CN114718385A - Elevator door lock and vertical hinged door device - Google Patents

Abstract

The invention discloses an elevator door lock, which comprises a bottom plate, a safety mechanism arranged on the bottom plate, a lock tongue mechanism and a driving mechanism for driving the lock tongue mechanism to move, wherein the lock tongue mechanism comprises a movable shaft movably arranged on the bottom plate, a lock tongue fixed at the lower part of the movable shaft and an elastic piece sleeved outside the movable shaft, the driving mechanism is used for driving the lock tongue to move upwards, and the elastic piece is used for driving the lock tongue to move downwards; the safety mechanism comprises a first travel switch, a first collision plate, a second travel switch and a second collision plate, wherein the first collision plate, the second collision plate and the second collision plate are corresponding to each other, and the first collision plate and/or the second collision plate are/is fixed on the movable shaft. According to the elevator door lock, the driving mechanism is arranged to drive the spring bolt mechanism to realize locking, the safety mechanism is used for ensuring the safety verification of unlocking and locking, the size of the door lock is effectively reduced on the premise of ensuring the locking accuracy, and the elevator door lock is wide in application range and high in safety.

Description

Elevator door lock and vertical hinged door device

Technical Field

The invention relates to the technical field of elevators, in particular to an elevator door lock suitable for an automatic vertical hinged door and a vertical hinged door device comprising the elevator door lock.

Background

With the advance of cities and construction, the living standard of people is continuously improved, and the market demand for household elevators is also continuously improved.

The double-door elevator door lock of the household platform elevator on the market at present has the following defects: due to the double-bolt design, the size is overlarge, and the required traction force is also larger; a mechanical gear driving structure is adopted, when the gear is locked during operation, the gear is unsmooth in lock falling, and the gear is not automatically locked in case of emergency power failure, so that the safety is influenced; the arranged emergency manual unlocking device is external, occupies a large amount of space and causes waste of space.

Disclosure of Invention

In view of the above, in order to solve the problems in the prior art, the present invention provides an improved elevator door lock, which has a compact structure and is safe and reliable to operate.

In order to achieve the purpose, the invention adopts the following technical scheme:

an elevator door lock comprises a bottom plate, a safety mechanism arranged on the bottom plate, a spring bolt mechanism and a driving mechanism for driving the spring bolt mechanism to move, wherein the spring bolt mechanism comprises a movable shaft movably arranged on the bottom plate, a spring bolt fixed at the lower part of the movable shaft and an elastic piece sleeved outside the movable shaft, the driving mechanism is used for driving the spring bolt to move upwards, and the elastic piece is used for driving the spring bolt to move downwards; the safety mechanism comprises a first travel switch, a first collision plate, a second travel switch and a second collision plate, wherein the first collision plate, the second collision plate and the second collision plate are corresponding to each other, and the first collision plate and/or the second collision plate are/is fixed on the movable shaft.

According to some preferred aspects of the present invention, the driving mechanism includes a driver for shortening a length of a connecting member between an output end of the driver and a fixed member to raise a level of the fixed member, a fixed member fixed to the movable shaft, and a connecting member connected between the output end of the driver and the fixed member.

According to some preferred aspects of the invention, one end of the connecting member is connected to the output end of the driver, the other end of the connecting member is connected to the fixing member, and the output end of the driver, the connecting member and the fixing member are located in the same vertical plane perpendicular to the base plate. In some embodiments, the coupling member is preferably a flexible pull cord, and the output end of the driver is provided with a spool, one end of the pull cord being secured to the spool and the other end of the pull cord being secured to the securing member. The stationary member extends in a direction perpendicular to the movable axis towards the actuator. When the height of the movable shaft, namely the lock tongue, needs to be lifted, the driver is started, the winding drum rotates, the traction rope is wound on the winding drum, and then the movable shaft is dragged to move upwards. In order to further increase the reliability of the equipment, on one hand, the traction rope adopts a flat rope body so as to be attached to the winding drum, and the winding drum is provided with a groove for accommodating the rope body so as to prevent the rope body from falling off; on the other hand, the edge of the winding drum is provided with a fixing hole, the end part of the traction rope extends into the fixing hole, and one end of the traction rope is fixed in the fixing hole through a bolt, a screw and the like; moreover, the haulage rope is located the reel and keeps away from one side of bottom plate to avoid taking place the touching with the bottom plate. Through above setting, increase the stability of structure.

