CN208770705U - Ramp-down device and escape knapsack - Google Patents

Abstract

The utility model provides a kind of ramp-down device and knapsack of escaping, and is related to the technical field of high building escape equipment.Ramp-down device provided by the utility model includes: body, sheave, centrifugal wheel, centrifugation slide post, the concave-convex gentle drop drawstring of collision annular solid；Centrifugal wheel is relative to body around own axis；Bumps collision annular solid is fixed on body；Multiple lug bosses are provided on the inside of bumps collision annular solid；Being centrifuged slide post can be mobile radially to bumps collision annular solid relative to centrifugal wheel；Lug boss can push centrifugation slide post mobile to the center of centrifugal wheel；Sheave can be relative to body around own axis；Slow drop drawstring is wound in sheave, and sheave is fixed in one end, and the other end extends to outside body；Sheave and centrifugal wheel are sequentially connected.By ramp-down device provided by the utility model, alleviates contact water present in slow drop equipment in the prior art or oil easily leads to the slow performance that drops and declines more technical problem.

Description

Ramp-down device and escape knapsack

Technical field

The utility model relates to the technical fields of high building escape equipment, carry on the back more particularly, to a kind of ramp-down device and escape Packet.

Background technique

When the eminence in the buildings such as high building, when the emergencies such as cause danger, often need to flee to ground in time, with Mitigate and is injured caused by danger.In some cases, such as when fire, the channel of building is difficult to pass through, and escapes to the ground for people From increasing obstacle.It in this case, is a kind of one of feasible way by window.It is fled to the ground from window, needs to borrow Slow drop equipment is helped to improve the safety of escape to reduce decrease speed.

Slow drop equipment in the prior art is generally slowed down using the principle of frictional resistance；It is set when water or oil enter When standby middle, coefficient of friction can be reduced, lead to slow drop reduced performance, influence safety in utilization.

The information disclosed in the background technology section is intended only to deepen the reason to the general background technology of the utility model Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form Technology.

Utility model content

The purpose of this utility model is to provide a kind of ramp-down device and escape knapsacks, are set with alleviating to delay to drop in the prior art Standby existing contact water or oil easily lead to slow drop performance and decline more, the lower technical problem of safety in utilization.

The utility model first aspect provides a kind of ramp-down device, ramp-down device provided by the utility model include: body, Sheave, centrifugal wheel, centrifugation slide post, the concave-convex gentle drop drawstring of collision annular solid；Centrifugal wheel is rotationally connected with body, can be opposite In body around own axis；Bumps collision annular solid is sheathed on outside centrifugal wheel, and is fixed on body；Bumps collision annular solid Inside be provided with multiple lug bosses, multiple lug bosses are spaced apart around the circumference of centrifugal wheel；Slide post sliding is centrifuged to connect It is connected to centrifugal wheel, it can be relative to centrifugal wheel radially to the medial movement of concave-convex collision annular solid, to collide annular solid with bumps Collision；Lug boss can push centrifugation slide post mobile to the center of centrifugal wheel；Sheave is rotationally connected with body, can be relative to machine Body is around own axis；Drawstring winding accommodating cavity is provided with outside sheave；Slow drop drawstring is wound in sheave, and one end is solid Due to sheave, the other end is extended to outside body；Sheave and centrifugal wheel are sequentially connected；Relative to body, slow drop is pulled out Drawstring can drive sheave and centrifugal wheel to rotate.

Further, centrifugal wheel is provided with multiple radial slides, and the opening of radial slide collides annular solid towards bumps Inside；Multiple radial slides are spaced apart around the circumference of centrifugal wheel；Centrifugation slide post is slideably positioned in radial slide.

Further, concave-convex collision annular solid includes multiple collision columns and circumferential position limiting structure, and multiple collision columns are around centrifugation The circumference of wheel is distributed；Circumferential position limiting structure and collision column cooperation, to limit axis of the collision column with respect to body around centrifugal wheel Circumferential movement.

Further, the arc groove with the outer wall cooperation of collision column is provided on body, collision column is embedded in arc groove.

