CN109798030B - Platform screen door manual unlocking device - Google Patents

Abstract

The invention discloses a manual unlocking device for a platform screen door, comprising: a manual unlocking module and a key unlocking module, the manual unlocking module is used to open the screen door on the track side, and includes a handle unlocking assembly, an upper fixing assembly and an upper unlocking top The upper end of the upper unlocking push rod is connected to the upper fixing assembly, and the lower end is connected to the handle unlocking assembly. The handle unlocking assembly includes a housing and a handle. The handle is hinged on one side of the housing through a rotating shaft. The other side of the body is equipped with a worm assembly, one end of the rotating shaft is connected to one end of the worm assembly through a connecting plate, and the other end of the worm assembly is connected to the upper unlocking jack rod; the key unlocking module is arranged below the manual unlocking module to Open the screen door on the platform side, which includes a lower unlocking jack, a lower fixing assembly and a lock cylinder assembly. The lower fixing assembly is sleeved on the lower unlocking jack. The assembly is connected, and its upper end is connected with the worm assembly.

Description

Platform screen door manual unlocking device

technical field

The invention relates to a door unlocking mechanism, in particular to a manual unlocking device for a platform screen door.

Background technique

With the continuous development of the national economy, public transportation, especially subway construction, has been extensively developed, and many large cities are developing subway construction. However, in order to ensure the safety of passengers, a screen door system is installed on the edge of the platform to isolate the station platform from the driving tunnel area, so as to reduce the energy consumption of the station’s air conditioning and ventilation system, reduce the impact of train running noise and piston wind on the station, and provide passengers with Safe and comfortable waiting environment. At the same time, it also prevents passengers on the platform from falling into the track due to carelessness or crowding, causing harm to passengers and affecting the normal operation of the train. Among them, the platform sliding door corresponding to the train door is the only door for passengers to get on and off the train, and it is required to be safe and reliable. Under normal circumstances, the opening and closing of the platform sliding door is realized by the motor drive and control system. In the case of special circumstances (such as power failure or other system failures), the motor drive system and control system cannot be used to open the platform sliding door. Therefore, in order to protect the safety of customers getting on and off the bus, a manual unlocking device for the platform screen door is needed. Passengers can open the screen door to leave the compartment in an emergency.

In view of this, it is necessary to provide a manual unlocking device for the platform screen door so that the platform screen door can be opened on the track side and the platform screen door can be opened on the platform side.

Contents of the invention

The technical problem to be solved by the present invention is to provide a manual unlocking device for a platform screen door, which can not only open the platform screen door on the track side, but also open the platform screen door on the platform side.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a manual unlocking device for a platform screen door, which is installed in the mullion of the platform screen door, and includes a manual unlocking module and a key unlocking module; the manual unlocking module Used to open the platform screen door on the track side, it includes a handle unlocking component, an upper fixing component and an upper unlocking push rod, the upper end of the upper unlocking push rod is connected with the upper fixing component and moves up and down along the upper fixing component , the lower end of which is connected to the handle unlocking assembly, the handle unlocking assembly includes a housing, a handle and a worm assembly, the housing is fixed in the mullion, and the handle is hinged to the body of the housing through a rotating shaft On one side, the worm assembly is installed on the other side of the housing, one end of the rotating shaft is connected to one end of the worm assembly through a connecting plate, and the lower end of the upper unlocking push rod is connected to the worm assembly The other end of the upper unlocking rod is connected with the handle of the handle unlocking assembly to move up and down; the key unlocking module is used to open the platform screen door on the platform side, which is arranged on the manual unlocking module The bottom of the bottom includes a lower unlocking push rod, a lower fixing assembly and a lock cylinder assembly. The core assembly is connected, and its upper end is connected with one end of the worm assembly and abuts against the lower end of the upper unlocking push rod, so that the lower unlocking push rod is connected with the key inserted into the key hole of the lock cylinder assembly. The operation is linked to move up and down.

