CN102514993A

CN102514993A - Safety device for elevator maintenance

Info

Publication number: CN102514993A
Application number: CN201110446524XA
Authority: CN
Inventors: 朱卫华
Original assignee: SJEC Corp
Current assignee: SJEC Corp
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-06-27

Abstract

The invention discloses a safety device for elevator maintenance. A trigger piece is rotated to different positions which correspond to a normal working state and a maintenance state of an elevator; when the elevator normally works, the trigger piece is locked by a locking mechanism, and the trigger piece triggers a first switch and is separated from a second switch, so that the normal operation of the elevator is ensured; when the elevator is required to be maintained, the locking mechanism is unlocked, so that the trigger piece can be rotated to another position, triggers the second switch and is separated from the first switch to inhibit the elevator from operating; meanwhile, a supporting surface of a support piece supports the trigger piece, so that if the elevator accidentally falls during maintenance, a buffer at the bottom of a cage of the elevator impacts the trigger piece on the support surface, the elevator is stopped by the trigger piece and is prevented from further falling, and a safety space between the support piece and a pit can protect a worker performing maintenance in the pit to avoid casualty accidents.

Description

A kind of elevator maintenance safety device

Technical field

the present invention relates to a kind of elevator maintenance safety device.

Background technology

if falling unexpectedly appears in elevator, then can hurt the service personnel that carries out service work at pit when elevator overhauls, cause safety misadventure.

Summary of the invention

are if thereby the purpose of this invention is to provide to fall when elevator overhauls then can strike triggers the maintenance safety device that part in time makes elevator stop.

are for achieving the above object; The technical scheme that the present invention adopts is: a kind of elevator maintenance safety device; Comprise the strut member that is fixed on the cage guide, rotate the triggering part that is arranged on the said strut member, be arranged on and after being touched, send first switch that allows the elevator run signal on the said strut member, be arranged on the said strut member and can after being touched, send the second switch of forbidding the elevator run signal; Said triggering part is positioned at the below at the bottom of the elevator sedan-chair; The survival space that can hold service personnel is arranged between said strut member and the elevator pit, have on the said strut member can the said triggering part of support the support face, said elevator has normal working and inspecting state; When said elevator is in normal working; Said triggering part touches said first switch, and this triggering part and said second switch are separated, and this triggering part breaks away from the support face of said strut member; When said elevator was in inspecting state, said triggering part and said first switch were separated, and this triggering part touches said second switch, and the triggering part is stated in said support face support residence; When said elevator was in inspecting state and this elevator and accidental falling occurs, the energy disperser at the bottom of this elevator sedan-chair impinged upon on the triggering part of said support face; Be provided with the lockout mechanism that when said elevator is in normal working, locks this triggering part between said triggering part and the said strut member.

preferably, said support face is horizontally disposed with, said triggering part is strip, when said elevator was in normal working, said triggering part vertically was provided with; When said elevator was in inspecting state, said triggering part was horizontally set on the said support face of level.

are as a kind of concrete embodiment; Said lockout mechanism comprises perforation, the latch that is opened on said strut member, the said triggering part; When said elevator was in normal working, said latch was inserted in the perforation of said strut member and said triggering part.

owing to the utilization of technique scheme, the present invention compared with prior art has advantage: trigger part to different position through rotating, be in normal working and inspecting state corresponding to elevator; When the elevator normal operation, rely on lockout mechanism to lock the triggering part, trigger part and touch first switch this moment; And be separated with second switch, guarantee that like this elevator normally moves, when needs maintenance elevator; The mechanism that unlocks can rotate like this and trigger part to another position, makes that triggering part touches second switch; And be separated with first switch, forbid the elevator operation, this moment, the support face support of strut member firmly triggered part; If falling unexpectedly appearred between turn(a)round in elevator, then the energy disperser at the bottom of the elevator sedan-chair can impinge upon on the triggering part of support face, through triggering part elevator is stopped; Stop further falling of elevator, the survival space between strut member and the pit can be protected the staff who in pit, overhauls, and avoids occurring casualty accident.

Description of drawings

Accompanying drawing 1 is a scheme drawing of the present invention;

Accompanying drawing 2 is an I place enlarged drawing in the accompanying drawing 1;

Accompanying drawing 3 be in the accompanying drawing 2 A to scheme drawing;

Accompanying drawing 4 in the accompanying drawing 1 along the partial schematic diagram of analysing and observe of B-B direction, wherein trigger part vertically to be provided with, during corresponding to the elevator normal operation;

accompanying drawing 5 is the partial schematic diagram of analysing and observe of the present invention, wherein triggers part to be horizontally set on the horizontal support face, when detecting corresponding to elevator.

