CN209809331U - High-altitude electric power construction's ware slowly falls of fleing fast - Google Patents

Abstract

The embodiment of the utility model discloses a quick escape and descending device for high-altitude electric power construction, which includes a casing and a buckle arranged on the upper end of the casing. A central driven shaft is arranged inside the casing, and the center driven A central driven wheel and a friction buffer wheel are fixedly installed on the rotating shaft, and two active rotating shafts are arranged on the housings on both sides of the central driven rotating shaft, and the two driving rotating shafts are equipped with The two driving sheaves are equipped with steel wire pulleys, the two ends of the steel wire pulleys pass through the guide through holes below the housing, and the side wall of the friction buffer wheel is in contact with the housing Friction is generated on the side wall of the utility model, and the slow descender of the utility model generates friction between the fan-shaped friction block and the shell through centrifugal force to provide frictional damping, thereby controlling the descending speed of the human body, making the descending process safe and stable, and has a simple structure and compact size. Easy to carry.

Description

A kind of rapid escape and descending device for high-altitude electric power construction

technical field

The embodiment of the utility model relates to the technical field of escape devices, in particular to a rapid escape descent device for high-altitude power construction.

Background technique

The slow descent device is composed of a hook (or ring), a sling, a rope, and a speed control, etc. It is a safety rescue device that allows people to slowly descend along (following) the rope (belt). It can be installed on building windows, balconies or flat roofs of buildings with special installation equipment, and can also be installed on elevating fire trucks to rescue victims in high-rise buildings on fire. The descending device is suitable for the production of descending devices for high-rise escape. When working, the slow-down rope drives the planetary gear reduction mechanism in the main engine to run and rubs against the friction block in the friction hub to ensure the user's safety and slow down to the ground. The slow descent rope is generally made of high-grade aviation steel wire rope inner core, outer braided sheath, and a set of safety belts at each end, which is relatively strong. Ordinary descending device is simple and convenient to install and use. It is fixed to the emergency window in the building through the configured safety hook or auxiliary rope or temporarily suspended on the window, balcony or fixed object on the flat roof of the building to slow down and escape.

However, the existing descending devices are bulky, inconvenient to carry, and have defects such as unsmooth descent.

Utility model content

For this reason, the embodiment of the utility model provides a rapid escape slow-down device for high-altitude electric power construction. Through centrifugal force, friction is generated between the fan-shaped friction block and the housing to provide frictional damping, thereby controlling the descending speed of the human body and making the descending process safe and stable. , and the structure is simple, the volume is compact, and it is easy to carry, so as to solve the problem that the descending device in the prior art is bulky, inconvenient to carry, and does not descend smoothly.

In order to achieve the above object, the utility model embodiment provides the following technical solutions:

A rapid escape and descending device for high-altitude electric power construction, including a housing and a buckle arranged on the upper end of the housing, a central driven rotating shaft is arranged inside the housing, and a central slave is fixedly installed on the central driven rotating shaft. The driving wheel and the friction buffer wheel, two driving shafts are arranged on the shells on both sides of the center driven shaft, and the driving sheaves meshing with the edge of the center driven wheel are installed on the two driving shafts. The driving sheave is covered with a steel wire stay rope, and the two ends of the steel wire stay rope go out through the guide hole below the housing, and the side wall of the friction buffer wheel rubs against the side wall of the housing.

The utility model embodiment is also characterized in that an adjustment wheel set is arranged below the driving sheave, and the adjustment wheel set includes three adjustment wheels, and the two ends of the steel wire stay cross through the wheel groove of the driving sheave. Then respectively introduce into the wheel gaps formed by the three adjusting wheels.

The embodiment of the utility model is also characterized in that the friction buffer wheel includes a runner body, the side of the runner body has a plurality of fan-shaped grooves in an annular array, and fan-shaped friction blocks are arranged inside the fan-shaped grooves.

The embodiment of the utility model is also characterized in that the side edge of the sector-shaped friction block exceeds the side edge of the sector-shaped groove.

The utility model embodiment is also characterized in that the longitudinal section of the wheel groove of the driving sheave is an isosceles trapezoid, and the included angle between the waist and the top edge of the isosceles trapezoid is 90°-120°.

Embodiments of the utility model have the following advantages:

The slow descender of the utility model makes the friction between the fan-shaped friction block and the shell provide frictional damping through centrifugal force, thereby controlling the descending speed of the human body, making the descending process safe and stable, simple in structure, compact in size and easy to carry.

Description of drawings

In order to more clearly illustrate the implementation of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the implementation or the prior art. Apparently, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.

The structures, proportions, sizes, etc. shown in this manual are only used to cooperate with the content disclosed in the manual for the understanding and reading of those who are familiar with this technology, and are not used to limit the limited conditions that the utility model can be implemented, so there is no In technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the invention disclosed in the utility model without affecting the effect and purpose of the utility model. within the scope of the technical content.

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the top view of the overall structure of the utility model;

Fig. 3 is a structural schematic diagram of the friction buffer wheel of the present invention;

Fig. 4 is the front structure schematic diagram of driving sheave of the present utility model;

Fig. 5 is a schematic cross-sectional structure diagram of A-A' in Fig. 4 of the present utility model.

In the picture:

1-housing; 2-central driven shaft; 3-central driven wheel; 4-friction buffer wheel; 5-driving shaft; Wheel set; 10-clip;

401-runner body; 402-sector groove; 403-sector friction block; 601-wheel groove; 901-regulating wheel.

