CN108439158B - Car door opening limiting device for elevator - Google Patents
Car door opening limiting device for elevator Download PDFInfo
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- CN108439158B CN108439158B CN201810324721.6A CN201810324721A CN108439158B CN 108439158 B CN108439158 B CN 108439158B CN 201810324721 A CN201810324721 A CN 201810324721A CN 108439158 B CN108439158 B CN 108439158B
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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
- B66B13/06—Door or gate operation of sliding doors
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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
- B66B13/30—Constructional features of doors or gates
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Abstract
The invention discloses a car door opening limiting device for an elevator.A fixed hook seat and a car door closing maintaining hook seat are fixed on a gantry crane frame; the door knife base arranged on the door machine hanging plate is provided with a kidney-shaped hole, the back of the door knife base is hinged with a rotating lock hook and a car door closing and keeping lock hook, a driving pin fixed on the rotating lock hook is positioned in the kidney-shaped hole, the rotating lock hook is matched with a fixed hook seat, and the car door closing and keeping lock hook is matched with a car door closing and keeping hook seat; the first connecting rod and the second connecting rod which are hinged on the door vane base are hinged with the two door vanes together, and the first connecting rod is provided with a pin shaft hole; the driving plate hinged on the door vane base is provided with two pin shafts, the second pin shaft is positioned in a pin shaft hole of the first connecting rod and is connected with the car door closing and keeping lock hook through a spring, the diameter of the pin shaft hole is larger than that of the second pin shaft, and the first pin shaft is connected with a door vane belt. According to the invention, an additional trigger mechanism is not required to be added at the landing side, and the parallelogram structure formed by the door knife and the connecting rod can unlock the landing door lock and the car door opening limiting device.
Description
Technical Field
The invention relates to vertical lifting elevator equipment, in particular to a car door opening limiting device for an elevator.
Background
As a special transportation tool, an elevator plays an increasingly important role in life and work of people, and the general use of the elevator brings great convenience to people, and meanwhile, the safety performance of the elevator is concerned more and more.
According to the statistical data, the accidents caused by door system faults and maintenance operation faults in the elevator accidents account for 80 percent of all the accidents of the elevator. As a key part of an elevator, the car door opening limiting device can avoid unreasonable escape behaviors when passengers in an elevator car are trapped in a non-unlocking area when the elevator breaks down or stops due to non-elevator reasons, so that the normative and the reliability of the car door opening limiting device are important for the safe operation of the elevator.
According to the requirement of a No. 1 amendment list of GB7588-2003, the car door opening limiting device needs to meet the following basic action requirements:
1) the car door opening limiting device does not influence the normal door opening and closing of the door machine;
2) when emergency rescue is needed, if the lift car is in an unlocking area, personnel in the lift car can open the lift car door; if the car is in a non-unlocking area, personnel in the car can not open the car door;
3) when emergency rescue is needed, if the car is in an unlocking area or a UCM (car accidental movement) braking area, people at the landing side can open the car door from the landing side (without tools or by using a triangular key or tools permanently arranged on the spot).
In order to meet the above requirements, many elevator enterprises have been researching and developing door openers for car doors in recent years. For example, an invention patent publication No. CN102015510B discloses a car door locking apparatus for an elevator, which includes: a car switch fixed to the door suspension device; a car fixing latch fixed to the car or the bracket (fixed to the car); a car arm fixed to a side-opening door of the car via a first car shaft, the car arm being pressed by a landing vane fixed to the side-opening door of the landing and rotating about the first car shaft when the side-opening door of the car is opened; and a car movable latch fixed to the door suspension device via the second car shaft, wherein the car movable latch is configured to disable operation of the car by interrupting electrical conduction between the car movable latch and the switch based on rotation of the car movable latch about the second car shaft caused by rotation of the car arm, and to unlock the car movable latch and the car fixed latch. Although the invention patent can achieve the purpose of limiting the opening of the car door by the personnel in the car, an unlocking device is additionally arranged at the landing side, and a car door opening limiting device is additionally arranged at the door machine side.
