CN111013030B

CN111013030B - High-rise escape speed reduction device

Info

Publication number: CN111013030B
Application number: CN201911262941.1A
Authority: CN
Inventors: 潘爱平; 张瀚文
Original assignee: Rizhao Qingchuang Intellectual Property Service Center
Current assignee: RIZHAO QINGCHUANG INTELLECTUAL PROPERTY SERVICE CENTER
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2021-03-26
Anticipated expiration: 2037-12-29
Also published as: CN107952182B; CN111013030A; CN107952182A

Abstract

The invention discloses a high-rise escape speed reduction device, which belongs to the field of lifesaving equipment and is characterized in that: comprises a winding drum, a rope, a base, a safety belt and a gear box; the main shaft and the box cover in the winding drum and the gear box are respectively fixed on the base; the end part of the rope is fixedly connected with a safety belt; the gear box is positioned at one end of the winding drum and comprises a gear, a connecting rod, a rocker, a fixed plate and a rack plate; an accelerating gear set and a decelerating gear set are arranged in the gear box, and the accelerating gear set and the decelerating gear set respectively consist of a series of duplicate gears and gears; a sliding block is arranged in the cavity of the second gear and is hinged with the rocker through a connecting rod; the reduction gear set comprises a series of duplicate gears and two gears, and the rack plate is positioned in the outer direction of the reduction gear set. Compared with the prior art have flee from characteristics fast, convenient to use.

Description

High-rise escape speed reduction device

Technical Field

The invention discloses divisional application of a high-rise building fire escape device (application number: 2017114775235), and relates to lifesaving equipment, in particular to a high-rise escape speed reducing device.

Background

Along with the rapid development of cities, residential buildings and office buildings are pulled out of the ground, the building fire escape problem is more and more emphasized by people, after high-rise buildings suffer from fire, the fire is easy to spread transversely and longitudinally, and the escape from stairs or a fire elevator is easy to be disordered along with a large amount of dense smoke, so that the trampling accident is caused.

At present, high-rise fire fighting mainly adopts modes such as scaling ladder, high-pressure water cannon fire extinguishing, helicopter fire extinguishing and the like, a fireman is difficult to go deep into a fire scene for rescue, and a large amount of physical power of the fireman is consumed in manual rescue, so that the success rate of rescue is reduced. Under the circumstances, the self-rescue ability of people trapped in the fire should be improved, and a fire escape tool is provided to help people trapped in the fire to save self, so that the fire escape tool is a necessary and effective escape means.

Disclosure of Invention

The technical task of the invention is to provide a high-rise escape speed reducing device aiming at the defects of the prior art.

