CN202265282U

CN202265282U - Safety device for overhaul of elevator

Info

Publication number: CN202265282U
Application number: CN2011203749080U
Authority: CN
Inventors: 钱国强; 吴彬; 戴海平; 许振宇; 王薇
Original assignee: Suzhou Fuji Elevator Co Ltd
Current assignee: Suzhou Fuji Elevator Co Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-06-06
Anticipated expiration: 2021-09-29

Abstract

The utility model discloses a safety device for the overhaul of an elevator, wherein a non-automatic reset switch capable of sending a signal of opening an elevator safety circuit after being triggered is fixedly disposed on a fixed seat; a triggering element capable of triggering the non-automatic reset switch is fixedly disposed on a plunger; chutes extending along the sliding direction of the plunger are disposed on the lateral surfaces of the plunger; plug pins capable of being plugged in the chutes are disposed on the fixed seat; chute bottom surfaces at the both ends of each chute are recessed to form a concave pit for plugging the plug pin; and an elastic element for providing an elastic restoring force for the plug pins to stably plug the plug pins in the chutes or the concave pits is disposed between the plug pins and the fixed seat. Via the matching of the plug pins and the chutes, the plunger drives the triggering element to directionally slide on the fixed seat and trigger the non-automatic reset switch, so as to immediately open the elevator safety circuit; and the plunger is plugged in the plug hole of the fixed plate to achieve the relative fixation of a compartment and a guide rail; in this way, the plunger is ensured not to be broken due to the unexpected starting of the elevator based on mechanical structure and electric circuit, potential safety hazard is eliminated, and the personal safety of overhaul personal is ensured. The plunger can be located via the matching of the plug pins and the concave pits at the both ends of the chute, and the plunger is stably plugged in the plug hole or stably separated from the plug hole, thereby preventing the unexpected actions of the plunger during the movement or the overhaul of the elevator, and eliminating potential safety hazard.

Description

Elevator maintenance safety device

Technical field

the utility model relates to elevator maintenance safety device.

Background technology

In prior art, be set with permanent seat on the elevator car frame, be provided with plunger on the permanent seat slidably; Be fixed with adapter plate on the car guide rail; Offer jack on the adapter plate, when elevator overhauls, for avoiding car movement; Service personnel can insert plunger in the jack, realizes car fixing with respect to guide rail.Owing to lack registration device on the plunger, so in case the plunger involuntary maneuver can break away from jack; Cause elevator cab movement, jeopardize the personal safety of service personnel, perhaps when elevator normally moves; The involuntary maneuver of plunger makes plunger insert in the jack, and plunger may be fractureed like this.Further, plunger inserts jack and makes that car is fixed on theory of machines, but this moment elevator electric wiring such as safety return circuit lead to, in case elevator accidental activation like this, then plunger is fractureed, and causes safety misadventure.

Summary of the invention

thus the purpose of the utility model provides plunger when inserting jack that non-automatic reset switch is touched the elevator maintenance safety device that breaks off elevator safety loop; Can avoid the accidental activation of elevator like this; And realize in the pit of this safety device through latch insertion chute two ends that elevator plunger when normal operation is perhaps overhauled all is positioned, and has avoided the involuntary maneuver of plunger.

are for achieving the above object; The technical scheme that the utility model adopts is: elevator maintenance safety device; Comprise that the sedan-chair frame puts the beams in place, is arranged on the permanent seat of said sedan-chair frame on putting the beams in place, is opened in perforation on the said permanent seat, can be through plunger, car guide rail in the said perforation slidably, be fixed on adapter plate on the said car guide rail, be opened in the jack that can supply said plunger to insert on the said adapter plate; Be set with on the said permanent seat and can after being touched, send the non-automatic reset switch that breaks off the elevator safety loop signal; Be set with the touch part that can touch said non-automatic reset switch on the said plunger; Offer the chute that extends along the direction of slip of this plunger on the lateral surface of said plunger; Said permanent seat is provided with the latch that can be inserted in the said chute, and the groove bottom at said chute two ends all caves in, the pit that formation can supply said latch to insert; Be provided with between said latch and the said permanent seat and be used to provide this latch elastic-restoring force to make this latch stably insert the elastic component of said chute or said pit; Said elevator maintenance safety device has first mode of operation and second mode of operation, and when said elevator maintenance safety device was in first mode of operation, said plunger inserted said jack; Said touch part touches said non-automatic reset switch, and said latch stably is inserted in the pit of said chute one end; When said elevator maintenance safety device was in second mode of operation, said plunger broke away from said jack, and said touch part and said non-automatic reset switch are separated, and said latch stably is inserted in the pit of the said chute other end.