According to some preferred implementation aspects of the invention, the bottom plate comprises a first bending plate, the movable shaft movably penetrates through the first bending plate, the bottom of the movable shaft is provided with a supporting part, one end of the elastic element acts on the supporting part, and the other end of the elastic element acts on the bending plate; a first cushion pad (ring) is arranged between the elastic piece and the bending plate. The elastic piece is supported and limited through the first bending plate and the supporting portion, so that the downward movement trend of the lock tongue is provided through the elastic piece. The resilient member is preferably a spring. In some embodiments, a section of stepped portion is further designed above the supporting portion, and the diameter of the stepped portion is smaller than that of the supporting portion and smaller than the inner diameter of the elastic member, so as to guide the compression and extension of the elastic member, and prevent the elastic member from being distorted due to an excessively large compression range, which results in structural failure.

According to some preferred embodiments of the present invention, the bottom plate includes a second bending plate, the locking tongue is movably inserted through the second bending plate, and a second cushion (ring) is disposed between a bottom of the movable shaft and the second bending plate. The function of buffering and noise reduction is realized by the first buffer pad (ring) and the second buffer pad (ring).

According to some preferred implementation aspects of the invention, one side of the movable shaft, which is close to the bottom plate, is provided with an unlocking hole, and the bottom plate is provided with a kidney-shaped hole which extends along the vertical direction and corresponds to the unlocking hole; the unlocking hole is positioned between the bottom surface and the top surface of the waist-shaped hole. The waist-shaped hole penetrates through the thickness direction of the bottom plate. The unlocking hole is used for manual unlocking in an emergency state. If under special circumstances such as outage, lock motor or driver damage, up lifting after running through waist type hole and inserting the unlocking hole through special unlocking lever or other rod-shaped object that the size is suitable, can realize urgent unblock, the elastic component is at compression state this moment, takes out behind the rod-shaped object, and the spring bolt resets under the effect of elastic component, and the automatic lock that falls, the security is good and promptly unblank conveniently.

According to some preferred aspects of the invention, the first travel switch has a drop lock contact, the first striker plate being located above the drop lock contact; the second travel switch is provided with an unlocking contact, and the second striking plate is positioned below the unlocking contact. Specifically, the motor driver is electrified to operate, the winding drum rotates to wind the traction rope, the spring bolt is lifted, the lock is unlocked, meanwhile, the second collision plate impacts the second travel switch, an unlocking signal is given, the door plate of the vertical hinged door is further opened, the elevator stops running, and at the moment, the spring is in a compressed state; the motor driver is powered off, the spring bolt and the first collision plate move downwards under the action of the elastic piece to lock, meanwhile, the first collision plate collides with the first travel switch to give a lock falling signal, and the elevator starts to run.

According to some preferred embodiments of the present invention, the first striking plate and the second striking plate are fixedly connected, and the first striking plate is fixed to the top of the movable shaft through a connecting plate, so that the first striking plate and the second striking plate move synchronously with the movable shaft. In some embodiments, the first striking plate, the second striking plate and the connecting plate are integrally formed, and the first striking plate and the second striking plate are integrally formed in a C-shaped cross section with an opening facing the bottom plate, so that the first travel switch and the second travel switch are arranged between the first striking plate and the second striking plate.

According to some preferred embodiments of the present invention, the door lock further comprises a second door touch plate, and the latch is located between the second door touch plate and the second door touch plate. The first door touch panel and the second door touch panel are used for being matched with the insertion blocks on the door panel to sense whether the door panel is closed in place or opened, so that follow-up action is carried out, and the running safety of the elevator is improved. The double-door lock has the advantages that the single lock tongue controls the double-door simultaneously, the size of the door lock is effectively reduced on the premise of ensuring the locking accuracy, and the application range is wide.

The invention also provides a vertical hinged door device comprising the elevator door lock.

