Door lock linkage system of double-open half-height platform door

Abstract

The utility model provides a door lock linkage system of a double-open half-height platform door, which comprises a main body frame, a left sliding door assembly and a right sliding door assembly, and the left sliding door assembly and the right sliding door assembly can synchronously and reversely move relative to the main body frame; the main body frame is provided with a door lock device which is used for limiting the movement of the left sliding door assembly; the left sliding door assembly is provided with a left door manual unlocking device, and the right sliding door assembly is provided with a right door manual unlocking device. The door lock linkage system of the double-opening half-height platform door can achieve the reliable locking function of the double doors under the condition of being combined with synchronous belt driving, compared with a door lock system of a single door matched with a single lock of a traditional half-height platform door, one locking point is reduced, the system synchronization and stability are improved, meanwhile, the cost is reduced, and the system safety is improved. And the two sliding doors in the same frame are unlocked in a synchronous linkage mode through the manual unlocking device on any sliding door, operability is greatly improved, and the emergency escape requirement of the high-speed rail double-door half-height platform door can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit platform door technical field especially is a door lock linkage system of double -open half -height platform door. BACKGROUND

[0002] The existing fixed half -height platform door usually is one fixed side box with a sliding door form, and each sliding door is equipped with a set of manual unlocking device, and each sliding door is unlocked independently. The double -open half -height platform door is a new type of high -speed railway platform door, and is a main frame structure with two sliding doors, and the main frame structure can be fixed or movable. The two sliding doors of the double -open half -height platform door are driven by a motor and a closed loop synchronous belt, can realize synchronous reverse movement, solve the stability and safety problem caused by the poor synchronism of the traditional sliding door, and can realize the door opening degree function of the high -speed railway platform door matched with different vehicle types.

[0003] But at the same time, the sliding door structure of the double -open half -height platform door synchronous reverse movement brings technical problems to the locking and unlocking system. The single door single lock door lock system and unlocking device of the traditional half -height platform door cannot meet the locking and unlocking demand of the platform door, and the possible problems are as follows: the two locking systems need to be unlocked synchronously when the sliding door is automatically operated, the stability and safety are poor; one manual unlocking can only unlock one sliding door independently, cannot be linked, and the two sliding doors must be unlocked synchronously to remove the locking state, the operability is poor, the safety is poor, and the demand of emergency escape cannot be completely met.

[0004] Therefore, a linkage door lock system suitable for the double -open half -height platform door is needed. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems that: provide a double -open half -height platform door's door lock linkage system that structural reason, cost is low, operability is strong, security is high.

[0006] In order to solve the above technical problem, the utility model adopts the technical scheme that: a double -open half -height platform door's door lock linkage system, including main frame, left sliding door component and right sliding door component, left sliding door component and right sliding door component are respectively arranged in the left and right ends of main frame, left sliding door component and right sliding door component can be synchronous reverse motion relative to main frame;

[0007] The main frame is equipped with door lock device, and the door lock device is used to limit the movement of the left sliding door component;

[0008] The left sliding door assembly is provided with a left door manual unlocking device, which drives the door lock device through a left conversion device to release the movement restriction of the door lock device on the left sliding door assembly;

[0009] The right sliding door assembly is provided with a right door manual unlocking device, which drives the door lock device through a right conversion device to release the movement restriction of the door lock device on the left sliding door assembly.

[0010] Further, the door lock device comprises a door lock mounting seat, an unlocking driver, a door lock rotating shaft and a lock rod, the door lock mounting seat is arranged on the main body frame, the unlocking driver and the door lock rotating shaft are arranged on the door lock mounting seat, the lock rod is rotatably arranged on the door lock rotating shaft, and a door lock lock pin is correspondingly arranged on the left sliding door assembly;

[0011] One end of the lock rod is connected with a movable part of the unlocking driver, and the other end of the lock rod is provided with a lock pin hook, and the unlocking driver can drive the lock rod to rotate around the door lock rotating shaft;

[0012] When the door lock device is in the locking state, the lock pin hook of the lock rod is in hooking and fixing with the door lock lock pin;

[0013] When the door lock device is in the unlocking state, the lock pin hook of the lock rod is separated from the door lock lock pin.

[0014] Further, the door lock device further comprises a left door unlocking mechanism, the left door unlocking mechanism comprises a left unlocking rotating shaft and a left unlocking push block, the left unlocking rotating shaft is arranged on the door lock mounting seat, and the left unlocking push block is rotatably arranged on the left unlocking rotating shaft; when the left unlocking push block is driven to rotate in the unlocking direction, the left unlocking push block can drive the lock pin hook of the lock rod to be separated from the door lock lock pin.

