CN212450160U

CN212450160U - Elevator car overload protection device

Info

Publication number: CN212450160U
Application number: CN202021227149.0U
Authority: CN
Inventors: 孙守明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-02
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an elevator car overload protection device belongs to elevator safety field. The utility model provides an elevator car overload protection device, is including setting up the car in the elevator shaft, the inside of car is equipped with the bottom plate, installs a plurality of supporting spring between the inner diapire of bottom plate and car, and the inner diapire of car is installed with the pressure sensor of bottom plate contact, and the bottom of car is evenly inserted and is equipped with a plurality of laps, and the actuating mechanism that the control laps stretched out and were withdrawed is installed to the bottom of car, installs the singlechip on the diapire of car, and the singlechip is suitable for the data control actuating mechanism work according to pressure sensor, the support ring has set firmly on the inner wall of elevartor shaft. The utility model discloses a set up the support ring in the elevartor shaft, pop out a plurality of laps in the elevator bottom when the elevator overloads and take and support elevator car on the support ring, reduce the pulling force that the top rope received, protection rope and car have improved the security of car, and the laps can be withdrawed automatically after losing weight.

Description

Elevator car overload protection device

Technical Field

The utility model relates to an elevator safety field, more specifically say, relate to an elevator car overload protection device.

Background

An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. There are also steps, where the tread plates are mounted on a track for continuous operation, commonly known as escalators or moving walkways. The size and the structural form of the car are convenient for passengers to access or load and unload goods. It is customary to use elevators as a generic term for vertical transport means in buildings, irrespective of their drive mode.

In the actual use process, because the weight of all passengers or goods in the elevator cannot be accurately calculated, the elevator is often overloaded, and at the moment, the passengers need to quit the elevator or move the goods out of a part, so that the elevator can normally work. However, passengers and goods in the elevator do not leave the elevator in time in many times, and particularly when the elevator loads and unloads the goods, the situation is very common, so that the elevator bears the limit weight beyond the self-bearing capacity for a long time, the rope is too heavy, is easy to damage and even breaks, and serious safety accidents are caused, and need to be solved.

In view of this, we propose an elevator car overload protection device.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide an elevator car overload protection device to solve the problem that the long-time overload of the elevator that proposes causes the incident easily among the above-mentioned background art.

2. Technical scheme

The utility model provides an elevator car overload protection device, is including setting up the car in the elevator shaft, the inside of car is equipped with the bottom plate, install a plurality of supporting springs between the inner diapire of bottom plate and car, the inner diapire of car install with the pressure sensor of bottom plate contact, the bottom of car is evenly inserted and is equipped with a plurality of straps, the actuating mechanism that control strap stretches out and withdraws is installed to the bottom of car, install the singlechip on the diapire of car, the singlechip is suitable for the work of data control actuating mechanism according to pressure sensor, the support ring has set firmly on the inner wall of elevartor shaft, evenly install a plurality of supporting shoes that correspond with the strap position on the roof of support ring, and supporting shoe elastic mounting is on the support ring.

Preferably, actuating mechanism is including installing the electric liquid push rod on the connecting seat diapire, be equipped with the connecting seat on the diapire of car, big piston jack has been seted up to the inside of connecting seat, and the inside of big piston jack has set big piston, the output shaft of electric liquid push rod extend to in the big piston hole and with big piston fixed connection, evenly set up a plurality of little piston holes that communicate with big piston jack in the diapire of car, every the inside in little piston hole all sets the little piston with access board fixed connection.

Preferably, a plurality of mounting grooves which are in sliding fit with the supporting blocks are uniformly formed in the top wall of the supporting ring, a top spring is mounted on the bottom wall of each mounting groove, and the bottom wall of each supporting block is fixedly connected with the top spring.

Preferably, every the top of supporting shoe has all seted up the slope, the slope sets up towards the car.

Preferably, install the safety cover that the cover established in the singlechip outside on the diapire of car.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a set up the support ring in the elevartor shaft, when the elevator overloads pop out a plurality of laps in the elevator bottom and take on the support ring and support the elevator car, reduce the pulling force that the top rope received, protection rope and car, improved the security of car, the laps can be withdrawed automatically after losing weight;

2. set up resilient mounting's supporting shoe on the support ring, the attachment strap is taken on the supporting shoe, and the supporting shoe has certain buffer height, makes the attachment strap more smooth and easy when withdrawing, and the slope is seted up to the supporting shoe front end simultaneously and makes the attachment strap arrive the supporting shoe top more easily, and the structure is ingenious, and the function is various.

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is a sectional view of the present invention viewed from below;

FIG. 3 is an enlarged view of the structure at A of the present invention;

the reference numbers in the figures illustrate: 1. an elevator shaft; 2. a car; 3. a base plate; 4. a support spring; 5. a pressure sensor; 6. a connecting seat; 7. an electro-hydraulic push rod; 8. a large piston; 9. a butt strap; 10. a support ring; 11. a small piston bore; 12. a single chip microcomputer; 13. a large piston hole; 14. mounting grooves; 15. a spring is supported; 16. and (7) a supporting block.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides an elevator car overload protection device, including setting up car 2 in elevartor shaft 1, car 2's inside is equipped with bottom plate 3, install a plurality of supporting spring 4 between the inner diapire of bottom plate 3 and car 2, make bottom plate 3 have certain activity height, set up a plurality of supporting spring 4 simultaneously and support, it is too big to avoid 3 amplitudes of activity of bottom plate, pressure sensor 5 with 3 contacts of bottom plate is installed to the inner diapire of car 2, pressure sensor 5 can detect the gross weight of pedestrian or goods in the car 2, avoid overloading.