Further, ramp-down device provided by the utility model further includes speed booster driving mechanism, and sheave is passed by speedup Motivation structure and centrifugal wheel are sequentially connected, so that the revolving speed of centrifugal wheel is greater than the revolving speed of sheave.

Further, speed booster driving mechanism includes epicyclic gearsets.

Further, epicyclic gearsets include central gear, planetary gear and outer gear ring, and outer gear ring is sheathed on central gear Outside, planetary gear is engaged with central gear and outer gear ring respectively；Outer gear ring is fixed on body；Sheave is connect with planetary gear, is used for Planetary gear is driven to rotate around the axis of central gear；Central gear and centrifugal wheel are sequentially connected, for driving centrifugal wheel around itself Axis rotation.

Further, centrifugal wheel and epicyclic gearsets are respectively arranged at the two sides of sheave.

Further, ramp-down device provided by the utility model further includes the first drawstring directive wheel and the second drawstring guiding Wheel, the first drawstring directive wheel and the second drawstring directive wheel are rotationally connected with body respectively；The slow drawstring that drops is from the first drawstring directive wheel And second pass through between drawstring directive wheel.

Further, ramp-down device provided by the utility model further includes harness plate, and harness plate is connected to the outside of body.

The utility model second aspect provides a kind of escape knapsack, and escape knapsack provided by the utility model includes: knapsack Ontology and above-mentioned ramp-down device；Ramp-down device includes harness plate, and harness plate is connected to the outside of body；Ramp-down device is set to In knapsack ontology, and harness plate is fixedly connected with the inner wall of knapsack ontology；Slow drop drawstring is pierced by the top of knapsack ontology.

Ramp-down device provided by the utility model and escape knapsack, are related to the technical field of high building escape equipment.This is practical The ramp-down device of novel offer includes: body, sheave, centrifugal wheel, is centrifuged slide post, the gentle drop drawing of concave-convex collision annular solid Rope；Centrifugal wheel is rotationally connected with body, can be relative to body around own axis；Bumps collision annular solid is sheathed on centrifugal wheel Outside, and it is fixed on body；Multiple lug bosses, axis of multiple lug bosses around centrifugal wheel are provided on the inside of bumps collision annular solid Circumferentially-spaced；Centrifugation slide post is slidably connected to centrifugal wheel, radially can collide annular solid to bumps relative to centrifugal wheel Medial movement, with bumps collision annular solid collision；Lug boss can push centrifugation slide post mobile to the center of centrifugal wheel；It leads Rope sheave is rotationally connected with body, can be relative to body around own axis；Drawstring winding accommodating cavity is provided with outside sheave；It is slow Drop drawstring is wound in sheave, and sheave is fixed in one end, and the other end extends to outside body；Sheave and centrifugal wheel are driven Connection；Relative to body, slow drop drawstring is pulled out, sheave and centrifugal wheel can be driven to rotate.It is provided using the utility model Ramp-down device, land from high to lower, slow drop drawstring be located at extra-organismal one end and is fixed on eminence, the personnel of landing or Person's article is connect with body.

Personnel or article decline under the effect of gravity together with body, drive sheave and centrifugal wheel rotation.Centrifugation Wheel drives centrifugal slip to move axis of the column relative to body around centrifugal wheel and rotates；Be centrifuged slide post under the action of the centrifugal, relative to from Heart wheel moves outward, collides the inside of concave-convex collision annular solid.

Bumps collision annular solid is fixed on body, and centrifugal wheel is rotated relative to body, to make to be centrifuged slide post and centrifugation Wheel collides annular solid together, relative to bumps, and the axis around centrifugal wheel rotates.In this way, centrifugation slide post multiple lug bosses it Between move；Lug boss pushes centrifugation slide post mobile to the center of centrifugal wheel.

