CN214610974U

CN214610974U - Elevator overspeed protection device

Info

Publication number: CN214610974U
Application number: CN202023114899.XU
Authority: CN
Inventors: 徐锋
Original assignee: Hangzhou Lin'an Zhongfang Electromechanical Co ltd
Current assignee: Hangzhou Lin'an Zhongfang Electromechanical Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-05
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to the technical field of elevator operation safety protection devices, in particular to an elevator overspeed protection device, which comprises a car body, a steel wire rope is arranged at the top of the cage body, one end of the steel wire rope, which is far away from the cage body, is fixedly connected with a balancing weight, a traction wheel is arranged on the outer wall of the steel wire rope and above the car body, guide rails are arranged on two sides of the balancing weight, the front and the back of the center of the top of the balancing weight are both provided with a supporting seat, the top of the supporting seat is provided with an installation box, the installation box is internally provided with a groove, by arranging the pushing cylinder, the speed reducing plate, the fixing plate and the spring, the problem that when the conventional elevator safety protection device carries out overspeed protection on the elevator is solved, the balancing weight can continue to remove because of inertia to cause secondary to destroy to the car, lead to the inside personnel of car to appear dangerous problem.

Description

Elevator overspeed protection device

Technical Field

The utility model relates to an elevator operation safety arrangement technical field specifically is an elevator overspeed protection device.

Background

The elevator is a vertical transportation tool for frequently carrying people, and has enough safety, the safety of the elevator firstly protects people, and simultaneously protects the elevator, the carried goods and materials and a building for installing the elevator, the elevator brings convenience to people in daily life, and brings certain risks to people, once the elevator falls, terrible consequences are usually brought, and although the elevator is maintained and checked every year, the safety of the elevator is not enough to be ensured.

When current elevator safety arrangement overspeed protection device was protected the elevator, the balancing weight can continue to remove because of inertia to cause the secondary to destroy to the car, lead to the inside personnel of car to appear dangerous, consequently need an elevator overspeed protection device to make the improvement to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator overspeed protection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an elevator overspeed protection device comprises a car body, wherein a steel wire rope is arranged at the top of the car body, one end of the steel wire rope, which is far away from the car body, is fixedly connected with a balancing weight, the outer wall of the steel wire rope and positioned above the car body are provided with traction wheels, two sides of the balancing weight are provided with guide rails, the front side and the back side of the center of the top of the balancing weight are provided with supporting seats, the top of each supporting seat is provided with an installation box, the inside of the installation box is provided with a groove, two sides of the groove and positioned at the corresponding positions of the guide rails are respectively provided with a pushing cylinder, one end of the pushing cylinder, which is close to the guide rails, is provided with a speed reducing plate, one side of the groove, which is far away from the guide rails, is provided with a sleeve at the corresponding position of the speed reducing plate, a limiting rod is arranged inside the sleeve, the bottom of the inner wall of the sleeve and the position, which is corresponding to the limiting rod, is provided with an electromagnet, the telescopic one end fixedly connected with fixed plate is kept away from to the gag lever post, the outer wall of fixed plate just is provided with the spring in telescopic corresponding position department, the recess is kept away from the center department of guide rail one side and is provided with speedtransmitter, the inside of install bin just is provided with the singlechip in the position department of being close to the recess, the inside of install bin just is located the right side of singlechip and is provided with the battery.

Preferably, the pushing cylinder, the speed sensor, the electromagnet and the storage battery are all connected with the single chip microcomputer through wires, and the connection modes are all electrically connected.

Preferably, the sleeve, the limiting rod, the electromagnet and the spring are all provided with multiple groups.

Preferably, the push cylinder is connected with the installation box through a bolt.

Preferably, the fixing plate is a fixing plate with a clip-shaped structure.

Preferably, the speed reduction plate is made of nickel-chromium alloy.

