and improving the fault tolerance rate of the locking mechanism.

[0019] Optionally, the winding force provided by the spiral spring is less than the minimum static tension required to tear the braided tape.

[0020] By adopting the above technical solution, when a fall occurs, because the winding force of the spiral spring is less than the minimum tensile force that can tear the braided tape, the braided tape can tear normally during the fall, instead of being continuously wound on the roller by the spiral spring, thus ensuring the buffering effect of the shock absorber.

[0021] Optionally, the stitch density on the braided tape gradually increases from the end away from the spool to the end closer to the spool.

[0022] By adopting the above technical solution, when a fall occurs, the lower stitch density at both ends of the braided strap allows it to tear quickly and gradually to a longer length, ensuring the strap can effectively cushion the fall. Conversely, the higher stitch density at the end closer to the reel increases the force required to tear the strap, thus gradually increasing the kinetic energy dissipated from the worker's fall. This means the resistance to the worker's descent gradually increases, preventing a sudden and excessive drop, improving the comfort and experience of the shock absorber, and reducing the possibility of secondary injury when the shock absorber is in operation.

[0023] In summary, this application includes at least one of the following beneficial technical effects: The braided rope is wound onto the reel by a spiral spring. When the worker uses the safety rope buffer, the worker's own weight will first pull the braided rope close to the end of the safety belt, which will cause the braided rope to drive the pre-tension slider, sliding rack and first gear and second gear to move, thereby driving the reel to release the braided rope length corresponding to the weight, so as to adapt to different cushioning needs and improve the flexibility of the safety rope buffer. When a fall occurs, the kinetic energy of the body falling freely will first cause the braided belt to move rapidly in the direction of gravity. This causes the pre-tensioning slider to drive the sliding rack, the first gear, and the second gear to move rapidly. This causes the trigger wheel to rotate rapidly and the centrifugal locking block to rotate and lock the pawl, thus fixing the locking ratchet and the reel. This keeps the length of the braided belt unchanged, ensuring the cushioning effect of the braided belt and reducing the risk of a secondary fall. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0025] Figure 2 This is a partial structural diagram of the transmission component shown after the housing is hidden in an embodiment of this application.

[0026] Figure 3 This is a partial structural diagram of the push rod shown after the housing is hidden in an embodiment of this application.

[0027] Figure 4 This is a partial structural diagram of the locking pawl shown after the housing is hidden in an embodiment of this application.

[0028] Figure 5 This is a partial cross-sectional structural diagram of the centrifugal locking block shown after the shell is hidden in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures: 1. Housing; 11. Indicator window; 12. Weight scale line; 2. Braided belt; 3. Pre-tensioning assembly; 31. Pre-tensioning slider; 311. Clamping component; 32. Sensing spring; 33. Sliding rack; 4. Retraction assembly; 41. Reel; 411. Locking ratchet; 42. Spiral spring; 5. Transmission assembly; 51. First gear; 52. Second gear; 6. Locking mechanism; 61. Trigger wheel; 62. Centrifugal locking block; 63. Locking pawl; 631. Waist-shaped hole; 64. Push rod; 65. Connecting spring. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0031] This application discloses a safety rope buffer.

[0032] Reference Figure 1 and Figure 2 A safety rope buffer includes a housing 1, a braided belt 2, a pretensioning assembly 3, a take-up and release assembly 4, a transmission assembly 5, and a locking mechanism 6. The pretensioning assembly 3 is connected to one end of the braided belt 2 that is attached to the safety belt. The take-up and release assembly 4 includes a rotatable roller 41 disposed within the housing 1 and a spiral spring 42 that applies a winding force to the roller 41. The braided belt 2 is wound onto the roller 41. The transmission assembly 5 is connected between the pretensioning assembly 3 and the take-up and release assembly 4. The locking mechanism 6 is disposed on the roller 41.

[0033] Reference Figure 2 The above-mentioned structure, when combined, can convert the static pretension force generated by the user's weight sensed by the pretensioning component 3 into the rotation of the reel 41, thereby releasing or winding the braided belt 2 of the corresponding length, realizing adaptive adjustment for users of different weights; at the same time, the locking mechanism 6 can prevent the braided belt 2 from being over-released during a fall, effectively avoiding the problem of poor cushioning effect caused by the braided belt 2 being released too long, and reducing the risk of secondary falls.

[0034] Reference Figure 2 and Figure 3 The pretensioning assembly 3 includes a pretensioning slider 31, a sensing spring 32, and a sliding rack 33. The pretensioning slider 31 is connected to one end of the braided strap 2 that is attached to the safety belt. The pretensioning slider 31 is provided with a clamping element 311 for holding the braided strap 2. This clamping element 311 can be in the form of a clip or a slot, as long as it can securely hold the braided strap 2. When a fall occurs, the braided strap 2 tears rapidly, and the clamping force of the clamping element 311 is insufficient to hold the braided strap 2, allowing the braided strap 2 to slide rapidly on the pretensioning slider 31.