Its further technical solution is: the worm assembly includes a worm and a worm sleeve, both of the worm sleeve and the worm have a hollow main body structure, the worm sleeve is arranged on the other side of the housing, and the worm passes through In the inner hole of the worm sleeve, a protrusion is formed on one side of the worm, and a spiral groove for sliding the protrusion is formed on the side of the worm sleeve away from the housing, and the worm sleeve is close to the housing. A linear guide groove is formed on one side of the body, and the worm sleeve is connected with the housing through the linear guide groove, so that the worm sleeve can move up and down relative to the housing, and the lower end of the upper unlocking push rod is arranged on the The upper end of the lower unlocking push rod is arranged in the worm and located at the lower end of the worm.

Its further technical solution is: the worm assembly also includes a support plate, the support plate is bent along the middle to form a first folded plate and a second folded plate, the first folded plate is arranged on the housing and It is provided with a positioning hole for the fixing piece to pass through, so as to fix the handle unlocking assembly in the mullion of the platform screen door through the fixing piece; the second folding plate is arranged opposite to the lower end surface of the worm and on Correspondingly, a through hole for the worm to pass through is provided, and the lower end of the worm passes through the through hole of the connecting plate and passes through a shaft sleeve in the through hole.

Its further technical solution is: the lower end of the worm is covered with a torsion spring, and the lower end of the torsion spring is in contact with the connecting plate.

Its further technical solution is: the upper fixing component includes a bracket and a spring, the bracket includes a main board, the main board is connected to the mullion to be arranged in the mullion, and its upper end is facing away from the mullion A baffle is formed extending in the direction of the baffle, and a perforation hole is formed on the baffle for the upper unlocking push rod to pass through. The upper end of the upper unlocking push rod passes through the perforation hole and a top end is fixed Lock bracket; the spring is sheathed on the upper end of the upper unlocking push rod, and one end of the spring abuts against the baffle, and the other end is connected to a spring seat, and the spring seat is arranged on the main board A flange is formed on the side close to the main board. The main board is formed with a chute for the flange to be inserted and slide up and down. The upper unlocking push rod passes through the spring seat and interacts with the spring seat. connected and passed through the spring.

Its further technical solution is: the lock head lock cylinder assembly includes a lower rod joint, a rotating arm, a lock core shaft and a lock head seat, the two ends of the lower rod joint are open, and the lower end of the lower unlocking ejector rod is placed In the upper end of the lower rod joint, the lower end of the lower rod joint is formed with a mounting position for the installation of the rotating arm. The upper end of the rotating arm is hinged in the mounting position, and the two sides of the lower end extend outward respectively. A top edge is formed, and the two top edges abut against both sides of the lower end of the lower rod joint respectively; the lock seat includes a bottom plate, and the center of the back of the bottom plate extends vertically outward to form a connecting portion, The connecting part is a hollow main body structure, the key hole is arranged on the base plate corresponding to the connecting part, and the key hole communicates with the connecting part for a key to be inserted into the connecting part. The suspended end is connected to one end of the lock core shaft, and the other end of the lock core shaft is connected to the upper end of the rotating arm, so that the rotating arm is interlocked with the operation of the key inserted into the keyhole.

Its further technical solution is: the lower fixing component includes a support plate, the support plate is connected with the mullion to be arranged in the mullion, and its upper end extends away from the mullion to form a splint, An accommodating groove for the lower unlocking push rod to penetrate is formed on the splint.

Its further technical solution is: the lower unlocking push rod is provided with a limiter corresponding to the accommodating groove, one end of the limiter is connected to the lower unlocking push rod, and the other end is connected to the accommodating groove extended to block the rotation of the lower unlocking ejector rod.

The beneficial technical effects of the present invention are: the manual unlocking device for the platform screen door is provided with a manual unlocking module for passengers to open the platform screen door on the track side, and a key unlocking module for station service personnel to open the platform screen door on the platform side with a key , in order to realize the manual unlocking operation on both sides of the platform screen door through simple operation in emergency situations, allowing passengers to travel between the train carriage and the platform, the structure is simple, safe and reliable.