Compared with the prior art, the invention has the advantages that: according to the elevator door lock, the driving mechanism is arranged to drive the spring bolt mechanism to realize locking, the safety mechanism is used for ensuring the safety verification of unlocking and locking, the size of the door lock is effectively reduced on the premise of ensuring the locking accuracy, and the elevator door lock is wide in application range and high in safety.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic front view of a door lock according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a hidden portion of a door lock according to an embodiment of the present invention;

FIG. 3 is a schematic front view of the movable shaft and the striking plate of the embodiment of the present invention;

FIG. 4 is a schematic side view of the movable shaft and the striking plate after being connected according to the embodiment of the present invention;

wherein: the door lock comprises a door lock-10, a bottom plate-101, a first bending plate-1011, a second bending plate-1012, a mounting plate-1013, a limiting ring-1014, a first travel switch-1021, a second travel switch-1022, a drop lock contact-1023, an unlocking contact-1024, a first striking plate-1025, a second striking plate-1026, a connecting plate-1027, a movable shaft-1031, a bolt-1032, an elastic piece-1033, a supporting part-1034, a fixing piece-1035, an unlocking hole-1036, a driver-1041, a connecting piece-1042, a reel-1043, a fixing hole-1044, a first cushion-1051, a second cushion-1052, a first door contact-1061, a second door contact-1062, an insertion hole-1063 and a wiring port-107.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. 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.

In this embodiment, the home elevator is a double-door arrangement, and has a vertical hinged door device, which includes two door panels arranged in bilateral symmetry, a door lock 10 located at the top of the middle position (the symmetry axis between the two door panels) between the two door panels, and other conventional components; the door lock 10 is used to lock two door panels to fix the positions of the two door panels or to release the two door panels so that the two door panels can move freely.

As shown in fig. 1 to 4, the elevator door lock 10 in this embodiment includes a bottom plate 101, a wiring port 107, a safety mechanism disposed on the bottom plate 101, a latch mechanism, a driving mechanism for driving the latch mechanism to move, and a first door touch plate 1061 and a second door touch plate 1062 engaged with two door panels. The bottom plate in this embodiment is provided with a mounting plate 1013 for mounting a door touch panel. The connection port 107 is used for electrical and signal connection with a control board in the side hung door device.

The latch mechanism in this embodiment includes a movable shaft 1031 movably disposed on the bottom plate 101, a latch 1032 fixed to a lower portion of the movable shaft 1031, and an elastic member 1033 sleeved on the movable shaft 1031. The base plate 101 includes a first bending plate 1011 and a second bending plate 1012 for the movable shaft 1031 to movably penetrate, and the first bending plate 1011 is located above the second bending plate 1012. The bottom of the movable shaft 1031 has a support portion 1034, one end of the elastic element 1033 acts on the support portion 1034, and the other end of the elastic element 1033 acts on the first bending plate 1011; a first cushion (loop) 1051 is provided between the elastic member 1033 and the first bending plate 1011. A limit ring 1014 is further disposed below the support portion 1034, a second cushion pad (ring) 1052 is disposed between the limit ring 1014 and the second bending plate 1012, and the limit ring 1014 and the second cushion pad (ring) 1052 are used in cooperation for fall lock limit. Meanwhile, the buffering and noise reduction effects are achieved by the first buffer pad 1051 and the second buffer pad 1052. The spring 1033 is supported and restrained by the first bending plate 1011 and the support portion 1034, so that the lock tongue 1032 is provided with a downward movement tendency by the spring 1033. The elastic member 1033 is preferably a spring.

In this embodiment, a step portion is further designed above the support portion 1034, and the diameter of the step portion is smaller than the support portion 1034 and smaller than the inner diameter of the elastic member 1033, so as to guide the compression and extension of the elastic member 1033, and prevent the elastic member 1033 from being distorted due to an excessively large compression range, which results in structural failure.

The latch tongue 1032 in this embodiment is located between the first door touch plate 1061 and the second door touch plate 1062, that is, the latch tongue 1032 is located between two door panels, and is used for locking the two door panels at the same time. The door panel has a recess for insertion of a latch 1032. The first door touch panel 1061 and the second door touch panel 1062 are provided with insertion holes 1063 for cooperating with the insertion blocks on the door panel to sense whether the door panel is closed in place, so as to perform subsequent actions and improve the safety of elevator operation. In addition, in the embodiment, the single lock tongue 1032 controls the double doors simultaneously, so that the size of the door lock 10 is effectively reduced on the premise of ensuring the locking accuracy, and the application range is wide.