[0015] Further, the door lock device further comprises a right door unlocking mechanism, the right door unlocking mechanism comprises a right unlocking rotating shaft and a right unlocking push block, the right unlocking rotating shaft is arranged on the door lock mounting seat, and the right unlocking push block is rotatably arranged on the right unlocking rotating shaft; when the right unlocking push block is driven to rotate in the unlocking direction, the right unlocking push block can drive the lock pin hook of the lock rod to be separated from the door lock lock pin.

[0016] Further, the left door manual unlocking device comprises a left door manual unlocking seat, a left manual unlocking rotating shaft, a left manual unlocking push rod and a left manual unlocking cable, the left door manual unlocking seat is arranged on the left sliding door assembly, the left manual unlocking rotating shaft is arranged on the left door manual unlocking seat, the left manual unlocking push rod is rotatably arranged on the left manual unlocking rotating shaft, and one end of the left manual unlocking push rod is connected with one end of the left manual unlocking cable.

[0017] Further, the left conversion device comprises a left door body unlocking mounting seat, a left door body unlocking rotating shaft, a left door body unlocking lever, a left door body cable seat and a left door body unlocking reset spring. The left door body unlocking mounting seat is arranged on the left sliding door assembly. The left door body unlocking rotating shaft and the left door body cable seat are arranged on the left door body unlocking mounting seat. The left door body unlocking lever is rotatably arranged on the left door body unlocking rotating shaft. The other end of the left manual unlocking cable is connected with one end of the left door body unlocking lever through the left door body cable seat. The left door body unlocking reset spring is arranged between the left door body cable seat and the left door body unlocking lever.

[0018] Further, the right door manual unlocking device comprises a right door manual unlocking seat, a right manual unlocking rotating shaft, a right manual unlocking lever and a right manual unlocking cable. The right door manual unlocking seat is arranged on the right sliding door assembly. The right manual unlocking rotating shaft is arranged on the right door manual unlocking seat. The right manual unlocking lever is rotatably arranged on the right manual unlocking rotating shaft. One end of the right manual unlocking lever is connected with one end of the right manual unlocking cable.

[0019] Further, the right conversion device comprises a right door body unlocking mounting seat, a right door body unlocking rotating shaft, a right door body unlocking lever, a right door body cable seat, a right door body unlocking reset spring, a main body unlocking seat, a main body unlocking rotating shaft, a main body unlocking lever and a main body unlocking cable.

[0020] The right door body unlocking mounting seat is arranged on the right sliding door assembly. The right door body unlocking rotating shaft and the right door body cable seat are arranged on the right door body unlocking mounting seat. The right door body unlocking lever is rotatably arranged on the right door body unlocking rotating shaft. The other end of the right manual unlocking cable is connected with one end of the right door body unlocking lever through the right door body cable seat. The right door body unlocking reset spring is arranged between the right door body cable seat and the right door body unlocking lever.

[0021] The main body unlocking seat is arranged on the main body frame. The main body unlocking rotating shaft is arranged on the main body unlocking seat. The main body unlocking lever is rotatably arranged on the main body unlocking rotating shaft. One end of the main body unlocking lever away from the right door body unlocking lever is connected with one end of the main body unlocking cable. The other end of the main body unlocking cable is connected with one end of the right unlocking lever.

[0022] Further, the door lock pin is provided with a sleeve.

[0023] Further, the unlocking driver is an electromagnet unlocking driver.

[0024] The utility model discloses a beneficial effect lies in: provide a kind of door lock linkage system of double-open half-high platform door of synchronization belt driving, reliable locking function of double door can be realized, compared with the door lock system of single door of traditional half-high platform door with single lock, can reduce a locking point, improve system synchronization and stability while reducing cost, and by manual unlocking device on arbitrary sliding door synchronous linkage unlocking two sliding doors in same frame, operability greatly improves, more can satisfy the emergency escape demand of high-speed rail double-open door half-high platform door. BRIEF DESCRIPTION OF DRAWINGS

[0025] The specific structure of the utility model is described in detail below in connection with drawings:

[0026] Figure 1 It is whole structure schematic diagram of the door lock linkage system of double-open half-high platform door of the utility model;

[0027] Figure 2 It is structure schematic diagram of left door manual unlocking device and left conversion device of the utility model;

[0028] Figure 3 It is structure schematic diagram of right door manual unlocking device and right conversion device of the utility model;

