CN214835529U - Door lock mechanism of lifting high-speed rail platform door - Google Patents

Abstract

The utility model belongs to the technical field of high-speed railway platform screen doors, and discloses a lifting type high-speed railway platform door lock mechanism, which comprises a lock mounting seat fixedly arranged on a mounting frame, a locking push rod provided with a spring between the lock mounting seat and the lock mounting seat, and at least one hook arranged at the bottom of a lifting door plate, and at least one travel switch used for detecting the action of the locking push rod structure; when the lifting door plate rises to be locked in place, the hook is arranged at the bottom of the lifting door plate, the boss at the top of the hook is extruded and pushed, the clamping head pushes the locking push rod to extrude the spring between the locking mounting seat to realize the back yielding of a small stroke, the boss is released by the restoring force of the spring compressed after the boss at the top of the hook rises, the locking push rod is pushed to the bottom of the hook boss to clamp the action path of the lifting door plate to descend, so that the locking is realized, when the unlocking is needed, the locking motor drives the screw rod to rotate, the sleeve moves along the axial direction of the screw rod, the clamping plate on the sleeve retracts the boss of the hook after the small stroke is realized by the spring between the locking push rod extrusion and the locking mounting seat through the mounting plate, and the unlocking is realized by the action path of the descending of the lifting door plate.

Description

Door lock mechanism of lifting high-speed rail platform door

Technical Field

The utility model belongs to the technical field of the railway platform shield door, especially, relate to over-and-under type high-speed railway platform door latch mechanism.

Background

The platform screen door system is a continuous screen which is arranged at the edge of a platform, isolates a passenger waiting area from a train running area, corresponds to a train door, and can open and close a sliding door in a multi-stage control mode, and generally has the characteristics of full height, half height, sealing and non-sealing, and is called a screen door or a platform door for short. When the train arrives and departs, the platform door can be automatically opened and closed, the driving space and the passenger waiting space are mechanically isolated, and a safe and comfortable waiting environment is created for the passengers.

Due to the factors of wide distribution of transportation lines, long running mileage and the like of high-speed trains and intercity trains in China, the condition that the vehicles entering the station in the same platform run in an online mode and the traditional shielded door in the field of subways is difficult to adapt to the requirements of stopping the trains in various types.

In the prior art, for example, chinese patent publication No. CN104176067A entitled "platform safety door adapted to all train models" discloses a platform safety door structure, in which two sets of sliding door assemblies are installed on the same column in a staggered manner two by two, and the door structure includes a left sliding door and a right sliding door with opposite sliding directions, and after a train arrives at a station and stops stably, the left sliding door of the door structure slides and then overlaps with the right sliding door of the door structure adjacent to the left; after the right sliding door of the door body structure slides, the right sliding door of the door body structure is overlapped with the left sliding door of the right adjacent door body structure, the automobile door position suitable for parking of different automobile types is achieved, however, in the prior art, the scheme adopts the left and right sliding doors to be matched to achieve multi-automobile type adaptability to a certain degree, and the mechanical structure and the control scheme are complex.

As disclosed in chinese patent publication No. CN111762204A entitled "a lifting folding type platform protection device adapted to various vehicle types", a lifting folding type platform protection device adapted to various vehicle types is disclosed, which includes a lifting folding platform door, a pillar, and an end door; a plurality of lifting folding platform doors and upright posts are sequentially and alternately formed into longitudinal platform doors along the longitudinal direction of the track, and both ends of each longitudinal platform door are respectively provided with a transverse end door; the width of each lifting folding platform door is equal, and the sum of the widths of all the lifting folding platform doors accounts for more than 80% of the total length of the longitudinal platform doors; the multi-disc shielding folding piece that folding platform door of going up and down included hinges from top to bottom in proper order, and the both ends of shielding folding piece can slide from top to bottom on the stand of both sides, through folding and the expansion from top to bottom of folding platform door of going up and down, replaces the fixed door and the sliding door of traditional platform door, realizes the shielding function of platform door. However, the lifting folding platform door is vertically arranged above the platform door, so that potential safety hazards of passengers after falling are caused, the platform surface of the platform is always required to be kept with fixed installation and transmission structures due to the limitation of the folding structure, the maximum opening degree of the platform door is always influenced by the structures, and the channel between the platform surface and the train door cannot be opened at will.

Disclosure of Invention

In order to overcome the problems and deficiencies in the prior art, the utility model aims to provide a platform door to over-and-under type structure can be locked automatically to the overhead door unit that rises to the right place through the structure of blocking to realize the automatic unlocking mechanism that locks of automatic unblock under actuating mechanism's drive.

The utility model discloses an automatic locking and unlocking mechanism suitable for lifting platform door, including a lock mount pad fixedly arranged on the mounting bracket, a locking push rod provided with a spring between the lock mount pad, and including at least one hook arranged at the bottom of the lifting door plate and at least one travel switch for detecting the structural action of the locking push rod; the hook is of a plate-shaped structure with a boss at the top, and the back of the hook is attached to the bottom of the lifting door plate; a screw rod unit driven by a locking motor is arranged on the lock mounting seat along a direction perpendicular to the surface of the lifting door plate, the screw rod unit comprises a sleeve with a clamping plate at the head end and a transmission screw rod matched with the sleeve, the tail end of the transmission screw rod is connected with the locking motor in a driving way, and the locking motor drives the screw rod to rotate to drive the sleeve to move along the axial direction of the screw rod; the locking push rod comprises a clamping head of which the front end is used for locking the hook, the clamping head of the locking push rod is inserted into the hook to complete locking, the tail end of the locking push rod is provided with a through hole and a mounting plate sleeved on the sleeve, namely, the locking push rod is slidably arranged on the sleeve along the axial direction of the sleeve through the mounting plate, the size of the clamping plate is larger than that of the through hole, a spring arranged between the locking push rod and the lock mounting seat is in an incompletely compressed state, the elastic force of the spring pushes the locking push rod towards the direction of the lifting door plate surface to enable the clamping plate to be attached to the mounting plate, namely, the clamping plate limits the mounting plate on the sleeve, when the lifting door plate is lifted to the right position and needs to be locked, the hook arranged at the bottom of the lifting door plate is pressed by a boss at the top of the hook, the clamping head pushes the locking push rod to press the spring between the locking push rod and the lock mounting seat to realize the backward movement of a small stroke, and the boss of the hook is retracted, the boss at couple top rises and passes through restoring force release, the push of spring compression behind the locking push rod to couple boss bottom block the action route that the lift door plant descends and realize locking, and on the contrary, when needing the unblock, locking motor drive lead screw is rotatory to be driven the sleeve removes along lead screw axial direction, and the cardboard on the sleeve passes through the boss of letting the couple after the spring realization short stroke between mounting panel pulling locking push rod extrusion and the lock mount pad, lets out the action route that the lift door plant descends and realizes the unblock, and the rotatory drive of locking motor drive lead screw after the lift door plant descends the sleeve resets can.

