CN113291958B - Elevator synchronous door vane position retaining device - Google Patents
Elevator synchronous door vane position retaining device Download PDFInfo
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- CN113291958B CN113291958B CN202110674556.9A CN202110674556A CN113291958B CN 113291958 B CN113291958 B CN 113291958B CN 202110674556 A CN202110674556 A CN 202110674556A CN 113291958 B CN113291958 B CN 113291958B
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- door
- rocker
- bottom plate
- sword
- close
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
Abstract
The utility model relates to a synchronous door sword position holding device of elevator belongs to elevator door machine field, including a door sword bottom plate, door sword bottom plate one side is rotated and is connected with a sword rocker, and a sword bottom plate is close to door sword rocker position department and is provided with the gag lever post that is used for locking a sword rocker, is provided with the elasticity between a sword rocker and the door sword bottom plate and draws and hold the piece, and the elasticity is drawn and is held the piece and be used for keeping drawing of a sword rocker and a sword bottom plate when a sword rocker rotates. The application improves the condition that the door stop of the door knife rocker relative to the door knife bottom plate in the rotating process of the door knife bottom plate causes the secondary door closing when the door is closed.
Description
Technical Field
The application relates to the field of elevator door motors, in particular to a synchronous elevator door vane position retaining device.
Background
An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. The car elevator generally includes a car that slides up and down in an elevator shaft and landing doors that are provided at each floor, and when the car reaches a predetermined number of floors, a car door and the landing doors are opened simultaneously, so that a person can enter or leave the elevator.
The invention discloses a synchronous door knife and an elevator in a Chinese invention patent document with a publication number of CN112693998A, and relates to the technical field of elevator equipment, wherein the synchronous door knife comprises: the knife arm assembly comprises a first knife arm, a second knife arm, a first connecting rod and a second connecting rod, the first knife arm, the second knife arm, the first connecting rod and the second connecting rod jointly form a parallelogram mechanism with variable intervals, and the minimum interval L between the first knife arm and the second knife arm is larger than the diameter D of a layer gate ball; the door knife transmission component is connected with the knife arm component and is used for driving the knife arm component to rotate.
In addition, chinese patent publication No. CN102862904B discloses an asynchronous door knife of an elevator door motor. The clamping action of the landing door linkage door ball is realized by the cooperation of the door knife component and the cam device, so that the linkage of the car door and the landing door is realized. The door knife assembly is mounted on the moving part and the cam device is mounted on the stationary part. In the door closing process of the linked switch door, the door knife component clamps the landing door linked door ball, and the asynchronous door knife realizes self-locking, so that the thrust of the landing door linked door ball can be continuously and stably provided; when the door is closed, the cam device acts on the door knife assembly to form a required interval between the asynchronous door knife and the landing door linkage door ball, and the asynchronous door knife is loosened; when the door is completely closed, the door knife component cannot generate the action of sandwiching the door linkage door ball under the action of the cam device, and the interval between the door knife component and the landing door linkage door ball is reliable.
The door in-process of closing the door at the elevator is often used to a door machine equipment, and the synchronous machine of door machine passes through the hold-in range and drives the door sword rocker of connecting on sedan-chair door link plate and remove, and the door sword rocker drives the tool arm subassembly through transmission structure and transports, and then drives elevator sedan-chair door and the aspect is closed. At the last stroke stage that the sedan-chair door was closed, restriction door sword rocker pivoted spacing subassembly is triggered the unblock because of being close to of two sedan-chair door link plates, and the door sword rocker obtains the door ball of unblanking that drives knife arm subassembly release layer door under the drive of hold-in range after the release. Door sword rocker is in the free rotation state relative sedan-chair door this moment, and the force that the hold-in range was exerted is used for driving a sword rocker and rotates, and a sword rocker does not drag the sedan-chair door at the free rotation in-process and continues to be closed, and the sedan-chair door stops the closure temporarily, and after door sword rocker and tool arm subassembly self action were ended, door sword rocker was continued to rotate by the restriction, and then door sword rocker continues to drive the sedan-chair door and is close to each other and accomplish the sedan-chair door closure.
In view of the above related technologies, the inventor thinks that in the time period when the limit component removes the rotation limit on the door knife rocker, the synchronous belt only drives the door knife rocker and the knife arm component to move, the car door continues to be closed after the movement of the knife arm component is finished, and the car door is temporarily stopped to cause the experience of 'secondary door closing' for passengers, so that the passengers are easy to panic and have adverse effects on elevator brands.
Disclosure of Invention
In order to improve the circumstances that the door stop caused the secondary to close the door when the sedan-chair door closed door sword rocker rotates the in-process sedan-chair door relative door sword bottom plate, this application provides a synchronous door sword position retaining device of elevator.
The application provides a synchronous door sword position holding device of elevator adopts following technical scheme:
the utility model provides a synchronous door sword position holding device of elevator, includes door sword bottom plate, and door sword bottom plate one side is rotated and is connected with a sword rocker, and door sword bottom plate is close to door sword rocker position department and is provided with the gag lever post that is used for locking a sword rocker, is provided with elasticity between door sword rocker and the door sword bottom plate and draws and hold the piece, and elasticity draws and holds the piece and is used for keeping drawing of door sword rocker and door sword bottom plate and holding when door sword rocker rotates.
By adopting the scheme, when the door is opened, the door knife rocker rotates towards the direction far away from the car door on the other side under the traction of the door machine synchronous belt, the door knife rocker drives the components related to unlocking to unlock the car door, and then the door knife rocker drags the car door to open under the traction of the door machine synchronous belt; when the door is closed, the door knife rocker cannot rotate due to the locking of the limiting rod, the door knife rocker drives the car door to be closed under the traction of the door machine synchronous belt, when the car door is to be closed, the limiting rod is triggered by the car door on the other side to release the locking of the door knife rocker, the door knife rocker rotates towards the car door on the other side, and the door knife rocker drives the components related to the lock falling to lock the two car doors. When the door knife rocker rotates towards the car door at the other side, the elastic pulling and holding piece keeps the door knife rocker and the door knife bottom plate pulled and held, the mechanical connection between the door knife rocker and the door knife bottom plate is enhanced, and the condition that the door knife rocker is in a free rotation state relative to the door knife bottom plate is reduced. The elastic pulling and holding piece enables the door knife rocker to rotate and simultaneously keeps pulling and holding the door knife bottom plate, the smoothness of closing the car door is improved, and the occurrence probability of secondary door closing of the car door is reduced.
