CN202537425U

CN202537425U - Descender

Info

Publication number: CN202537425U
Application number: CN2012201497840U
Authority: CN
Inventors: 何少敦
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2012-11-21
Anticipated expiration: 2022-04-11

Abstract

The utility model discloses a descender. In order to solve the problem of inconvenience in use of a bar type descender, the utility model provides a bar type descender. The bar type descender comprises a core shaft and an outer sleeve, wherein an outer sleeve sliding rope mouth is arranged on the outer sleeve, a press rope ring is also arranged on the outer sleeve and can vertically slide under the control of a human hand, when the press rope ring is positioned at a sliding rope mouth position, a wrap rope on the core shaft is extruded, the friction force of the wrap rope is increased, a human body stops falling, and when the press rope ring upwards moves and is separated from the sliding rope mouth position, the friction force of the wrap rope is reduced, and the human body falls. The descender provided by the utility model can be used as a hanging tool for construction such as building exterior wall cleaning, decoration and the like, can serve as a hanging tool for building firefighting lift-saving and rescue or high-altitude rescue and operation, and also can be used as special equipment for personnel airborne landing.

Description

A kind of drop device

Technical field

The utility model relates to a kind of drop device, relate in particular to a kind of with human body self weight be gravity, drop device through hand-guided.

Background technology

In " the single suspender technical specification of security of Cleaning for Outer Wall of Building operation seat board formula ", the kind of drop device comprises now: bar type, multi-plate, 8 word ring types and unload button.When adopting 8 word ring type drop devices or unloading the button drop device, operating personnel must up mention free-ended rope when landing; Gravity is very big when rope length is very long, sometimes even the problem of motionless rope occurs putting forward, brings very big trouble for construction and operation.In addition, unload the button drop device, do not advocated use at present owing to there are some safety problems.

Though bar type is very safe, in actual use, operating personnel's operation when descending is also very inconvenient; During use, operating personnel can lock drop device with the working rope free end in downslide rope mouth, working rope is untied from the rope mouth that glides then can be realized descending, but when untiing, should note holding working rope downwards to prevent unexpected decline; Such operation has brought very big inconvenience to the user.Therefore, even also there is inconvenient problem in 8 word ring type drop devices in operation, people still are ready to select it.

The utility model content

Have inconvenient problem with use in order to solve the bar type drop device, the utility model proposes a kind of bar type drop device, is combined by mandrel and outer sleeve; The sliding rope mouth of outer sleeve is set on the sleeve outside; The pressure becket bridle also is set on the sleeve outside, presses becket bridle under people's hand control, can do upper and lower sliding, when pressing becket bridle to be in sliding rope mouth position, the wiring on the mandrel is pushed; Wiring frictional force increases, and human body stops to descend; When pressing becket bridle to move up to leave when gliding rope mouthful position wiring no longer compacted, wiring frictional force reduces, and human body descends.The drop device that the utility model proposes; Suspension attachment when not only can be used as construction such as skin cleaning, finishing; Can also be as the building ' s fire lifesaving, speedily carry out rescue work or suspension attachment when high altitude rescue, operation the special equipment the when personnel that also can be used as are airborne.

The technical scheme of the utility model technical solution problem is that a kind of drop device is combined by mandrel and outer sleeve; Said mandrel is provided with upper end, lower end; The mandrel lower end is provided with down the suspension hook mouth, and upper end is provided with and slides the rope mouth, lower end is provided with the rope mouth that glides, and on the termination, also is provided with keeper; Said outer sleeve is provided with running-on, fixing port; Working rope is fixed on eminence, is wrapped in through the sliding rope mouth of going up of mandrel upper end and forms wiring on the mandrel, mouthful hang down to lower from running-on through the downslide rope of lower end then through stiff end, and outer sleeve is socketed on the upper end, lower end of mandrel and fixes through engaging between said keeper and the fixing port, and human body is fixed on the following suspension hook mouth of mandrel; It is characterized in that; Also be provided with outer sleeve outside on the sleeve and slide the rope mouth, the sliding rope mouth of said outer sleeve aligns with the downslide rope mouth of lower end, also is provided with the pressure becket bridle of band valve outside on the sleeve; When pressing becket bridle to place the sliding rope of outer sleeve mouthful position, press becket bridle that working rope is pressed on the rope mouthful of gliding.

