CN114644280B - Elevator landing door structure and door opening method - Google Patents
Elevator landing door structure and door opening method Download PDFInfo
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- CN114644280B CN114644280B CN202210230753.6A CN202210230753A CN114644280B CN 114644280 B CN114644280 B CN 114644280B CN 202210230753 A CN202210230753 A CN 202210230753A CN 114644280 B CN114644280 B CN 114644280B
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- sliding
- locking piece
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- 238000000034 method Methods 0.000 title claims description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims description 24
- 230000009471 action Effects 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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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
- B66B13/14—Control systems or devices
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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
-
- 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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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses an elevator landing door structure, which comprises a left door, a right door and a door frame beam, wherein the left door and the right door are respectively fixed on a left hanging plate and a right hanging plate, the left hanging plate and the right hanging plate are slidably arranged on the door frame beam, a lock hook is fixed on the left hanging plate, a door lock mechanism is movably arranged on the right hanging plate, and the door lock mechanism comprises a lock tongue, a sliding frame and a fixing frame; the lock tongue is arranged on the sliding frame in a sliding way; the lock tongue and the fixing frame are respectively connected with two ends of the lock tongue spring; the lock tongue is rotatably provided with a locking piece used for supporting the sliding frame in a sliding-out state; the manual unlocking mechanism is provided with a push rod with a degree of freedom in movement in the vertical direction. According to the invention, through designing the effective sliding travel between the lock tongue and the sliding frame, a larger gap can be obtained between the left door and the right door, and the lock tongue is not lifted at the moment, so that the left door and the right door cannot be pulled out continuously after being pulled out to a certain distance, and the safety is ensured.
Description
Technical Field
The invention relates to the field of elevator equipment, in particular to an elevator landing door structure.
Background
In the daily maintenance process of the elevator, staff needs to open the landing door by using a key, when the landing door is opened in the initial stage, the resistance is larger, and therefore, larger force needs to be applied, and after the landing door starts to slide, the resistance becomes smaller, if the experience of the maintainer is insufficient, the force is not received timely, the sliding speed of the landing door can be suddenly accelerated, a certain potential safety hazard exists in the process, the maintainer easily loses balance, and then the risk of falling into a hoistway exists, aiming at the problem, the invention patent of application number 202110979787.0 discloses an elevator landing door lock structure, a first locking piece is arranged on a beam corresponding to the position of a first hanging plate, a second locking piece is arranged on a second hanging plate, the first locking piece is movably locked with the second locking piece, and the elevator landing door lock device further comprises a secondary protection device for driving the second locking piece to be separated from the first locking piece, and the second landing door is opened for the first time to form an observation port incapable of passing through a human body, after the safety is confirmed, the elevator landing door lock structure is required to be opened for the second time, the first landing door lock device and the second landing door lock device is opened for the second time, and the accident protection device is completely opened for the second landing door lock device is completely through the second landing door protection device. The applicant researches show that the landing door structure for realizing the door opening by using the secondary door opening mode still has an optimized space in unlocking logic and structural design.
Disclosure of Invention
The invention aims to provide an elevator landing door structure with safer and more convenient unlocking.
