CN113682928A

CN113682928A - Elevator layer door lock structure

Info

Publication number: CN113682928A
Application number: CN202110979787.0A
Authority: CN
Inventors: 谭晓亨; 黄敏冬; 王辉
Original assignee: Hitachi Elevator China Co Ltd
Current assignee: Hitachi Elevator China Co Ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-23
Anticipated expiration: 2041-08-25
Also published as: CN113682928B

Abstract

A door lock structure of an elevator landing door relates to the technical field of elevators, a first locking member is arranged at a position, corresponding to a first hanging plate, of a cross beam, a second locking member is arranged on a second hanging plate, the first locking member and the second locking member are movably locked, the door lock structure further comprises a landing door lock device for driving the second locking member to be separated from the first locking member, and a secondary protection device for preventing an operator from falling into a well, the secondary protection device drives the first landing door and the second landing door to be opened for the first time to form an observation port which can not be passed by a human body, after safety is confirmed, the operator needs to operate the landing door lock device again, the first landing door and the second landing door can be opened completely after being opened for the second time, secondary protection is realized by arranging the secondary protection device to be matched with the landing door lock device, the operator is protected, and the danger caused by misoperation of stepping into the well by the operator, and accidents are prevented.

Description

Elevator layer door lock structure

Technical Field

The invention relates to the technical field of elevators, in particular to an elevator landing door lock structure.

Background

The elevator is used as the most important transportation means for vertical transportation in the building, and along with the development and construction of cities, higher and higher requirements are put forward on the safety and the attractiveness of the elevator.

At present, when the landing door is opened to get into the car or the car top, the risk of falling into the well exists, mainly show on the artificial factors such as the operating personnel safety consciousness is not enough, non-professional operation, car position confirmation mistake or not confirming, in addition, the power of landing door design is kept also to be an influencing factor, when opening the landing door hard, because of overcoming the power when opening and keeping to use the power requirement big, open the back hard little, thereby easily because of beginning to use hard too big lead to the landing door to open too fast unbalance and fall into the well.

The existing landing door is unlocked mostly by unlocking holes on the landing door, the attractiveness of the landing door is influenced, the landing door is also installed on a door pocket, the locking hook is controlled to be unlocked through the pull rope, the secondary protection effect of the landing door cannot be basically realized, and the pull rope is easy to fail to unlock.

Disclosure of Invention

Based on this, it is necessary to provide an elevator landing door lock structure, under the condition that the elevator car does not stay in the corresponding layer area, and operating personnel can not step into the well after opening the landing door lock, cause the emergence of the accident of falling, and keep pleasing to the eye moreover.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

an elevator landing door lock structure comprises a cross beam, a first landing door and a second landing door, wherein the tops of the first landing door and the second landing door are correspondingly connected with a first hanging plate and a second hanging plate, the first landing door and the second landing door are movably opened and closed through the first hanging plate and the second hanging plate, the cross beam is provided with a first locking part (8) in a position corresponding to the first hanging plate, the second hanging plate is provided with a second locking part, the first locking part and the second locking part are movably locked, the elevator landing door lock structure further comprises a landing door lock device for driving the second locking part to be separated from the first locking part and a secondary protection device for preventing an operator from falling into a well, the secondary protection device drives the first landing door and the second landing door to be opened for the first time to form an observation port through which the human body can not pass, and after safety is confirmed, the operator needs to operate the landing door lock device again, the first floor door and the second floor door can be fully opened after being opened for the second time.

Further, layer door lock device includes layer lock and rather than complex link mechanism, layer lock includes the lock core, sets up reset spring in the lock core and sets up the spring bolt in the lock core lower part, through the key drive the lock core pushes down, drives the spring bolt pushes down, rotates the key, the drive the spring bolt is rotatory, thereby the drive link mechanism drives the second retaining member breaks away from first retaining member, first layer door, second floor door can carry out the operation of opening the door for the first time.

