CN219567214U

CN219567214U - Elevator anti-falling emergency speed reducing device

Info

Publication number: CN219567214U
Application number: CN202223538714.7U
Authority: CN
Inventors: 史一博; 沈丹峰; 沈乾海; 尚全
Original assignee: Fodus Elevator Co ltd
Current assignee: Fodus Elevator Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-08-22
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses an elevator anti-falling emergency speed reducing device, which relates to the technical field of elevator safety equipment and comprises a lift car, wherein a closed wall body is arranged at the bottom of the lift car, four groups of C-shaped steel are fixedly connected to the inner side of the closed wall body, a high-pressure fan is fixedly connected to the bottom of the closed wall body, an expansion air bag is fixedly connected to the bottom end of the lift car, propelling mechanisms are fixedly connected to the upper end and the lower end of the interior of the lift car, connecting pipes are fixedly connected to the left end and the right end of the propelling mechanisms, and one end, far away from the propelling mechanisms, of each connecting pipe is fixedly connected with a speed reducing mechanism. According to the utility model, through the arranged propulsion mechanism and the reduction mechanism, the motor drives the transmission cylinder to push hydraulic oil in the oil storage cylinder, the hydraulic oil enters the two groups of oil cavities from the connecting pipe, the yarn sheet is driven to collide with the inner surface of the C-shaped steel under the connection of the collision rod, so that the friction force is improved, the falling speed of the elevator is controlled and reduced, the reduction effect is good, and the elevator is suitable for being used in high-rise elevators.

Description

Elevator anti-falling emergency speed reducing device

Technical Field

The utility model relates to the technical field of elevator safety equipment, in particular to an elevator falling-preventing emergency speed reducing device.

Background

The elevator safety device is a general name of a device and a device for ensuring normal operation of an elevator and preventing accidents from happening or carrying out emergency danger avoidance in the accidents, such as a hoisting rope at the top of the elevator, an elevator safety braking system and the like, and is an elevator anti-falling protection device disclosed in Chinese patent application publication CN 204980692U.

When the protection device is actually used, the spring plates and the damping of the springs can only realize better protection on lower floors, and after the number of floors exceeds the maximum elastic force threshold value given by the springs, the protection device cannot provide effective protection, in addition, the fan in the elevator box body can provide limited air flow flux, and the elevator and passengers are generally heavier, air can blow upwards from opposite sides of the elevator and the box body, so that the air pressure at the bottom of the elevator cannot be maintained in an effective value, and the method for buffering and damping by utilizing the air pressure has more limitations and unreliability.

To this end we provide an elevator fall arrest emergency speed reducer which solves the above problems.

Disclosure of Invention

Technical problem to be solved

The utility model aims to make up the defects of the prior art and provides an elevator falling-preventing emergency speed reducing device, which comprises a lift car, wherein a closed wall body is arranged at the bottom of the lift car, four groups of C-shaped steel are fixedly connected to the inner side of the closed wall body, a high-pressure fan is fixedly connected to the bottom of the closed wall body, an expansion air bag is fixedly connected to the bottom end of the lift car, propelling mechanisms are fixedly connected to the upper end and the lower end of the interior of the lift car, connecting pipes are fixedly connected to the left end and the right end of the propelling mechanisms, and one end, far away from the propelling mechanisms, of each connecting pipe is fixedly connected with a speed reducing mechanism.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

above-mentioned, advancing mechanism includes motor, screw thread lead screw, transmission section of thick bamboo, two sets of otic placode, electromagnetic adsorption device and oil storage section of thick bamboo, screw thread lead screw's one end and the output shaft fixed connection of motor, screw thread lead screw's front end threaded connection is in the inside of transmission section of thick bamboo, the front end of transmission section of thick bamboo passes through piston sliding connection in the inside of oil storage section of thick bamboo, one side of otic placode and the fixed surface connection of transmission section of thick bamboo, and the otic placode mirror image distributes in the left and right sides of transmission section of thick bamboo.

Above-mentioned, the connecting pipe is fixed connection in the left and right sides of oil storage section of thick bamboo front end respectively, motor and car fixed connection, electromagnetic adsorption device and car fixed connection, and electromagnetic adsorption device's bottom is pegged graft through the through-hole on metal pole and otic placode surface, otic placode sliding connection is in the spacing inslot of car inside.