preferably, are set with connecting strap on the said permanent seat, the bending that makes progress of an end of said connecting strap; Formation is higher than the bent end of said permanent seat; Offer perforation on the opposite position of said bent end, said permanent seat, said latch can be through in the perforation of said bent end, said permanent seat slidably, and said elastic component adopts spring; This spring housing is on said latch, conflicts respectively on said latch and said bent end in the two ends of this spring.

as a kind of concrete embodiment, the cooperation through bolts and nuts on the said adapter plate has compressed pressing plate, and the both sides of the edge of said guide rail all are clamped between said adapter plate and the said pressing plate.

preferably, the head that said latch is used to insert said chute or said pit is tapered.

because the utilization of technique scheme, the utility model compared with prior art has advantage: in this elevator maintenance safety device, through cooperating of latch and chute; The plunger band touch part directed slip on permanent seat; And touch non-automatic reset switch, elevator safety loop is broken off, and plunger is inserted in the jack of adapter plate; Reach the relative fixed of car and guide rail; Guaranteed that from physical construction and electric wiring elevator can unexpected the startup and the plunger that fractures has been eliminated potential safety hazard, guarantees the personal safety of service personnel like this.No matter elevator is in normal operating condition or inspecting state; Through latch and cooperating of chute two ends pit locating plunger; Make plunger stably be inserted in the jack; Perhaps stably be separated with jack, when having prevented elevator motion or when maintenance plunger involuntary maneuver, eliminated potential safety hazard.

Description of drawings

Accompanying drawing 1 is for the master of the utility model looks scheme drawing one, and wherein plunger breaks away from jack;

Accompanying drawing 2 is for the master of the utility model looks scheme drawing two, and wherein plunger is inserted in the jack;

accompanying drawing 3 is the schematic top plan view of the utility model, and wherein plunger breaks away from jack.

The specific embodiment

The structure of the utility model is further set forth in below in conjunction with accompanying drawing.

are referring to shown in Fig. 1-3; Elevator maintenance safety device; Comprise the sedan-chair frame put the beams in place 8, be arranged on the sedan-chair frame put the beams in place 8 tops permanent seat 2, be opened in perforation on the permanent seat 2, can be through plunger 1, car guide rail 12 in the perforation slidably, be fixed on adapter plate 6 on the car guide rail 12, be opened in the jack that can supply plunger 1 to insert on the adapter plate 6; Cooperation through bolts and nuts on the adapter plate 6 has compressed pressing plate 13; The both sides of the edge of guide rail 12 all are clamped between adapter plate 6 and the pressing plate 13, and are as shown in Figure 3, thereby realize the fixing of adapter plate 6 and car guide rail 12.Be set with the non-automatic reset switch 4 that can after being touched, send disconnection elevator safety loop signal through switch adapter plate 3 on the permanent seat 2, be set with the touch part 7 that can touch non-automatic reset switch 4 on the plunger 1, offer the chute 14 that extends along the direction of slip of this plunger 1 on the lateral surface of plunger 1; Permanent seat 2 is provided with the latch 5 that can be inserted in the chute 14; In Fig. 1 and 2, be set with connecting strap 9 on the permanent seat 2, the bending that makes progress of an end of connecting strap 9; Formation is higher than the bent end 10 of permanent seat 2; Offer perforation on the opposite position of bent end 10, permanent seat 2, latch 5 can be through in the perforation of bent end 10, permanent seat 2 slidably, is provided with the elastic component 11 that is used to provide these latch 5 elastic-restoring forces between latch 5 and the permanent seat 2; Elastic-restoring force through elastic component 11 makes latch 5 stably insert in the chute 14; The groove bottom at chute 14 two ends all caves in, the pit 15 that formation can supply latch 5 to insert, and the elastic-restoring force through elastic component 11 can also make latch 5 stably insert in the pit 15; Elastic component 11 adopts spring; This spring housing is on latch 5, and conflict respectively on latch 5 and bent end 10 in the two ends of this spring, as illustrated in fig. 1 and 2.When the elastic force of latch 5 through spring is inserted in the pit 15 at chute 14 two ends respectively, be in normal operating condition and inspecting state, when first talking about elevator and being in normal operating condition corresponding to elevator; As shown in figs. 1 and 3, through the elastic force of elastic component 11, latch 5 is inserted in the pit 15 of plunger 1 upper hopper chute 14 1 ends; This moment, plunger 1 was positioned through latch 5, and it is mobile can not meet accident, and guaranteed that plunger 1 stably breaks away from jack; Touch part 7 is separated with non-automatic reset switch 4; This moment, elevator safety loop was normally connected, and guaranteed the normal operation of elevator, eliminated safe hidden trouble.When needs maintenance elevator, service personnel is enforced plunger 1, and the elastic force that latch 5 overcomes elastic component 11 detaches from the pit 15 of chute 14 1 ends, moves along chute 14; Elastic force through elastic component 11 is inserted in the pit 15 of chute 14 other ends then, and is as shown in Figure 2, and this moment, plunger 1 was positioned through latch 5 equally; It is mobile can not meet accident, and guarantees that plunger 1 stably inserts jack, and then lift car is fixing with respect to guide rail 12; Moreover, touch part 7 touches non-automatic reset switch 4, and switch 4 sends signal; Break off elevator safety loop, avoided the accidental activation of elevator, avoid the generation of safety misadventure.The head that moving of plunger 1 for ease, latch 5 are used to insert chute 14 or pit 15 is tapered, and the tapered slope of latch 5 heads is made guiding surface usefulness, is convenient to the disengaging of latch 5 from pit 15.

