CN201880234U - Adjustable gear descent control device - Google Patents

Abstract

The utility model discloses an adjustable gear descent control device. A driving shaft (1), a driven shaft (2) and a fan blade shaft (3) are installed on a case body (13); a gear wheel and a pinion (4 and 5) of the driving shaft are located on the driving shaft (1); a gear wheel and a pinion (6 and 7) as well as a bevel gear wheel (8) of the driven shaft are located on the driven shaft (2); a bevel pinion (9) is located on the fan blade shaft (3); the fan blade shaft (3) is provided with fan blades (12); a rocking handle (15) is installed on a groove cam (16); a pin shaft (19) in a groove of the groove cam (16) is connected with a connecting rod (17); the connecting rod (17) is provided with a shift fork (18); the shift fork (18) covers the gear wheel (4) of the driving shaft; the connecting rod (17) is installed on the case body (13); a sleeve (22) is installed on the driving shaft (1); a ratchet (23) on the driving shaft (1) is matched with the sleeve (22); and a rope (21) winds around the sleeve (22). By adopting the principle of air damping, the adjustable gear descent control device solves the problem of personnel escape by self when a disaster happens to a high-rise building, and is safe and reliable.

Description

Adjustable gear descending lifeline

Technical field

The utility model relates to descending lifeline, is specifically related to a kind of adjustable gear descending lifeline.

Background technology

Make a general survey of present fire-fighting equipment industry, the escape mode of high-rise emergency escape descending lifeline mainly is divided into: the high-rise emergency escape descending lifeline of fixed colony, the high-rise emergency escape descending lifeline of mobile personal and individual bear the type descending lifeline; Fall principle and can be divided into from the descending lifeline core is slow: do not have the friction-type descending lifeline of electricity operation and do not have the air damp type descending lifeline of electricity operation.The more complicated that has, as the high-rise emergency escape descending lifeline of fixed colony, advantage is that many people are landed simultaneously, but wants many people to cooperate, and wants could use after the special training, is subjected to the restriction of certain landform occasion.

Summary of the invention

The purpose of this utility model is: a kind of adjustable gear descending lifeline is provided, and this descending lifeline adopts the air damping principle, and the problem of personnel's self-help escape was both safe and reliable, economical and practical again when solving the generation of skyscraper disaster.

Technical solution of the present utility model is: this descending lifeline comprises transmission mechanism, cam link mechanism and ratchet mechanism, described transmission mechanism comprises driving shaft, driven shaft, blade shaft, the driving shaft gear wheel, the driving shaft pinion, the driven shaft pinion, the driven shaft gear wheel, bevel gear wheel, bevel pinion, fan blade and casing, driving shaft and driven shaft through bearing and bearing block level in being installed in casing, blade shaft is vertical with bearing block to being installed on the casing through bearing, driving shaft gear wheel and driving shaft pinion pass through the feather key axial location on driving shaft, the driven shaft pinion, driven shaft gear wheel and bevel gear wheel are positioned on the driven shaft by the shaft shoulder and axle sleeve, the general interference fit of bevel pinion and with the key axial location on blade shaft, driving shaft gear wheel engagement driven shaft pinion, driving shaft pinion driven shaft gear wheel, bevel gear wheel engagement bevel pinion stretches out the top of the outer blade shaft of casing fan blade is installed; Described cam link mechanism comprises rocking handle, grooved cam, connecting rod, shift fork and frame; rocking handle is installed on the grooved cam through hinge; in the groove of grooved cam bearing pin is installed; bearing pin connects a wherein summit of delta link; on another summit of connecting rod shift fork is installed; shift fork covers the driving shaft gear wheel, is installed on the casing by bolt through frame on the 3rd summit of connecting rod; Described ratchet mechanism comprises sleeve, ratchet, ratchet and rope, and two sleeves are installed in respectively on the two ends of driving shaft with bolt and key, ratchet is installed through the click-fit sleeve on the driving shaft, and rope is wrapped on the barrel of sleeve.