Preferably, the elastic pulling and holding piece is a push spring, one end of the push spring is rotatably connected to the position, far away from the other side of the car door, of the door knife rocker, the other end of the push spring is rotatably connected to the position, far away from the other side of the car door, of the door knife bottom plate, and the connection position of the push spring and the door knife rocker is located on one side, close to the ground, of the connection line of the rotation circle center of the door knife rocker and the rotation circle center of the push spring.
By adopting the scheme, when the car door is opened, the push spring is downwards inclined from one end far away from the door knife rocker to one end close to the door knife rocker, the extension line of the length direction of the push spring is positioned below the rotating connection position of the door knife rocker and the door knife bottom plate, the lock on the door knife rocker is released along with the mutual approach of the two car doors to the limiting rod, the door knife rocker rotates towards the car door on the other side under the driving of the door machine synchronous belt, the compressed degree of the push spring is increased in the process, the car door is driven to be closed and tightly closed by the push spring in the rotating process of the door knife rocker, and the probability of secondary door closing caused by car door pause is reduced;
the car door is closed and tightly closed along with the continuous rotation of the door knife rocker, and at the moment, the extension line of the length direction of the push spring passes through the rotary connection part of the door knife rocker and the door knife bottom plate, so that the push spring reaches the maximum compression amount;
the door sword rocker continues to rotate to the opposite side sedan-chair door direction, pushes away the extension line of spring length direction and is located door sword rocker and door sword bottom plate and rotates the top of junction, pushes away the spring and weakens by the more last position state of compression degree, and the elasticity direction of pushing away the spring is unanimous with the rotation direction of door sword rocker, pushes away the spring this moment and provides a continuous resistance and reduces the unexpected probability that reverses of door sword rocker, improves the security of elevator lift in-process sedan-chair door.
Preferably, the door knife rocker is rotatably connected with a spring guide rod corresponding to the spring pushing position, the spring pushing sleeve is arranged on the spring guide rod, the door knife bottom plate is rotatably connected with a spring guide frame corresponding to the spring guide rod, the spring guide rod is connected to the spring guide frame in a sliding mode, the spring guide rod slides along the length direction of the spring guide rod, one end of the pushing spring is abutted to the position, close to the door knife rocker, of the spring guide rod, the other end of the pushing spring is abutted to the spring guide frame, and the pushing spring gives force for the spring guide rod to keep away from the spring guide frame.
By adopting the scheme, the spring guide frame and the spring guide rod are matched with each other to limit the rotation and the compression of the push spring, so that the stability of the motion state of the push spring in the rotation process of the door knife rocker is improved, and the probability of deflection and distortion of the push spring in the compression process is reduced; in the rotating process of the door knife rocker, the spring guide frame rotates along with the spring guide rod and the door knife rocker, the direction of the force of the push spring on the door knife rocker rotates along with the door knife rocker, and under the condition that the rotating amplitude of the door knife rocker is not large, the direction of the push spring pressure can be changed at a large angle, so that the force arm of the push spring pressure on the door knife rocker is increased, the force moment is further increased, and the mechanical connection between the door knife rocker and the door knife bottom plate is enhanced.
Preferably, the spring guide frame is close to one end of the door knife rocker and fixedly connected with a U-shaped shifting fork, the U-shaped shifting fork is arranged along the length direction of the spring guide frame, the position, corresponding to the U-shaped shifting fork, of the door knife rocker is rotatably connected with a shifting fork shaft, the shifting fork shaft is connected to the U-shaped shifting fork in a sliding mode, the shifting fork shaft slides along the length direction of the U-shaped shifting fork, and the spring guide rod is close to one end of the door knife rocker and rotatably connected to the shifting fork shaft.
By adopting the scheme, the shifting fork shaft is matched with the U-shaped shifting fork to further stabilize the motion tracks of the spring guide rod and the pushing spring, the stability of the pushing spring in the rotating process of the door knife rocker is improved, and the service life of the system is prolonged.
Preferably, the gag lever post is by being close to opposite side sedan-chair door one end to keeping away from opposite side sedan-chair door one end downward sloping, the gag lever post is close to opposite side sedan-chair door one end and stretches out a sword bottom plate setting, the gag lever post is kept away from opposite side sedan-chair door one end and is rotated and connect in a sword bottom plate and be close to ground position department, the gag lever post is close to ground position department fixedly connected with step flange, the step flange sets up along gag lever post length direction, the corresponding step flange position department of sword rocker rotates and is connected with first pivot, the step flange is close to opposite side sedan-chair door one end can butt in first pivot.
By adopting the scheme, when the car door opening door knife rocker rotates towards the direction far away from the car door on the other side, the first rotating shaft moves towards the direction far away from the step flange, the limiting rod falls down under the action of self weight, and one end, close to the car door on the other side, of the step flange abuts against the first rotating shaft; when the door knife rocker drives the door knife bottom plate to close the door, the step flange of the limiting rod limits the movement of the first rotating shaft, the door knife rocker is fixed relative to the door knife bottom plate, and the door knife rocker drags the car door to close under the action of the synchronous belt of the door machine; when the sedan-chair door is about to close, the gag lever post stretches out the touching of door sword bottom plate one end and sets firmly the touch panel on the door machine, because the incline direction of gag lever post self, the gag lever post stretches out one end and rotates to keeping away from first pivot direction under the striking effect, and the step flange is relieved the restriction to first pivot, and the door sword rocker resumes free rotation.