In this way, centrifugal wheel rotation during, centrifugation slide post radially reciprocated relative to centrifugal wheel, and with it is recessed Convex collision annular solid collides.It is centrifuged slide post and concave-convex collision annular solid collision, mechanical energy can be consumed, is turning for centrifugal wheel Dynamic offer resistance reduces the decrease speed of ramp-down device to slow down the revolving speed of centrifugal wheel and sheave.

Centrifugation wheel speed is faster, and the frequency for being centrifuged the reciprocating motion of slide post is higher, and the resistance for being subject to centrifugal wheel is bigger, It is further increased to limit the revolving speed of centrifugal wheel, makes ramp-down device to decline compared with low velocity.

The resistance of ramp-down device reduction of speed provided by the utility model independent of frictional force, influenced by water and oil it is smaller, It alleviates contact water present in slow drop equipment in the prior art or oil easily leads to slow drop performance and declines more, safety in utilization Lower technical problem.

Possessed advantage is identical compared with the existing technology with above-mentioned ramp-down device for the escape knapsack, herein no longer It repeats.

To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, be cited below particularly the utility model compared with Good embodiment, and cooperate appended attached drawing, it is described below in detail.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the cross-sectional view at the first visual angle of ramp-down device provided by the embodiment of the utility model；

Fig. 2 be Fig. 1 in A-A to cross-sectional view；

Fig. 3 is the structural schematic diagram of arc groove in ramp-down device provided by the embodiment of the utility model；

Fig. 4 is the structural schematic diagram of epicyclic gearsets in ramp-down device provided by the embodiment of the utility model；

Fig. 5 is the structural schematic diagram of escape knapsack provided by the embodiment of the utility model；

Fig. 6 is the cross-sectional view of escape knapsack provided by the embodiment of the utility model.

Icon: 01- body；02- wirerope；03- sheave；04- centrifugal wheel；041- radial slide；042- centrifugation sliding Column；05- collides column；051- arc groove；06- epicyclic gearsets；061- outer gear ring；062- planetary gear；The first drawstring of 071- guiding Wheel；072- the second drawstring directive wheel；08- harness plate；09- central axis；10- knapsack ontology；11- knapsack annulus.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

The utility model embodiment first aspect provides a kind of ramp-down device, referring to Fig.1 and 2, the utility model is real The ramp-down device for applying example offer includes: body 01, sheave 03, centrifugal wheel 04, centrifugation slide post 042, concave-convex collision annular solid Gentle drop drawstring；Centrifugal wheel 04 is rotationally connected with body 01, can be relative to body 01 around own axis；Bumps collision annular Body is sheathed on outside centrifugal wheel 04, and is fixed on body 01；Multiple lug bosses are provided on the inside of bumps collision annular solid, it is multiple convex The portion of rising is spaced apart around the circumference of centrifugal wheel 04；Centrifugation slide post 042 is slidably connected to centrifugal wheel 04, can be relative to centrifugation Wheel 04 is radially to the medial movement of concave-convex collision annular solid, to collide annular solid collision with bumps；Lug boss can push centrifugation Slide post 042 is mobile to the center of centrifugal wheel 04；Sheave 03 is rotationally connected with body 01, can be relative to body 01 around itself axis Line rotation；Drawstring winding accommodating cavity is provided with outside sheave 03；Slow drop drawstring is wound in sheave 03, and one end is fixed on and is led Rope sheave 03, the other end extend to outside body 01；Sheave 03 and centrifugal wheel 04 are sequentially connected；Relative to body 01, pull out Slow drop drawstring, can drive sheave 03 and centrifugal wheel 04 to rotate.

Specifically, the part that slow drop drawstring is wound in sheave 03 can be contained in drawstring winding accommodating cavity, to make conductor rope More slow drop drawstring can be wound outside wheel 03, improves ramp-down device provided by the embodiment of the utility model height applicatory.

Specifically, using ramp-down device provided by the embodiment of the utility model, land from high to lower, by slow drop drawstring Eminence is fixed in one end outside body 01, and the personnel of landing or article are connect with body 01.