[0029] Figure 4 It is Figure 1 It is the local structure schematic diagram of A;

[0030] Figure 5 It is the state diagram of double-open half-high platform door of the utility model when being closed;

[0031] Figure 6 It is the state diagram of double-open half-high platform door of the utility model when being opened;

[0032] Figure 7 It is the structure diagram of door lock device of the utility model;

[0033] 1-left door manual unlocking device;2-left conversion device;3-door lock device;4-right door manual unlocking device;5-right conversion device;8-main body frame;9-left sliding door component;10-right sliding door component;

[0034] 101-left door manual unlocking seat;102-left manual unlocking pivot;103-left manual unlocking lever;104-left manual unlocking cable;

[0035] 201-left door body unlocking mounting seat;202-left door body unlocking pivot;203-left door body unlocking lever;204-left door body cable seat;205-left door body unlocking reset spring;206-door lock pin;

[0036] 301 - door lock mounting seat; 302 - unlocking driver; 303 - door lock rotating shaft; 304 - lock rod; 3041 - lock pin hook; 3042 - limiting support arm; 306 - left unlocking block; 307 - limiting block;

[0037] 401 - right door manual unlocking seat; 402 - right manual unlocking rotating shaft; 403 - right manual unlocking lever; 404 - right manual unlocking cable;

[0038] 501 - right door body unlocking mounting seat; 502 - right door body unlocking rotating shaft; 503 - right door body unlocking lever; 504 - right door body cable seat; 505 - right door body unlocking reset spring;

[0039] 601 - main body unlocking seat; 602 - main body unlocking rotating shaft; 603 - main body unlocking lever; 604 - main body unlocking cable;

[0040] 701 - right unlocking rotating shaft; 702 - right unlocking block. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0044] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do the broad sense understanding, for example, can be the connection, also can be the detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through the intermediate medium, can be the communication of two elements or the interaction of two elements.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them.Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled person in the art can combine and combine different embodiments or examples described in the specification.

[0047] Embodiment

[0048] Please refer to Figures 1 to 7 The embodiment provides a door lock linkage system of double-opening half-height platform door, including main body frame 8, left sliding door assembly 9 and right sliding door assembly 10, left sliding door assembly 9 and right sliding door assembly 10 are arranged at the left and right ends of main body frame 8 respectively, left sliding door assembly 9 and right sliding door assembly 10 can be synchronously reversed relative to main body frame 8 Motion;

[0049] The main body frame 8 is provided with a door lock device 3, and the door lock device 3 is used to limit the movement of the left sliding door assembly 9;

[0050] The left sliding door assembly 9 is provided with a left door manual unlocking device 1, which drives the door lock device 3 through a left conversion device to release the movement restriction of the left sliding door assembly 9 by the door lock device 3.

[0051] The right sliding door assembly 10 is provided with a right door manual unlocking device 4, which drives the door lock device 3 through a right conversion device 5 to release the movement restriction of the left sliding door assembly 9 by the door lock device 3.

[0052] In the embodiment, the left sliding door assembly 9 and the right sliding door assembly 10 are movably arranged at the left and right ends of the main frame 8, respectively. When the door is closed, the left sliding door assembly 9 is extended from the left end of the main frame 8, and the right sliding door assembly 10 is extended from the right end of the main frame 8. When the door is opened, the left sliding door assembly 9 and the right sliding door assembly 10 are both accommodated in the main frame 8. The inside of the main frame 8 is provided with a driving motor and a synchronous structure. The driving motor drives the synchronous structure to drive the left sliding door assembly 9 and the right sliding door assembly 10, so that the left sliding door assembly 9 and the right sliding door assembly 10 can make synchronous reverse movement relative to the main frame 8, thereby realizing automatic opening / closing of the door.

[0053] In order to avoid the left sliding door assembly 9 and the right sliding door assembly 10 from being accidentally opened when unnecessary, the main frame 8 is provided with a door lock device 4, which is used to restrict the movement of the left sliding door assembly 9. Since the left sliding door assembly 9 and the right sliding door assembly 10 are connected through the synchronous structure, when the door lock device 3 locks the left sliding door assembly 9, the right sliding door assembly 10 cannot make the opening movement.

[0054] In order to meet the emergency escape requirement, the left sliding door assembly 9 is provided with a left door manual unlocking device 1, which drives the door lock device 3 through a left conversion device 2 to release the movement restriction of the left sliding door assembly 9 by the door lock device 3. The right sliding door assembly 10 is provided with a right door manual unlocking device 4, which drives the door lock device 3 through a right conversion device 5 to release the movement restriction of the left sliding door assembly 9 by the door lock device 3.