Preferably, the door knife bottom plate is rotatably connected with a second rotating shaft corresponding to one side of the limiting rod, which is far away from the first rotating shaft, and the limiting rod can abut against the position, close to the ground, of the second rotating shaft;
the door knife rocker corresponds second pivot position department and has seted up curved spacing groove, and the arc centre of a circle of spacing groove sets up with the rotation centre of a circle of door knife rocker with one heart, and second pivot sliding connection is in the spacing groove, and the second pivot slides along spacing groove length direction, and the second pivot can the butt correspond spacing groove both ends position department in door knife rocker.
By adopting the scheme, the second rotating shaft limits the rotation amplitude of the limiting rod, so that the probability that the limiting rod rotates excessively under the action of impact force to further impact other nearby structures when the limiting rod is lifted is reduced; the limiting groove limits the rotation amplitude of the door knife rocker in the rotation process of the door knife rocker, and reduces the probability that the door knife rocker excessively rotates to cause functional failure of other linkage structures.
Preferably, a knife arm assembly is arranged on one side, close to the landing door, of the door knife bottom plate, the knife arm assembly comprises two vertically arranged knife arms, a driving rocker and a driven rocker which are parallel to each other are arranged on one side, close to each other, of the two knife arms, two ends of the driving rocker and two ends of the driven rocker are rotatably connected to the knife arms, and the driving rocker and the driven rocker are both inclined downwards from one end, close to the other side car door, to one end, far away from the other side car door;
the position of the driving rocker, which is close to the car door on the other side, is rotatably connected with a third rotating shaft, an arc-shaped abdicating groove is formed in the position of the door knife bottom plate, which corresponds to the third rotating shaft, the arc-shaped circle center of the abdicating groove coincides with the rotating circle center of the driving rocker, the third rotating shaft penetrates through the abdicating groove, and the third rotating shaft is connected to the position of the door knife rocker, which is far away from the ground.
Through adopting above-mentioned scheme, when the sedan-chair door was opened, door sword rocker drove the third pivot and rotates to keeping away from opposite side sedan-chair door direction along the groove of stepping down, and the third pivot drives the initiative rocker and rotates to vertical direction, and the cooperation of initiative rocker and driven rocker removes two vertical tool arms to the direction of being close to each other, and two tool arms are pressed from both sides the croquet of unblanking of layer door tightly, and the tool arm subassembly is opened layer door under the drive of door sword rocker.
Preferably, the door sword rocker is close to opposite side sedan-chair door position department and rotates the locking lever that is connected with the level setting, the locking lever stretches out a sword bottom plate setting, the locking lever is kept away from a sword bottom plate one end and is hook-shaped setting, the locking lever is connected with the pressure spring, the pressure spring is kept away from locking lever one end and is connected in a sword bottom plate and keep away from ground one end, the pressure spring gives the locking lever projecting part to the power on ground, the locking lever corresponds third pivot position department and has seted up curved drive groove, the arc centre of a circle in drive groove rotates the mutual eccentric settings in the centre of a circle of being connected with the locking lever, third pivot roll connection is in the drive groove, the third pivot can be followed drive groove length direction and rolled.
By adopting the scheme, when the car door is opened, the door knife rocker rotates to the position far away from the car door on the other side, the driving groove of the lock rod is matched with the third rotating shaft, the lock rod drives the third rotating shaft to move in the direction far away from the car door on the other side in the abdication groove, the third rotating shaft drives the knife arm to contact the unlocking door ball through the driving rocker, in the process, the elastic force of the pressure spring enables the lock rod to keep an approximately horizontal state, the locking reliability is increased, and the lock rod moves in the direction far away from the car door on the other side in an approximately horizontal manner under the driving of the door knife rocker and the limitation of the pressure spring; when the two knife arms contact the unlocking door ball, the reaction force of the unlocking door ball on the knife arms limits the movement of the third rotating shaft, the door knife rocker continues to rotate, the door knife rocker drives the lock rod to overcome the elasticity of the pressure spring to lift upwards, and the car door is unlocked; the door knife rocker continues to rotate, the third rotating shaft drives the two knife arms to clamp the unlocking door ball, and the two knife arms unlock and open the landing door through the unlocking door ball.
Preferably, the one end of door sword bottom plate far away from ground has the slider, and the slider slides along the horizontal direction at door sword bottom plate place plane, and the slider is close to opposite side sedan-chair door position department fixedly connected with safety contact, and the slider is kept away from opposite side sedan-chair door one end and is rotated and connect in the locking lever and be close to door sword rocker one end, and locking lever one end fixed connection is kept away from in the slider to the pressure spring.
Through adopting above-mentioned scheme, at the in-process of sedan-chair door switching, the slider is reciprocating motion along the horizontal direction in door sword bottom plate place plane under the drive of locking lever, and when the sedan-chair door was opened, the slider was to keeping away from opposite side sedan-chair door direction motion, and when the sedan-chair door was closed, the slider was to being close to opposite side sedan-chair door direction motion. The sliding block drives the safety contact to reciprocate along with the switch of the car door, and the elevator control system is helped to determine whether the car door is closed or not.
Preferably, the door sword bottom plate is close to locking lever position department and rotates and be connected with the pole of perk, and the pole of perk is kept away from door sword bottom plate one end and can the butt be close to ground one side in the locking lever, and the pole of perk is close to door sword bottom plate one end fixedly connected with stay cord, the first reset spring of perk pole fixedly connected with, and first reset spring keeps away from pole one end fixedly connected with in door sword bottom plate of perk, and the pole of perk is the horizontality under the first reset spring natural state.
Through adopting above-mentioned scheme, when the elevator accident was stranded the passenger, usable stay cord drove the stick up the pole and rotates, sticks up the pole and drives the lock pole and lift up and relieve the locking of sedan-chair door, sticks up the pole and is convenient for the staff and manual unblock rescue stranded personnel under the unexpected circumstances.
