CN201082319Y

CN201082319Y - Safety slow-falling device for high-altitude operation

Info

Publication number: CN201082319Y
Application number: CNU2007200146386U
Authority: CN
Inventors: 王喜亭; 孙学雁; 曹辉; 王赫莹; 郭辉; 杨晓辉
Original assignee: Shenyang University of Technology
Current assignee: Shenyang Yuanda Compressor Co Ltd
Priority date: 2007-09-21
Filing date: 2007-09-21
Publication date: 2008-07-09
Anticipated expiration: 2017-09-21

Abstract

The utility model relates to a safe and slow descending device for overhead operation, which comprises a track and a slow descending body. The track is provided with a track plane, and the slow descending body is sleeved on the track. The slow descending body comprises a housing, cams, camshafts, rocker arms and roller wheels. The horizontal section of the housing is in the form of a rectangular pipe with an opening at left end. Both sides of the housing opening are made into holding blocks which hold the track, the slanting slideway grooves are opened accordingly on the front and back sides of the housing, the camshaft is positioned in the slideway groove and can slide or roll up and down in the groove, and the camshaft is provided with cams which is rolling on the track plane. Two sides of the camshaft are extended to the outside of the housing and then are hinged with the rocker arm. The right side of the rocker arm is made into an annular ring to be connected with the free-falling body. When persons or objects accidentally fall or descend as required, the cams shall roll continuously on the track plane under the action of gravity and the camshaft shall move up and down in the slideway groove so as to make the slow descending body descend fast and slowly alternately and finally slowly fall down with the action of the friction so as to guarantee the safety.

Description

Work high above the ground safety slow descending device

Technical field

The utility model relates to a kind of rail mounted work high above the ground safety slow descending device, especially a kind of work high above the ground personnel fall arrest and the safe slow descending device that falls automatically.

Background technology

At present, in industries such as electric power, communication, building, fire-fighting, all relate to work high above the ground, the conditions and environment of work high above the ground is poor: the operating personnel will wear safety belt, on the safety belt be the lockset of safeguard protection, lockset is enclosed within on the track with ladder, carry the instrument and the apparatus of constant weight, walk up and down or to step on easy step stool aerial operation very difficult at vertical single ladder, and the process that operating personnel's descending stair is stepped on is more difficult, because descending more difficult, add in work high above the ground to have consumed a large amount of muscle power than up at vertical single ladder; The lockset of present known work high above the ground personnel's safeguard protection has two classes, one class utilizes own wt to make lockset in orbit locked when the work high above the ground personnel slip when falling, stop and glide, the shortcoming of this lockset is that the operating personnel is hung in the air, be unable even to protect or fend for oneself, other staff are also quite difficult to its rescue; Another kind of is the handle that lockset has control locking track, when slipping when falling, the work high above the ground personnel control lockset locking track by self control crank, adjust gliding speed, the shortcoming of this lockset is that the slip operating personnel that falls is panic, may shock by electricity again, baked wheaten cake, sudden illness etc., cause incompetence and control ability, uncontrollable at all handle, accident is unavoidable; Come therefrom, work high above the ground personnel's casualty accident happens occasionally, and brings great loss for country, enterprise, accident people.

Summary of the invention

In order to overcome the deficiency of existing work high above the ground safety guard; the utility model provides a kind of work high above the ground safety slow descending device; the maximum characteristics of this mechanism are can control the operating personnel automatically when falling and slowly fall when the work high above the ground personnel slip, and also can play the effect of safeguard protection to the object of aerial whereabouts.