The invention solves the problems by adopting the following technical scheme:
the utility model provides an elevator layer door structure, includes left door, right door and door frame roof beam, and left door, right door are fixed respectively on left link plate, right link plate, left link plate, right link plate slidable mounting in on the door frame roof beam, be fixed with the latch hook on the left link plate, movable mounting has lock mechanism on the right link plate, is fixed with on the right link plate and is used for pushing up lock mechanism's spacing spring, be provided with first croquet and second croquet on the lock mechanism, the relative vertical direction of arrangement direction of first croquet and second croquet is the contained angle setting, installs manual unlocking mechanism on the right door, its characterized in that: the door lock mechanism comprises a lock tongue, a sliding frame and a fixing frame; the sliding frame is rotatably provided with a first gate ball and a second gate ball, and is rotatably arranged on the fixing frame around the rotating shaft of the second gate ball; the lock tongue is arranged on the sliding frame in a sliding way; the lock tongue and the fixing frame are respectively connected with two ends of the lock tongue spring; the lock tongue is rotatably provided with a locking piece used for supporting the sliding frame in a sliding-out state; the manual unlocking mechanism is provided with a push rod with a degree of freedom in movement in the vertical direction; after the ejector rod finishes the downward movement, the constraint of the ejector rod on the lock tongue is released, so that the lock tongue has the degree of freedom of sliding relative to the sliding frame; after the ejector rod completes the upward movement, the lifting of the lock tongue is realized, so that the lock tongue is separated from the lock hook, and the reset of the lock tongue and the locking piece is realized in the process. By adopting the structure, through designing the effective sliding travel between the lock tongue and the sliding frame, a larger gap can be obtained between the left door and the right door, thereby facilitating the polishing and observing actions; the lock tongue is not lifted at the moment, so that the left door and the right door cannot be pulled out continuously after being pulled out to a certain distance, and the safety is ensured; after the left door and the right door are loosened, the left door and the right door can be automatically closed under the action of the spring bolt, and if a person leaves a field in the operation process, and the elevator runs to the landing door position due to faults or misoperation, the left door and the right door are kept closed, so that the phenomenon of striking between an elevator door blade and a first door ball and a second door ball can be avoided and relieved to a certain extent; the unlocking step is simple, the operation is convenient, and the safety is also ensured.
Further, as an optimization, the locking piece comprises a rotating column and a guiding locking piece integrally fixed on the rotating column, the left side of the guiding locking piece is arc-shaped, a first limiting block and a second limiting block which limit the rotating range of the guiding locking piece are fixed on the lock tongue, the rotating column is rotatably arranged on the lock tongue, and a torsion spring used for driving the guiding locking piece to overturn downwards is sleeved on the rotating column; the sliding frame is provided with a limiting strip in a sliding mode, a baffle plate which is obliquely arranged is fixed on the fixing frame, the sliding frame is provided with a pressure spring which enables the limiting strip to abut against the baffle plate right, the right end of the limiting strip abuts against the baffle plate, and the upper end of the baffle plate is close to the left and the lower end of the baffle plate is close to the right. The locking piece has 3 functions simultaneously, (1) the locking piece is downwards turned out under the action of the torsion spring in the sliding process of the locking bolt relative to the sliding frame, and is propped against the limiting strip in the sliding process of the locking bolt into the sliding frame, so that the locking bolt is prevented from sliding into the sliding frame, the left door and the right door cannot be separated under the first door opening state, and the safety is ensured; (2) The left side of the guide locking piece is arc-shaped, so that the ejector rod props against the guide locking piece in the upward process, the lock tongue rotates, when the lock tongue is lifted up to a certain stage, the limiting strip breaks away from the blocking of the end part of the guide locking piece (the breaking away process is as above), the guide locking piece breaks away from the left section of the limiting strip, the guide locking piece rotates anticlockwise, the guide locking piece slides into the sliding frame along with the lock tongue under the pulling of the lock tongue spring, the end part of the ejector rod slides upwards relative to the arc-shaped left side edge of the guide locking piece until the right side of the ejector rod props against the rotating column at the upper end of the guide locking piece, and the reset of the locking piece and the door lock mechanism is realized; (3) In the normal operation process of the elevator, no matter whether the elevator door knife is in a rotating state of driving the rotating shaft of the first door ball relative to the second door ball, the ejector rod can prevent the lock tongue from sliding out through blocking the rotating column, so that the normal operation of the elevator is ensured.
Further, as the preference, the left end setting of spacing has the concave structure towards the right side, and concave structure can make spacing more reliable effective to the blocking of direction locking piece tip.
