CN202226493U

CN202226493U - Lower mechanical preventing device of elevator

Info

Publication number: CN202226493U
Application number: CN2011202971191U
Authority: CN
Inventors: 黄梓尧; 黄耀文; 叶广厚
Original assignee: GUANGDONG ZHUJIANG ZHONGFU ELEVATOR CO Ltd
Current assignee: GUANGDONG ZHUJIANG ZHONGFU ELEVATOR CO Ltd
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-05-23
Anticipated expiration: 2021-08-16

Abstract

The utility model discloses a lower mechanical preventing device of an elevator, wherein the lower mechanical preventing device comprises a fixing base which is erected between cage guide rails; the fixing base is provided with a shaft seat; a preventing vertical post is connected with the shaft seat movably through a rotary arm; the shaft seat is provided with a pulley; the pulley is connected with the shaft seat through a connection shaft; a pulling rope bypasses the pulley and is connected with the rotary arm; the other end of the pulling rope is connected with a positioning piece; one side, positioned on the rotary arm, of the fixing base is provided with an upper reset switch and a lower reset switch; the parts, opposite to the upper reset switch and the lower reset switch, of the rotary arm are provided with switch hitting plates; and a cage buffer is arranged on the ground of a well pit of the elevator and is positioned below the preventing vertical post. According to the utility model, the structure is simple and reasonable, the depth of the well pit is lowered effectively, at the same time, the safe overhauling space is ensured, and the construction cost is lowered; and the lower mechanical preventing device of the elevator is widely applied to the technical field of elevators.

Description

A kind of lower mechanical preventing device of elevator

Technical field

The utility model relates to the elevator technology field, particularly a kind of lower mechanical preventing device of elevator.

Background technology

Existing elevator hoistways bottom all is provided with darker pit so that service personnel overhauls elevator, after the building completion, when needs are installed elevator; If elevator hoistways pit depth out of reach necessary requirement then need be deepened pit, under some specific architectural environments; Wanting to deepen the hoistway pit depth is difficult to realize; Also increased construction cost even can deepen the degree of depth of well pit,, be necessary to make improvement to above-mentioned shortcoming.

Summary of the invention

In order to overcome the deficiency of prior art, it is a kind of simple and reasonable for structure that the utility model provides, and can reduce the well pit degree of depth and practice thrift the lower mechanical preventing device of elevator of construction cost.

The utility model solves the technical scheme that its technical matters adopted:

A kind of lower mechanical preventing device of elevator comprises the permanent seat that is erected between the car guide rail, and said permanent seat is provided with axle bed; There is the column of prevention to flexibly connect through pivot arm and axle bed; On axle bed, be provided with pulley, this pulley links to each other with axle bed through adapter shaft, has stay cord to walk around pulley and is connected with pivot arm; This stay cord other end is connected with locations; Be positioned at pivot arm one side on the said permanent seat and be provided with upper and lower reset switch, the position relative with upper and lower reset switch is provided with switch and re-packs on the said pivot arm, on elevator hoistways pit ground, be positioned at and be provided with car buffer below stoping column.

Wherein, said pivot arm is a U-shaped, and its open front end is installed on and stops the column both sides to flexibly connect with stoping column, and its rear end is connected with the axle bed axle through connecting rod, and said switch re-packs and is arranged at pivot arm rear end and corresponding with upper and lower reset switch position.

The beneficial effect of the utility model is: through the utility model being installed between the car guide rail in the elevator hoistways pit; When elevator need overhaul, unclamp stay cord, pivot arm loses the application force of stay cord; Stop column driven rotary arm under the self gravitation effect to move downward; After stoping column to fall the car buffer top fully, stop, at this moment, switch re-packs and touches down reset switch; Make elevator be in inspecting state, the buffer plate of lift car bottom surface receives and stops column to stop the car buffer under back, the prevention column to play buffer action in the lump with the car buffer plate; At this moment, form the safety inspection space of National standard between car bottom surface and the well pit, the personnel that maintain easily overhaul elevator; After maintenance was accomplished, pulling stay cord, stay cord be driven rotary arm, prevention column upward movement under the directional tagging of pulley; Separate with car buffer; After running into pulley and adapter shaft that axle bed links to each other, make to stop column no longer up to move, at this moment; Switch re-packs and touches reset switch, and elevator is in normal working; Make the following side space that stops column to stop at the sedan-chair frame, can not run into the prevention column when this space can guarantee car and counterweight up-and-down movement, the utility model has effectively reduced the well pit degree of depth, has guaranteed safe space for maintenance simultaneously, has reduced construction cost.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

The structural representation of the utility model when Fig. 1 is the elevator normal operation;

Fig. 2 is the structural representation of elevator the utility model when maintenance.