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

1. in the utility model, by arranging the pushing cylinder, the speed reducing plate, the fixed plate and the spring, when the elevator is subjected to overspeed protection, the speed sensor can detect the running speed of the balancing weight, the detected information is transmitted into the singlechip, the singlechip can start the pushing cylinder, the pushing cylinder can drive the speed reducing plate to move, the guide rail is clamped by the speed reducing plate, the contact area of the speed reducing plate and the guide rail is increased, the singlechip cuts off the electromagnet, after the electromagnet is cut off, the fixed plate can move under the elastic action of the spring, the fixed plate can fix the speed reducing plate to prevent the speed reducing plate from bouncing off in the working process, the running speed of the balancing weight is reduced by increasing the friction force received when the balancing weight moves, thereby realizing secondary fixation of the balancing weight, effectively limiting the displacement of the balancing weight, and protecting the elevator car, prevented that the balancing weight from destroying the secondary of car, protected the inside personnel's of car life safety, when having solved current elevator safety arrangement and having overspeed protection to the elevator, the balancing weight can continue to remove because of inertia to cause the secondary to destroy to the car, lead to the inside personnel of car dangerous problem to appear.

2. The utility model discloses in, through the battery that sets up, the battery is to this device independent power supply, has prevented to lead to the unable normal use's of this device condition because of the outside outage, and the reliability is higher.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the counterweight of the present invention;

FIG. 3 is a partial top cross-sectional view of the installation box of the present invention;

fig. 4 is a top cross-sectional view of the sleeve of the present invention.

In the figure: 1-car body, 2-steel wire rope, 3-balancing weight, 4-traction sheave, 5-guide rail, 6-supporting seat, 7-installation box, 8-groove, 9-pushing cylinder, 10-speed reducing plate, 11-sleeve, 12-limiting rod, 13-electromagnet, 14-fixing plate, 15-spring, 16-speed sensor, 17-single chip microcomputer and 18-storage battery.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

an elevator overspeed protection device comprises a car body 1, wherein a steel wire rope 2 is arranged at the top of the car body 1, one end of the steel wire rope 2, which is far away from the car body 1, is fixedly connected with a balancing weight 3, a traction sheave 4 is arranged on the outer wall of the steel wire rope 2 and is positioned above the car body 1, guide rails 5 are arranged on two sides of the balancing weight 3, supporting seats 6 are respectively arranged on the front surface and the back surface of the center of the top of the balancing weight 3, an installation box 7 is arranged at the top of the supporting seat 6, a groove 8 is formed in the installation box 7, pushing cylinders 9 are respectively arranged on two sides of the groove 8 and are positioned at corresponding positions of the guide rails 5, the pushing cylinders 9 are connected with the installation box 7 through bolts, one ends, which are close to the guide rails 5, of the pushing cylinders 9 are provided with speed reduction plates 10, the speed reduction plates 10 are made of nichrome, one sides, which are far away from the guide rails 5, of the grooves 8 are provided with sleeves 11 at corresponding positions of the speed reduction plates 10, the inside of sleeve 11 is provided with gag lever post 12, sleeve 11's inner wall bottom just is provided with electro-magnet 13 in gag lever post 12's corresponding position department, sleeve 11's one end fixedly connected with fixed plate 14 is kept away from to gag lever post 12, fixed plate 14 is the structure fixed plate that returns, the outer wall of fixed plate 14 just is provided with spring 15 in sleeve 11's corresponding position department, sleeve 11, gag lever post 12, electro-magnet 13 and spring 15 all are provided with the multiunit, recess 8 is kept away from the center department of guide rail 5 one side and is provided with speedtransmitter 16, the inside of install bin 7 just is provided with singlechip 17 in the position department of being close to recess 8, promote cylinder 9, speedtransmitter 16, electro-magnet 13 and battery 18 all are connected through the wire with singlechip 17, and the connected mode is electric connection, the inside of install bin 7 just is located the right side of singlechip 17 and is provided with battery 18.

