CN202272609U

CN202272609U - Elevator cage door locking device

Info

Publication number: CN202272609U
Application number: CN2011203897561U
Authority: CN
Inventors: 童安全; 励海云; 李雪枫; 林敏东
Original assignee: NINGBO SHENLING LIFT ACCESSORIES CO Ltd
Current assignee: NINGBO SHENLING LIFT ACCESSORIES CO Ltd
Priority date: 2011-10-14
Filing date: 2011-10-14
Publication date: 2012-06-13
Anticipated expiration: 2021-10-14

Abstract

The utility model discloses an elevator cage door locking device, which comprises a bow (13), a mounting plate (2), a movable locking hook (9) and a fixed locking hook (10) and a swing link (8), wherein the swing link (8) is rotatably connected and is meanwhile slidably connected to the mounting plate (2) and consists of two link arms, and the two link arms form an included angle; the end parts of the two link arms are connected with a first roller (1) and a second roller (7); the first roller (1) is in contact connection with the movable locking hook (9); and the second roller (7) is disconnected or contacted with the bow (13). After adoption of the structure, the difference in length of two swing links is large, so the action travel of the second roller is small under the condition that the action travel is guaranteed by the first roller of a door lock; accordingly, the distance between the second roller and the bow can be increased; and thus, the larger the adjustment allowance of a door lock gap, the higher the mounting and debugging efficiency; meanwhile, the failure rate in use of an elevator is also reduced.

Description

Elevator car door locking device

Technical field

The utility model relates to the elevator technology field, specifically is a kind of elevator car door locking device.

Background technology

Be to guarantee the safe operation of elevator, the safety device that control turnover elevator cab door is set is necessary, particularly seems particularly important during greater than 150mm when the distance between elevator hoistways inside face and the car sill.GB7588-2003 national standard 11.2.1 has regulation: the distance between elevator hoistways inside face and the car sill should be greater than 150mm, if car is equipped with the door of mechanical interlocking and can only opens in the district of unblanking, above-mentioned spacing is unrestricted.This is because elevator is not being unblanked to distinguish et out of order or had a power failure and when out of service, the passenger in the lift car can open car door by force and escape, but therefore passenger's this moment and do not know where car is in can damage the passenger; More dangerous is, when elevator faults recovers or incoming call again, and the malfunctioning switch of car door door-closing in-place, at this moment elevator can restart operation, causes bigger personal injury even brings life danger to the passenger.Disclosing grant number in the Chinese patent website is two patents of CN2763234Y and CN101081677B; First patent is to adopt to be fixed on hitting to bend and contact on the bumping wheel and being fixed on layer door gear in the hanging hook assembly on the door opener cross girder; The rotation of triggering latch hook, and the car door lock is opened; Second patent is that the roller that adopts to be fixed on the layer door hanging plate gets in the middle of two door cutter blades; Utilize the relative position of asynchronous door cutter door machine and layer door that layer door roller is contacted with blade; Thereby drive the latch hook rotation, trigger the electric switch action, the gate lock is opened.

But; More than the elevator car door locking device structure of these structures following shortcoming is arranged: in the present existing elevator car door locking device; The action of door lock generally will rely on the underaction of a cutter to accomplish; Some is to rely on moving of cutter blade of door to drive the car door lock, hits bow after the translation on the contact layer door, triggers and unblanks; Some is the independent car door lock of installing, but the unlatching of door lock all will cooperate with the unlatching of layer door synchronously, and therefore the stroke of most of car door lock gaps and adjusting all will receive the restriction that a cutter is opened layer every lock stroke that produces.In addition; Can not consider the open the door factor of stroke of a cutter though also have some door locks; But because the restriction of space and structure, and the electrical contact reliability reason such as can't guarantee, the adjusting play of door lock can only be controlled in the smaller scope; In general, this hit the bow and the door lock roller between the gap at 6mm～8mm.In sum, for an elevator, every layer all has one to hit bow; And door lock has only one, and the bow position in vertical direction of hitting of ground floor should be consistent in theory, but always has deviation during on-site installation; Like this, when surpassing this gap, door lock is not just opened; Just directly influence the serviceability of elevator, so fault rate will increase; In addition, the adjusting surplus in door lock gap is more little, and the efficient of installing and debugging is just low more.

The utility model content

The utility model technical matters to be solved is to provide the scalable surplus in a kind of door lock gap big, thereby make elevator car door locking device easy to install and use, as to reduce the elevator faults rate.

