CN210933487U

CN210933487U - Speed reducing mechanism of high-rise fire bidirectional escape rescue device

Info

Publication number: CN210933487U
Application number: CN201921593208.3U
Authority: CN
Inventors: 韩现宝; 商海智; 刘玉芬; 刘颖
Original assignee: Jining Shengze Cryogenic Equipment Manufacture Co ltd
Current assignee: Jining Shengze Cryogenic Equipment Manufacture Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-07
Anticipated expiration: 2029-09-24

Abstract

A speed reducing mechanism of a high-rise fire bidirectional escape and rescue device comprises a shell and a chain cable, wherein a chain cable guide groove for the chain cable to penetrate through is fixedly formed in the top of the shell and one side surface of the shell respectively, a speed reducing chain wheel is rotatably arranged in the shell, and the chain cable penetrates through the chain cable guide groove and then is wound on the speed reducing chain wheel; the speed reduction chain wheel is coaxially provided with a linkage gear, one side of the linkage gear is engaged with a speed reduction gear, the speed reduction gear is arranged between the gear support plate and the inner wall of the shell, the speed reduction gear is coaxially and fixedly provided with a brake disc of a disc brake, the disc brake is fixedly connected with an external control wheel through a screw, and the disc brake is fixedly arranged on the inner wall of the shell. Simple structure, pure mechanical structure, safety and reliability, and low failure rate. Moreover, the operation is simple and easy to operate, and the operation can be rapidly carried out when dealing with emergency situations. The problem that the device is not easy to decelerate due to large acceleration in the falling process is solved, and the purpose of rescuing people or valuables by matching with a self-rescue device is achieved.

Description

Speed reducing mechanism of high-rise fire bidirectional escape rescue device

Technical Field

The utility model relates to a high-rise conflagration device of saving oneself especially relates to a reduction gears of personnel's fast speed reduction device.

Background

With the continuous development of the productivity level of the human society and the acceleration of the urbanization process, the buildings are continuously developed towards centralization and high-rise. Limited by the restriction of the existing fire fighting means, when a fire disaster or an earthquake occurs in a high-rise building, the fire fighting rescue cannot enter a high-rise area to implement effective rescue at the first time. Due to uncertainty of rescue time, when an emergency disaster occurs in a high-rise building, serious casualties and property loss often occur. This requires that high-rise buildings need a safe, quick, easy to operate device that can save oneself in time when a dangerous situation occurs. At present, the mode that traditional gear reduction mechanism and friction reduction mechanism combined together is mostly used on the market, and the general structure of these devices is complicated, in case when mechanical failure, gear card are dead etc. uncontrollable factor, can't in time effectual put into the rescue. If a fault occurs on the way of the person descending, the loss will be immeasurable. Therefore, a need exists for a safe, efficient, and fast speed reduction mechanism that provides a stable speed reduction effect during the fall of a descent control device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a speed reducing mechanism of a high-altitude fire self-rescue escape device.

The speed reducing mechanism of the high-rise fire bidirectional escape and rescue device comprises a fixed pulley, a chain cable and a speed reducing device, wherein a bidirectional ratchet wheel is fixedly arranged inside the fixed pulley, and the chain cable is arranged in a groove outside the fixed pulley; the chain cable penetrates through the inside of the quick-falling device, and the quick-falling device consists of a speed reducing mechanism and a safety cage; the outer wall of the speed reducing mechanism is a cavity shell, and chain cable guide grooves for penetrating chain cables are fixedly formed in the top of the shell and one side face of the shell respectively; guide chain wheels are rotatably arranged at the inner sides of the two chain cable guide grooves respectively, a speed reduction chain wheel is rotatably arranged at the middle position of the two guide chain wheels, and the chain cable penetrates through the chain cable guide grooves and then is wound on the guide chain wheels and the speed reduction chain wheel; the speed reduction chain wheel is coaxially provided with a linkage gear, one side of the linkage gear is engaged with a speed reduction gear, the speed reduction gear is coaxially and fixedly provided with a brake disc of a disc brake, the disc brake is fixedly connected with an external control wheel through a screw rod, and the disc brake is fixedly arranged on the inner wall of the shell; the safety cage is characterized in that a main shaft is arranged at the center of the safety cage, a plurality of safety buckles are fixedly arranged on the main shaft, a top plate is fixedly arranged at the upper end of the main shaft, a bottom plate is fixedly arranged at the lower end of the main shaft, the top plate is fixedly connected with the outer edge of the bottom plate through a plurality of guard bars, and the quick-falling device is connected with the safety cage through a hinge.

Further, the fixed pulley is vertically fixed on the outer edge of the top of the building body.

Further, the control wheel is arranged as a rope wheel.

Further, the chain cable and the quick-falling device are vertically arranged between two rows of balconies.

Furthermore, at least three guard bars are arranged.

Furthermore, at least two safety buckles are arranged.

Furthermore, two grooves are formed in the surface of the rope wheel, and a pull rope is fixedly arranged in each groove.