The invention discloses an elevator synchronous door vane car door lock device disclosed in the invention patent application with the publication number of CN104555673A, which comprises a door vane assembly arranged on an active door hanging plate, an auxiliary lock fixed on a passive door hanging plate and a contact body mounting plate fixed on a lower bottom plate of a door machine, wherein the door vane assembly comprises a lock hook in linkage fit with the auxiliary lock and the contact body mounting plate, the door vane assembly comprises a bottom plate, an active connecting rod and a passive connecting rod, the middles of the active connecting rod and the passive connecting rod are hinged on the bottom plate, a micro-motion blade and a movable blade are hinged between the active connecting rod and the passive connecting rod to form a parallelogram structure, the micro-motion blade is connected with the lock hook through a transmission mechanism, the active connecting rod is connected with a door machine transmission part, and the door vane assembly is matched with a door ball. The initiative connecting rod directly articulates with the movable blade in aforementioned structure, rotationally articulates with the fine motion blade, though can be in the regional purpose of realizing pinning the sedan-chair door of unblanking, personnel in the car nevertheless can't open the door system and realize saving oneself through the mode of opening the sedan-chair door in the district of unblanking because initiative connecting rod and movable blade are directly articulated.
Disclosure of Invention
The invention aims to solve the technical problem of providing a car door opening limiting device for an elevator, which does not need to additionally increase a trigger mechanism at a landing side, not only ensures that personnel in a car can save themselves when the car is in an unlocking area, but also ensures that the car door cannot be opened in a non-unlocking area.
In order to solve the above technical problems, the present invention provides a car door opening restriction device for an elevator, comprising:
a fixed hook seat fixed on the gantry crane frame and a car door closing maintaining hook seat;
the door knife base is installed on a door machine hanging plate, a waist-shaped hole is formed in the door knife base, a rotating lock hook and a car door closing and keeping lock hook are hinged to the back of the door knife base, a driving pin is fixedly installed on the rotating lock hook and located in the waist-shaped hole, when a car door of an elevator is in a closed state, the rotating lock hook is meshed with a fixed hook seat, and the car door closing and keeping lock hook is meshed with a car door closing and keeping hook seat;
the first connecting rod is hinged to the door vane base through a first rotating shaft, the second connecting rod is hinged to the door vane base through a second rotating shaft, the first door vane and the second door vane are hinged to the first connecting rod and the second connecting rod together, the first connecting rod, the second connecting rod, the first door vane and the second door vane form a parallelogram structure together, and an unlocking stay rope is fixedly installed on the first connecting rod and a pin shaft hole is formed in the first connecting rod;
the driving plate is rotatably installed on the first rotating shaft, a first pin shaft and a second pin shaft are installed on the driving plate, the second pin shaft is located in a pin shaft hole of the first connecting rod and connected with the car door closing and retaining lock hook through a spring, the diameter of the pin shaft hole is larger than that of the second pin shaft, and the first pin shaft is connected with a door engine belt.
In the device, two limiting columns are fixed on the door vane base and are respectively positioned at two sides of the first connecting rod.
In the above device, when the rotating latch hook and the fixed hook seat are in an occluded state, a gap is formed between the rotating latch hook and the fixed hook seat.
In the device, a slot is formed on the side surface of the first connecting rod, and the slot pushes the driving pin in the rotation process of the first connecting rod.
In the device, a rubber ring is fixedly arranged in the middle of the driving pin, and the rubber ring is positioned in the waist-shaped hole; and a bearing is fixedly installed at the front end of the driving pin and matched with the groove of the first connecting rod.
In the device, when a car of the elevator is in an unlocking area and the first door vane and the second door vane are in a retracted state, the two layer door balls are respectively positioned at two sides of the first door vane and the second door vane and have gaps; when the elevator car is in a non-unlocking area or a UCM braking area, the landing door ball is positioned above or below the first door vane and the second door vane.
In the device, the upper part of the first connecting rod and the upper part of the second connecting rod are respectively hinged with the second door vane through pin shafts, and the lower part of the first connecting rod and the lower part of the second connecting rod are respectively hinged with the first door vane through pin shafts.
In the device, the first pin shaft is positioned at the top of the drive plate, the second pin shaft is positioned below the first pin shaft, and the lower end of the drive plate is arranged on the first rotating shaft.
In the device, the car door closing and maintaining hook seat comprises a base, a spring and a lock hook, wherein the lock hook is hinged on the base, one end of the spring is fixed on the base, and the other end of the spring is fixed on the lock hook. Furthermore, the car door closing and retaining hook is matched with the hook of the car door closing and retaining hook seat, the occlusion contact surface of the car door closing and retaining hook seat is a slope surface, and the occlusion force of the car door closing and retaining hook seat is controlled by a spring of the car door closing and retaining hook seat.