The technical scheme for solving the technical problem is as follows: a high-rise escape speed reducing device is characterized in that: comprises a winding drum, a rope, a base, a safety belt and a gear box; the main shaft and the box cover in the winding drum and the gear box are respectively fixed on the base, and the invention is fixedly arranged beside the windowsill through the base; the end part of the rope is fixedly connected with a safety belt; the winding drum comprises a drum body structure and circular side plates fixed at two ends of the drum body structure, and one end of the rope is fixed and wound on the drum body structure of the winding drum; the gearbox is positioned at one end of the winding drum and comprises a box cover, a shell structure formed by surrounding a side plate of the winding drum and an internal structure of the shell structure, wherein the box cover is a cylindrical shell structure with an opening at the inner end coaxial with the winding drum; the spindle is arranged at the axes of the winding drum and the gear box, the spindle is fixedly connected with the box cover, and the winding drum can rotate around the spindle; the back plate is respectively fixedly connected with the main shaft and the box cover; the gear box comprises a gear, a connecting rod, a rocker, a fixed plate and a rack plate; an internal gear is fixedly connected to the outer side face of the side plate where the gear box is located, the internal gear is coaxial with the main shaft, the fixing plate is located in the position, close to the inner side, in the cavity of the internal gear, and the fixing plate is fixedly connected with the main shaft; an accelerating gear set and a decelerating gear set are arranged in the gear box, and the accelerating gear set and the decelerating gear set respectively consist of a series of duplicate gears and gears; the accelerating gear set is positioned in the gear box and close to the inner side, and the decelerating gear set is positioned in the gear box and close to the outer side; the accelerating gear set comprises a series of duplicate gears and a gear, wherein the gear is positioned at the tail end of the accelerating gear set; the big gear of the previous duplicate gear is meshed with the small gear of the next duplicate gear in the acceleration gear set, the diameter of the big gear of the previous duplicate gear is larger than that of the small gear of the next duplicate gear, the small gear of the first gear is meshed with the internal gear, and the big gear of the last duplicate gear is meshed with the second gear; a strip-shaped cavity moving along the radial direction of the second gear is arranged in the second gear, a sliding block is arranged in the cavity, strip-shaped openings are respectively arranged in the inner side and the outer side of the cavity, and the widths of the two strip-shaped openings are smaller than the width of the sliding block; the inner side of the sliding block is fixedly provided with a connecting block, the connecting block extends out from an opening at the inner side of the sliding block, the extending end is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with a rocker, one end of the rocker is provided with a horizontal hole, a horizontal shaft penetrates through the horizontal hole, the rocker can rotate around the horizontal shaft, and the other end of the rocker is provided with a balance weight; a first sleeve is arranged in the outer side direction of the second gear, the first sleeve is nested on a shaft where the second gear is located, a spring is arranged between the first sleeve and the second gear, a push rod is further arranged between the first sleeve and the sliding block, and two ends of the push rod are respectively hinged with the first sleeve and the sliding block; the reduction gear set comprises a series of duplicate gears and two gears, wherein the two gears are respectively positioned at the head end and the tail end of the reduction gear set; the third gear and the first gear are coaxial, and the first gear and the third gear are fixedly connected with the gear shaft on which the third gear and the third gear are arranged; in the gear pair meshed in the reduction gear set, the diameter of the previous duplex gear or gear is smaller than that of the next duplex gear or gear; the pinion of the duplicate gear and the third gear in the reduction gear set use non-standard gears, and each gear only has one or a plurality of teeth; the rack plate is positioned in the outer side direction of the reduction gear set and comprises a second sleeve, a horizontal plate and a rack; the second sleeve is positioned on the outer side of the first sleeve and is nested on a shaft where the second gear is positioned; the inner end of the horizontal plate is fixedly connected with the second sleeve, the outer end of the horizontal plate is fixedly connected with the outer end of the rack, and a certain included angle is formed between the horizontal plate and the rack; the box cover is provided with a hole for penetrating the horizontal plate and the rack, and the outer ends of the horizontal plate and the rack penetrate out of the hole and are exposed outside the gear box; the rack plate is made of elastic material; the outer end of the fourth gear is provided with a threaded rod which is coaxial with the fourth gear and is fixedly connected with the fourth gear, and the thread of the threaded rod is meshed with the rack.

Compared with the prior art, the invention has the following outstanding beneficial effects:

1. the speed is limited by adopting a non-friction mode, and the equipment abrasion is small;

2. the use is convenient;

3. the falling speed is fast first and slow later, and the escape can be fast.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention.

Fig. 2 is a side view of embodiment 1 of the present invention.

Fig. 3 is a plan view of embodiment 1 of the present invention.

Fig. 4 is a schematic view of the accelerating gearset in the gearbox of the present invention.

Fig. 5 is a schematic view of the structure of a reduction gear set in the gear box of the present invention.

FIG. 6 is a schematic view of the deployment of the gears within the gear box of the present invention.

FIG. 7 is a cross-sectional view of the gear box of the present invention.

Fig. 8 is a schematic structural view of embodiment 2 of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the detailed description. For convenience of description, the direction toward the spool in the gear box is set as the inner side, and the opposite direction is set as the outer side.

In embodiment 1, as shown in fig. 1 to 7, the present invention includes a spool, a rope 4, a back plate 7, a seat belt 8, and a gear box.

The front surface of the back plate 7 is provided with a safety belt 8, the back plate 7 is tied on the back of a human body through the safety belt 8, and the back surface of the back plate 7 is provided with a winding drum and a gear box.

The winding drum comprises a drum body structure and circular side plates 5 fixed at two ends of the drum body structure, one end of the rope 4 is fixed and wound on the drum body structure of the winding drum, and the other end of the rope 4 is used for being connected with an indoor fixed object. The gearbox is positioned at one end of the winding drum and comprises a case cover 2 and a shell structure and an internal structure, wherein the shell structure is formed by enclosing a side plate 5 of the winding drum, and the case cover 2 is a cylindrical shell structure with an opening at the inner end and the same axis as the winding drum. The reel and the gear box are provided with a spindle 6 at the axis, the spindle 6 is fixedly connected with the box cover 2, and the reel can rotate around the spindle 6. The back plate 7 is respectively fixedly connected with the main shaft 6 and the box cover 2.

