CN213569046U - Anti-falling safety lock device of side-opening double-folding door - Google Patents

Abstract

The application discloses safety lock device that prevents falling of side division double folding layer door, side division double folding layer door includes with the not fast door leaf of equidirectional motion along with slow door leaf be equipped with the layer door lock that keeps layer door in the closed condition on the shutter door leaf, layer door both sides are equipped with the door frame respectively and erect in order to form the door frame, the safety lock device that prevents falling includes: the middle part of the lock rod is hinged to the fast door leaf, the two ends of the lock rod are respectively provided with a first locking part and a second locking part, the first locking part is far away from the slow door leaf, the second locking part is close to the slow door leaf, and the door leaf is in a closed state: the first locking part is clamped with the vertical stop of the door pocket on the corresponding side, and the second locking part is clamped with the slow door leaf; and the transmission mechanism is connected between the layer door lock and the lock rod and drives each locking part to enter or release the clamping state. Two door leaves are effectively locked, the door leaves are prevented from shaking in the thickness direction, and the safety of the elevator is improved.

Description

Anti-falling safety lock device of side-opening double-folding door

Technical Field

The application relates to the field of elevator landing door devices, in particular to a falling-prevention safety lock device of a side-opening double-folding landing door.

Background

The elevator landing door is an elevator door installed at an entrance position of each floor station and mainly used for preventing people from falling off an elevator shaft. In normal use, the elevator landing doors are only opened when the elevator car is at the stopping floor. The elevator landing door device comprises an upper sill assembly, a door pocket assembly, a landing door, a pedal assembly and the like, when the elevator car leaves a landing, a door knife of the elevator door loosens a door ball of the landing door lock, so that a lock hook of the door lock is locked, and the landing door is closed; when the lift car reaches a landing, a door knife of the lift car door acts on a door ball of a landing door lock of the upper sill assembly, so that a lock hook of the door lock is unhooked, and the landing door is opened. The side-opening double-folding layer door is provided with a fast door leaf and a slow door leaf which move along the same direction at different speeds; when the door is opened, the two door leaves slide to one side of the slow door to be overlapped.

The elevator is a necessary device for the middle and high-rise building, and the safety problem of the elevator becomes a focus of attention along with the increase of the using number of the elevator. The safety of the elevator landing door is particularly important as a protection device for the elevator entrance. In recent years, the casualty accident caused by opening of the elevator landing door by external force happens occasionally, and the landing door can deform in the thickness direction of the landing door by the external force, so that the door plate sliding block slides out of the landing door sill sliding groove, or the upper sill hanging plate roller falls off from the sliding rail, and a passenger riding the elevator can open the landing door easily and fall into the hoistway.

At present, methods for preventing external force from impacting an elevator landing door are numerous, for example, a personnel induction or monitoring device is additionally arranged, an automatic blocking device is additionally arranged, and the like, although the probability that personnel or objects impact a door leaf is reduced to a certain degree, the occurrence of an event of impacting the elevator landing door cannot be avoided, because the elevator door is made of 1.2mm thin steel materials generally, when the door leaf is impacted, the deformation of the door leaf cannot be avoided, a door leaf sliding block at the lower end is separated from a sill sliding groove, or an upper sill hanging plate for hanging the door leaf is separated from a sliding rail, and a great safety risk exists.

SUMMERY OF THE UTILITY MODEL

The application aims to solve the safety problem of an elevator landing door caused by external force and provides a side-opening anti-falling safety lock device for a double-landing door.

The application provides a safety lock device that prevents falling of side division double folding layer door, side division double folding layer door includes with the not fast door leaf of equidirectional motion along with slow door leaf be equipped with the layer door lock that keeps layer door in the closed condition on the shutter door leaf, layer door both sides are equipped with the door frame respectively and erect the shelves in order to form the door frame, the safety lock device that prevents falling includes:

the middle part of the lock rod is hinged to the fast door leaf, the two ends of the lock rod are respectively provided with a first locking part and a second locking part, the first locking part is far away from the slow door leaf, the second locking part is close to the slow door leaf, and the door leaf is in a closed state: the first locking part is clamped with the vertical stop of the door pocket on the corresponding side, and the second locking part is clamped with the slow door leaf;

and the transmission mechanism is connected between the layer door lock and the lock rod and drives each locking part to enter or release the clamping state.

Optionally, a lock hook is fixed on the slow door leaf, and in a closed state of the door leaf, the lock hook is clamped with the vertical stop of the door pocket on the corresponding side.