Compared with the prior art, the invention has the beneficial effects that:
1) the landing device does not need to add an additional trigger mechanism at the landing side, has a simple structure and reduces the cost;
2) according to the invention, due to the design of indirect connection among the door knife, the connecting rod and the driving plate, the door knife and the connecting rod form a parallelogram structure, so that the door lock of the landing door can be unlocked, and the door opening limiting device of the car door can be unlocked;
3) the invention is convenient to install and maintain, and reduces the failure probability in the using process.
Drawings
Fig. 1 is a schematic view of the present invention mounted on an elevator door motor;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is an enlarged upper view of the present invention with the drive plate shown;
FIG. 5 is an enlarged upper view of the present invention with the drive plate not shown;
figure 6 is a schematic view of the car door closure retention hook base of the present invention.
Wherein the reference numbers are as follows:
1 is a door knife base; 2 is a first rotating shaft; 3 is a driving plate; 4 is a second rotating shaft; 5 is a rotating lock hook; 6, a car door closing and retaining latch hook; 7 is a limit column; 8 is a driving pin; 9 is an unlocking pull rope; 10 is a gantry crane frame; 11 is a fixed hook seat; 12 is a car door closing and maintaining hook seat; 121 is a base; 122 is a spring; 123 is a latch hook; 13 is a motor of the gantry crane; 14 is a belt of a gantry crane; 15 is a slot; 16 is a gantry crane hanging plate; 17 is a layer gate ball; 18 is a pin shaft hole; 19 is a first pin shaft; 20 is a second pin shaft; 21 is a first connecting rod; 22 is a second connecting rod; 23 is a waist-shaped hole; 24 is a rubber ring; 25 is a bearing; 41 is a first door vane; and 42 is a second vane.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention discloses a car door opening limiting device for an elevator, which comprises a fixed hook seat 11, a car door closing keeping hook seat 12, a door vane base 1, a first connecting rod 21, a second connecting rod 22, a driving plate 3, a rotating lock hook 5, a car door closing keeping lock hook 6, a limiting column 7, a driving pin 8, an unlocking pull rope 9, a first door vane 41 and a second door vane 42.
The fixed hook seat 11 and the car door closing maintaining hook seat 12 are fixedly installed on the gantry crane frame 10, wherein the fixed hook seat 11 is matched with the rotating lock hook 5, and the car door closing maintaining hook seat 12 is matched with the car door closing maintaining lock hook 6.
As shown in fig. 6, the car door closing and holding hook base 12 includes a base 121, a spring 122 and a hook 123, the hook 123 is hinged to the base 121, one end of the spring 122 is fixed to the base 121, and the other end is fixed to the hook 123. The car door closing holding hook 6 is matched with the hook 123 of the car door closing holding hook seat 12, the meshing contact surface of the car door closing holding hook 6 and the hook 123 is a slope surface, and the meshing force of the car door closing holding hook seat and the hook is controlled by the spring 122 of the car door closing holding hook seat 12.
The door vane base 1 is installed on a door machine hanging plate 16, the rotating lock hook 5 and the car door closing and keeping lock hook 6 are both hinged to the back of the door vane base 1, and as shown in fig. 2, the car door closing and keeping lock hook 6 is located above the rotating lock hook 5.
As shown in fig. 1, a driving pin 8 is fixedly mounted on the rotating latch hook 5, correspondingly, a kidney-shaped hole 23 is formed in the door vane base 1, and the driving pin 8 is located in the kidney-shaped hole 23. Specifically, as shown in fig. 3, the rear end of the rotational lock hook 5 is rotatably mounted on a rotating shaft mounted on a bracket fixed to the vane base 1 by a fastener.
As shown in fig. 3, the first connecting rod 21 is hinged to the door vane base 1 through the first rotating shaft 2, and the second connecting rod 22 is hinged to the door vane base 1 through the second rotating shaft 4, wherein the unlocking pull rope 9 is fixedly mounted on the first connecting rod 21 and a pin shaft hole 18 is formed.
