The content of the invention
The technical problems to be solved by the invention are to provide a kind of door lock device of elevator, and it can prevent that elevator door from being anticipated
Outer opening.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme:A kind of door lock device of elevator, including
Door knife bottom plate, door cutter mechanism and actuating arm, the door cutter mechanism and actuating arm are articulated with the door knife bottom plate, the drive
Swing arm is connected with the door cutter mechanism, and the belt pin of band connection synchronous with door machine is provided with the actuating arm, wherein, the electricity
The door lock device of ladder also includes retaining mechanism and maintaining body;
The retaining mechanism includes latch hook, hook plate and the drawing part for applying traction action power to the latch hook,
The latch hook is hinged with the door knife bottom plate, and described drawing part one end is connected with the actuating arm, the other end and the latch hook
Connection, the hook plate are fixed on a machine bottom board;
The maintaining body includes being articulated with the hinge arms between the door knife bottom plate and the actuating arm and being fixed on
The cushion block of the door machine bottom board, is provided with stressed member in the hinge arms, the hinge arms include first support arm and with it is described
The be hinged second support arm of first support arm;
When the elevator door is in open mode, the first support arm and the second support arm are in dead-centre position, institute
State latch hook and be in the state for departing from hook plate;When the elevator door is closed in place, the cushion block applies to the stressed member and made
Firmly to destroy the dead-centre position, the actuating arm rotates that make it that the latch hook is hooked in described under the drive of the timing belt
On hook plate.
Preferably, contact switch is set between the latch hook and the hook plate, and the contact switch is serially connected with the electricity
In the elevating control loop of ladder, when the latch hook is hooked on the hook plate, the contact switch is connected.
Preferably, the contact switch includes being arranged at the switch contact of the downside of the latch hook and is arranged at the hook
Verification component on plate, when the latch hook is hooked on the hook plate, the switch contact contacts with the verification component.
Preferably, the drawing part is brake cable.
Preferably, the door lock device of the elevator also includes resetting-mechanism, and the resetting-mechanism includes connecting shaft and led
To part, the guiding parts is fixed on the door knife bottom plate, and described connecting shaft one end is hinged with the latch hook, the other end with
The guiding parts is slidably connected, and be set with the connecting shaft makes it be hooked on the hook plate for applying to the latch hook
The elastomeric element of elastic acting force.
Preferably, the door cutter mechanism includes left-hand door knife, right door knife and is articulated between the left-hand door knife and right door knife
Upper cursor and lower cursor, the upper cursor and the lower cursor be hinged with the door knife bottom plate, the driving
The axis coaxle that the axis and the upper cursor that arm is hinged with the door knife bottom plate are hinged with the door knife bottom plate.
Preferably, linkage block is fixed with the upper cursor, being fixed with the actuating arm can be with the linkage block
The connecting pin of grafting.
Preferably, it is provided with spring between the door knife bottom plate and the actuating arm.
Preferably, the first support arm is with the second support arm by hinge, and the stressed member is is arranged at
State the roller on bearing pin.
Compared with prior art, the beneficial effects of the present invention are:
1st, by setting retaining mechanism so that when closed, latch hook is hooked on hook plate elevator door, so, you can avoid electricity
Terraced door is pushed aside;
The 2nd, maintaining body is set, for locking mechanism so that latch hook is all the time in the shape lifted in door closing procedure
State, only after elevator door is closed, latch hook can be hooked on hook plate;
The 3rd, roller is set, the roller is acted on to destroy dead-centre position by cushion block, its active force is more flexible, avoids pair
Door cutter mechanism produces too large impact.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
Disclosed in this invention is a kind of door lock device of elevator, for after elevator door is closed, making it reliably lock, with
Occupant is avoided to take off the contingency caused by door.Wherein, elevator door includes layer door and car door, and car door is active door, and layer
Door is driven door, by the effect of door cutter mechanism, car door can be caused to open and drive layer door to open, or be so that car
Door is closed and drives layer door to close.
Referring to Fig. 1~Fig. 3, the door lock device of elevator of the invention, including door knife bottom plate 1, door cutter mechanism and actuating arm 16,
Wherein, door knife bottom plate 1, door cutter mechanism and actuating arm 16 together move with car door.Door machine bottom board 18 belongs to door machine device
Support member, it is fixed on car, it is impossible to as car door moves.