When on drop device, twining working rope, can twine working rope according to human weight.When suspending in midair, human body is fixed on the following suspension hook mouth of drop device, will presses becket bridle to place outer sleeve to slide a rope mouthful position through hand-guided, press this moment becket bridle that working rope is pressed on the downslide rope mouth of lower end, wiring frictional force increases, and human body is suspended in the air; When needs descend, will press becket bridle to move up through hand-guided away from the sliding rope of outer sleeve mouthful position, press becket bridle no longer working rope to be compressed this moment, and wiring frictional force reduces, and human body descends under the effect of gravity.

The preferred version of the utility model is: also be provided with guide rod and stage clip outside on the sleeve, stage clip is installed on the guide rod, presses becket bridle to do upper and lower moving along guide rod, and stage clip will press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position.

The preferred version of the utility model is: also be provided with guide rod and stage clip outside on the sleeve; Stage clip is installed on the guide rod; Press becket bridle to do upper and lower moving along guide rod, stage clip will press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position, also be provided with rope seat, stay cord outside on the sleeve; Stay cord is connected fixing with the pressure becket bridle through the rope seat, staff presses becket bridle upper and lower mobile through stay cord control.

The preferred version of the utility model is: also be provided with turning set; The pressure becket bridle has the face of cylinder with the turning set socket, and turning set is socketed in presses the becket bridle outside, and sleeve is provided with the slip locating piece outside; Press the face of cylinder of becket bridle to be provided with the first slip forward block; Turning set is provided with the slip locating slot and the first oblique slip advances groove, and said slip locating piece is embedded in slip locating slot the inside limit rotation cover and axially moves, and the said first slip forward block is embedded in the first oblique slip and advances the groove the inside; On turning set, also be provided with swing handle; When the staff swing handle, drive turning set and rotate, the first oblique slip advanced groove to promote to press becket bridle to do upper and lower moving through the first slip forward block when turning set rotated, when loosing one's grip; Under the effect of elastic force, stage clip will be pressed becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position and played self-locking action.

The preferred version of the utility model is: on turning set, also be provided with the second oblique slip and advance groove; Also be provided with wedge with the mutual socket of turning set; Turning set is socketed in the wedge outside, and wedge is provided with the second slip forward block, and the said second slip forward block is embedded in the second oblique slip and advances the groove the inside; When staff with wedge toward drop-down when wedge is moved down; The second slip forward block on the wedge advances the moving turning set of troughed belt to rotate through the second oblique slip, and the first oblique slip advanced groove to promote to press becket bridle to do upper and lower moving through the first slip forward block when turning set rotated, when loosing one's grip; Under the effect of elastic force, stage clip will be pressed becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position and played self-locking action.

The preferred version of the utility model is: on wedge, also be provided with second fixture; Also be provided with and hold sleeve; Hold sleeve and be provided with second fixing port; The said jacket casing of holding is connected on wedge outside and is fixed on the wedge through second fixing port, second fixture, holds sleeve and has the position that supplies people's grasped, holds sleeve wedge when drop-down and moves down together when the people holds.

The preferred version of the utility model is: also be provided with guide rod outside on the sleeve, press becket bridle to do upper and lower moving along guide rod, also be provided with turning set; The pressure becket bridle has the face of cylinder with the turning set socket, and turning set is socketed in presses the becket bridle outside, and sleeve is provided with the slip locating piece outside; Press the face of cylinder of becket bridle to be provided with the first slip forward block, turning set is provided with the slip locating slot and the first oblique slip advances groove, and said slip locating piece is embedded in slip locating slot the inside limit rotation cover and axially moves; The said first slip forward block is embedded in the first oblique slip and advances the groove the inside; On turning set, also be provided with swing handle, be provided with torsion spring between sleeve and the turning set outside, under the effect of torsion spring; Press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position; When the staff swing handle, drive turning set and rotate, the first oblique slip advanced groove to promote to press becket bridle to do upper and lower moving through the first slip forward block when turning set rotated, when loosing one's grip; Under the effect of torsion spring, press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position and play self-locking action.