Optionally, a first lock plate is fixedly mounted on the door pocket vertical stop far away from the slow door leaf, and a first lock groove clamped with the first locking portion is formed in the first lock plate; and a second locking plate is fixed on the slow door leaf, and a second locking groove clamped with the second locking part is formed in the second locking plate.

Optionally, in a door opening state, the fast door leaf and the slow door leaf are mutually overlapped and leaned against each other along the thickness direction, an avoidance area far away from the fast door leaf is arranged on one side of the slow door leaf facing the fast door leaf, and the second locking plate is fixed in the avoidance area to avoid a movement path of the fast door leaf.

Optionally, the second locking plate includes:

the leaning part is fixed with the slow door leaf;

the clamping part is bent from one side of the attaching part along the thickness direction of the slow door leaf, and the second locking groove is formed in the clamping part.

Optionally, one end of the lock rod, which is adjacent to the slow door leaf, is bent and extends into the avoiding area, and the part extending into the avoiding area is used as a second locking part.

Optionally, the tail end of the engaging portion extends in a direction parallel to the door leaf to form a limiting portion, and in a door closing state, the tail end of the second locking portion is tilted toward the limiting portion.

Optionally, the transmission mechanism 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 driving lever, the bottom end of the connecting rod is hinged with the lock rod, and the hinged point is positioned between the first locking part and the middle part of the lock rod.

Optionally, in the height direction, the lock rod is located in the middle of the door leaf.

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

Drawings

FIG. 1 is a schematic view of the overall structure of a fall protection safety lock device for a side-opening double-layer door;

FIG. 2 is a schematic view of the anti-fall safety lock device of FIG. 1 in a closed state;

FIG. 3 is a schematic view of the fall arrest safety lock device of FIG. 1 in a manually unlocked state;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

fig. 6 is a sectional view of the structure of fig. 1, in which the locking hook is engaged with the vertical stop of the door pocket.

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 manual lock;

4. a transmission mechanism; 41. a lock deflector rod; 42. a connecting rod;

5. a quick door leaf; 51. a first lock plate; 52. a mounting seat; 53. a door pocket vertical stop; 511. a first locking groove;

6. a slow door leaf; 61. a second lock plate; 62. a latch hook; 63. a door pocket vertical stop; 64. an avoidance zone; 611. an attachment portion; 612. a fastening part; 613. a restricting section; 6121. a second locking groove;

7. a lock lever; 71. a first locking portion; 72. a second locking portion;

8. a door leaf slider;

9. a sill.

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 an embodiment of the present application, a fall-preventing safety lock device for a side-opening double-layer door, the side-opening double-layer door including a shutter leaf 5 and a slow door leaf 6 moving in the same direction at different speeds, a layer door lock 2 provided on the shutter leaf 5 for maintaining the layer door in a closed state, the fall-preventing safety lock device comprising:

locking lever 7, the middle part is articulated in fast door leaf 5 through mount pad 52, and both ends are first locking portion 71 and second locking portion 72 respectively, and first locking portion 71 is far away from slow door leaf 6, and second locking portion 72 is close to slow door leaf 6, and the door leaf is under the closed condition: the first locking part 71 is clamped with the door pocket vertical rail 53 on the corresponding side, and the second locking part 72 is clamped with the slow door leaf 6;

and the transmission mechanism 4 is connected between the layer door lock 2 and the lock rod 7 and drives each locking part to enter or release a clamping state.

When the elevator car enters or leaves the landing, the landing door lock 2 enters an unlocking or locking state, and the landing door upper threshold 1 drives the fast door leaf 5 and the slow door leaf 6 to slide on the sill 9 at different speeds along the same direction, so that the landing door is opened or closed. In order to enhance the capability of the door leaves to bear external force, the two door leaves are locked, and the locking and the action of the layer door lock 2 are linked with each other, as shown in fig. 1, a lock rod 7 is arranged between a shutter door leaf 5 and a slow door leaf 6, in a door closing state, the layer door lock 2 is locked, and drives the lock rod 7 to swing anticlockwise through a transmission mechanism 4, so that the first locking part 71 is locked with a door pocket vertical stop 53 adjacent to the fast door leaf, and the second locking part 72 is locked with the slow door leaf 6.

In order to further enhance the capability of the door leaf to be subjected to external force, a locking hook 62 is arranged on one side of the slow door leaf 6 close to the vertical rail 63 of the door sleeve, as shown in fig. 6, when the layer door lock 2 drives the two door leaves to be closed, one side of the slow door leaf far away from the fast door leaf 5 is in sliding fit with the vertical rail 63 of the door sleeve, and meanwhile, the locking hook 62 fixed on the slow door leaf can automatically lock the vertical rail 63 of the door sleeve close to the slow door leaf, so that the slow door leaf and the door sleeve are locked into a whole. The first locking portion 71 is engaged with the door pocket vertical rail 53, and the second locking portion 72 is engaged with the slow door leaf 6, and these two engaging structures may be in the same or different manners, and as for each engaging structure, reference may be made to the prior art, but of course, preferred specific structures are also provided in some embodiments.