The upper surface of the boss of the hook is a smooth inclined surface which inclines downwards from one side close to the lifting door panel to the other side; correspondingly, the clamping head of the locking push rod is in a T-shaped tetrahedron structure, one surface of the clamping head of the locking push rod, which faces the lifting door plate, is an inclined surface which is inclined inwards from top to bottom and corresponds to the inclined surface at the top of the hook, that is, when the lifting door plate rises to the highest position, the upper surface of the boss of the hook arranged at the bottom of the lifting door plate and the head end inclined plane of the locking push rod form a wedge-shaped fit, the lifting force is converted into a part of transverse force which pushes the locking push rod to the direction far away from the lifting door plate surface, so that the whole lock mounting seat resists the spring to move backwards, after the boss passes through, the restoring force of the spring drives the whole locking push rod to move forwards to return to the position, and meanwhile, the clamping head which drives the locking push rod is clamped into the bottom of the boss at the top of the hook to complete locking, and the locking motor drives the locking thrust rod to retreat to drive the clamping head to withdraw from the bottom of the boss of the hook during unlocking.

Specifically, be provided with the locking motor mount pad that is used for installing locking motor on the lock mount pad, the transmission lead screw passes a swivel bearing who sets up on the lock mount pad and connects between locking motor and sleeve, and the sleeve head end also passes a swivel bearing setting of setting on the lock mount pad, be provided with two cardboards on the telescopic barrel, the interval of two cardboards is not less than the width of couple top boss, the mounting panel cover of locking push rod is established on the telescopic barrel, between two cardboards, and two cardboards restrict the home range of locking push rod at a reasonable within range through the restriction to the mounting panel promptly, and the transmission lead screw is in the sleeve motion on it of rotation drive in swivel bearing under the drive of locking motor to drive the locking push rod through the cardboard and retreat the action.

Preferably, the two hooks are respectively arranged at equal height positions on two sides of the bottom of the lifting door plate, correspondingly, the locking push rods comprise two U-shaped push rods which are arranged in parallel up and down and connected through a middle connecting plate, and the opening directions of the two U-shaped push rods are opposite; the size of an opening of one U-shaped push rod corresponds to the mounting distance of hooks on two sides of the bottom of the lifting door plate, the two head ends of the U-shaped push rod are provided with the clamping heads, the through hole is arranged on a transverse plate at the tail end of the U-shaped push rod, the through hole is sleeved on the barrel of the sleeve, and namely the transverse plate at the tail end of the U-shaped push rod forms the mounting plate; the head end of another "U" type push rod is the diaphragm, and the diaphragm with set up between the lock mount pad the spring.

The installation frame is provided with a sliding rail perpendicular to the direction of the surface of the lifting door plate, the other U-shaped push rod is arranged on the sliding rail in a sliding mode through a sliding block, namely the U-shaped push rod which is not used as a hook locking structure is arranged on the sliding rail through the sliding block and used for limiting and supporting the motion trail of the whole locking thrust rod, and the travel switch is fixedly arranged on the lock installation seat, corresponds to the height position of the sliding block and is positioned on the trail of the displacement of the sliding block on the sliding rail, namely the sliding block can trigger the travel switch to serve as an action signal when sliding on the sliding rail.

Furthermore, the fixed position of the sliding block and the other U-shaped push rod can be adjusted on the sliding rail.

The transverse plate of the other U-shaped push rod is slidably arranged at the end between the lock mounting seats through a slide rod, the slide rod is perpendicular to the surface direction of the lifting door plate, the slide rod is provided with the spring, and the length of the slide rod is smaller than that of the spring when the spring is not deformed.

More preferably, the lifting door unit is further provided with a manual unlocking mechanism matched with the self-locking mechanism, the manual unlocking mechanism comprises a longitudinal swing rod mechanism arranged along a vertical frame of the lifting door panel and a transverse connecting rod mechanism arranged in a frame at the bottom of the lifting door panel, the lifting door unit is provided with a door lock unit which drives the longitudinal swing rod mechanism to swing through a gear transmission mechanism, and the transverse connecting rod is driven by the longitudinal swing rod mechanism and moves perpendicular to a panel surface of the lifting door panel to push a locking push rod of the self-locking mechanism to leave a hook to realize unlocking.

The longitudinal swing rod mechanism comprises an upper short swing rod and a lower long swing rod, the length of the long swing rod is greater than that of the short swing rod, it needs to be explained that the length and the length of the short swing rod and the long swing rod are relatively speaking, but not specific limitation on the length and the size of the short swing rod and the long swing rod, the two ends of the short swing rod and the long swing rod are both arc-shaped tooth heads, the top end of the long swing rod is in meshing transmission with the arc-shaped tooth head at the bottom end of the short swing rod, the bottom of the long swing rod, which is close to the arc-shaped tooth head at the bottom end of the long swing rod, is hinged and arranged in a vertical frame of the lifting door plate through a rotating shaft seat, and the distance between the hinged point at the bottom of the long swing rod and the arc-shaped tooth head at the bottom of the long swing rod is less than that of the short swing rod; and the transverse connecting rod mechanism is provided with a rack which is meshed with the arc-shaped tooth head at the bottom of the long oscillating bar and the transmission direction of which is vertical to the surface of the lifting door plate.

The transverse connecting rod mechanism comprises a transmission transverse rod and an unlocking transverse rod which is arranged on the transmission transverse rod and is provided with an unlocking head used for pushing a locking push rod of the self-locking mechanism to leave the hook, one end of the transmission transverse rod is slidably arranged on a slide rail at the bottom of a vertical frame of the lifting door panel through a slide block, the direction of the slide rail is perpendicular to the surface of the lifting door panel, and the top of the slide block is provided with a connecting part which is in driving connection with the longitudinal swing rod mechanism.

