CN213569047U - Anti-falling safety lock device for split elevator landing door - Google Patents

Abstract

The application discloses a safety lock device that prevents falling for well-split elevator layer door, well-split elevator layer door includes two door leafs of relative motion and is used for keeping two door leafs at the layer door lock of closed condition, its characterized in that, the safety lock device that prevents falling includes: the guide piece is fixedly arranged on one door leaf and provides a guide channel; a locking element in sliding engagement with the guide channel; the lock hole is formed in the other door leaf and used for receiving the locking piece, and the locking piece and the lock hole limit relative movement of the two door leaves in the thickness direction of the two door leaves in a locking state; and the transmission mechanism is connected between the layer door lock and the locking piece and drives the locking piece to enter or separate from the lock hole. The utility model provides a safety lock device that prevents falling for well minute formula elevator layer door can disperse the external impact, prevents that the door leaf from rocking, improves the security of elevator.

Description

Anti-falling safety lock device for split elevator landing door

Technical Field

The application relates to the field of elevator landing door devices, in particular to a falling-preventing safety lock device for a split elevator landing door.

Background

The elevator landing door is an elevator door installed at the entrance position of each floor station, and the elevator landing door mainly has the function of preventing personnel from falling off an elevator shaft, and only when the elevator car is positioned at a stopping floor in normal use can the landing door of the stopping floor be opened. The elevator landing door device comprises an upper sill component, a door pocket component, a landing door, a pedal component and the like. The upper sill component drives the device for automatically opening and closing the landing door, and when the landing door is closed, the landing door lock on the upper sill component locks the landing door hanging plate together in a hooking manner, so that the landing door is prevented from being opened or pulled open under abnormal conditions. Every layer door plant hangs on the link plate of last bank subassembly, and the bottom is passed through the slider and is followed the spout rectilinear movement of footboard, does not have any restriction in layer door middle part.

In recent years, with the increase of the number of elevators, casualty accidents of personnel falling into elevator shafts occur occasionally, most of the accidents are caused by landing door problems, and the following situations mainly exist: firstly, passengers forcibly impact the landing door to deform or damage the landing door, so that the door sliding block is separated from the sill sliding groove, or the roller of the hanging plate of the upper sill is separated from the sliding rail, and the like; secondly, because product quality problem for the door slider below the layer door drops, leads to someone to rely on the layer door when, and the layer door lifts etc. to well.

Prevent at present that the elevator from falling the aspect of technical scheme have a lot, for example install additional personnel response or make a video recording the facility and carry out reputation and remind, or add automatic facility etc. that stops, or carry out door plant and slider structure anticreep and consolidate, or go up bank anticollision improvement etc. above various improvements door plant drop when reducible striking risk of falling and dying. However, the main reason for the falling-off accident of the landing door is that the door plate body is made of 1.2mm thin steel, when the landing door is impacted, the door plate is bent and deformed to cause the lower door sliding block to be separated from the pedal sliding groove, or the upper sill hanging plate for hanging the door plate is separated from the sliding rail, so that the landing door has great safety risk.

SUMMERY OF THE UTILITY MODEL

The application provides a high safety lock device that falls that is used for well minute formula elevator layer door of security prevents that elevator layer door from receiving external impact, and the door leaf takes place to warp and leads to the roll-off sill or drop, causes personnel to fall the well.

The application provides a prevent safety lock device that falls for well-split elevator layer door, well-split elevator layer door includes two door leafs of relative motion and is used for keeping two door leafs at the layer door lock of closed condition, prevent falling the safety lock device and include:

the guide piece is fixedly arranged on one door leaf and provides a guide channel;

a locking element in sliding engagement with the guide channel;

the lock hole is formed in the other door leaf and used for receiving the locking piece, and the locking piece and the lock hole limit relative movement of the two door leaves in the thickness direction of the two door leaves in a locking state;

and the transmission mechanism is connected between the layer door lock and the locking piece and drives the locking piece to enter or separate from the lock hole.

Optionally, the two door leaves are fixed with lock hooks, and the lock hooks are clamped with the vertical door pocket stops of the split elevator landing door when the door leaves are closed.

Optionally, the guide member is a fixed plate disposed on the door leaf, and a through hole for providing the guide channel is formed in the fixed plate;

the locking piece is a pin sliding along the through hole, and a stroke limiting piece blocked at the edge of the through hole is convexly arranged on the periphery of the pin.