In summary, the present application has the following beneficial effects:
1. the push spring enables the door knife rocker to rotate and simultaneously keeps pulling and holding the door knife bottom plate, so that the smoothness of closing the car door is improved, and the occurrence probability of secondary door closing of the car door is reduced;
2. after the door is closed in place, the push spring provides a continuous resistance to reduce the probability of accidental reversion of the door knife rocker, so that the safety of the car door in the lifting process of the elevator is improved;
3. the spring guide frame and the spring guide rod are mutually matched to limit the rotation and the compression of the push spring, so that the stability of the motion state of the push spring in the rotating process of the door knife rocker is improved, and the probability of deflection and distortion of the push spring in the compression process is reduced.
Drawings
Fig. 1 is a schematic structural view of an elevator synchronous vane position maintaining device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a knife arm assembly of an elevator synchronous door knife position holding device according to an embodiment of the application;
fig. 3 is a schematic structural view of a lock lever embodying an elevator synchronous vane position maintaining device according to an embodiment of the present application;
fig. 4 is a schematic structural view of a spring guide frame of an elevator synchronous vane position maintaining device according to an embodiment of the present application.
Description of reference numerals: 1. a door vane base plate; 11. a yielding groove; 12. a second rotating shaft; 13. a second upright post; 2. a door vane rocker; 21. a power shaft; 22. a first rotating shaft; 23. a limiting groove; 24. an arc-shaped waist groove; 3. a limiting rod; 31. a friction ball; 32. a step flange; 33. a second return spring; 4. a knife arm assembly; 41. a cutter arm; 42. an active rocker; 421. a third rotating shaft; 43. a driven rocker; 5. a lock lever; 51. a pressure spring; 52. a drive slot; 53. a first upright post; 6. a slider; 61. a chute; 62. a safety contact; 7. raising the rod; 71. pulling a rope; 72. a first return spring; 8. a spring guide frame; 81. a spring guide rod; 811. a fork shaft; 82. a U-shaped shifting fork; 9. an elastic pull-holding member; 91. and pushing the spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses synchronous door vane position holding device of elevator. Referring to fig. 1 and 2, the elevator door comprises a door knife bottom plate 1 fixedly connected to a car door on one side, a door knife rocker 2 is rotatably connected to one side, close to the car, of the door knife bottom plate 1, and a power shaft 21 connected with a door machine synchronous belt is rotatably connected to the position, far away from the ground, of the door knife rocker 2. Door sword bottom plate 1 is close to layer door one side and is provided with tool arm subassembly 4, and tool arm subassembly 4 includes the tool arm 41 of two vertical settings, and two tool arms 41 are close to one side each other and are provided with the initiative rocker 42 and the driven rocker 43 that are parallel to each other, and initiative rocker 42 and driven rocker 43 both ends are all rotated and are connected in tool arm 41, and initiative rocker 42 and driven rocker 43 are by being close to opposite side sedan-chair door one end to keeping away from opposite side sedan-chair door one end downward sloping. The driving rocker 42 is connected with a third rotating shaft 421 in a rotating manner near the car door on the other side, the arc-shaped abdicating groove 11 is formed in the position of the door knife bottom plate 1 corresponding to the third rotating shaft 421, the arc-shaped circle center of the abdicating groove 11 coincides with the rotating circle center of the driving rocker 42, the third rotating shaft 421 passes through the abdicating groove 11, the third rotating shaft 421 is connected to the position of the door knife rocker 2 far away from the ground, and the third rotating shaft 421 can slide along the length direction of the abdicating groove 11 under the driving of the door knife rocker 2. When the sedan-chair door was opened, door sword rocker 2 drives third pivot 421 and rotates to keeping away from opposite side sedan-chair door direction along the groove 11 of stepping down, and third pivot 421 drives initiative rocker 42 and rotates to vertical direction, and initiative rocker 42 and the cooperation of driven rocker 43 move two vertical tool arms 41 to the direction of being close to each other, and two tool arms 41 are tight with the croquet of unblanking of layer door, and tool arm subassembly 4 opens layer door under the drive of door sword rocker 2.
Referring to fig. 1 and 3, door sword bottom plate 1 is close to door sword rocker 2 position department and is provided with gag lever post 3 that is used for locking door sword rocker 2, gag lever post 3 is by being close to opposite side sedan-chair door one end to keeping away from opposite side sedan-chair door one end downward sloping, gag lever post 3 is close to opposite side sedan-chair door one end and stretches out door sword bottom plate 1 setting, gag lever post 3 stretches out 1 one end of door sword bottom plate and rotates and be connected with and have elastic friction ball 31, friction ball 31 can be made by rubber or plastics, gag lever post 3 keeps away from opposite side sedan-chair door one end and rotates and connect in door sword bottom plate 1 and be close to ground position department, gag lever post 3 is close to ground position department fixedly connected with step flange 32. The step flange 32 is arranged along the length direction of the limiting rod 3, the first rotating shaft 22 is rotatably connected to the position, corresponding to the step flange 32, of the door vane rocker 2, and one end, close to the other side car door, of the step flange 32 can abut against the first rotating shaft 22. One end of the limiting rod 3, which is far away from the friction ball 31, is fixedly connected with a second reset spring 33, one end of the second reset spring 33, which is far away from the limiting rod 3, is fixedly connected to the door vane bottom plate 1, and the second reset spring 33 provides a force for rotating the limiting rod 3, which is far away from one end of the second reset spring 33, to the first rotating shaft 22. When the car door opening door knife rocker 2 rotates towards the direction far away from the car door on the other side, the first rotating shaft 22 moves towards the direction far away from the step flange 32, the limiting rod 3 falls down under the action of self weight, and one end, close to the car door on the other side, of the step flange 32 abuts against the first rotating shaft 22; when the door knife rocker 2 drives the door knife bottom plate 1 to close the door, the step flange 32 of the limiting rod 3 limits the movement of the first rotating shaft 22, the door knife rocker 2 is fixed relative to the door knife bottom plate 1, and the door knife rocker 2 drags the car door to close under the action of the door machine synchronous belt; when the sedan-chair door is about to close, the gag lever post 3 stretches out 1 one end of door sword bottom plate and touches and set firmly the touch panel on the door machine, because the incline direction of gag lever post 3 self, gag lever post 3 stretches out one end and rotates to keeping away from first pivot 22 direction under the striking effect, and step flange 32 removes the restriction to first pivot 22, and door sword rocker 2 resumes free rotation. The friction ball 31 buffers the impact of the car door on the other side on the limiting rod 3, and the second return spring 33 enhances the downward movement trend of one end of the limiting rod 3 close to the friction ball 31, so that the limiting rod 3 can be reset in time to lock the door knife rocker 2.
