Elevator center opening door is locked
The invention belongs to elevator technology field, particularly relate to a kind of elevator center opening door and lock.
Existing elevator door lock device, when elevator switch door, can not detect the on off state of latch hook, can not realize electromechanical interlock, there is potential safety hazard.Lock shaft and shaft room quality of fit not high, easily get rusty, cause door lock not work.Complex structure, produces, safeguards inconvenience.
Summary of the invention
For the technical problem of above-mentioned existence, the invention provides a kind of elevator center opening door and lock.Latch hook on off state can be realized detect, improve elevator safety performance.
The object of the invention is to be achieved through the following technical solutions:
The present invention includes shift fork, external-open lock shaft, also comprise the upper latch fitting being connected to door-plate, be connected to the lower latch fitting of lower door-plate, latch hook, jam plate, lockwheel, dead point seat, double contact switch and Y type contact, described jam plate is connected on the slideway of elevator door, latch hook is rotationally connected with on jam plate, during locking states, latch hook locking end snaps in the perforate of latch fitting and locks, double contact switch is provided with between jam plate and lower latch fitting, Y type contact is connected on latch fitting, dead point seat is arranged on latch hook, double contact switch, dead point seat holding wire connects outer switch board, lockwheel is arranged on the lockwheel axis hole of latch hook by lockwheel axle, described latch hook one end is with the locking end coordinated with upper latch fitting, the other end is near double contact switch, and also with the guide end coordinated with jam plate, the rotary shaft hole be rotationally connected with jam plate, the lockwheel axis hole that is connected with lockwheel on it, described close double contact switch is relative to jam plate end face with the arcwall face coordinated with shift fork and locking confined planes, and corresponding opposite side is Weight plate, the described guide end coordinated with jam plate is bow, and it is set with spring, the locking end that described and upper latch fitting coordinates is hook tongue structure, and hook tongue upper end is with guiding surface, and lower end is with anticreep inclined-plane.
Further, the described rotary shaft hole be connected with jam plate is connected by bearing fit with the axle sleeve on jam plate by rotating shaft, and the rotating shaft end stretching out jam plate end is also provided with E type back-up ring.
Further, described jam plate on its base plate three side respectively with bending structure, be respectively: the connecting plate be rotationally connected by axle with latch hook, the limiting plate on both sides adjacent with this connecting plate and the bending plate be connected with double contact switch, base plate has the guiding perforate coordinated with latch hook guide end; The base plate of jam plate has the external-open lock shaft hole coordinated with external-open lock shaft, connect shift fork by external-open lock shaft, connecting plate has the axle sleeve hole be connected with latch hook.
Further, described limiting plate width H is 9-11mm.
Further, on described dead point seat with the symmetrical grooves of installation two dead point and the installing hole that is installed on latch hook.
Beneficial effect of the present invention:
1. the present invention is by double contact switch and Y type contact transmission of signal, clashes into lockwheel by door cutter, and the action of band moveable lock hook, realize unblanking, loop of the door lock disconnects simultaneously, safe and reliable, and structure is simple, easy to assembly, easily operates.
2. latch hook structure of the present invention, both convenient coordinate to lead with jam plate lock, again with the arcwall face coordinated with shift fork and locking confined planes, not only coordinate with shift fork smooth, reach again spacing effect.The spring of latch hook guide end suit, also can not cause unblanking under spring failure state; The setting of Weight plate, even if when without spring, because Action of Gravity Field also can not cause unblanking.With latch hook limiting plate structure on jam plate, for limiting the confined planes of unblanking of latch hook.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the latch hook perspective view in Fig. 1.
Fig. 4 is the plane structure schematic diagram of Fig. 3.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is upper latch fitting structural representation in Fig. 1.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the top view of Fig. 6.
Fig. 9 is lower lock member structure schematic diagram in Fig. 1.
Figure 10 is the top view of Fig. 9.
Figure 11 is the left view of Fig. 9.
Figure 12 is jam plate perspective view in Fig. 1.
Figure 13 is the plane structure schematic diagram of Figure 12.
Figure 14 is the right view of Figure 13.
Figure 15 is dead point holder structure schematic diagram in Fig. 1.
Figure 16 is the top view of Figure 15.
In figure: 1. descend latch fitting, 101. moving contact switch installing plates, 21. stationary contact switches, 22. moving contact switch;
3. jam plate, 31. bending plates, 32. external-open lock shaft holes, 33. base plates, 34. guiding perforates, 35. limiting plates; 36. connecting plates, 37. axle sleeve holes;
4. latch hook, 401. locking confined planes, 402. arcwall faces, 403. Weight plates, 404. rotary shaft holes, 405. guide ends, 406. lockwheel axis holes, 407. locking ends, 408. guiding surfaces, 409. anticreep inclined-planes, 411. dead point seat locking holes, 412. dead point seat fixed ends, 413. unblank confined planes;
5. go up latch fitting, 51. first junction plates, 52. notches, 53.Y type contact junction plate, 54. second junction plates, 55. bending plates, 56. perforates, 57. swash plates;
6. slideway, 7.Y type contact, 8. dead point seat, 81. grooves, 82. installing holes, 9. lockwheel, 10. lockwheel axle, 11. back-up rings, 12. connecting axles, 13. shift forks, 14. external-open lock shafts.
Detailed description of the invention
The present invention is specifically described below in conjunction with drawings and Examples.
