CN103656884A

CN103656884A - Slow descending protector

Info

Publication number: CN103656884A
Application number: CN201310652442.XA
Authority: CN
Inventors: 李国栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-09
Filing date: 2013-12-09
Publication date: 2014-03-26
Also published as: CN103920252A; CN103920252B

Abstract

A slow descending protector is a protection device used for making people or objects descend from the high in a speed limiting mode. The slow descending protector is mainly composed of a slow descending protector body, a rotating wheel, metal balls, a slow descending rope, a fastening connecting piece and the like. The rotating wheel provided with the metal balls is installed in a circular hole in the slow descending protector body. A plurality of circular arc grooves are formed in the circular hole of the slow descending protector body. One end of the slow descending rope is fixed to a rotating shaft of the rotating wheel, and is rotated to the left or rotated to the right to surround the rotating shaft of the rotating wheel. The other end of the slow descending rope is connected with the slow descending people or objects. When the slow descending protector works, the slow descending rope drives the rotating wheel to rotate to drive the metal balls to conduct circular movement, the metal balls generate centrifugal force which increases along with the increase of the moving speed of the metal balls, and then the rotating wheel acquires backward torque which increases along with the increase of the speed. When the backward torque is equal to torque, generated by the slow descending people or objects, of the rotating wheel, the descending speed of the descending people or objects does not increase any longer, and therefore the goals of speed limiting and slow descending are achieved.

Description

The slow protector that falls

Technical field:

The present invention relates to a kind of device that people or object are declined by eminence speed limit.As the high-rise slow descent of security against fire is escaped body device, safety guard of rock climbing etc. in sports.

Background technology:

The existing device that people or object are declined by eminence speed limit, the technology adopting is varied, but all has complex structure, and manufacturing cost is high, uses inconvenience or the poor defect of security reliability.

Summary of the invention:

Technical problem to be solved by this invention is: for the deficiencies in the prior art, provide a kind of slow protector that falls.

The technical solution adopted in the present invention is: the slow protector that falls falls protector body by delaying, swiveling wheel, metal ball, end cap, the slow formations such as rope and fastening connection piece of falling.Slow one end that falls rope is fixed in the rotating shaft of swiveling wheel, and left-handed or dextrorotation is looped around in rotating shaft, the other end by jockey with delay the people or the object that fall and be connected.Jockey can be hook or hook seat etc.Several circular holes are radially evenly set on the circumference of swiveling wheel, a metal ball is set in each hole.Swiveling wheel is arranged on slow falling in the circular hole of protector body, and several arc grooves are radially evenly set on the circumference of this circular hole.When the slow like this people who falls or object decline, the slow moving swiveling wheel of rope band that falls rotates; swiveling wheel drives metal ball to take swiveling wheel axis and circles as the center of circle; metal ball produces centrifugal force N, makes metal ball and the slow interior wall friction that falls protector body circular hole form frictional resistance F.When metal ball moves to slow falling in the arc groove of protector body, metal ball is clashed into arc groove and is made groove surfaces produce reaction force P to metal ball.Frictional resistance F and reaction force P increase with metal ball centrifugal force N.Square being directly proportional of the size of centrifugal force N of metal ball and the movement velocity of metal ball.Frictional resistance F and reaction force P produce opposing torque to the rotation of swiveling wheel.Along with the slow people who falls or the increase of object decrease speed, opposing torque increases simultaneously, and when opposing torque equates with the torque of the slow people who falls or object generation, the people of decline or object decrease speed are no longer accelerated, thereby reach, delay the object of falling with speed limit.

Slow metal ball of falling protector is rotatably the Circularhole diameter of swiveling wheel and the diameter that the degree of depth is greater than metal ball with moving axially in the circular hole of swiveling wheel.

The slow metal ball radius that falls protector is less than the slow radius that falls protector body arc groove, otherwise metal ball can not contact arc groove bottom, groove is reduced to the decelerating effect of metal ball.The slow degree of depth of falling protector body arc groove is less than the radius of metal ball in addition, on the contrary metal ball in the gentle effect of falling protector body arc groove of swiveling wheel, issue and be conigenous lock, metal ball can not be rotated, and causes slowly to fall protector and can not work.

