CN202542653U

CN202542653U - Dumb waiter door lock

Info

Publication number: CN202542653U
Application number: CN2012202023822U
Authority: CN
Inventors: 武成伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-08
Filing date: 2012-05-08
Publication date: 2012-11-21
Anticipated expiration: 2022-05-08

Abstract

The utility model relates to a dumb waiter door lock, which comprises a movable lock hook assembly and a fixed lock plate assembly. The movable lock hook assembly mainly comprises a lock hook back plate, a lock hook and a switch moving contact, wherein the end of the lock hook is provided with a boss, an inclined plane is arranged between the boss and the bottom end face, the upper end of the lock hook is movably connected with the lock hook back plate, and the switch moving contact is arranged at the end of the lock hook; the fixed lock plate assembly mainly comprises a lock back plate and a switch fixed contact, wherein a transition bent plate is arranged above the lock back plate, and the switch fixed contact is arranged below the transition bent plate; and the boss part of the lock hook is positioned below the transition bent plate, and the switch moving contact is inserted into the switch fixed contact. The door lock is simple in structure; a mechanical lock is linked with an electric appliance switch, so that the defect that the electric appliance switch is kept in a turn-off state when the mechanical lock is unlocked is overcome, and the safety performance of the dumb waiter door lock is improved.

Description

The dumb waiter door lock

Technical field

The utility model relates to a kind of dumb waiter door lock, and the vertical center opening door that is used for the electrification elevator is with lock.

Background technology

At present, the vertical center opening door usefulness lock of elevator is generally mechanical lock and electric switch moves respectively; May produce mechanical lock and unlocked, and after the electric switch action, can directly respond and exhale the ladder operation elevator; Such elevator door exists potential safety hazard, even safety misadventure takes place.

Summary of the invention

The technical matters that the utility model will solve provides a kind of dumb waiter door lock; This door lock is not only simple in structure; And make mechanical lock and electric switch produce the interlock reaction; Avoided under the state that mechanical lock opens, the disadvantage that electric switch also is kept closed, thus improved the safety performance of door lock of elevator.

For overcoming the above problems; The concrete technical scheme of the utility model is following: a kind of dumb waiter door lock, comprise movable lock hook assembly and pin board component, and movable lock hook assembly mainly is made up of latch hook backboard, latch hook and switch movable contact; Wherein the latch hook end that is is provided with boss; Be provided with the inclined-plane between boss and bottom face, the upper end of latch hook and latch hook backboard flexibly connect, and are provided with switch movable contact in the end of latch hook; The pin board component is mainly decided contact by lock backboard and switch and is formed, and the top of wherein locking backboard is provided with the transition bending plate, and the below of transition bending plate is provided with switch and decides contact; The projection section of latch hook is positioned at the below of transition bending plate, and the while switch movable contact is inserted into switch to be decided in the contact.

The below of described lock backboard is provided with electromagnet; The electromagnet mandrel top of electromagnet connects the right angle end of L type fork; The minor face of fork and oscillating axle flexibly connect, and the long limit of fork connects finger, are provided with strip hole on the surface of lock backboard; Finger passes in rectangular, and finger contacts with the boss of latch hook.

The middle part of described latch hook is connected with the latch hook backboard through turning cylinder, and the outer, coaxial of turning cylinder is provided with rotary axle box; Surface at the latch hook backboard is provided with fixed cover, connects spring guide pillar on the fixed cover, is provided with circular hole at the afterbody of latch hook; Spring guide pillar is inserted in this circular hole; On spring guide pillar, be provided with spring, an end of spring contacts with the step of spring guide pillar, and the other end of spring contacts with latch hook.

The structure that this dumb waiter door lock adopts latch hook, switch movable contact and switch to decide contact; The physical construction and the electric switch of door lock are combined closely, only to guarantee under the closed state of mechanical lock the closing of contact of electric switch; Electric switch is connected, thereby has guaranteed the safety of elevator.

Fixedly on the jam plate electromagnet and finger structure are being set, when making the electromagnet action, can driving the finger motion, latch hook is being stirred, mechanical lock is opened.

Spring and spring guide pillar structure are set in movable lock hook assembly, make latch hook have reset function, freely with the switch motion that guarantees mechanical lock.

Description of drawings

Fig. 1 is the structural representation of dumb waiter door lock.

Fig. 2 is the front view of movable lock hook assembly.

Fig. 3 is the left view of movable lock hook assembly.

Fig. 4 is the birds-eye view of movable lock hook assembly.

Fig. 5 is the front view of pin board component.

Fig. 6 is the left view of pin board component.

Fig. 7 is the birds-eye view of pin board component.

Fig. 8 is a dumb waiter door-lock opening view.

Fig. 9 is about to the closed condition scheme drawing for the dumb waiter door lock.