[0055] The left door manual unlocking device 1 and the right door manual unlocking device 4 can both realize the unlocking operation of the door lock device 3, greatly improving the operability of the emergency door opening.

[0056] As preferred in the embodiment, the door lock device 3 comprises a door lock mounting base 301, an unlocking driver 302, a door lock rotating shaft 303 and a lock rod 304, the door lock mounting base 301 is arranged on the main frame 8, the unlocking driver 302 and the door lock rotating shaft 303 are arranged on the door lock mounting base 301, the lock rod 304 is rotatably arranged on the door lock rotating shaft 303, and a door lock bolt 206 is correspondingly arranged on the left sliding door assembly 9.

[0057] One end of the lock rod 304 is connected with the movable part of the unlocking driver 302, and the other end of the lock rod 304 is provided with a bolt hook 3041, and the unlocking driver 302 can drive the lock rod 304 to rotate around the door lock rotating shaft 303.

[0058] When the door lock device 3 is in the locking state, the bolt hook 3041 of the lock rod 304 is in hooking and fixing with the door lock bolt 206.

[0059] When the door lock device 3 is in the unlocking state, the bolt hook 3041 of the lock rod 304 is separated from the door lock bolt 206.

[0060] In specific implementation, by arranging the door lock device 3 on the main frame 8 and correspondingly arranging the door lock bolt 206 on the left sliding door assembly 9, the left sliding door assembly 9 can be locked by the door lock device 3.

[0061] The door lock device 3 comprises a door lock mounting base 301, an unlocking driver 302, a door lock rotating shaft 303 and a lock rod 304, the door lock mounting base 301 is arranged on the main frame 8, the unlocking driver 302 and the door lock rotating shaft 303 are arranged on the door lock mounting base 301, the lock rod 304 is rotatably arranged on the door lock rotating shaft 303, one end of the lock rod 304 is connected with the movable part of the unlocking driver 302, the other end of the lock rod 304 is provided with a bolt hook 3041, and a door lock bolt 206 is correspondingly arranged on the left sliding door assembly 9.

[0062] By sending an opening / closing door signal to the unlocking driver 302, the movable part of the unlocking driver 302 can drive the lock rod 304 to rotate in the unlocking direction / locking direction, so as to separate the bolt hook 3041 of the lock rod 304 from the door lock bolt 206 to realize unlocking, and then perform an opening door action, or after a closing door action is completed, the bolt hook 3041 of the lock rod 304 is in hooking and fixing with the door lock bolt 206 to realize locking.

[0063] Preferably, the unlocking driver 302 is an electromagnet unlocking driver. The electromagnet unlocking driver can control the extension or retraction action of the movable part according to an electric signal, the movable part is movably connected with one end of the lock rod 304, so as to drive the lock rod 304 to rotate around the door lock rotating shaft 303 in the unlocking direction or the locking direction.

[0064] In order to avoid the excessive rotation of the lock rod 304 in the upward locking direction, resulting in the failure to lock, the door lock mounting seat 301 is provided with a limiting block 307, and the lock rod 304 is correspondingly provided with a limiting support arm 3042, which is blocked by the limiting block 307, so that the excessive rotation of the lock rod 304 in the upward locking direction can be effectively avoided, and the stable operation of the system is ensured.

[0065] As preferred in the embodiment, the door lock device 3 further comprises a left door unlocking mechanism, which comprises a left unlocking rotating shaft and a left unlocking block 306, the left unlocking rotating shaft is arranged on the door lock mounting seat 301, and the left unlocking block 306 is rotatably arranged on the left unlocking rotating shaft; when the left unlocking block 306 is driven to rotate in the unlocking direction, the left unlocking block 306 can drive the lock rod 304 to rotate in the unlocking direction, so that the lock hook 3041 is separated from the door lock pin 206.

[0066] In specific implementation, the left unlocking block 306 is arranged above one end of the lock rod 304 provided with the lock hook 3041 through the left unlocking rotating shaft, and when the left unlocking block 306 is driven to rotate in the unlocking direction around the left unlocking rotating shaft through the left door manual unlocking device 1 arranged on the left sliding door assembly 9, the left unlocking block 306 can drive the lock rod 304 to rotate in the unlocking direction, so that the lock hook 3041 is separated from the door lock pin 206, thereby achieving unlocking, which is very convenient.