The specific embodiment

Structure of the present invention is further set forth below in conjunction with accompanying drawing in .

are referring to shown in Fig. 1-5; A kind of elevator maintenance safety device comprises the strut member 2 that is fixed on the cage guide 1, rotates the triggering part 4 that is arranged on the strut member 2, is arranged on and can after being touched, sends first switch 6 that allows the elevator run signal on the strut member 2, be arranged on the strut member 2 and can after being touched, send the second switch 7 of forbidding the elevator run signal through turning cylinder 5.In Fig. 1, strut member 2 clamps guide rail 1 with pressing plate 11 matching and fixing, realizes strut member 2 fixing on guide rail 1.Trigger the below at the bottom of part 4 is positioned at the elevator sedan-chair, the survival space that can hold service personnel is arranged between strut member 2 and the elevator pit, have the support face 3 that can support triggers part 4 on the strut member 2; In Fig. 1, support face 3 is horizontally disposed with, and triggers part 4 and is strip; Elevator has normal working and inspecting state, corresponds respectively to triggering part 4 and is in the different rotation position, when elevator is in normal working; Trigger part 4 and vertically be provided with, trigger part 4 this moment and touch first switch 6, this triggering part 4 is separated with second switch 7; Guarantee the normal operation of elevator like this, as shown in Figure 4, trigger the support face 3 that part 4 breaks away from strut member 2; When needs maintenance elevator, rotate and trigger part 4 to level attitude, as shown in Figure 5; Horizontal support face 3 supports of strut member 2 firmly trigger part 4, trigger the part 4 and first switch 6 and are separated, and this triggers part 4 and touches second switch 7; The then elevator operation that is under an embargo is when elevator overhauls, if falling unexpectedly appears in elevator; Then the energy disperser at the bottom of the elevator sedan-chair can impinge upon on the level triggering part 4 of support face 3, through triggering part 4 elevator is stopped, and stops further falling of elevator; Survival space between strut member 2 and the pit can be protected the staff who in pit, overhauls, and avoids occurring casualty accident.Trigger between part 4 and the strut member 2 and be provided with the lockout mechanism 10 that when elevator is in normal working, locks this triggering part 4.This lockout mechanism 10 comprises perforation, the latch 8 that is opened on strut member 2, the triggering part 4; After the elevator maintenance finishes, will trigger part 4 and rotate to vertical position, as shown in Figure 1; Then latch 8 is inserted strut member 2 and the perforation that triggers part 4; Realize triggering the locking of part 4 on strut member 2, trigger part 4 simultaneously and touch first switch 6, elevator can normal operation.When needing the maintenance elevator; Latch 8 is extracted strut member 2 or triggered the perforation of part 4, then trigger on the support face 3 that part 4 can turn to level, touch second switch 7; Forbid the elevator operation, trigger part 4 through level and can stop the service personnel in the used during elevator falling injury pit.The operation of latch 8 for ease is provided with elastic component 9 between latch 8 and the strut member 2, and this elastic component 9 is used to provide latch 8 elastic-restoring forces; In Fig. 2-3, overcome the elastic-restoring force of elastic component 9, latch 8 is extracted the perforation that triggers part 4 after; Can rotate and trigger part 4, when triggering part 4 is repositioned to vertical position, under the elastic-restoring force of elastic component 9; Latch 8 inserts in the perforation that triggers part 4 automatically, locks to trigger part 4.

Claims

1. elevator maintenance safety device; It is characterized in that: comprise the strut member that is fixed on the cage guide, rotate the triggering part that is arranged on the said strut member, be arranged on and after being touched, send first switch that allows the elevator run signal on the said strut member, be arranged on the said strut member and can after being touched, send the second switch of forbidding the elevator run signal; Said triggering part is positioned at the below at the bottom of the elevator sedan-chair; The survival space that can hold service personnel is arranged between said strut member and the elevator pit; Have on the said strut member can the said triggering part of support the support face; Said elevator has normal working and inspecting state, and when said elevator was in normal working, said triggering part touched said first switch; This triggering part and said second switch are separated, and this triggering part breaks away from the support face of said strut member; When said elevator was in inspecting state, said triggering part and said first switch were separated, and this triggering part touches said second switch, and the triggering part is stated in said support face support residence; When said elevator was in inspecting state and this elevator and accidental falling occurs, the energy disperser at the bottom of this elevator sedan-chair impinged upon on the triggering part of said support face; Be provided with the lockout mechanism that when said elevator is in normal working, locks this triggering part between said triggering part and the said strut member.

2. a kind of elevator maintenance safety device according to claim 1, it is characterized in that: said support face is horizontally disposed with, and said triggering part is strip, and when said elevator was in normal working, said triggering part vertically was provided with; When said elevator was in inspecting state, said triggering part was horizontally set on the said support face of level.

3. a kind of elevator maintenance safety device according to claim 1; It is characterized in that: said lockout mechanism comprises perforation, the latch that is opened on said strut member, the said triggering part; When said elevator was in normal working, said latch was inserted in the perforation of said strut member and said triggering part.