CN220664575U - Automatic ladder stand device for emergency rescue of elevator - Google Patents

Abstract

The utility model discloses an automatic ladder stand device for emergency rescue of an elevator, which comprises two transmission supporting boxes, wherein a connecting shaft is rotatably arranged between the two transmission supporting boxes, a transmission shaft is rotatably arranged in the transmission supporting boxes, a torsion spring is sleeved on the transmission shaft, a first conical gear is fixedly arranged on the transmission shaft, second conical gears are fixedly arranged at two ends of the connecting shaft, the second conical gears are matched with the first conical gears, a pedal is fixedly arranged on the connecting shaft, and a fixing foot is fixedly arranged at one side of the transmission supporting box and close to the edge of the rear side of the transmission supporting box. When the device is designed to be in a vertical upward state without using the pedal, the device is parallel to the transmission supporting box, the occupation of the internal space of the elevator car can be reduced as much as possible, meanwhile, the pedal is driven to automatically rotate and spread by adopting the torsion spring as power, a large number of batteries and electric pushing devices are not required to be additionally arranged, and the cost of the device can be effectively reduced.

Description

Automatic ladder stand device for emergency rescue of elevator

Technical Field

The utility model relates to an automatic ladder stand device, in particular to an automatic ladder stand device for emergency rescue of an elevator.

Background

Although the safety design of the current elevators is more and more perfect, the situation that the elevator catches passengers due to faults still cannot be avoided, when the passengers are caught in the elevators and cannot get in touch with the outside, serious consequences can be caused, and more elevators are internally provided with automatic ladder climbing devices for emergency rescue.

The utility model discloses an automatic cat ladder device of elevator emergency rescue of publication No. CN216004861U, including car, device case and cat ladder device, the device case is located on the car back lateral wall, and leave the interval between left lateral wall and the car left side wall of device case, vertically equipartition has a plurality of recesses on the left side wall of car, the left car top of device case is equipped with the window of fleing, the cat ladder device is located in the device case, the cat ladder device includes montant, a plurality of footboard and drive arrangement, top and bottom in the device case are equipped with the slide rail, the top and the bottom of montant are equipped with the slider, slider sliding connection is in the slide rail, the left side wall of device case is equipped with a plurality of through-holes that correspond with the recess position, a plurality of footboard are connected on the montant and its right-hand member and through-hole overlap joint one by one, drive arrangement is located the montant right side and is connected with the cat ladder device. According to the utility model, the automatic ladder stand device is arranged in the lift car, so that trapped personnel can escape from the lift car through the ladder stand device when the lift fails, and the emergency rescue effect is realized.

The problems are found when the conventional automatic ladder stand device for elevator emergency rescue is used, firstly, the internal space of an elevator is originally narrow, an electric push rod, a ladder stand, a sliding component and the like are arranged in the elevator, a large amount of space can be occupied, secondly, a power supply box is used for supplying power by using a storage battery, and the push rod and an electric suction cup are required to consume a large amount of power, so that a plurality of groups of storage batteries are required to be arranged, and the problem of high cost is solved.

Disclosure of Invention

The utility model aims to provide an automatic ladder stand device for emergency rescue of an elevator, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic cat ladder device of elevator emergency rescue, includes two transmission supporting boxes, two the connecting axle is installed in the rotation between the transmission supporting box, the transmission shaft is installed in the transmission supporting box rotation, the torsional spring has been cup jointed on the transmission shaft, fixed mounting has first bevel gear on the transmission shaft, connecting axle both ends fixed mounting has second bevel gear, second bevel gear and first bevel gear mutually support, fixed mounting has the footboard on the connecting axle.

Preferably, a fixed foot is fixedly arranged at one side of the transmission supporting box and near the rear edge.

Preferably, an electromagnet is fixedly arranged on one side of the transmission supporting box, a limiting hole is formed in the transmission shaft, and the limiting hole is matched with the electromagnet.

Preferably, a spring connecting sheet is fixedly arranged on the transmission shaft, the spring connecting sheet is fixedly connected with one end of the torsion spring, and the other end of the torsion spring is fixedly connected with the transmission supporting box.

Preferably, an anti-skid groove is formed on the pedal.

Preferably, a corner at the rear of the pedal is rounded.

Compared with the prior art, the utility model has the beneficial effects that:

1. when not in use, the pedal is in a vertical upward state and is parallel to the transmission supporting box, as shown in the state of fig. 2, so that the occupation of the internal space of the elevator car can be reduced as much as possible.

2. The torsion spring is adopted as power to drive the pedal to automatically rotate and spread, a large number of batteries and electric pushing devices are not required to be additionally arranged, and the cost of the device can be effectively reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the transmission support box of the present utility model in a semi-sectional overall structure;

FIG. 3 is an enlarged view of FIG. 2A in accordance with the present utility model;

FIG. 4 is a schematic view of the pedal structure of the present utility model;

fig. 5 is a schematic view of the structure of the present utility model when used in an elevator car.

In the figure: 1. a transmission supporting box; 101. a fixed foot; 102. an electromagnet; 2. a transmission shaft; 201. a first bevel gear; 202. a spring connecting piece; 203. a torsion spring; 204. a limiting hole; 3. a pedal; 301. a connecting shaft; 302. a second bevel gear; 303. an anti-skid slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides an automatic cat ladder device of elevator emergency rescue, includes two transmission supporting boxes 1, rotates between two transmission supporting boxes 1 and installs connecting axle 301, and transmission supporting box 1 rotation is installed transmission shaft 2, has cup jointed torsional spring 203 on the transmission shaft 2, and fixed mounting has first conical gear 201 on the transmission shaft 2, and connecting axle 301 both ends fixed mounting has second conical gear 302, and second conical gear 302 and first conical gear 201 mutually support, and fixed mounting has footboard 3 on the connecting axle 301.