[0067] The door lock rotating shaft 303 can be used as the left unlocking rotating shaft by penetrating the other surface of the door lock mounting seat 301, so as to simplify the overall structure design.

[0068] As preferred in the embodiment, the door lock device 3 further comprises a right door unlocking mechanism 7, which comprises a right unlocking rotating shaft 701 and a right unlocking block 702, the right unlocking rotating shaft 701 is arranged on the door lock mounting seat 301, and the right unlocking block 702 is rotatably arranged on the right unlocking rotating shaft 701; when the right unlocking block 702 is driven to rotate in the unlocking direction, the right unlocking block 702 can drive the lock hook 3041 of the lock rod 304 to be separated from the door lock pin 206.

[0069] In specific implementation, the right unlocking block 702 is arranged below one end of the lock rod 304 connected with the unlocking driver 302 through the right unlocking rotating shaft 701, and when the right unlocking block 702 is driven to rotate in the unlocking direction around the right unlocking rotating shaft 701 through the right door manual unlocking device 4 arranged on the right sliding door assembly 10, the right unlocking block 702 can drive the lock rod 304 to rotate in the unlocking direction, so that the lock hook 3041 is separated from the door lock pin 206, thereby achieving unlocking, which is very convenient.

[0070] As preferred in the embodiment, the left door manual unlocking device 1 comprises a left door manual unlocking seat 101, a left manual unlocking rotating shaft 102, a left manual unlocking lever 103 and a left manual unlocking cable 104, the left door manual unlocking seat 101 is arranged on the left sliding door assembly 9, the left manual unlocking rotating shaft 102 is arranged on the left door manual unlocking seat 101, the left manual unlocking lever 103 is rotatably arranged on the left manual unlocking rotating shaft 102, and one end of the left manual unlocking lever 103 is connected with one end of the left manual unlocking cable 104.

[0071] In specific implementation, the left door manual unlocking seat 101 is arranged on the left sliding door assembly 9, the left door manual unlocking seat 101 is provided with the left manual unlocking rotating shaft 102, the left manual unlocking lever 103 is rotatably arranged on the left manual unlocking rotating shaft 102, the left manual unlocking lever 103 is in the shape of “T”, the left manual unlocking lever 103 comprises a left manual unlocking lever first branch and a left manual unlocking lever second branch, the left manual unlocking lever second branch is connected with the middle part of the left manual unlocking lever first branch, and the left manual unlocking lever second branch is substantially perpendicular to the left manual unlocking lever first branch, and the left manual unlocking cable 104 is connected with the end of the left manual unlocking lever second branch away from the left manual unlocking lever first branch.

[0072] The left manual unlocking lever 103 and the left manual unlocking rotating shaft 102 are connected with the intersection of the left manual unlocking lever first branch and the left manual unlocking lever second branch, which ensures the structural strength of the left manual unlocking lever 103 and facilitates the user to exert external force on the left manual unlocking lever 103.

[0073] When rotating the left manual unlocking lever 103, the left manual unlocking lever first branch is pulled at one end and pushed at the other end, so that the left manual unlocking lever 103 is easily rotated around the left manual unlocking rotating shaft 102 in the unlocking direction.

[0074] As preferred in the embodiment, the left conversion device 2 comprises a left door body unlocking mounting seat 201, a left door body unlocking rotating shaft 202, a left door body unlocking lever 203, a left door body cable seat 204 and a left door body unlocking reset spring 205, the left door body unlocking mounting seat 201 is arranged on the left sliding door assembly 9, the left door body unlocking rotating shaft 202 and the left door body cable seat 204 are arranged on the left door body unlocking mounting seat 201, the left door body unlocking lever 203 is rotatably arranged on the left door body unlocking rotating shaft 202, the other end of the left manual unlocking cable 104 is connected with one end of the left door body unlocking lever 203 through the left door body cable seat 204, and the left door body unlocking reset spring 205 is arranged between the left door body cable seat 204 and the left door body unlocking lever 203.

[0075] In the embodiment, the left sliding door assembly 9 is arranged on the main frame 8 near the door lock device 3, so the left door manual unlocking device 1 can directly operate the left conversion device 2.

