CN115177886B - Falling protector structure and falling protection method - Google Patents

Abstract

The application discloses a falling protector structure and a falling protection method, which relate to the technical field of falling protection equipment and comprise a shell, a braking device and a safety rope, wherein the shell is provided with a fixed hook, a mounting groove is formed in the shell, the braking device is arranged in the mounting groove, the safety rope is wound on the braking device, the shell is provided with a wire outlet, and the end part of the safety rope is provided with the safety hook; the go-between that the safety rope periphery side slip cap was equipped with, the go-between has frictional force with the safety rope, the go-between is provided with the spliced pole, the casing is provided with the elastic drive spare that promotes the go-between and keeps away from the wire hole, the safety rope drives the go-between and slides to butt mounting groove cell wall towards the wire hole when falling, the casing is provided with the stretch-draw subassembly, the stretch-draw subassembly pulls out the safety rope to arresting gear braking safety rope when go-between butt mounting groove cell wall, the casing is provided with the buffering subassembly of the safety rope of buffering pull-out casing when go-between butt mounting groove cell wall. This application can increase more reaction times that reply is tenesmic when the tenesmus.

Description

Falling protector structure and falling protection method

Technical Field

The application relates to the technical field of anti-falling equipment, in particular to an anti-falling device structure and an anti-falling method.

Background

The falling protector is also called a speed difference device, is a product with a protection function, and can quickly brake and lock falling objects within a limited distance by using a differential braking principle.

At present, chinese utility model patent with publication number CN2159804Y discloses a safety hook, including casing, safety rope and arresting gear, the safety rope winding sets up in arresting gear, and arresting gear comprises ratchet, pawl, extension spring, central spring, guide pin bushing etc.. When in use, the shell is connected with a fixed object, the end part of the safety rope is fixed with a rope hook, and the safety rope hook is hooked with a safety belt tied up by a human body when in use. When the moving speed of the user is lower than the braking speed, the user can freely move within the range of the length of the safety rope without influencing the work. When the bicycle slips or falls carelessly, the falling speed is higher than the braking speed, the double-side ratchet wheel collides with the double-side pawl, the double-side pawl is propped against the double-side ratchet wheel by the rebound force of the tension spring to realize braking, and the safety rope pulls the user to prevent the falling.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when falling, a certain braking distance is needed to enable the braking device to enter a braking state, but if the braking distance is not enough during low-altitude operation, a user can directly impact the ground without making a response to the falling during the falling, so that the human body is greatly damaged.

Disclosure of Invention

In order to increase more reaction time for coping with falling when falling, the application provides a falling protector structure and a falling protection method.

In a first aspect, the application provides a falling protector structure, which adopts the following technical scheme:

a falling protector structure comprises a shell, a braking device and a safety rope, wherein the shell is provided with a fixed hook connected with a fixed object, the shell is internally provided with a mounting groove, the braking device is arranged in the mounting groove, the safety rope is wound on the braking device, the shell is provided with a wire outlet through which the safety rope is pulled out of the shell, and the end part of the safety rope is provided with the safety hook;

the utility model discloses a safety rope, including safety rope periphery side slip cover, go-between and safety rope have frictional force, the go-between is provided with and slides in the spliced pole of casing along wire hole axis direction, the casing is provided with the elastic drive spare that promotes the go-between and keep away from the wire hole, when falling safety rope drives the go-between and slides to butt mounting groove cell wall towards the wire hole, the casing is provided with the tensioning subassembly, the tensioning subassembly pulls out safety rope to arresting gear braking safety rope during go-between butt mounting groove cell wall, the buffering subassembly of the safety rope of casing is pulled out in the buffering when casing is provided with go-between butt mounting groove cell wall.