Further, preferably, the spring bolt is in a compressed state in an initial state, a baffle plate is fixed on the upper edge of the spring bolt, a fixing plate is fixed on the right hanging plate, a limit supporting rod is fixed on the fixing plate, the limit supporting rod comprises a first cylindrical part, a second cylindrical part and a third cylindrical part which are connected in sequence in an integrated manner, the fixing plate is used for fixing the end part of the first cylindrical part, the first cylindrical part and the third cylindrical part are horizontally arranged, the second cylindrical part is vertically arranged, and when the door lock mechanism is in the initial state, the third cylindrical part is positioned at the left side of the baffle plate; after the ejector rod finishes the downward movement, the lock tongue slides outwards for a certain distance, and the third cylindrical part is positioned above the baffle plate; when the right end of the limit bar is propped against the baffle, the third cylindrical part is positioned on the right side of the baffle, when the lock tongue is lifted up to a certain stage, the guide locking piece slides into the sliding frame along with the lock tongue under the pulling of the spring of the lock tongue, and at the moment, the baffle slides into the upper part of the third cylindrical part and then is separated from the sliding frame, and the initial state is restored. By adopting the structure, operators can not immediately perform the upward movement of the ejector rod after the downward movement of the ejector rod is completed, and the operator can perform the movement after the left door and the right door are opened to a certain degree, so that the effectiveness of the movement process is ensured to a certain degree.
Further, as the preference, manual unlocking mechanism includes lock core, eccentric piece, connecting rod and ejector pin, the eccentric piece is fixed in the dabber of lock core, and the both ends of connecting rod articulate eccentric piece and ejector pin respectively, the vertical slidable mounting of ejector pin is on right door plant, and the cover is equipped with the pressure spring that is used for vertically upwards propping up the ejector pin on the ejector pin.
Further, preferably, the lock tongue is provided with a chute, and the sliding frame is fixed with a guide block which is slidably mounted on the chute.
The door opening method based on the elevator landing door structure is characterized by comprising the following steps of: the method comprises the following steps:
(1) Step S1, after a lock cylinder is inserted into a triangular key, the triangular key is rotated in the forward direction to enable a mandrel to rotate, and after the ejector rod is driven to finish downward movement, the constraint of the ejector rod on a lock tongue is released;
(2) Step S2, after the left door and the right door are pulled open to a certain distance, the guide locking piece slides outwards to push the limiting strip against the second limiting block, at the moment, the impact sound of the second limiting block is heard when the guide locking piece rotates to strike the second limiting block, people can observe the action, and the electric torch can be used for polishing the interior of the hoistway under the condition of poor light, so that the electric torch is convenient to observe;
(3) And S3, after the lock cylinder is inserted into the triangular key, reversely rotating the triangular key to enable the mandrel to rotate, driving the ejector rod to finish upward movement, pushing the lock tongue to rotate, and finishing door opening movement.
Compared with the prior art, the invention has the following advantages and effects:
(1) Through designing the effective sliding travel between the lock tongue and the sliding frame, a larger gap can be obtained between the left door and the right door, so that polishing and observing actions are convenient;
(2) The lock tongue is not lifted at the moment, so that the left door and the right door cannot be pulled out continuously after being pulled out to a certain distance, and the safety is ensured;
(3) After the left door and the right door are loosened, the left door and the right door can be automatically closed under the action of the spring bolt, and if a person leaves a field in the operation process, and the elevator runs to the landing door position due to faults or misoperation, the left door and the right door are kept closed, so that the phenomenon of striking a knife between the elevator door knife and the first door ball and between the elevator door knife and the second door ball can be avoided and relieved to a certain extent;
(4) Compared with the traditional door lock structure with the manual door opening, the elevator landing door structure disclosed by the invention has the advantages that the manual unlocking step is simple, the operation is convenient, the safety is also ensured, and the changes are concentrated on the lock tongue and the connecting part of the lock tongue, so that the landing door structure is less in structural changes, and the elevator landing door structure has a larger popularization and use space.
Drawings
Fig. 1 is a schematic structural view of an elevator landing door structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of an initial state of the door lock mechanism according to the embodiment of the present invention.
