CN109455593A

CN109455593A - Safe downlink mechanism

Info

Publication number: CN109455593A
Application number: CN201811439164.9A
Authority: CN
Inventors: 张德崑
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-29
Filing date: 2018-11-29
Publication date: 2019-03-12

Abstract

A kind of new elevator safety downlink mechanism is invented, feature: elevator is for example faulty, and elevator does not have to any auxiliary body, automatically according to fixed speed downlink.The follower 6 that driving wheel 7 is housed in one end of the cabinet 5 of release mechanism, cabinet 5 by 10 pressure-bearing of roller bearing when elevator downlink and is engaged by gear 9, determines the distance of the guide rail 2 in two-wheeled to pressure-bearing point, roll two-wheeled can only on guide rail 2 cannot slide；Oil pump 13 is connected by oil pipe 17 after speed governing valve 18,16 parallel connection of check valve to import and export, forms closed cycle, flow is adjusted, determines rolling speed of the input axis connection driving wheel 7 of oil pump 13 on guide rail, is exactly the elevator downstream rate being connected with wheel.Two roller bearings 10, which hold up the level of cabinet 5, when elevator rises makes 7 follower 6 of driving wheel have micro- turn of gap two-wheeled with guide rail；Oil forward flows to outlet by check valve from the import of oil pump 13, makes the rolling non-resistance with 13 fifth wheels 7 of pump on guide rail, does not consume energy.

Description

Safe downlink mechanism

Technical field:

The invention belongs to the release mechanisms of elevator

Background technique:

The most important index of elevator performance is safety, is matched so far using the limiter of speed of this invention difficult to understand with two mechanism of safety tongs Close use safety device, it have deficiency: 1, limiter of speed or safety tongs have one it is problematic just accidents happened.2, elevator once has event Barrier lock is waited for rescue in the air, and passenger worries.3, Modern New elevator such as superelevation elevator, magnetic levitation elevator, oblique elevator, climb Mountain elevator etc., can not or limiter of speed difficult to use and safety tongs guarantee the safety of elevator,

Safety device, the elevator of other lift types are also all locked in maintenance difficult in the air, safety problem if you have questions The application and development for hindering modem elevator, so being badly in need of for example faulty Automatic-descending device of an elevator.

Summary of the invention:

The purpose of the present invention is creating a kind of new elevator car safety, applied to Lift out of order, do not allow to stop It elevator in the air and cannot use or device as guarantee elevator safety of limiter of speed difficult to use and safety tongs.

Main composition:

Carriage 1, guide rail 2, long connecting rod 3, short connecting rod 4, cabinet 5, follower 6, driving wheel 7, gear key 8, gear 9, roller bearing 10, connecting key 11, shaft joint 12, oil pump 13, check valve 16, oil pipe 17, speed governing valve 18, composition, wherein 14 be the oil inlet of oil pump Mouthful, 15 be oil pump oil outlet.

Main feature:

For elevator once accident occurs or when downlink, the present invention does not have to any auxiliary body automatically according under scheduled speed Row.With the difference of present elevator car safety:

1, the safety device of elevator is made of limiter of speed, safety tongs Liang Ge mechanism now, one of mechanism goes wrong, Safety is just not guaranteed, and the present invention is that mechanism, a component are simple and reliable.

2, the present invention is not now fool proof improvement but utilizes and be equivalent to rigid oil liquid exporting to from oil pump The flow of import obtains the speed of elevator downlink.

3, elevator such as breaks down, elevator lock in the air, is being waited to be repaired by safety device now, and the present invention will not lock In the air, but scheduled position is gone downwards to presetting speed automatically.