The bottom of car 2 is evenly inserted and is equipped with a plurality of straps 9, the actuating mechanism that control strap 9 stretched out and was withdrawed is installed to the bottom of car 2, actuating mechanism is including installing the electric liquid push rod 7 on 6 diapalls of connecting seat, be equipped with connecting seat 6 on 2's the diapalls of car, big consent 13 has been seted up to the inside of connecting seat 6, big piston 8 has been set to the inside of big consent 13, the output shaft of electric liquid push rod 7 extend to in the big consent 13 and with big piston 8 fixed connection, evenly set up a plurality of little piston holes 11 with big consent 13 intercommunication of living in 2's the diapalls of car, the inside of every little piston hole 11 all sets the little piston with strap 9 fixed connection. Install singlechip 12 on car 2's the diapire, singlechip 12 is suitable for and establishes the safety cover in the singlechip 12 outside according to pressure sensor 5's data control actuating mechanism work, installs the cover on car 2's the diapire, protects singlechip 12, avoids singlechip 12 dirty and damage. Set firmly support ring 10 on elevator shaft 1's the inner wall, evenly install a plurality of supporting shoes 16 that correspond with the attachment strap 9 position on support ring 10's the roof, and 16 resilient mounting of supporting shoe are on support ring 10, evenly set up a plurality ofly on support ring 10's the roof with 16 sliding fit's of supporting shoe mounting groove 14, all install top spring 15 on every mounting groove 14's the diapire, 16's of supporting shoe diapire and top spring 15 fixed connection, the slope has all been seted up on every supporting shoe 16's the top, the slope sets up towards car 2.

The working principle is as follows: when the total weight of pedestrians and goods in the car 2 exceeds the weight limit, after detection data of the pressure sensor 5 is transmitted to the single chip microcomputer 12, the single chip microcomputer 12 turns on an alarm (in the prior art, no repeated description is given here), and immediately turns on the electro-hydraulic push rod 7 to upwards jack the large piston 8, the large piston 8 can jack each small piston outwards by moving upwards, the butt plate 9 is driven to stretch out, the support ring 10 corresponding to the stop position of each floor is arranged, the butt plate 9 stretches out to jack the support block 16 to gradually press down the support block 16 and finally to be lapped on the support block 16, part of gravity borne by the car 2 is dispersed through the butt plate 9, the load borne by the rope is reduced, when the load of the elevator is reduced, the butt plate 9 is packed up by the electro-hydraulic push rod 7 by the single chip microcomputer 12, and the car 2 can.

The present invention relates to the prior art of circuits and electronic components and modules, and can be implemented by those skilled in the art without redundancy, and the present invention also does not relate to improvements to the internal structure and method.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An elevator car overload protection device, comprising a car (2) disposed within an elevator shaft (1), characterized in that: a bottom plate (3) is arranged in the cage (2), a plurality of supporting springs (4) are arranged between the bottom plate (3) and the inner bottom wall of the cage (2), a pressure sensor (5) contacted with the bottom plate (3) is arranged on the inner bottom wall of the cage (2), a plurality of butt straps (9) are uniformly inserted at the bottom of the cage (2), a driving mechanism for controlling the butt straps (9) to extend out and retract is installed at the bottom of the cage (2), a singlechip (12) is arranged on the bottom wall of the cage (2), the singlechip (12) is suitable for controlling the driving mechanism to work according to the data of the pressure sensor (5), the elevator hoistway structure is characterized in that a support ring (10) is fixedly arranged on the inner wall of the elevator hoistway (1), a plurality of support blocks (16) corresponding to the positions of the butt strap (9) are uniformly arranged on the top wall of the support ring (10), and the support blocks (16) are elastically arranged on the support ring (10).

2. An elevator car overload protection apparatus according to claim 1, wherein: actuating mechanism is including installing electrohydraulic push rod (7) on connecting seat (6) diapire, be equipped with connecting seat (6) on the diapire of car (2), big piston hole (13) have been seted up to the inside of connecting seat (6), and the inside of big piston hole (13) has set big piston (8), the output shaft of electrohydraulic push rod (7) extend to in big piston hole (13) and with big piston (8) fixed connection, evenly set up a plurality of little piston holes (11) with big piston hole (13) intercommunication in the diapire of car (2), every the inside of little piston hole (11) all sets the little piston with access board (9) fixed connection.

3. An elevator car overload protection apparatus according to claim 1, wherein: the supporting ring is characterized in that a plurality of mounting grooves (14) in sliding fit with the supporting blocks (16) are uniformly formed in the top wall of the supporting ring (10), each mounting groove (14) is provided with a top spring (15) in the bottom wall, and the bottom wall of each supporting block (16) is fixedly connected with the top spring (15).

4. An elevator car overload protection apparatus according to claim 1, wherein: every the slope has all been seted up on the top of supporting shoe (16), the slope sets up towards car (2).

5. An elevator car overload protection apparatus according to claim 1, wherein: install the safety cover that the cover established in singlechip (12) outside on the diapire of car (2).