Embodiment: as shown in Figure 1-Figure 3, the present invention includes shift fork 13, external-open lock shaft 14, be connected to the upper latch fitting 5 of door-plate, be connected to the lower latch fitting 1 of lower door-plate, latch hook 4, jam plate 3, lockwheel 9, dead point seat 8, double contact switch and Y type contact 7, described jam plate 3 is connected on the slideway 6 of elevator door by the jam plate installing hole on it, latch hook 4 is rotationally connected with on jam plate 3, during locking, latch hook locking end 407 snaps in the perforate 56 of latch fitting 5 and locks, double contact switch 2 is provided with between jam plate 3 and lower latch fitting 1, Y type contact 7 is connected on latch fitting, dead point seat 8 is sleeved on latch hook, double contact switch 2 is connected outer switch board with dead point seat 8 holding wire, detect latch hook door-closing in-place, lockwheel 9 is arranged on the lockwheel axis hole 406 of latch hook 4 by lockwheel axle 10.
Double contact switch is outsourcing piece, comprises stationary contact switch 21, moving contact switch 22, and stationary contact switch 21 is fixed on the stationary contact installing hole 39 of the bending plate 31 of jam plate 3, and moving contact switch 22 is fixed on lower latch fitting.
As shown in Figure 3-Figure 5, described latch hook 4 one end is with the locking end 407 coordinated with upper latch fitting 5, the other end is near double contact switch 2, and also with the guide end 405 coordinated with jam plate 3, the rotary shaft hole 404 be rotationally connected with jam plate 3, the lockwheel axis hole 406 that is connected with lockwheel 9 on it, described close double contact switch 2 is relative to jam plate 3 end face with the arcwall face 402 coordinated with shift fork 13 and locking confined planes 401, and corresponding opposite side is Weight plate 403.The guide end 405 that latch hook 4 coordinates with jam plate 3 is bow, it is set with spring; Can not cause unblanking under spring failure state.The locking end 407 that described and upper latch fitting 5 coordinates is hook tongue structure, and hook tongue upper end is with guiding surface 408, and lower end is with anticreep inclined-plane 409.Described Weight plate 403 plate face and jam plate 3 base plate 33 are parallel when locking states, and coordinate with shift fork 13 in latch hook 4 for arcwall face 402, the end of arcwall face 402 is locking confined planes 401, and locking confined planes 401 end face is the plane suited with jam plate 3 base plate 33.The rotary shaft hole 404 that described latch hook 4 is connected with jam plate 3 is connected by bearing fit with the axle sleeve be welded on jam plate 3 by rotating shaft, and the rotating shaft end stretching out jam plate 3 end is also provided with E type back-up ring 11, and for fixing latch hook, installation accuracy increases.The dead point holding wire cabling of through wires hole on dead point seat, dead point cover for seat is contained in dead point seat fixed end 412, is locked by dead point seat locking hole 411.
As shown in Figure 12-Figure 14, described jam plate 3 on its base plate 33 3 side respectively with bending structure, be respectively: the connecting plate 36 be rotationally connected by axle with latch hook 4, with the limiting plate 35 on these adjacent both sides of connecting plate 36 and the bending plate 31 that is connected with double contact switch 2, base plate 33 has the guiding perforate 34 coordinated with latch hook locking end 407.The base plate 33 of jam plate 3 has the external-open lock shaft hole 32 coordinated with external-open lock shaft 14, connect (welding) shift fork 13 by external-open lock shaft 14, connecting plate 36 has the axle sleeve hole 37 be connected with latch hook 4, below axle sleeve hole 37, have dead point through wires hole.Described limiting plate 35 width H is 9-11mm, the confined planes 413 of spacing latch hook 407 when unblanking.
As Figure 6-Figure 8, described upper latch fitting 5 is with the grooved bending structure coordinated with elevator door slideway 6, notch 52 one end is the first junction plate 51 coordinated with slideway 6, the other end is Y type contact junction plate 53, extends on the second junction plate 54 of being connected have the perforate 56 locked with latch hook 4 with bottom land end face.Described second junction plate 54 descends latch fitting 1 end band to have swash plate 57 relatively, and the inclined-plane of described swash plate 57 and the guiding surface 408 of latch hook locking end 407 suit.End has the effect of reinforcement second junction plate 54 with bending plate 55.
As Figure 9-Figure 11, lower latch fitting 1 with the trench structure coordinated with slideway 6, with moving contact switch installing plate 101 on it.
As shown in Figure 15, Figure 16, with the groove 81 of installation two dead point and the installing hole being installed on latch hook 4 top centre seat fixed end 412 on described dead point seat 8, restriction dead point seat 8 moves horizontally, and dead point seat 8 is sleeved on latch hook 4, is connected and fixed by screw.
The course of work of the present invention:
When Room door closes, double contact switch is connected, press and select layer button, the action of door cutter is to attracting state, and door lock takes turns 9 actions to jam plate base plate 33 motion in the other direction, and latch hook 4 rotates around axis of rotation, latch hook locking end 407 is in engagement with the perforate 56 of upper latch fitting 5, loop of the door lock is connected, and now, layer door is in locking states.
When Elevator landing, the action of door cutter is to release conditions, the action of door lock wheel is moved to jam plate base plate 33 direction, latch hook 4 rotates around axis of rotation, and latch hook locking end 407 is thrown off with the perforate 56 of upper latch fitting 5, is in unlocking condition, loop of the door lock disconnects, now, layer door is in unlocking condition, and double contact switch disconnects.