The preferred version of the utility model is: also be provided with control and press becket bridle to do upper and lower mobile rocker assembly along guide rod; Said rocker assembly mainly comprises rocking bar, connects rocking bar and connecting rod, bearing and first fulcrum, second fulcrum, the 3rd fulcrum of pressing becket bridle; Said bearing is fixed on the outer sleeve; Said connecting rod is connected through first fulcrum with rocking bar; Said connecting rod is connected through second fulcrum with pressing becket bridle, and said rocking bar is connected through the 3rd fulcrum with bearing, and rocking bar is that fulcrum shakes with the 3rd fulcrum.

The beneficial effect of the utility model is, the user in use, the only with hand operation presses becket bridle to make its upper and lower moving, human body just can be realized suspention or decline like a cork, and is simple to operate, safe and convenient.

Description of drawings

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 are for having the structural representation of bar type drop device now; Wherein Fig. 1, Fig. 2, Fig. 7 are the planar structure sketch map, and Fig. 3, Fig. 4, Fig. 5 are the partial structurtes sketch map, and Fig. 6 is an exterior perspective view, the wiring figure of Fig. 2, Fig. 7 working rope when using.

Fig. 8, Fig. 9, Figure 10, Figure 11 are the structural representation of first embodiment of the utility model; Wherein Fig. 8 is the external structure sketch map, and Fig. 9, Figure 10, Figure 11 are the internal structure sketch map.

Figure 12, Figure 13 are the partial structurtes sketch map of second embodiment of the utility model.

Figure 14, Figure 15 are the partial structurtes sketch map of the 3rd embodiment of the utility model.

Figure 16, Figure 17, Figure 18, Figure 19 figure, Figure 20 are the partial structurtes sketch map of the 4th embodiment of the utility model.

Figure 21, Figure 22, Figure 23, Figure 24, Figure 25 are the partial structurtes sketch map of the 5th embodiment of the utility model.

Figure 26, Figure 27 are the partial structurtes sketch map of the 6th embodiment of the utility model.

Figure 28, Figure 29 are the partial structurtes sketch map of the 7th embodiment of the utility model.

Figure 30, Figure 31 are the partial structurtes sketch map of the 8th embodiment of the utility model.

Among the figure:

1. glide rope mouthful of mandrel, 1.1a upper end, the last sliding rope of 1.1a1 mouthful, 1.1a2 first keeper, 1.1a2.1 keeper inclined-plane, 1.1b lower end, 1.1b1, the 1.2a mouth of hook of hanging oneself, suspension hook mouth under the 1.2b;

2 outer sleeves, 2.1 running-ons, 2.2 first fixing ports, 2.3 sliding rope mouths, 2.4 press becket bridles; 2.4.1 press the becket bridle valve, the 2.4.2 face of cylinder, the 2.4.3 first slip forward block, 2.5.1 first guide rod, 2.5.2 second guide rod, 2.6.1 first stage clip, 2.6.2 second stage clip; 2.6.3 torsion spring, 2.7 rope seats, 2.8 stay cords, 2.9 turning sets; 2.9.1 swing handle, 2.9.2A slip locating slot, the 2.9.2B first oblique slip advance groove, the 2.9.2C second oblique slip to advance groove, 2.10 slip locating pieces, 2.11 wedges, the 2.11.1 second slip forward block; 2.11.2 second keeper, 2.12 hold sleeve, 2.12.1 second fixing port

3. working rope, 3.1 working rope stiff ends, 3.2 wirings, 3.3 working rope free ends;

4. human body;

5. rocker assembly, 5.1 rocking bars, 5.2 connecting rods, 5.3 bearings, 5.4a first fulcrum, 5.4b second fulcrum, 5.4c the 3rd fulcrum.

The specific embodiment

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 are for having the structural representation of bar type drop device now; Wherein Fig. 1, Fig. 2, Fig. 7 are the plane structural representation, and Fig. 3, Fig. 4, Fig. 5 are the partial structurtes sketch map, and Fig. 6 is an exterior perspective view, the wiring figure of Fig. 2, Fig. 7 working rope when using.Show among the figure; Existing bar type drop device; Combine by mandrel 1 and outer sleeve 2; Said mandrel 1 is provided with upper end 1.1a, lower end 1.1b; Mandrel 1 two ends are provided with the mouth of hook 1.2a that hangs oneself, following suspension hook mouth 1.2b, are respectively arranged with a sliding rope mouthful 1.1a1, mouthful 1.1b1 that restricts that glides on upper end 1.1a, the lower end 1.1b, on upper end 1.1a, also are provided with the first keeper 1.1a2 of outer sleeve 2; Said outer sleeve 2 is provided with running-on 2.1, first fixing port 2.2; Working rope 3 is fixed on eminence, gets into to be wrapped in through the sliding rope mouthful 1.1a1 of going up of mandrel 1 upper end 1.1a and form wiring 3.2 on the mandrel 1 and hang down to lower from the downslide rope mouthful 1.1b1 of lower end 1.1b then through stiff end 3.1, and outer sleeve 2 is socketed on the upper and lower termination of mandrel and through the matching and fixing between the first keeper 1.1a2 and first fixing port 2.2, and human body 4 is fixed on the following suspension hook mouth 1.2b of mandrel 1.