Fig. 3 is a schematic structural view of a latch according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a carriage according to an embodiment of the present invention.
Fig. 5 is a schematic view of a first working state of the door lock mechanism according to the embodiment of the present invention.
Fig. 6 is a schematic view of a second operating state of the door lock mechanism according to the embodiment of the present invention.
Fig. 7 is a schematic view showing a third operating state of the door lock mechanism according to the embodiment of the present invention.
Fig. 8 is a schematic view of a fourth operating state of the door lock mechanism according to the embodiment of the present invention.
Fig. 9 is a schematic view showing a fifth operation state of the door lock mechanism according to the embodiment of the present invention.
Fig. 10 is a schematic view of the door lock mechanism in a normal operation state according to the embodiment of the present invention.
Fig. 11 is a schematic view showing state change of the limit supporting rod and the baffle according to the embodiment of the invention.
Reference numerals: left door 11, right door 12, door frame beam 13, left hanger plate 14, right hanger plate 15, lock hook 16, limit spring 17, first door ball 18, second door ball 19, door lock mechanism 2, lock tongue 21, carriage 22, mount 23, chute 24, guide block 25, lock tongue spring 26, lock piece 3, rotation column 31, guide lock piece 32, first stopper 33, second stopper 34, limit bar 35, baffle 36, baffle piece 41, fixing piece 42, limit support rod 43, first cylindrical portion 431, second cylindrical portion 432, third cylindrical portion 433, manual unlocking mechanism 5, lock cylinder 51, eccentric piece 52, connecting rod 53, ejector pin 54
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
The elevator landing door structure of the embodiment comprises a left door 11, a right door 12 and a door frame beam 13, wherein the left door 11 and the right door 12 are respectively fixed on a left hanging plate 14 and a right hanging plate 15, the left hanging plate 14 and the right hanging plate are slidably arranged on the door frame beam 13, a lock hook 16 is fixed on the left hanging plate 14, a door lock mechanism 2 is movably arranged on the right hanging plate 15, a limit spring 17 for propping the door lock mechanism 2 is fixed on the right hanging plate 15, a first door ball 18 and a second door ball 19 are arranged on the door lock mechanism 2, the arrangement direction of the first door ball 18 and the second door ball 19 is in an included angle with respect to the vertical direction (the included angle is shown as an included angle alpha in fig. 2, the arrangement of the first door ball 18 and the second door ball 19 is in a conventional design, and can clamp the first door ball 18 and the second door ball 19 when a door knife of a car door is tightened, so that the first door ball 18 can rotate relative to a rotating shaft of the second door ball 19), a manual mechanism 5 is arranged on the right door 12, and the door lock mechanism 2 comprises a fixed frame 21, a sliding frame 22 and a locking bolt 23; the first gate ball 18 and the second gate ball 19 are rotatably mounted on the sliding frame 22, and the sliding frame 22 is rotatably mounted on the fixing frame 23 around the rotating shaft of the second gate ball 19 (when the first gate ball 18 rotates relative to the rotating shaft of the second gate ball 19, the sliding frame 22 also rotates around the rotating shaft of the second gate ball 19); the lock tongue 21 is slidably mounted on the sliding frame 22, so that when the sliding frame 22 rotates around the rotating shaft (in the specification, simply referred to as a working shaft) of the second door ball 19, the lock tongue 21 also rotates synchronously, and the lock tongue 21 can be separated from the lock hook 16 to realize unlocking); the lock tongue 21 and the fixed frame 23 are respectively connected with two ends of the lock tongue spring 26; the lock tongue 21 is rotatably provided with a locking piece 3 for supporting the sliding frame 22 in a sliding-out state; the lock tongue 21 is provided with a chute 24, the sliding frame 22 is fixed with a guide block 25, and the guide block 25 is slidably mounted on the chute 24.
