CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a 371 application of International Application No. PCT/CN2017/107251, filed on Oct. 23, 2017, which claims priority to Chinese Patent Application No. 201710446157.0, filed on Jun. 14, 2017, the entire disclosures of both of which are hereby incorporated by reference in their entireties.

TECHNICAL FIELD

The present disclosure relates to an escape gear, and more specifically relates to a smart emergency escape backpack for a high-rise building.

BACKGROUND

Conventionally, upon a fire emergency occurring to a high-rise building, it is difficult to rescue persons in high stories. As people in higher stories can hardly be rescued by conventional fire protection equipment; they can only rely on themselves for rescue. With more and more high-rise buildings emerging, a personal self-escape gear applicable for high-rise buildings is in urgent need. For example, the invention patent application No. CN201610673055.8, published on Feb. 22, 2017, discloses a controlled descent emergency escape apparatus, comprising: a housing including a front anchor plate and a rear anchor plate which are arranged in parallel; a controlled descent wheel pivoted between the front anchor plate and the rear anchor plate; a cable wound around the outer edge of the controlled descent wheel; a cable guiding mechanism disposed above the controlled descent wheel, the cable guiding mechanism connecting the upper portions of the front and rear anchor plates, one end of the cable being fixed on the controlled descent wheel, the free end of the cable penetrating through the cable guiding mechanism; and further a junction plate securely connected with the outer side of the rear anchor plate, wherein the controlled descent emergency escape apparatus is anchored inside a customized backpack via the junction plate. The controlled descent wheel comprises a rotating body and a speed reduction mechanism provided at a side portion of the rotating body, and a controlled descent mechanism being provided inside the rotating body, the rotating body and the controlled descent mechanism being connected via the speed reduction mechanism. The controlled descent mechanism comprises a rotating shaft and a centrifugal arm, the centrifugal arm and the rotating shaft being perpendicular to each other. A centrifugal slide block is provided on the centrifugal arm. The rotating shaft is fitted to the front and rear anchor plates and the end cap of the rotating body via bearings. The speed reduction mechanism includes a center gear, a planetary gear, and an outer ring gear, wherein the center gear is disposed at the center of the planetary gear, the outer ring gear is provided at the outer edge of the planetary gear, the center gear is securely connected with the rotating shaft, the planetary gear is pivoted to the outer side of the end cap of the rotating body, and the outer ring gear is secured on the outer sidewall of the rotating body. The radian of the outer edge of the centrifugal slide block is matched with the median of the inner wall of the rotating body; a lap of guide convex ring is provided on the inner wall of the rotating body; and a recessed groove fitted to the guide convex ring is provided at the outer edge of the centrifugal slide block. However, the controlled descent emergency escape apparatus disclosed above cannot be timely taken up such that it can only be used by one person for one time. Further, it is impossible to equip such an apparatus for each person in a high-rise building. Therefore, this drawback limits promotion and application of such an emergency escape apparatus, which also increases use costs.

SUMMARY

In an effort to overcome the drawbacks in the prior art, the present disclosure provides a smart emergency escape backpack which is easy to take up, safe and reliable, and may be used repeatedly by multiple persons.

A smart emergency escape backpack according to the present disclosure comprises a harness bound to a user and a controlled descent mechanism; wherein the controlled descent mechanism includes an anchor support, a hub mounted on the anchor support, and a centrifugal speed reduction damper fitted with the hub, a cable being wound around the hub; wherein a cable take-up actuating mechanism is further provided on the anchor support, and the cable take-up actuating mechanism includes an electric motor, a transmission structure connected with the electric motor, and a synchronous wheel connected with the transmission mechanism, the synchronous wheel actuating the hub to rotate reversely.

In the smart emergency escape backpack, a cartridge battery is further provided on the anchor support, the battery being electrically connected with the electric motor, one side of the anchor support being provided with a battery plug socket, the battery being plugged in the battery plug socket.

In the smart emergency escape backpack, the transmission mechanism is a timing belt, and the synchronous wheel is a timing pulley, the electric motor being connected with the timing pulley via the timing belt.

In the smart emergency escape backpack, an accommodation cavity is formed on the anchor support, the transmission mechanism and the synchronous wheel being mounted in the accommodation cavity.

In the smart emergency escape backpack, the centrifugal speed reduction damper comprises a rotating spindle, centrifugal damping blocks symmetrically disposed, guide rods fixedly connected with the centrifugal damping blocks, and a hollow guiding conduit connected vertically and securely to the spindle, the guide rods being respectively inserted from two ends of the hollow guiding conduit, a spring being disposed between the two guide rods, the spring being disposed in the hollow guiding conduit, such that when the spindle rotates, the centrifugal damping blocks abut against the inner wall of the hub under the action of a centrifugal force.

In the smart emergency escape backpack, a damping chamfer is formed on each of the centrifugal damping blocks, a damping groove is formed on the inner wall of the hub, and the damping chamfers and the sidewall of the damping groove are in fricative contact.

In the smart emergency escape backpack, the hub actuates the spindle to rotate via a planetary gear transmission mechanism, the spindle driving the centrifugal damping blocks to rotate, the rotating direction of the centrifugal damping blocks is contrary to the rotating direction of the hub, the synchronous wheel being fixed on the spindle.

In the smart emergency escape backpack, a cable take-up and pay-off guiding mechanism, the guiding mechanism including a first guide roller set and a second guide roller set which are arranged perpendicular to each other, the first guide roller set and the second guide roller set respectively including two guide rollers, wherein the diameter of the guide roller, around which the cable is bent and wound in the first guide roller set, is greater than diameters of other guide rollers.

In the smart emergency escape backpack, a travel switch electrically connected with the cable take-up actuating mechanism is further provided on the anchor support, the free end of the cable being provided with an expanded portion, the expanded portion snap-acting on the travel switch.

In the smart emergency escape backpack, the travel switch comprises a hollow base and a pull rod inserted into the base, an electrical contact being provided on the base, the electrical contact being bulged into the hollow cavity of the base, an electrically conducting ring being provided on the portion of the pull rod which is inserted into the hollow cavity of the base, the electrically conducting ring being in contact with the electrical contact, the pull rod being provided with a through-hole, the cable passing through the through-hole, the expanded portion pushing the pull rod to reset.

In the smart emergency escape backpack, a locating mechanism is provided on the base; the locating mechanism includes a bead projecting into the hollow cavity, a spring pushing the bead, and a thread abutting against the spring; and a locating groove is provided on each of the pull rod and the electrically conducting ring, respectively, the bead being snapped into the locating grooves.

Compared with the prior art, the smart emergency escape backpack according to the present disclosure offers the following advantages: with the cable take-up actuating mechanism provided by the present disclosure, the electric motor may automatically take up the cable so as to recover the controlled descent mechanism to the initial state, thereby facilitating repeated use by multiple persons. Therefore, with a certain number of the smart emergency escape backpacks as disclosed herein to a high-rise building, it suffices for repeated emergency escape use for multiple persons. Besides, the emergency escape backpack as disclosed is easy for collective management and purchase and is easy for being stored in a specific area, thereby facilitating promotion and use.