Has the advantages that:

compared with the prior art, the technical proposal provided by the utility model adopts the structure fixedly arranged between the lock mounting seat and the mounting frame, when the hook ascends along with the lifting door plate to the position of the locking push rod, the boss at the top of the hook extrudes and pushes the chuck, the locking push rod to resist and move backwards the reset spring between the lock mounting seat, the locking push rod of the self-locking mechanism moves towards the direction vertical to the door body pointing to the supporting frame, when the boss at the top of the hook ascends to the stroke limit position through the end of the locking push rod, namely the door body, the reset force of the reset spring pulls the lock mounting seat back to reset and drives the locking push rod to clamp the chuck into the bottom of the boss of the hook to complete the locking of the hook, the lifting door plate position is locked through the mechanical locking structure to realize the stable shielding door structure, when the lifting door plate ascends to the stroke limit position, the travel switch triggered by the locking push rod can be designed on the lock mounting seat and is in joint control with the lifting driving device, when the travel switch is triggered by the lifting driving device to be powered off and stopped, the door plate can be automatically triggered to stop driving while rising to the position, in-place signals can be transmitted to a system control center in an electric signal mode, and a boss at the top of the hook passes through the end of the locking push rod.

When descending, the locking motor drives the ball screw to rotate, the ball screw sliding block drives the locking push rod to overcome resistance and move in the direction perpendicular to the direction of the door body pointing to the supporting frame, the locking push rod retreats to drive the chuck to leave the hook fixed on the door body, so that unlocking of the lifting door body is completed, relative movement between the chuck and the hook is less than the minimum force for driving deformation of the reset spring, therefore, incomplete unlocking due to compression string position of the reset spring caused by moment action is avoided in the whole unlocking process, after unlocking is completed, the door body moves downwards under the self-weight condition and withdraws from the hook to complete unlocking of the hook, integral locking and unlocking actions can be automatically completed, and the locking and unlocking mechanism is convenient to be independently controlled, ensures stability and can provide a use allocation space with high applicability for a platform use environment.

The lock mounting seat is fixedly connected with the mounting frame, only the push rod is movable to realize unlocking and locking, so that a fixed lock structure mounting position can be provided in a limited mounting space, the travel switch can also be mounted on the side edge of the lock mounting seat, and the whole structure is stable and the impact resistance is good.

Drawings

The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:

FIG. 1 is a schematic view of a preferred embodiment of the elevating platform door system of the present invention;

FIG. 2 is a schematic view of the installation structure of the lift gate unit of the present invention;

FIG. 3 is a schematic view of the Z-shaped matching structure of the adjacent lifting door panels of the present invention;

FIG. 4 is a schematic overall view of a preferred embodiment of the lift gate unit of the present invention;

fig. 5 is a schematic view of a preferred embodiment of the driving structure of the lift gate of the present invention;

FIG. 6 is a schematic view of the installation structure of the self-locking mechanism of the present invention;

fig. 7 is a schematic view of a preferred embodiment of the self-locking mechanism of the present invention;

FIG. 8 is a schematic structural view of a sliding installation scheme of the self-locking mechanism lock installation seat of the present invention;

FIG. 9 is a schematic structural view of a fixing and mounting scheme of the self-locking mechanism lock mounting seat of the present invention;

fig. 10 is a schematic structural view of the manual unlocking mechanism of the self-locking mechanism of the present invention;

in the figure:

1. a station; 2. a foundation pit; 3. a mounting frame; 4. a lifting door plate; 5. a horizontal cover plate; 6. a buffer unit; 7. a self-locking mechanism; 8. a mute adhesive tape; 9. a hidden handle; 10. a lifting guide post; 11. a guide post slider; 12. a lift drive; 13. a ball screw; 14. a guide post support; 15. a motor mounting seat; 16. a screw rod slide block; 17. a lock mounting seat; 18. hooking; 19. a travel switch; 20. locking the push rod; 21. locking the motor; 22. clamping a plate; 23. a bearing seat; 24. a sleeve; 25. a reset spring; 26. a short swing link; 27. a long swing link; 28. a transverse linkage mechanism.

Detailed Description

The technical solution for achieving the objectives of the present invention will be further described by using several specific examples, and it should be noted that the technical solution claimed in the present invention includes, but is not limited to, the following examples.

The embodiment discloses a door lock mechanism of a lifting high-speed railway platform door, which comprises a lock mounting seat 17 fixedly arranged on a mounting frame 3, a locking push rod 20 provided with a spring between the lock mounting seat 17 and the lifting high-speed railway platform door, at least one hook 18 arranged at the bottom of a lifting door plate 4 and at least one travel switch 19 used for detecting the structural action of the locking push rod 20, wherein the lifting high-speed railway platform door lock mechanism comprises a first lock mounting seat 17, a second lock mounting seat 17, a first locking push rod and a second lock mounting seat, wherein the first lock mounting seat 17 is fixedly arranged on the mounting frame 3; the hook 18 is of a plate-shaped structure with a boss at the top, and the back of the hook 18 is attached to the bottom of the lifting door panel 4; a screw rod unit driven by a locking motor 21 is arranged on the lock mounting seat 17 along a direction perpendicular to the surface of the lifting door panel 4, the screw rod unit comprises a sleeve 24 with a clamping plate 22 at the head end and a transmission screw rod matched with the sleeve 24, the tail end of the transmission screw rod is connected with the locking motor 21 in a driving way, and the locking motor 21 drives the screw rod to rotate to drive the sleeve 24 to move along the axial direction of the screw rod; the locking push rod 20 comprises a clamping head of which the front end is used for locking the hook 18, the clamping head of the locking push rod 20 is inserted into the hook 18 to complete locking, the tail end of the locking push rod 20 is provided with a through hole and a mounting plate sleeved on the sleeve 24, namely, the locking push rod 20 is slidably arranged on the sleeve 24 along the axial direction of the sleeve 24 through the mounting plate, the size of the clamping plate 22 is larger than that of the through hole, a spring arranged between the locking push rod 20 and the lock mounting seat 17 is in an incomplete compression state, the elastic force of the spring pushes the locking push rod 20 towards the direction of the surface of the lifting door plate 4 to enable the clamping plate 22 to be attached to the mounting plate, namely, the clamping plate 22 limits the mounting plate on the sleeve 24, when the lifting door plate 4 is lifted to a proper position and needs to be locked, the hook 18 arranged at the bottom of the lifting door plate 4 is arranged, the boss at the top of the hook 18 pushes the chuck to push the locking push rod 20 to push the spring between the locking mounting seat 17 to realize the small-stroke back-yielding of the spring through the boss of the hook 18, the boss at the top of the hook 18 rises and is released through the restoring force of the spring compression after the locking push rod 20 rises, the locking push rod 20 is pushed to the bottom of a boss of the hook 18 to block the action path of descending of the lifting door plate 4, so that locking is achieved, conversely, when unlocking is needed, the locking motor 21 drives the screw rod to rotate and drive the sleeve 24 to move along the axial direction of the screw rod, the clamping plate 22 on the sleeve 24 pulls the locking push rod 20 through the mounting plate to extrude the spring between the locking mounting seat 17 and achieve small-stroke retreating, the boss of the hook 18 is passed through, the action path of descending of the lifting door plate 4 is released, unlocking is achieved, and the locking motor 21 drives the screw rod to rotate and drive the sleeve 24 to reset after the descending of the lifting door plate 4.