Further, link mechanism includes pendulum rod, connecting piece, the pendulum rod passes through the axis of rotation and rotates to be connected second floor door rear side, the extension of pendulum rod one end is stretched out second floor door lateral part, the pendulum rod other end with connecting piece one end is rotated and is connected, the connecting piece other end with second retaining member tip rotates to be connected, when the spring bolt rotates, can touch and promote the pendulum rod rotates, thereby utilizes the connecting piece drive the second retaining member rotates, makes the second retaining member break away from first retaining member.

Furthermore, the secondary protection device comprises a lock tongue clamping plate for the lock tongue to rotate and pass through, and the lock tongue clamping plate is arranged between the end, extending out of the swing rod, of the swing rod and the landing door lock.

Furthermore, a lock tongue unlocking groove which penetrates through the lock tongue clamping plate is formed in the lock tongue clamping plate, the lock tongue unlocking groove is arranged in the vertical direction, a lock tongue clamping groove is formed in the upper portion of the lock tongue unlocking groove, and a lock tongue flange which is opposite to the lock tongue clamping groove is oppositely arranged.

Further, through pressing the key, drive the spring bolt removes to and unlocks the groove relative position with the spring bolt, rotates the key and drives the spring bolt rotates, the spring bolt distal end passes through the spring bolt unlocks the groove, the spring bolt rotates to the spring bolt unlocks the groove, and the release is to the key effort, reset spring resumes deformation, drives the spring bolt gets into in the spring bolt draw-in groove, the spring bolt under-tongue terminal surface with spring bolt draw-in groove bottom surface butt, the second retaining member breaks away from first retaining member, first floor door, second floor door can carry out the operation of opening the door for the first time, can make second floor door stop opening after the spring bolt is touch to second floor door side, confirm safe back, operating personnel resets the spring bolt position can carry out the operation of opening the door for the second time.

Furthermore, the connecting piece is a pull rod or a pull rope.

Further, the rotating shaft is installed on a bracket, and the bracket is installed at the rear side of the second layer door.

Furthermore, the crossbeam is provided with the guided way horizontally, first link plate, second link plate pass through gyro wheel and guided way sliding connection.

Further, the layer door lock is arranged on the side of the door pocket.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides an elevator landing door lock structure, which is provided with a cross beam, a first landing door, a second landing door, a first hanging plate, a second hanging plate, a first locking piece, a second locking piece, a landing door lock device and a secondary protection device, wherein the landing door lock device and the secondary protection device are arranged, the landing door lock device drives the first landing door and the second landing door to open, the secondary protection device is arranged, the first landing door and the second landing door can only form an observation opening which can not be passed by a human body for the first time, an operator can observe whether a car is in place or not through observing the observation opening, after the safety is confirmed, the landing door lock device is operated again to reset, the first landing door and the second landing door can be completely opened for the second time, the secondary protection is realized by arranging the secondary protection device and matching with the landing door lock device, the operator is protected, and the danger caused by the misoperation of stepping into a well by the operator, and accidents are prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention in a normal state;

FIG. 2 is a front view of the present invention in a normal state;

FIG. 3 is a schematic view of the first retaining member shown disengaged from the second retaining member in accordance with the present invention;

FIG. 4 is a schematic view of a first opening structure of the first and second doors according to the present invention;

FIG. 5 is a schematic view of a second opening structure of the first and second landing doors according to the present invention;

FIG. 6 is a schematic view of the lock structure of the present invention;

FIG. 7 is a sectional view of the landing door lock of the present invention in its normal state;

FIG. 8 is a schematic sectional view of a lock for a landing door according to the present invention;

FIG. 9 is a schematic view of a locking bolt clamping plate of the present invention;

fig. 10 is a schematic view of the locking bolt clamping plate and the landing door lock matching structure of the invention.