Fig. 2 shows among the figure that for a kind of wiring figure of existing bar type drop device rope is fixed on eminence through stiff end 3.1, directly gets into a upward sliding rope mouthful 1.1a1 then and is wrapped on the mandrel 1.Fig. 7 shows among the figure that for the another kind of wiring figure of existing bar type drop device rope is fixed on eminence through stiff end 3.1, passes then that the sliding mouth 1.1a1 that restricts is wrapped on the mandrel 1 again hang oneself mouth of hook 1.2a, enterings in.The rope woolding method of Fig. 2 is very convenient, because working rope does not pass the mouth of hook 1.2a but directly get into and go up a sliding rope mouthful 1.1a1 of hanging oneself, so drop device can twine working rope on any position of working rope, brings convenience for speedily carry out rescue work lifesaving or work high above the ground.The winding method of Fig. 7 causes certain trouble to wiring, because another termination of rope must be passed from the mouth of hook 1.2a that hangs oneself.

Show among the figure that in the prior art, the mandrel 1 of bar type drop device is integrally cast with upper end 1.1a, lower end 1.1b or is weldingly fixed on.Its operation principle is to utilize to be wrapped in the decrease speed that frictional force that the wiring 3.2 on the drop device mandrel 1 produced is controlled drop device; Can select the number of turns of wiring 3.2 according to the size of human body 4 weight; Put outer sleeve 2 again after on mandrel 1, twining working rope, can suspend in midair carry out fire-fighting life-saving, speedily carry out rescue work, Cleaning for Outer Wall of Building or transport work such as object from top to bottom.During use; Operating personnel can lock drop device with working rope free end 3.3 in the rope mouthful 1.1b1 that glides; Working rope free end 3.3 untied from the rope mouthful 1.1b1 that glides then can realize descending, but when untiing, should note holding working rope downwards to prevent unexpected decline; Such operation has brought very big inconvenience to the user.

Fig. 8, Fig. 9, Figure 10, Figure 11 are the structural representation of first embodiment of the utility model; Wherein Fig. 8 is the external structure sketch map, and Fig. 9, Figure 10, Figure 11 are the internal structure sketch map.Show among the figure; In the present embodiment; Drop device is combined by mandrel 1 and outer sleeve 2; Said mandrel 1 is provided with upper end 1.1a, lower end 1.1b, and mandrel 1 lower end is provided with down suspension hook mouth 1.2b, and upper end 1.1a is provided with sliding rope mouthful 1.1a1; Lower end 1.1b is provided with the rope mouthful 1.1b1 that glides; On the 1.1a of termination, also be provided with the first keeper 1.1a2, said outer sleeve 2 is provided with running-on 2.1, first fixing port 2.2, working rope 3 through stiff end 3.1 be fixed on eminence, through the sliding rope mouthful 1.1a1 of going up of mandrel 1 upper end 1.1a get into be wrapped in form wiring 3.2 on the mandrel 1, the downslide rope mouthful 1.1b1 through lower end hangs down to lower from running-on 2.1 then; The upper end 1.1a, lower end 1.1b that outer sleeve 2 is socketed in mandrel 1 goes up and fixes through engaging between the said first keeper 1.1a2 and first fixing port 2.2, and human body 4 is fixed on the following suspension hook mouth 1.2b of mandrel 1;

Different with prior art is; In the present embodiment, also be provided with the sliding rope of outer sleeve mouthfuls 2.3 outside on the sleeve 2, the sliding rope of said outer sleeve mouthfuls 2.3 aligns with the downslide rope mouthful 1.1b1 of lower end 1.1b; Also be provided with on the sleeve 2 outside and press becket bridle 2.4; Press becket bridle 2.4 to have valve 2.4.1, when pressing becket bridle 2.4 to place the sliding rope mouth of outer sleeve 2.3 positions, press becket bridle 2.4 that working rope is pressed on the rope mouthful 1.1b1 that glides.

