CN215084385U - Escapement type descent control device - Google Patents

Abstract

The utility model adopts a novel escapement mechanism to control the rotating speed of the planetary transmission wheel train in the descent control device, thereby achieving the aim of the uniform descending of the human body.

Description

Escapement type descent control device

(I) technical field

The utility model relates to an escape type descent control device, which belongs to fire-fighting lifesaving equipment.

(II) background of the invention

At present, fire escape descent control devices used in the world all adopt a centrifugal friction damping mechanism to achieve the purpose of controlling an escape human body to descend at a constant speed. The disadvantages of this mechanism are: the falling speed of a human body is controlled to be extremely unreliable by a friction damping mode, an out-of-control accident often occurs, the mechanism loses efficacy instantly when water and oil are soaked, a nonmetal friction material on a centrifugal friction block is easy to damp and age when the descent control device is stored, the friction coefficient can be changed by chemical volatile gas and dust, unsafe hidden dangers are caused, and casualty accidents are caused to users due to the fact that the friction mechanism fails in the demonstration of using the descent control device at home and abroad. Therefore, the descent control device has the problems of reliability and safety.

The aim of the utility model is to design a capturing descent control device which has high reliability, constant human body descending speed control, water and oil resistance and is not influenced by various external environments during storage.

Disclosure of the invention

In order to achieve the purpose, the utility model adopts a novel escapement mechanism to control the rotating speed of a planetary transmission gear train in the descent control device, thereby achieving the aim of uniform descent of the human body, and the escape type descent control device comprises auxiliary components such as a rope clamping wheel component, a planetary transmission gear train, an escapement mechanism component, an upper fixing plate, a lower fixing plate and the like; the rope clamping wheel assembly is formed by punching and riveting an alloy steel plate, and three planetary gears are fastened towards one side of the escapement mechanism; the inner gear ring of the planetary transmission gear train is punched and manufactured by alloy steel plates and is riveted into a whole in multiple layers, and the planetary transmission gear train is characterized in that a central gear of the planetary gear train is fastened on an escapement wheel, the escapement wheel and a vertical gear in the escapement mechanism are isosceles triangles, the number of teeth can be changed between 6 teeth and 10 teeth according to the requirement of the rotating speed, the escapement wheel is manufactured by multiple layers of alloy steel plates and is fastened together by rivets, lightening holes are formed in the escapement wheel and a slip component, the phenomenon that multiple wheel pieces break the teeth simultaneously in the impulse transmission of the escapement wheel and the slip component manufactured in the way can not occur, the safety of the escapement mechanism is ensured, the upper end and the lower end of the escapement wheel are provided with two groups of roller type slip components, each roller type slip component comprises a roller, an upper clamping plate, a lower clamping plate, a rolling shaft, a heat dissipation ring, a wear-resistant sheet and rivets, all the components are riveted into a whole by the rivets and the clamping plates, the middle of the wear-resistant sheet is used for the upper clamping plate and the rotating shaft to increase the friction area of the rotating shaft, the lower end of the slip rotating shaft is fastened with the lower fixing plate, and the upper end of the slip rotating shaft is riveted with the gear ring. The roller type slip assembly can be configured by selecting 2-4 groups according to the requirements of rotating speed, moment and the like to be controlled; the inner gear ring is fastened by the upper fixing plate and the lower fixing plate through the riveting column and is positioned in the middle of the two fixing plates, the centers of the rope clamping wheel assembly, the central gear and the upper fixing plate and the lower fixing plate are all provided with holes for a central shaft to pass through, the escape wheel also rotates by taking the shaft as the center, and the outer shell of the upper fixing plate and the outer shell of the lower fixing plate are fastened for dust prevention; the rope for bearing the weight of a human body is fixed by the rope clamping wheel and can rotate along the positive and negative directions of the rope clamping wheel to complete the function of moving up and down, safety belts for fastening the human body are fixed at the two ends of the rope, when the rope is used, one end of the steel rope is grounded, the other end of the steel rope just returns to an upstairs initial point to escape, the ropes with different lengths can be fastened at the two ends of the rope for fixing the human body, and the rope can be conveniently operated and used by people on different floors.

After the novel escapement mechanism is adopted, the phenomenon of out-of-control slipping caused by wetting, aging, oil staining and the like of a control part of the descent control device is solved, all transmission mechanisms and parts are made of alloy steel materials, the influence of the outside world is extremely small during storage, and the reliability and the safety of the descent control device are greatly improved.