According to the technical scheme, a structure that the lock mounting seat 17 and the mounting frame 3 are arranged in a sliding mode is adopted, when the hook 18 ascends to the position of the locking push rod 20 along with the lifting door panel 4 during ascending, the boss on the top of the hook 18 extrudes and pushes the clamping head and the locking push rod 20 to resist the movement of the reset spring 25, and the locking push rod 20 of the self-locking mechanism 7 moves towards the direction perpendicular to the direction of the door body pointing to the support frame; when the door body rises to the stroke limiting position, the locking thrust rod 20 extends into the hook 18 under the action of the compression spring at the moment, preferably, the locking door body moves downwards, and simultaneously, the locking thrust rod 20 triggers the stroke switch 19, so that the motor is powered off, the door body moves upwards and stops, and simultaneously, the system is informed that the door is closed in place, after the boss at the top of the hook 18 passes through, the reset force of the reset spring 25 pulls the lock mounting seat 17 back to reset and drives the locking thrust rod 20 to clamp the chuck into the bottom of the boss of the hook 18, and the hook 18 is locked; the resistance of the relative movement between the clamping head and the hook 18 is smaller than the minimum force for driving the deformation of the reset spring 25, when the clamping head and the hook are descended, the locking motor 21 drives the ball screw 13 to rotate, the ball screw 13 slide block drives the locking push rod 20 to move towards the direction perpendicular to the door body and pointing to the supporting frame, the locking push rod 20 leaves the hook 18 fixed on the door body, the door body moves downwards under the condition of self weight, and the locking push rod 20 retreats to drive the clamping head to withdraw from the hook 18 to unlock the hook 18.

The upper surface of the boss of the hook 18 is a smooth inclined surface which inclines downwards from one side close to the lifting door panel 4 to the other side; correspondingly, the clamping head of the locking push rod 20 is in a T-shaped tetrahedron structure, one surface of the clamping head of the locking push rod 20, which faces the lifting door panel 4, is an inclined surface which is inclined inwards from top to bottom and corresponds to the inclined surface at the top of the hook 18, that is, when the lifting door panel 4 is lifted to the highest position, the upper surface of the boss of the hook 18 arranged at the bottom of the lifting door panel 4 forms a wedge-shaped fit with the head end inclined plane of the locking push rod 20, the lifting force is converted into a part of transverse force which pushes the locking push rod 20 away from the face direction of the lifting door panel 4, so that the whole lock mounting seat 17 resists the backward movement of the spring, after the boss passes through, the restoring force of the spring drives the whole locking push rod 20 to move forward to the restoring position, meanwhile, the clamping head driving the locking push rod 20 is clamped into the bottom of the boss at the top of the hook 18 to complete locking, and the locking motor 21 drives the locking thrust rod 20 to retreat to drive the clamping head to withdraw from the bottom of the boss of the hook 18 during unlocking.

Specifically, the lock mounting seat 17 is provided with a locking motor 21 mounting seat 15 for mounting a locking motor 21, the transmission screw rod is connected between the locking motor 21 and the sleeve 24 through a rotary bearing arranged on the lock mounting seat 17, the head end of the sleeve 24 is also arranged through a rotary bearing arranged on the lock mounting seat 17, the cylinder body of the sleeve 24 is provided with two clamping plates 22, the distance between the two clamping plates 22 is not less than the width of the lug boss at the top of the hook 18, the mounting plate of the locking push rod 20 is sleeved on the cylinder body of the sleeve 24 and between the two clamping plates 22, namely, the two clamping plates 22 limit the moving range of the locking push rod 20 within a reasonable range through limiting the mounting plate, the transmission screw rod rotates in the rotary bearing to drive the sleeve 24 thereon to move under the driving of the locking motor 21, and the clamping plates 22 drive the locking push rod 20 to retreat.

Preferably, two hooks 18 are respectively arranged at equal height positions on two sides of the bottom of the lifting door panel 4, correspondingly, the locking push rod 20 comprises two U-shaped push rods which are arranged in parallel up and down and connected through a middle connecting plate, and the opening directions of the two U-shaped push rods are opposite; the opening size of one U-shaped push rod corresponds to the mounting distance of the hooks 18 at two sides of the bottom of the lifting door plate 4, the two head ends of the U-shaped push rod are respectively provided with the clamping heads, the through hole is arranged on the transverse plate at the tail end of the U-shaped push rod in a sleeved mode, the through hole is arranged on the barrel body of the sleeve 24 in a sleeved mode, and namely the transverse plate at the tail end of the U-shaped push rod forms the mounting plate; the head end of another "U" type push rod is the diaphragm, and the diaphragm with set up between the lock mount pad 17 the spring.

The mounting bracket 3 is provided with a slide rail perpendicular to the surface direction of the lifting door panel 4, the other U-shaped push rod is slidably arranged on the slide rail through a slide block, namely, the U-shaped push rod which is not used as a locking structure for the hook 18 is arranged on the slide rail through the slide block and is used for limiting and supporting the motion track of the whole locking push rod 20, the travel switch 19 is fixedly arranged on the lock mounting seat 17, corresponds to the height position of the slide block and is positioned on the track of the displacement of the slide block on the slide rail, namely, the slide block slides on the slide rail to trigger the travel switch 19 as an action signal.

Furthermore, the fixed position of the sliding block and the other U-shaped push rod can be adjusted on the sliding rail.