As shown in fig. 1, the first connecting rod 21 and the second connecting rod 22 are hinged to a first vane 41 and a second vane 42, the first connecting rod 21 is located above the second connecting rod 22, and the first connecting rod 21, the second connecting rod 22, the first vane 41 and the second vane 42 form a parallelogram structure together. Specifically, as shown in fig. 1, 3 and 4, the upper portion of the first connecting rod 21 and the upper portion of the second connecting rod 22 are respectively hinged to the second vane 42 through a pin, the lower portion of the first connecting rod 21 and the lower portion of the second connecting rod 22 are respectively hinged to the first vane 41 through a pin, and both the first connecting rod 21 and the second connecting rod 22 are in a "\".
The lower end of the driving plate 3 is rotatably mounted on the first rotating shaft 2, and the upper end of the driving plate 3 is mounted with a first pin 19, and the first pin 19 is connected with the door belt 14. Specifically, a T-shaped block is fixedly mounted on the belt 14 of the gantry crane, a bearing hole is formed in the T-shaped block, a sliding bearing is mounted in the bearing hole, and the first pin 19 is inserted in the sliding bearing and driven by the belt 14 of the gantry crane. Meanwhile, the driving plate 3 is further provided with a second pin shaft 20 below the first pin shaft 19, the second pin shaft 20 is located in the pin shaft hole 18 of the first connecting rod 21, the second pin shaft 20 is connected with the door closure holding latch hook 6 through a spring, and the diameter of the pin shaft hole 18 is larger than that of the second pin shaft 20, as shown in fig. 3 and 5.
The first connecting rod 21 and the driving plate 3 are linked through the second pin shaft 20 and the pin shaft hole 18, the first connecting rod 21 can rotate along with the driving plate 3, and under the condition that the driving plate 3 is kept immovable, the second pin shaft 20 can swing relatively in the pin shaft hole 18 together with a parallelogram structure formed by the first connecting rod 21, the second connecting rod 22, the first door knife 41 and the second door knife 42.
Two limiting columns 7 are fixed on the door vane base 1, and the two limiting columns 7 are respectively positioned at two sides of the first connecting rod 21.
As shown in fig. 3 and 5, a rubber ring 24 is fixedly installed at the middle position of the driving pin 8, and the rubber ring 24 passes through and is located in the kidney-shaped hole 23, so that the rotation angle of the rotation locking hook 5 can be controlled, and the impact noise can be reduced. In addition, a bearing 25 is fixedly installed at the front end of the driving pin 8, a slot 15 is formed on the side surface of the first connecting rod 21, the bearing 25 is matched with the slot of the first connecting rod 21, and the left side surface or the bottom surface of the slot 15 pushes the driving pin 8 to lift the rotating lock hook 5 during the rotation of the first connecting rod 21.
As shown in fig. 2, when the door of the elevator is in a normally closed state, the rotating hook 5 and the fixed hook base 11 are in an engaged state, and a gap exists between the rotating hook 5 and the fixed hook base 11 in a horizontal direction (i.e., in the engaged state, the door can be opened by a certain distance), the door closure holding hook 6 and the hook 123 of the door closure holding hook base 12 are also in the engaged state, and the engaging contact surface of the two is a slope surface, and the engaging force between the door closure holding hook 6 and the hook 123 is controlled by a spring, which is usually 50N-150N.
In a door motor system of an elevator, a door motor 13 outputs torque to drive a door motor belt 14 to horizontally move, and the door motor belt 14 drives a drive plate 3 to rotate through a first pin shaft 19, so that the first door knife 41 and the second door knife 42 are folded and unfolded, and the lock hook 5 and the car door are closed to keep the lock hook 6 to be occluded and unlocked.
In the door machine system, when the car of the elevator is in an unlocking area and the first door vane 41 and the second door vane 42 are in a retracted state, the first door vane 41 and the second door vane 42 are positioned between two landing door balls 17 and a gap is formed between the landing door ball 17 and the door vanes; when the car of the elevator is in the non-unlocking zone or UCM braking zone, the landing door ball 17 is positioned above or below the first and second vanes 41 and 42.
The door opening limiting device of the invention has the following action process in the operation of a door machine system:
1) normal open and close door for flat floor
As shown in fig. 2, 3 and 4, when the door is normally closed in place, the first door vane 41 and the second door vane 42 are kept retracted, the rotating lock hook 5 is engaged with the fixed hook base 11, and the door closure holding lock hook 6 is engaged with the lock hook 123 of the door closure holding hook base 12. At this time, the right side of the pin hole 18 of the first connecting rod 21 is in contact with the right side of the second pin 20 of the drive plate 3 due to the influence of gravity, and since the diameter of the pin hole 18 is larger than the diameter of the second pin 20, there is a gap between the left side of the pin hole 18 and the left side of the second pin 20.
