CN-121990447-A - Tying device and operation method thereof

CN121990447ACN 121990447 ACN121990447 ACN 121990447ACN-121990447-A

Abstract

The invention discloses a tying device and an operation method thereof, wherein a first door knife is arranged on a base through a first swinging mechanism, a second door knife is arranged on the base through a second swinging mechanism, a reset adjusting mechanism and a car door lock hook are also arranged on the base, the car door lock hook is provided with a vertical bar and a roller, the base can be arranged on a car, the first door knife is provided with an unlocking ejector rod, the second door knife is provided with an unlocking pull rod, the first door knife keeps a set initial state through the first swinging mechanism and the reset adjusting mechanism, the unlocking ejector rod keeps a set interval to face a roller or contact the roller tangentially in the initial state, a set interval or directly contacts the first door knife and the second door knife in a propping mode in a state that the car door is closed and the car door lock hook is connected with a lock hook seat, the unlocking pull rod keeps a first poking interval with the vertical bar, and the first door knife and the second door knife can be positioned between two rollers of a layer door lock device. The invention can cope with the situation that the two rollers of the landing door lock device are arranged in a small tying size, and can realize the normal door opening of rescue outside a hall.

Inventors

MO ZHENFENG
MIAO LIMEI
HUANG MINDONG

Assignees

日立电梯（中国）有限公司

Dates

Publication Date: 20260508
Application Date: 20241105

Claims (10)

1. The tying device is characterized by comprising a base, a first door knife, a first swinging mechanism, a second door knife, a second swinging mechanism, a reset adjusting mechanism and a car door lock hook; The first door knife is arranged on the base through the first swinging mechanism; The reset adjusting mechanism is directly or indirectly arranged on the base and is positioned on the first side of the first door knife; The second door knife is arranged on the base through the second swinging mechanism; The car door lock hook is rotatably arranged on the base and positioned at the second side of the first door knife, and is used for being timely connected with a lock hook seat indirectly or directly arranged on the car; the base can be arranged on the car; the first door knife is provided with an unlocking ejector rod, and the second door knife is provided with an unlocking pull rod; The first door knife keeps a set initial state through the first swinging mechanism and the reset adjusting mechanism, and in the initial state, the unlocking ejector rod keeps a set interval to face the roller or tangentially contact the roller; In a state that the car door is closed and the car door lock hook is connected with the lock hook seat, a set gap or direct abutting contact is kept between the first door knife and the second door knife, and the unlocking pull rod and the vertical bar keep a set first poking distance; When the tie device is mated with the landing door lock device, the first vane and the second vane can be positioned between the two rollers of the landing door lock device.
2. The tying device according to claim 1, wherein a sliding groove is formed in the base, the second swing mechanism comprises a first swing arm assembly, a first set position of the second door cutter is connected with the base through the first swing arm assembly, the first swing arm assembly is provided with a limiting shaft, and the limiting shaft is connected with the sliding groove.
3. The fastening device according to claim 2, wherein a limiting block is arranged at the second end of the chute, and the limiting shaft can move along the chute and can abut against the limiting block after moving.
4. The hitch apparatus of claim 1, wherein the first swing mechanism comprises at least one set of third swing arm assemblies, the set position of the first door knife being coupled to the base via the third swing arm assemblies.
5. The fastening device according to claim 1, wherein the first door knife is provided with a limiting bent plate, a first limiting component is arranged at a set position of the base and is positioned on a second side of the first door knife, and the first door knife can be abutted with the first limiting component through the limiting bent plate after swinging towards the second side.
6. The tying device according to claim 1, wherein the reset adjusting mechanism comprises a push rod, a spring, a front baffle and a rear baffle, the front baffle and the rear baffle are arranged on the base and are positioned on the first side of the first door knife, the front baffle and the rear baffle are arranged at a set interval, through holes are respectively formed in the front baffle and the rear baffle, the push rod movably penetrates through the two through holes, the spring is sleeved on the rear section of the push rod, the spring is positioned between the rear baffle and the front baffle, one end of the spring is connected with the rear baffle, and the other end of the spring is connected with the push rod.
7. The fastening device according to claim 6, wherein the spring is a compression spring, an initial state of the compression spring is set to K when a shoulder of the ejector rod is abutted against the front baffle, a compression amount of the compression spring in the initial state is set to Δl, the first swing mechanism, the first door knife, and the accessory thereof are combined to form an integral swing structure, which swings downward by its own weight, and the first swing mechanism or the first door knife abuts against the ejector rod after swinging downward, so that the first swing mechanism or the first door knife applies a pressure to the ejector rod, the pressure is set to F, and the elastic coefficient, the compression amount, and the pressure satisfy a relationship of kχΔl being equal to or greater than F.
8. The tie down device of claim 1, wherein the first door knife has a first flange, the second door knife has a second flange, and a set gap or direct abutting contact is maintained between the first flange and the second flange.
9. The fastening device according to claim 1, wherein a plate thickness of the first door vane is set to T1, a plate thickness of the second door vane is set to T2, a gap between the first door vane and the second door vane is set to T3, two rollers of the layer door lock device are respectively a first roller and a second roller, a first safety gap from the first roller to the first door vane is set to L1, a second safety gap from the second roller to the second door vane is set to L2, and a fastening dimension which can be handled by the fastening device is set to L0; The binding size that the binding device can handle satisfies the relationship: l0=l1 +T1+ +T1 +; when t3=0, the first vane is attached to the second vane, and the minimum value of the fastening dimension that the fastening device can handle is l0=l1+t1+t2+l2.
10. A method of operating a fastening device based on the fastening device of any one of claims 1 to 9, comprising the steps of: S1, under an emergency rescue working condition, a lift car door and a landing door are not opened, at the moment, a first safety gap is reserved between a first roller of a landing door lock device and the first door knife, and a second safety gap is reserved between a second roller and the second door knife; The landing door is driven to slightly open for a certain distance, the first roller and the second roller of the landing door lock device translate for a certain distance to the first side, the car door and the tying device are not moved temporarily, at the moment, the second roller is in conflict with the second door knife, the second safety gap disappears, the first movable gap and the first poking gap are kept unchanged, and the first safety gap between the first roller and the first door knife is increased to a third safety gap; S2, driving the landing door to be further opened by a set distance, and further translating a first roller and a second roller of the landing door lock device to a first side by a certain distance, wherein the second door knife is further abutted by the second roller and swings to the first side, and at the moment, the first door knife swings to the first side under the abutting action of the second door knife and compresses the reset regulating mechanism due to the fact that the first roller, the first door knife, the second door knife and the second roller synchronously move to the first side, so that a third safety gap between the first roller and the first door knife is still unchanged; S3, continuously driving the landing door, and pushing the second door blade by a second roller of the landing door lock device until a limiting shaft on the second door blade is abutted with the first end of a sliding groove on the base, and finishing the swing of the second door blade and the first door blade to the first side, wherein The first movable space and the first poking space disappear, and at the moment, the unlocking pull rod forces the car door lock hook to lift up through the vertical bar, and the car door lock hook is unlocked and connected with the lock hook seat; s4, the landing door drives the car door to be completely opened.