The transverse plate of the other U-shaped push rod is slidably arranged at the end between the lock mounting seats 17 through a slide rod, the slide rod is perpendicular to the surface direction of the lifting door plate 4, the slide rod is provided with the spring, and the length of the slide rod is smaller than that of the spring when the spring is not deformed.

More preferably, as shown in fig. 10, a manual unlocking mechanism matched with the self-locking mechanism 7 is further disposed in the lifting door unit, and includes a longitudinal swing link mechanism disposed along a vertical frame of the lifting door panel 4, and a transverse link mechanism 28 disposed in a frame at the bottom of the lifting door panel 4, a door lock unit for driving the longitudinal swing link mechanism to swing through a gear transmission mechanism is disposed on the lifting door unit, and the transverse link mechanism is driven by the longitudinal swing link mechanism to move perpendicular to the panel surface of the lifting door panel 4 to push a locking push rod 20 of the self-locking mechanism 7 to leave the hook 18 to unlock the door.

The longitudinal swing link mechanism comprises an upper short swing link 26 and a lower long swing link 27, the length of the long swing link 27 is greater than that of the short swing link 26, it should be noted that the length and the length of the short swing link 26 and the long swing link 27 are relatively speaking, but not specifically limiting the length dimension of the short swing link and the long swing link 27, both ends of the short swing link 26 and the long swing link 27 are arc-shaped tooth heads, the top end of the long swing link 27 is in meshing transmission with the arc-shaped tooth head at the bottom end of the short swing link 26, the bottom of the long swing link 27 close to the arc-shaped tooth head at the bottom end of the long swing link 27 is hinged and arranged in a vertical frame of the lifting door panel 4 through a rotating shaft seat, and the distance between the hinged point at the bottom of the long swing link 27 and the arc-shaped tooth head at the bottom of the long swing link is less than that of the short swing link 26; the transverse link mechanism 28 is provided with a rack which is engaged with the arc-shaped tooth head at the bottom of the long swing rod 27 and the transmission direction of which is vertical to the surface of the lifting door panel 4.

The transverse link mechanism 28 comprises a transmission cross rod and an unlocking cross rod which is arranged on the transmission cross rod and is provided with an unlocking head used for pushing the locking push rod 20 of the self-locking mechanism 7 to leave the hook 18, one end of the transmission cross rod is slidably arranged on a slide rail at the bottom of a vertical frame of the lifting door panel 4 through a slide block, the direction of the slide rail is perpendicular to the surface of the lifting door panel 4, and the top of the slide block is provided with a connecting part which is in driving connection with the longitudinal swing rod mechanism.

Further, the lock unit is including setting up at the door lock triangulation chain that goes up and down door plant 4 towards track one side to and set up at the handle that goes up and down door plant 4 towards 1 one side of platform, door lock triangulation chain and handle all with gear drive transmission is connected, rotates door lock triangulation chain and/or handle drive gear drive mechanism rotate.

The handle is rotatably arranged on the vertical frame of the lifting door panel 4 through a rotating shaft, the tail end of the rotating shaft is a gear coaxial with the rotating shaft, a lock catch used for locking the rotating shaft is arranged in the middle of the rotating shaft, and a lock hole of the lock catch is exposed out of one end of the rotating shaft connected with the handle.

The gear transmission mechanism comprises at least two conical gears which are respectively used for rotating coaxially with the door lock triangular lock and the handle and moving synchronously, correspondingly, an arc-shaped tooth head which is in meshing transmission with the conical gears of the gear transmission mechanism is arranged at the top of the longitudinal swing rod mechanism, and the door lock triangular lock and/or the handle transmit rotating force to the arc-shaped tooth head through the conical gears and drive the longitudinal swing rod mechanism to swing.

The transverse link mechanism 28 comprises a transmission cross rod and an unlocking cross rod which is arranged on the transmission cross rod and is provided with an unlocking head used for pushing the locking push rod 20 of the self-locking mechanism 7 to leave the hook 18, one end of the transmission cross rod is slidably arranged on a slide rail at the bottom of a vertical frame of the lifting door panel 4 through a slide block, the direction of the slide rail is perpendicular to the surface of the lifting door panel 4, and the top of the slide block is provided with a connecting part which is in driving connection with the longitudinal swing rod mechanism.

An opening through which the unlocking head passes and which is in contact with the locking push rod 20 is formed in the hook 18, and an opening is also formed in a position corresponding to the bottom frame of the lifting door panel 4.

The key inserts the lockhole promptly, twist and move the lockhole and drive gear drive mechanism rotatory, gear drive mechanism drives pendulum rod mechanism, pendulum rod mechanism passes through the rack and drives the slider, the slider drives horizontal connecting rod, horizontal connecting rod drives U type push rod and moves to the internal side of door, U type push rod is with the ejecting couple 18 of U type push rod, the door body downstream under the action of gravity this moment, self-locking (unblock) mechanism resets simultaneously, when the door body was close the bottom position, the door body will receive the spring on the bottom guide pillar and be fixed in the attenuator resistance effect on the braced frame, make the door body descending motion obtain the buffering, the door body motion stops.

Or, manual unlocking mechanism is including setting up the lock on lift door plant 4 to and set up in the frame of lift door plant 4 bottom, by the horizontal push rod mechanism of drive unit drive along the direction motion of the 4 face of perpendicular to lift door plant, horizontal connecting rod is in drive unit's drive pushes down locking push rod 20 of self-locking mechanism 7 leaves couple 18 and realizes the unblock, drive unit's switch with the lock joint control.

More specifically, the utility model discloses an over-and-under type platform door system that this kind of technical scheme was suitable for, including the control unit, communication unit to and as figure 1 a plurality of overhead door units that set up side by side, the setting of overhead door unit liftable is being close to 1 edge of platform, along the length direction in predetermineeing foundation ditch 2 that sets up, and the both sides of overhead door unit just correspond platform 1 side and track side promptly, and the overhead door unit can constitute the isolation between track and platform 1, the control unit passes through communication unit control each the automatic action control is realized in the lift action of overhead door unit.