Description of drawings

Fig. 1 is a structural schematic diagram of a manual unlocking device for a platform screen door according to the present invention.

Fig. 2 is a schematic diagram of the installation of the platform screen door manual unlocking device shown in Fig. 1 in the mullion of the platform screen door.

Fig. 3 is a structural schematic diagram of the handle unlocking assembly of the manual unlocking device for the platform screen door shown in Fig. 1 .

Fig. 4 is a schematic structural view of the worm sleeve of the handle unlocking assembly shown in Fig. 3 .

Fig. 5 is a structural schematic view of the back of the handle unlocking assembly shown in Fig. 3 .

Fig. 6 is a structural schematic diagram of the unlocked state of the handle unlocking assembly shown in Fig. 5 .

Fig. 7 is a schematic structural view of the upper fixing assembly of the manual unlocking device for the platform screen door shown in Fig. 1 .

Fig. 8 is a structural schematic diagram of the lock cylinder assembly of the manual unlocking device for the platform screen door shown in Fig. 1 omitting the lower rod joint.

Fig. 9 is a schematic diagram of the installation structure of the lower fixing assembly and the lower unlocking push rod of the manual unlocking device for the platform screen door shown in Fig. 1 .

Fig. 10 is a schematic structural view of the platform screen door manual unlocking device shown in Fig. 1 when it is unlocked by a manual unlocking module.

Fig. 11 is a schematic structural view of the platform screen door manual unlocking device shown in Fig. 1 when it is unlocked by a key unlocking module.

Detailed ways

In order to make those skilled in the art more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1 and Fig. 2, in the present embodiment, the manual unlocking device 10 of the platform screen door is installed in the vertical frame 20 of the platform screen door, and the manual unlocking device 10 of the platform screen door includes a manual unlocking module 110 and a key Unlock the module 120 . The manual unlocking module 110 is used for passengers to open the platform screen door on the track side, and the key unlocking module 120 is used for station service personnel to use a key to open the platform screen door on the platform side.

Referring to FIGS. 1 to 3 , wherein the manual unlocking module 110 includes a handle unlocking component 111 , an upper fixing component 112 and an upper unlocking push rod 113 , the upper end of the upper unlocking push rod 113 is connected to the upper fixing component 112 And it can move up and down along the upper fixing component 112 , and the lower end of the upper unlocking push rod 113 is connected with the handle unlocking component 111 . The handle unlocking assembly 111 includes a housing 1111 , a handle 1112 and a worm assembly 1113 . The housing 1111 is fixed inside the mullion 20, the handle 1112 is hinged on one side of the housing 1111 through a rotating shaft 1114, and the worm assembly 1113 is installed on the other side of the housing 1111 One end of the rotating shaft 1114 is connected to the lower end of the worm assembly 1113 through a connecting plate 1115, and the lower end of the upper unlocking jack 113 is connected to the upper end of the worm assembly 1113, so that the upper unlocking jack 113 is connected to the upper end of the worm assembly 1113. The handle 1112 of the handle unlocking assembly 111 moves up and down in conjunction with each other. The connecting plate 1115 is provided to transmit the rotation of the rotating shaft 1114 to the upper unlocking push rod 113, and the upper unlocking push rod 113 is driven to move upward. Open the platform screen door. Preferably, there are multiple connecting plates 1115, and the multiple connecting plates 1115 are connected in sequence. Specifically, the handle unlocking assembly 111 is located in the middle of the platform screen door manual unlocking device 1, the handle 1112 can be covered on the housing 1111, and protrudes from the mullion 20, and the The housing 1111 , the handle 1112 and the rotating shaft 1114 are all arranged vertically. The two ends of the housing 1111 are oppositely formed with mounting holes for the rotating shaft 1114 to pass through. One side of the handle 1112 is sheathed on the rotating shaft 1114 and connected with the rotating shaft 1114, the two ends of the rotating shaft 1114 are respectively placed in the corresponding mounting holes, so as to realize the hinge connection between the handle 1112 and the housing 1111, so that the rotating shaft 1114 opens and closes with the handle 1112 move and turn. The connecting plate 1115 is arranged horizontally, and a plurality of perforations are formed on it for passing through one end of the rotating shaft 1114 and the lower end of the worm assembly 1113, so as to transmit the rotation of the rotating shaft 1114 to the worm assembly 1113, thereby driving the upper unlocking jack rod 113 moves.