By adopting the technical scheme, when falling occurs, the pulling-out speed of the safety rope is instantly increased, and the safety rope drives the connecting ring to abut against the groove wall of the mounting groove, so that the pulled-out safety rope is buffered by the buffer component, and the speed of the safety rope separating from the shell is reduced; meanwhile, the tensioning assembly instantly pulls the safety rope out of the braking device until the braking device enters a braking state in advance, the safety rope is limited to be pulled out of the braking device, and the braking distance can be shortened to a certain extent. Whole process is simple to use, and the safety rope speed of pulling out when falling receives the buffering after promoting in the twinkling of an eye to begin to slow down, stops falling when the safety rope that pulls out because of arresting gear brakes in advance in the casing is whole to be pulled out the casing outside for can have more times to make the reaction of coping tenesmus when the tenesmus, and the safety rope receives the buffering, can very big slow down the speed of falling, reduces the impact force that the human body received when stopping falling.

Optionally, the tensioning assembly includes stretch-draw wheel and stretch-draw spring, stretch-draw wheel both ends are provided with the slider, the relative both sides cell wall of mounting groove has been seted up respectively and has been supplied the gliding spout of slider, stretch-draw spring installs in spout and one end butt in the slider, other end butt in the spout cell wall, the casing is used for locking the locking subassembly of stretch-draw wheel position when being provided with the compression of stretch-draw spring, the casing is provided with the unblock subassembly that is used for unblock stretch-draw wheel when the go-between butt in the mounting groove cell wall, stretch-draw wheel lock time safety rope be located stretch-draw wheel keep away from spring one side and with stretch-draw wheel periphery side sliding contact.

By adopting the technical scheme, when the connecting ring is abutted against the wall of the mounting groove, the tensioning spring is unlocked, at the moment, the tensioning spring is instantly and elastically released to push the tensioning wheel, the tensioning wheel drives the safety rope in the shell to move when sliding, the pulling speed of the safety rope in the braking device is rapidly increased, so that the braking device enters a braking state in advance, and the speed of the safety rope separating from the shell is reduced when the tensioning wheel pulls the safety rope; meanwhile, after the safety rope is limited to be pulled out of the braking device, the safety rope in the shell is pulled out of the shell under the action of the gravity of a human body, and the safety rope drives the tensioning wheel to extrude the tensioning spring, so that the elastic force of the tensioning spring acting on the tensioning wheel further buffers the pulling speed of the tensioning rope.

Optionally, the locking subassembly is including locking pothook and locking piece, stretch-draw wheel is kept away from safety rope one side and is provided with the support column that slides in the casing, the locking pothook sets up in the support column and is close to fixed couple one side, the casing slides and is provided with the locking post mutually vertically with the support column, the locking piece sets up in locking post towards locking pothook one side, the locking piece is seted up and is supplied the draw-in groove that locking pothook card is gone into, the casing is provided with the relative punctual drive locking piece of locking pothook towards the gliding power spring of locking pothook with the draw-in groove.

Through adopting above-mentioned technical scheme, power spring promotes the locking post and slides during the use, drives the locking piece and moves to locking pothook card and go into in the draw-in groove, is favorable to locking the state of tensioning wheel for tensioning spring is in compression state.

Optionally, the tensioning wheel is fixedly connected with the sliding block.

Through adopting above-mentioned technical scheme for the tensioning wheel is in quiescent condition when the casing is pulled out to the safety rope, promotes the frictional force between tensioning wheel and the safety rope, cushions the speed of pulling out of safety rope.

Optionally, the unblock subassembly is including unblock post and unblock piece, the unblock post slides in the casing and is located between wire hole and the locking post, the locking post is kept away from locking piece lopsidedness and is seted up and supply the gliding unblock face of unblock post, the unblock post slides and drives the locking piece when the unblock face and keep away from the locking pothook, the unblock piece slides in the wire hole pore wall along the endwise slip, the spliced pole is kept away from go-between one side and is connected in the unblock piece, the unblock post is kept away from locking post lopsidedness and has been seted up go-between butt mounting groove cell wall in-process and supply the gliding power face of unblock piece, the unblock piece slides and promotes the unblock post and slides towards the locking post when power face.