The utility model discloses work flow: when the elevator overspeed protection device is used, when the elevator speed is too high, the overspeed protection device of the car body 1 is started, the speed sensor 16 can detect the running speed of the counterweight block 3, the detected information is transmitted to the inside of the single chip microcomputer 17, the single chip microcomputer 17 can start the pushing cylinder 9, the pushing cylinder 9 can drive the speed reducing plate 10 to move, the guide rail 5 is clamped by the speed reducing plate 10, the contact area between the speed reducing plate 10 and the guide rail 5 is increased, the single chip microcomputer 17 is powered off the electromagnet 13, after the electromagnet 13 is powered off, the fixing plate 14 can move under the elastic force action of the spring 15, the speed reducing plate 10 enters the fixing plate 14, the fixing plate 14 can fix the speed reducing plate 10 and prevent the speed reducing plate 10 from bouncing off in the working process, the running speed of the counterweight block 3 is reduced through the friction between the speed reducing plate 10 and the guide rail 5, and therefore the overspeed protection of the elevator is realized;

when the staff overhauls the elevator, the staff pushes back fixed plate 14 the original position, make fixed plate 14 break away from air brake 10, after the staff pushes back fixed plate 14 the original position, singlechip 17 starts electro-magnet 13, gag lever post 12 is inhaled to electro-magnet 13, thereby the realization is fixed to fixed plate 14, after fixed plate 14 pushes back the original position, singlechip 17 restarts promotion cylinder 9, promotion cylinder 9 drives air brake 10 reverse movement, thereby drive air brake 10 and break away from guide rail 5 and get back to the original position, after air brake 10 gets back to the original position, singlechip 17 closes promotion cylinder 9.

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

Claims

1. An elevator overspeed protection device, includes car body (1), its characterized in that: the elevator car comprises a car body (1), wherein a steel wire rope (2) is arranged at the top of the car body (1), one end, far away from the car body (1), of the steel wire rope (2) is fixedly connected with a balancing weight (3), a traction wheel (4) is arranged on the outer wall of the steel wire rope (2) and positioned above the car body (1), guide rails (5) are arranged on two sides of the balancing weight (3), supporting seats (6) are arranged on the front and the back of the center of the top of the balancing weight (3), an installation box (7) is arranged at the top of the supporting seats (6), a groove (8) is formed in the installation box (7), pushing cylinders (9) are arranged on two sides of the groove (8) and positioned at positions corresponding to the guide rails (5), a speed reducing plate (10) is arranged at one end, close to the guide rails (5), of the pushing cylinders (9), a sleeve (11) is arranged on one side, far away from the guide rails (5) of the groove (8) and is arranged at a position corresponding to the speed reducing plate (10), the utility model discloses a guide rail, including sleeve (11), the inside of sleeve (11) is provided with gag lever post (12), the inner wall bottom of sleeve (11) just is provided with electro-magnet (13) in the corresponding position department of gag lever post (12), the one end fixedly connected with fixed plate (14) of sleeve (11) are kept away from in gag lever post (12), the outer wall of fixed plate (14) just is provided with spring (15) in the corresponding position department of sleeve (11), the center department of guide rail (5) one side is kept away from in recess (8) is provided with speedtransmitter (16), the inside of install bin (7) just is provided with singlechip (17) in the position department of being close to recess (8), the inside of install bin (7) and the right side that is located singlechip (17) are provided with battery (18).

2. An elevator overspeed protection device as set forth in claim 1, wherein: the pushing cylinder (9), the speed sensor (16), the electromagnet (13), the storage battery (18) and the single chip microcomputer (17) are all connected through wires, and the connection modes are all electrically connected.

3. An elevator overspeed protection device as set forth in claim 1, wherein: the sleeve (11), the limiting rod (12), the electromagnet (13) and the spring (15) are all provided with multiple groups.

4. An elevator overspeed protection device as set forth in claim 1, wherein: the pushing cylinder (9) is connected with the mounting box (7) through a bolt.

5. An elevator overspeed protection device as set forth in claim 1, wherein: the fixing plate (14) is a fixing plate with a clip-shaped structure.

6. An elevator overspeed protection device as set forth in claim 1, wherein: the speed reduction plate (10) is made of nichrome.