For solving the problems of the technologies described above; The elevator car door locking device that the utility model provides; Comprise and hit bow, adapter plate, movable latch hook and fixing latch hook, the described bow that hits is installed on the elevator door upper sill frame, and adapter plate is installed on the door opening machine for elevator upper sill frame; Fixedly latch hook is installed on the door opening machine for elevator link plate, and movable latch hook is hinged on the adapter plate.This elevator car door locking device also comprises fork; Described fork is rotationally connected and is slidingly connected on the adapter plate simultaneously; Fork form by two lever arms and two lever arm shapes in an angle, the end of described two lever arms be connected with respectively contact with movable latch hook bonded assembly first roller with hit second roller that bow is thrown off or contacted.

Described fork is rotationally connected and is slidingly connected on the adapter plate simultaneously and is meant; Elevator car door locking device also comprises slide rail and slide block; The two ends of described slide rail are connected with adapter plate, and slide block is slidingly connected on the slide rail, and the junction of two lever arms of described fork is hinged on the slide block.

Be socketed with stage clip on the described slide rail, an end and the adapter plate of described stage clip push against, and the end face of the other end and slide block pushes against.

The junction of described fork and slide block is provided with torsion spring, and an end that is provided with second roller of fork is provided with convexity, and an end and the convexity of described torsion spring push against, and the other end and slide block push against.

Be connected with the caging bolt of throwing off or contacting on the described fork with slide block.

After adopting above structure, the utility model compared with prior art has the following advantages:

1) because fork is made up of two lever arms and two lever arms have formed an angle, the size of fork on the entire length direction reduced, because of differing greatly of two fork length; So can be implemented under the situation of the door lock first roller safety action stroke; The actuating length of second roller is less, thereby can increase second roller and hit the distance between the bow, and this can reach 15mm apart from maximum; Like this; The adjusting surplus in door lock gap is just big more, and the efficient of installing and debugging is just high more, also reduces the fault rate that elevator uses simultaneously;

2) because the rotation of movable latch hook only needs rotation that slide block, fork, stage clip and torsion spring realize movable latch hook and resets, structure is very simple, installs and use also convenient;

3) after being connected with the caging bolt of throwing off with slide block or contact on the fork, fork presses when rotating being hit bow, reaches spacing purpose through caging bolt with contacting of slide block, and is simple in structure.

Description of drawings

Fig. 1 is the structural representation of the utility model elevator car door locking device closed condition.

Fig. 2 is the structural representation of A-A direction among Fig. 1.

Fig. 3 is the structural representation of the utility model elevator car door locking device opening.

Wherein: 1, first roller; 2, adapter plate; 3, stage clip; 4, slide rail; 5, caging bolt; 6, slide block; 7, second roller; 8, fork; 9, movable latch hook; 10, fixing latch hook; 11, torsion spring; 12, convexity; 13, hit bow; D, gap.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done explanation in further detail.

Structural representation by the utility model elevator car door locking device of Fig. 1～shown in Figure 3 can be known; It comprises hits bow 13, adapter plate 2, movable latch hook 9 and fixing latch hook 10; The described bow 13 that hits is installed on the elevator door upper sill frame; Adapter plate 2 is installed on the door opening machine for elevator upper sill frame, and fixedly latch hook 10 is installed on the door opening machine for elevator link plate, and movable latch hook 9 is hinged on the adapter plate 2.This elevator car door locking device also comprises fork 8; Described fork 8 is rotationally connected and is slidingly connected at simultaneously on the adapter plate 2; Fork 8 form by two lever arms and two lever arm shapes in an angle, the end of described two lever arms be connected with respectively contact with movable latch hook 9 bonded assembly first roller 1 with hit second roller 7 that bow 13 is thrown off or contacted.At second roller 7 and hit between the bow 13 and have a gap d, this gap d can reach 15mm, installs and the adjusting surplus during debugging increases thereby make.

Described fork 8 is rotationally connected and is slidingly connected at simultaneously on the adapter plate 2 and is meant; Elevator car door locking device also comprises slide rail 4 and slide block 6; The two ends of described slide rail 4 are connected with adapter plate 2; Slide block 6 is slidingly connected on the slide rail 4, and the junction of two lever arms of described fork 8 is hinged on the slide block 6.

Be socketed with stage clip 3 on the described slide rail 4, an end and the adapter plate 2 of described stage clip 3 push against, and the end face of the other end and slide block 6 pushes against.

Described fork 8 is provided with torsion spring 11 with the junction of slide block 6, and the end that fork 8 is provided with second roller 7 is provided with convexity 12, and an end of described torsion spring 11 pushes against with protruding 12, and the other end and slide block 6 push against.