Referring to fig. 1 and 3, the door vane bottom plate 1 is rotatably connected with a second rotating shaft 12 corresponding to one side of the limiting rod 3 away from the first rotating shaft 22, and the limiting rod 3 can abut against the position, close to the ground, of the second rotating shaft 12. The door knife rocker 2 is provided with an arc-shaped limiting groove 23 corresponding to the position of the second rotating shaft 12, the arc-shaped circle center of the limiting groove 23 is concentrically arranged with the rotation circle center of the door knife rocker 2, the second rotating shaft 12 is slidably connected to the limiting groove 23, the second rotating shaft 12 slides along the length direction of the limiting groove 23, and the second rotating shaft 12 can be abutted to the position of the door knife rocker 2 corresponding to the two ends of the limiting groove 23. The second rotating shaft 12 limits the rotation amplitude of the limiting rod 3, and reduces the probability that the limiting rod 3 rotates excessively under the action of impact force to impact other nearby structures when the limiting rod 3 is lifted; limiting groove 23 limits the rotation amplitude of door sword rocker 2 in the rotation process of door sword rocker 2, reduces door sword rocker 2 and rotates the probability that excessively causes other linkage structure function failures.
Referring to fig. 1 and 3, door sword rocker 2 is close to opposite side sedan-chair door position department and rotates and is connected with locking lever 5 of level setting, locking lever 5 stretches out door sword bottom plate 1 setting, locking lever 5 is kept away from door sword bottom plate 1 one end and is the hook-shaped setting, locking lever 5 fixedly connected with pressure spring 51, locking lever 5 one end fixed connection is kept away from in door sword bottom plate 1 to pressure spring 51 keeps away from ground one end, pressure spring 51 gives locking lever 5 projecting part to the power on ground, locking lever 5 corresponds third pivot 421 position departments and has seted up curved drive groove 52, the arc centre of a circle of drive groove 52 and the mutual eccentric settings in the centre of a circle of locking lever 5 rotation connection, third pivot 421 roll connection in drive groove 52, third pivot 421 can roll along drive groove 52 length direction. The arc waist groove 24 is arranged at the position, close to the lock rod 5, of the door knife rocker 2, the arc circle center of the arc waist groove 24 coincides with the rotation circle center of the lock rod 5, the lock rod 5 is fixedly connected with a first upright column 53 at the position, corresponding to the arc waist groove 24, of the lock rod 5, the first upright column 53 is connected to the arc waist groove 24 in a sliding mode, and the first upright column 53 slides along the length direction of the arc waist groove 24. When the car door is opened, the door knife rocker 2 rotates to a position far away from the car door on the other side, the driving groove 52 of the lock rod 5 is matched with the third rotating shaft 421, the lock rod 5 drives the third rotating shaft 421 to move towards the direction far away from the car door on the other side in the abdicating groove 11, the third rotating shaft 421 drives the knife arm 41 to contact with the unlocking door ball through the driving rocker 42, in the process, the elastic force of the pressure spring 51 enables the lock rod 5 to keep an approximately horizontal state, and the lock rod 5 moves towards the direction far away from the car door on the other side approximately horizontally under the driving of the door knife rocker 2 and the limitation of the pressure spring 51; when the two knife arms 41 contact the unlocking gate ball, the reaction force of the unlocking gate ball to the knife arms 41 limits the movement of the third rotating shaft 421, the gate knife rocker 2 continues to rotate, the gate knife rocker 2 drives the lock rod 5 to overcome the elasticity of the pressure spring 51 to lift upwards, and the car door is unlocked; the doorknob rocker 2 continues to rotate, the third rotating shaft 421 drives the two knife arms 41 to clamp the unlocking doorknob, and the two knife arms 41 unlock and open the landing door through the unlocking doorknob.
Referring to fig. 1 and 3, one end of the door vane bottom plate 1, which is far away from the ground, is provided with a sliding block 6, the sliding block 6 is provided with a sliding groove 61 which is horizontally arranged, the position of the sliding groove 61 corresponding to the door vane bottom plate 1 is fixedly connected with a second upright post 13, the second upright post 13 is slidably connected with the sliding groove 61, the sliding block 6 slides along the horizontal direction on the plane where the door vane bottom plate 1 is located relative to the second upright post 13, the sliding block 6 is close to the other side door position fixedly connected with a safety contact 62, the sliding block 6 is far away from one end of the other side door and is rotatably connected with one end, which is close to the door vane rocker 2, of the locking rod 5, one end, which is far away from the locking rod 5, of the compression spring 51 is fixedly connected with the sliding block 6, and the compression spring 51 is inclined downwards from one end of the other side door by being close to one end of the other side door. In the process of opening and closing the car door, the sliding block 6 is driven by the lock rod 5 to reciprocate in the plane where the door vane bottom plate 1 is located along the horizontal direction, when the car door is opened, the sliding block 6 moves in the direction of being far away from the car door on the other side, and when the car door is closed, the sliding block 6 moves in the direction of being close to the car door on the other side. The slide block 6 drives the safety contact 62 to reciprocate along with the opening and closing of the car door, and the elevator control system is helped to confirm whether the car door is closed or not.