Due to the slow metal ball arc groove reaction force P to metal ball within delaying the arc groove that falls protector body that falls protector; the opposing torque producing is greater than metal ball and delays and fall the opposing torque that protector body circular-hole internal-wall frictional resistance f produces; when the quantity of arc groove and the quantity of metal ball equate; metal ball littlely when large while causing opposing torque makes the slow protector that falls can not smooth working by arrive arc groove and leave groove simultaneously simultaneously, so slow arc groove quantity of falling protector body should be more than the quantity of metal ball.

Slow fall protector by the difference of instructions for use, can slowly fall restricts makes one group and also can make two groups, when making two groups, on the rotating shaft diverse location that two groups are arranged on respectively swiveling wheel.And one group of left-handed being looped around in rotating shaft, another group dextrorotation is looped around in rotating shaft.Due to the technological requirement that swiveling wheel is installed and manufactured, swiveling wheel is combined by two or more parts.Use two groups slow fall rope and use one group of slow rope that falls by people or object by eminence speed limit decline function, also to have the slow rope that falls with people or the synchronous function rising of object except possessing.For example: the rock climbing of sports, sportsman is connected to one group of slow one end that falls rope, when sportsman climbs from bottom to top, the slow rope that falls of another group is delaying under the effect of falling rope and connector deadweight, swiveling wheel is rotated, thereby drive is arranged on sportsman, the slow rope that falls with it upwards tightens up with sportsman.Guarantee sportsman in whole rock climbing in protected state.

Accompanying drawing explanation

Figure of description 1 is one embodiment of the invention structure cut-away view

Figure of description 2 is another embodiment of the present invention structure cut-away views

The specific embodiment

Referring to Figure of description 1, be one embodiment of the invention structure cut-away view, this slow protector that falls is mainly by slow protector body (1), swiveling wheel (2), metal ball (3), end cap (4), one group of slow rope (5) and the fastening connection piece formation of falling of falling.Slow fall rope (5) one end and be fixed in the rotating shaft of swiveling wheel (2), and left-handed being looped around in rotating shaft, people or the object falling delayed in slow other end connection of falling rope (5).7 circular holes are radially evenly set on the circumference of swiveling wheel (2); a steel ball (3) is set in each hole; swiveling wheel (2) is arranged on slow falling in the circular hole of protector body (1), and 8 arc grooves (6) are radially evenly set on the circumference of this circular hole.

Referring to Figure of description 2, are another embodiment of the present invention structure cut-away views, this is slow falls protector with above-described embodiment difference is: in the rotating shaft of swiveling wheel (2), set up one group and delayed and fall rope (5) dextrorotation and be looped around in rotating shaft.

Claims

1. the slow protector that falls is mainly by the slow protector body (1) that falls, swiveling wheel (2), metal ball (3), end cap (4), delay and fall rope (5) and be fastenedly connected formation, it is characterized in that slow one end that falls rope (5) is fixed in the rotating shaft of swiveling wheel (2), and left-handed or dextrorotation is looped around in rotating shaft, the other end connects slow people or the object falling, several circular holes are radially evenly set on the circumference of swiveling wheel (2), a metal ball (3) is set in each hole, swiveling wheel (2) is arranged on slow falling in the circular hole of protector body (1), several arc grooves (6) are radially evenly set on the circumference of this circular hole.

2. slowly as claimed in claim 1 fall protector and it is characterized in that: metal ball (3) is rotatable and move axially in the circular hole of swiveling wheel.

3. slowly as claimed in claim 1 fall protector and it is characterized in that: the radius of metal ball (3) is less than the slow radius that falls protector body (1) arc groove (6), and the degree of depth of arc groove (6) is less than the radius of metal ball (3).

4. slowly as claimed in claim 1 fall protector and it is characterized in that: the quantity of the slow arc groove (6) that falls protector body (1) is more than the quantity of metal ball (3).

5. slowly as claimed in claim 1 fall protector and it is characterized in that: slowly fall rope (5) and can make one group; also can make two groups; when making two groups; on the rotating shaft diverse location that two groups are arranged on respectively swiveling wheel (3); and one group of left-handed being looped around in rotating shaft, other one group of dextrorotation is looped around in rotating shaft.