When disaster takes place, personnel catch rope to descend, rope drives the sleeve rotation, sleeve drives ratchet, thereby ratchet drives driving shaft, people's kinetic energy is passed to driving shaft, and by driving shaft gear wheel, driving shaft pinion, driven shaft pinion, driven shaft gear wheel, bevel gear wheel and bevel pinion, energy passes to fan blade the most at last again, the fan blade rotating energy is consumed by air drag, thereby the speed that the people is descended reaches a safety speed; Shake rocking handle swivelling chute cam, set aside the untie-sell axle in the effect of grooved cam, thereby connecting rod is moved, drive shift fork and stir the driving shaft gear wheel at the driving shaft top offset, the gears engaged of different drive ratios reaches throw-over, adapts to the individuality of Different Weight; After disaster took place, the counter-rotating sleeve was by ratchet wraparound rope.

The utlity model has following advantage: 1, adopt the air damping principle, the potential energy that discharges when people, thing are descended in gravitational field is transformed into the kinetic energy of spiral leaf, make fan blade do rotation at a high speed, kinetic energy when fan blade is done to rotate is at a high speed consumed by air drag, and safety within zone of reasonableness is landed thereby speed is landed in restriction; 2, utilize cam link mechanism to realize that gear moves on axle, thereby make the gears engaged work of different drive ratios, change people's decrease speed, be applicable to people's escape of different weight; 3, adopt ratchet carriage mechanism, make a sleeve fall another sleeve of man-hour and unroll voluntarily, the people can uninterruptedly be landed by turns from both sides, and quickly and orderly is given full play to the effect of single device, but when disaster wraparound lifesaving rope later, convenient and swift; 4, simple in structure, cost is low, and the efficient height is safe and reliable, reuses collective's self-help escape when being particularly useful for high level, high-rise building generation disaster continuously; 5, have excellent dropping characteristic, therefore speed stabilizing need not increase complicated, fragile automatic speed governor in addition voluntarily, simple and reliable.

Description of drawings

Fig. 1 is the transmission mechanism schematic diagram.

Fig. 2 is the cam link mechanism schematic diagram.

Fig. 3 is the ratchet carriage structural scheme of mechanism.

Among the figure: 1 driving shaft, 2 driven shafts, 3 blade shafts, 4 driving shaft gear wheels, 5 driving shaft pinions, 6 driven shaft pinions, 7 driven shaft gear wheels, 8 bevel gear wheels, 9 bevel pinions, 10 axle sleeves, 12 fan blades, 13 casings, 14 hinges, 15 rocking handles, 16 grooved cams, 17 connecting rods, 18 shift forks, 19 bearing pins, 20 frames, 21 ropes, 22 sleeves, 23 ratchets, 24 ratchets.

The specific embodiment

As Figure 1-3, this descending lifeline comprises transmission mechanism, cam link mechanism and ratchet mechanism, described transmission mechanism comprises driving shaft 1, driven shaft 2, blade shaft 3, driving shaft gear wheel 4, driving shaft pinion 5, driven shaft pinion 6, driven shaft gear wheel 7, bevel gear wheel 8, bevel pinion 9, fan blade 12 and casing 13, driving shaft 1 and driven shaft 2 through bearing and bearing block level in being installed in casing 13, blade shaft 3 is vertical with bearing block to being installed on the casing 13 through bearing, driving shaft gear wheel 4 and driving shaft pinion 5 pass through the feather key axial location on driving shaft 1, driven shaft pinion 6, driven shaft gear wheel 7 and bevel gear wheel 8 are positioned on the driven shaft 2 by the shaft shoulder and axle sleeve 10, bevel pinion 9 general interference fit and with the key axial location on blade shaft 3, driving shaft gear wheel 4 engagement driven shaft pinions 6, driving shaft pinion 5 engagement driven shaft gear wheels 7, bevel gear wheel 8 engagement bevel pinions 9 stretch out the top of the blade shaft 3 outside the casing 13 fan blade 12 are installed; Described cam link mechanism comprises rocking handle 15, grooved cam 16, connecting rod 17, shift fork 18 and frame 20; rocking handle 15 is installed on the grooved cam 16 through hinge 14; bearing pin 19 is installed in the groove of grooved cam 16; bearing pin 19 connects a wherein summit of delta link 17; shift fork 18 is installed on another summit of connecting rod 17; shift fork 18 covers driving shaft gear wheel 4, is installed on the casing 13 by bolt through frame 20 on the 3rd summit of connecting rod 17; Described ratchet mechanism comprises sleeve 22, ratchet 23, ratchet 24 and rope 21, two sleeve 22 usefulness bolts and key are installed in respectively on the two ends of driving shaft 1, ratchet 23 is installed on the driving shaft 1 is cooperated sleeve 22 through ratchet 24, rope 21 is wrapped on the barrel of sleeve 22.