In the figure: 1. the door comprises a cross beam, 2, a first layer door, 3, a second layer door, 4, a first hanging plate, 5, a second hanging plate, 6, a roller, 7, a guide rail, 8, a first locking piece, 9, a second locking piece, 10, a connecting piece, 11, a bracket, 12, a swing rod, 13, a rotating shaft, 14, a bolt clamping plate, 141, a bolt unlocking groove, 142, a bolt clamping groove, 143, a bolt flange, 15, a layer door lock, 151, a bolt, 152, a lock cylinder and 153, and a reset spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.

As shown in fig. 1-10, an elevator landing door lock structure comprises a beam 1, a first landing door 2 and a second landing door 3, wherein the tops of the first landing door 2 and the second landing door 3 are correspondingly connected with a first hanging plate 4 and a second hanging plate 5, the first landing door 2 and the second landing door 3 are movably opened and closed by the beam 1 through the first hanging plate 4 and the second hanging plate 5, the beam 1 is provided with a first locking member 8 at a position corresponding to the first hanging plate 4, the second hanging plate 5 is provided with a second locking member 9, the first locking member 8 and the second locking member 9 are movably locked, the elevator landing door lock structure further comprises a landing door lock device for driving the second locking member 9 to be separated from the first locking member 8 and a secondary protection device for preventing operators from falling into a well, the secondary protection device drives the first landing door 2 and the second landing door 3 to be opened for the first time to form an observation opening through which a human body can not pass, after the safety is confirmed, the operator needs to operate the landing door lock device again, and the first landing door 2 and the second landing door 3 can be opened completely after being opened for the second time.

The invention provides an elevator landing door lock structure, which is provided with a cross beam 1, a first landing door 2, a second landing door 3, a first hanging plate 4, a second hanging plate 5, a first locking piece 8, a second locking piece 9, a landing door lock device and a secondary protection device, wherein the landing door lock device and the secondary protection device are arranged, the landing door lock device drives the first landing door 2 and the second landing door 3 to be opened, the secondary protection device is arranged, the first landing door 2 and the second landing door 3 are opened for the first time to form an observation port through which a human body can not pass, an operator can observe whether a car is in place through observing the observation port, after the safety is confirmed, the landing door lock device is reset through operating the landing door lock device again, the first landing door 2 and the second landing door 3 can be opened completely through opening for the second time, the secondary protection is realized through the arrangement of the secondary protection device and the landing door lock device, the protection operating personnel, avoid operating personnel maloperation to step on the well and take place danger, prevent the occurence of failure.

Specifically, as shown in the figure, layer lock device includes layer lock 15 and rather than complex link mechanism, layer lock 15 includes lock core 152, sets up reset spring 153 in lock core 152 and sets up the spring bolt 151 in the lock core 152 lower part, through the key drive lock core 152 pushes down, drives spring bolt 151 pushes down, rotates the key, the drive spring bolt 151 is rotatory, thereby the drive link mechanism drives second retaining member 9 breaks away from first retaining member 8, first layer door 2, second layer door 3 can carry out the operation of opening the door for the first time.

Specifically, as shown in the figure, link mechanism includes pendulum rod 12, connecting piece 10, pendulum rod 12 rotates through axis of rotation 13 to be connected the second floor door 3 rear side, the extension of 12 one end of pendulum rod is stretched out the second floor door 3 lateral part, the pendulum rod 12 other end with connecting piece 10 one end is rotated and is connected, the connecting piece 10 other end with second retaining member 9 tip rotates and is connected, when spring bolt 151 rotated, can touch and promote pendulum rod 12 rotates, thereby utilizes connecting piece 10 drive second retaining member 9 rotates, makes second retaining member 9 break away from first retaining member 8.

Specifically, as shown in the figure, the secondary protection device includes a lock tongue catch plate 14 through which the lock tongue 151 rotates, and the lock tongue catch plate 14 is disposed between the extended end of the swing rod 12 and the landing door lock 15. The lock tongue clamping plate 14 is provided with a lock tongue unlocking groove 141 which penetrates through the lock tongue clamping plate, the lock tongue unlocking groove 141 is arranged in the vertical direction, and a lock tongue clamping groove 142 and a lock tongue flange 143 which is oppositely arranged on the opposite side of the lock tongue clamping groove 142 are formed at the upper part of the lock tongue unlocking groove 141.