The manual unlocking mechanism 5 is provided with a push rod 54 with a freedom degree in movement in the vertical direction; as shown in fig. 10, during the normal elevator door opening and closing process (i.e., during the door opening process driven by the door vane of the car door, the working process is not different from the door lock structure of the ordinary landing door), and the lock tongue 21 and the lock hook 16 are normally disengaged and overlapped. After the ejector rod 54 completes the downward movement, the constraint of the ejector rod 54 on the lock tongue 21 is released, and the constraint is as follows: under the blocking of the ejector rod 54, the lock tongue 21 cannot move leftwards, so that the lock tongue 21 cannot slide relative to the sliding frame 22, and the lock tongue 21 has the degree of freedom of sliding relative to the sliding frame 22; after the push rod 54 completes the upward movement, the lifting of the lock tongue 21 is realized, so that the lock tongue 21 is separated from the lock hook 16, and the reset of the lock tongue 21 and the locking piece 3 is realized in the process. The first door opening process is realized, the left door 11 and the right door 12 can be relatively pulled open in the process, a larger gap is formed between the left door 11 and the right door 12 and is used for observing the condition inside the elevator shaft, in actual operation, due to the fact that the illumination condition inside the elevator shaft is poor, the illumination of the flashlight is required to be matched, by adopting the structure, the larger gap can be formed between the left door 11 and the right door 12 through the design of the effective sliding travel between the lock tongue 21 and the sliding frame 22, and therefore the lighting and observing actions are convenient; because the lock tongue 21 is not lifted at this time, the left door 11 and the right door 12 cannot be pulled apart continuously after being pulled apart to a certain distance, and the safety is ensured; after the left door 11 and the right door 12 are released, the left door 11 and the right door 12 are automatically closed under the action of the latch spring 26, if a person leaves the floor during operation, and when the elevator runs to the landing door position due to a fault or an operation error, the left door 12 and the right door 12 are kept closed, so that the striking phenomenon between the elevator door blade and the first door ball 18 and the second door ball 19 can be avoided and relieved to a certain extent, and it should be noted that, as described below, a certain compression stroke is preset in the initial state of the latch spring 26 in the embodiment, after the latch spring 26 is extended, the blocking piece 41 slides below the third cylindrical portion 433, and the sliding distance of the blocking piece 41 is possibly small from the design, and the stroke can be adaptively designed according to the clearance between the door blade and the door ball and the assembly precision of the equipment.
The locking piece 3 comprises a rotating column 31 and a guide locking piece 32 integrally fixed on the rotating column 31, the left side of the guide locking piece 32 is arc-shaped, a first limiting block 33 and a second limiting block 34 which limit the rotating range of the guide locking piece 32 are fixed on the lock tongue 21, the rotating column 31 is rotatably installed on the lock tongue 21, and a torsion spring used for driving the guide locking piece 32 to overturn downwards is sleeved on the rotating column 31; the sliding frame 22 is slidably provided with a limit bar 35, the fixing frame 23 is fixedly provided with a baffle 36 which is obliquely arranged, the sliding frame 22 is provided with a pressure spring which enables the limit bar 35 to lean against the baffle 36 rightwards, the right end of the limit bar 35 is propped against the baffle 36, the upper end (opposite lower end) of the baffle 36 is close to the left and the lower end (opposite upper end) is close to the right, and the idea of the arrangement of the baffle 36 is that: as shown in fig. 5, the moving track of the rotation of the K point (the point where the right end of the limit bar 35 is located in the initial state) relative to the working axis refers to the circular arc line in the relative drawing, and the baffle 36 is significantly deviated to the right, so that the limit bar 35 slides to the right when rotating under the action of the compression spring, and the limit bar 35 breaks away from the blocking of the end of the guide locking piece 32, so that the guide locking piece 32 has a degree of freedom of counterclockwise rotation. As shown in fig. 5-9, the locking member 3 has 3 functions at the same time, (1) in the process of sliding the lock tongue 