When disaster takes place, personnel catch rope 21 to descend, rope 21 drives sleeve 22 rotations, sleeve 22 drives ratchet 23, thereby ratchet 24 drives driving shaft 1, people's kinetic energy is passed to driving shaft 1, and by driving shaft gear wheel 4, driving shaft pinion 5, driven shaft pinion 6, driven shaft gear wheel 7, bevel gear wheel 8 and bevel pinion 9, energy passes to fan blade 12 the most at last again, fan blade 12 rotating energies are consumed by air drag, thereby the speed that the people is descended reaches a safety speed; Shake rocking handle 15 swivelling chute cams 16, set aside untie-sell axle 19 in the effect of grooved cam 16, thereby connecting rod 17 is moved, drive shift fork 18 and stir driving shaft gear wheel 4 at driving shaft 1 top offset, the gears engaged of different drive ratios reaches throw-over, adapts to the individuality of Different Weight; After disaster took place, counter-rotating sleeve 22 was by ratchet 23 wraparound ropes 21.

Claims (1)

1. adjustable gear descending lifeline, it is characterized in that: this descending lifeline comprises transmission mechanism, cam link mechanism and ratchet mechanism, described transmission mechanism comprises driving shaft (1), driven shaft (2), blade shaft (3), driving shaft gear wheel (4), driving shaft pinion (5), driven shaft pinion (6), driven shaft gear wheel (7), bevel gear wheel (8), bevel pinion (9), fan blade (12) and casing (13), driving shaft (1) and driven shaft (2) through bearing and bearing block level in being installed in casing (13), blade shaft (3) is vertical with bearing block to being installed on the casing (13) through bearing, driving shaft gear wheel (4) and driving shaft pinion (5) pass through the feather key axial location on driving shaft (1), driven shaft pinion (6), driven shaft gear wheel (7) and bevel gear wheel (8) are positioned on the driven shaft (2) by the shaft shoulder and axle sleeve (10), the general interference fit of bevel pinion (9) and with the key axial location on blade shaft (3), driving shaft gear wheel (4) engagement driven shaft pinion (6), driving shaft pinion (5) engagement driven shaft gear wheel (7), bevel gear wheel (8) engagement bevel pinion (9) stretches out the top of the outer blade shaft (3) of casing (13) fan blade (12) is installed; Described cam link mechanism comprises rocking handle (15), grooved cam (16), connecting rod (17), shift fork (18) and frame (20); rocking handle (15) is installed on the grooved cam (16) through hinge (14); bearing pin (19) is installed in the groove of grooved cam (16); bearing pin (19) connects a wherein summit of delta link (17); shift fork (18) is installed on another summit of connecting rod (17); shift fork (18) covers driving shaft gear wheel (4), is installed in by bolt on the casing (13) through frame (20) on the 3rd summit of connecting rod (17); Described ratchet mechanism comprises sleeve (22), ratchet (23), ratchet (24) and rope (21), two sleeves (22) are installed in respectively on the two ends of driving shaft (1) with bolt and key, driving shaft (1) is gone up and ratchet (23) is installed through ratchet (24) cooperation sleeve (22), and rope (21) is wrapped on the barrel of sleeve (22).

Images