Specifically, as shown in the figure, through pressing the key, drive spring bolt 151 moves to and unlocks groove 141 relative position with the spring bolt, rotates the key and drives spring bolt 151 rotates, spring bolt 151 distal end passes through spring bolt unlocks groove 141, spring bolt 151 rotates to spring bolt unlocks groove 141, and the release is to the key effort, reset spring 153 resumes deformation, drives spring bolt 151 gets into in spring bolt draw-in groove 142, terminal surface under the spring bolt 151 with spring bolt draw-in groove 142 bottom surface butt, second retaining member 9 breaks away from first retaining member 8, first layer door 2, second floor door can carry out the first operation of opening the door, can make second floor door 9 stop opening after spring bolt 151 is touch to second floor door 9 side, confirm safe back, operating personnel reset spring bolt 151 position can carry out the second operation of opening the door.

Specifically, as shown in the figure, the connecting member 10 is a pull rod or a pull rope.

Specifically, as shown in the figure, the rotating shaft 13 is installed on a bracket 11, and the bracket 11 is installed at the rear side of the second layer door 3.

Specifically, as shown in the figure, a guide rail 7 is horizontally arranged on the cross beam 1, and the first hanging plate 4 and the second hanging plate 5 are in guide sliding connection with the guide rail 7 through rollers 6.

Specifically, the specific principle of the invention is as follows: referring to fig. 7, it can be seen that the landing door lock is provided with an elastic device, and under normal conditions, the spring is in an extended state, so that the landing door bolt has two different states, which is convenient for unlocking control of the landing door; referring to fig. 8, as the elastic device is arranged in the layer door lock, when the spring is stressed by a triangular key or a lock tongue in the unlocking process or after the door is opened, the spring is compressed and shortened, so that the distance from the lock tongue to the lock end face is increased, referring to fig. 1 and 10, in a normal state, the lock tongue cannot reach the range of the lock groove of the lock tongue, the lock tongue can collide with the lock tongue clamping plate in the rotating process, and the lock tongue cannot be clamped out in a misoperation to influence the normal door opening and closing of the layer door.

Referring to fig. 3 and 10, in the unlocking process, a key presses the layer door lock, the lock tongue is in the range of the lock tongue unlocking groove, the rotating lock tongue can penetrate through the lock tongue unlocking groove to touch the swing rod, the swing rod is pushed to swing upwards until the end face of the lower end face of the lock tongue is larger than or equal to the height of the lock tongue clamping groove, the force of the key pressing the layer door lock is cancelled, so that the lock tongue is acted by the restoring force of the elastic device in the layer door lock, the lower end of the lock tongue can move downwards under the restoring force of the swing rod until the lower end of the lock tongue contacts with the lock tongue clamping groove to stop, the lock hook state of the layer door at the moment is opened, and the layer door can be normally opened.

Referring to fig. 4 and 10, in the process of opening the layer door after unlocking, the side edge of the layer door is just contacted with the bolt, the layer door can continue to push and press the bolt to open, when the bolt moves, the elastic device in the layer door lock is compressed to the limit, namely the maximum width for opening the door for the first time, as shown in fig. 9, the bolt clamping plate is provided with a bolt retaining edge, and when the bolt is deformed by the door opening force of the layer door, the bolt retaining edge can provide a reinforcing effect to prevent further deformation. At the moment, although the lock tongue extends out of the blocking range of the lock tongue clamping groove, the lock tongue cannot fall off immediately due to the action of friction force, so that the second layer door cannot be opened continuously due to the blocking of the lock tongue, and the time for secondary confirmation and adjustment of the standing posture is given to an operator. The operator can see the relevant conditions in the well through the opened observation port, and the width of the observation port can not lead the operator to fall into the well, so the safety and the reliability are realized, and the protection is provided for the possible misoperation or accidental weightlessness of the operator. Simple structure and low cost.