[0076] The left conversion device 2 is arranged at the right end of the left sliding door assembly 9 near the door lock bolt 206, and includes a left door body unlocking mounting seat 201, a left door body unlocking rotating shaft 202, a left door body unlocking lever 203, a left door body cable seat 204, and a left door body unlocking reset spring 205. The left door body unlocking mounting seat 201 is arranged on the left sliding door assembly 9, the left door body unlocking rotating shaft 202 and the left door body cable seat 204 are arranged on the left door body unlocking mounting seat 201, the left door body unlocking lever 203 is rotatably arranged on the left door body unlocking rotating shaft 202, the other end of the left manual unlocking cable 104 is connected to one end of the left door body unlocking lever 203 through the left door body cable seat 204, and the left door body unlocking reset spring 205 is arranged between the left door body cable seat 204 and the left door body unlocking lever 203. When no external force is applied, the left door body unlocking reset spring 205 can make the left door body unlocking lever 203 away from the left unlocking lever block 306 of the left door unlocking mechanism, so as to avoid the mutual influence between the left door body unlocking lever 203 and the left unlocking lever block 306 when the left sliding door assembly 9 moves.

[0077] In order to simplify the structure layout, the door lock bolt 206 can be arranged on the left door body unlocking mounting seat 201, and the left door body unlocking rotating shaft 202 is arranged on the side of the door lock bolt 206 away from the unlocking direction.

[0078] The left door body unlocking lever 203 is in the shape of “L”, and includes a left door body unlocking lever first branch and a left door body unlocking lever second branch. One end of the left door body unlocking lever first branch is connected to one end of the left door body unlocking lever second branch, and the left door body unlocking lever first branch is substantially perpendicular to the left door body unlocking lever second branch. The left manual unlocking cable 104 is connected to the end of the left door body unlocking lever first branch away from the left door body unlocking lever second branch, so that the user can apply a smaller force to unlock the door lock device 3.

[0079] When the left manual unlocking lever 103 is rotated in the unlocking direction, the left manual unlocking cable 104 can drive the left door body unlocking lever 203 to rotate in the unlocking direction, the left door body unlocking lever 203 can drive the left unlocking lever block 306 to rotate in the unlocking direction, and then drive the bolt hook 3041 of the lock rod 304 to separate from the door lock bolt 206.

[0080] As preferred in the embodiment, the right door manual unlocking device 4 comprises a right door manual unlocking seat 401, a right manual unlocking rotating shaft 402, a right manual unlocking lever 403, and a right manual unlocking cable 404. The right door manual unlocking seat 401 is arranged on the right sliding door assembly 10. The right manual unlocking rotating shaft 402 is arranged on the right door manual unlocking seat 401. The right manual unlocking lever 403 is rotatably arranged on the right manual unlocking rotating shaft 402. One end of the right manual unlocking lever 403 is connected with one end of the right manual unlocking cable 404.

[0081] In implementation, the right door manual unlocking seat 401 is arranged on the right sliding door assembly 10. The right door manual unlocking seat 401 is provided with the right manual unlocking rotating shaft 402. The right manual unlocking lever 403 is rotatably arranged on the right manual unlocking rotating shaft 402. The right manual unlocking lever 403 is in the shape of “T”. The right manual unlocking lever 403 comprises a right manual unlocking lever first branch and a right manual unlocking lever second branch. The right manual unlocking lever second branch is connected with the middle part of the right manual unlocking lever first branch. The right manual unlocking lever second branch is substantially perpendicular to the right manual unlocking lever first branch. The right manual unlocking cable is connected with one end of the right manual unlocking lever second branch which is far away from the right manual unlocking lever first branch.

[0082] The right manual unlocking lever 403 and the right manual unlocking rotating shaft 402 are connected with the intersection of the right manual unlocking lever first branch and the right manual unlocking lever second branch. The structure strength of the right manual unlocking lever 403 is ensured. It is convenient for the user to exert the external force on the right manual unlocking lever 403.

[0083] When the right manual unlocking lever 403 is rotated, the right manual unlocking lever first branch is pulled at one end and is pushed at the other end. The right manual unlocking lever 403 is easily rotated around the right manual unlocking rotating shaft 402 in the unlocking direction.

[0084] As preferred in the embodiment, the right conversion device 5 comprises a right door body unlocking mounting seat 501, a right door body unlocking rotating shaft 502, a right door body unlocking lever 503, a right door body cable seat 504, a right door body unlocking reset spring 505, a main body unlocking seat 601, a main body unlocking rotating shaft 602, a main body unlocking lever 603, and a main body unlocking cable 604.

[0085] The right door body unlocking mounting seat 501 is arranged on the right sliding door assembly 10, the right door body unlocking rotating shaft 502 and the right door body cable seat 504 are arranged on the right door body unlocking mounting seat 501, the right door body unlocking lever 503 is rotatably arranged on the right door body unlocking rotating shaft 502, the other end of the right manual unlocking cable 404 is connected with one end of the right door body unlocking lever 503 through the right door body cable seat 504, and the right door body unlocking reset spring 505 is arranged between the right door body cable seat 504 and the right door body unlocking lever 503.