1 and 2, the key unlocking module 120 is arranged below the manual unlocking module 110, including a lower unlocking push rod 121, a lower fixing assembly 122 and a lock cylinder assembly 123, the lower fixing assembly 122 is sleeved on the lower unlocking jack 121, the lower end of the lower unlocking jack 121 is connected to the lock cylinder assembly 123, the upper end of the lower unlocking jack 121 is connected to the lower end of the worm assembly 1113 It is connected and abutted against the lower end of the upper unlocking push rod 113 , so that the lower unlocking push rod 121 moves up and down in conjunction with the operation of the key inserted into the key hole 1231 of the lock cylinder assembly 123 . By controlling the lower unlocking push rod 121 to move upwards, the upper unlocking push rod 113 can be promoted to move upwards. When the upward movement stroke meets the unlocking requirements, the manual unlocking at the platform side can be realized, and the platform screen door can be opened at the platform side.

1 to 6, specifically, in this embodiment, the worm assembly 1113 includes a worm 1301 and a worm sleeve 1302, the worm sleeve 1302 and the worm 1301 are both hollow body structures, and the worm sleeve 1302 is set On the other side of the housing 1111, the worm 1301 is passed through the inner hole 1303 of the worm sleeve 1302, a protrusion 1304 is formed on one side of the worm 1301, and the worm sleeve 1302 is far away from the A spiral groove 1305 for sliding the protrusion 1304 is formed on one side of the housing 1111, a linear guide groove 1306 is formed on the side of the worm sleeve 1302 close to the housing 1111, and the housing 1111 corresponds to The linear guide groove 1306 is formed with a limit protrusion, and the limit protrusion is placed in the linear guide groove 1306, so that the worm sleeve 1302 is connected with the housing 1111 through the linear guide groove 1306, and the The limiting protrusion can slide relative to the linear guide groove 1306 with the movement of the worm sleeve 1302 , so that the worm sleeve 1302 can move up and down relative to the housing 1111 . The lower end of the upper unlocking push rod 113 is disposed in the worm 1301 and located at the upper end of the worm 1301 , and the upper end of the lower unlocking push rod 121 is disposed in the worm 1301 and located at the lower end of the worm 1301 . Preferably, the worm sleeve 1302 is a hollow cylindrical structure, the worm 1301 is a hollow cylindrical structure, the inner diameter of the inner hole 1303 of the worm sleeve 1302 is equal to the outer diameter of the worm 1301, and the worm 1301 The inner diameter of the circular hole is equal to the outer diameter of the upper unlocking push rod 113 , so that the worm assembly 1113 is connected with the upper unlocking push rod 113 and can be linked with the movement of the upper unlocking push rod 113 . Cooperating with the linear guide groove 1306 by setting the limit protrusion can prevent the upper unlocking push rod 113 from rotating during the moving process, reducing energy loss and improving work efficiency.

Specifically, in this embodiment, the worm assembly 1113 further includes a support plate 1307, the support plate 1307 is bent along the middle to form a first folded plate 3071 and a second folded plate 3072, the first folded plate 3071 is set on the housing 1111 and the first folded plate 3071 is provided with a positioning hole through which the fixing part passes, so as to fix the handle unlocking assembly 111 to the mullion of the platform screen door through the fixing part within 20. Preferably, the fixing member is a screw. The second folding plate 3072 is arranged opposite to the lower end surface of the worm 1301 and the second folding plate 3072 is correspondingly provided with a through hole for the worm 1301 to pass through, and the lower end of the worm 1301 passes through the connection. The through hole of the plate 1115 is passed through the through hole through a bushing 3073 . By arranging the sleeve 3073, the lower end of the worm 1301 can better pass through the through hole, preventing the worm 1301 from being damaged during the movement.