The specific embodiment

With reference to Fig. 1, Fig. 2.A kind of lower mechanical preventing device of elevator comprises the permanent seat 1 that is erected between the car guide rail, and said permanent seat 1 is provided with axle bed 2; There is the column of prevention 3 to flexibly connect through pivot arm 4 and axle bed 2; On axle bed 2, be provided with pulley 5, this pulley 5 links to each other with axle bed 2 through adapter shaft 6, has stay cord 7 to walk around pulley 5 and is connected with pivot arm 4; These stay cord 7 other ends are connected with locations; Be positioned at pivot arm 4 one sides on the said permanent seat 1 and be provided with upper and

lower reset switch

8,9, be provided with switch with upper and

lower reset switch

8,9 relative positions on the said pivot arm 4 and re-pack 10, on elevator hoistways pit ground, be positioned at and be provided with car buffer 11 below stoping column 3.

Wherein, Said pivot arm 4 is a U-shaped; Its open front end is installed on and stops column 3 both sides to flexibly connect with stoping column 3, and its rear end is connected with 2 of axle beds through connecting rod 12, and said switch re-packs and 10 is arranged at pivot arm 4 rear ends and corresponding with upper and

lower reset switch

8,9 positions.

Through the utility model being installed between the car guide rail in the elevator hoistways pit; When elevator need overhaul, unclamp stay cord 7, pivot arm 4 loses the application force of stay cord 7; Stop column 3 driven rotary arm 4 under the self gravitation effect to move downward; After stoping column 3 to fall car buffer 11 tops fully, stop, at this moment, switch re-packs and 10 touches down reset switch 9; Make elevator be in inspecting state, the buffer plate of lift car bottom surface receives and stops column 3 to stop the car buffer under back, the prevention column 3 to play buffer action in the lump with the car buffer plate; At this moment, form the safety inspection space of National standard between car bottom surface and the well pit, the personnel that maintain easily overhaul elevator; After maintenance was accomplished, pulling stay cord 7, stay cord 7 be driven rotary arm 4, prevention column 3 upward movements under the directional tagging of pulley 5; Separate with car buffer 11; After running into pulley 5 and adapter shaft 6 that axle bed 2 links to each other, make to stop column 3 no longer up to move, at this moment; Switch re-packs and 10 touches reset switch 8, and elevator is in normal working; Make the following side space that stops column 3 to stop at the sedan-chair frame, can not run into prevention column 3 when this space can guarantee car and counterweight up-and-down movement, make car buffer 11 place below, lift car bottom surface simultaneously, car is played buffer action.

The utility model is simple and reasonable for structure, has effectively reduced the well pit degree of depth, has guaranteed safe space for maintenance simultaneously, has reduced construction cost; It is a kind of lower mechanical preventing device of elevator that is widely used in the elevator technology field.

Claims

1. lower mechanical preventing device of elevator; It is characterized in that: comprise the permanent seat (1) that is erected between the car guide rail; Said permanent seat (1) is provided with axle bed (2), has prevention column (3) to flexibly connect through pivot arm (4) and axle bed (2), on axle bed (2), is provided with pulley (5); This pulley (5) links to each other with axle bed (2) through adapter shaft (6); Have stay cord (7) to walk around pulley (5) and be connected with pivot arm (4), this stay cord (7) other end is connected with locations, is positioned at pivot arm (4) one sides on the said permanent seat (1) and is provided with upper and lower reset switch (8,9); Said pivot arm (4) is gone up and to be provided with switch with the relative position of upper and lower reset switch (8,9) and to re-pack (10), on elevator hoistways pit ground, be positioned at and stop column (3) below to be provided with car buffer (11).

2. a kind of lower mechanical preventing device of elevator according to claim 1; It is characterized in that said pivot arm (4) is a U-shaped; Its open front end is installed on and stops column (3) both sides to flexibly connect with stoping column (3); Its rear end spool is connected through connecting rod (12) and axle bed (2), said switch re-pack (10) be arranged at pivot arm (4) rear end and corresponding with upper and lower reset switch (8,9) position.