The technical scheme that its technical problem that solves the utility model adopts is:comprising that track is gentle falls body, and the main truncation surface of track is the T font, vertically is fixed on the building, and orbital plane comprises track interarea and the secondary face of track; Slow fall body and be enclosed within on the track, slow fall body and comprise housing, cam; Rocking arm and roller; Work high above the ground safety slow descending device be before and after symmetrical bodies; The horizontal section of housing is the rectangular tubular of left end opening; The shell nozzle two ends are made and embraced a piece; Embrace track by embracing a piece; The upper end of embracing piece is provided with contact block and contact with the secondary face of track; The lower end of embracing piece is equipped with roller; Roller rolls on the secondary face of track, and correspondence has the slide groove of inclination on the two sides, front and back of housing, and slide groove contains camshaft; Camshaft can slide up and down in slide groove or roll; Cam is installed on the camshaft, and cam contacts with the track interarea and rolls on the track interarea, the camshaft both sides extend to outside the housing and rocking arm hinged; Camshaft also is the rotating shaft of rocking arm, and the camshaft two ends are located by manufactured head; Rocking arm is enclosed within on the housing, and its side view is a V-arrangement, and the right-hand member of rocking arm is made suspension ring circlewise, in order to being connected with freely falling body; The left end opening of rocking arm, and be provided with the hook be pressed on the left surface of housing; People or object by safety-belt fastening on suspension ring; When people or object fall when maybe needing to fall accidentally; Action of Gravity Field lower lift ring at people or object presses down; The drive rocking arm falls; Rocking arm drives camshaft and falls together with cam; And the effect rocking arm is scratched camshaft and is turned clockwise; Under the effect of lever force; The contact block that the hook of rocking arm left end promotes the holding block upper end of housing leans against on the track minor face; At this moment; Rocking arm drives camshaft and glides in the slide groove that tilts; Rocking arm is always given power to orbital direction of camshaft; Make cam near the track interarea and finally be close to the track interarea; To realize that cam rolls at the track interarea; Above-mentioned contact block leans against on the track minor face; Give people from whereabouts or object one resistance; But this resistance can not stop people or object to glide; After this; Cam rolls downwards on the track interarea; When both camshaft was apart from track interarea closest approach when camshaft is rolled to the minimum point of chute; Cam continues to roll downwards on the track interarea; But camshaft begins to move in chute; Because track interarea and chute strengthen the rotary resistance of cam to the extruding force increase of cam gradually; Thereby; Reduce gradually gliding speed; When both camshaft was apart from track interarea solstics when camshaft is rolled to the peak of chute; Cam continues to roll downwards on the track interarea; But camshaft begins to move down in chute; Because track interarea and chute reduce the rotary resistance of cam to the extruding force minimizing of cam gradually; Thereby; Increase gradually gliding speed; Like this; Under the Action of Gravity Field of people or object; Along with cam constantly rolls on the track interarea; Camshaft moves up and down in chute; Make the decrease speed of slow down body fast; Slowly; Hurry up; Slowly hocket; Because the effect of frictional force finally makes slow down body slowly fall, guarantee safety.

The beneficial effects of the utility model are, when work high above the ground people or object fall when maybe needing to fall accidentally, use the utility model and can make people or the slow safely dropping of object, and its reliability and feasibility are strong, and be simple in structure, and volume is little, and is easy to operate, cheap for manufacturing cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model longitudinal sectional view, is front view.

Fig. 2 is the utility model transverse sectional view, is vertical view, adopts the half sectional view technique of painting.

Fig. 3 is a left view.

Fig. 4 is the outline drawing of front view.

Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 are the longitudinal sectional views that the utility model embodiment is in diverse location.

1. track interareas among the figure, 2. housing, 3. slide groove, 4. cam, 5. camshaft, 6. rocking arm, 7. suspension ring, 8. track, the 9. secondary face of track, 10. contact block, 11. armfuls of pieces, 12. hooks, 13. rollers, 14. manufactured heads.

The specific embodiment

In Fig. 1, Fig. 2, Fig. 3, Fig. 4:comprising that track (8) is gentle falls body, and the main truncation surface of track (8) is the T font, vertically is fixed on the building, and track (8) is provided with orbital plane, and orbital plane comprises track interarea (1) and track pair face (9); Slow down body is enclosed within on the track (8); Slow down body comprises housing (2); Cam (4); Camshaft (5); Rocking arm (6) and roller (13); The horizontal section of housing (2) is the rectangular tubular of left end opening; Holding block (11) is made at the shell nozzle two ends; Embrace track (8) by holding block (11); The upper end of holding block (11) is provided with contact block (10) and contacts with track minor face (9); The lower end of holding block (11) is equipped with roller (13); Roller (13) rolls in track minor face (9); The corresponding slide groove (3) that has inclination on the two sides, front and back of housing (2); Slide groove contains camshaft (5); Camshaft (5) can slide up and down in slide groove or roll; Cam (4) is installed on the camshaft (5); Cam (4) contacts with track interarea (1) and rolls at track interarea (1); Camshaft (5) both sides extend to that housing (2) is outer and rocking arm (6) is hinged, and camshaft (5) also is the rotating shaft of rocking arm (6), and camshaft (5) two ends are located by manufactured head (14); Rocking arm (6) is enclosed within on the housing (2), and its side view is a V-arrangement, and the right-hand member of rocking arm (6) is made suspension ring (7) circlewise, in order to being connected with freely falling body; The left end opening of rocking arm (6), and be provided with hook (12) and be pressed on the left surface of housing (2); During use, people or object are tied up on the suspension ring (7) by safety belt.