Optionally, the stroke limiting piece and the pin are of an integral or split structure, and the stroke limiting piece is annular distributed along the circumferential direction of the pin or rod-shaped extending along the radial direction of the pin.

Optionally, the transmission mechanism includes:

the deformable four-bar linkage structure comprises two hinge parts which are opposite in position in the four-bar linkage structure, one hinge part is connected with the door leaf, and the other hinge part is connected with the locking piece;

and the linkage part is respectively connected with the layer door lock and the four-bar structure, and the four-bar structure is deformed under the driving of the layer door lock.

Optionally, the four rods of the four-bar linkage structure have equal lengths.

Optionally, the four-bar linkage structure includes four hinge portions arranged in sequence, wherein a first hinge portion and a third hinge portion opposite to each other are respectively connected to the door leaf and the locking member, and the linkage member is hinged to the second hinge portion or the fourth hinge portion.

Optionally, the linkage includes:

the lock deflector rod is fixedly connected with a lock hook of the layer door lock;

and the top end of the connecting rod is hinged with the lock deflector rod, and the bottom end of the connecting rod is hinged with the four-connecting-rod structure.

Optionally, in the height direction, the locking piece and the lock hole are located in the middle of the door leaf.

Optionally, a manual lock is further arranged on the door leaf provided with the locking piece, and a lock cylinder of the manual lock is linked with the transmission mechanism for manual unlocking.

Drawings

Fig. 1 is a schematic structural view of an overall anti-falling safety lock device for a split elevator landing door according to an embodiment of the present application;

FIG. 2 is a schematic view of the fall arrest safety lock device of FIG. 1 in an open condition;

fig. 3 is a schematic view of the anti-fall safety lock device of fig. 1 in a closed state.

FIG. 4 is a sectional view of the latch hook of FIG. 1 engaged with the vertical stop of the door jamb;

the reference numerals in the figures are illustrated as follows:

1. a landing door is arranged above the sill;

2. a layer door lock;

3. a transmission mechanism; 31. a linkage member; 32. a four-bar linkage structure; 311. a lock deflector rod; 312. a connecting rod; 321. A first hinge region; 322. a second hinge region; 323. a third hinge portion; 324. a fourth hinge region;

4. a manual lock;

51. a door leaf; 52. a door leaf; 53. a latch hook; 54. a latch hook; 55. a lock hole; 56. a door leaf side; 57. A door pocket vertical stop; 58. a door pocket vertical stop;

6. a guide member; 61. a fixing plate; 62. a through hole;

7. a locking member; 71. a pin; 72. a stroke limiting member;

8. landing sill;

9. door plant slider.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, in one embodiment of the present application, a fall-preventing safety lock device for a split elevator landing door, which includes two door leaves (door leaf 51, door leaf 52) moving relatively and a landing door lock 2 for keeping the two door leaves in a closed state, comprises:

the guide piece 6 is fixedly arranged on one door leaf and provides a guide channel;

a locking element 7 in sliding engagement with the guide channel;

a lock hole 55 which is opened on the other door leaf and is used for receiving the locking piece 7, and the locking piece and the lock hole limit the relative movement of the two door leaves in the thickness direction of the locking piece and the lock hole in a locking state;

the transmission mechanism 3 is connected between the layer door lock 2 and the locking piece 7 and drives the locking piece 7 to enter or separate from the lock hole 55.

In order to lock the two door leaves and improve the external force resistance of the door leaves, a locking piece 7 is arranged on one side of the two door leaves which are closed, and the locking direction is vertical to the thickness direction of the door leaves; when the elevator car leaves a landing, the landing door lock 2 is locked, and the landing door upper sill 1 drives the two door leaves to close towards the middle; the locking piece and the layer door lock 2 are linked through the transmission mechanism 3, so that the locking piece 7 slides along the guide channel under the action of the guide piece 6 and enters the lock hole 55 at the side edge 56 of the door leaf, at least one part of the locking piece 7 enters the lock hole 55, the other part of the locking piece is remained in the guide channel, or at least one part of the transmission mechanism 3 is positioned in the guide channel, so that the two door leaves are mutually locked.

