CN114644280A - Elevator landing door structure and door opening method - Google Patents
Elevator landing door structure and door opening method Download PDFInfo
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- CN114644280A CN114644280A CN202210230753.6A CN202210230753A CN114644280A CN 114644280 A CN114644280 A CN 114644280A CN 202210230753 A CN202210230753 A CN 202210230753A CN 114644280 A CN114644280 A CN 114644280A
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- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 19
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- 238000000926 separation method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
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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
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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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- 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 mounted on the door frame beam, a latch hook is fixed on the left hanging plate, a movable door lock mechanism is mounted on the right hanging plate, and the door lock mechanism comprises a lock tongue, a sliding frame and a fixed frame; the lock tongue is slidably arranged on the sliding frame; the lock tongue and the sliding frame are respectively connected with two ends of the spring; a locking piece used for propping the sliding frame in a sliding state is rotatably arranged on the lock tongue; the manual unlocking mechanism is provided with a mandril with vertical movement freedom. According to the invention, by designing the effective sliding stroke 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 continuously pulled after being pulled 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 routine maintenance process of an elevator, a worker needs to open a landing door by using a key, when the landing door is opened at the initial stage, the resistance is large, so that large force needs to be applied, the resistance is reduced after the landing door begins to slide, if the experience of a maintainer is insufficient, the force is not timely received, the sliding speed of the landing door is suddenly accelerated, certain potential safety hazards exist in the process, the maintainer easily loses balance, and further the risk of falling into a hoistway is avoided, the invention patent of application No. 202110979787.0 discloses an elevator landing door lock structure, a first locking piece is arranged at the position of a cross beam corresponding to a first hanging plate, a second locking piece is arranged on the second hanging plate, the first locking piece and the second locking piece are movably locked, the elevator landing door lock structure further comprises a landing door lock device for driving the second locking piece to be separated from the first locking piece, and a secondary protection device for preventing the operator from falling into the hoistway, the secondary protection device drives the first layer door and the second layer door to be opened for the first time to form an observation port through which a human body cannot pass, after safety is confirmed, an operator needs to operate the layer door lock device again, and the first layer door and the second layer door can be opened completely after being opened for the second time. The applicant researches and discovers that the layer door structure for realizing door opening by using a secondary door opening mode still has an optimized space on unlocking logic and structural design.
Disclosure of Invention
The invention aims to provide an elevator landing door structure which is safer and more convenient to unlock.
The technical scheme adopted by the invention for solving the problems is as follows:
the utility model provides an elevator layer door structure, includes left door, right door and doorframe 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 doorframe roof beam, be fixed with the latch hook on the left link plate, movable door locking mechanism of installing on the right link plate is fixed with on the right link plate and is used for withstanding door locking mechanism's spacing bullet @ spring is provided with first croquet and second croquet on the door locking mechanism, and the relative vertical direction of arranging 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 the sliding frame is rotatably arranged on the fixed frame around a rotating shaft of the second gate ball; the lock tongue is slidably arranged on the sliding frame; the lock tongue and the sliding frame are respectively connected with two ends of the spring; a locking piece used for propping the sliding frame in a sliding state is rotatably arranged on the lock tongue; the manual unlocking mechanism is provided with a mandril with vertical movement freedom degree; after the ejector rod finishes downward movement, the constraint of the ejector rod on the lock tongue is removed, 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, a larger gap can be obtained between the left door and the right door by designing the effective sliding travel between the lock tongue and the sliding frame, so that polishing and observation actions are convenient; at the moment, the lock tongue is not lifted, so that the left door and the right door cannot be continuously pulled after being pulled 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, if a person leaves the 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 knife collision among an elevator door knife, 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 guaranteed.