The specific embodiment

Extremely shown in Figure 7 like Fig. 1; A kind of dumb waiter door lock comprises movable lock hook assembly 10 and pin board component 20, and movable lock hook assembly 10 mainly is made up of latch hook backboard 11, latch hook 16 and switch movable contact 15; Wherein latch hook 16 end that is is provided with boss; Be provided with the inclined-plane between boss and bottom face, the upper end of latch hook 16 and latch hook backboard 11 flexibly connect, and are provided with switch movable contact 15 in the end of latch hook 16; The pin board component is mainly decided contact 25 by lock backboard 21 with switch and is formed, and the top of wherein locking backboard 21 is provided with transition bending plate 29, and the below of transition bending plate 29 is provided with switch and decides contact 25; The projection section of latch hook 16 is positioned at the below of transition bending plate 29, and while switch movable contact 15 is inserted into switch to be decided in the contact 25.Collision with latch hook backboard 1 when guaranteeing latch hook 16 actions produces noise, rubber pad 17 can be set, with the minimizing noise in the latch hook backboard.

Like Fig. 5, shown in 6 and 7; The below of described lock backboard 21 is provided with electromagnet 28, and electromagnet mandrel 27 tops of electromagnet 28 connect the right angle end of L type fork 26, and the minor face of fork 26 and oscillating axle 23 flexibly connect; The long limit of fork 26 connects finger 24; Surface at lock backboard 21 is provided with strip hole, and finger 24 passes in rectangular, and finger 24 contacts with the boss of latch hook 16.Produce noise for reducing finger 24 with 21 of lock backboards, on lock backboard 21, be provided with noise abatement rubber cushion 22.

Like Fig. 2, shown in 3 and 4, the middle part of described latch hook 16 is connected with latch hook backboard 11 through turning cylinder 18, and the outer, coaxial of turning cylinder 18 is provided with rotary axle box 19; Be provided with fixed cover 12 on the surface of latch hook backboard 11; Connect spring guide pillar 14 on the fixed cover 12; Afterbody at latch hook 16 is provided with circular hole, and spring guide pillar 14 is inserted in this circular hole, on spring guide pillar 14, is provided with spring 13; One end of spring 13 contacts with the step of spring guide pillar 14, and the other end of spring 13 contacts with latch hook 16.

Like Fig. 1, Fig. 8 and shown in Figure 9, its dynamic working process is: movable lock hook assembly 10 is the upper places of putting of last door leaf that are fixed on vertical center opening door, slides up and down jointly and moves with last door leaf, and the pin board component is installed on the slideway, and stationkeeping is motionless.

When last door leaf and following door leaf closed condition; Like Fig. 8 and shown in Figure 9, after the upper surface of lock backboard 21 touches the inclined-plane of latch hook 16, be about to latch hook 16 and lift; Door leaf is gradually near after cut out up and down; Directly snap fit onto the place, lower surface of transition bending plate 29 behind the side of latch hook 16 through transition bending plate 29, the switch movable contact 15 on the latch hook 16 is decided contact 25 connections with switch simultaneously, makes elevator can exhale the ladder operation.

When last door leaf and following door leaf need be opened; Electromagnet 28 energisings are shunk electromagnet mandrel 27, and fork 26 is rotated with oscillating axle 23; Being positioned at fork 26 end bonded assembly fingers 24 upwards lifts; Latch hook 16 is lifted, thereby when door leaf separated up and down, mechanical latch hook also separated with electric switch simultaneously.

Claims

1. dumb waiter door lock; Comprise movable lock hook assembly (10) and pin board component (20); It is characterized in that: movable lock hook assembly (10) mainly is made up of latch hook backboard (11), latch hook (16) and switch movable contact (15), and wherein latch hook (16) end that is is provided with boss, is provided with the inclined-plane between boss and bottom face; The upper end of latch hook (16) and latch hook backboard (11) flexibly connect, and are provided with switch movable contact (15) in the end of latch hook (16); The pin board component is mainly decided contact (25) by lock backboard (21) and switch and is formed, and the top of wherein locking backboard (21) is provided with transition bending plate (29), and the below of transition bending plate (29) is provided with switch and decides contact (25); The projection section of latch hook (16) is positioned at the below of transition bending plate (29), and while switch movable contact (15) is inserted into switch to be decided in the contact (25).

2. dumb waiter door lock as claimed in claim 1; It is characterized in that: the below of described lock backboard (21) is provided with electromagnet (28); Electromagnet mandrel (27) top of electromagnet (28) connects the right angle end of L type fork (26); The minor face of fork (26) and oscillating axle (23) flexibly connect, and the long limit of fork (26) connects finger (24), is provided with strip hole on the surface of lock backboard (21); Finger (24) passes in rectangular, and finger (24) contacts with the boss of latch hook (16).

3. according to claim 1 or claim 2 dumb waiter door lock, it is characterized in that: the middle part of described latch hook (16) is connected with latch hook backboard (11) through turning cylinder (18), and the outer, coaxial of turning cylinder (18) is provided with rotary axle box (19); Be provided with fixed cover (12) on the surface of latch hook backboard (11); Fixed cover (12) is gone up and is connected spring guide pillar (14); Afterbody at latch hook (16) is provided with circular hole, and spring guide pillar (14) is inserted in this circular hole, on spring guide pillar (14), is provided with spring (13); One end of spring (13) contacts with the step of spring guide pillar (14), and the other end of spring (13) contacts with latch hook (16).