As shown in fig. 2 and 4, the lifting door unit includes a mounting frame 3 fixedly disposed in the foundation pit 2, a lifting door panel 4 vertically arranged on the mounting frame 3 in a lifting manner through a lifting driving unit, and a self-locking mechanism 7 of the present invention for locking the lifting door panel 4 lifted in place on the mounting frame 3, i.e. the lifting door panel 4 can be lifted to a corresponding height according to the door opening degree requirement, and can be automatically locked to ensure safety and stability after being lifted in place; the installation frame 3 is completely arranged in the foundation pit 2, the bottom of the installation frame 3 is fixedly connected with the foundation pit 2, an openable horizontal cover plate 5 is arranged at the top of the installation frame 3, when the horizontal cover plate 5 is closed, the pit opening of the foundation pit 2 and the part except a channel for lifting the lifting door panel 4 are sealed, and the horizontal cover plate 5 is flush with the platform 1 after being closed, namely the lifting door unit is hidden and installed in the foundation pit 2, under the condition that the lifting door unit is not needed, the whole lifting door unit can completely descend to the foundation pit 2, the pit opening of the foundation pit 2 is flush with the platform 1 plane through the sealing cover of the horizontal cover plate 5, the safety is ensured while the traffic use is convenient, the platform 1 is flush with the ground after the lifting door unit completely descends, and the rapid operation can be realized by opening the horizontal cover plate 5 when the lifting door unit is maintained, installed or disassembled; when the lifting door plates 4 of a plurality of adjacent lifting door units are lifted to the highest position from the foundation pit 2, the parts above the ground level of the platform 1 form shielding doors which are connected end to end; the lifting door plate 4 of the lifting door unit can completely descend into the foundation pit 2, and correspondingly, when the lifting door plate 4 ascends to the highest position of the mounting rack 3, the plate bodies of the lifting door plate 4 are all positioned above the plane of the platform 1; the self-locking mechanism 7 is in communication connection with the control unit through the communication unit, namely the self-locking mechanism can also provide a lifting in-place signal and a descending state signal for the control unit, and can also finish automatic unlocking and releasing of a descending channel of the lifting door panel 4 according to a control signal of the control unit.

Preferably, in the lift door unit, still include through communication unit with the control unit signal links to each other, be used for detecting respectively lift door plant 4 rises to target in place and descends to target in place the spacing detecting element of action to and set up the buffer unit 6 that rises to target in place and descend to target in place position at lift door plant 4, the spacing detecting element of action is used for detecting the lift door plant 4 and goes up to target in place the condition, provides control signal for the control unit, and buffer unit 6 sets up and can alleviate the release lift door plant 4 the decline overspeed that probably appears or the brake inefficacy time and the momentum between the bottom.

Further, the size of all overhead door units, the shape, and the size of lift door plant 4, shape and lift stroke all are the same, and all overhead door units set up side by side in foundation ditch 2, as shown in fig. 3, the adjacent side of the lift door plant 4 of two adjacent overhead door units forms "Z" style of calligraphy cooperation structure, and the side of lift door plant 4, "Z" style of calligraphy cooperation structure's clearance department is provided with silence adhesive tape 8, can eliminate the clearance through "Z" style of calligraphy cooperation structure between two adjacent lift door plants 4 promptly, and "Z" style of calligraphy cooperation structure can also let between the lift door plant 4 constitute the guide rail spacing of going up and down mutually in the above 1 mesa of platform, avoid appearing the condition that the door plant is not aligned because of external force interference, lead to appearing the crack clearance that probably hurts the people between the door plant.

Preferably, the lifting door panels 4 of the lifting door units are arranged on the side close to the rails, ensuring that as large a width as possible will flow out for the platform 1.

More preferably, the width of the horizontal cover plate 5 is not less than the width of the foundation pit 2, and it can be enough to cover the entire pit opening of the foundation pit 2, and the horizontal cover plate 5 is a metal cover plate which can provide enough strength and durability, one side of the horizontal cover plate 5 is hinged with the mounting frame 3, the other side of the horizontal cover plate 5 is provided with a hidden handle 9, when needing to be opened, the horizontal cover plate 5 is pulled up by the hidden handle 9 and overturned to open around the hinged side, and the upper surface of the horizontal cover plate 5 is provided with an anti-skid protrusion which forms a part of the plane of the platform 1 when the horizontal cover plate 5 is closed, so as to provide enough friction for pedestrians to avoid wet skid.

Further, mounting bracket 3 is metal system frame construction, and the bottom of mounting bracket 3 is provided with the mounting panel, and the mounting panel passes through the inflation screw fixation in 2 bottoms in foundation ditch, and metal system frame construction is solid for not necessary, as long as the material satisfies the strength requirement, but compromise the hollow tubular metal resonator of optional when lightweight.

Specifically, as shown in fig. 5, the lifting driving unit includes a lifting guide pillar 10 vertically disposed on the mounting frame 3, a guide pillar slider 11 for connecting with a plate body of the lifting door panel 4 is slidably disposed on the lifting guide pillar 10, and a lifting driving device 12 for driving the lifting door panel 4 to move up and down on the lifting guide pillar 10 through the guide pillar slider 11; the guide post sliding block 11 is fixedly connected with the bottom of the lifting door panel 4, the lifting door panel 4 is arranged on the lifting guide post 10 in a lifting and sliding mode through the guide post sliding block 11, the movement track of the lifting door panel 4 is limited by the cooperation between the guide post and the guide post sliding block 11, and support and guide are provided for the movement of the lifting door panel 4 in the vertical direction.

Preferably, the lifting driving device 12 is a hydraulic or pneumatic telescopic rod unit, or a ball screw 13 driven by a lifting motor to rotate, that is, various structures for providing lifting driving force may be adopted, the hydraulic or pneumatic telescopic rod unit may rapidly achieve lifting, and multiple groups of control may be achieved by combining pressure pipes and pipe valve arrangements, a more stable lifting force may be provided by using the ball screw 13, and the height position adjustable range of the lifting door panel 4 is also wider.

Preferably, there are two lifting guide pillars 10 of each lifting driving unit, at least one slider is disposed on each lifting guide pillar 10, and the two lifting guide pillars 10 are parallel, equal in height and vertical to each other on two sides of the mounting rack 3 through the guide pillar supports 14, and the guide pillar sliders 11 of the two lifting guide pillars 10 are equal in height and fixed to two ends of the bottom of the lifting door panel 4, that is, the two guide pillars define a lifting channel of the lifting door panel 4, the two sides are disposed to provide a more stable structure, and the guide pillar sliders 11 of the two lifting guide pillars 10 are equal in height and fixed to two ends of the bottom of the lifting door panel 4, and as the guide pillar sliders 11 rise to the highest positions of the guide pillars, the lifting door panel 4 also rises to the right position.