In order to further improve the external force resistance of the door leaf, in an embodiment, as shown in fig. 4, two door leaves are fixed with lock hooks (lock hook 53, lock hook 54), and the door leaf is in a closed state, and the lock hooks (lock hook 53, lock hook 54) are engaged with vertical bars (vertical bars 57 of the door pocket, vertical bars 58 of the door pocket) of the split elevator landing door, so that the door leaf and the door pocket are integrated, and the external force applied to a single door leaf can be dispersed to the whole landing door, thereby preventing the door leaf from shaking or deforming, and causing the door leaf slider 9 to slide out from the sliding groove of the landing door sill 8.

In order to accurately slide the locking element 7 into the locking hole 55, as shown in fig. 2, the door 51 is provided with a guide 6, a fixing plate 61 of the guide 6 is provided with a through hole 62 providing a guide passage, and the through hole 62 and the locking hole 55 are on the same horizontal line, so that the locking element 7 can slide into the locking hole 55 from the through hole 62.

The guide channel is constructed in the form of the through hole 62, so that the machining is facilitated, and in addition, the length of the guide channel can be adjusted as required by matching with a pipe fitting, so that the stability and smoothness of the moving path of the locking part 7 are improved.

The locking element 7 has a pin 71 sliding along the through hole 62, and a stroke limiter 72 blocked by the edge of the through hole is protruded on the outer periphery of the pin 71.

The pin 71 can be blocked by the stroke limiter 72 when the pin 71 extends into the lock hole 55 and advances to the limit position, and the pin 71 is prevented from completely falling out of the guide passage, so that the pin cannot be reset.

The stroke limiting piece 72 and the pin 71 are of an integral or separate structure, and the stroke limiting piece 72 is of a ring shape distributed along the circumferential direction of the pin or a rod shape extending along the radial direction of the pin.

The stroke distance of the pin influences the locking degree of the two door leaves, the stroke distance is too short, the locking effect of the two door leaves is poor, and the capacity of bearing external force impact is not strong. In order to obtain a suitable travel and to ensure a flexible and simple transmission, the transmission mechanism 3 comprises, in an embodiment:

a deformable four-bar linkage 32, in which one of two opposite hinged parts is connected to the door leaf and the other is connected to the locking part 7;

and the linkage piece 31 is respectively connected with the layer door lock 2 and the four-bar structure 32, and the four-bar structure 32 is deformed under the driving of the layer door lock 2.

In one embodiment, the four-bar linkage 32 comprises four bars of equal length and four hinge portions arranged in sequence, wherein the first hinge portion 321 and the third hinge portion 323 which are opposite to each other are respectively connected to the door leaf 52 and the locking element 7, and the linking member 31 is hinged to the second hinge portion 322 or the fourth hinge portion 324. Since the first hinge portion 321 and the third hinge portion 323 are respectively connected to the door leaf 52 and the locking member 7, the sliding movement of the locking member 7 can be driven by changing the deformation distance of the hinge portions, thereby realizing the locking and unlocking of the two door leaves.

In one embodiment, the linkage 31 includes:

a lock deflector rod 311 fixedly connected to a latch hook of the layer door lock 2;

the top end of the connecting rod 312 is hinged with the lock shift lever 311, and the bottom end is hinged with the four-bar linkage structure 32.

As shown in fig. 2, in the closed state, the car door operator device releases the landing door lock 2, the landing door lock 2 is locked under the action of the elastic force, the lock shift lever 311 is driven to swing counterclockwise, the connecting rod 312 is pulled to move downward along the rotation plane, the second hinge portion 322 of the four-bar linkage structure 32 is made to move downward, the distance between the second hinge portion 322 and the fourth hinge portion 324 is reduced, the distance between the first hinge portion 321 and the third hinge portion 323 is increased, the locking member 7 is pushed to slide along the through hole 62 of the guide channel and slide into the lock hole 55 on the side of the door leaf 51, so that the two door leaves are locked together at the middle position. Meanwhile, the lock hook 53 and the lock hook 54 fixed on the door leaf can respectively and automatically lock the door pocket vertical stop 57 and the right door pocket vertical stop 58, so that the external force impact resistance of the landing door system is improved, and the safety of the elevator is guaranteed.