Through adopting above-mentioned technical scheme, the speed that the safety rope was pulled out the casing when falling promotes in the twinkling of an eye for the safety rope drives go-between butt mounting groove cell wall, and the unblock slides in the power face soon in the butt in-process unblock, promotes the unblock post and slides in the unblock face, makes the locking post upwards drive the locking piece and keeps away from the locking pothook, is favorable to locking the pothook to break away from the draw-in groove.

Optionally, the buffering subassembly includes buffer board and power piece, the unblock piece symmetry sets up, the buffer board just articulates in the unblock piece with unblock piece one-to-one and keeps away from spliced pole one side in the unblock piece, the power piece sets up in the wire hole pore wall and is located the far dissociation of unblock post lock piece one side, the buffer board is kept away from safety rope one side and is provided with the promotion piece, the power piece slope is seted up and is supplied to promote the gliding push surface of piece, the promotion piece slides and drives buffer board butt safety rope when promoting.

Through adopting above-mentioned technical scheme, go-between butt mounting groove cell wall in-process unblock piece drives the buffer board motion for the power block slides on pushing away the face, promotes the buffer board towards the safety rope direction, cushions the safety rope when until with the safety rope butt.

Optionally, a friction layer is arranged on one side of the buffer plate facing the safety rope.

Through adopting above-mentioned technical scheme, increase buffer board promotes the buffering effect with the frictional force of safety rope contact surface.

Optionally, the elastic driving member is a driving spring, and the driving spring is sleeved on the connecting column and is located in the mounting groove.

By adopting the technical scheme, when the safety rope does not fall, the safety rope is pulled out of the shell at a low speed and at a discontinuous speed, the driving spring has certain reaction time to carry out elastic release, the position of the connecting ring is kept or the position of the connecting ring pulled by the safety rope before being pushed back to move, and a certain distance is formed between the connecting ring and the wall of the mounting groove before the speed of pulling the shell out of the safety rope is not increased.

In a second aspect, the application provides an anti-falling method, which adopts the following technical scheme:

an anti-falling method comprises the following steps:

firstly, hanging a fixed hook on a fixed object, and then hanging a safety hook on a safety belt bound on a human body; then, when falling, the pulling-out speed of the safety rope is instantly increased to drive the connecting ring to abut against the wall of the mounting groove, at the moment, the tensioning assembly pulls out the safety rope until the braking device brakes the safety rope, and meanwhile, the buffering assembly buffers the safety rope to reduce the speed of the safety rope separating from the shell; and finally, the tensioning assembly pulls the safety rope out of the shell completely and stops falling.

Through adopting above-mentioned technical scheme, the safety rope pulls out casing speed and promotes in the twinkling of an eye when taking place to fall, and the stretch-draw subassembly is a large amount of and pulls out safety rope from arresting gear in a large number and fast for arresting gear gets into the brake state in advance, and the safety rope that is pulled out in a large number in the casing simultaneously then receives the buffering when breaking away from the casing, reduces the speed when safety rope breaks away from the casing, reduces the safety rope and stops to pull out the pulling force that produces the human body when the casing.

In summary, the present application includes at least one of the following benefits:

1. when falling, the speed of the safety rope pulled out of the shell is instantly increased to drive the connecting ring to abut against the groove wall of the mounting groove, and at the moment, the tensioning assembly pulls the safety rope out of the braking device, so that the braking device enters a braking state in advance, and the safety rope pulled out of the braking device is buffered by the buffer assembly when being separated from the shell, so that the reaction time during falling is prolonged, and meanwhile, the pulling force generated to a human body when the safety rope stops being pulled out is greatly reduced;

2. the tensioning spring pushes the tensioning wheel, so that the tensioning wheel can pull the safety rope out of the braking device, the braking device can conveniently enter a braking state in advance, and meanwhile, when the pulled safety rope is separated from the shell, the tensioning wheel is driven to extrude the tensioning spring, so that the tensioning wheel can slow down the pulling speed of the safety rope.

