CN2770701Y

CN2770701Y - High altitude self-controlled slow-falling device

Info

Publication number: CN2770701Y
Application number: CN 200520008397
Authority: CN
Inventors: 蒋平锁
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-22
Filing date: 2005-03-22
Publication date: 2006-04-12
Anticipated expiration: 2015-03-22

Abstract

The utility model relates to a high altitude self-controlled slow-falling device, the friction rope wheels of which are divided into an upper set and a lower set. Disc friction plates are arranged between shell bodies on both sides, are symmetrically arranged above and under an active control gear shaft, and are engaged by a gear. Shafts of the friction rope wheels are fixed by the shell bodies arranged on both sides. The extending end of the active control gear shaft is supported on the shell body arranged on one side and is connected with a handle, and the other shaft end is supported on a spiral shaft sleeve which is fixedly installed on the shell body arranged on the other side. Both sides of the active control gear shaft are respectively provided with the friction plates. A spiral shaft is connected with the other end of the spiral shaft sleeve by transferring screw threads, and the front end of the spiral shaft acts on the friction plates arranged on both sides of the active control gear shaft by a bearing and a disk spring. An adjusting knob is connected with the end of the spiral shaft. A slow-falling rope is wound in rope guiding slots of the upper friction rope wheel and the lower friction rope wheel. A hanging rope ring which is used for hanging a human body and is provided with high strength is fixed at a corresponding position of the device. The purpose that the falling speed is automatically controlled by a person can be realized by the device. The high altitude self-controlled slow-falling device has the advantages of realization of stable hanging, mental horror elimination, optimum structure, light weight, high reliability, and expansion of suitable person range.

Description

High-altitude self-controlled slow falling device

Technical field the utility model belongs to delay from high-altitude building or structures and falls and a kind of rope landing-gear of height rescue, work high above the ground, refers to a kind of self-controlled slow falling device especially.

The background technology high-altitude slow-descending equipment has polytype and structure, and personnel are by the transfer of high-altitude to the low latitude for the realization of the equal energy of its function.Wherein typical rope falls the class patent and relies on the own wt of human body as the power that descends in the principle design, utilize personnel descend in device rope-winding wheel rotation speedup, the centrifugal brake block that is connected with the rope-winding wheel consubstantiality moves outward with the fixed friction piece and produces damping force, and the effect that reaches dynamic equilibrium makes the people drop to safety place with a speed that at the uniform velocity descends relatively.As China patent CN86207152 " high-altitude self-controlled safe life-saving descending lifeline ", decrease speed is less than 2 meters of per seconds, but and the high-altitude unsettled braking brake of fixing a point carry out work; China patent CN2175011 " high building lifesaving slow falling apparatus ", average reduction of speed is about 0.15 meter of per second; China patent CN2193753 " fire in high buildings lifesaving descent control device ", it is zero that centrifugal brake shoe and brake drum generation frictional force make the decline acceleration, rope ends is installed safety belt simultaneously, can be used alternatingly continuously.The obvious weak point of said apparatus is can not realize effective control of decrease speed and steadily hover that can't eliminate personnel's feared state of mind, the influence that the scope of promoting the use of is subjected to crowd characteristic is big.

The summary of the invention the purpose of this utility model is to provide a kind of can realize that personnel are from the main control decrease speed, and the realization personnel are skyborne steadily hovers, eliminate user's the feared state of mind, optimize structure simultaneously, weight reduction, improve reliability, enlarge the high-altitude self-controlled slow falling device that is suitable for crowd's scope.

For achieving the above object, the technical scheme that the utility model is taked is: a kind of high-altitude self-controlled slow falling device, comprise housing, friction rope sheave and the slow rope that falls, it is characterized in that described friction rope sheave is divided into upper and lower two groups, be symmetricly set on the upper and lower of ACTIVE CONTROL gear shaft and by gear and its engagement, the friction bands wheel shaft is fixed in the co-axial grooves that is made of two side bodies, and rolling bearing is enclosed within on the friction bands wheel shaft, and the friction rope sheave is enclosed within on the rolling bearing; Be provided with between upper and lower friction rope sheave and two side bodies and be subjected to the disc type friction plate that dish spring precompose is exerted oneself; The ACTIVE CONTROL gear shaft is positioned at the geometric center of housing, its external part is supported on the side body and with the handle of hull outside and links to each other, another axle head is supported on the spiral sleeve, spiral sleeve is fixedly mounted on the opposite side housing and is on the same axis with the ACTIVE CONTROL gear shaft, ACTIVE CONTROL gear shaft both sides are equipped with friction plate respectively, helical axis is connected with the spiral sleeve other end by transmitting screw thread, its front end acts on the friction plate of ACTIVE CONTROL gear shaft both sides by thrust bearing and disk spring, adjust knob and be connected, adjust knob by rotation and can adjust the active force that acts on ACTIVE CONTROL gear shaft both sides with the spiral the tip of the axis; The slow rope that falls is wrapped in the conductor rope groove of upper and lower two friction rope sheaves, slowly falls rope and is provided with the damping dead turn at the import and export of housing, adjusts its damping force by tight power swing handle up and down; High-strength suspension becket bridle is fixed on the corresponding site of device, and human body is hung on device by high-strength suspension becket bridle.