When the door machine normally opens the door, the car door is influenced by frictional resistance and temporarily remains motionless, the belt 14 of the door machine drives the driving plate 3 to rotate anticlockwise through the first pin shaft 19, and the first connecting rod 21 and the second connecting rod 22 also rotate anticlockwise under the influence of gravity until the first connecting rod 21 is blocked by the left limiting column 7 and cannot rotate continuously. In the process that the driving plate 3 and the first connecting rod 21 rotate anticlockwise and the first connecting rod 21 is not blocked by the left limiting column 7, the first door vane 41 and the second door vane 42 are gradually opened and prop open the landing door ball 17 to unlock the landing door lock, the car door closing and maintaining lock hook 6 is disengaged from the lock hook 123 of the car door closing and maintaining hook seat 12 under the driving of the driving plate 3 and the spring to unlock, and the bottom surface of the slot 15 of the first connecting rod 21 contacts the driving pin 8 to lift the rotating lock hook 5 to unlock. Then, the drive plate 3 continues to rotate counterclockwise until the left side of the pin hole 18 contacts the left side of the second pin shaft 20 with zero left-side gap. Next, the door operator belt 14 continues to pull and the door system opens normally.
2) The sedan-chair door is closed, and the car is located the region of unblanking, and personnel save oneself in the car
When the elevator stops due to the reasons of failure and the like and the elevator car stops in an unlocking area, a person in the elevator car pulls open the car door, the car door closing and maintaining lock hook 6 in an engaged state and the lock hook 123 of the car door closing and maintaining hook seat 12 are pulled open, then the car door opening limiting device moves leftwards along with the car door, at the beginning of the process, the landing door is kept still, the second door vane 42 on the left side contacts the landing door ball 17 on the left side to unlock the landing door lock, and the landing door is kept still due to the influence of self-closing force and frictional resistance of the landing door. The car door continues to be opened, the gate ball 17 on the left side obstructs and pushes the quadrilateral structure formed by the door vane and the connecting rod to rotate clockwise in turn until the gap between the pin shaft hole 18 of the first connecting rod 21 and the left side of the second pin shaft 20 of the driving plate 3 is zero, and in the process, the left side surface of the groove 15 of the first connecting rod 21 is in contact with the driving pin 8, and the rotating lock hook 5 is gradually lifted to realize unlocking. When people continue to take off the car door in the car, the door system is opened, and passengers self-rescue and leave the car.
3) The car door is closed, the car is positioned in a non-unlocking area, and people in the car can not open the car door
When the elevator is stopped due to the reasons of failure and the like and the elevator car is stopped in a non-unlocking area, a person in the elevator car pulls open the elevator car door, the elevator car door opening limiting device is opened along with the elevator car door, in the process, firstly, the elevator car door closing and maintaining lock hook 6 in the meshing state and the lock hook 123 of the elevator car door closing and maintaining hook seat 12 are pulled open, but the layer door ball 17 is positioned above or below the first door knife 41 and the second door knife 42, so that the first door knife 41 and the second door knife 42 cannot contact the layer door ball 17 or other parts of the layer door lock, the quadrilateral structure formed by the door knives and the connecting rod does not rotate, the rotating lock hook 5 and the fixed hook seat 11 maintain the meshing state until the gap between the first door knife 41 and the second door knife 42 is zero, the elevator car door can only open the gap within 50mm under the normal condition, and cannot be further opened, and the safety of passengers is ensured.
4) The car door is closed, the car is positioned in the unlocking area, and the personnel at the side of the landing are rescued
When the elevator is stopped due to reasons such as failure and the car stops in an unlocking area, a person on a landing side unlocks a landing door lock and opens a landing door by a special tool such as a triangular key, in the process, a right landing door ball 17 of the landing door lock contacts a right first door vane 41, the car door is temporarily kept still as the car door closing and keeping lock hook 6 is meshed with the lock hook of the car door closing and keeping hook seat 12 under the action of a spring 122, the right landing door ball 17 pushes the first door vane 41 to rotate clockwise until a gap between a pin shaft hole 18 of a first connecting rod 21 and a left side of a second pin shaft 20 of a driving plate 3 is zero, and meanwhile, the left side surface of a groove 15 of the first connecting rod 21 contacts a driving pin 8 to lift the rotating lock hook 5 to unlock. When people in the car continue to take off the car door, the door system is opened, and the rescue passenger leaves the car.