Further, preferably, 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 rotation range of the guide locking piece are fixed on the spring bolt, the rotating column is rotatably installed on the spring bolt, and a torsion spring for driving the guide locking piece to overturn downwards is sleeved on the rotating column; sliding mounting has spacing on the carriage, be fixed with the baffle that is the slope setting on the mount, be provided with on the carriage with spacing supports the pressure spring on the baffle right, and spacing right-hand member supports on the baffle, and the upper end of baffle is leaned on left and the lower extreme leans on the right side. The locking piece has 3 functions simultaneously, (1) in the process that the spring bolt slides out relative to the sliding frame, the locking piece is turned out downwards under the action of the torsion spring and supports against the limiting strip in the process that the spring bolt slides into the sliding frame, so that the spring bolt is prevented from sliding into the sliding frame, the left door and the right door cannot be separated in the state that the door is opened for the first time, and the safety is ensured; (2) the left side of the guide locking piece is arc-shaped, so that the ejector rod can prop against the guide locking piece in the upward process of the ejector rod to enable the spring bolt to rotate, when the spring bolt is lifted to a certain stage, the limiting strip is separated from the end part of the guide locking piece (the separation process is as above), the guide locking piece is separated 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 spring bolt under the pulling of the 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 resetting of the locking piece and the door lock mechanism is realized; (3) in the normal operation in-process of elevator, no matter whether elevator door sword is driving the pivot rotation state of the relative second door ball of first door ball, the ejector pin all can avoid the spring bolt roll-off through blocking the rotation post, has guaranteed the normal operation of elevator.
Further, as preferred, the left end setting of spacing strip has towards the sunk structure on right side, and the sunk structure can make spacing strip more reliable effective to blockking of direction lock plate tip.
Furthermore, as an optimization, the spring is in a compressed state in an initial state, a separation blade is fixed on the upper edge of the lock tongue, 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 sequentially connected in an integrated manner, the fixing plate fixes 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 separation blade; after the ejector rod finishes downward movement, the lock tongue slides outwards for a certain distance, and the third cylindrical part is positioned above the blocking piece; when the right end of the limiting strip abuts against the baffle, the third cylindrical part is located on the right side of the blocking piece, 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, and the blocking piece slides into the upper part of the third cylindrical part, then breaks away from the sliding frame and returns to the initial state. Adopt like above structure, can guarantee that operating personnel can't carry out the ejector pin immediately and advance upward activity action after the ejector pin is accomplishing activity action down, must open to certain degree after controlling the door, can carry out above-mentioned action, has guaranteed the validity of the process of action to a certain extent.
Further, as preferred, manual unlocking mechanism includes lock core, eccentric disc, connecting rod and ejector pin, the eccentric disc is fixed in on the dabber of lock core, and the both ends of connecting rod articulate eccentric disc and ejector pin respectively, the ejector pin is vertical slidable mounting on the right door plant, and the cover is equipped with the pressure spring that is used for propping the ejector pin vertically downwards on the ejector pin.
Further, as preferred, the spout has been seted up on the spring bolt, is fixed with the guide block on the carriage, guide block slidable mounting is on the spout.
A door opening method based on the elevator landing door structure is characterized in that: the method comprises the following steps:
(1) step S1, after the lock core is inserted into the triangular key, the triangular key is rotated in the forward direction to enable the core shaft to rotate, the ejector rod is driven to complete the downward movement, and then the restraint of the ejector rod on the lock tongue is removed;
(2) step S2, after the left door and the right door are opened to a certain distance, the guide locking sheet slides outwards out of the limiting bar to abut against the guide locking sheet, at the moment, the impact sound generated when the guide locking sheet rotates to impact the second limiting block is heard, so that a person can observe the movement, and under the condition of poor light, the inside of the well can be polished through the flashlight, and observation is facilitated;
(3) and step S3, after the triangular key is inserted into the lock cylinder, the triangular key is rotated reversely to enable the lock cylinder to rotate, the ejector rod is driven to finish the upward movement, the lock tongue is pushed to rotate, and the door opening action is finished.