Compared with prior art, the utlity model has following characteristics:

1. human body weight acts on friction decline turning moment that produces on the rope sheave and the reverse frictional couple square that the disc type friction plate acts on the rope sheave that rubs and reaches static balancing, the power resources that descend are manually rotated the handle that links to each other with the ACTIVE CONTROL gear shaft in operating personnel, and the rope sheave that rubs up and down of drive synchronously rotates according to equidirectional, realize that operating personnel are in company with the slow decline of falling the rope safety and steady in slow descending device edge, and can not have at any time to impact and hover, eliminate user's the feared state of mind.

2. the body weight load change scope that adapts to operating personnel is wide, and body weight the personnel in 30-120 kgf scope all can safe and reliablely use.

3. because device is to descend along the slow rope that falls, be not subjected to the restriction of falling head, the working depth scope is wide.

4. decrease speed by operating personnel from main control, decrease speed per second 0-0.5 rice, flexibly automatic control, security performance is higher, has reduced the influence of other hazard factor in the decline passway.

5. the adaptation population is in extensive range, particularly has the healthy population that adjustable control means is adapted to various age brackets, also can use after one-armed man scholar's training.Because the friction rope sheave is symmetrical arranged up and down, only need to adjust the fixed position of high-strength suspension becket bridle, just can satisfy the selection requirement that the right-hand man is accustomed to the personage.

6. because the rope sheave of friction up and down, two side bodies of device are symmetrical structure, make its compactness reasonable in design.

Description of drawings Fig. 1 is a high-altitude self-controlled slow falling device Facad structure profile

Fig. 2 is that figure cuts open in high-altitude self-controlled slow falling device side structure office

Fig. 3 is that the slow rope that falls twines graph of a relation with the friction rope sheave

Among the figure, 1-damping dead turn; 2-connecting rivet; 3-left side housing; 4-friction bands wheel shaft; 5-rolling bearing; 6-left disc type friction plate; 7-left disc type friction plate dish spring; 8-friction rope sheave; 9-single thrust bearing; 10-sunk screw; 11-disk spring; 12-helical axis; 13-spiral sleeve; 14-adjustment knob; 15-following tight power swing handle; 16-tighten the power swing handle; 17-handle sheath; 18-right disc type friction plate; 19-right disc type friction plate dish spring; 20-special-shaped friction plate; 21-handle; 22-trip bolt; 23-ACTIVE CONTROL gear shaft; The right friction plate of 24-gear shaft; 25-right side housing; 26-high-strength suspension becket bridle; 27-slow the rope that falls; 28-adjustment packing ring.

The specific embodiment as shown in Figure 1 and Figure 2, this device by housing, up and down identical two friction bands wheels, ACTIVE CONTROL gear shaft assembly, slow rope falls and high-strength suspension becket bridle constitutes.

Housing is divided into left side housing 3 and right side housing 25, left side housing 3 is fixing by eight connecting rivets 2 with right side housing 25, left and

right side housing

3,25 respectively has the slow hole of walking that falls rope 27 up and down, walk the place, hole up and down and be provided with damping dead turn 1 respectively, be enclosed within slow fall on the rope 27 the power that tightens swing handle 16 and down tight power swing handle 15 be connected with

housing

3,25 by screw thread, change to affact and delay the damping frictional force of falling on the rope 27 by rotating deflection that upper and lower tight power swing handle 16,15 can adjust damping dead turn 1.High-strength suspension becket bridle 26 is suspended on the device by the medium pore of below friction bands wheel hollow shaft 4, why friction rope sheave 8 and sheave shaft 4 thereof select hollow-core construction, the one, can alleviate the weight of whole device, the 2nd, be convenient to connect high-strength suspension becket bridle 26, the personal security is with hanging over the gravity effect of bearing operating personnel on the high-strength suspension becket bridle 26.When the medium pore of high-strength suspension becket bridle 26 by last friction bands wheel hollow shaft 4 is suspended on the device, can satisfy left-handed person custom personage's requirement.Adjust the default damping force of friction rope sheave 8 by the thickness of adjusting the adjustment packing ring 28 between the left and right sides housing 3,25.