Above-mentioned, reducing mechanism includes dividing oil pipe, two sets of oil pocket, supports feeler lever and brake piece board, the oil pocket is fixed connection in the front and back both ends that divide oil pipe respectively, the rear end of contradicting the lever passes through piston and the internal surface sliding connection of oil pocket, the front end of supporting feeler lever and the fixed surface who stops the piece board are connected.

Above-mentioned, brake piece board sliding connection is in the inboard surface of C shape steel, the one end that the connecting pipe kept away from the oil storage section of thick bamboo is fixed connection with the central point of dividing oil pipe one side.

Above-mentioned, C shape steel distributes in the four corners of the interior side surface of sealed wall body, high-pressure fan is located and expands the gasbag under.

The car is electrically connected with the expansion air bag and the sealing wall body through the electric control device, and the expansion air bag is positioned on the opposite sides of the car and the sealing wall body.

The beneficial effects are that:

compared with the prior art, the elevator anti-falling emergency speed reducing device has the following beneficial effects:

1. according to the utility model, through the arranged propulsion mechanism and the speed reducing mechanism, the motor drives the transmission cylinder to push hydraulic oil in the oil storage cylinder, the hydraulic oil enters the two groups of oil cavities from the connecting pipe, the instant sheet plates are driven to collide with the inner surface of the C-shaped steel under the connection of the collision rod, so that the friction force is improved, and meanwhile, the ear plates are inserted and connected to lock the positions under the action of the electromagnetic adsorption device, so that the transmission cylinder is prevented from rotating, the falling speed of the elevator is controlled and reduced, the speed reducing effect is good, and the elevator is suitable for being used in high-rise elevators.

2. According to the utility model, through the arranged expansion air bag, when the bottom end of the lift car enters the closed wall body, the lift car is electrically controlled to expand at the bottom of the lift car, and the opposite sides of the lift car and the closed box body are filled, so that the high-pressure air blower at the bottom of the closed wall body can better provide the air pressure at the bottom of the lift car, and the reliability and the practicability of air pressure damping and deceleration are improved.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

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

FIG. 2 is a schematic diagram of the internal structure of the present utility model;

FIG. 3 is a schematic view of the attachment of the propulsion mechanism of the present utility model;

FIG. 4 is a schematic view of the present utility model in section showing the connection between the propulsion mechanism and the reduction mechanism.

In the figure: 1. a car; 2. closing the wall; 3. c-shaped steel; 4. a high-pressure fan; 5. expanding the air bag; 6. a propulsion mechanism; 601. a motor; 602. a threaded lead screw; 603. a transmission cylinder; 604. ear plates; 605. an electromagnetic adsorption device; 606. an oil storage cylinder; 7. a connecting pipe; 8. a speed reducing mechanism; 801. oil distributing pipes; 802. an oil chamber; 803. a touch-up rod; 804. and a brake plate.

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.

As shown in fig. 1-4, the present utility model provides a technical solution: the elevator anti-falling emergency speed reducing device comprises a lift car 1, wherein a closed wall body 2 is arranged at the bottom of the lift car 1, four groups of C-shaped steel 3 are fixedly connected to the inner side of the closed wall body 2, a high-pressure fan 4 is fixedly connected to the bottom of the closed wall body 2, an expansion air bag 5 is fixedly connected to the bottom end of the lift car 1, a propelling mechanism 6 is fixedly connected to the upper end and the lower end of the interior of the lift car 1, connecting pipes 7 are fixedly connected to the left end and the right end of the propelling mechanism 6, and one end, far away from the propelling mechanism 6, of each connecting pipe 7 is fixedly connected with a speed reducing mechanism 8.

In this embodiment, when car 1 takes place to fall, propulsion mechanism 6 promotes the fluid and enters into among the reduction gears 8 through connecting pipe 7 this moment, contradict four sets of C shape steel 3 by reduction gears 8, improve the frictional force between car 1 and the C shape steel 3, thereby reduce the speed of falling of car 1, and when car 1 falls into among the closed wall 2, car 1 fills the space between car 1 and the closed wall 2 through electric control device control expansion gasbag 5 this moment, make up for high-pressure fan 4 can provide better atmospheric pressure effect in the bottom, make the practicality and the reliability of pneumatic shock attenuation buffering obtain promoting.