Compared with the prior art, the invention has the following advantages and effects:
(1) by designing the effective sliding stroke 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 observation actions are convenient to perform;
(2) at the moment, the lock tongue is not lifted, so that the left door and the right door cannot be continuously pulled after being pulled to a certain distance, and the left door and the right door cannot be continuously pulled to ensure
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, and if a person works in the process of operation
When the elevator leaves the elevator and runs to the landing door position due to failure or misoperation, the left door and the right door are kept closed
The phenomenon of knife collision 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 a manual door, the manual unlocking method for the elevator landing door structure has the advantages that the manual unlocking step is simple, the operation is convenient, the safety is guaranteed, the manual unlocking method is more concentrated on the lock tongue and the connecting part of the lock tongue, the structure of the landing door is slightly changed, and therefore the elevator landing door structure has 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 locking tongue according to an embodiment of the invention.
Fig. 4 is a schematic view of a carriage according to an embodiment of the present invention.
Fig. 5 is a schematic view of a first operating state of the door lock mechanism according to the embodiment of the present invention.
Fig. 6 is a schematic view of a second operation state of the door lock mechanism according to the embodiment of the present invention.
Fig. 7 is a schematic view of a third operating state of the door lock mechanism according to the embodiment of the present invention.
FIG. 8 is a fourth operating condition of the door latch mechanism according to the embodiment of the present invention.
Fig. 9 is a schematic view showing a fifth operating 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 operating condition according to an embodiment of the present invention.
Fig. 11 is a schematic view illustrating the state change of the position-limiting support rod and the blocking piece according to the embodiment of the invention.
Reference numerals: left door 11, right door 12, door frame beam 13, left hanging plate 14, right hanging plate upper 15, latch hook 16, limit spring @ spring 17, first gate ball 18, second gate ball 19, door lock mechanism 2, bolt 21, sliding frame 22, fixing frame 23, sliding groove 24, guide block 25, spring 26, locking piece 3, rotating column 31, guide locking piece 32, first limit block 33, second limit block 34, limit strip 35, baffle 36, baffle plate 41, fixing piece 42, limit support rod 43, first cylindrical part 431, second cylindrical part 432, third cylindrical part 433, manual unlocking mechanism 5, lock core 51, eccentric piece 52, connecting rod 53, ejector rod 54
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
The elevator landing door structure 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 mounted on the door frame beam 13, a latch hook 16 is fixed on the left hanging plate 14, a door lock mechanism 2 is movably mounted on the right hanging plate 15, a limiting spring @ 17 for propping against 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 directions of the first door ball 18 and the second door ball 19 are arranged at an included angle relative 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 designed to be conventional, when a door knife of a car door is tightened, the first door ball 18 and the second door ball 19 can be clamped, so that the first door ball 18 can rotate relative to the rotating shaft of the second door ball 19), a manual unlocking mechanism 5 is arranged on the right door 12, and the door lock mechanism 2 comprises a bolt 21, a sliding frame 22 and a fixed frame 23; a first gate ball 18 and a second gate ball 19 are rotatably mounted on the sliding frame 22, and the sliding frame 22 is rotatably mounted on a fixed frame 23 around a 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 relative to the rotating shaft of the second gate ball 19); the bolt 21 is slidably mounted on the sliding frame 22, so that when the sliding frame 22 rotates around a rotating shaft (in this specification, referred to as a working shaft for short) of the second door knob 19, the bolt 21 can also synchronously rotate, so that the bolt 21 can be disengaged from the locking hook 16 to realize unlocking); the bolt 21 and the sliding frame 22 are respectively connected with two ends of a spring 26; a locking piece 3 for propping against the sliding frame 22 in a sliding-out state is rotatably arranged on the bolt 21; the lock tongue 21 is provided with a sliding groove 24, the sliding frame 22 is fixed with a guide block 25, and the guide block 25 is slidably mounted on the sliding groove 24.