The gear box comprises a gear, a connecting rod 12, a rocker 13, a fixed plate 15 and a rack plate 1.

The gear box is fixedly connected with an internal gear 3 on the outer side surface of the side plate 5, the internal gear 3 is coaxial with the main shaft 6, the fixing plate 15 is positioned at the position close to the inner side in the cavity of the internal gear 3, and the fixing plate 15 is fixedly connected with the main shaft 6. An accelerating gear set and a decelerating gear set are arranged in the gear box, and the accelerating gear set and the decelerating gear set are respectively composed of a series of duplicate gears and gears. The dual gear comprises two gears which are fixedly connected and coaxial and have different sizes. For ease of description, the prefix "gear" two word in this document refers specifically to a non-duplex external gear. Wherein the accelerating gear set is positioned in the gear box at a position close to the inner side, and the decelerating gear set is positioned in the gear box at a position close to the outer side. The accelerating gear set comprises a series of duplicate gears and a gear 10, wherein the gear 10 is located at the tail end of the accelerating gear set, the gear is set to be a second gear, and the first duplicate gear in the accelerating gear set is set to be a first gear 9. The big gear of the previous duplicate gear is meshed with the small gear of the next duplicate gear in the acceleration gear set, the diameter of the big gear of the previous duplicate gear is larger than that of the small gear of the next duplicate gear, so that the acceleration effect can be achieved, the small gear of the first duplicate gear 9 is meshed with the inner gear 3, and the big gear of the last duplicate gear is meshed with the second gear 10.

The second gear 10 is internally provided with a strip-shaped cavity 27 which runs along the radial direction of the second gear 10, a sliding block 11 is arranged in the cavity 27, the sliding block 11 can slide in the cavity 27 along the radial direction of the second gear 10, the inner side and the outer side of the cavity 27 are respectively provided with a strip-

shaped opening

28 and 26, and the width of the two strip-

shaped openings

28 and 26 is smaller than that of the sliding block 11. The inner side of the sliding block 11 is fixedly provided with a connecting block 29, the connecting block 29 extends out from an opening 28 on the inner side of the sliding block 11, the extending end is hinged with one end of the connecting rod 12, the other end of the connecting rod 12 is hinged with the rocker 13, one end of the rocker 13 is provided with a horizontal hole 31, a horizontal shaft 32 passes through the horizontal hole 31, the rocker 13 can rotate around the horizontal shaft 32, and the other end of the rocker 13 is provided with a counterweight 14. When the second gear 10 rotates, the rocker 13 is driven to swing through the action of the connecting rod 12.

The first sleeve 23 is arranged in the outer side direction of the second gear 10, the first sleeve 23 is nested on a shaft where the second gear 10 is located, a spring 24 is arranged between the first sleeve 23 and the second gear 10, the first sleeve 23 is ejected out in the outer side direction under the action of the spring 24, a push rod 25 is further arranged between the first sleeve 23 and the slider 11, two ends of the push rod 25 are respectively hinged with the first sleeve 23 and the slider 11, when the first sleeve 23 moves in the inner side direction, the slider 11 is pushed in the direction away from the axis of the second gear 10 under the action of the push rod 25, after the slider 11 moves, the hinged part of the connecting block 29 and the connecting rod 12 also moves in the same direction, and therefore when the second gear 10 rotates, the rotating radius of the hinged end of the connecting rod 12 and the connecting block 29 is increased, and the swinging amplitude of the rocker 13 is increased.

The reduction gear set comprises a duplicate gear and two gears, wherein the two gears are respectively positioned at the head end and the tail end of the reduction gear set, the gear at the head end is set to be a third gear 16, and the gear at the tail end is set to be a fourth gear 17. The third gear 16 is coaxial with the first gear 9, and the first gear 9 and the third gear 16 are fixedly connected with a gear shaft on which the first gear 9 and the third gear 16 are arranged, so that the third gear 16 can be driven to rotate when the first gear 9 rotates. In the gear pair meshed in the reduction gear set, the diameter of the previous duplex gear or gear is smaller than that of the next duplex gear or gear, so that the reduction effect can be achieved. In order to achieve a larger transmission ratio, the pinions of the duplicate gears and the third gear 16 in the reduction gear set may use non-standard gears, i.e. only one or several teeth on each gear, so that after one rotation of the gear, the rotation angle of the latter gear can be reduced. So that the gear ratio of the reduction gear set can be increased.