Drawings

FIG. 1 is a schematic diagram of the external structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present application showing a pre-crash condition;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present application showing a pre-compression state of a tension spring;

FIG. 4 is a schematic cross-sectional view of an embodiment of the present application showing a crash condition;

fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Reference numerals are as follows: 1. a housing; 11. fixing the hook; 12. mounting grooves; 121. a chute; 13. a wire outlet hole; 131. connecting grooves; 132. unlocking the hole; 14. a locking post; 141. an unlocking surface; 15. a locking groove; 2. a braking device; 3. a safety cord; 31. a safety hook is arranged; 4. a connecting ring; 41. connecting columns; 42. a drive spring; 5. a tensioning assembly; 51. a tensioning wheel; 511. a slider; 512. a support pillar; 52. tensioning the spring; 6. a buffer assembly; 61. a buffer plate; 611. a pushing block; 612. a friction layer; 62. a power block; 621. pushing the surface; 7. a locking assembly; 71. a locking hook; 72. a locking block; 721. a card slot; 722. a power spring; 8. an unlocking assembly; 81. unlocking the column; 811. a power surface; 82. and (4) unlocking the block.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses safety hook structure. Referring to fig. 1 and 2, the fall arrester arrangement comprises a housing 1, a braking device 2 and a safety line 3. An installation groove 12 is formed in the shell 1, and the braking device 2 is installed in the installation groove 12. The shell 1 is of a two-half structure, and internal parts are fixed by welding after being installed. The safety rope 3 is wound in the braking device 2, and the safety rope 3 is pulled out of the braking device 2 when in use. The braking device 2 mainly comprises a ratchet wheel and a ratchet, adopts a differential braking principle, and brakes the safety rope 3 by matching the ratchet wheel and the ratchet when in use to limit the pulling-out of the safety rope 3. When the pulling speed of the safety rope 3 is lower than the braking speed, the safety rope 3 can be pulled out of the braking device 2, when falling occurs, the pulling speed of the safety rope 3 is rapidly increased, at the moment, the pulling speed of the safety rope 3 is higher than the braking speed of the braking device 2, and the braking device 2 enters a braking state. Since the braking device 2 is related to the related art, the embodiments of the present application are not described in detail.

Referring to fig. 2, the top of the housing 1 is fixedly connected with a fixed hook 11, and when the portable electronic device is used, the fixed hook 11 is hooked on a fixed object, so that the housing 1 is installed and fixed. The wire outlet 13 of intercommunication mounting groove 12 is seted up to one side that casing 1 kept away from fixed couple 11, and safety rope 3 that draws out in follow arresting gear 2 passes through wire outlet 13 roll-off mounting groove 12 to the position that safety rope 3 drawn out in following arresting gear 2 has great interval between 13 axis of wire outlet. The end part of the safety rope 3 is fixedly connected with a safety hook 31, and the safety hook 31 is hooked with a safety belt bound by a human body when in use, so that the falling protector in the pulling-out range of the safety rope 3 can protect a user, and the occurrence of safety accidents is reduced.

Referring to fig. 2, the outer circumferential side of the safety rope 3 is slidably sleeved with a connection ring 4, and a certain friction force is provided between the connection ring 4 and the safety rope 3. The outer periphery of the connection ring 4 is fixedly connected with a plurality of connection columns 41, the connection columns 41 are slidably connected to the housing 1 along the central axis direction of the wire outlet 13, and the connection columns 41 circumferentially surround the wire outlet 13 and are used for limiting the position of the connection ring 4.