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below. Those who are familiar with this technology can easily understand other advantages and effects of the present utility model from the contents disclosed in this description. Obviously, the described embodiments are the embodiment of the present utility model. Some, but not all, embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Fig. 1 to Fig. 5, the utility model provides a rapid escape and descending device for high-altitude electric power construction, which includes a housing 1 and a clip set on the upper end of the housing 1 for buckling on a building or a pole. Buckle 10, the inside of the housing 1 is provided with a central driven shaft 2, and the central driven shaft 2 can move radially inside the housing 1. The central driven shaft 2 is fixedly mounted with a central driven wheel 3 and a friction buffer wheel 4 for generating reduced friction, and two active shafts 5 are arranged on the housing 1 on both sides of the central driven shaft 2, and the two active shafts 5 are equipped with a driving sheave 6 meshing with the edge of the center driven wheel 3, and the two driving sheaves 6 are equipped with a steel wire stay rope 7, and the two ends of the steel wire stay rope 7 pass through the guide through hole 8 below the housing 1. out, and the side wall of the friction buffer wheel 4 rubs against the side wall of the housing 1 .

In order to make the steel wire stay rope 7 vertically descend along the predetermined direction and reduce the resistance in the descent, an adjustment wheel set 9 is arranged below the driving sheave 6, and the adjustment wheel set 9 includes three adjustment wheels 901. The ends are respectively introduced into the wheel gaps formed by the three regulating wheels 901 after crossing the wheel grooves 601 of the driving sheave 6 . Prevent the two ends of steel wire stay rope 7 from being too large in opening angle, and the descending resistance is too large. The friction buffer wheel 4 will produce greater wear after repeated use, and if it is directly discarded, the cost of use will be increased. Therefore, the friction buffer wheel 4 includes a runner body 401, and the side annular array of the runner body 401 has a number of fan-shaped grooves 402. A fan-shaped friction block 403 is disposed inside the groove 402 . The worn sector friction block 403 can be lost and replaced. Preferably, the side edge of the sector-shaped friction block 403 exceeds the side edge of the sector-shaped groove 402 .

In order to improve the friction between the steel wire stay rope 7 and the two driving sheave 6, the longitudinal section of the wheel groove 601 of the driving sheave 6 is an isosceles trapezoid, and the angle between the waist and the top edge of the isosceles trapezoid is 90°～ 120°.

As a preferred embodiment: when in use, hang the buckle 10 at one end of the descender on the high-altitude building, and bind the steel wire stay rope 7 drawn from the housing 1 to the user, and then quickly Descending, because the two driving sheave 6 are all meshed with the outer edge of the center driven wheel 3, and the fan-shaped friction block 403 in the fan-shaped groove 402 of the friction buffer wheel 4 rubs against the inner wall of the housing 1, so that the steel wire stay rope 7 generates friction. frictional resistance. During work, the steel wire stay rope 7 drives the two driving sheave 6 to rotate by the friction between the trapezoidal wheel grooves 601 of the two driving sheave 6, because both driving sheave 6 and center driven sheave 3 The outer edges are meshed, so that the rotating central driven wheel 3 drives the central driven shaft 2 to rotate, and the fan-shaped friction block 403 on the friction buffer wheel 4 on the central driven shaft 2 slides radially due to centrifugal force, pressing the housing The inner wall of 1 produces frictional damping, and the load-bearing, centrifugal force and frictional damping of steel wire stay rope 7 are directly proportional, thereby control its descending speed evenly, and descending process is smooth, has guaranteed the safe landing of personnel.

The slow descender of the utility model provides frictional damping through the friction between the fan-shaped friction block 403 and the housing 1 through centrifugal force, thereby controlling the descending speed of the human body, making the descending process safe and stable, and simple in structure, compact in size and easy to carry.

Although the utility model has been described in detail with general description and specific examples above, some modifications or improvements can be made on the basis of the utility model, which will be obvious to those skilled in the art. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the protection scope of the utility model.

Claims (5)

1. A fast escape and descending device for high-altitude electric power construction, characterized in that: it includes a housing (1) and a buckle (10) arranged on the upper end of the housing (1), and the inside of the housing (1) is set There is a center driven shaft (2), on which a center driven wheel (3) and a friction buffer wheel (4) are fixedly mounted, and the housings on both sides of the center driven shaft (2) (1) is provided with two driving rotating shafts (5), and the driving sheave (6) that is engaged with the edge of described center driven wheel (3) is all installed on two described driving rotating shafts (5), two described The driving sheave (6) is covered with a steel wire stay rope (7), and the two ends of the steel wire stay rope (7) pass through the guide through hole (8) below the housing (1), and the friction buffer wheel The side wall of (4) generates friction with the side wall of the casing (1). 2. A kind of rapid escape and descending device for high-altitude electric power construction according to claim 1, characterized in that: an adjustment wheel set (9) is arranged below the driving sheave (6), and the adjustment wheel set ( 9) It includes three regulating wheels (901), and the two ends of the steel wire stay rope (7) are respectively introduced into the three regulating wheels (901) formed by crossing the wheel groove (601) of the driving sheave (6). in the wheel gap. 3. The rapid escape and descending device for high-altitude electric power construction according to claim 1, characterized in that: the friction buffer wheel (4) includes a runner body (401), and the runner body (401) The side annular array has several fan-shaped grooves (402), and the inside of the fan-shaped grooves (402) is provided with fan-shaped friction blocks (403). 4. The rapid escape descent device for high-altitude electric power construction according to claim 3, characterized in that: the side edge of the fan-shaped friction block (403) exceeds the side edge of the fan-shaped groove (402). 5. The rapid escape and descending device for high-altitude electric power construction according to claim 1, characterized in that: the longitudinal section of the wheel groove (601) of the driving sheave (6) is an isosceles trapezoid, and the equal The included angle between the waist and the top edge of the waist trapezoid is 90° to 120°.