Referring to fig. 5 and 10, when the operator confirms that each state is correct and wants to continue to open the landing door, the landing door key can be pressed and pulled back to the normal state position, and after the bolt is pulled back to the normal position, the landing door can be normally opened for the second time.

As can be known from the figure 1, the landing door lock is arranged at the side of the door pocket, so that the decorative effect of the landing door is not influenced, and the landing door is more attractive.

As can be known from fig. 1 and 10, the lock tongue clamping plate is stepped, so that the lock tongue cannot extend out of the barrier layer door under normal conditions; the lock tongue clamping plate also comprises a lock tongue clamping groove, so that unlocking can be kept through the lock tongue clamping groove, the problem that the operation of opening the landing door by one hand is difficult due to the fact that the key is rotated by one hand is avoided, and particularly, the operation is more difficult when the landing door is wide; the spring bolt cardboard still includes a spring bolt flange, and when the spring bolt received layer door power of opening the door, spring compression on the layer door lock made the spring bolt hug closely the spring bolt flange, and the spring bolt flange can provide the additional strengthening and prevent further deformation. The cardboard shape is simple, and is with low costs. When the layer door has been opened, if the people were unblanked to layer door lock again, thereby the spring bolt can directly touch the decorative cover of layer door and make layer door decorate and draw flowers etc. so can adopt the mode of gluing a fritter rubber at the spring bolt tip and avoid.

As can be known from fig. 1, the latch hook swing link may be installed to the second floor door through a bracket and may swing through a rotation shaft disposed on the bracket, and the swing link only contacts with the rotation shaft and does not contact with the second floor door, so that the operation resistance is small. The connecting piece is connected between latch hook pendulum rod and retaining member, connects through the pivot mode, also can adopt the stay cord to connect, when the pendulum rod luffing motion, can drive the retaining member and unblank, because all moving parts all contactless with the layer door between, so holistic friction is little, and the reliability in utilization is high, longe-lived.

According to the landing door lock mechanism provided by the invention, the landing door lock hook is controlled to be opened through the landing door lock arranged on the side of the door pocket and the link mechanism arranged on the landing door, the structure is simple, the cost is low, the landing door lock is installed without opening a hole on the landing door, the landing door is more attractive, the link mechanism is controlled on the side of the landing door, after the landing door is opened for a certain width after unlocking, the side surface of the landing door is collided with the lock tongue to stop opening the landing door, personnel unbalance caused by too fast opening of the landing door is prevented from falling into a hoistway, the landing door lock is additionally provided with the elastic device, the lock tongue cannot rotate under normal conditions and extends out of the barrier landing door to be normally opened, the lock tongue can be clamped when the landing door lock is opened through the additional lock tongue clamping plate, the lock hook cannot be hooked again after a key is removed, and the opening operation of the high and large landing door is facilitated. Because the door lock is arranged at the side of the door sleeve, the decorative surface of the landing door can be complete without holes, the landing door is more beautiful, and particularly, the special decorative landing door such as a mirror surface and the like is more obvious.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The elevator landing door lock structure comprises a cross beam (1), a first landing door (2) and a second landing door (3), wherein the tops of the first landing door (2) and the second landing door (3) are correspondingly connected with a first hanging plate (4) and a second hanging plate (5), the first landing door (2) and the second landing door (3) are matched with the cross beam (1) in a movable opening and closing manner through the first hanging plate (4) and the second hanging plate (5), the elevator landing door lock structure is characterized in that a first locking member (8) is arranged on the position, corresponding to the first hanging plate (4), of the cross beam (1), a second locking member (9) is arranged on the second hanging plate (5), the first locking member (8) and the second locking member (9) are movably locked, the elevator landing door lock structure further comprises a landing door lock device for driving the second locking member (9) to be separated from the first locking member (8), and a secondary protection device for preventing operators from falling into a well, the secondary protection device drives the first layer door (2) and the second layer door (3) to be opened for the first time to form an observation port through which a human body cannot pass, after safety is confirmed, an operator needs to operate the layer door lock device again, and the first layer door (2) and the second layer door (3) can be opened completely after being opened for the second time.