The rack plate 1 is located at the outer side direction of the reduction gear set and comprises a second sleeve 21, a horizontal plate 20 and a rack 19. The second sleeve 21 is positioned outside the first sleeve 23 and is nested on the shaft of the second gear 10. The inner end of the horizontal plate 20 is fixedly connected with the second sleeve 21, the outer end of the horizontal plate 20 is fixedly connected with the outer end of the rack 19, and a certain included angle is formed between the horizontal plate 20 and the rack 19. The box cover 2 is provided with a hole 22 for passing through the horizontal plate 20 and the rack 19, and the outer ends of the horizontal plate 20 and the rack 19 penetrate through the hole and are exposed outside the gear box. The rack plate 1 is made of an elastic material and can deform to a certain degree after being subjected to external force.

The outer end of the fourth gear 17 is provided with a threaded rod 18 which is coaxial with and fixedly connected with the fourth gear, and the thread of the threaded rod 18 is meshed with the rack 19, so that the rack 19 can be driven to move in the horizontal direction when the threaded rod 18 rotates.

The working principle of the invention is as follows: after accidents such as fire disaster happen, the back plate 7 is tied to the back of a human body through the safety belt 8, the end part of the rope 4 is fixed indoors, for example, the rope is tied to objects which cannot fall out of a window such as a sickbed and a large cabinet, and then the rope can jump out of the window. When falling, the rope 4 drives the winding drum to rotate, the winding drum sequentially drives the first gear 9 and the third gear 16 to rotate through the inner gear 3 on the outer side surface of the winding drum, the first gear 9 drives the second gear 10 to rotate at a high speed through the accelerating gear set, and the connecting rod 12 drives the rocker 13 to swing at a high speed. When a certain force is applied to the rocker 13 through the connecting rod 12, the rocker 13 swings at a constant period, and the gears rotate at a stable speed, so that the human body can fall at a constant speed without free-fall movement, and the escape personnel are prevented from being injured by falling. The swing frequency of the rocker 13 is inversely proportional to the swing amplitude of the rocker 13, i.e. the larger the swing amplitude is, the lower the swing frequency of the rocker 13 is, so that the rotating speed of each gear is reduced, and finally the falling speed of the person is reduced.

The third gear 16 drives the rack 19 to slowly move towards the inner side through the reduction gear set and the threaded rod 18, the second sleeve 21 is driven to move towards the inner side through the horizontal plate 20, the second sleeve 21 gradually approaches to the first sleeve 23, when a person is about to fall on the ground, the second sleeve 21 abuts against the first sleeve 23 and pushes the first sleeve 23 to move towards the inner side, the swinging amplitude of the rocker 13 is increased through the action of the push rod 25, the slider 11, the connecting block 29 and the connecting rod 12 in sequence, the falling speed of a human body is reduced, the human body falls on the ground at a slow speed, and falling injuries are prevented. Personnel are at the in-process of whereabouts, and the whereabouts speed is very fast in the beginning, can accelerate the speed of fleing, and when will touch the ground, the speed slows down, prevents to fall and hinders.

Since the outer section of the rack plate 1 is exposed to the outside of the gear housing, the rack plate 1 has a certain elasticity, and the rack 19 can be separated from the threaded rod 18 by pressing the outer end of the rack plate 1 with a hand, so that the position of the rack plate 1 can be freely adjusted in the horizontal direction. In the time of the in-service use, the floor height of difference is different, and the distance of whereabouts is also different, for guaranteeing can push sleeve 23 No. two sleeves 21 when falling to the ground soon, will adjust rack plate 1 to different positions according to the floor of difference.

In embodiment 2, as shown in fig. 8, this embodiment includes a winding drum, a rope 4, a base 30, a safety belt 8 and a gear box, wherein the winding drum, the rope 4 and the gear box are the same as those in embodiment 1, and the description of this embodiment is omitted.

The main shaft 6 and the box cover 2 in the winding drum and the gear box are respectively fixed on a base 30, and the invention is fixedly arranged beside a windowsill through the base 30 at ordinary times. The end of the rope 4 is fixedly connected with a safety belt 8, and the rope 4 is fixed on the body through the safety belt 8.

When an accident such as a fire occurs, the safety belt 8 is tied to the body and then jumps out of the window.