Specifically, in this embodiment, the lower end of the worm 1301 is covered with a torsion spring 3074 , and the lower end of the torsion spring 3074 abuts against the connecting plate 1115 . By setting the torsion spring 3074, the spring characteristic can be used to restore the manual unlocking module 110 to the original state.

Referring to Fig. 1, Fig. 2 and Fig. 7, specifically, in this embodiment, the upper fixing assembly 112 includes a bracket 1121 and a spring 1122, and the bracket 1121 includes a main board 2101, and the main board 2101 and the vertical The frame 20 is connected to be arranged in the mullion 20, and the upper end of the main board 2101 extends away from the mullion 20 to form a baffle 2102, and a baffle 2102 is formed on the baffle 2102 for the upper unlocking push rod. 113 passes through the through hole 2103 , the upper end of the upper unlocking push rod 113 passes through the through hole 2103 , and the top end of the upper unlocking push rod 113 is fixed with a top lock bracket 1123 . Under normal circumstances, the manual unlocking device 10 of the platform screen door is installed in the mullion 20 of the platform screen door, the inner top surface of the mullion 20 is provided with an unlock button, and the top of the upper unlocking push rod 113 There is a certain distance from the inner top surface of the mullion 20. When the unlocking operation is performed, the upper unlocking push rod 113 moves upward to contact with the unlocking button on the inner top surface of the mullion 20, and the top lock bracket 1123 can be set to Increase the contact area with the top surface of the mullion 20, avoid damage to the mullion 20 and the upper unlocking push rod 113, and prevent poor contact caused by the small contact area, wherein the unlock button is used to open the platform screen door.

The spring 1122 is sheathed on the upper end of the upper unlocking push rod 113 and one end of the spring 1122 abuts against the baffle 2102, and the other end of the spring 1122 is connected with a spring seat 1124, the spring seat 1124 is disposed on the main board 2101, and a convex edge 1125 is formed on the side of the spring seat 1124 close to the main board 2101, and a slide groove 2104 is formed on the main board 2101 for the convex edge 1125 to be inserted and slide up and down. The spring seat 1124 is formed with an accommodating hole for the upper unlocking push rod 113 to pass through. 1124 is connected, and the upper unlocking push rod 113 passes through the spring 1122 . The manual unlocking module 110 is restored to the original state by setting the spring 1122 to utilize the spring characteristic.

Referring to Fig. 1, Fig. 2 and Fig. 8, specifically, in this embodiment, the lock cylinder assembly 123 includes a lower bar joint 1232, a rotating arm 1233, a lock cylinder shaft 1234 and a lock cylinder seat 1235, the Both ends of the lower rod joint 1232 are open, the lower end of the lower unlocking push rod 121 is placed in the upper end of the lower rod joint 1232, and the lower end of the lower rod joint 1232 is formed with an installation position for the installation of the rotating arm 1233, The upper end of the pivoting arm 1233 is hinged in the mounting position, and the two sides of the lower end of the pivoting arm 1233 respectively extend outward to form a top edge 3301, and the two top edges 3301 are respectively connected to the bottom rod joint 1232. The two sides of the lower end butt against each other. The lock seat 1235 includes a bottom plate 3501, the center of the back of the bottom plate 3501 extends vertically outwards to form a connecting portion 3502, the connecting portion 3502 is a hollow main body structure, and the key hole 1231 corresponds to the connecting portion 3502 It is arranged on the bottom plate 3501, the key hole 1231 communicates with the connecting portion 3502 for the key to be inserted into the connecting portion 3502, and the free end of the connecting portion 3502 is connected with one end of the lock core shaft 1234, so that The other end of the lock core shaft 1234 is connected to the upper end of the rotating arm 1233, so that the rotating arm 1233 is rotated in conjunction with the operation of the key inserted into the keyhole 1231, and a top edge of the rotating arm 1233 is 3301 jacks up the lower rod joint 1232 along with the rotation, so that the lower unlocking push rod 121 moves upward, thereby driving the worm 1301 to move upward, so that the upper unlocking push rod 113 moves upward. Preferably, the lock seat 1235 of the lock cylinder assembly 123 is arranged corresponding to the skirting board 201 of the platform screen door.