The manual unlocking mechanism 5 is provided with a mandril 54 with vertical movement freedom; as shown in fig. 10, during normal door opening and closing process of the elevator (i.e. during door opening process driven by the 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 push rod 54 completes the downward movement, the restraint of the push rod 54 on the bolt 21 is released, and the restraint is as follows: under the blocking of the mandril 54, the bolt 21 cannot move leftwards, so that the sliding of the bolt 21 relative to the sliding frame 22 cannot be realized, and the bolt 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 in the process, the reset of the lock tongue 21 and the locking piece 3 is realized. Therefore, 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 large gap is generated between the left door 11 and the right door 12 and used for observing the condition inside an elevator shaft, in actual operation, due to poor illumination condition in the elevator shaft, the left door 11 and the right door 12 can obtain a large gap by designing the effective sliding stroke between the lock tongue 21 and the sliding frame 22 by adopting the structure and matching with an electric torch for illumination, and therefore, the actions of polishing and observation are convenient; at this time, the bolt 21 is not lifted, so that the left door 11 and the right door 12 cannot be continuously pulled apart 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 spring 26, if a person leaves the field during operation and the elevator runs to the landing door position due to failure or misoperation, because the left door 12 and the right door 12 are kept closed, the phenomenon of knife collision between the elevator door knife 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, because a certain compression stroke is preset in the initial state of the spring 26 in the embodiment, after the spring 26 is extended, the blocking piece 41 can slide to the lower part of the third cylindrical part 433, the sliding distance of the blocking piece 41 can be small from the design, and the stroke can be adaptively designed according to the clearance between the door knife and the door ball and the assembling 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 rotation range of the guide locking piece 32 are fixed on the bolt 21, the rotating column 31 is rotatably installed on the bolt 21, and a torsion spring for driving the guide locking piece 32 to turn downwards is sleeved on the rotating column 31; sliding mounting has spacing 35 on carriage 22, be fixed with the baffle 36 that is the slope setting on the mount 23, be provided with on carriage 22 with spacing 35 supports the pressure spring on baffle 36 right, and spacing 35's right-hand member supports on baffle 36, and the upper end (relative lower extreme) of baffle 36 leans on left and lower extreme (relative upper end) to lean on the right, and baffle 36 adopts the thinking of arranging is: as shown in fig. 5, the moving track of the point K (where the right end of the limiting strip 35 is located in the initial state) rotating relative to the working shaft refers to an arc line in the relative diagram, and the baffle 36 is obviously deviated and arranged to the right, so that under the action of the pressure spring, the limiting strip 35 slides to the right when rotating, the limiting strip 35 breaks away from the blocking of the end of the guide locking piece 32, and the guide locking piece 32 has the freedom degree of counterclockwise rotation. As shown in fig. 5-9, the locking member 3 has 3 functions at the same time, (1) in the process that the locking tongue 21 slides out relative to the sliding frame 22, the locking tongue is turned out downwards under the action of the torsion spring, and in the process that the locking tongue 21 slides into the sliding frame 22, the locking tongue 21 is abutted against the limit strip 35, so that the locking tongue 21 is prevented from sliding into the sliding frame 22, and therefore, the left door 11 and the right door 12 cannot be separated from each other in the state of keeping the door opened for the first time, and the safety is ensured; (2) the left side of the guide locking sheet 32 is arc-shaped, so that in the upward process of the ejector rod 54, the ejector rod 54 abuts against the guide locking sheet 32 to enable the lock tongue 21 to rotate, when the lock tongue 21 is lifted to a certain stage, the limiting strip 35 is separated from the blocking of the end part of the guide locking sheet 32 (the separation process is as above), the guide locking sheet 32 is separated from the left section of the limiting strip 35, the guide locking sheet 32 rotates anticlockwise, under the pulling of the spring 26, the guide locking sheet 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 sheet 32 until the right side of the ejector rod 54 abuts against the rotating column 31 at the upper end of the guide locking sheet 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 vane is in a state of driving the first door ball 18 to rotate 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, thereby ensuring the normal operation of the elevator. The left end setting of spacing strip 35 has the sunk structure towards the right side, and the sunk structure can make spacing strip 35 more reliable effective to blockking of direction locking piece 32 tip.