Referring to fig. 1 and 4, door sword bottom plate 1 is close to locking lever 5 position department and is rotated and be connected with and stick up pole 7, sticks up pole 7 and keeps away from 1 one end of door sword bottom plate and can butt in locking lever 5 is close to ground one side, sticks up pole 7 and is close to 1 one end fixedly connected with stay cord 71 of door sword bottom plate, sticks up the first reset spring 72 of pole 7 fixedly connected with, and first reset spring 72 keeps away from and sticks up 7 one end fixed connection in door sword bottom plate 1, and stick up pole 7 and be the horizontality under the first reset spring 72 natural state. When the elevator accident stranded the passenger, usable stay cord 71 after the staff opens the layer door drives to stick up pole 7 and rotates, sticks up pole 7 and drives locking lever 5 and lift up and relieve the locking of sedan-chair door, sticks up pole 7 and is convenient for the staff manual unblock under the unexpected circumstances and rescues stranded personnel.
Referring to fig. 1 and 2, a spring guide frame 8 is rotatably connected to a position, corresponding to the position where the door knife rocker 2 is far away from the other side of the car door, of the door knife bottom plate 1, a spring guide rod 81 is slidably connected to the spring guide frame 8, the spring guide rod 81 slides along the length direction of the spring guide frame 8, one end, close to the door knife rocker 2, of the spring guide rod 81 is rotatably connected to a shifting fork shaft 811, the shifting fork shaft 811 is rotatably connected to a position, close to the spring guide frame 8, of the door knife rocker 2, a connecting position of the shifting fork shaft 811 and the door knife rocker 2 is located on a side, close to the ground, of a connecting line between a rotating circle center of the door knife rocker 2 and a rotating circle center of the spring guide frame 8, an elastic pulling piece 9 is arranged on the spring guide rod 81, the elastic pulling piece 9 is a pushing spring 91, one end of the pushing spring 91 is abutted to the position, close to the door knife rocker 2, of the spring guide rod 81, the other end of the spring guide frame 8 is abutted to the spring guide frame 8, and the pushing spring 91 applies a force to the spring guide rod 81 to keep away from the spring guide frame 8. When the door is opened, the door knife rocker 2 rotates in the direction far away from the car door on the other side under the traction of the door machine synchronous belt, the door knife rocker 2 drives the lock rod 5 to unlock the car door, and then the door knife rocker 2 drags the car door to open under the traction of the door machine synchronous belt; when closing the door, door sword rocker 2 is because can't rotate by the locking of spacing pole 3, and door sword rocker 2 drives the sedan-chair door and begins to close under the traction of door machine hold-in range, and when the sedan-chair door was about to close, the locking of door sword rocker 2 was removed by the triggering of opposite side sedan-chair door to spacing pole 3, and door sword rocker 2 rotates to opposite side sedan-chair door direction, and door sword rocker 2 drives two sedan-chair doors of locking lever 5 locking. In the process that the door knife rocker 2 rotates towards the car door on the other side, the elastic pulling and holding piece 9 keeps the door knife rocker 2 and the door knife bottom plate 1 pulled and held, the mechanical connection between the door knife rocker 2 and the door knife bottom plate 1 is enhanced, and the door knife rocker 2 is reduced to be in a free rotation state relative to the door knife bottom plate 1.
Referring to fig. 1 and 3, when the car doors are opened, the push spring 91 is inclined downwards from one end far away from the door knife rocker 2 to one end close to the door knife rocker 2, the extension line of the length direction of the push spring 91 is positioned below the rotating connection position of the door knife rocker 2 and the door knife bottom plate 1, along with the mutual approach of the two car doors to the limiting rod 3, the door knife rocker 2 is unlocked, the door knife rocker 2 rotates towards the car door on the other side under the driving of the synchronous belt of the gantry crane, the compressed degree of the push spring 91 is increased in the process, the door knife rocker 2 is used for driving the car doors to be closed and tightly closed by means of the push spring 91 in the rotating process, and the probability of secondary door closing caused by the car doors during the pause is reduced; along with the continuous rotation of the door knife rocker 2, the car door is closed and tightly closed, at the moment, the extension line of the length direction of the push spring 91 passes through the rotary connection part of the door knife rocker 2 and the door knife bottom plate 1, and the push spring 91 reaches the maximum compression amount; door sword rocker 2 continues to rotate to opposite side sedan-chair door direction, pushes away the extension line of spring 91 length direction and is located door sword rocker 2 and door sword bottom plate 1 and rotates the top of junction, pushes away spring 91 and weakens by the higher position state of compression degree, and the elasticity direction that pushes away spring 91 is unanimous with door sword rocker 2's rotation direction, pushes away spring 91 this moment and provides a continuous resistance and reduces the unexpected probability that reverses of door sword rocker 2, improves the security of elevator lift in-process sedan-chair door.
Referring to fig. 1 and 4, one end of the spring guide frame 8 close to the door knife rocker 2 is fixedly connected with a U-shaped shifting fork 82, the U-shaped shifting fork 82 is arranged along the length direction of the spring guide frame 8, a shifting fork shaft 811 is slidably connected with the U-shaped shifting fork 82, and the shifting fork shaft 811 slides along the length direction of the U-shaped shifting fork 82. The spring guide frame 8 and the spring guide rod 81 are mutually matched to limit the rotation and compression of the push spring 91, so that the stability of the motion state of the push spring 91 in the rotation process of the door knife rocker 2 is improved, and the probability of deflection and distortion of the push spring 91 in the compression process is reduced. The shifting fork shaft 811 is matched with the U-shaped shifting fork 82 to further stabilize the motion tracks of the spring guide rod 81 and the push spring 91, improve the motion stability of the push spring 91 in the rotation process of the door knife rocker 2 and prolong the service life of the system.