Referring to Fig. 1, Fig. 2 and Fig. 9, specifically, in this embodiment, the lower fixing assembly 122 includes a support plate 1221, and the support plate 1221 is connected to the mullion 20 so as to be arranged on the mullion 20 , and the upper end of the support plate 1221 extends away from the mullion 20 to form a splint 1222 , and the splint 1222 is formed with an accommodating groove 1223 for the lower unlocking push rod 121 to pass through.

Preferably, the lower unlocking push rod 121 is provided with a limiter 1211 corresponding to the accommodating groove 1223, one end of the limiter 1211 is connected with the lower unlocking pusher 121, and the other end of the limiter 1211 is connected to the receiving groove 1223. protrude from the slot 1223 to prevent the lower unlocking push rod 121 from rotating around its own axis. By setting the limiting member 1211, the rotation of the lower unlocking push rod 121 during the movement can be prevented, energy loss is reduced, and work efficiency is improved.

Referring to Fig. 1 to Fig. 10, based on the above-mentioned design, when a passenger needs to open the platform screen door on the track side, the passenger will open the handle 1112 of the handle unlocking assembly 111 of the manual unlocking module 110 from the closed state. The operation drives the rotating shaft 1114 to rotate, and transmits it to the worm 1301 through the connecting plate 1115, so as to drive the worm 1301 to rotate, so that the protrusion 1304 of the worm 1301 slides upward along the spiral groove 1305 on the worm sleeve 1302 to the spiral The edge of the slot 1305 pushes the worm sleeve 1302 to move upwards in the housing 1111. At this time, the torsion spring 3074 is compressed; the worm sleeve 1302 moves upwards to drive the upper unlocking push rod 113 to move upwards, so that it is compatible with the upper unlocking push rod. The spring seat 1124 of the upper fixing assembly 112 connected to 113 slides upward along the chute 2104 of the main board 2101 of the bracket 1121, and the spring 1122 is compressed. If the movement stroke of the upper unlocking push rod 113 meets the unlocking requirements, the platform shielding on the side of the track is completed. Manual unlocking of the door. Specifically, the unlocking requirement may be that the top lock bracket 1123 fixed on the top of the upper unlocking push rod 113 is in contact with the top surface of the mullion 20 . After the unlocking action is completed, the effect of the external force is released. Using the spring characteristics, the upper unlocking push rod 113 moves downward under the action of the spring 1122, driving the worm assembly 1113 to move downward, and the worm 1301 is driven by the torsion spring 3074. The protrusion 1304 slides down along the spiral groove 1305, resets automatically, and restores the initial state. The connecting plate 1115 transmits the movement of the worm 1301 to the rotating shaft 1114 to drive the rotating shaft 1114 to rotate, thereby driving the handle 1112 to reset and cover the shell Body 1111 on.