Furthermore, an evacuation access door is arranged on one side of the balcony, which is close to the quick-falling device.

Furthermore, one of the pull ropes is used for controlling the tightening of the disc brake, and the other pull rope is used for controlling the loosening of the disc brake.

Drawings

FIG. 1: formal cross-sectional schematic diagram of the device, fig. 2: a schematic right-view cross-section of the apparatus;

wherein: the brake device comprises a shell 1, a gear support plate 11, a chain guide groove 12, a speed reduction chain wheel 2, a linkage gear 21, a speed reduction gear 22, a disc brake 3, a control wheel 31, a pull rope 32 and a chain 4.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

Referring to fig. 1 and 2, the speed reducing mechanism of the two-way escape and rescue device for the high-rise fire comprises a shell 1 and a chain cable 4, wherein the shell 1 is hollow, and a gear support plate 11 is preferably arranged in the shell. The top of the shell 1 and one side surface of the shell are respectively and fixedly provided with a chain cable guide groove 12 for penetrating a chain cable, a speed reduction chain wheel 2 is rotationally arranged in the shell 1, the chain cable 4 penetrates through the chain cable guide groove 12 and then winds on the speed reduction chain wheel 2, and the speed reduction chain wheel is used for controlling the running speed of the chain cable wound on the speed reduction chain wheel. The reduction chain wheel 2 is coaxially provided with a linkage gear 21, and one side of the linkage gear 21 is engaged with a reduction gear 22. The reducing gear 22 is coaxially and fixedly provided with a brake disc of the disc brake 3, the novel tightening force to the brake disc is changed through the disc brake 3, the running speed of the reducing gear is changed accordingly, the rotating speed of the linkage gear and the rotating speed of the reducing chain wheel are changed, and the purpose of controlling the speed is achieved. The disc brake 3 is fixedly connected with an external control wheel 31 through a screw, and the external control wheel 31 is preferably provided with a rope pulley. The surface of the rope wheel is provided with two grooves, and the two grooves are respectively and fixedly provided with a pull rope 32. One of the pull cords 32 is used to control the tightening of the disc brake and the other pull cord 32 is used to control the loosening of the disc brake. The disc brake 3 is fixedly arranged on the inner wall of the housing 1.

The utility model discloses the theory of operation: when the disc brake is used, the braking force of the disc brake is changed by operating the control wheel arranged outside the outer shell, for example, the rope wheel with the pull rope is adopted, and the braking effect of the disc brake is controlled by pulling the two pull ropes. The disc brake transmits braking force to the linkage gear through a reduction gear which is coaxially arranged. After the linkage gear is subjected to braking force, the running speed is changed and the speed change is transmitted to the reduction gear which is coaxially arranged. Through the implementation of the mode, the purpose of controlling the descending speed of the self-rescue device can be achieved.

The utility model discloses an useful part: simple structure, pure mechanical structure, safety and reliability, and low failure rate. Moreover, the operation is simple and easy to operate, and the operation can be rapidly carried out when dealing with emergency situations. Meanwhile, the disc brake is matched with the speed reduction chain wheel, the problem that the device is not easy to reduce speed due to large acceleration in the falling process is solved, and the purpose of rescuing people or valuables by matching with a self-rescue device is achieved.

Claims

1. A speed reducing mechanism of a high-rise fire bidirectional escape and rescue device comprises a shell (1) and a chain cable (4), wherein the shell (1) is hollow, and is characterized in that a chain cable guide groove (12) for penetrating the chain cable is fixedly formed in the top of the shell (1) and one side surface of the shell (1) respectively, a speed reducing chain wheel (2) is rotatably arranged in the shell (1), and the chain cable (4) penetrates through the chain cable guide groove (12) and then is wound on the speed reducing chain wheel (2); the brake device is characterized in that a linkage gear (21) is coaxially arranged on the speed reduction chain wheel (2), one side of the linkage gear (21) is meshed with a speed reduction gear (22), a brake disc of the disc brake (3) is coaxially and fixedly arranged on the speed reduction gear (22), the disc brake (3) is fixedly connected with an external control wheel (31) through a screw rod, and the disc brake (3) is fixedly arranged on the inner wall of the shell (1).

2. The speed reducing mechanism of the high-rise fire bidirectional escape and rescue device is characterized in that a gear supporting plate (11) for supporting the speed reducing chain wheel (2), the linkage gear (21) and the speed reducing gear (22) is arranged inside the shell (1).

3. The decelerating mechanism of a bidirectional escape and rescue device for high-rise fire according to claim 1, wherein the control wheel (31) is configured as a rope wheel.

4. The speed reducing mechanism of the two-way escape and rescue device for the high-rise fire according to claim 3, wherein the surface of the rope wheel is provided with two grooves, and the two grooves are respectively fixedly provided with a pull rope (32).

5. The speed reducing mechanism of the two-way escape and rescue device for high-rise fire is characterized in that the pull rope (32) is used for controlling the tightening of the disc brake and controlling the loosening of the disc brake.