As shown in fig. 3, in the door opening state, the car door actuator device clamps the landing door lock 2, the landing door lock 2 is opened, the lock shift lever 311 is driven to swing clockwise, the connecting rod 312 is pushed to move up along the rotation plane, the second hinge portion 322 of the four-bar linkage structure 32 moves up along the rotation plane, the distance between the second hinge portion 322 and the fourth hinge portion 324 is increased, the distance between the first hinge portion 321 and the third hinge portion 323 is decreased, the locking member 7 is pulled to slide out from the through hole 62 of the guide passage and slide out of the lock hole 55 at the side of the door leaf 51, so that the lock catches of the two door leaves are disengaged. At the same time, the locking hook 53 fixed on the door leaf and the locking hook 54 automatically disengage from the door pocket vertical rail 57 and the right door pocket vertical rail 58.

In the height direction, the locking element 7 and the locking hole 55 are located in the middle of the door leaf. When the two door leaves are impacted by external force and relatively shake, the relative displacement can be reasonably distributed.

In one embodiment, a manual lock 4 is further arranged on the door leaf provided with the locking piece 7, and a lock cylinder of the manual lock is linked with the transmission mechanism 3 for manual unlocking.

In maintenance or emergency, a maintenance worker rotates the lock cylinder of the manual lock 4 by using a triangular key, pushes the lock shift lever 311 to swing clockwise, drives the layer door lock 2 to open, simultaneously pushes the second hinge part 322 of the four-bar linkage structure 32 to move upwards along the linkage member rotating plane, increases the distance between the second hinge part 322 and the fourth hinge part 324 of the four-bar linkage structure, decreases the distance between the first hinge part 321 and the third hinge part 323, pulls the locking member 7 to slide outwards, enables the pin to slide away from the lock hole 55 at the side edge of the door leaf 51, disengages the two door leaves from the middle lock catch, and can push the two door leaves open by hands of the maintenance worker, thereby realizing the door opening process.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. A prevent safety lock device that falls for well-parted elevator layer door, well-parted elevator layer door includes two door leafs of relative motion and is used for keeping two door leafs at the layer door lock of closed condition, its characterized in that, prevent falling safety lock device includes:

the guide piece is fixedly arranged on one door leaf and provides a guide channel;

a locking element in sliding engagement with the guide channel;

the lock hole is formed in the other door leaf and used for receiving the locking piece, and the locking piece and the lock hole limit relative movement of the two door leaves in the thickness direction of the two door leaves in a locking state;

and the transmission mechanism is connected between the layer door lock and the locking piece and drives the locking piece to enter or separate from the lock hole.

2. The device of claim 1, wherein the two door leaves are fixed with locking hooks, and the locking hooks are engaged with the vertical bars of the door pocket of the split elevator landing door when the door leaves are closed.

3. The device of claim 2, wherein the guiding element is a fixing plate disposed on the door leaf, and the fixing plate is provided with a through hole for providing the guiding passage;

the locking piece is a pin sliding along the through hole, and a stroke limiting piece blocked at the edge of the through hole is convexly arranged on the periphery of the pin.

4. The device of claim 3, wherein the stroke limiter is integrally or separately formed with the pin, and the stroke limiter is in the form of a ring circumferentially disposed around the pin or a rod radially extending from the pin.

5. The device of claim 1, wherein the drive mechanism comprises:

the deformable four-bar linkage structure comprises two hinge parts which are opposite in position in the four-bar linkage structure, one hinge part is connected with the door leaf, and the other hinge part is connected with the locking piece;

and the linkage part is respectively connected with the layer door lock and the four-bar structure, and the four-bar structure is deformed under the driving of the layer door lock.

6. The device of claim 5 wherein the four bars of the four bar linkage are equal in length.

7. The device of claim 5, wherein the four bar linkage comprises four hinge portions arranged in sequence, wherein the first hinge portion and the third hinge portion are connected to the door leaf and the locking member, respectively, and the linkage member is hinged to the second or fourth hinge portion.

8. The device of claim 5, wherein the linkage comprises:

the lock deflector rod is fixedly connected with a lock hook of the layer door lock;

and the top end of the connecting rod is hinged with the lock deflector rod, and the bottom end of the connecting rod is hinged with the four-connecting-rod structure.

9. The device of claim 1, wherein the locking element and the locking hole are located in the middle of the door leaf in the height direction.

10. The device of claim 1, wherein a manual lock is further provided on the door leaf on which the locking element is mounted, and a lock cylinder of the manual lock is linked with the transmission mechanism for manual unlocking.

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