Further, in one embodiment, a first lock plate 51 is fixedly mounted on the door pocket vertical rail 53 adjacent to the shutter 5, and in a closed state, the first lock plate opens a first lock groove 511 engaged with the first lock portion 71, so that the shutter and the door pocket are locked integrally.

Because the two door leaves and the door pocket corresponding to the two door leaves form a stressed whole, when one of the door leaves is violently impacted by the outside, the impact force can be dispersed to the whole landing door, the phenomenon that each door leaf is stressed independently and deformed in the thickness direction of the door leaf is avoided, and the door leaf sliding block 8 can be prevented from being separated from the landing sill 9.

In order to prevent the door from shaking in the thickness direction by the external force, as shown in fig. 4, the first locking plate 51 is provided with a first locking groove 511 with an upward opening, in the closed state, the locking bar 7 swings clockwise to make the first locking portion 71 approach to the first locking groove 511, the opening structure of the first locking groove 511 can completely engage with the first locking portion 71, and a force bearing point is formed on one side of the shutter fan.

Further, in an embodiment, a second locking plate 61 is fixed on the slow door leaf 6, and the second locking plate is provided with a second locking groove 6121 engaged with the second locking portion 72. As shown in fig. 5, the second locking plate 61 is provided with a second locking slot 6121 with a downward opening, and in the door closing state, the locking rod 7 swings counterclockwise to make the second locking portion enter the second locking slot 6121, so as to form a force point on the slow door leaf. The setting of stress point prevents effectively that single door leaf from taking place to rock in self thickness direction because of the exogenic action.

In order to prevent the second locking plate 61 of the slow door leaf 6 from affecting the moving path of the fast door leaf, in one embodiment, the slow door leaf 6 is provided with an avoidance area 64 far away from the fast door leaf 5 on the side facing the fast door leaf 5, and the second locking plate 61 is fixed in the avoidance area 64 to avoid the moving path of the fast door leaf in the state that the shutter leaf 5 and the slow door leaf 6 are overlapped in the thickness direction in the door opening state.

The avoidance area 64 can be formed by slotting in the thickness direction of the door leaf, or the door leaf is formed by bending a plate, the bent part is enclosed into the avoidance area 64, and the second locking plate 61 is positioned in the avoidance area 64 to avoid interference with the movement of the quick door leaf 5.

Wherein, second jam plate 61 adopts an organic whole structure, includes:

a contact portion 611 fixed to the slow door 6;

an engaging portion 612 bent from one side of the contact portion 611 in the thickness direction of the slow door 6, and a second locking groove 6121 provided in the engaging portion;

the restricting portion 613 is formed by extending the end of the engaging portion 612 in the direction parallel to the door.

The second locking plate 61 is of an integral structure, is fixed with the slow door leaf in a welding or riveting mode, and is convenient to process and capable of guaranteeing strength.

Since the second lock plate 61 is located in the escape area 64, the second locking portion of the lock lever 7 is bent in the door leaf thickness direction and protrudes into the escape area in order to be engaged therewith. In the door-closed state, the end of the second locking portion 72 tilts toward the limiting portion 613 of the second locking plate 61, so as to limit the second locking portion from shaking in the second locking groove 6121, thereby improving the capability of the door leaf impacted by external force.

In order to enable the locking and unlocking of the locking rod 7 to be timely and quick, in one embodiment, a transmission mechanism 4 is arranged between the locking rod 7 and the landing door lock 2, and the transmission mechanism 4 comprises:

a lock deflector rod 41 fixedly connected with a lock hook of the layer door lock;

the top end of the connecting rod 42 is hinged to the lock lever, the bottom end is hinged to the lock lever 7, and the hinge point is located between the first locking portion 71 and the mounting seat 52.

As shown in fig. 2, in the door closing state, the door operator device of the car door releases the layer door lock 2, the layer door lock 2 is locked by the reset member, and at the same time, drives the lock lever 41 to swing counterclockwise, pulls the connecting rod 42 to move downward in the rotation plane, drives the lock lever 7 to rotate counterclockwise with the hinge point of the mount 52 as the pivot point, so that the first locking portion 71 enters the first locking groove 511, and the second locking portion 72 enters the second locking groove 6121, thereby locking the two door leaves.