21 relative to the sliding frame 22, the locking member is turned down under the action of the torsion spring, and abuts against the limit bar 35 in the process of sliding the lock tongue 21 into the sliding frame 22, so that the lock tongue 21 is prevented from sliding into the sliding frame 22, and the left door 11 and the right door 12 cannot be separated under the first door opening state, thereby ensuring the safety; (2) The left side of the guide locking piece 32 is arc-shaped, so that in the upward process of the ejector rod 54, the ejector rod 54 props against the guide locking piece 32, the lock tongue 21 rotates, when the lock tongue 21 is lifted up to a certain stage, the limiting strip 35 breaks away from the blocking of the end part of the guide locking piece 32 (the separation process is as above), the guide locking piece 32 breaks away from the left section of the limiting strip 35, the guide locking piece 32 rotates anticlockwise, under the pulling of the lock tongue spring 26, the guide locking piece 32 slides into the sliding frame 22 along with the lock tongue 21, the end part of the ejector rod 54 slides upwards relative to the arc-shaped left side edge of the guide locking piece 32 until the right side of the ejector rod 54 props against the rotating column 31 at the upper end of the guide locking piece 32, and the reset of the locking piece 3 and the door lock mechanism 2 is realized; (3) As shown in fig. 10, in the normal operation process of the elevator, as shown in fig. 2 and 10, no matter whether the elevator door vane is in a rotating state of driving the first door ball 18 relative to the rotating shaft of the second door ball 19, the ejector rod 54 can prevent the lock tongue 21 from sliding out by blocking the rotating column 31, so that the normal operation of the elevator is ensured. The left end of the limit bar 35 is provided with a concave structure facing the right side, and the concave structure can enable the limit bar 35 to block the end part of the guide locking piece 32 more reliably and effectively.
The spring bolt 26 is in a compressed state in an initial state, the upper edge of the spring bolt 21 is fixed with a baffle 41, the right hanging plate 15 is fixed with a fixing plate 42, the fixing plate 42 is fixed with a limit supporting rod 43, the limit supporting rod 43 comprises a first cylindrical part 431, a second cylindrical part 432 and a third cylindrical part 433 which are sequentially connected in an integral mode, the fixing plate 42 is fixed with the end part of the first cylindrical part 431, the first cylindrical part 431 and the third cylindrical part 433 are horizontally arranged, the second cylindrical part 432 is vertically arranged, when the door lock mechanism 2 is in the initial state, as shown in fig. 1, the third cylindrical part 433 is positioned at the left side of the baffle 41, in the normal operation process of an elevator, the elevator door knife drives the first door ball 18 to rotate relative to the rotating shaft of the second door ball 19, and the baffle 41 can not interfere the third cylindrical part, so that normal operation is ensured; after the ejector rod 54 completes the downward movement, the constraint of the ejector rod 54 on the lock tongue 21 is released, and the lock tongue spring 26 is in a compressed state in the initial state, so that the lock tongue 21 slides outwards for a certain distance, and it is noted that the compression amount in the compressed state in the initial state is not very large, and the outward sliding distance of the lock tongue 21 is also small, and at this time, the third cylindrical portion 433 is located above the baffle 41 (as shown in fig. 5 and (a) in fig. 11), so that the ejector rod 54 cannot push the lock tongue 21 to rotate when moving upwards at this time; when the right end of the limit bar 35 abuts against the baffle 36, as shown in fig. 7, the third cylindrical portion 433 is located on the right side of the blocking piece 41, so that when the push rod 54 moves upward, the lock tongue 21 can be pushed to rotate, and when the lock tongue 21 rises to a certain stage, the guide locking piece 32 slides into the sliding frame 22 along with the lock tongue 21 under the pulling of the lock tongue spring 26, as shown in fig. 9 and (b) in fig. 11, the blocking piece 41 slides into the upper side of the third cylindrical portion 433, and then is separated, and returns to the initial state. With the above structure, it is ensured that the operator cannot immediately move the push rod 54 upward after the push rod 54 moves downward, and the operator must perform the above-mentioned movement after the left and right doors 12 are opened to a certain extent, so that the effectiveness of the movement process is ensured to a certain extent.