[0035] Reference Figure 1 andFigure 3 The pre-tightening slider 31 is slidably disposed inside the housing 1. Its sliding method can be achieved by setting a guide rail inside the housing 1, allowing the pre-tightening slider 31 to slide on the guide rail, ensuring stability and smoothness of the sliding. One end of the sensing spring 32 is connected to the pre-tightening slider 31, and the other end is fixed to the housing 1, used to balance the pre-tightening force.

[0036] Reference Figure 2 When a user wears the seatbelt, the force generated by their weight is transmitted to the pretensioning slider 31 through the braided strap 2. The pretensioning slider 31, under tension, compresses the sensing spring 32. The degree of elastic deformation of the sensing spring 32 and the displacement of the pretensioning slider 31 reflect the user's weight. A sliding rack 33 is fixed to the pretensioning slider 31; when the pretensioning slider 31 slides, the sliding rack 33 also moves accordingly.

[0037] Reference Figure 1 and Figure 2 The winding shaft 41 of the winding assembly 4 is rotatably mounted inside the housing 1, and its rotation can be achieved by bearings to reduce friction during rotation. The spiral spring 42 applies a winding force to the winding shaft 41. One end of the spiral spring 42 is fixed to the winding shaft 41, and the other end is fixed to the housing 1. The winding force provided by the spiral spring 42 is less than the minimum static tensile force required to tear the braided tape 2.

[0038] Reference Figure 2 When the spool 41 rotates to release the braided tape 2, the spiral spring 42 is stretched and stores elastic potential energy; when it is necessary to rewind the braided tape 2, the spiral spring 42 releases elastic potential energy, driving the spool 41 to rotate and rewind the braided tape 2.

[0039] Reference Figure 2 The transmission assembly 5 includes a first gear 51 meshing with the sliding rack 33 and a second gear 52 meshing with the first gear 51. The second gear 52 is fixed on the reel 41. When the pre-tension slider 31 slides and drives the sliding rack 33 to move, the sliding rack 33 will drive the first gear 51 to rotate, and the first gear 51 will then drive the second gear 52 to rotate. Since the second gear 52 is fixed on the reel 41, the reel 41 will rotate accordingly, thereby realizing the release or rewinding of the braided tape 2.

[0040] Reference Figure 1 and Figure 2The housing 1 has a transparent indicator window 11, which corresponds to the position of the pre-tensioning slider 31. A weight scale line 12 is provided on one side of the indicator window 11 on the housing 1. The indicator window 11 can be made of transparent plastic or other materials to facilitate observation of the position of the pre-tensioning slider 31. The weight scale line 12 is calibrated according to the position of the pre-tensioning slider 31 corresponding to different weights. This allows users to intuitively understand whether their weight is within the applicable range of the shock absorber by observing the weight scale line 12 corresponding to the pre-tensioning slider 31 in the indicator window 11, and to promptly check whether the braided strap 2 has been properly released.

[0041] Reference Figure 2 , Figure 4 and Figure 5 The locking mechanism 6 includes a trigger wheel 61 mounted on the spool 41, a centrifugal locking block 62 slidably mounted on the trigger wheel 61, and a locking pawl 63 hinged in the housing 1. The locking pawl 63 has an oblong hole 631, and a push rod 64 is slidably mounted in the oblong hole 631. A connecting spring 65 is connected to the side of the centrifugal locking block 62 near the center of the trigger wheel 61. The connecting spring 65 is used to fix the centrifugal locking block 62 to the side near the spool 41.

[0042] Reference Figure 2 , Figure 4 and Figure 5 The scroll 41 is equipped with a locking ratchet 411, and the locking pawl 63 is inclined toward the locking ratchet 411. At least two centrifugal locking blocks 62, locking pawls 63, and push rods 64 are evenly arranged along the circumference of the trigger wheel 61. In this embodiment, a torsion spring can be provided on the hinge shaft of the locking pawl 63 to keep the initial position of the locking pawl 63 inclined toward the locking ratchet 411.

[0043] Reference Figure 2 , Figure 4 and Figure 5 When a fall occurs, the spool 41 rotates rapidly, and the trigger wheel 61 also rotates rapidly. Under centrifugal force, the centrifugal locking block 62 slides outward along the trigger wheel 61, thus pushing the push rod 64 to slide in the oblong hole 631. The push rod 64 then drives the locking pawl 63 to rotate. When the locking pawl 63 rotates to a certain position, it engages with the ratchet teeth of the locking ratchet 411, thereby locking the spool 41 and preventing the braided belt 2 from continuing to release.