5) The car door is closed, the car is positioned in a UCM braking area, and people at the landing side are rescued
When the elevator is stopped due to the reasons of failure and the like and the elevator car stops in a UCM braking area, landing personnel unlock the landing door lock and open the landing door through special tools such as a triangular key, and at the moment, the landing door ball 17 is positioned above or below the quadrilateral structure formed by the door vane and the connecting rod, so the landing door cannot drive the elevator car door to be opened together. At this time, the rescue worker can pull the unlocking pull rope 9 to enable the first connecting rod 21 to rotate clockwise until the gap between the pin shaft hole 18 of the first connecting rod 21 and the left side of the second pin shaft 20 of the drive plate 3 is zero, and meanwhile, the left side surface of the groove 15 of the first connecting rod 21 is in contact with the driving pin 8, so that the rotating lock hook 5 is lifted to unlock, and meanwhile, the car door is opened to achieve the rescue purpose.
The landing device does not need to add an additional trigger mechanism at the landing side, has a simple structure and reduces the cost; the design of indirect connection among the middle door knife, the connecting rod and the driving plate ensures that a parallelogram structure formed by the door knife and the connecting rod can not only realize unlocking of a door lock of a landing door, but also unlock a door opening limiting device of a car door; the installation and maintenance are convenient, and the failure probability in the use process is reduced.
The present invention has been described in detail with reference to the specific embodiments, which are only the preferred embodiments of the present invention and are not intended to limit the present invention. Equivalent alterations and modifications made by those skilled in the art without departing from the principle of the invention should be considered to be within the technical scope of the invention.
Claims (10)
1. The utility model provides a sedan-chair door limiting device that opens door for elevator which characterized in that includes:
a fixed hook seat (11) fixed on the gantry crane frame (10) and a car door closing maintaining hook seat (12);
the door vane base (1) is installed on a door machine hanging plate (16), a waist-shaped hole (23) is formed in the door vane base (1), a rotating lock hook (5) and a car door closing maintaining lock hook (6) are hinged to the back face of the door vane base (1), a driving pin (8) is fixedly installed on the rotating lock hook (5), the driving pin (8) is located in the waist-shaped hole (23), when a car door of an elevator is in a closed state, the rotating lock hook (5) is meshed with a fixed hook seat (11), and the car door closing maintaining lock hook (6) is meshed with a car door closing maintaining hook seat (12);
the door knife comprises a door knife base (1), a first connecting rod (21) and a second connecting rod (22), wherein the first connecting rod (21) is hinged to the door knife base (1) through a first rotating shaft (2), the second connecting rod (22) is hinged to the door knife base (1) through a second rotating shaft (4), the first connecting rod (21) and the second connecting rod (22) are hinged to a first door knife (41) and a second door knife (42) together, the first connecting rod (21), the second connecting rod (22), the first door knife (41) and the second door knife (42) form a parallelogram structure together, an unlocking pull rope (9) is fixedly installed on the first connecting rod (21) and a pin shaft hole (18) is formed in the first connecting rod (21), a slot (15) is formed in the side face of the first connecting rod (21), and the slot (15) pushes a driving pin (8) in the rotating process of;
the driving plate (3) is rotatably installed on the first rotating shaft (2), a first pin shaft (19) and a second pin shaft (20) are installed on the driving plate (3), the second pin shaft (20) is located in a pin shaft hole (18) of a first connecting rod (21) and connected with the car door closed holding lock hook (6) through a spring, the diameter of the pin shaft hole (18) is larger than that of the second pin shaft (20), and the first pin shaft (19) is connected with a door engine belt (14).
2. The car door opening limiting device for the elevator as claimed in claim 1, wherein two limiting posts (7) are fixed on the door vane base (1), and the two limiting posts (7) are respectively located at two sides of the first connecting rod (21).
3. The door opening restriction device for an elevator according to claim 1, wherein the rotating hook (5) and the fixed hook base (11) have a gap therebetween in the engaged state.
4. The elevator car door opening limiting device according to claim 1, wherein a rubber ring (24) is fixedly mounted in the middle of the driving pin (8), and the rubber ring (24) is positioned in the kidney-shaped hole (23); the front end of the driving pin (8) is fixedly provided with a bearing (25), and the bearing (25) is matched with the groove (15) of the first connecting rod (21).