The implementation principle of the elevator synchronous door vane position holding device in the embodiment of the application is as follows: when the door is opened, the door knife rocker 2 rotates in the direction far away from the car door on the other side under the traction of the door machine synchronous belt, the door knife rocker 2 drives the lock rod 5 to rotate to unlock the car door, and then the door knife rocker 2 drags the car door to open under the traction of the door machine synchronous belt; when closing the door, door sword rocker 2 is because can't rotate by the locking of spacing pole 3, and door sword rocker 2 drives the sedan-chair door and begins to close under the traction of door machine hold-in range, and when the sedan-chair door was about to close, the locking of door sword rocker 2 was removed by the triggering of opposite side sedan-chair door to spacing pole 3, and door sword rocker 2 rotates to opposite side sedan-chair door direction, and door sword rocker 2 drives two sedan-chair doors of locking lever 5 locking. In the process that the door knife rocker 2 rotates towards the car door direction on the other side, the elastic pulling and holding piece 9 keeps the door knife rocker 2 and the door knife bottom plate 1 pulled and held, the mechanical connection between the door knife rocker 2 and the door knife bottom plate 1 is enhanced, and the condition that the door knife rocker 2 freely rotates relative to the door knife bottom plate 1 is reduced.
When the car doors are opened, the push spring 91 is inclined downwards from one end far away from the door knife rocker 2 to one end close to the door knife rocker 2, the extension line of the length direction of the push spring 91 is positioned below the rotating connection position of the door knife rocker 2 and the door knife bottom plate 1, along with the mutual approaching of the two car doors to the limiting rod 3, the door knife rocker 2 is unlocked, the door knife rocker 2 rotates towards the car door on the other side under the driving of the synchronous belt of the door machine, the compression degree of the push spring 91 is increased in the process, the car door is driven to be closed and tightly closed by the aid of the push spring 91 in the rotating process of the door knife rocker 2, and the probability of secondary door closing caused by car door pause is reduced; along with the continuous rotation of the door knife rocker 2, the car door is closed and tightly closed, at the moment, the extension line of the length direction of the push spring 91 passes through the rotary connection part of the door knife rocker 2 and the door knife bottom plate 1, and the push spring 91 reaches the maximum compression amount; door sword rocker 2 continues to rotate to opposite side sedan-chair door direction, pushes away the extension line of spring 91 length direction and is located door sword rocker 2 and door sword bottom plate 1 top of rotating the junction, pushes away spring 91 and weakens by the higher position state of compression degree, and the elasticity direction of pushing away spring 91 is unanimous with door sword rocker 2's rotation direction, pushes away spring 91 this moment and provides a continuous resistance and reduces the unexpected probability that reverses of door sword rocker 2, improves the security of elevator lift in-process sedan-chair door.
The embodiment of the application improves the condition that the door stops to cause the secondary to close the door when the door is closed and the door sword rocker 2 rotates the in-process sedan-chair door relative to the door sword bottom plate 1.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a synchronous door sword position keeping device of elevator, is including connecting door sword bottom plate (1) on sedan-chair door link plate, its characterized in that: one side of the door knife bottom plate (1) is rotatably connected with a door knife rocker (2), a limiting rod (3) for locking the door knife rocker (2) is arranged at the position, close to the door knife rocker (2), of the door knife bottom plate (1), an elastic pulling and holding piece (9) is arranged between the door knife rocker (2) and the door knife bottom plate (1), and the elastic pulling and holding piece (9) is used for keeping the door knife rocker (2) and the door knife bottom plate (1) pulled and held when the door knife rocker (2) rotates; the elastic pulling and holding piece (9) is a pushing spring (91), one end of the pushing spring (91) is connected to the position, far away from the car door on the other side, of the door knife rocker (2), the other end of the pushing spring (91) is connected to the position, far away from the car door on the other side, of the door knife bottom plate (1), and the connection position of the pushing spring (91) and the door knife rocker (2) is located on one side, close to the ground, of the connection line of the rotation circle center of the door knife rocker (2) and the rotation circle center of the pushing spring (91); door sword rocker (2) are corresponding to push away spring (91) position department and rotate and are connected with spring guide (81), push away spring (91) cover and locate spring guide (81), door sword bottom plate (1) is corresponding to spring guide (81) position department and rotates and is connected with spring guide (8), spring guide (81) sliding connection is in spring guide (8), spring guide (81) slide along self length direction, push away spring (91) one end butt and be close to door sword rocker (2) position department in spring guide (81), push away spring (91) other end butt in spring guide (8), push away spring (91) and keep away from the power of spring guide (8) for spring guide (81).
2. The elevator synchronous vane position maintaining device of claim 1, wherein: spring guide frame (8) are close to door sword rocker (2) one end fixedly connected with U type shift fork (82), U type shift fork (82) set up along spring guide frame (8) length direction, door sword rocker (2) correspond U type shift fork (82) position department and rotate and be connected with shift fork axle (811), shift fork axle (811) sliding connection in U type shift fork (82), shift fork axle (811) slide along U type shift fork (82) length direction, spring guide pole (81) are close to door sword rocker (2) one end and rotate and connect in shift fork axle (811).
3. The elevator synchronous vane position maintaining device according to claim 1, wherein: gag lever post (3) is by being close to opposite side sedan-chair door one end to keeping away from opposite side sedan-chair door one end downward sloping, gag lever post (3) are close to opposite side sedan-chair door one end and stretch out a sword bottom plate (1) setting, gag lever post (3) are kept away from opposite side sedan-chair door one end and are rotated and connect in a sword bottom plate (1) and be close to ground position department, gag lever post (3) are close to ground position department fixedly connected with step flange (32), gag lever post (32) set up along gag lever post (3) length direction, door sword rocker (2) correspond step flange (32) position department and rotate and are connected with first pivot (22), step flange (32) are close to opposite side sedan-chair door one end can butt in first pivot (22).
4. The elevator synchronous vane position maintaining device of claim 3, wherein: the side, away from the first rotating shaft (22), of the door vane bottom plate (1) corresponding to the limiting rod (3) is rotatably connected with a second rotating shaft (12), and the limiting rod (3) can abut against the position, close to the ground, of the second rotating shaft (12); curved spacing groove (23) have been seted up to door sword rocker (2) corresponding second pivot (12) position department, and the arc centre of a circle of spacing groove (23) sets up with the rotation centre of a circle of door sword rocker (2) is concentric, and second pivot (12) sliding connection is in spacing groove (23), and spacing groove (23) length direction slides is followed in second pivot (12), and second pivot (12) can the butt in door sword rocker (2) corresponding spacing groove (23) both ends position department.
