A kind of locking device of elevatorTechnical field
This utility model relates to elevator technology field, particularly relates to the locking device of a kind of elevator.
Background technology
In the line service of elevator, regularly maintenance is the important ring ensureing elevator operation securityJoint.When elevator is overhauled by maintainer, in order to ensure the safety of maintainer, to the sedan-chair of elevatorLocking device is set up in railway carriage or compartment, thus is locked on guide rail by car.Existing locking device can not be by the electricity of elevatorGas safety return circuit disconnects, thus plays the effect of an electic protection
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is to provide one can lock carThe locking device of the elevator in electrical safety loop can be disconnected again.
The utility model discloses the locking device of a kind of elevator, including axis pin base weldment, location-plate, pinAxle and electric switch part, described axis pin base weldment is fixed on the side surface of the upper beam of elevator, described location-plateIt is fixed on the car guide rail being installed on well enclosure, described location-plate offers hole, location, described bearing pinLevel runs through described axis pin base weldment, and described bearing pin is coaxially disposed with hole, described location, described electric switchPart is fixed on described axis pin base weldment near one end of described location-plate and vertical with described bearing pin, whenDescribed bearing pin is applied in external force and is moved horizontally to insert the latched position hole, described location from initial positionTime, described electric switch part is with described bearing pin interference fit thus locks elevator, makes the electricity of elevator simultaneouslyAir circuit disconnects, and enters inspecting state.
Preferably, described bearing pin includes front end, axle body and rear end, when described bearing pin is in described initial bitWhen putting, described front end is between described axis pin base weldment and described location-plate, and described axle body houses and instituteStating in axis pin base weldment, described rear end is the operation away from described location-plate exposing described axis pin base weldmentEnd, when described bearing pin is in described latched position, hole, described location, described axle body are inserted in described front endA part stretch out described axis pin base weldment and described electric switch part interference fit, described axle body anotherA part is still housed in described axis pin base weldment.
Preferably, the external diameter of described front end is less than the external diameter of described axle body, and described electric switch part is with describedWhat the friction side of axle body interference fit was stretched between the external diameter of described front end and the external diameter of described axle body cutsIn space of planes.
Preferably, the axle body of described bearing pin is fixed with described axis pin base weldment by a spring, described springOne end be fixed in described axis pin base weldment the one end away from described location-plate, the other end of described springIt is fixed on the axle body of described bearing pin.
Preferably, in described axis pin base weldment away from one end of described location-plate around the axle body of described bearing pinIt is provided with the axle body frictional fit of cushion rubber, described cushion rubber and described bearing pin.
Preferably, described support is L bracket, and one of them right-angle side is fixed on described axis pin base weldmentOn on outer surface away from described upper beam, another right-angle side is fixed with described electric switch part.
After have employed technique scheme, compared with prior art, have the advantages that
1. according to the locking device of elevator of the present utility model, it is possible to realize car locking, electic protection andThe function of hand-reset, reliable and secure and easy for installation, simple to operate, it is convenient to adjust, practical.
Accompanying drawing explanation
Fig. 1 is the perspective view of the locking device of the elevator meeting this utility model preferred embodiment；
Fig. 2 be the locking device of the elevator meeting this utility model preferred embodiment be positioned at initial positionSchematic diagram；
Fig. 3 be the locking device of the elevator meeting this utility model preferred embodiment be positioned at latched positionSchematic diagram.
Reference:
1-axis pin base weldment；
2-bearing pin, 21-front end, 22-axle body, 23-rear end, 24-handle；
3-location-plate, 31-positions hole；
4-electric switch part；
5-upper beam；
6-spring；
7-cushion rubber；
8-support；
9-guide rail.
Detailed description of the invention
Of the present utility model advantage is expanded on further below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, Figure 2 and Figure 3, the lock of a kind of elevator of this utility model preferred embodiment is metTight device, including axis pin base weldment 1, location-plate 3, bearing pin 2 and electric switch part 4, axis pin base weldmentThe side surface of 1 upper beam 5 being fixed on elevator, location-plate 3 is fixed on the car guide rail being installed on well enclosureOn 9, location-plate 3 offering hole 31, location, bearing pin 2 level runs through axis pin base weldment 1, bearing pin 2Being coaxially disposed with hole 31, location, electric switch part 4 is fixed on axis pin base weldment 1 near location-plate 3One end and vertical with bearing pin 2, be moved horizontally to insert from initial position when bearing pin 2 is applied in external forceWhen positioning the latched position in hole 31, electric switch part 4 is with bearing pin 2 interference fit thus locks elevator,The electric loop simultaneously making elevator disconnects, and enters inspecting state.When maintainer needs to carry out elevatorDuring maintenance, can manually promote bearing pin 2 so that it is insert in the hole, location 31 of location-plate 3, simultaneouslyInterference fit after contacting with electric switch part 4, thus lock elevator, disconnect electric loop, maintainerJust the elevator entering inspecting state can be overhauled.After maintainer overhauls, by pullingHandle 24, makes bearing pin 2 leave hole 31, location, departs from electric switch part 4, thus unlock,Connect electric loop, make elevator again to devote oneself to work.
Preferably, bearing pin 2 includes front end 21, axle body 22 and rear end 23, when bearing pin 2 is in initial bitWhen putting, front end 21 is between axis pin base weldment 1 and location-plate 3, and axle body 22 houses and welds with axis pin baseIn part 1, rear end 23 is the operating side of the remotely located plate 3 exposing axis pin base weldment 1, when bearing pin 2When being in the locked position, hole 31, location is inserted in front end 21, and a part for axle body 22 stretches out axis pin base welderingPart 1 and electric switch part 4 interference fit, another part of axle body 22 is still housed in axis pin base weldment 1In.
Preferably, the external diameter of front end 21 is less than the external diameter of axle body 22, electric switch part 4 and axle body 22The friction side of interference fit is stretched on the Section Space between the external diameter of front end 21 and the external diameter of axle body 22In.
Preferably, the axle body 22 of bearing pin 2 is fixed with axis pin base weldment 1 by a spring 6, spring 6One end be fixed on axis pin base weldment 1 in one end of remotely located plate 3, the other end of spring 6 is fixed onOn the axle body 22 of bearing pin 2.By the spring 6 being located in axis pin base weldment 1, level can be additionally providedThe frictional force in direction, strengthens locking effect.
Preferably, in axis pin base weldment 1, one end of remotely located plate 3 sets around the axle body 22 of bearing pin 2It is equipped with cushion rubber 7, cushion rubber 7 and axle body 22 frictional fit of bearing pin 2.The setting of cushion rubber 7 enables to inspectionRepair personnel more smooth and easy and smooth during promoting and pulling bearing pin 2.
Preferably, support 8 is L bracket 8, and one of them right-angle side is fixed on axis pin base weldment 1On outer surface away from upper beam 5, another right-angle side is fixed with electric switch part 4.
Locking device according to elevator of the present utility model, it is possible to realize car locking, electic protection and handsThe dynamic function resetted, reliable and secure and easy for installation, simple to operate, it is convenient to adjust, practical.
It should be noted that, embodiment of the present utility model has preferably implementation, and not to this practicalityNovel making any type of restriction, any one skilled in the art is possibly also with the skill of the disclosure aboveArt content alteration or be modified to equivalent effective embodiment, as long as without departing from technical solutions of the utility modelContent, any amendment above example made according to technical spirit of the present utility model or equivalent variationsAnd modify, all still fall within the range of technical solutions of the utility model.