In this embodiment, through fixing the transmission supporting box 1 on the inner wall of the elevator car, the pedal 3 is in a vertically upward state and parallel to the transmission supporting box 1 when not in use, as shown in fig. 2, the occupation of the space inside the elevator car can be reduced as much as possible, after the elevator breaks down and fails, the limiting device on the transmission supporting box 1 can fail, at this moment, the transmission shaft 2 can rotate randomly, the transmission shaft 2 can rotate under the driving of the torsion spring 203 to drive the first bevel gear 201 to rotate, the first bevel gear 201 rotates to drive the second bevel gear 302 to rotate, thereby driving the connecting shaft 301 to rotate, the connecting shaft 301 can drive the pedal 3 to rotate ninety degrees, so that the pedal 3 and the transmission supporting box 1 are mutually perpendicular, as shown in the state of fig. 1, at this moment, the pedal 3 can form a ladder stand, the pedal 3 is driven by adopting the torsion spring 203 as power, and a large number of batteries and electric pushing devices are not needed to be additionally configured, and the device cost is effectively reduced.

In order to achieve the purpose of limiting the rotation of the transmission shaft 2, the device is realized by adopting the following technical scheme: the fixed foot 101 is fixedly arranged on one side of the transmission supporting box 1 and near the rear edge, the electromagnet 102 is fixedly arranged on one side of the transmission supporting box 1, the limiting hole 204 is formed in the transmission shaft 2, and the limiting hole 204 is matched with the electromagnet 102.

The transmission supporting box 1 can be fixed on the inner wall of the elevator car by using bolts to penetrate through the fixing legs 101, the electromagnet 102 is matched with the limiting holes 204, the electromagnet 102 is connected with the power supply of the elevator car, the electromagnet 102 can be inserted into the limiting holes 204 during normal power supply to limit the rotation of the transmission shaft 2, the electromagnet 102 can be moved out of the limiting holes 204 after power is off, the limitation of the transmission shaft 2 is relieved, and the electromagnet 102 is preferably HIO-0420S-6V6 micro-type electromagnet.

In order to achieve the purpose that the pedal 3 can only rotate ninety degrees, the device is realized by adopting the following technical scheme: the transmission shaft 2 is fixedly provided with a spring connecting sheet 202, the spring connecting sheet 202 is fixedly connected with one end of a torsion spring 203, the other end of the torsion spring 203 is fixedly connected with the transmission supporting box 1, the pedal 3 is provided with an anti-skid groove 303, and one corner of the rear of the pedal 3 is rounded.

Can drive the spring coupling piece 202 rotation through torsional spring 203, the spring coupling piece 202 rotation can drive transmission shaft 2 and rotate, because the fillet is done to the one corner behind the footboard 3, and when the device was installed on elevator car inner wall, footboard 3 can laminate the car inner wall, makes footboard 3 only can the rotation range only ninety degrees, and anti-skidding groove 303 can avoid stranded personnel to step on the slippage on footboard 3.

The working principle and the using flow of the utility model are as follows: when the elevator is in fault, when the power supply in the elevator car is blocked, the electromagnet 102 moves out of the limiting hole 204 after the power failure, the limit of the transmission shaft 2 is released, the torsion spring 203 drives the spring connecting piece 202 to rotate, the spring connecting piece 202 rotates to drive the transmission shaft 2 to rotate, the transmission shaft 2 rotates to finally drive the pedal 3 to rotate, the pedal 3 and the transmission supporting box 1 are perpendicular to each other, as shown in the state of fig. 1, a climbing ladder formed by the pedal 3 can be formed at the moment, and trapped personnel can climb out of an escape opening of the elevator car by stepping on the pedal 3.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an automatic cat ladder device of elevator emergency rescue, includes two transmission supporting boxes (1), its characterized in that: the two transmission supporting boxes (1) are rotatably provided with a connecting shaft (301), the transmission supporting boxes (1) are rotatably provided with a transmission shaft (2), the transmission shaft (2) is sleeved with a torsion spring (203), the transmission shaft (2) is fixedly provided with a first conical gear (201), two ends of the connecting shaft (301) are fixedly provided with a second conical gear (302), the second conical gear (302) is matched with the first conical gear (201), and the connecting shaft (301) is fixedly provided with a pedal (3).

2. An automatic ladder stand device for emergency rescue of an elevator according to claim 1, characterized in that: and a fixed foot (101) is fixedly arranged at one side of the transmission supporting box (1) and close to the rear edge.

3. An automatic ladder stand device for emergency rescue of an elevator according to claim 1, characterized in that: an electromagnet (102) is fixedly arranged on one side of the transmission supporting box (1), a limiting hole (204) is formed in the transmission shaft (2), and the limiting hole (204) is matched with the electromagnet (102).

4. An automatic ladder stand device for emergency rescue of an elevator according to claim 1, characterized in that: the transmission shaft (2) is fixedly provided with a spring connecting sheet (202), the spring connecting sheet (202) is fixedly connected with one end of a torsion spring (203), and the other end of the torsion spring (203) is fixedly connected with the transmission supporting box (1).

5. An automatic ladder stand device for emergency rescue of an elevator according to claim 1, characterized in that: an anti-skid groove (303) is formed in the pedal (3).

6. An automatic ladder stand device for emergency rescue of an elevator according to claim 1, characterized in that: and a corner at the rear of the pedal (3) is rounded.