Description

Tying device and operation method thereof Technical Field The invention belongs to the technical field of elevators, and particularly relates to a tying device and an operation method thereof. Background The tying device belongs to the device at the side of the car door. When the outer-stretching type fastening device and the layer door lock device are matched to realize door opening and closing, two door knives of the outer-stretching type fastening device are positioned between two rollers of the layer door lock device. Under normal operation conditions, the elevator door drives the landing door to open, wherein the relative distance between the two door knives of the flared binding device increases (this is also the origin of the "flared" name of the binding device). And under the emergency rescue working condition, the landing door drives the car door to open, and the relative distance between the two door knives is reduced. Therefore, if the distance between the two rollers of the landing door lock device is set to be small (i.e. the fastening size is set to be small) due to the structural design of the landing door lock device, the setting distance between the two door knives is also small, so that the mutual contraction of the two door knives of the outward-opening fastening device cannot be realized under the emergency rescue working condition, thereby influencing the emergency rescue. The traditional tying device is not provided with the resetting and adjusting mechanism for moving and limiting, but a limiting bolt is used for fixing and limiting, so that the first door knife of the tying device under the emergency rescue working condition cannot swing left, and when the distance between the first door knife and the second door knife is too close, the first door knife can limit the left swing of the second door knife, so that an unlocking pull rod fixed on the second door knife cannot lift a car door lock hook to realize unlocking, and emergency rescue of 'landing door driving car door opening' cannot be realized. At present, when the conventional fastening device is used for a landing door lock device with a small fastening size, normal door opening of rescue outside a hall cannot be realized, so that great limitation exists in popularization and application, and at present, the fastening device with the small fastening size is lacked to realize normal door opening of rescue outside the hall. At present, an operation method of the novel tying device is also lacking to scientifically guide people to realize rescue outside a hall. Therefore, a new technology is needed to solve the problem of the lack of a new fastening device in the prior art, and a new technology is needed to solve the problem of the lack of an operation method of the new fastening device in the prior art. Disclosure of Invention In order to solve the above problems in the prior art, the present invention provides a novel fastening device, which can cope with the situation that two rollers of a landing door lock device are arranged in a small fastening size, and can realize normal door opening of rescue outside a hall. The invention adopts the following technical scheme: A tying device comprises a base, a first door knife, a first swinging mechanism, a second door knife, a second swinging mechanism, a reset adjusting mechanism and a car door lock hook; The first door knife is arranged on the base through the first swinging mechanism; The reset adjusting mechanism is directly or indirectly arranged on the base and is positioned on the first side of the first door knife; The second door knife is arranged on the base through the second swinging mechanism; The car door lock hook is rotatably arranged on the base and positioned at the second side of the first door knife, and is used for being timely connected with a lock hook seat indirectly or directly arranged on the car; the base can be arranged on the car; the first door knife is provided with an unlocking ejector rod, and the second door knife is provided with an unlocking pull rod; The first door knife keeps a set initial state through the first swinging mechanism and the reset adjusting mechanism, and in the initial state, the unlocking ejector rod keeps a set interval to face the roller or tangentially contact the roller; In a state that the car door is closed and the car door lock hook is connected with the lock hook seat, a set gap or direct abutting contact is kept between the first door knife and the second door knife, and the unlocking pull rod and the vertical bar keep a set first poking distance; When the tie device is mated with the landing door lock device, the first vane and the second vane can be positioned between the two rollers of the landing door lock device. The second swinging mechanism comprises a first swinging arm assembly, a first setting position of the second door cutter is connected with the base through the first swinging arm assembly, the first swinging