Referring to fig. 2, the housing 1 is provided with an elastic driving member, the elastic driving member is a driving spring 42, the driving spring 42 is sleeved on the outer periphery of the connecting column 41, one end of the driving spring 42 abuts against the connecting ring 4, and the other end abuts against the groove wall of the mounting groove 12. When not taking place, safety rope 3 pulls out speed when slow or the interval is pulled out, and safety rope 3 applys the effort towards wire hole 13 to go-between 4, drives go-between 4 and moves towards wire hole 13 direction, and drive spring 42 elasticity release this moment cushions the effort that acts on go-between 4, and the effort that safety rope 3 acted on go-between 4 is not enough to make go-between 4 butt mounting groove 12 cell walls for keep certain interval between go-between 4 and the mounting groove 12 cell walls. When falling, the pulling speed of the safety rope 3 is increased sharply, and the acting force of the safety rope 3 on the connecting ring 4 is increased, so that the connecting ring 4 is driven by the safety rope 3 to move towards the outlet hole 13 until the connecting ring abuts against the groove wall of the mounting groove 12.

Referring to fig. 2 and 3, the housing 1 is provided with a tensioning assembly 5, when the safety rope 3 drives the connecting ring 4 to abut against the groove wall of the mounting groove 12, the tensioning assembly 5 rapidly pulls the safety rope 3 out of the braking device 2, so that the braking device 2 enters a braking state in advance.

Referring to fig. 3 and 4, the tension assembly 5 includes a tension wheel 51 and a tension spring 52, two opposite side walls of the installation groove 12 are respectively provided with a sliding groove 121, and an extending direction of the sliding groove 121 is perpendicular to a central axis of the outlet hole 13. The two ends of the tensioning wheel 51 are respectively fixedly connected with a sliding block 511, the sliding block 511 slides in the sliding groove 121, the tensioning springs 52 correspond to the sliding groove 121 one by one and are installed in the sliding groove 121, one end of each tensioning spring 52 abuts against the sliding block 511, and the other end abuts against the groove wall of the sliding groove 121. When the tensioning wheel 51 drives the sliding block 511 to slide in the sliding groove 121, so that the tensioning spring 52 enters a compressed state, the safety rope 3 is in sliding contact with one side of the tensioning wheel 51 away from the tensioning spring 52. When the tension spring 52 is elastically released, the tension spring 52 pushes the sliding block 511 to slide, so that the tension wheel 51 tensions the safety rope 3, the safety rope 3 is quickly pulled out from the braking device 2, and the braking device 2 enters a braking state in advance. Stretch-draw wheel 51 pulls out one section safety rope 3 in advance from arresting gear 2 and arranges in mounting groove 12, can shorten braking distance, reduce the user and drop the not enough probably emergence that leads to arresting gear 2 not to start of distance when the low latitude operation appearing, and stretch-draw wheel 51 still produces an ascending pulling force to safety rope 3 when pulling out safety rope 3 in advance, be favorable to slowing down tenesmus speed, promote stretch-draw wheel 51 reverse motion when the safety rope 3 that pulls out in advance is pulled out casing 1 simultaneously, stretch-draw spring 52 can continue to buffer tenesmus speed for safety rope 3 provides an effort this moment, provide more reaction time for the user during the tenesmus, make the user can make the reaction of reply tenesmus.

Referring to fig. 2 and 3, the housing 1 is provided with a locking assembly 7, and when the tension spring 52 enters a compressed state, the state of the tension wheel 51 can be maintained by locking the locking assembly 7. The locking assembly 7 comprises a locking hook 71 and a locking block 72, a supporting column 512 is fixedly connected to one side of the tensioning wheel 51 far away from the safety rope 3, the locking hook 71 is fixed at a position of the supporting column 512 close to one side of the braking device 2 and far away from the tensioning wheel 51, an accommodating groove is formed in the groove wall of the installation groove 12, and when the tensioning spring 52 enters a compression state, the supporting column 512 is inserted into the accommodating groove. The casing 1 is internally provided with a locking groove 15 which is communicated with the accommodating groove and is vertical to the extending direction, the casing 1 is provided with a locking column 14, and the locking column 14 slides in the locking groove 15. The locking block 72 is fixed at the end of the locking column 14, and one side of the locking block 72 facing away from the brake device 2 is provided with a locking slot 721 facing towards and aligned with the locking hook 71. The housing 1 is provided with a power spring 722, the power spring 722 is installed in the slot of the locking slot 15, one end of the power spring 722 abuts against one side of the locking block 72, which is back to the locking slot 721, and the other end abuts against one side of the locking slot 15, which is close to the braking device 2. When in use, the power spring 722 is elastically released to push the locking block 72 to slide towards the accommodating groove, so that the locking hook 71 is clamped into the clamping groove 721 to lock the tension spring 52.