The friction bands wheels comprise friction bands wheel shaft 4, rolling bearing 5, left disc type friction plate 6, right disc type friction plate 18, left disc type friction plate dish spring 7, right disc type friction plate dish spring 19 and the rope sheave 8 that rubs up and down.Friction bands wheel shaft 4 is fixed in the co-axial grooves that is made of left side housing 3, right side housing 25, and two rolling bearings arranged side by side 5 are enclosed within on the friction bands wheel shaft 4, and friction rope sheave 8 is enclosed within on the rolling bearing 5 free to rotate and a small amount of horizontal displacement.Both sides at friction rope sheave 8 are acting on left disc type friction plate 6 and dish spring 7, right disc type friction plate 18 and dish spring 19 thereof respectively, left and right sides disc type friction plate 6,18 is fixed on the left and right sides housing 3,25 by protruding nail, slight displacement but can not rotate vertically, they act on pressure on friction rope sheave 8 two sides by the default deflections decision of left and right sides disc type friction plate dish spring 7,19.Require to set the default deflection of different dish springs according to different users, also can change the damping level that the thickness of adjusting packing ring 28 is adjusted left and right sides disc type friction plate 6,18 simultaneously.

ACTIVE CONTROL gear shaft assembly comprises ACTIVE CONTROL gear shaft 23, the right friction plate 24 of gear shaft, the special-shaped friction plate 20 in left side, handle 21, handle sheath 17, helical axis 12, spiral sleeve 13, single thrust bearing 9, disk spring 11, adjusts knob 14, sunk screw 10 and trip bolt 22.The coaxial line axis hole carrying that the support of ACTIVE CONTROL gear shaft 23 is made of right side housing 25 and spiral sleeve 13, its right flank is close to by four trip bolts 22 and is fastened on the right friction plate 24 of gear shaft on the right side housing 25, its left surface is close to special-shaped friction plate 20, and handle 21 tight power are connected on the right side external part of ACTIVE CONTROL gear shaft 23.Spiral sleeve 13 is fixed on the housing 3 of left side by six sunk screws 10, helical axis 12 is threaded by transmission with spiral sleeve 13 and can rotates, at the front end of helical axis 12 single thrust bearing 9 is housed and heads on two back-to-back disk springs 11, and then head on special-shaped friction plate 20 and act on the left side rubbing surface of ACTIVE CONTROL gear shaft 23, by rotating the adjustment knob 14 that tight power is connected in helical axis 12 ends, make helical axis 12 on spiral sleeve 13, produce relative displacement, just can realize ACTIVE CONTROL gear shaft 23 with about two friction plates 20, the adjusting of pressure size between 24, realize delaying and fall the adjusting that in the process operating personnel is applied to the strength size on the rotary handle 21, reach stable, manual control requirement freely.

ACTIVE CONTROL gear shaft 23 is between upper and lower two groups of friction rope sheaves 8, respectively with upper and lower friction rope sheave 8 on gears engaged, operating personnel manually rotate the handle 21 that links to each other with ACTIVE CONTROL gear shaft 23, can drive upper and lower friction rope sheave 8 synchronously and rotate according to same direction.

Referring to Fig. 3, slow fall rope 27 and can select metal or non-metallic material, diameter can be adjusted with the conductor rope groove synchronously according to load is different, is processed into different sizes.The slow rope 27 that falls is wrapped in the conductor rope groove of friction rope sheave 8, and slow import and export of falling rope 27 are positioned at the same side of upper and lower friction rope sheave 8, and are on the same working face.Fall the opposite side that rope 27 is imported and exported slow, realize that the slow rope 27 that falls is by upwards the rub transposition of rope sheave n+1 groove of the rope sheave n groove that rubs down.The conductor rope groove quantity of friction rope sheave 8 changes according to delaying the coefficient of friction and the diameter difference of falling rope, can being chosen between the 3-20, produces the product of different-thickness series.The slow rope 27 that falls is when adopting steel wire ropes, and friction rope sheave 8 can adopt magnetic material to make, and to increase the frictional force between rope and the rope sheave, makes the volume of friction rope sheave 8 littler.