As shown in fig. 3-4, the propulsion mechanism 6 includes a motor 601, a threaded screw 602, a transmission cylinder 603, two sets of ear plates 604, an electromagnetic adsorption device 605 and an oil storage cylinder 606, one end of the threaded screw 602 is fixedly connected with an output shaft of the motor 601, the front end of the threaded screw 602 is in threaded connection with the inside of the transmission cylinder 603, the front end of the transmission cylinder 603 is in sliding connection with the inside of the oil storage cylinder 606 through a piston, one side of the ear plates 604 is fixedly connected with the surface of the transmission cylinder 603, the ear plates 604 are distributed on the left side and the right side of the transmission cylinder 603 in a mirror image manner, a connecting pipe 7 is respectively and fixedly connected with the left side and the right side of the front end of the oil storage cylinder 606, the motor 601 is fixedly connected with the car 1, the electromagnetic adsorption device 605 is fixedly connected with the car 1, the bottom of the electromagnetic adsorption device 605 is inserted through a through hole on the surface of the ear plates 604, the ear plates 604 are in a limit groove in the car 1, the speed reducing mechanism 8 includes an oil distributing pipe 801, two sets of oil cavities 802, an abutting rod 803 and a brake plate 804, the front end of the oil distributing pipe 802 is respectively fixedly connected with the front end and rear end of the oil distributing pipe 801, the rear end of the oil cavity 803 is fixedly connected with the inner surface of the brake plate 803 through the piston and the inner surface of the piston 803 is fixedly connected with the inner side of the inner surface of the brake plate 803, which is far away from the inner side of the steel plate 803, which is fixedly connected with the inner side of the inner surface of the brake plate 803, which is connected with the inner side of the brake plate 803.

In this embodiment, the motor 601 drives and drives the threaded screw 602 to rotate, the threaded screw 602 and the transmission cylinder 603 at the front end are in threaded transmission, under the position limitation of the lug 604, the transmission cylinder 603 drives the piston to push in the oil storage cylinder 606, oil is pushed from the connecting pipe 7 to the oil distribution pipe 801 in the speed reducing mechanism 8, oil enters the oil cavity 802 simultaneously, the contact between the brake plate 804 and the inner wall of the C-shaped steel 3 is pushed by the abutting rod 803 under oil pressure, so that the friction force between the whole car 1 and the C-shaped steel 3 is improved, the falling speed of the car 1 is reduced, meanwhile, the electromagnetic adsorption device 605 in the pushing mechanism 6 is driven, the metal rod at the bottom is inserted into the lug 604, the position of the transmission cylinder 603 is limited, the separation between the brake plate 804 and the C-shaped steel 3 caused by oil backflow is prevented, the reliability of the speed reducing process is improved, and the elevator speed reducing method is suitable for high-rise areas.

As shown in fig. 2, C-shaped steel 3 is distributed at four corners of the inner side surface of the closed wall 2, a high-pressure fan 4 is located under an expansion air bag 5, the car 1 is electrically connected with the expansion air bag 5 and the closed wall 2 through an electric control device, and the expansion air bag 5 is located at the opposite sides of the car 1 and the closed wall 2.

In this embodiment, when the bottom end of the car 1 enters the closed wall 2, the car 1 can control the expansion air bag 5 to work at this time, the expansion air bag 5 can effectively fill the gap between the car 1 and the closed wall 2, so that the four groups of high-pressure fans 4 at the bottom of the closed wall 2 can better provide air pressure support at the bottom of the car 1, thereby improving the practicability and reliability of air pressure buffering and deceleration.