Referring to fig. 4 and 5, the housing 1 is provided with an unlocking assembly 8, when the connecting ring 4 abuts against the groove wall of the mounting groove 12, the unlocking assembly 8 drives the locking block 72 to slide, so that the locking hook 71 is separated from the clamping groove 721, and the tension spring 52 is unlocked.

Referring to fig. 4 and 5, the unlocking assembly 8 includes an unlocking column 81 and an unlocking block 82, the peripheral wall of the outlet hole 13 is communicated with a connecting groove 131, the connecting grooves 131 correspond to the connecting columns 41 one to one, the connecting columns 41 slide into the connecting grooves 131, the unlocking block 82 is fixed at one end of the connecting columns 41 far away from the connecting ring 4, and the unlocking block 82 slides in the axial direction of the outlet hole 13 to the connecting groove 131. An unlocking hole 132 is formed in the housing 1, the unlocking hole 132 is communicated with the connecting groove 131 and the locking groove 15, and the unlocking column 81 is of a square column structure and slides in the unlocking hole 132. The side of the locking pin 14 close to the unlocking pin 81 is obliquely provided with an unlocking surface 141, the unlocking pin 81 slides on the unlocking surface 141, the side of the unlocking pin 81 far from the locking pin 14 is obliquely provided with a power surface 811, in an initial state, the locking hook 71 is clamped in the clamping slot 721, and at this time, the locking pin 14 pushes the unlocking pin 81 to slide towards the outlet hole 13 until the power surface 811 is located in the connecting slot 131. When the connection ring 4 abuts against the groove wall of the installation groove 12, the unlocking block 82 slides on the power surface 811, and pushes the unlocking column 81 towards the locking column 14, so that the unlocking column 81 slides on the unlocking surface 141, and pushes the locking column 14, so that the locking block 72 is far away from the locking hook 71, until the locking hook 71 is separated from the clamping groove 721.

Referring to fig. 4 and 5, the housing 1 is provided with the buffering component 6, when the connection ring 4 abuts against the groove wall of the installation groove 12, the buffering component 6 simultaneously buffers the safety rope 3, so that the speed of the safety rope 3 when the safety rope is separated from the housing 1 is reduced, the falling speed is reduced, and the impact force applied to a human body when the falling stops is favorably reduced.

Referring to fig. 4 and 5, the buffer assembly 6 includes a buffer plate 61 and a power block 62, the buffer plate 61 is an arc-shaped plate-shaped structure and corresponds to the unlocking blocks 82 one by one, the buffer plate 61 is hinged to the bottom of the unlocking blocks 82 and is close to the position of the wire outlet 13, and the arc-shaped convex side of the buffer plate 61 faces away from the wire outlet 13. The power block 62 is fixed to the connecting groove 131 and located on one side of the unlocking column 81 away from the unlocking block 82, a pushing block 611 is fixedly connected to one side of the buffer plate 61 opposite to the wire outlet 13, and a pushing surface 621 facing the power block 62 is obliquely arranged on the pushing block 611. When the unlocking block 82 slides on the power surface 811, the power block 62 slides on the pushing surface 621, so that the buffer plate 61 is turned over toward the safety rope 3 until the locking hook 71 is separated from the slot 721, and the buffer plate 61 abuts against the safety rope 3 to buffer the safety rope 3. The friction layer 612 is fixedly connected to the arc-shaped concave side of the buffer plate 61, and the friction layer 612 can be made of rubber, so that the friction force between the buffer plate 61 and the safety rope 3 can be increased, and the buffering effect of the safety rope 3 is improved. Safety rope 3 that pulls out in advance in the casing 1 is cushioned by buffer board 61, the very big speed that slows down to compare in other embodiments and directly set up the spring and cushion safety rope 3, buffer board 61 can continuously go on safety rope 3's buffering, produces the possibility of jolting sense when reducing safety rope 3 buffering.