[0086] The main body unlocking seat 601 is arranged on the main body frame 8, the main body unlocking rotating shaft 602 is arranged on the main body unlocking seat 601, the main body unlocking lever 603 is rotatably arranged on the main body unlocking rotating shaft 602, one end of the main body unlocking lever 603 is connected with one end of the main body unlocking cable 604 away from the right door body unlocking lever 503, and the other end of the main body unlocking cable 604 is connected with one end of the right unlocking lever 702.

[0087] In specific implementation, since the right sliding door assembly 10 is arranged on the side of the main body frame 8 away from the door lock device 3, the right door manual unlocking device 4 needs to operate the right conversion device 5 through the main body unlocking lever 603.

[0088] The right door body unlocking mounting seat 501 is arranged on the right sliding door assembly 10, the right door body unlocking rotating shaft 502 and the right door body cable seat 504 are arranged on the right door body unlocking mounting seat 501, the right door body unlocking lever 503 is rotatably arranged on the right door body unlocking rotating shaft 502, the other end of the right manual unlocking cable 404 is connected with one end of the right door body unlocking lever 503 through the right door body cable seat 504, and the right door body unlocking reset spring 505 is arranged between the right door body cable seat 504 and the right door body unlocking lever 503. When no external force is applied, the right door body unlocking reset spring 504 can arrange the right door body unlocking lever 503 and the main body unlocking lever 604 at an angle, so as to avoid mutual influence between the right door body unlocking lever 503 and the main body unlocking lever 604 when the right sliding door assembly 10 moves.

[0089] When the right manual unlocking lever 403 is rotated in the unlocking direction, the right manual unlocking cable 404 can drive the right door body unlocking lever 503 to rotate in the unlocking direction, the right door body unlocking lever 503 drives the main body unlocking lever 603 to rotate in the unlocking direction, the main body unlocking cable 604 pulls the right unlocking lever 702 to rotate in the unlocking direction, and finally the right unlocking lever 702 drives the locking pin hook 3041 of the lock rod 304 to separate from the door lock pin 206.

[0090] As preferred in the embodiment, the door lock bolt 206 is provided with a sleeve.

[0091] In implementation, in order to ensure the smooth separation of the bolt hook 3041 from the door lock bolt 206 and the smooth hooking of the bolt hook 3041 with the door lock bolt 206 to realize locking, the door lock bolt 206 is provided with a sleeve, which can convert the sliding friction between the bolt hook 3041 and the door lock bolt 206 into rolling friction, effectively reducing the friction between the bolt hook 3041 and the door lock bolt 206.

[0092] From the above description, the beneficial effects of the utility model are that: a door lock linkage system of a double-opening half-high platform door combined with synchronous belt driving is provided, which can realize reliable locking of double doors, compared with the door lock system of the traditional single-door single-lock half-high platform door, can reduce one locking point, improve system synchronization and stability while reducing cost, and through the manual unlocking device on the arbitrary sliding door, the two sliding doors in the same frame can be synchronously and linkage unlocked, the operability is greatly improved, and the emergency escape demand of the high-speed rail double-opening door half-high platform door can be better met.

[0093] It is easy for those skilled in the art to understand that the above-mentioned embodiments can be freely combined and superimposed without conflict.

[0094] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A door lock linkage system for a double-opening, half-height platform screen door, characterized in that: The left and right sliding door assemblies are provided on the left and right ends of the main body frame respectively, and can move synchronously and reversely relative to the main body frame. The main body frame is provided with a door lock device for limiting the movement of the left sliding door assembly. The left sliding door assembly is provided with a left door manual unlocking device, which drives the door lock device through a left conversion device to release the movement limitation of the left sliding door assembly. The right sliding door assembly is provided with a right door manual unlocking device, which drives the door lock device through a right conversion device to release the movement limitation of the left sliding door assembly.

2. The door latch linkage system of claim 1, wherein: The door lock device comprises a door lock mounting seat, an unlocking driver, a door lock rotating shaft and a lock rod, the door lock mounting seat is arranged on the main body frame, the unlocking driver and the door lock rotating shaft are arranged on the door lock mounting seat, the lock rod is rotatably arranged on the door lock rotating shaft, and a door lock pin is correspondingly arranged on the left sliding door assembly. One end of the lock rod is connected with the movable part of the unlocking driver, the other end of the lock rod is provided with a pin hook, and the unlocking driver can drive the lock rod to rotate around the door lock rotating shaft. When the door lock device is in the locked state, the pin hook of the lock rod and the door lock pin form a hooking and fixing. When the door lock device is in the unlocked state, the pin hook of the lock rod and the door lock pin are separated.