It should be noted that while the invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various obvious changes can be made therein without departing from the spirit and scope of the invention.

Claims

1. A high-rise escape speed reducing device is characterized in that: comprises a winding drum, a rope, a base, a safety belt and a gear box; the winding drum, the main shaft in the gear box and the box cover are respectively fixed on the base, and the device is fixedly arranged beside a windowsill through the base; the end part of the rope is fixedly connected with a safety belt; the winding drum comprises a drum body structure and circular side plates fixed at two ends of the drum body structure, and one end of the rope is fixed and wound on the drum body structure of the winding drum; the gearbox is positioned at one end of the winding drum and comprises a box cover, a shell structure formed by surrounding a side plate of the winding drum and an internal structure of the shell structure, wherein the box cover is a cylindrical shell structure with an opening at the inner end coaxial with the winding drum; the spindle is arranged at the axes of the winding drum and the gear box, the spindle is fixedly connected with the box cover, and the winding drum can rotate around the spindle; the back plate is respectively fixedly connected with the main shaft and the box cover; the gear box comprises a gear, a connecting rod, a rocker, a fixed plate and a rack plate; an internal gear is fixedly connected to the outer side face of the side plate where the gear box is located, the internal gear is coaxial with the main shaft, the fixing plate is located in the position, close to the inner side, in the cavity of the internal gear, and the fixing plate is fixedly connected with the main shaft; an accelerating gear set and a decelerating gear set are arranged in the gear box, and the accelerating gear set and the decelerating gear set respectively consist of a series of duplicate gears and gears; the accelerating gear set is positioned in the gear box and close to the inner side, and the decelerating gear set is positioned in the gear box and close to the outer side; the accelerating gear set comprises a series of duplicate gears and a gear, wherein the gear is positioned at the tail end of the accelerating gear set; the big gear of the previous duplicate gear is meshed with the small gear of the next duplicate gear in the acceleration gear set, the diameter of the big gear of the previous duplicate gear is larger than that of the small gear of the next duplicate gear, the small gear of the first gear is meshed with the internal gear, and the big gear of the last duplicate gear is meshed with the second gear; a strip-shaped cavity moving along the radial direction of the second gear is arranged in the second gear, a sliding block is arranged in the cavity, strip-shaped openings are respectively arranged in the inner side and the outer side of the cavity, and the widths of the two strip-shaped openings are smaller than the width of the sliding block; the inner side of the sliding block is fixedly provided with a connecting block, the connecting block extends out from an opening at the inner side of the sliding block, the extending end is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with a rocker, one end of the rocker is provided with a horizontal hole, a horizontal shaft penetrates through the horizontal hole, the rocker can rotate around the horizontal shaft, and the other end of the rocker is provided with a balance weight; a first sleeve is arranged in the outer side direction of the second gear, the first sleeve is nested on a shaft where the second gear is located, a spring is arranged between the first sleeve and the second gear, a push rod is further arranged between the first sleeve and the sliding block, and two ends of the push rod are respectively hinged with the first sleeve and the sliding block; the reduction gear set comprises a series of duplicate gears and two gears, wherein the two gears are respectively positioned at the head end and the tail end of the reduction gear set, the gear at the head end is a third gear, and the gear at the tail end is a fourth gear; the third gear and the first gear are coaxial, and the first gear and the third gear are fixedly connected with the gear shaft on which the third gear and the third gear are arranged; in the gear pair meshed in the reduction gear set, the diameter of the previous duplex gear or gear is smaller than that of the next duplex gear or gear; the pinion of the duplicate gear and the third gear in the reduction gear set use non-standard gears, and each gear only has one or a plurality of teeth; the rack plate is positioned in the outer side direction of the reduction gear set and comprises a second sleeve, a horizontal plate and a rack; the second sleeve is positioned on the outer side of the first sleeve and is nested on a shaft where the second gear is positioned; the inner end of the horizontal plate is fixedly connected with the second sleeve, the outer end of the horizontal plate is fixedly connected with the outer end of the rack, and a certain included angle is formed between the horizontal plate and the rack; the box cover is provided with a hole for penetrating the horizontal plate and the rack, and the outer ends of the horizontal plate and the rack penetrate out of the hole and are exposed outside the gear box; the rack plate is made of elastic material; the outer end of the fourth gear is provided with a threaded rod which is coaxial with the fourth gear and is fixedly connected with the fourth gear, and the thread of the threaded rod is meshed with the rack.