The implementation principle of the safety catcher structure in the embodiment of the application is as follows:

in use the safety line 3 is slowly or intermittently pulled out of the housing 1, with the unlocking piece 82 spaced from the power surface 811. When the safety rope falls down, the safety rope 3 drives the connecting ring 4 to abut against the groove wall of the mounting groove 12, at the moment, the locking hook 71 is separated from the clamping groove 721, the tension spring 52 is elastically released, and the tension wheel 51 quickly pulls the safety rope 3 out of the braking device 2, so that the braking device 2 enters a braking state in advance; simultaneously buffer board 61 overturns to butt safety rope 3 towards 3 directions of safety rope, cushions safety rope 3 for by the buffering when being pulled out and being located safety rope 3 of mounting groove 12 breaks away from casing 1, reduce the speed of tenesmus, the impact force that the human body received when being favorable to reducing the tenesmus and stopping, and provide more reaction time of coping with the tenesmus for the user.

On the other hand, the application discloses an anti-falling method, which comprises the following steps:

firstly, a fixed hook 11 is hung on a fixed object, and then a safety hook 31 is hung on a safety belt bound on a human body; then, when the safety rope falls, the pulling speed of the safety rope 3 is instantly increased to drive the connecting ring 4 to abut against the groove wall of the mounting groove 12, at the moment, the tensioning assembly 5 pulls out the safety rope 3 until the braking device 2 brakes the safety rope 3, and meanwhile, the buffering assembly 6 buffers the safety rope 3, so that the speed of separating the safety rope 3 from the shell 1 is reduced; finally, the tension assembly 5 stops falling after the safety line 3 is pulled out of the housing 1 completely.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides a safety hook structure which characterized in that: the safety rope pulling device comprises a shell (1), a braking device (2) and a safety rope (3), wherein the shell (1) is provided with a fixed hook (11) connected with a fixed object, a mounting groove (12) is formed in the shell (1), the braking device (2) is arranged in the mounting groove (12), the safety rope (3) is wound on the braking device (2), the shell (1) is provided with a wire outlet hole (13) for pulling the safety rope (3) out of the shell (1), and the end part of the safety rope (3) is provided with a safety hook (31);

the safety rope (3) outer periphery side sliding sleeve is provided with a connecting ring (4) located in a mounting groove (12), the connecting ring (4) has friction force with the safety rope (3), the connecting ring (4) is provided with a connecting column (41) which slides in the shell (1) along the central axis direction of a wire outlet hole (13), the shell (1) is provided with an elastic driving piece which pushes the connecting ring (4) to be away from the wire outlet hole (13), the safety rope (3) drives the connecting ring (4) to slide to the groove wall of the butt mounting groove (12) towards the wire outlet hole (13) when falling, the shell (1) is provided with a tensioning assembly (5), the tensioning assembly (5) pulls out the safety rope (3) when the connecting ring (4) is abutted against the groove wall (12) and brakes the safety rope (3) by a brake device (2), and the shell (1) is provided with a buffer assembly (6) which buffers the safety rope (3) pulled out of the shell (1) when the abutted groove wall (4) is abutted against the groove wall (12);