The driving mechanism is used for driving the lock tongue 1032 to move upwards, and the elastic piece 1033 is used for driving the lock tongue 1032 to move downwards. The driving mechanism in this embodiment comprises an actuator 1041, a fixing member 1035 fixed to the movable shaft 1031, and a connecting member 1042 connected between the output end of the actuator 1041 and the fixing member 1035, wherein the actuator 1041 is used to shorten the length of the connecting member 1042 between the output end of the actuator 1041 and the fixing member 1035 to raise the horizontal height of the fixing member 1035. The driver 1041 is preferably a motor. One end of the connecting member 1042 is connected to the output end of the driver 1041, the other end of the connecting member 1042 is connected to the fixing member 1035, and the output end of the driver 1041, the connecting member 1042 and the fixing member 1035 are located in the same vertical plane perpendicular to the base plate 101.

In this embodiment, the connecting element 1042 is preferably a flexible pulling rope, and the output end of the driver 1041 is provided with a winding drum 1043, one end of the pulling rope is fixed on the winding drum 1043, and the other end is fixed on the fixing element 1035. The fixed member extends in a direction perpendicular to the movable axis 1031 toward the driver 1041. When the movable shaft 1031, i.e., the lock tongue 1032, needs to be lifted, the driver 1041 is activated, the winding drum 1043 rotates, the traction rope is wound on the winding drum 1043, and the movable shaft 1031 is pulled to move upwards. In addition, in order to further increase the reliability of the structure, on one hand, the pulling rope is a flat rope body so that the pulling rope is attached to the winding drum 1043, and a groove for accommodating the rope body is formed in the winding drum 1043 so as to prevent the rope body from falling off; on the other hand, a fixing hole 1044 is formed in the edge of the winding drum 1043, the end of the traction rope extends into the fixing hole 1044, and one end of the traction rope is fixed in the fixing hole 1044 through a bolt, a screw and the like; furthermore, the pulling rope is located on the side of the winding drum 1043 away from the bottom plate 101 to avoid touching the bottom plate 101. Through above setting, increase the reliability and the stability of structure.

The safety mechanism in this embodiment includes a first travel switch 1021 and a corresponding first striking plate 1025, a second travel switch 1022 and a corresponding second striking plate 1026, and the first striking plate 1025 and the second striking plate 1026 are fixed to a movable shaft 1031. Specifically, the first striking plate 1025 and the second striking plate 1026 are fixedly connected, and the first striking plate 1025 is fixed on the top of the movable shaft 1031 through the connecting plate 1027, so that the first striking plate 1025 and the second striking plate 1026 move synchronously with the movable shaft 1031.

In this embodiment, the first striking plate 1025, the second striking plate 1026 and the connecting plate 1027 are integrally formed, and the first striking plate 1025 and the second striking plate 1026 are integrally formed into a C-shape in cross section, which is open toward the bottom plate 101, so that the first stroke switch 1021 and the second stroke switch 1022 are disposed between the first striking plate 1025 and the second striking plate 1026.

The first travel switch 1021 has a drop-lock contact 1023, and the first striking plate 1025 is located above the drop-lock contact 1023; the second travel switch 1022 has an unlocking contact 1024, and the second striking plate 1026 is located below the unlocking contact 1024. Specifically, the driver 1041 is powered on to operate, the winding drum 1043 rotates to wind the traction rope, the lock tongue 1032 is lifted, and then the lock is unlocked, meanwhile, the second striking plate 1026 impacts the second travel switch 1022, an unlocking signal is given, the door plate of the vertical hinged door is further opened, the elevator stops running, and at the moment, the spring is in a compressed state; the motor driver 1041 is powered off, the lock tongue 1032 and the first striking plate 1025 move downwards to be inserted into the groove under the action of the elastic element 1033, the lock is dropped, meanwhile, the first striking plate 1025 strikes the first travel switch 1021, a lock dropping signal is given, and the elevator starts to run.

In order to facilitate emergency unlocking and avoid large occupied space of an emergency manual unlocking device, in the embodiment, an unlocking hole 1036 is formed in one side, close to the bottom plate 101, of the movable shaft 1031, and a waist-shaped hole extending in the vertical direction is formed in the bottom plate 101 corresponding to the unlocking hole 1036; the unlocking aperture 1036 is located between the bottom and top surfaces of the kidney shaped aperture. The kidney-shaped hole penetrates through the thickness direction of the base plate 101. The unlocking hole 1036 is used for manual unlocking in an emergency. Under special circumstances such as outage, damage of door lock motor or driver 1041, pass through waist type hole and lift up after inserting out lockhole 1036 through special unlocking lever or other rod-like objects of suitable size, can realize urgent unblock, elastic component 1033 is at the compression state this moment, after taking out rod-like object, spring bolt 1032 resets under the effect of elastic component 1033, automatic lock that falls, and the security is good and promptly unblanks conveniently.