to sum up, in this elevator maintenance safety device, through cooperating of latch and chute; The plunger band touch part directed slip on permanent seat, and touches non-automatic reset switch, and elevator safety loop is broken off; And plunger is inserted in the jack of adapter plate; Reach the relative fixed of car and guide rail, elevator starts suddenly and the plunger that fractures has been eliminated potential safety hazard when physical construction and electric wiring have been avoided the plunger motion like this.No matter elevator is in normal operating condition or inspecting state, through cooperate the fixedly plunger of latch with pit, when having prevented elevator motion or when maintenance plunger action, eliminated potential safety hazard.

Claims

1. elevator maintenance safety device; Comprise that the sedan-chair frame puts the beams in place, is arranged on the permanent seat of said sedan-chair frame on putting the beams in place, is opened in perforation on the said permanent seat, can be through plunger, car guide rail in the said perforation slidably, be fixed on adapter plate on the said car guide rail, be opened in the jack that can supply said plunger to insert on the said adapter plate; It is characterized in that: be set with on the said permanent seat and can after being touched, send the non-automatic reset switch that breaks off the elevator safety loop signal; Be set with the touch part that can touch said non-automatic reset switch on the said plunger; Offer the chute that extends along the direction of slip of this plunger on the lateral surface of said plunger; Said permanent seat is provided with the latch that can be inserted in the said chute, and the groove bottom at said chute two ends all caves in, the pit that formation can supply said latch to insert; Be provided with between said latch and the said permanent seat and be used to provide this latch elastic-restoring force to make this latch stably insert the elastic component of said chute or said pit; Said elevator maintenance safety device has first mode of operation and second mode of operation, and when said elevator maintenance safety device was in first mode of operation, said plunger inserted said jack; Said touch part touches said non-automatic reset switch, and said latch stably is inserted in the pit of said chute one end; When said elevator maintenance safety device was in second mode of operation, said plunger broke away from said jack, and said touch part and said non-automatic reset switch are separated, and said latch stably is inserted in the pit of the said chute other end.

2. elevator maintenance safety device according to claim 1; It is characterized in that: be set with connecting strap on the said permanent seat; The bending that makes progress of one end of said connecting strap forms the bent end that is higher than said permanent seat, offers perforation on the opposite position of said bent end, said permanent seat; Said latch can be through in the perforation of said bent end, said permanent seat slidably; Said elastic component adopts spring, and this spring housing is on said latch, conflicts respectively on said latch and said bent end in the two ends of this spring.

3. elevator maintenance safety device according to claim 1, it is characterized in that: the cooperation through bolts and nuts on the said adapter plate has compressed pressing plate, and the both sides of the edge of said guide rail all are clamped between said adapter plate and the said pressing plate.

4. elevator maintenance safety device according to claim 1 is characterized in that: the head that said latch is used to insert said chute or said pit is tapered.