Referring to Fig. 1 to Fig. 9, combined with Fig. 11, based on the above-mentioned design, when the station service personnel need to open the platform screen door on the platform side, kick the skirting board 201, so that the key hole 1231 of the lock cylinder assembly 123 is exposed for station service The personnel inserts the key, turns the key to make the key hole 1231 rotate, and simultaneously drives the connecting portion 3502 of the lock head seat 1235 connected and communicated with the key hole 1231 to rotate, so as to drive the lock core shaft 1234 and the rotating arm 1233 to rotate, so as to realize The rotating arm 1233 is rotated in conjunction with the operation of the key inserted into the key hole 1231 , a top side 3301 of the rotating arm 1233 is separated from one side of the lower rod joint 1232 , and the other top side of the rotating arm 1233 is The side 3301 lifts the lower rod joint 1232 as it rotates, so that the lower unlocking push rod 121 moves upward, thereby driving the worm 1301 to move upward, so that the protrusion 1304 of the worm 1301 moves along the spiral groove 1305 on the worm sleeve 1302 After sliding up to the edge of the spiral groove 1305, push the worm sleeve 1302 to move upward in the housing 1111, at this time, the torsion spring 3074 is compressed; the worm sleeve 1302 moves upward to drive the upper unlocking push rod 113 to move upward, so that The spring seat 1124 of the upper fixing assembly 112 connected to the upper unlocking push rod 113 slides upward along the chute 2104 of the main board 2101 of the bracket 1121, and the spring 1122 is compressed. If the movement stroke of the upper unlocking push rod 113 meets the unlocking requirements, the platform is completed. Manual unlocking of side platform screen doors. Specifically, the unlocking requirement may be that the top lock bracket 1123 fixed on the top of the upper unlocking push rod 113 is in contact with the top surface of the mullion 20 . After the unlocking action is completed, turn the key in the opposite direction to drive the connecting portion 3502 of the lock head seat 1235 connected and communicated with the key hole 1231 to rotate, so as to drive the lock core shaft 1234 and the rotating arm 1233 to rotate, so as to realize the rotation. The arm 1233 rotates in conjunction with the operation of the key inserted into the key hole 1231, so that the top edge 3301 of the rotating arm 1233 that is in contact with the lower rod joint 1232 at this time rotates in a direction away from the lower rod joint 1232 so that it is in contact with the lower rod joint 1232. The top edge of the rotating arm 1233 separated from the rod joint 1232 moves toward the direction close to the lower rod joint 1232, so that both sides of the lower rod joint 1232 are in contact with the top edge 3301 of the rotating arm 1233; Features, the upper unlocking push rod 113 moves downward under the action of the spring 1122, driving the worm assembly 1113 to move downward, and the worm 1301 makes the protrusion 1304 slide downward along the spiral groove 1305 under the action of the torsion spring 3074 , automatically reset and restore the initial state.

In summary, the platform screen door manual unlocking device of the present invention is provided with a manual unlocking module for passengers to open the platform screen door on the track side, and a key unlocking module for station service personnel to use a key to open the platform screen door on the platform side to realize In case of emergency, the manual unlocking operation can be realized on both sides of the platform screen door through a simple operation, allowing passengers to travel between the train compartment and the platform. The structure is simple, safe and reliable.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Those skilled in the art can make various equivalent changes and improvements on the basis of the above-mentioned embodiments, and all equivalent changes or modifications made within the scope of the claims shall fall within the protection scope of the present invention.

Claims (8)