2. An elevator landing door lock structure according to claim 1, characterized in that, the landing door lock device comprises a landing door lock (15) and a linkage mechanism engaged with the landing door lock, the landing door lock (15) comprises a lock cylinder (152), a return spring (153) disposed in the lock cylinder (152), and a latch (151) disposed at the lower part of the lock cylinder (152), the lock cylinder (152) is pressed down by a key to drive the latch (151) to press down, the key is turned to drive the latch (151) to rotate, thereby driving the linkage mechanism to drive the second locking member (9) to disengage from the first locking member (8), and the first landing door (2) and the second landing door (3) can be opened for the first time.

3. An elevator landing door lock structure according to claim 2, characterized in that the linkage mechanism comprises a swing link (12) and a connecting member (10), the swing link (12) is rotatably connected to the rear side of the second landing door (3) through a rotating shaft (13), one end of the swing link (12) is extended to the side of the second landing door (3), the other end of the swing link (12) is rotatably connected to one end of the connecting member (10), the other end of the connecting member (10) is rotatably connected to the end of the second locking member (9), and when the latch bolt (151) is rotated, the swing link (12) can be touched and pushed to rotate, so that the connecting member (10) can be used to drive the second locking member (9) to rotate, and the second locking member (9) can be disengaged from the first locking member (8).

4. An elevator landing door lock structure according to claim 3, wherein the secondary protection device comprises a latch plate (14) through which the latch (151) rotates, the latch plate (14) being disposed between the end of the swing link (12) from which the latch rod extends and the landing door lock (15).

5. The door lock structure of the elevator landing door according to claim 4, wherein the locking bolt clamping plate (14) is provided with a locking bolt unlocking slot (141) penetrating the locking bolt clamping plate, the locking bolt unlocking slot (141) is vertically arranged, a locking bolt clamping slot (142) is formed at the upper position of the locking bolt unlocking slot (141), and a locking bolt flange (143) is oppositely arranged opposite to the locking bolt clamping slot (142).

6. The elevator landing door lock structure according to claim 5, wherein the key is pressed to move the locking tongue (151) to a position opposite to the locking tongue unlocking groove (141), the key is turned to rotate the locking tongue (151), the distal end of the locking tongue (151) passes through the locking tongue unlocking groove (141), the locking tongue (151) rotates to the locking tongue unlocking groove (141) to release the force applied to the key, the return spring (153) recovers its shape to drive the locking tongue (151) to enter the locking tongue clamping groove (142), the lower end surface of the locking tongue (151) abuts against the bottom surface of the locking tongue clamping groove (142), the second locking member (9) is disengaged from the first locking member (8), the first landing door (2) and the second landing door can be opened for the first time, and the side surface of the second landing door (9) touches the locking tongue (151) to stop opening the second landing door (9), after the safety is confirmed, the operator resets the position of the bolt (151), and then the door can be opened for the second time.

7. The elevator landing door lock structure according to claim 6, wherein the connecting member (10) is a pull rod or a pull rope.

8. An elevator landing door lock structure according to claim 7, wherein the rotating shaft (13) is mounted on a bracket (11), and the bracket (11) is mounted on the rear side of the second landing door (3).

9. The elevator landing door lock structure according to claim 8, wherein the beam (1) is horizontally provided with a guide rail (7), and the first hanging plate (4) and the second hanging plate (5) are slidably connected with the guide rail (7) through rollers (6).

10. An elevator landing door lock structure according to claim 9, characterized in that the landing door lock (15) is installed at the door pocket side.