Working principle: when the car 1 falls at a high position, the motor 601 in the propelling mechanism 6 drives the threaded screw 602 to rotate, so that the threaded screw 602 and the transmission cylinder 603 at the front end are in threaded transmission, the transmission cylinder 603 drives the piston to move in the oil storage cylinder 606 under the limit of the lug plate 604, oil is propelled from the connecting pipe 7 to the oil distributing pipe 801 in the speed reducing mechanism 8, the oil is shunted and then drives the contact rod 803 and the brake plate 804 outside the contact rod 803 in the oil cavity 802, the brake plate 804 is in contact with the inner wall of the C-shaped steel 3, meanwhile, the electromagnetic adsorption device 605 drives the metal rod to be inserted into the lug plate 604, the transmission cylinder 603 is prevented from being retracted, when the car 1 falls into the closed wall 2, the electric control expansion air bag 5 of the car 1 is expanded, a gap between the car 1 and the closed wall 2 is filled, and finally the high-pressure fan 4 performs air pressure supply work.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "fixedly attached," "mounted," "connected," and "coupled" are to be construed broadly, e.g., as a fixed connection, as a removable connection, or as an integral connection; "coupled" may be either mechanical or electrical; the "connection" may be direct, indirect via an intermediary, or communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. 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

1. Elevator emergency speed reducer that falls, including car (1), its characterized in that: the elevator car is characterized in that a closed wall body (2) is arranged at the bottom of the elevator car (1), four groups of C-shaped steel (3) are fixedly connected to the inner side of the closed wall body (2), a high-pressure fan (4) is fixedly connected to the bottom of the closed wall body (2), an expansion air bag (5) is fixedly connected to the bottom of the elevator car (1), propelling mechanisms (6) are fixedly connected to the upper end and the lower end of the inner portion of the elevator car (1), connecting pipes (7) are fixedly connected to the left end and the right end of each propelling mechanism (6), and a speed reducing mechanism (8) is fixedly connected to one end, far away from each propelling mechanism (6), of each connecting pipe (7).

2. The elevator fall arrest emergency speed reducer of claim 1, wherein: the propelling mechanism (6) comprises a motor (601), a threaded screw (602), a transmission cylinder (603), two groups of lug plates (604), an electromagnetic adsorption device (605) and an oil storage cylinder (606), one end of the threaded screw (602) is fixedly connected with an output shaft of the motor (601), the front end of the threaded screw (602) is in threaded connection with the inside of the transmission cylinder (603), the front end of the transmission cylinder (603) is in sliding connection with the inside of the oil storage cylinder (606) through a piston, one side of each lug plate (604) is fixedly connected with the surface of the transmission cylinder (603), and the lug plates (604) are distributed on the left side and the right side of the transmission cylinder (603) in a mirrored mode.

3. The elevator fall arrest emergency speed reducer of claim 2, wherein: the connecting pipe (7) is fixedly connected to the left side and the right side of the front end of the oil storage cylinder (606) respectively, the motor (601) is fixedly connected with the car (1), the electromagnetic adsorption device (605) is fixedly connected with the car (1), the bottom of the electromagnetic adsorption device (605) is inserted into the through hole on the surface of the lug plate (604) through a metal rod, and the lug plate (604) is slidably connected in the limiting groove inside the car (1).

4. The elevator fall arrest emergency speed reducer of claim 1, wherein: the speed reducing mechanism (8) comprises an oil distribution pipe (801), two groups of oil cavities (802), a collision rod (803) and a brake plate (804), wherein the oil cavities (802) are respectively and fixedly connected to the front end and the rear end of the oil distribution pipe (801), the rear end of the collision rod (803) is in sliding connection with the inner surface of the oil cavity (802) through a piston, and the front end of the collision rod (803) is fixedly connected with the surface of the brake plate (804).

5. The elevator fall arrest emergency speed reducer of claim 4, wherein: the brake plate (804) is connected to the inner side surface of the C-shaped steel (3) in a sliding mode, and one end, away from the oil storage cylinder (606), of the connecting pipe (7) is fixedly connected with the center position of one side of the oil distributing pipe (801).

6. The elevator fall arrest emergency speed reducer of claim 1, wherein: the C-shaped steel (3) is distributed at four corners of the inner side surface of the closed wall body (2), and the high-pressure fan (4) is positioned right below the expansion air bag (5).

7. The elevator fall arrest emergency speed reducer of claim 1, wherein: the car (1) is electrically connected with the expansion air bag (5) and the sealing wall body (2) through the electric control device, and the expansion air bag (5) is positioned on the opposite sides of the car (1) and the sealing wall body (2).