The working principle of the invention:

Connection oil pump inlet and outlet, form closed interior circulating oil path, are equivalent to rigid oil after speed governing valve, check valve are in parallel The rotation that oil pump input shaft is hindered in circulating oil path determines the oil mass that speed governing valve flows through, the revolving speed for determining oil pump input shaft

Detailed description of the invention:

Fig. 1 is main view of the invention

Fig. 2 is top view of the invention

Fig. 3 is partial enlarged view at Fig. 1, A

Fig. 4 is Fig. 3, B-B echelon sectional view

The working drawing of mechanism when Fig. 5 is carriage downlink

Specific embodiment:

Present invention implementation is described in further detail with reference to the accompanying drawing:

Shown in Fig. 1, Fig. 3: affixed a pair of of the long connecting rod 3 in 1 upper end of carriage and a pair of of short connecting rod 4, long connecting rod 3, short connecting rod 4, on Roller bearing 10 is equipped in lower opening, a pair of of long connecting rod 3 presss from both sides 5 one end of cabinet, a pair of of short connecting rod 4 presss from both sides 5 other end of cabinet, cabinet 5 in length Can be up and down in short connecting rod, up and down range is all limited by roller bearing 10.Shown in Fig. 4: gear 9 passes through gear key 8 It being fixed on driving wheel 7 and follower 6, two-wheeled is incorporated into cabinet and is engaged with identical revolving speed by the gear of the identical number of teeth, Guide rail 2 has gap between driving wheel 7 and follower 6, and 7 other end of driving wheel passes through connecting key 11, shaft joint 12 and oil pump 13 input axis connection；The oil outlet 15 for connecting oil pump 13 through oil pipe 17 after 16 speed governing valve of check valve, 18 parallel connection arrives oil inlet 14, It is totally-enclosed interior circulation.

When carriage 1 moves upwards, two roller bearings 10 hold up the level of cabinet 5, there is gap between two-wheeled and guide rail, do not turn or gently Micro- rotation；When rotated, driving wheel 7 drives oil pump input shaft to turn, and oil comes out from the oil inlet 14 of oil pump, passes through oil pipe 17, list To valve 16, it is forward unresisted flow into, oil outlet 15, oil rotates no resistance to the input shaft of oil pump, do not consume energy.When carriage 1 It breaks down during uplink or when downlink, shown in Fig. 5: since 7 follower 6 of driving wheel in cabinet 5 stresses the two of guide rail 2 Amount is different, natural to tilt to a side of weight, carriage 1 by roller bearing 10 on short connecting rod 4, be pressed in one end of cabinet 5, make cabinet 5 An angle is tilted, determines roller bearing 10 at a distance from guide rail 2；There are dead point, rolling friction greatly with the guide rail coefficient of sliding friction according to wheel Coefficient is small, the principle that can be rolled, so that 7 follower 6 of driving wheel cannot be slided on guide rail and can only be rolled；Drive driving wheel 7 Rotation, is connected thereto the input shaft rotation of oil pump 13, oil, it is reverse through check valve 16, cannot flow through, speed governing valve 18 can only be flowed into, Oil mass after adjusted enters oil inlet 14；According to the principle that being equivalent to rigid oil, oil pump input shaft can be hindered to rotate, adjusted The oil mass of oil inlet 14 is arrived in whole, the determining outlet 15 for flowing through oil pump 13, it is determined that and oil pump inputs the revolving speed of axis connection driving wheel 7, Determine rolling speed of the driving wheel 7 on guide rail, rolling speed downlink of the carriage according to driving wheel 7 on guide rail guarantees The safety of elevator, will not be out of control.Described above is to do driving medium with oil, can also do driving medium with other liquid.

Claims

1. a kind of elevator safety downlink mechanism mainly by: cabinet, driving wheel, gear, roller bearing, pump, valve, forms follower, special Sign: mechanism is connected with elevator, and two-wheeled can only be rolled on guide rail and cannot be slided in mechanism, and the inlet and outlet of valve connection pump form envelope Interior circulation loop is closed, the wheel oil liquid when rolling on guide rail that is connected with pump shaft is flowed in inlet and outlet, regulating valve and the liquid for determining circuit Flow also determines that the rolling speed being connected with pump shaft Lun on guide rail, to obtain elevator decrease speed.