5. The elevator synchronous vane position maintaining device according to claim 1, wherein: a cutter arm assembly (4) is arranged on one side, close to a landing door, of the door cutter bottom plate (1), the cutter arm assembly (4) comprises two vertically arranged cutter arms (41), a driving rocker (42) and a driven rocker (43) which are parallel to each other are arranged on one side, close to each other, of the two cutter arms (41), two ends of the driving rocker (42) and two ends of the driven rocker (43) are rotatably connected to the cutter arms (41), and the driving rocker (42) and the driven rocker (43) are both inclined downwards from one end, close to the other side of the car door, to one end, far away from the other side of the car door; the position, close to the car door, of the other side of the driving rocker (42) is rotatably connected with a third rotating shaft (421), the position, corresponding to the third rotating shaft (421), of the door knife bottom plate (1) is provided with an arc-shaped abdicating groove (11), the arc-shaped circle center of the abdicating groove (11) coincides with the rotating circle center of the driving rocker (42), the third rotating shaft (421) penetrates through the abdicating groove (11) and is arranged, and the third rotating shaft (421) is connected to the position, far away from the ground, of the door knife rocker (2).
6. The elevator synchronous vane position maintaining device according to claim 5, wherein: door sword rocker (2) are close to opposite side sedan-chair door position department and rotate locking lever (5) of being connected with the level setting, locking lever (5) stretch out door sword bottom plate (1) setting, locking lever (5) are kept away from door sword bottom plate (1) one end and are hooked setting, locking lever (5) are connected with pressure spring (51), locking lever (5) one end is kept away from in door sword bottom plate (1) pressure spring (51) and is connected in the one end of keeping away from ground, locking lever (5) extension is given to pressure spring (51) power to ground, curved drive groove (52) have been seted up in locking lever (5) correspondence third pivot (421) position department, the arc centre of a circle of drive groove (52) and the mutual eccentric settings of the centre of a circle of locking lever (5) rotation connection, third pivot (421) roll connection in drive groove (52), third pivot (421) can roll along drive groove (52) length direction.
7. The elevator synchronous vane position maintaining device of claim 6, wherein: door sword bottom plate (1) is kept away from ground one end sliding connection and is had slider (6), and slider (6) slide along the horizontal direction at door sword bottom plate (1) place plane, and slider (6) are close to opposite side sedan-chair door position department fixedly connected with safety contact (62), and slider (6) are kept away from opposite side sedan-chair door one end and are rotated and connect in locking lever (5) and be close to door sword rocker (2) one end, and locking lever (5) one end fixed connection is kept away from in slider (6) pressure spring (51).
8. The elevator synchronous vane position maintaining device of claim 6, wherein: door sword bottom plate (1) is close to locking lever (5) position department and rotates and be connected with stick up pole (7), stick up pole (7) and keep away from door sword bottom plate (1) one end and can butt in locking lever (5) and be close to ground one side, stick up pole (7) and be close to door sword bottom plate (1) one end fixedly connected with stay cord (71), stick up the first reset spring (72) of pole (7) fixedly connected with, stick up pole (7) one end fixed connection in door sword bottom plate (1) is kept away from in first reset spring (72), stick up pole (7) and be the horizontality under first reset spring (72) natural state.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841287A1 (en) * | 1996-11-07 | 1998-05-13 | Otis Elevator Company | Secondary guidance system for linear induction motor |
| WO2016119484A1 (en) * | 2015-01-30 | 2016-08-04 | 南通通洋机电制造有限公司 | Elevator synchronous door vane device with a retaining assembly |
| EP3256413A1 (en) * | 2015-02-13 | 2017-12-20 | Otis Elevator Company | Elevator synchronous door knife |
| CN212356167U (en) * | 2020-05-28 | 2021-01-15 | 上海贝思特门机有限公司 | Synchronous door sword of integrated sedan-chair lock of formula of expanding outward |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2730430B2 (en) * | 1992-10-06 | 1998-03-25 | 三菱電機株式会社 | Elevator car door equipment |
| JP2000128464A (en) * | 1998-10-27 | 2000-05-09 | Hitachi Ltd | Controller for elevator door |
| JP2007015787A (en) * | 2005-07-05 | 2007-01-25 | Toshiba Elevator Co Ltd | Elevator door device, door control device and door control method |
| CN103723605B (en) * | 2013-09-23 | 2015-08-26 | 西子奥的斯电梯有限公司 | The asynchronous door cutter of the integrated car door lock of a kind of elevator |
| CN105565126B (en) * | 2016-02-04 | 2017-11-24 | 杭州优迈科技有限公司 | A kind of integrated car door lock synchronous door knife and synchronous door knife system |
| CN110626927A (en) * | 2019-09-11 | 2019-12-31 | 杭州优迈科技有限公司 | Integrated car door lock synchronous door knife and door knife system |
| CN111470397B (en) * | 2020-05-28 | 2023-12-22 | 上海贝思特门机有限公司 | Synchronous door knife of integrated sedan-chair lock of interior clamp formula |
-
2021
- 2021-06-17 CN CN202110674556.9A patent/CN113291958B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841287A1 (en) * | 1996-11-07 | 1998-05-13 | Otis Elevator Company | Secondary guidance system for linear induction motor |
| WO2016119484A1 (en) * | 2015-01-30 | 2016-08-04 | 南通通洋机电制造有限公司 | Elevator synchronous door vane device with a retaining assembly |
| EP3256413A1 (en) * | 2015-02-13 | 2017-12-20 | Otis Elevator Company | Elevator synchronous door knife |
| CN212356167U (en) * | 2020-05-28 | 2021-01-15 | 上海贝思特门机有限公司 | Synchronous door sword of integrated sedan-chair lock of formula of expanding outward |
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