As shown in fig. 3, in the door opening state, the door operator device of the car door drives the landing door lock 2 to unlock through the door ball, and then drives the lock lever 41 to swing clockwise, pushing the connecting rod 42 to move upward in the rotating plane, and driving the lock lever 7 to rotate clockwise with the hinge point of the mounting seat 52 as the pivot point, so that the first locking portion 71 is disengaged from the first locking groove 511, the second locking portion 72 is disengaged from the second locking groove 6121, and the locking of the two door leaves is released.

In the height direction, the lock bar 7 and the lock groove (the first lock groove 511 and the second lock groove 6121) are located in the middle of the door leaf. When the two door leaves shake relatively, the relative displacement can be reasonably distributed.

In addition, a manual lock 3 is further provided on the shutter fan 5, and a key cylinder of the manual lock 3 is linked with the transmission mechanism 4 for manual unlocking.

In the case of maintenance or emergency, the landing door can be opened manually. As shown in fig. 3, the maintenance worker rotates the lock cylinder of the manual lock 3 by using the triangle key to push the lock shift lever 41 to swing clockwise, so as to drive the layer door lock 2 to open; meanwhile, the lock shift lever 41 rotates clockwise to drive the connecting rod 42 to move upwards, the connecting rod 42 pulls the lock lever 7 to rotate clockwise with the hinge point of the mounting seat 52 as a pivot point, so that the first locking portion 71 is separated from the first locking groove 511, the second locking portion 72 is separated from the second locking groove 6121, the locking of the door leaves is released, and a maintenance worker can manually push the two door leaves to slide towards one side far away from the shutter leaf to open the landing door.

The application provides a safety lock device that prevents falling of side division double folding layer door can become an organic whole with the door leaf closure effectively, promotes the anti external force striking ability of layer door system, ensures the safety of elevator.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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-mentioned embodiments 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. The anti-falling safety lock device of the side-opening double-layer door comprises a fast door leaf and a slow door leaf which move along the same direction at different speeds, a layer door lock which keeps the layer door in a closed state is arranged on the shutter door leaf, and door frames are arranged on two sides of the layer door respectively and vertically shift to form the door frames, and the anti-falling safety lock device is characterized by comprising:

the middle part of the lock rod is hinged to the fast door leaf, the two ends of the lock rod are respectively provided with a first locking part and a second locking part, the first locking part is far away from the slow door leaf, the second locking part is close to the slow door leaf, and the door leaf is in a closed state: the first locking part is clamped with the vertical stop of the door pocket on the corresponding side, and the second locking part is clamped with the slow door leaf;

and the transmission mechanism is connected between the layer door lock and the lock rod and drives each locking part to enter or release the clamping state.

2. The device of claim 1, wherein the slow door leaf is fixed with a locking hook, and the locking hook is engaged with the vertical rail of the door pocket on the corresponding side in the closed state of the door leaf.

3. The anti-falling safety lock device for the side-opening double-layer door as claimed in claim 1, wherein a first lock plate is fixedly mounted on a vertical bar of a door pocket far away from the slow door leaf, and the first lock plate is provided with a first lock groove engaged with the first locking part; and a second locking plate is fixed on the slow door leaf, and a second locking groove clamped with the second locking part is formed in the second locking plate.

4. The device of claim 3, wherein in the opened state, the fast door leaf and the slow door leaf are overlapped with each other in the thickness direction, the slow door leaf has an escape area far away from the fast door leaf on the side facing the fast door leaf, and the second locking plate is fixed in the escape area to escape the moving path of the fast door leaf.

5. The apparatus of claim 4, wherein the second locking plate comprises:

the leaning part is fixed with the slow door leaf;

the clamping part is bent from one side of the attaching part along the thickness direction of the slow door leaf, and the second locking groove is formed in the clamping part.

6. The device of claim 5, wherein the locking rod is bent near one end of the slow door leaf and extends into the avoiding area, and the part extending into the avoiding area is used as the second locking part.

7. The device of claim 5, wherein the end of the engaging portion extends in a direction parallel to the door leaf to form a limiting portion, and the end of the second locking portion is tilted toward the limiting portion when the door is closed.

8. The device of claim 1, wherein the actuator 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 driving lever, the bottom end of the connecting rod is hinged with the lock rod, and the hinged point is positioned between the first locking part and the middle part of the lock rod.

9. The device of claim 1, wherein the locking bar is located at the middle of the door leaf in the height direction.

10. The device as claimed in claim 1, wherein a manual lock is further provided on the quick-acting door leaf, and the lock core of the manual lock is linked with the transmission mechanism for manual unlocking.

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