As shown in Figure 1 and Figure 2, door cutter mechanism and actuating arm 16 are articulated with a knife bottom plate 1, and it can be logical that this is be hinged
Axis connection either pin connection is crossed, the axle or pin riveting are loaded on door knife bottom plate 1, door cutter mechanism and actuating arm 16 can be relative
Rotated in the axle or pin.Actuating arm 16 is connected with door cutter mechanism, so that actuating arm 16 sends external impetus to knife
Mechanism, drive the action of door cutter mechanism.Routinely, the external impetus comes from a machine, and this machine has driving timing belt, the driving
The belt pin 11 of band connection synchronous with door machine is provided with arm 16, for example, the belt pin 11 can be by being fixed by caulking to this
On actuating arm 16, belt pin 11 is inserted in the timing belt clinching of a machine, belt pin 11 and door machine and the matching relationship of timing belt
Scheme of the prior art can be used, thus it is not reinflated.Generally, when door motor rotates, its timing belt can band
Move the actuating arm 16 to rotate around door knife bottom plate 1, and send power to cutter mechanism and a cutter mechanism is acted.
In the present invention, the door lock device of the elevator also includes retaining mechanism and maintaining body, and retaining mechanism is used in electricity
After terraced door is closed, by its firm locking, occupant is avoided to push door aside and contingency occurs;And maintaining body exists for elevator door
In closing process, actuating arm 16 can not act, and latch hook 5 is all the time in the state lifted, and ball chuck is tight on the door all the time for door cutter mechanism,
So as to ensure in the door closing procedure of elevator door, retaining mechanism will not produce obstacle to closing the door, and when shutdown is completed, actuating arm
16 can act, so that retaining mechanism can act.
Retaining mechanism includes latch hook 5, hook plate 8 and the drawing part 14 for applying traction action power to latch hook 5.Latch hook
5 is be hinged with door knife bottom plate 1, so as to be rotated around door knife bottom plate 1, similarly, this is be hinged to be the mode of pin or axle.
Drawing part 14 is preferably brake cable, and one end of drawing part 14 is connected with actuating arm 16, and the other end is connected with latch hook 5, actuating arm
During 16 action, drawing part 14 is driven to apply traction action power to latch hook 5, to depart from hook plate 8 or to be hooked on hook plate 8.
Hook plate 8 is fixed on a machine bottom board 18, and it is in the position of elevator door closing in place, i.e., after the completion of only working as elevator door closing,
Latch hook 5 can be just hooked on hook plate 8.When the elevator door is closed, latch hook 5 in the presence of actuating arm 16 relative to door knife bottom plate 1
Rotate, be hooked on hook plate 8, so can both realize the reliable locking of elevator door, and prevent from being accidentally opened.
Maintaining body includes the hinge arms 13 being articulated between knife bottom plate 1 and actuating arm 16 and is fixed on a machine bottom board
18 cushion block 12.Hinge arms 13 are articulated between knife bottom plate 1 and actuating arm 16, and stressed member is provided with hinge arms 13, should
Stressed member is arranged at side of the hinge arms 13 away from a knife bottom plate 1.Hinge arms 13 include first support arm 131 and and first support arm
131 be hinged second support arms 132, so, the first support arms 131 of hinge arms 13, second support arm 132 and actuating arm 16 and door knife
Bottom plate 1 constitutes a four-bar mechanism.
As shown in figure 3, when elevator door is in open mode (it is, elevator door is opened and is maintained at the state completely)
When, first support arm 131 and second support arm 132 are in dead-centre position, and first support arm 131 is linearly with second support arm 132, and this four
Linkage can not act, and state of the latch hook 5 in disengaging hook plate 8 under the active force of drawing part 14.Closed in elevator door
During closing, due to the dead-centre position so that actuating arm 16 can not rotate relative to door knife bottom plate 1, and timing belt is merely able to band
Move the actuating arm 16, door cutter mechanism and the entirety of door knife bottom plate 1 and do horizontal displacement so that elevator door progressively closes off.Work as elevator door
When closing in place, the cushion block 12 on door machine bottom board 18 applies active force to destroy dead point to the stressed member in hinge arms 13
Position, actuating arm 16 rotates under the drive of timing belt causes latch hook 5 to be hooked on hook plate 8.Specifically, elevator door is closed in place
When, the stressed member in hinge arms 13 is in contact with the cushion block 12, and the cushion block 12 acts power to the stressed member, the effect
Power causes above-mentioned dead-centre position to be destroyed, and now, the four-bar mechanism can act, under the active force of timing belt, actuating arm 16
Rotation can be produced relative to door knife bottom plate 1, eliminate drawing part 14 to the traction action power of latch hook 5, be finally hooked in latch hook 5
Hook plate 8 is locked.