Personnel or article together with body 01 decline under the effect of gravity, drive sheave 03 and 04 turn of centrifugal wheel It is dynamic.Centrifugal wheel 04 drives axis of the centrifugation slide post 042 relative to body 01 around centrifugal wheel 04 to rotate；Centrifugation slide post 042 exists It under centrifugal action, is moved outward relative to centrifugal wheel 04, collides the inside of concave-convex collision annular solid.

Bumps collision annular solid is fixed on body 01, and centrifugal wheel 04 is rotated relative to body 01, to make to be centrifuged slide post 042 and centrifugal wheel 04 together, relative to bumps collide annular solid, around centrifugal wheel 04 axis rotate.In this way, centrifugation slide post 042 moves between multiple lug bosses；Lug boss pushes centrifugation slide post 042 mobile to the center of centrifugal wheel 04.

In this way, centrifugation slide post 042 is relative to the radially reciprocal fortune of centrifugal wheel 04 during centrifugal wheel 04 rotates It is dynamic, and collide with bumps collision annular solid.It is centrifuged slide post 042 and concave-convex collision annular solid collision, mechanical energy can be consumed, Rotation for centrifugal wheel 04 provides resistance, to slow down the revolving speed of centrifugal wheel 04 and sheave 03, reduces the decline of ramp-down device Speed.

04 revolving speed of centrifugal wheel is faster, and the frequency for being centrifuged the reciprocating motion of slide post 042 is higher, the resistance for being subject to centrifugal wheel 04 Power is bigger, so that the revolving speed for limiting centrifugal wheel 04 further increases, makes ramp-down device to decline compared with low velocity.

The resistance of ramp-down device reduction of speed provided by the embodiment of the utility model is influenced independent of frictional force by water and oil It is smaller.

Building is fixed in one end of ramp-down device provided by the embodiment of the utility model, slow drop drawstring, can reduce slow drop The external structures such as drawstring and building are worn, and the risk of fracture and card resistance is reduced, and improve safety in utilization.

It in some embodiments, further include hook, hook is connected to one end that slow drop drawstring is located at outside body 01.

In some embodiments, delay drop drawstring and use wirerope 02.

Further, centrifugal wheel 04 is provided with multiple radial slides 041, and the opening of radial slide 041 is collided towards concave-convex The inside of annular solid；Multiple radial slides 041 are spaced apart around the circumference of centrifugal wheel 04；The centrifugation sliding of slide post 042 is set It is placed in radial slide 041.

Specifically, radial slide 041 for be centrifuged slide post 042 movement guiding is provided, make be centrifuged slide post 042 relative to The movement of centrifugal wheel 04 is more steady.

Further, concave-convex collision annular solid includes multiple collision columns 05 and circumferential direction position limiting structure, multiple collision columns 05 around The circumference of centrifugal wheel 04 is distributed；Circumferential position limiting structure and collision column 05 cooperate, with limitation collision column 05 with respect to body 01 around The axis circumferential movement of centrifugal wheel 04.

Specifically, referring to figure 2., collision column 05 forms lug boss, two neighboring collision column close to the side of centrifugal wheel 04 Concave part is formed between 05.

It collides column 05 and uses cylindrical body, collision column 05 can reduce centrifugation sliding relative to body 01 around own axis Friction between column 042 and collision column 05, reduces abrasion.

Further, the arc groove 051 with the outer wall cooperation of collision column 05 is provided on body 01, collision column 05 is embedded in arc Shape slot 051.

Specifically, referring to figure 3., there are four arc groove 051, four arc grooves 051 are circumferentially uniform for setting on body 01 It is spaced apart.Four collision columns 05 are embedded in arc groove 051, can be in arc groove 051 around own axis.

Circumferentially adjacent distributions, two neighboring collision column 05 mutually abut multiple collision columns 05, to prevent to collide 05 edge of column Circumference is mobile.The outside of collision column 05 is abutted with body 01, and collision column 05 is prevented to be moved radially outwards.