3. The door latch linkage system of claim 2, wherein: The door lock device further comprises a left door unlocking mechanism, the left door unlocking mechanism comprises a left unlocking rotating shaft and a left unlocking push block, the left unlocking rotating shaft is arranged on the door lock mounting seat, and the left unlocking push block is rotatably arranged on the left unlocking rotating shaft; when the left unlocking push block is driven to rotate in the unlocking direction, the left unlocking push block can drive the pin hook of the lock rod to separate from the door lock pin.

4. The door latch linkage system of claim 3, wherein: The door lock device further comprises a right door unlocking mechanism, the right door unlocking mechanism comprises a right unlocking rotating shaft and a right unlocking push block, the right unlocking rotating shaft is arranged on the door lock mounting seat, and the right unlocking push block is rotatably arranged on the right unlocking rotating shaft; when the right unlocking push block is driven to rotate in the unlocking direction, the right unlocking push block can drive the pin hook of the lock rod to separate from the door lock pin.

5. The door latch linkage system of claim 4, wherein: The left door manual unlocking device comprises a left door manual unlocking seat, a left manual unlocking rotating shaft, a left manual unlocking push rod and a left manual unlocking cable, the left door manual unlocking seat is arranged on the left sliding door assembly, the left manual unlocking rotating shaft is arranged on the left door manual unlocking seat, the left manual unlocking push rod is rotatably arranged on the left manual unlocking rotating shaft, and one end of the left manual unlocking push rod is connected with one end of the left manual unlocking cable.

6. The door latch linkage system of claim 5, wherein: The left conversion device comprises a left door body unlocking mounting seat, a left door body unlocking rotating shaft, a left door body unlocking lever, a left door body cable seat and a left door body unlocking reset spring. The left door body unlocking mounting seat is arranged on the left sliding door assembly. The left door body unlocking rotating shaft and the left door body cable seat are arranged on the left door body unlocking mounting seat. The left door body unlocking lever is rotatably arranged on the left door body unlocking rotating shaft. The other end of the left manual unlocking cable is connected with one end of the left door body unlocking lever through the left door body cable seat. The left door body unlocking reset spring is arranged between the left door body cable seat and the left door body unlocking lever.

7. The door latch linkage system of claim 6, wherein: The right door manual unlocking device comprises a right door manual unlocking seat, a right manual unlocking rotating shaft, a right manual unlocking lever and a right manual unlocking cable. The right door manual unlocking seat is arranged on the right sliding door assembly. The right manual unlocking rotating shaft is arranged on the right door manual unlocking seat. The right manual unlocking lever is rotatably arranged on the right manual unlocking rotating shaft. One end of the right manual unlocking lever is connected with one end of the right manual unlocking cable.

8. The door latch linkage system of claim 7, wherein: The right conversion device comprises a right door body unlocking mounting seat, a right door body unlocking rotating shaft, a right door body unlocking lever, a right door body cable seat, a right door body unlocking reset spring, a main body unlocking seat, a main body unlocking rotating shaft, a main body unlocking lever and a main body unlocking cable. The right door body unlocking mounting seat is arranged on the right sliding door assembly. The right door body unlocking rotating shaft and the right door body cable seat are arranged on the right door body unlocking mounting seat. The right door body unlocking lever is rotatably arranged on the right door body unlocking rotating shaft. The other end of the right manual unlocking cable is connected with one end of the right door body unlocking lever through the right door body cable seat. The right door body unlocking reset spring is arranged between the right door body cable seat and the right door body unlocking lever. The main body unlocking seat is arranged on the main body frame. The main body unlocking rotating shaft is arranged on the main body unlocking seat. The main body unlocking lever is rotatably arranged on the main body unlocking rotating shaft. One end of the main body unlocking lever, which is away from the right door body unlocking lever, is connected with one end of the main body unlocking cable. The other end of the main body unlocking cable is connected with one end of the right unlocking lever.

9. A door locking linkage system according to any one of claims 2 to 8, wherein: The door lock pin is provided with a sleeve.

10. The door lock linkage system of any one of claims 2-8, wherein: The unlocking driver is an electromagnetic unlocking driver.

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