As described above, cushion block 12 is used for the dead-centre position for destroying hinge arms 13, and stressed member can be arranged at hinge arms
13 first support arm 131, second support arm 132 or the junction of the two, preferably, first support arm 131 and second
Support arm 132 is be hinged by bearing pin 20, and the stressed member is the roller 19 being arranged on the bearing pin 20, and the pair roller 19 of cushion block 12 applies
Active force is to destroy dead-centre position.I.e. when elevator door is to closed position, the roller 19 contacts with cushion block 12, and cushion block 12 is to the rolling
Wheel 19 acts power so that the roller 19 drives bearing pin 20 so that the bearing pin position is arched upward destroy dead point upwards.Should
Cushion block 12, it is preferably wedge shape so that roller 19 moves horizontally process (in elevator door closing process, by hinge arms in hinge arms 13
13 four-bar mechanisms for participating in forming are in dead-centre position, therefore hinge arms 13 only can together move horizontally with actuating arm 16) in
Move closer to cushion block 12 and be finally in contact with it.
To be further ensured that the safe to use of elevator, in of the invention, contact switch is set between latch hook 5 and hook plate 8, touched
Point switch is serially connected with the elevating control loop of elevator, and when latch hook 5 is hooked on hook plate 8, contact switch is connected.So, only when
After elevator door completely closes, the elevating control loop is connected, and elevator is only possible to be lifted, otherwise, elevating control loop one
Directly it is off, elevator can not lift.As shown in fig. 1, the contact switch includes switch contact 6 and verification component 7, should
Switch contact 6 is arranged at the downside of latch hook 5, verification component 7 is set on hook plate 8, when switch contact 6 contacts with verification component 7
When, contact switch conducting.
Latch hook 5 can be hooked on hook plate 8 after the traction action power of drawing part 14 eliminates according to self gravitation, as excellent
Select mode, scheme as present invention use:The door lock device of the elevator also includes resetting-mechanism 15, and resetting-mechanism 15 includes connecting
Spindle 152 and guiding parts 151, guiding parts 151 are fixed on a knife bottom plate 1, and the one end of connecting shaft 152 is be hinged with latch hook 5,
The other end is slidably connected with guiding parts 151, and be set with connecting shaft 152 makes it be hooked on hook plate 8 for applying to latch hook 5
The elastomeric element of elastic acting force, the elastomeric element can be spring 153.So, in elevator door opening procedure, drawing part
14 can pull the elastic acting force that latch hook 5 makes it overcome elastomeric element, and when elevator door closing in place when, drawing part 14
Active force is eliminated, and now, in the presence of the resetting-mechanism 15, latch hook 5 is rotated relative to door knife bottom plate 1 to be hooked on hook plate 8.
Door cutter mechanism includes left-hand door knife 2, right door knife 4 and the upper cursor 9 being articulated between left-hand door knife 2 and right door knife 4
With lower cursor 10, upper cursor 9 and lower cursor 10 are be hinged with door knife bottom plate 1, for ease of realizing that actuating arm 16 drives door
Cutter mechanism acts, and in the present invention, the axis and upper cursor 9 and door knife bottom plate 1 that actuating arm 16 is hinged with door knife bottom plate 1 are be hinged
Axis coaxle.So, the center of rotation of the two is identical, and the two is attached and can be achieved by it by simple connection member
Actuating arm 16 drives door cutter mechanism to act this purpose.It is preferred that being fixed with linkage block 17 on upper cursor 9, drive
Being fixed with arm 16 can be with the connecting pin of the grafting of linkage block 17.This structure, hole can be opened up in linkage block 17, assembled
When, bearing pin is inserted into the linkage that actuating arm 16 and upper cursor 9 can be achieved in the hole.Certainly, linkage block 17 and the grafting of bearing pin
Should ensure that when elevator door works, the two without departing from.It is on the other side to be, if actuating arm 16 is cut with scissors with the door knife bottom plate 1
The axis and upper cursor 9 connect and the axis that the door knife bottom plate 1 is hinged be not coaxial, then usually requires to use more bars (four bars
More than) mechanism realizes the linkage of upper cursor 9 and actuating arm 16.
In addition, preferably, in the present invention, spring 3 is provided between door knife bottom plate 1 and actuating arm 16, the spring 3
A cutter mechanism can be ensured to the steady clamping of croquet, and latch hook 5 is steadily opened.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Kind modification or equivalent substitution, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.