Further, ramp-down device provided by the embodiment of the utility model further includes speed booster driving mechanism, and sheave 03 is logical It crosses speed booster driving mechanism and centrifugal wheel 04 is sequentially connected, so that the revolving speed of centrifugal wheel 04 is greater than the revolving speed of sheave 03.

Specifically, by speed booster driving mechanism, make ramp-down device provided by the embodiment of the utility model compared with low velocity Decline, when the revolving speed of sheave 03 is lower, centrifugal wheel 04 can reach higher rotation speed, and centrifugation slide post 042 can be past with upper frequency Multiple movement, to provide larger resistance, reduces the decrease speed of ramp-down device with bumps collision annular solid collision.

Further, speed booster driving mechanism includes epicyclic gearsets 06.

Specifically, epicyclic gearsets 06 can provide biggish transmission ratio.

Further, referring to figure 4., epicyclic gearsets 06 include central gear, planetary gear 062 and outer gear ring 061, external tooth Circle 061 is sheathed on outside central gear, and planetary gear 062 is engaged with central gear and outer gear ring 061 respectively；Outer gear ring 061 is fixed on Body 01；Sheave 03 is connect with planetary gear 062, for driving planetary gear 062 to rotate around the axis of central gear；Central gear It is sequentially connected with centrifugal wheel 04, for driving centrifugal wheel 04 around own axis.

Specifically, including central axis 09, central axis 09 is rotationally connected with body 01, and passes through from sheave 03；Conductor rope Wheel 03 is rotatablely connected by bearing and central axis 09.Centrifugal wheel 04 is connected to one end of central axis 09；During central gear is connected to The other end of mandrel 09.Planetary gear 062 is rotationally connected with sheave 03 by shaft, and planetary gear 062 can be relative to sheave 03 Axis around the shaft rotates；Sheave 03 can drive planetary gear 062 to rotate around the axis of central gear.

In some embodiments, epicyclic gearsets 06 include three planetary gears 062, and three planetary gears 062 are circumferentially uniform Distribution, and it is rotationally connected with sheave 03.

Further, centrifugal wheel 04 and epicyclic gearsets 06 are respectively arranged at the two sides of sheave 03.

Specifically, the quality of centrifugal wheel 04 and epicyclic gearsets 06 is larger, can make the distribution of weight of 03 two sides of sheave more Add equilibrium, improves the stability of movement.

Further, ramp-down device provided by the embodiment of the utility model further includes the first drawstring directive wheel 071 and second Drawstring directive wheel 072, the first drawstring directive wheel 071 and the second drawstring directive wheel 072 are rotationally connected with body 01 respectively；Slow drop is drawn Rope passes through between the first drawstring directive wheel 071 and the second drawstring directive wheel 072.

Specifically, the first drawstring directive wheel 071 and the second drawstring directive wheel 072 can be the motion guide of slow drop drawstring, make Slow drop drawstring movement is more smooth.

Further, ramp-down device provided by the embodiment of the utility model further includes harness plate 08, and harness plate 08 is connected to The outside of body 01.

Specifically, personnel to be landed or article may connect to harness plate 08, consequently facilitating using.

The utility model second aspect provides a kind of escape knapsack, referring to figure 5. and Fig. 6, provided by the utility model to escape Raw knapsack includes: knapsack ontology 10 and above-mentioned ramp-down device；Ramp-down device includes harness plate 08, and harness plate 08 is connected to body Outside；Ramp-down device is set in knapsack ontology 10, and harness plate 08 is fixedly connected with the inner wall of knapsack ontology 10；Slow drop Drawstring is pierced by from the top of knapsack ontology 10.

Specifically, knapsack ontology 10 is provided with knapsack annulus 11.Harness plate 08 is connected to knapsack ontology 10 and knapsack ring is arranged With 11 side.

Finally, it should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment What is stressed is all differences from other embodiments, and same and similar part cross-reference is between each embodiment It can；The above various embodiments is only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned each implementation The utility model is described in detail in example, those skilled in the art should understand that: it still can be to aforementioned Technical solution documented by each embodiment is modified, or equivalent substitution of some or all of the technical features； In the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.And these modifications, replacement Or combination, the scope of the technical solutions of the embodiments of the utility model that it does not separate the essence of the corresponding technical solution.