When on drop device, twining working rope, can twine working rope according to human weight, when suspending in midair; Human body is fixed on the following suspension hook mouth of drop device; To press becket bridle 2.4 to place sliding mouthful 2.3 positions of restricting of outer sleeve through hand-guided, and when pressing becket bridle 2.4 to place the sliding rope mouth of outer sleeve 2.3 positions, press becket bridle 2.4 working rope to be pressed on the downslide rope mouthful 1.1b1 of lower end; This moment, wiring 3.2 frictional force increased, and human body is suspended in the air; When needs descend, will press becket bridle 2.4 to move up through hand-guided away from the sliding rope of outer sleeve mouthful 2.3 positions, press becket bridle no longer working rope to be compressed this moment, and wiring 3.2 frictional force reduce, and human body descends under the effect of gravity.

Figure 12, Figure 13 are the partial structurtes sketch map of second embodiment of the utility model.Different with first embodiment is; In the present embodiment, also be provided with the first guide rod 2.5.1, the second guide rod 2.5.2, the first stage clip 2.6.1 outside on the sleeve 2, the second stage clip 2.6.2; The first stage clip 2.6.1; The second stage clip 2.6.2 is installed in respectively on the first guide rod 2.5.1, the second guide rod 2.5.2, presses becket bridle 2.4 to do upper and lower moving along guide rod, and stage clip will press becket bridle 2.4 to be pressed on the sliding rope of outer sleeve mouthful 2.3 positions.In this example, stage clip has auto-lock function, when needs descend; To press becket bridle 2.4 to move up through hand-guided away from the sliding rope of outer sleeve mouthful 2.3 positions; Press becket bridle no longer working rope to be compressed this moment, and wiring 3.2 frictional force reduce, and human body descends under the effect of gravity; When loosing one's grip, press becket bridle 2.4 under the effect of elastic force, to move down, recover to make human body stop to descend to compressing of working rope 3.

Figure 14, Figure 15 are the partial structurtes sketch map of the 3rd embodiment of the utility model.Different with second embodiment is, in the present embodiment, also is provided with rope seat 2.7, stay cord 2.8 outside on the sleeve 2, and with to press becket bridle 2.4 to be connected fixing, do upper and lower mobile through stay cord 2.8 control pressure becket bridles 2.4 by staff through rope seat 2.7 for stay cord 2.8.

Figure 16, Figure 17, Figure 18, Figure 19 figure, Figure 20 are the partial structurtes sketch map of the 4th embodiment of the utility model.Different with second embodiment is; In the present embodiment; Also be provided with turning set 2.9, pressure becket bridle 2.4 has the face of cylinder 2.4.2 with the turning set socket, and turning set 2.9 is socketed in presses becket bridle 2.4 outsides; Sleeve 2 is provided with slip locating piece 2.10 outside; Press the face of cylinder 2.4.2 of becket bridle 2.4 to be provided with the first slip forward block 2.4.3, turning set 9 is provided with slip locating slot 2.9.2A and the first oblique slip advances groove 2.9.2B, and said slip locating piece 2.10 is embedded in slip locating slot 2.9.2A the inside limit rotation cover 2.9 and moves axially; The said first oblique slip forward block 2.4.3 is embedded in the first oblique slip and advances groove 2.9.2B the inside; On turning set 2.9, also be provided with swing handle 2.9.1, when staff swing handle 2.9.1, drive turning set 2.9 and rotate, the first oblique slip advanced groove 2.9.2B to promote to press becket bridle 2.4 to do upper and lower moving through the first slip forward block 2.4.3 when turning set 2.9 rotated; When loosing one's grip, under the effect of elastic force, stage clip will press becket bridle 2.4 to be pressed on the sliding rope of outer sleeve mouthful 2.3 positions.