The spring 26 is in a compressed state in an initial state, a blocking piece 41 is fixed on the upper edge of the lock tongue 21, a fixing piece 42 is fixed on the right hanging plate 15, a limiting support rod 43 is fixed on the fixing piece 42, the limiting support 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 integrated mode, the fixing piece 42 fixes 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 on the left side of the blocking piece 41, in the normal operation process of the elevator, the elevator door vane drives the first door ball 18 to rotate relative to the rotating shaft of the second door ball 19, and the blocking piece 41 cannot interfere with the third cylindrical part, so that the normal operation is ensured; after the push rod 54 completes the downward movement, after the restraint of the push rod 54 on the lock tongue 21 is released, since the spring 26 is in the compressed state in the initial state, and the lock tongue 21 slides outward for a certain distance, it should be noted that the compressed amount in the compressed state in the initial state is not very large, the distance that the lock tongue 21 can slide outward is also small, and at this time, the third cylindrical portion 433 is located above the catch 41 (as shown in fig. 5 and 11 (a)), so that the lock tongue 21 cannot be pushed to rotate when the push rod 54 moves upward; when the right end of the limiting bar 35 abuts against the stop plate 36, as shown in fig. 7, the third cylindrical portion 433 is located on the right side of the blocking plate 41, so that the ejector rod 54 moves upward at this time, the lock tongue 21 can be pushed to rotate, and when the lock tongue 21 is lifted up to a certain stage, the guide lock piece 32 slides into the sliding frame 22 along with the lock tongue 21 under the pulling of the spring 26, as shown in fig. 9 and (b) of fig. 11, at this time, the blocking plate 41 slides into the position above the third cylindrical portion 433, and then disengages, and returns to the initial state. By adopting the structure, the operator can be ensured not to immediately perform the upward movement of the ejector rod 54 after the downward movement of the ejector rod 54 is completed, and the operator can perform the above movement only after the left door 12 and the right door 12 are opened to a certain degree, thereby ensuring the effectiveness of the movement process to a certain degree.
The manual unlocking mechanism 5 comprises a lock cylinder 51, an eccentric sheet 52, a connecting rod 53 and a push rod 54, wherein the eccentric sheet 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 sheet 52 is driven to rotate, the eccentric sheet 52 and the push rod 54 are respectively hinged to two ends of the connecting rod 53, the push rod 54 is vertically and slidably mounted on the right door 12 plate, a compression spring used for vertically and downwards pushing the push rod 54 is sleeved on the push rod 54, and the compression spring has pressure for vertically and downwards pressing the push rod 54, so that certain resistance needs to be overcome when the triangular key is rotated.
The door opening method of the elevator landing door structure comprises the following steps:
(1) step S1, after the triangular key is inserted into the lock core 51, the triangular key is rotated in the forward direction to rotate the lock core, the mandril 54 is driven to move downwards, and then the restraint of the mandril 54 on the bolt 21 is released;
(2) step S2, after the left door 11 and the right door 12 are opened to a certain distance, the guide locking piece 32 slides outwards to slide out of the limiting bar 35 to abut against the guide locking piece 32, at the moment, the impact sound generated when the guide locking piece 32 rotates to impact the second limiting block 34 is heard, so that a person can carry out observation action, and under the condition of poor light, the inside of a well can be polished through a flashlight, and observation is facilitated;
(3) in step S3, after the key cylinder 51 is inserted into the triangular key, the triangular key is rotated in the reverse direction to rotate the key cylinder, so as to drive the top rod 54 to move upward, push the bolt 21 to rotate, and complete the door opening operation.