Claims (10)

1. a kind of ramp-down device characterized by comprising body, sheave, centrifugal wheel, centrifugation slide post, concave-convex collision annular The gentle drop drawstring of body；

The centrifugal wheel is rotationally connected with the body, can be relative to the body around own axis；

The concave-convex collision annular solid is sheathed on outside the centrifugal wheel, and is fixed on the body；The concave-convex collision annular solid Inside be provided with multiple lug bosses, multiple lug bosses are spaced apart around the circumference of the centrifugal wheel；

The centrifugation slide post is slidably connected to the centrifugal wheel, can be relative to the centrifugal wheel radially to the concave-convex collision The medial movement of annular solid, to be collided with the concave-convex collision annular solid；The lug boss can push the centrifugation slide post to The center of the centrifugal wheel is mobile；

The sheave is rotationally connected with the body, can be relative to the body around own axis；Outside the sheave It is provided with drawstring winding accommodating cavity；The slow drop drawstring is wound in the sheave, and the sheave is fixed in one end, separately One end extends to outside the body；

The sheave and the centrifugal wheel are sequentially connected；Relative to the body, the slow drop drawstring is pulled out, can be driven The sheave and centrifugal wheel rotation.

2. ramp-down device according to claim 1, which is characterized in that the centrifugal wheel is provided with multiple radial slides, institute The opening for stating radial slide collides the inside of annular solid towards the bumps；Axis of multiple radial slides around the centrifugal wheel Line circumferentially-spaced；

The centrifugation slide post is slideably positioned in the radial slide.

3. ramp-down device according to claim 1, which is characterized in that the concave-convex collision annular solid includes multiple collision columns With circumferential position limiting structure, multiple collision columns are distributed around the circumference of the centrifugal wheel；

The circumferential direction position limiting structure and the collision column cooperate, to limit the relatively described body of collision column around the centrifugal wheel Axis circumferential movement.

4. ramp-down device according to claim 3, which is characterized in that be provided on the body outer with the collision column The arc groove of wall cooperation, the collision column are embedded in the arc groove.

5. ramp-down device according to claim 1, which is characterized in that the ramp-down device further includes speed booster driving mechanism, The sheave is sequentially connected by the speed booster driving mechanism and the centrifugal wheel, so that the revolving speed of the centrifugal wheel is greater than institute State the revolving speed of sheave.

6. ramp-down device according to claim 5, which is characterized in that the speed booster driving mechanism includes epicyclic gearsets.

7. ramp-down device according to claim 6, which is characterized in that the epicyclic gearsets include central gear, planet Wheel and outer gear ring, the outer gear ring are sheathed on outside the central gear, the planetary gear respectively with the central gear and described Outer gear ring engagement；

The outer gear ring is fixed on the body；

The sheave is connect with the planetary gear, for driving the planetary gear to rotate around the axis of the central gear；

The central gear and the centrifugal wheel are sequentially connected, for driving the centrifugal wheel around own axis.

8. ramp-down device according to claim 7, which is characterized in that the centrifugal wheel and the epicyclic gearsets are set respectively It is placed in the two sides of the sheave.

9. ramp-down device according to claim 1, which is characterized in that the ramp-down device further includes the first drawstring directive wheel With the second drawstring directive wheel, the first drawstring directive wheel and the second drawstring directive wheel are rotationally connected with the machine respectively Body；The slow drop drawstring passes through between the first drawstring directive wheel and the second drawstring directive wheel.

10. a kind of escape knapsack characterized by comprising the described in any item slow drops dresses of knapsack ontology and such as claim 1-9 It sets；

The ramp-down device further includes harness plate, and the harness plate is connected to the outside of the body；

The ramp-down device is set in the knapsack ontology, and the fixed company of the inner wall of the harness plate and the knapsack ontology It connects；

The slow drop drawstring is pierced by the top of the knapsack ontology.