the tensioning assembly (5) comprises a tensioning wheel (51) and a tensioning spring (52), wherein sliding blocks (511) are arranged at two ends of the tensioning wheel (51), sliding grooves (121) for the sliding blocks (511) to slide are formed in two opposite side groove walls of the installation groove (12) respectively, the tensioning spring (52) is installed on the sliding grooves (121), one end of the tensioning spring abuts against the sliding blocks (511), the other end of the tensioning spring abuts against the groove wall of the sliding grooves (121), the shell (1) is provided with a locking assembly (7) for locking the position of the tensioning wheel (51) when the tensioning spring (52) is compressed, the shell (1) is provided with an unlocking assembly (8) for unlocking the tensioning wheel (51) when the connecting ring (4) abuts against the groove wall of the installation groove (12), and the safety rope (3) is located on one side, far away from the spring, of the tensioning wheel (51) and is in sliding contact with the outer peripheral side of the tensioning wheel (51);

the locking assembly (7) comprises a locking hook (71) and a locking block (72), a supporting column (512) which slides in the shell (1) is arranged on one side, away from the safety rope (3), of the tensioning wheel (51), the locking hook (71) is arranged on one side, close to the fixed hook (11), of the supporting column (512), a locking column (14) which is perpendicular to the supporting column (512) is arranged in the shell (1) in a sliding mode, the locking block (72) is arranged on one side, facing the locking hook (71), of the locking column (14), the locking block (72) is provided with a clamping groove (721) into which the locking hook (71) is clamped, and the shell (1) is provided with a power spring (722) which drives the locking block (72) to slide towards the locking hook (71) in relative time of the locking hook (71) and the clamping groove (721);

the unlocking assembly (8) comprises an unlocking column (81) and an unlocking block (82), the unlocking column (81) slides in the shell (1) and is located between the wire outlet hole (13) and the locking column (14), one side, far away from the locking block (72), of the locking column (14) is obliquely provided with an unlocking surface (141) for sliding the unlocking column (81), the unlocking column (81) drives the locking block (72) to be far away from the locking hook (71) when sliding on the unlocking surface (141), the unlocking block (82) axially slides on the wall of the wire outlet hole (13), one side, far away from the connecting ring (4), of the connecting column (41) is connected to the unlocking block (82), one side, far away from the locking column (14), of the unlocking column (81) is obliquely provided with a power surface (811) for sliding the unlocking block (82) in the process of abutting against the groove wall of the mounting groove (12) by the connecting ring (4), and the unlocking block (82) pushes the unlocking column (81) to slide towards the locking column (14) when sliding on the power surface (811);

buffer unit (6) include buffer board (61) and power piece (62), unblock piece (82) symmetry sets up, buffer board (61) and unblock piece (82) one-to-one just hinge and keep away from spliced pole (41) one side in unblock piece (82), power piece (62) set up in wire hole (13) pore wall and lie in unblock post (81) and keep away from unblock piece (82) one side, buffer board (61) are kept away from safety rope (3) one side and are provided with and promote piece (611), power piece (62) slope is seted up and is supplied to promote gliding promotion face (621) of piece (611), it slides and drive buffer board (61) butt safety rope (3) when promoting face (621) to promote piece (611).

2. The fall arrester structure of claim 1, wherein: the tensioning wheel (51) is fixedly connected with the sliding block (511).

3. The fall arrester structure of claim 1, wherein: and a friction layer (612) is arranged on one side, facing the safety rope (3), of the buffer plate (61).

4. The fall arrester structure of claim 1, wherein: the elastic driving piece is a driving spring (42), and the connecting column (41) is sleeved with the driving spring (42) and is located in the mounting groove (12).

5. A fall arrest method using a fall arrester structure according to any one of claims 1 to 4, comprising the steps of:

firstly, a fixed hook (11) is hung on a fixed object, and then a safety hook (31) is hung on a safety belt bound on a human body; then, when falling, the pulling speed of the safety rope (3) is instantly increased to drive the connecting ring (4) to abut against the groove wall of the mounting groove (12), the tensioning assembly (5) pulls out the safety rope (3) until the braking device (2) brakes the safety rope (3), and meanwhile the buffering assembly (6) buffers the safety rope (3) to reduce the speed of the safety rope (3) separating from the shell (1); and finally, the tension assembly (5) stops falling after pulling out the safety rope (3) and completely separating from the shell (1).

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