(IV) description of the drawings

Fig. 1 is a structural sectional view of an embodiment of the escape-type descent control device of the present invention.

(V) detailed description of the preferred embodiments

The constant-speed descent control device shown in fig. 1 comprises a rope clamping wheel assembly (23), a planetary transmission gear train, an escapement mechanism assembly, an upper fixed plate (3), a lower fixed plate (16) and a shell (1). The two shells are fastened on two fixing plates by screws (2), a planet wheel (22) in a planet transmission gear train is fastened on one surface of a rope clamping wheel component (23) facing an escapement mechanism by a rotating shaft of the planet wheel (22), the planet wheel (22) is meshed with a central wheel (15) of an inner gear ring (7), the central wheel (15) is fastened at the center of the escapement wheel (13), the middle part of the central wheel is provided with a hole for a central shaft (18) to pass through, the inner gear ring (7) which is manufactured by stamping alloy steel plates and riveted into a whole in multiple layers is fastened by a plurality of riveting columns (8) and (6), the inner gear ring is riveted by a lower fixing plate and fixed by the screws (2) and is positioned at the middle parts of the two fixing plates, a rope clamping wheel component (23) which is formed by stamping and riveting the alloy steel plates is arranged above the inner gear wheel clamping wheel, the rope clamping wheel can prevent a steel wire rope (4) from sliding in a wheel groove, three grooved wheels (5) are used for guiding the steel wire rope, and the escapement mechanism is arranged below the inner gear ring (7), the escapement wheel (13) tooth is made of a plurality of alloy steel plates and is fastened by a plurality of rivets (14), the gear tooth is in an isosceles triangle shape and is convenient for forward and reverse rotation, the tooth number can be changed between 6-12 teeth according to the requirement of the rotating speed, roller type slip components (21) are arranged at the upper end and the lower end of the escapement wheel, each component consists of a roller (11), an upper clamping plate (9), a lower clamping plate (9), a roller shaft (12), wear-resistant plates (10), a radiating ring and a riveting shaft, the radiating ring is positioned between the two wear-resistant plates and is fastened into a whole by the riveting shaft and the roller shaft, the roller can rotate, a gyration hole is formed in the middle of each component and is sleeved on a fixed shaft (17) between the upper fixed plate and the inner gear ring, and the roller type slip components can be configured by 2-4 groups according to the requirements of the rotating speed, the torque and the like which need to be controlled. An escape wheel fastened by the rope clamping wheel component and the central gear is evenly sleeved on a central shaft (18), and two ends of the central shaft are fixed and limited by an upper fixing plate and a lower fixing plate.

When the escape wheel is used, the escape wheel descent control device is fixed through the hanging hooks (20) fastened on the bearing columns (19) on the upper fixing plate and the lower fixing plate, the safety belt is sleeved on a human body, the rope wheel clamping component is rotated through the steel wire rope in the descending process of the escape person, the central wheel rotates in an accelerated manner when the planet wheel rotates around the central wheel, the escape wheel fastened with the central wheel rotates synchronously with the central wheel, the escape wheel teeth collide with the rollers in the roller type slip component to push the roller type slip component to rotate reversely, so that the escape wheel teeth collide with the second roller, and the rotating speed of the escape wheel is controlled through continuous collision in the rotation, so that the rotating speed of the rope wheel clamping is controlled, and the aim of controlling the escape person to descend at a constant speed is achieved.

Claims (1)

1. The utility model provides an escape type ware that slowly falls, by pressing from both sides auxiliary members such as rope sheave subassembly, planetary transmission train, escapement subassembly and upper and lower fixed plate and constitute its characterized in that: the central gear of the planetary gear train is fastened on an escape wheel, escapement gear teeth in an escapement mechanism are isosceles triangles, the number of teeth can be changed between 6 teeth and 10 teeth according to the requirement of rotating speed, the escape wheel is made of multiple layers of alloy steel plates and is fastened together by rivets, two groups of roller type slip assemblies are arranged at the upper end and the lower end of the escape wheel, each roller type slip assembly comprises a roller, an upper clamping plate, a lower clamping plate, a rolling shaft, a radiating ring, a wear-resistant sheet and a rivet, all the components are riveted into a whole by the rivets and roller shafts, and a rotary hole is formed in the middle of the wear-resistant sheet and used for a slip rotating shaft to pass through.

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