Figure 21, Figure 22, Figure 23, Figure 24, Figure 25 are the partial structurtes sketch map of the 5th embodiment of the utility model.Different with the 4th embodiment is in the present embodiment, on turning set, also to be provided with the second oblique slip and to advance groove 2.9.2C; Also be provided with wedge 2.11 with the mutual socket of turning set; Turning set 2.9 is socketed in wedge 2.11 outsides; Wedge 2.11 is provided with the second slip forward block 2.11.1; The said second slip forward block 2.11.1 is embedded in the second oblique slip and advances groove 2.9.2C the inside; When staff with wedge 2.11 toward drop-down when wedge is moved down, the second slip forward block 2.11.1 on the wedge advances groove 2.9.2C to drive turning set 2.9 through the second oblique slip and rotates, the first oblique slip advanced groove 2.9.2B to promote to press becket bridle 2.4 to do upper and lower moving through the first slip forward block 2.4.3 when turning set 2.9 rotated; When loosing one's grip, under the effect of elastic force, stage clip will press becket bridle 2.4 to be pressed on the sliding rope of outer sleeve mouthful 2.3 positions.

Figure 26, Figure 27 are the partial structurtes sketch map of the 6th embodiment of the utility model.Different with the 5th embodiment is; In the present embodiment; On wedge 2.11, also be provided with the second fixture 2.11.2; Also be provided with and hold sleeve 2.12, hold sleeve 2.12 and be provided with the second fixing port 2.12.1, the said sleeve 2.12 of holding is socketed in wedge 2.11 outsides and is fixed on the wedge 2.11 through the second fixing port 2.12.1, the second fixture 2.11.2; Hold sleeve 2.12 and have the position that supplies people's grasped, hold sleeve 2.12 wedge 2.11 when drop-down and move down together when the people holds.

Figure 28, Figure 29 are the partial structurtes sketch map of the 7th embodiment of the utility model.Different with the 4th embodiment is, in the present embodiment, is provided with torsion spring 2.6.3 between sleeve 2 and the turning set 2.9 outside, under the effect of torsion spring 2.6.3, presses becket bridle 2.4 to be pressed on the sliding rope of outer sleeve mouthful 2.3 positions; When staff swing handle 2.9.1, drive turning set 2.9 and rotate, the first oblique slip advanced groove 2.9.2B to promote to press becket bridle 2.4 to do upper and lower moving through the first slip forward block 2.4.3 when turning set 2.9 rotated; When loosing one's grip, under the effect of torsion spring 2.6.3, press becket bridle 2.4 to be pressed on the sliding rope of outer sleeve mouthful 2.3 positions.

Figure 30, Figure 31 are the partial structurtes sketch map of the 8th embodiment of the utility model.Different with second embodiment is; In the present embodiment; Also be provided with control and press becket bridle 2.4 to do upper and lower mobile rocker assembly 5 along guide rod, said rocker assembly 5 mainly comprises rocking bar 5.1, connects rocking bar 5.1 and connecting rod 5.2, bearing 5.3 and the first fulcrum 5.4a, the second fulcrum 5.4b, the 3rd fulcrum 5.4c that press becket bridle 2.4, and said bearing 5.3 is fixed on the outer sleeve 2; Said connecting rod 5.2 is connected through the first fulcrum 5.4a with rocking bar 5.1; Said connecting rod 5.2 is connected through the second fulcrum 5.4b with pressing becket bridle 2.4, and said rocking bar 5.1 is connected through the 3rd fulcrum 5.4c with bearing 5.3, and rocking bar 5.1 is that fulcrum shakes with the 3rd fulcrum 5.4c.

Claims

1. a drop device is combined by mandrel and outer sleeve, and said mandrel is provided with upper end, lower end; The mandrel lower end is provided with down the suspension hook mouth, and upper end is provided with and slides the rope mouth, lower end is provided with the rope mouth that glides, and on the termination, also is provided with keeper; Said outer sleeve is provided with running-on, fixing port; Working rope is fixed on eminence, is wrapped in through the sliding rope mouth of going up of mandrel upper end and forms wiring on the mandrel, mouthful hang down to lower from running-on through the downslide rope of lower end then through stiff end, and outer sleeve is socketed on the upper end, lower end of mandrel and fixes through engaging between said keeper and the fixing port, and human body is fixed on the following suspension hook mouth of mandrel; It is characterized in that; Also be provided with outer sleeve outside on the sleeve and slide the rope mouth, the sliding rope mouth of said outer sleeve aligns with the downslide rope mouth of lower end, also is provided with the pressure becket bridle of band valve outside on the sleeve; When pressing becket bridle to place the sliding rope of outer sleeve mouthful position, press becket bridle that working rope is pressed on the rope mouthful of gliding.