For example, the lifting driving device 12 is a ball screw 13 driven by a lifting motor to rotate, the ball screw 13 is arranged parallel to the lifting guide pillar 10, and the length of the ball screw 13 is not longer than that of the lifting guide pillar 10, the lifting motor is fixedly arranged at the bottom of the mounting frame 3 or in the foundation pit 2 through a motor mounting seat 15 at the bottom, a screw slider 16 matched with the ball screw 13 is arranged at the bottom of the lifting door panel 4, and the lifting motor drives the ball screw 13 to rotate and drives the lifting door panel 4 to lift along the lifting guide pillar 10 through the screw slider 16. Furthermore, two lifting guide columns 10 of each lifting driving unit are arranged, the two lifting guide columns 10 are arranged on two sides of the mounting frame 3 in parallel, at the same height and vertically through guide column supports 14 at the bottom, the ball screw 13 is located in the middle of the two guide columns and limited to the fixed position on the mounting frame 3 through a thrust cylindrical roller bearing seat, and correspondingly, a ball screw 13 slider is arranged at the bottom of the lifting door panel 4 and in the middle of the two guide column sliders 11.

For another example, the lifting driving device 12 is a hydraulic or pneumatic telescopic rod unit, the telescopic rod unit includes a hydraulic or pneumatic power source and a telescopic cylinder with a telescopic rod, the telescopic cylinder is fixedly arranged at the bottom of the mounting frame 3 or in the foundation pit 2 through a mounting seat at the bottom, the bottom of the lifting door panel 4 is fixedly connected with the front end of the telescopic rod in the extending direction, the hydraulic or pneumatic power source is connected with the telescopic cylinder through a closed pressure pipeline with an electromagnetic valve, and the telescopic cylinder provides pressure to drive the telescopic rod to drive the lifting door panel 4 to move up and down through the hydraulic or pneumatic power source.

Furthermore, the lifting door panel 4 comprises a door panel frame and a transparent and/or hollow panel in the middle of the door panel frame, the guide pillar slider 11 is fixed with a frame at the bottom of the lifting door panel 4, the lifting door panel 4 is vertical, and can be set on the lifting guide pillar 10 through the guide pillar slider 11 in a lifting motion manner, and the transparent and/or hollow panel in the middle of the lifting door panel 4 is convenient for people at the side of the platform 1 to observe the condition of the rail side.

Preferably, as the preferable structure scheme of the horizontal cover plate 5, at least one embedded rotating handle is arranged at the top of the lifting door plate 4, and when the lifting door plate 4 needs to be lifted manually, the embedded rotating handle is rotated out, so that the lifting door plate 4 can be lifted.

Correspondingly, the utility model also provides a control method of the lifting platform door suitable for the rail transit platform 1, which comprises the following initialization step, train information acquisition step and platform door lifting step;

before or after the platform door is used, the control unit sends a control signal to the lifting door group through the communication unit, lifting door plates 4 of all lifting door units in the lifting door group are lifted in place and locked by the self-locking mechanism 7, so that the lifting door plates 4 of all lifting door units in the lifting door group form a shielding door between the platform 1 and the track, and the signals of the lifting door plates 4 lifted in place are fed back to the control unit through the communication unit by the lifting door group to complete initialization;

the train information acquisition step is to acquire information of a train to be parked and stopped, and obtain information of a parking position, a parked train door position and a door opening width of the train according to the information of the train;

in the platform door lifting step, when a train enters and stops in place, the control unit controls the lifting door units corresponding to the positions of the parked train doors and having overlapped width positions and door opening widths to unlock the lifting door plates 4 according to the train information, and controls the lifting door plates 4 to descend in place to form a train getting-on and getting-off channel between the platform 1 and the train, and meanwhile, the lifting door groups feed back signals of the lifting door plates 4 of the lifting door units to the control unit through the communication unit; and after the train is closed, initializing the lifting door group according to the initialization step.

Specifically, the platform door lifting step is completed in a time period when the train enters the station and stops in place but the train door is not opened.

Further, in the platform door lifting step, a lifting door panel 4 falling in place detection step is further included, specifically, after the lifting door group feeds back a signal of the lifting door panel 4 of the lifting door unit falling in place to the control unit through the communication unit, the control unit compares the fed back signal with the control signal, detects and checks whether the lifting door unit falling in place is not fed back, and feeds back information of the lifting door unit falling in place which is not fed back to the platform 1 staff and the train crew members.

Preferably, the staff at the platform 1 finds the corresponding lift door unit on the platform 1 according to the information of the lift door unit which is not fed back to descend to the right position, and manually unlocks the lift door panel 4 at one side of the platform 1 through a handle of a manual unlocking mechanism matched with the self-locking mechanism 7.

Or the train crew finds the car door corresponding to the position of the lifting door unit according to the information of the lifting door unit which is not fed back and falls in place, and after the train opens the car door, the train crew manually unlocks the lifting door plate 4 on one side of the track through the door lock triangle lock of the manual unlocking mechanism matched with the self-locking mechanism 7.

Claims (10)

1. Over-and-under type high-speed railway platform door latch mechanism, its characterized in that: the lifting door lock comprises a lock mounting seat (17) fixedly arranged on a mounting frame (3), a locking push rod (20) with a spring arranged between the lock mounting seat (17), at least one hook (18) arranged at the bottom of a lifting door panel (4) and at least one travel switch (19) for detecting the structural action of the locking push rod (20); the hook (18) is of a plate-shaped structure with a boss at the top, and the back of the hook (18) is attached to the bottom of the lifting door panel (4); a screw rod unit driven by a locking motor (21) is arranged on the lock mounting seat (17) along a direction perpendicular to the surface of the lifting door panel (4), the screw rod unit comprises a sleeve (24) with a clamping plate (22) at the head end and a transmission screw rod matched with the sleeve (24), the tail end of the transmission screw rod is connected with the locking motor (21) in a driving way, and the locking motor (21) drives the screw rod to rotate to drive the sleeve (24) to move along the axial direction of the screw rod; locking push rod (20) include that the front end is used for right couple (18) carry out the dop of locking, the dop of locking push rod (20) inserts locking is accomplished in couple (18), and the end of locking push rod (20) is provided with has seted up the through-hole, is used for the cover to establish mounting panel on sleeve (24), promptly locking push rod (20) pass through the mounting panel on sleeve (24) along sleeve (24) axial direction slidable setting, cardboard (22) size is greater than the through-hole, and locking push rod (20) with the spring that sets up between lock mount pad (17) is in the complete compression state of not, and the elastic force of spring will locking push rod (20) push up to the direction of lift door plant (4) face, make cardboard (22) with the mounting panel laminating.