The manual unlocking mechanism 5 comprises a lock cylinder 51, an eccentric piece 52, a connecting rod 53 and a push rod 54, wherein the eccentric piece 52 is fixed on a mandrel of the lock cylinder 51, after the lock cylinder 51 is inserted into a triangular key, the triangular key is rotated to enable the mandrel to rotate, so that the eccentric piece 52 is driven to rotate, two ends of the connecting rod 53 are respectively hinged with the eccentric piece 52 and the push rod 54, the push rod 54 is vertically and slidably arranged on a right door 12 plate, a pressure spring for vertically and upwards pushing the push rod 54 is sleeved on the push rod 54, and the pressure spring has pressure for vertically and upwards pushing the push rod 54, so that the triangular key needs to be rotated to overcome certain resistance.
The door opening method of the elevator landing door structure comprises the following steps:
(1) Step S1, after a triangular key is inserted into a lock cylinder 51, the triangular key is rotated in the forward direction to enable a mandrel to rotate, so that the ejector rod 54 is driven to release the constraint of the ejector rod 54 on the lock tongue 21 after the downward movement is completed;
(2) Step S2, after the left door 11 and the right door 12 are pulled open to a certain distance, the guide locking piece 32 slides outwards to form a limit bar 35 to prop against the second limit block 34, at the moment, the impact sound of the guide locking piece 32 rotating to impact the second limit block 34 can be heard, people can observe the action, and for the condition of poor light, the interior of a hoistway can be polished through a flashlight, so that the observation is convenient;
(3) Step S3, after the lock cylinder 51 is inserted into the triangular key, the triangular key is reversely rotated to rotate the spindle, so as to drive the ejector rod 54 to complete the upward movement, and the lock tongue 21 is pushed to rotate, thereby completing the door opening movement.
Since the latch hook 16 is fixed relative to the left door 11, the horizontal distance between the push rod 54 and the right door 12 is kept constant (the push rod 54 only has a vertical movement degree), and the distance between the left door 12 and the right door 12 in each state changes in this embodiment, the reference distance L in the figure may be used as a reference.
The foregoing description of the invention is merely exemplary of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. An elevator landing door structure comprises a left door, a right door and a door frame beam, wherein the left door and the right door are respectively fixed on a left hanging plate and a right hanging plate, the left hanging plate and the right hanging plate are slidably arranged on the door frame beam, a lock hook is fixed on the left hanging plate, a door lock mechanism is movably arranged on the right hanging plate, a limit spring for supporting the door lock mechanism is fixed on the right hanging plate, a first gate ball and a second gate ball are arranged on the door lock mechanism, the arrangement directions of the first gate ball and the second gate ball are arranged at an included angle relative to the vertical direction,
install manual unlocking mechanism on the right side door, its characterized in that: the door lock mechanism comprises a lock tongue, a sliding frame and a fixing frame; the sliding frame is rotatably provided with a first gate ball and a second gate ball, and is rotatably arranged on the fixing frame around the rotating shaft of the second gate ball; the lock tongue is arranged on the sliding frame in a sliding way; the lock tongue and the fixing frame are respectively connected with two ends of the lock tongue spring; the lock tongue is rotatably provided with a locking piece used for supporting the sliding frame in a sliding-out state; the manual unlocking mechanism is provided with a push rod with a degree of freedom in movement in the vertical direction; after the ejector rod finishes the downward movement, the constraint of the ejector rod on the lock tongue is released, so that the lock tongue has the degree of freedom of sliding relative to the sliding frame; after the ejector rod completes the upward movement, the lifting of the lock tongue is realized, so that the lock tongue is separated from the lock hook, and the reset of the lock tongue and the locking piece is realized in the process.