5. The door opening limiting device for the elevator car door according to claim 1, wherein when the car of the elevator is in an unlocking area and the first door vane (41) and the second door vane (42) are in a retracted state, the two landing door balls (17) are respectively positioned on two sides of the first door vane (41) and the second door vane (42) and have a gap; when the elevator car is in a non-unlocking area or a UCM braking area, the landing door ball (17) is positioned above or below the first door vane (41) and the second door vane (42).
6. The door opening restriction device for the elevator car according to claim 1, wherein the upper portion of the first connection rod (21) and the upper portion of the second connection rod (22) are respectively hinged to the second door vane (42) by a pin, and the lower portions of the first connection rod (21) and the second connection rod (22) are respectively hinged to the first door vane (41) by a pin.
7. The door opening restriction device for the elevator car according to claim 1, wherein the first pin (19) is located at the top of the driving plate (3), the second pin (20) is located below the first pin (19), and the lower end of the driving plate (3) is mounted on the first rotating shaft (2).
8. The door opening limiting device for the elevator car according to claim 1, wherein the door closing holding hook base (12) comprises a base (121), a spring (122) and a locking hook (123), the locking hook (123) is hinged to the base (121), one end of the spring (122) is fixed to the base (121), and the other end of the spring is fixed to the locking hook (123).
9. The door opening restriction device for elevators according to claim 8, wherein the door closing holding hook (6) and the hook (123) of the door closing holding hook base (12) are engaged with each other with a slope surface, and an engaging force of the door closing holding hook base and the hook is controlled by a spring (122) of the door closing holding hook base (12).
10. The car door opening limiting device for the elevator as claimed in claim 1, wherein a T-shaped block is fixedly installed on the belt (14) of the door machine, a bearing hole is formed in the T-shaped block, a sliding bearing is installed in the bearing hole, and the first pin shaft (19) is inserted in the sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810324721.6A CN108439158B (en) | 2018-04-12 | 2018-04-12 | Car door opening limiting device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810324721.6A CN108439158B (en) | 2018-04-12 | 2018-04-12 | Car door opening limiting device for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108439158A CN108439158A (en) | 2018-08-24 |
| CN108439158B true CN108439158B (en) | 2020-06-19 |
Family
ID=63199667
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810324721.6A Active CN108439158B (en) | 2018-04-12 | 2018-04-12 | Car door opening limiting device for elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109441248B (en) * | 2018-11-28 | 2024-04-05 | 苏州市职业大学 | Split type single-unlocking door lock of elevator |
| CN111498652A (en) * | 2020-05-30 | 2020-08-07 | 慈溪市宏峰电梯配件有限公司 | Car door lock for elevator |
| CN113682933B (en) * | 2021-08-13 | 2023-04-07 | 日立电梯（中国）有限公司 | Elevator car door up-down locking device |
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| CN201864431U (en) * | 2010-11-30 | 2011-06-15 | 上海贝思特门机有限公司 | Integrated cage door lock and door cutter device of elevator |
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| CN206562251U (en) * | 2017-02-15 | 2017-10-17 | 浙江奥力迅电梯部件有限公司 | A kind of integral type synchronous door knife |
| CN206693788U (en) * | 2017-04-05 | 2017-12-01 | 上海贝思特门机有限公司 | A kind of elevator is anti-to be taken off gate and locks a door knife |
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| EP0668235A1 (en) * | 1994-02-21 | 1995-08-23 | Inventio Ag | Feeding and unlocking system for lift doors |
| CN201864431U (en) * | 2010-11-30 | 2011-06-15 | 上海贝思特门机有限公司 | Integrated cage door lock and door cutter device of elevator |
| CN103231974A (en) * | 2013-05-17 | 2013-08-07 | 快意电梯股份有限公司 | Elevator car door lock device and working method thereof |
| CN205222393U (en) * | 2015-12-15 | 2016-05-11 | 上海贝思特门机有限公司 | Elevator sedan -chair threshold position door sword device |
| CN206562251U (en) * | 2017-02-15 | 2017-10-17 | 浙江奥力迅电梯部件有限公司 | A kind of integral type synchronous door knife |
| CN206693788U (en) * | 2017-04-05 | 2017-12-01 | 上海贝思特门机有限公司 | A kind of elevator is anti-to be taken off gate and locks a door knife |
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| CN108439158A (en) | 2018-08-24 |
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