[0044] Reference Figure 4A fixing spring (not shown in the figure) can be provided on the wall of the oblong hole 631 to fix the initial position of the push rod 64. One end of the fixing spring is connected to the wall of the oblong hole 631, and the other end is connected to the push rod 64, so as to limit the push rod 64 to the wall of the oblong hole 631 near the trigger wheel 61. The push rod 64 will only slide in the oblong hole 631 when the centrifugal locking block 62 pushes it, thereby rotating the locking pawl 63 to fix the locking ratchet 411.

[0045] Reference Figure 2 The stitching density of the braided tape 2 (not shown in the figure) gradually increases from the end away from the spool 41 to the end closer to the spool 41. This design allows the braided tape 2 to tear first from the end with the lower stitching density during the fall, and as the braided tape 2 unfolds, the tear strength of the stitching gradually increases, which can better adapt to the energy absorption needs at different stages and further improve the cushioning effect.

[0046] The implementation principle of a safety rope buffer in this embodiment is as follows: The safety rope buffer senses the static preload generated by the user's weight through the pretensioning component 3, and converts this preload into the rotation of the reel 41 using the transmission component 5, thereby automatically adjusting the length of the braided strap 2. This allows the buffer to adapt to users of different weights, improving the flexibility of the safety rope buffer. The locking mechanism 6 adds safety to the safety rope buffer, preventing excessive release of the braided strap 2 during a fall and reducing the possibility of a secondary fall after the initial fall, further ensuring the safety of workers. This buffer solves the problem of insufficient adaptive adjustment capability for users of different weights, achieving more precise and universal safety protection, and providing more reliable safety for workers working at heights.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A safety rope buffer, comprising a housing (1) and a braided strap (2) disposed within the housing (1), characterized in that: It also includes a pretensioning assembly (3), a take-up and release assembly (4), and a transmission assembly (5). The pretensioning assembly (3) is connected to one end of the braided tape (2) on the seat belt and is used to sense the static pretensioning force generated by the user's weight. The take-up and release assembly (4) includes a rotatable spool (41) disposed in the housing (1) and a spiral spring (42) that applies a winding force to the spool (41). The braided tape (2) is wound on the spool (41). The transmission assembly (5) is connected between the pretensioning assembly (3) and the take-up and release assembly (4) and is used to convert the pretensioning force sensed by the pretensioning assembly (3) into the rotation of the spool (41) to release or wind up the braided tape (2) of the corresponding length.

2. A safety rope buffer according to claim 1, characterized in that: The pretensioning assembly (3) includes a pretensioning slider (31), a sensing spring (32), and a sliding rack (33). The pretensioning slider (31) is connected to one end of the braided belt (2) on the safety belt. The pretensioning slider (31) is provided with a clamping member (311) for clamping the braided belt (2). The pretensioning slider (31) is slidably disposed in the housing (1). One end of the sensing spring (32) is connected to the pretensioning slider (31), and the other end is fixed to the housing (1) to balance the pretensioning force. The sliding rack (33) is fixed on the pretensioning slider (31).

3. A safety rope buffer according to claim 2, characterized in that: The transmission assembly (5) includes a first gear (51) meshing with a sliding rack (33) and a second gear (52) meshing with the first gear (51), the second gear (52) being fixed on a spool (41).

4. A safety rope buffer according to claim 2, characterized in that: The housing (1) is provided with a transparent indicator window (11), the position of which corresponds to the position of the pre-tightening slider (31), and a weight scale line (12) is provided on one side of the indicator window (11) on the housing (1).

5. A safety rope buffer according to claim 1, characterized in that: It also includes a locking mechanism (6), which includes a trigger wheel (61) mounted on the spool (41), a centrifugal locking block (62) slidably mounted on the trigger wheel (61), and a locking pawl (63) hinged in the housing (1). The locking pawl (63) has a waist-shaped hole (631) and a push rod (64) slidably mounted in the waist-shaped hole (631). The centrifugal locking block (62) is connected to a side near the center of the trigger wheel (61). A connecting spring (65) is provided, which tends to drive the centrifugal locking block (62) closer to the center of the trigger wheel (61). A locking ratchet (411) is provided on the spool (41), and the locking pawl (63) is inclined toward the locking ratchet (411). When the centrifugal locking block (62) slides away from the center of the trigger wheel (61), the centrifugal locking block (62) can push the push rod (64) to slide in the waist-shaped hole (631).

6. A safety rope buffer according to claim 5, characterized in that: The centrifugal locking block (62), push rod (64) and locking pawl (63) are all evenly arranged in at least two along the circumference of the trigger wheel (61).

7. A safety rope buffer according to claim 1, characterized in that: The winding force provided by the spiral spring (42) is less than the minimum static tension required to tear the braided tape (2).

8. A safety rope buffer according to claim 1, characterized in that: The stitch density on the braided tape (2) gradually increases from the end away from the spool (41) to the end closer to the spool (41).

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