2. drop device according to claim 1 is characterized in that, also is provided with guide rod and stage clip outside on the sleeve, and stage clip is installed on the guide rod, presses becket bridle to do upper and lower moving along guide rod, and stage clip will press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position.

3. drop device according to claim 2 is characterized in that, also is provided with restrict seat, stay cord outside on the sleeve, and stay cord is connected fixing with the pressure becket bridle through the rope seat, and staff presses becket bridle upper and lower mobile through stay cord control.

4. drop device according to claim 2 is characterized in that, also is provided with turning set; The pressure becket bridle has the face of cylinder with the turning set socket, and turning set is socketed in presses the becket bridle outside, and sleeve is provided with the slip locating piece outside; Press the face of cylinder of becket bridle to be provided with the first slip forward block; Turning set is provided with the slip locating slot and the first oblique slip advances groove, and said slip locating piece is embedded in slip locating slot the inside limit rotation cover and axially moves, and the said first slip forward block is embedded in the first oblique slip and advances the groove the inside; On turning set, also be provided with swing handle; When the staff swing handle, drive turning set and rotate, the first oblique slip advanced groove to promote to press becket bridle to do upper and lower moving through the first slip forward block when turning set rotated, when loosing one's grip; Under the effect of elastic force, stage clip will be pressed becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position and played self-locking action.

5. drop device according to claim 2 is characterized in that, on turning set, also is provided with the second oblique slip and advances groove; Also be provided with wedge with the mutual socket of turning set; Turning set is socketed in the wedge outside, and wedge is provided with the second slip forward block, and the said second slip forward block is embedded in the second oblique slip and advances the groove the inside; When staff with wedge toward drop-down when wedge is moved down; The second slip forward block on the wedge advances the moving turning set of troughed belt to rotate through the second oblique slip, and the first oblique slip advanced groove to promote to press becket bridle to do upper and lower moving through the first slip forward block when turning set rotated, when loosing one's grip; Under the effect of elastic force, stage clip will be pressed becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position and played self-locking action.

6. drop device according to claim 5; It is characterized in that, on wedge, also be provided with second fixture, also be provided with and hold sleeve; Hold sleeve and be provided with second fixing port; The said jacket casing of holding is connected on wedge outside and is fixed on the wedge through second fixing port, second fixture, holds sleeve and has the position that supplies people's grasped, holds sleeve wedge when drop-down and moves down together when the people holds.

7. drop device according to claim 1 is characterized in that, also is provided with guide rod outside on the sleeve; Press becket bridle to do upper and lower moving along guide rod, also be provided with turning set, the pressure becket bridle has the face of cylinder with the turning set socket; Turning set is socketed in presses the becket bridle outside, and sleeve is provided with the slip locating piece outside, presses the face of cylinder of becket bridle to be provided with the first slip forward block; Turning set is provided with the slip locating slot and the first oblique slip advances groove, and said slip locating piece is embedded in slip locating slot the inside limit rotation cover and axially moves, and the said first slip forward block is embedded in the first oblique slip and advances the groove the inside; On turning set, also be provided with swing handle, be provided with torsion spring between sleeve and the turning set outside, under the effect of torsion spring; Press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position; When the staff swing handle, drive turning set and rotate, the first oblique slip advanced groove to promote to press becket bridle to do upper and lower moving through the first slip forward block when turning set rotated, when loosing one's grip; Under the effect of torsion spring, press becket bridle to be pressed on the sliding rope of the outer sleeve mouthful position and play self-locking action.

8. drop device according to claim 2; It is characterized in that; Also be provided with control and press becket bridle to do upper and lower mobile rocker assembly along guide rod, said rocker assembly mainly comprises rocking bar, connects rocking bar and connecting rod, bearing and first fulcrum, second fulcrum, the 3rd fulcrum of pressing becket bridle, and said bearing is fixed on the outer sleeve; Said connecting rod is connected through first fulcrum with rocking bar; Said connecting rod is connected through second fulcrum with pressing becket bridle, and said rocking bar is connected through the 3rd fulcrum with bearing, and rocking bar is that fulcrum shakes with the 3rd fulcrum.