The expression slow embodiment of body when rising that fall of the present utility model in Fig. 5: when people or object carry the slow body that falls when track (8) rises, rise by the safety belt lifting ring (7) that ties up to people or object, driving rocking arm (6) rises; rocking arm (6) drives camshaft (5) and rises together with cam (4); cam (4) is because the effect of deadweight; its right side always contact with inner walls; and the left side of cam (4) produces the space with track interarea (1); rocking arm (6) drives the peak of camshaft (5) to slide groove (3); and drive housing (2) and scratch roller (13) and be rotated counterclockwise certain angle; make the contact block of embracing on the piece (11) (10) the secondary face (9) that de-orbits; only contacted with the secondary face of track (9) by roller (13) and in upward rolling of track pair face (9); thereby, alleviate the resistance of people or object rising.

At Fig. 6; Fig. 7; Fig. 8; Embodiment principle procedure chart when expression slow down body of the present utility model falls among Fig. 9: when people or object fall when maybe needing to fall accidentally; Action of Gravity Field lower lift ring (7) at people or object presses down; Driving rocking arm (6) falls; Rocking arm (6) drives camshaft (5) and falls together with cam (4); And effect rocking arm (6) is scratched camshaft (5) and is turned clockwise; Under the effect of lever force; The contact block (10) that the hook (12) of rocking arm (6) left end promotes holding block (11) upper end of housing (2) leans against on the track minor face (9); At this moment; Rocking arm (6) drives camshaft (5) and glides in the slide groove that tilts; Rocking arm (6) is always given (5) power to track (8) direction of camshaft; Make cam (4) near track interarea (1) and finally be close to track interarea (1); To realize that cam (4) rolls at track interarea (1); Above-mentioned contact block (10) leans against on the track minor face (9); Give people from whereabouts or object one resistance; But this resistance can not stop people or object to glide; After this; Cam (4) is in the upper rolling downwards of track interarea (1); When both camshaft (5) was apart from track interarea (1) closest approach when camshaft (5) is rolled to the minimum point of chute; Cam (4) continues in the upper rolling downwards of track interarea (1); But camshaft (5) begins to move in chute; Because track interarea (1) and chute strengthen the rotary resistance of cam (4) to the extruding force increase of cam (4) gradually; Thereby; Reduce gradually gliding speed; When both camshaft (5) was apart from track interarea (1) solstics when camshaft (5) is rolled to the peak of chute; Cam (4) continues in the upper rolling downwards of track interarea (1); But camshaft (5) begins to move down in chute; Because track interarea (1) and chute reduce the rotary resistance of cam (4) to the extruding force minimizing of cam (4) gradually; Thereby; Increase gradually gliding speed; Like this; Under the Action of Gravity Field of people or object; Along with cam (4) constantly rolls along track interarea (1) is upper; Camshaft (5) moves up and down in chute; Make the decrease speed of slow down body fast; Slowly; Hurry up; Slowly hocket; Because the effect of frictional force; Slow down body is slowly fallen, guarantee safety.

Claims

1. work high above the ground safety slow descending device comprises the gentle body that falls of track, slowly falls body and comprises housing, cam, camshaft, rocking arm and roller, it is characterized in that: slowly fall body and be enclosed within on the track, track is provided with orbital plane, and orbital plane comprises track interarea and the secondary face of track.

2. work high above the ground safety slow descending device according to claim 1, it is characterized in that: the horizontal section of described housing is the tubulose of opening, the shell nozzle two ends are provided with embraces piece, embrace track by embracing piece, the upper end of embracing piece is provided with contact block, contact block contacts with the secondary face of track, and the lower end of embracing piece is provided with roller, and roller rolls on the secondary face of track.

3. work high above the ground safety slow descending device according to claim 1, it is characterized in that: the corresponding slide groove that is provided with inclination on the described housing two sides, slide groove contains camshaft, camshaft can slide up and down in slide groove or roll, cam is installed on the camshaft, and cam contacts with the track interarea and rolls on the track interarea, and it is outer and rocking arm is hinged that the camshaft both sides extend to housing, camshaft also is the rotating shaft of rocking arm, and the camshaft two ends are provided with manufactured head.

4. work high above the ground safety slow descending device according to claim 1, it is characterized in that: described rocking arm is enclosed within on the housing, its side view is a V-arrangement, the right-hand member of rocking arm is done circlewise, the left end opening of rocking arm, and be provided with the hook be pressed on the left surface of housing.