The operation of the door lock 10 in this embodiment is briefly described as follows:

when the side hung door needs to be opened, the driver 1041 is started, the winding drum 1043 rotates, so that the traction rope is wound on the winding drum 1043, the fixing piece 1035 drives the movable shaft 1031 and the lock tongue 1032 to move upwards, the lock tongue 1032 is separated from the groove at the upper end of the door panel, and the door panel can be freely opened. Meanwhile, the second striking plate 1026 on the movable shaft 1031 strikes the second travel switch 1022 to give an unlocking signal, so that the vertical hinged door panel is opened, the elevator stops running, and the spring is in a compressed state at the moment.

When the vertical hinged door needs to be closed, the insertion block on the door plate is inserted into the door touch plate on the door lock 10, the driver 1041 is powered off, and the lock tongue 1032 automatically falls down under the restoring force of the elastic piece 1033. At the same time, the first striking plate 1025 on the movable shaft 1031 moves downward to strike the first travel switch 1021, giving a lock-down signal, and the elevator starts to run.

The elevator door lock has the advantages that the elevator door lock is designed with the single lock tongue, and the structure is compact; the motor pulls the lock tongue through the rope, the lock tongue moves smoothly, and the structure is reliable; the emergency artificial unlocking is designed behind the lock, so that the space occupation is reduced; the detection contact that integrated door plant targets in place, the wiring position is whole to be hidden, and the outward appearance is more succinct.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims (10)

1. An elevator door lock is characterized by comprising a bottom plate, a safety mechanism arranged on the bottom plate, a lock tongue mechanism and a driving mechanism for driving the lock tongue mechanism to move, wherein the lock tongue mechanism comprises a movable shaft movably arranged on the bottom plate, a lock tongue fixed at the lower part of the movable shaft and an elastic piece sleeved outside the movable shaft, the driving mechanism is used for driving the lock tongue to move upwards, and the elastic piece is used for driving the lock tongue to move downwards; the safety mechanism comprises a first travel switch, a first collision plate, a second travel switch and a second collision plate, wherein the first collision plate, the second collision plate and the second collision plate are corresponding to each other, and the first collision plate and/or the second collision plate are/is fixed on the movable shaft.

2. The elevator door lock of claim 1, wherein the drive mechanism includes an actuator, a stationary member fixed to the movable shaft, and a connecting member connected between an output end of the actuator and the stationary member, the actuator for shortening a length of the connecting member between the output end of the actuator and the stationary member to raise a level of the stationary member.

3. The elevator door lock of claim 2, wherein one end of the connecting member is connected to the output end of the actuator and the other end of the connecting member is connected to the fixing member, the output end of the actuator, the connecting member, and the fixing member being located in a same vertical plane perpendicular to the bottom plate.

4. The elevator door lock of claim 3, wherein the output end of the actuator is provided with a spool, the edge of the spool is provided with a fixing hole, and the end of the connecting member extends and is fixed in the fixing hole.

5. The elevator door lock according to claim 1, wherein the bottom plate includes a first bending plate, the movable shaft movably penetrates the first bending plate, a bottom of the movable shaft has a support portion, one end of the elastic member acts on the support portion, and the other end of the elastic member acts on the first bending plate; a first cushion pad is arranged between the elastic piece and the first bending plate.

6. The elevator door lock of claim 1, wherein the bottom plate includes a second bending plate, the locking tongue movably penetrates through the second bending plate, and a second cushion pad is disposed between the bottom of the movable shaft and the second bending plate.

7. The elevator door lock according to claim 1, wherein an unlocking hole is formed in one side of the movable shaft close to the bottom plate, and a waist-shaped hole extending in the vertical direction is formed in the bottom plate corresponding to the unlocking hole; the unlocking hole is positioned between the bottom surface and the top surface of the waist-shaped hole.

8. The elevator door lock of any of claims 1-7, wherein the first travel switch has a drop lock contact, the first striker plate being positioned above the drop lock contact; the second travel switch is provided with an unlocking contact, and the second striking plate is positioned below the unlocking contact.

9. The elevator door lock of any of claims 1-7, comprising a first door touch plate and a second door touch plate, wherein the locking bolt is positioned between the first door touch plate and the second door touch plate.

10. A vertical hinged door apparatus, characterized in that, comprising an elevator door lock according to any one of claims 1-9.

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