1. A manual unlocking device for a platform screen door, installed in the mullion of a platform screen door, characterized in that the manual unlocking device for a platform screen door includes: The manual unlocking module is used to open the platform screen door on the track side, which includes a handle unlocking component, an upper fixing component and an upper unlocking push rod, the upper end of the upper unlocking push rod is connected with the upper fixing component and moves along the upper The fixed component moves up and down, and its lower end is connected with the handle unlocking component. The handle unlocking component includes a housing, a handle and a worm assembly. The housing is fixed in the mullion, and the handle is hinged to the On one side of the casing, the worm assembly is installed on the other side of the casing, one end of the rotating shaft is connected to one end of the worm assembly through a connecting plate, and the lower end of the upper unlocking push rod is connected to The other end of the worm assembly is connected so that the upper unlocking rod moves up and down in conjunction with the handle of the handle unlocking assembly; The key unlocking module is used to open the platform screen door on the platform side, and it is arranged below the manual unlocking module, including a lower unlocking push rod, a lower fixing component and a lock cylinder component, and the lower fixing component is sleeved on the On the lower unlocking push rod, the lower end of the lower unlocking push rod is connected to the lock cylinder assembly, and the upper end thereof is connected to one end of the worm assembly and abuts against the lower end of the upper unlocking push rod to The lower unlocking push rod is moved up and down in conjunction with the operation of the key inserted into the key hole of the lock cylinder assembly. 2. The manual unlocking device for platform screen doors according to claim 1, wherein the worm assembly includes a worm and a worm sleeve, both of which are hollow main structures, and the worm sleeve is arranged on the On the other side of the housing, the worm is passed through the inner hole of the worm sleeve, a protrusion is formed on one side of the worm, and a protrusion is formed on the side of the worm sleeve away from the housing for the The spiral groove where the protrusion slides, and a linear guide groove is formed on the side of the worm sleeve close to the housing, and the worm sleeve is connected with the housing through the linear guide groove, so that the worm sleeve can be opposite to the housing Moving up and down, the lower end of the upper unlocking push rod is arranged in the worm and is located at the upper end of the worm, and the upper end of the lower unlocking push rod is arranged in the worm and is located at the lower end of the worm. 3. The manual unlocking device for platform screen doors according to claim 2, wherein the worm assembly also includes a support plate, the support plate is bent along the middle to form a first folded plate and a second folded plate, The first folding plate is arranged on the housing and is provided with a positioning hole for the fixing piece to pass through, so as to fix the handle unlocking assembly in the mullion of the platform screen door through the fixing piece; The two folded plates are arranged opposite to the lower end surface of the worm and are correspondingly provided with a through hole for the worm to pass through. through hole. 4 . The manual unlocking device for platform screen doors according to claim 3 , wherein a torsion spring is provided over the lower end of the worm, and the lower end of the torsion spring abuts against the connecting plate. 5 . 5. The platform screen door manual unlocking device as claimed in claim 1, wherein the upper fixing assembly includes a bracket and a spring, and the bracket includes a main board, and the main board is connected with the mullion to be arranged on In the mullion, and its upper end extends away from the mullion to form a baffle, the baffle is formed with a through hole for the upper unlocking push rod to pass through, and the upper unlocking push rod The upper end passes through the piercing hole and a top lock bracket is fixed at the top; the spring is sleeved on the upper end of the upper unlocking push rod, and one end of the spring abuts against the baffle plate, and the other end A spring seat is connected, the spring seat is arranged on the main board and a flange is formed on the side close to the main board, and a chute is formed on the main board for the flange to be inserted and slide up and down. The unlocking push rod passes through the spring seat and is connected with the spring seat, and passes through the spring. 6. The manual unlocking device for the platform shield door according to claim 1, wherein the lock cylinder assembly includes a lower rod joint, a rotating arm, a lock core shaft and a lock head seat, and the two lower rod joints The end is open, the lower end of the lower unlocking push rod is placed in the upper end of the lower rod joint, and the lower end of the lower rod joint is formed with a mounting position for the installation of the rotating arm. In the installation position, the two sides of the lower end respectively extend outward to form a top edge, and the two top edges are respectively abutted against the two sides of the lower end of the lower rod joint; the lock seat includes a bottom plate, the The center of the back of the bottom plate extends vertically outwards to form a connecting portion, the connecting portion is a hollow main body structure, the key hole is arranged on the bottom plate corresponding to the connecting portion, and the key hole communicates with the connecting portion for The key is inserted into the connecting part, the free end of the connecting part is connected to one end of the lock core shaft, and the other end of the lock core shaft is connected to the upper end of the rotating arm, so that the rotating arm is inserted into the The operation of the key in the keyhole is interlocked. 7. The manual unlocking device for the platform screen door according to claim 1, wherein the lower fixing assembly includes a support plate, the support plate is connected with the mullion to be arranged in the mullion, and A splint is formed on the upper end thereof extending away from the mullion, and an accommodating groove is formed on the splint for the lower unlocking push rod to pass through. 8. The manual unlocking device for the platform screen door according to claim 7, wherein a limit piece is arranged on the lower unlocking push rod corresponding to the accommodating groove, and one end of the limit piece is connected to the lower The unlocking push rod is connected, and the other end thereof protrudes from the accommodating groove, so as to block the rotation of the lower unlocking push rod.

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