2. The elevating high-speed rail platform door lock mechanism of claim 1, wherein: the upper surface of the boss of the hook (18) is a smooth inclined surface which inclines downwards from one side close to the lifting door panel (4) to the other side; correspondingly, the clamping head of the locking push rod (20) is of a T-shaped tetrahedron structure, and one surface, facing the lifting door plate (4), of the clamping head of the locking push rod (20) is an inclined surface inclined inwards from top to bottom and corresponds to the inclined surface at the top of the hook (18).

3. The elevating high-speed rail platform door lock mechanism of claim 1, wherein: the lock mounting seat (17) is provided with a locking motor (21) mounting seat (15) for mounting a locking motor (21), the transmission screw rod penetrates through a rotary bearing arranged on the lock mounting seat (17) and is connected between the locking motor (21) and a sleeve (24), the head end of the sleeve (24) also penetrates through a rotary bearing arranged on the lock mounting seat (17), a cylinder body of the sleeve (24) is provided with two clamping plates (22), the distance between the two clamping plates (22) is not less than the width of a boss at the top of the hook (18), a mounting plate of the locking push rod (20) is sleeved on the cylinder body of the sleeve (24) and between the two clamping plates (22), namely the two clamping plates (22) limit the moving range of the locking push rod (20) within a reasonable range through limiting the mounting plate, and the transmission screw rod is driven by the locking motor (21) to rotate in the rotary bearing to drive the sleeve (24) on the locking push rod to move, and the locking push rod (20) is driven to move backwards through the clamping plate (22).

4. The elevating high-speed rail platform door lock mechanism as set forth in claim 1 or 3, wherein: the two hooks (18) are respectively arranged at equal height positions on two sides of the bottom of the lifting door panel (4), correspondingly, the locking push rods (20) comprise two U-shaped push rods which are arranged in parallel up and down and connected through a middle connecting plate, and the opening directions of the two U-shaped push rods are opposite; the opening size of one U-shaped push rod corresponds to the mounting distance of hooks (18) on two sides of the bottom of a lifting door panel (4), the two head ends of the U-shaped push rod are respectively provided with the clamping heads, the through hole is arranged on a transverse plate at the tail end of the U-shaped push rod, the through hole is sleeved on the barrel body of the sleeve (24), namely the transverse plate at the tail end of the U-shaped push rod forms the mounting plate; the head end of the other U-shaped push rod is a transverse plate, and the spring is arranged between the transverse plate and the lock mounting seat (17).

5. The elevating high-speed rail platform door lock mechanism of claim 4, wherein: the lifting door plate is characterized in that a sliding rail perpendicular to the surface direction of the lifting door plate (4) is arranged on the mounting rack (3), the other U-shaped push rod is arranged on the sliding rail in a sliding mode through a sliding block, the travel switch (19) is fixedly arranged on the lock mounting seat (17), corresponds to the height position of the sliding block, and is located on the displacement track of the sliding block on the sliding rail.

6. The elevating high-speed rail platform door lock mechanism of claim 5, wherein: the fixed positions of the sliding block and the other U-shaped push rod are adjustable on the sliding rail.

7. The elevating high-speed rail platform door lock mechanism of claim 5, wherein: the transverse plate of the other U-shaped push rod is slidably arranged at the end between the lock mounting seats (17) through a slide rod, the slide rod is perpendicular to the surface direction of the lifting door plate (4), the slide rod is provided with the spring, and the length of the slide rod is smaller than the length of the spring when the spring is not deformed.

8. The elevating high-speed rail platform door lock mechanism of claim 1, wherein: the automatic unlocking device is characterized by further comprising a manual unlocking mechanism, wherein the manual unlocking mechanism comprises a longitudinal swing rod mechanism and a transverse connecting rod mechanism (28), the longitudinal swing rod mechanism is arranged along the vertical frame of the lifting door panel (4), the transverse connecting rod mechanism is arranged in the frame at the bottom of the lifting door panel (4), the lifting door unit is provided with a door lock unit, the door lock unit drives the longitudinal swing rod mechanism to swing through a gear transmission mechanism, and the transverse connecting rod is driven by the longitudinal swing rod mechanism and is perpendicular to the panel surface of the lifting door panel (4) to move to push a locking push rod (20) of the self-locking mechanism (7) to leave the hook (18) to realize unlocking.

9. The elevating high-speed rail platform door lock mechanism of claim 8, wherein: the longitudinal swing rod mechanism comprises a short swing rod (26) above and a long swing rod (27) which is placed downwards, the length of the long swing rod (27) is larger than that of the short swing rod (26), both ends of the short swing rod (26) and the long swing rod (27) are arc-shaped tooth heads, the top end of the long swing rod (27) is in meshing transmission with the arc-shaped tooth head at the bottom end of the short swing rod (26), the part, close to the arc-shaped tooth head at the bottom end, of the bottom of the long swing rod (27) is hinged to a vertical frame of the lifting door panel (4) through a rotating shaft seat, and the distance between a hinged point at the bottom of the long swing rod (27) and the arc-shaped tooth head at the bottom of the long swing rod is smaller than that of the short swing rod (26); and a rack which is meshed with the arc-shaped tooth head at the bottom of the long swing rod (27) and the transmission direction of which is vertical to the surface of the lifting door panel (4) is arranged on the transverse connecting rod mechanism (28).

10. The elevating high-speed rail platform door lock mechanism as set forth in claim 8 or 9, wherein: the transverse connecting rod mechanism (28) comprises a transmission transverse rod and an unlocking transverse rod arranged on the transmission transverse rod and provided with an unlocking head used for pushing a locking push rod (20) of the self-locking mechanism (7) to leave the hook (18), one end of the transmission transverse rod is arranged on a sliding rail at the bottom of a vertical frame of the lifting door panel (4) in a sliding mode through a sliding block, the direction of the sliding rail is perpendicular to the surface of the lifting door panel (4), and the top of the sliding block is provided with a connecting part connected with the vertical oscillating rod mechanism in a driving mode.

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