2. The elevator landing door structure of claim 1, wherein: the locking piece comprises a rotating column and a guide locking piece integrally fixed on the rotating column, the left side of the guide locking piece is arc-shaped, a first limiting block and a second limiting block which limit the rotating range of the guide locking piece are fixed on the lock tongue, the rotating column is rotatably arranged on the lock tongue, and a torsion spring used for driving the guide locking piece to overturn downwards is sleeved on the rotating column; the sliding frame is provided with a limiting strip in a sliding mode, a baffle plate which is obliquely arranged is fixed on the fixing frame, the sliding frame is provided with a pressure spring which enables the limiting strip to abut against the baffle plate right, the right end of the limiting strip abuts against the baffle plate, and the upper end of the baffle plate is close to the left and the lower end of the baffle plate is close to the right.
3. The elevator landing door structure of claim 1, wherein: the left end of the limit strip is provided with a concave structure facing to the right side.
4. The elevator landing door structure of claim 1, wherein: the spring bolt spring is in a compressed state in an initial state, a baffle plate is fixed on the upper edge of the spring bolt, a fixing plate is fixed on the right hanging plate, a limiting support rod is fixed on the fixing plate, the limiting support rod comprises a first cylindrical part, a second cylindrical part and a third cylindrical part which are connected in sequence in an integrated mode, the fixing plate is used for fixing the end part of the first cylindrical part, the first cylindrical part and the third cylindrical part are horizontally arranged, the second cylindrical part is vertically arranged, and when the door lock mechanism is in the initial state, the third cylindrical part is positioned on the left side of the baffle plate; after the ejector rod finishes the downward movement, the lock tongue slides outwards for a certain distance, and the third cylindrical part is positioned above the baffle plate; when the right end of the limit bar is propped against the baffle, the third cylindrical part is positioned on the right side of the baffle, when the lock tongue is lifted up to a certain stage, the guide locking piece slides into the sliding frame along with the lock tongue under the pulling of the spring of the lock tongue, and at the moment, the baffle slides into the upper part of the third cylindrical part and then is separated from the sliding frame, and the initial state is restored.
5. The elevator landing door structure of claim 1, wherein: the manual unlocking mechanism comprises a lock cylinder, an eccentric piece, a connecting rod and a push rod, wherein the eccentric piece is fixed on a mandrel of the lock cylinder, two ends of the connecting rod are respectively hinged with the eccentric piece and the push rod, the push rod is vertically and slidably arranged on a right door plate, and a pressure spring for vertically and upwards pushing the push rod is sleeved on the push rod.
6. The elevator landing door structure of claim 1, wherein: a sliding groove is formed in the lock tongue, a guide block is fixed on the sliding frame, and the guide block is slidably mounted on the sliding groove.
7. A door opening method based on the elevator landing door structure of any one of claims 1 to 6, characterized in that: the method comprises the following steps:
(1) Step S1, after a lock cylinder is inserted into a triangular key, the triangular key is rotated in the forward direction to enable a mandrel to rotate, and after the ejector rod is driven to finish downward movement, the constraint of the ejector rod on a lock tongue is released;
(2) S2, after the left door and the right door are opened to a certain distance, the guide locking piece slides outwards to push the limiting strip against the second limiting block;
(3) And S3, after the lock cylinder is inserted into the triangular key, reversely rotating the triangular key to enable the mandrel to rotate, driving the ejector rod to finish upward movement, pushing the lock tongue to rotate, and finishing door opening movement.
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| CN202210230753.6A CN114644280B (en) | 2022-03-10 | 2022-03-10 | Elevator landing door structure and door opening method |
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| CN202210230753.6A CN114644280B (en) | 2022-03-10 | 2022-03-10 | Elevator landing door structure and door opening method |
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| CN115854629B (en) * | 2022-12-01 | 2024-05-14 | 四川虹美智能科技有限公司 | Pressure-controlled spring-open type refrigerator door opening device |
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|---|---|
| CN114644280A (en) | 2022-06-21 |
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Denomination of invention: An elevator floor door structure and opening method Granted publication date: 20240220 Pledgee: China Construction Bank Corporation Wuyi Sub-branch Pledgor: Zhejiang Zhiling Technology Co.,Ltd. Registration number: Y2024980040713 |