Since the latch hook 16 is fixed relative to the left door 11, and the horizontal distance of the top rod 54 relative to the right door 12 is kept constant (the top rod 54 only has the freedom of vertical movement), the distance variation trend of the left and right doors 12 in each state in the present embodiment can be referred to by the marked distance L in the figure.
The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides an elevator layer door structure, includes left door, right door and doorframe 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 doorframe roof beam, be fixed with the latch hook on the left link plate, movable mounting has latch mechanism on the right link plate, is fixed with on the right link plate to be used for withstanding latch mechanism's spacing bullet @ spring is provided with first croquet and second croquet in the latch mechanism, and the relative vertical direction of arranging 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 bolt, a sliding frame and a fixed frame; the sliding frame is rotatably provided with a first gate ball and a second gate ball, and the sliding frame is rotatably arranged on the fixed frame around a rotating shaft of the second gate ball; the lock tongue is slidably arranged on the sliding frame; the lock tongue and the sliding frame are respectively connected with two ends of the spring; a locking piece used for propping the sliding frame in a sliding state is rotatably arranged on the lock tongue; the manual unlocking mechanism is provided with a mandril with vertical movement freedom degree; after the ejector rod finishes downward movement, the constraint of the ejector rod on the lock tongue is removed, 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 in a circular arc shape, a first limiting block and a second limiting block which limit the rotation range of the guide locking piece are fixed on the bolt, the rotating column is rotatably installed on the bolt, and a torsional spring for driving the guide locking piece to overturn downwards is sleeved on the rotating column; sliding mounting has spacing on the carriage, be fixed with the baffle that is the slope setting on the mount, be provided with on the carriage with spacing supports the pressure spring on the baffle right, and spacing right-hand member supports on the baffle, and the upper end of baffle is leaned on left and the lower extreme leans on the right side.
3. The elevator landing door structure of claim 1, wherein: the left end setting of spacing strip has the sunk structure towards the right side.
4. The elevator landing door structure of claim 1, wherein: the spring is in a compressed state in an initial state, a separation blade is fixed on the upper edge of the lock tongue, 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 fixes the end part of the first cylindrical part, the first cylindrical part and the third cylindrical part are arranged horizontally, the second cylindrical part is arranged vertically, and when the door lock mechanism is in the initial state, the third cylindrical part is located on the left side of the separation blade; after the ejector rod finishes downward movement, the lock tongue slides outwards for a certain distance, and the third cylindrical part is positioned above the blocking piece; when the right end of the limiting strip abuts against the baffle, the third cylindrical part is located on the right side of the blocking piece, 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, and the blocking piece slides into the upper part of the third cylindrical part, then breaks away from the sliding frame and returns to the initial state.
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 an ejector rod, wherein the eccentric piece is fixed on a core shaft of the lock cylinder, two ends of the connecting rod are respectively hinged with the eccentric piece and the ejector rod, the ejector rod is vertically and slidably mounted on the right door plate, and a pressure spring used for vertically and downwards pushing the ejector rod is sleeved on the ejector rod.
6. The elevator landing door structure of claim 1, wherein: the spring bolt is provided with a sliding groove, 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 the lock core is inserted into the triangular key, the triangular key is rotated in the forward direction to enable the core shaft to rotate, the ejector rod is driven to complete the downward movement, and then the restraint of the ejector rod on the lock tongue is removed;
(2) step S2, after the left door and the right door are opened to a certain distance, the guide locking piece slides outwards to the limit bar to abut against the guide locking piece;
(3) and step S3, after the lock core is inserted into the triangular key, the triangular key is rotated reversely to rotate the lock core, so that the mandril is driven to move upwards to push the lock tongue to rotate, and the door opening action is completed.
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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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Cited By (1)
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| CN115854629A (en) * | 2022-12-01 | 2023-03-28 | 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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| CN114644280B (en) | 2024-02-20 |
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