Be connected with the caging bolt 5 of throwing off or contacting on the described fork 8 with slide block 6.

The working process of the utility model elevator car door locking device is following:

In normal running state, movable latch hook 9 is that snapping is closed, as shown in Figure 1 with fixing latch hook 10, and this moment, the car door lock can't be opened; Have only to onlocking zone ability auto-unlocking, this is because second roller 7 of fork 8 upper ends is positioned at the scope of hitting bow 13 at this moment, along with the action of door opener, and door opener link plate parallel motion; Driving also translation one segment distance of slide block 6, second roller 7 is contacted with hitting bow 13, is static because hit bow 13; Hit bow 13 second roller 7 blocked, and slide block 6 is wanted translation with the door opener link plate, the rotary middle spindle of fork 8 is fixed with slide block 6; Fork 8 also will be blocked but second roller 7 of fork 8 upper ends hits bow 13 along with slide block 6 translations, forces fork 8 to rotate around its rotary middle spindle; At this moment, first roller 1 of fork 8 lower ends produces downward displacement, i.e. first roller 1 plane rolling on movable latch hook 9; Thereby the rear end of depressing movable latch hook 9, force the front end of movable latch hook 9 to lift, thereby break away from and the fixing snapping of latch hook 10; Therefore, accomplish the process of unblanking, car door is opened.At closing time then slide block 6 with the reversing sense translation of door opener when opening the door; At fork 8 with slide block 6 translations away from hitting bow 13, at this moment, under the position-limiting action of the reset response of stage clip 3, torsion spring 11 and caging bolt 5; First roller 1 upwards lifts; Movable latch hook 9 falls away from an end of first roller thereupon simultaneously, and at this moment movable latch hook 9 is accomplished closed and locked action with fixedly latch hook 10 is closed once more.

When the elevator failover was parked in onlocking zone, door opener was out of service, and the passenger opens the car door lock through pushing car door aside, its principle of unblanking during with normal operating condition auto-unlocking identical.When the elevator failover was parked in outside the onlocking zone, because second roller 7 did not get into layer door and hit in the scope area of bow 13 this moment, second roller 7 can not hit with layer door and bend 13 and contact, and the car door lock can't be opened.When the elevator failover is parked in onlocking zone, and the unable car door of pushing aside of passenger, after the rescue group can open layer door lock outside with key; Push layer door aside a segment distance; Bow 13 is hit in 7 contacts of second roller, and car door tegillum door drives to be opened, and this moment, the car door lock was opened.

Claims

1. elevator car door locking device; Comprise and hit bow (13), adapter plate (2), movable latch hook (9) and fixing latch hook (10); The described bow (13) that hits is installed on the elevator door upper sill frame; Adapter plate (2) is installed on the door opening machine for elevator upper sill frame, and fixedly latch hook (10) is installed on the door opening machine for elevator link plate, and movable latch hook (9) is hinged on the adapter plate (2); It is characterized in that: this elevator car door locking device also comprises fork (8); Described fork (8) is rotationally connected and is slidingly connected at simultaneously on the adapter plate (2), fork (8) form by two lever arms and two lever arm shapes in an angle, the end of described two lever arms be connected with respectively contact with movable latch hook (9) bonded assembly first roller (1) with hit second roller (7) that bow (13) is thrown off or contacted.

2. elevator car door locking device according to claim 1; It is characterized in that: described fork (8) is rotationally connected and is slidingly connected at simultaneously on the adapter plate (2) and is meant; Elevator car door locking device also comprises slide rail (4) and slide block (6); The two ends of described slide rail (4) are connected with adapter plate (2), and slide block (6) is slidingly connected on the slide rail (4), and the junction of two lever arms of described fork (8) is hinged on the slide block (6).

3. elevator car door locking device according to claim 2 is characterized in that: be socketed with stage clip (3) on the described slide rail (4), an end of described stage clip (3) and adapter plate (2) push against, and the end face of the other end and slide block (6) pushes against.

4. elevator car door locking device according to claim 2; It is characterized in that: described fork (8) is provided with torsion spring (11) with the junction of slide block (6); An end that is provided with second roller (7) of fork (8) is provided with convexity (12); One end of described torsion spring (11) pushes against with protruding (12), and the other end and slide block (6) push against.

5. elevator car door locking device according to claim 1 is characterized in that: be connected with the caging bolt (5) of throwing off or contacting with slide block (6) on the described fork (8).