The above-mentioned high-altitude self-controlled slow falling device that the utility model provides, its upper and lower friction rope sheave 8 is subjected to 6, the 18 predefined pressure effects of disc type friction plate, adjust knob 14 and be in the state of screwing, ACTIVE CONTROL gear shaft 23 is subjected to special-shaped friction plate 20, the right friction plate 24 predefined pressure effects of gear shaft.Upper and lower friction rope sheave 8 and ACTIVE CONTROL gear shaft 23 are linked together by gear, constitute an integral body that rotatablely moves.The slow upper end that falls rope 27 is hung on the object of stable strong by safety hook, operating personnel's personal security is with (market purchasing) to hang on the high-strength suspension becket bridle 26, human body weight acts on device by high-strength suspension becket bridle 26 and extends to the slow upper end that falls rope 27, the reverse frictional couple square that decline turning moment that produces on upper and lower friction rope sheave 8 and disc type friction plate 6,18 act on friction rope sheave 8 reaches static balancing, and slow descending device is in stable state.Operating personnel reduce the pressure that acts on ACTIVE CONTROL gear shaft 23 rubbing surfaces by manual adjustment knob 14, the operation strength size of adjusting handle 21 is to suitable, rotary handle 21 drives ACTIVE CONTROL gear shaft 23 and rotates, and then drive upper and lower friction rope sheave 8 according to identical direction rotation, realize operating personnel in company with slow descending device along slow decline of falling rope 27 safety and steadies, and hover at any time.

Claims

1, a kind of high-altitude self-controlled slow falling device, comprise housing, friction rope sheave and the slow rope that falls, it is characterized in that described friction rope sheave (8) is divided into upper and lower two groups, be symmetricly set on the upper and lower of ACTIVE CONTROL gear shaft (23) and by gear and its engagement, friction bands wheel shaft (4) is fixed in the co-axial grooves that is made of two side bodies (3,25), rolling bearing (5) is enclosed within on the friction bands wheel shaft (4), and friction rope sheave (8) is enclosed within rolling bearing (5); Be provided with between upper and lower friction rope sheave (8) and two side bodies (3,25) and be subjected to the disc type friction plate (6,18) that dish spring (7,19) precompose is exerted oneself; ACTIVE CONTROL gear shaft (23) is positioned at the geometric center of housing, its external part is supported on a side body (25) and upward and with the handle (21) of hull outside links to each other, another axle head is supported on the spiral sleeve (13), spiral sleeve (13) is fixedly mounted on the opposite side housing (3), and be on the same axis with ACTIVE CONTROL gear shaft (23), ACTIVE CONTROL gear shaft (23) both sides are equipped with friction plate (20 respectively, 24), helical axis (12) is connected with spiral sleeve (13) other end by transmitting screw thread, its front end acts on the friction plate (20 of ACTIVE CONTROL gear shaft (23) both sides by thrust bearing (9) and disk spring (11), 24) on, adjust knob (14) and be connected with the end of helical axis (12); The slow rope (27) that falls is wrapped in the conductor rope groove of upper and lower two friction rope sheaves (8), slowly falls rope (27) and is provided with damping dead turn (1) and upper and lower tight power swing handle (16,15) at the import and export of housing; High-strength suspension becket bridle (26) is fixed on the corresponding site of device, and human body is hung on device by high-strength suspension becket bridle (26).

2, high-altitude self-controlled slow falling device according to claim 1, it is characterized in that the above-mentioned slow rope (27) that falls is wrapped in the conductor rope groove of friction rope sheave (8), slow import and export of falling rope (27) are positioned at the same side of upper and lower friction rope sheave (8), and be on the same working face, fall the opposite side that rope (27) is imported and exported slow, realize that the slow rope (27) that falls is by upwards the rub transposition of rope sheave n+1 groove of the rope sheave n groove that rubs down.

3, high-altitude self-controlled slow falling device according to claim 1 is characterized in that above-mentioned friction rope sheave (8) and wheel shaft (4) thereof are designed to hollow-core construction.

4, high-altitude self-controlled slow falling device according to claim 3 is characterized in that above-mentioned high-strength suspension becket bridle (26) passes friction bands wheel hollow shaft (4) and is suspended on the device.

5, high-altitude self-controlled slow falling device according to claim 1 is characterized in that above-mentioned delaying when falling rope (27) employing steel wire rope, and friction rope sheave (8) can adopt magnetic material to make.

6, high-altitude self-controlled slow falling device according to claim 1 is characterized in that being provided with between above-mentioned two side bodies (3,25) adjustment packing ring (28).