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

Abstract

The invention 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 invention relates to the technical field of rail transit platform doors, and in particular to a door lock linkage system for double-opening half-height platform doors. Background Art

[0002] Existing fixed half-height platform doors are usually in the form of a fixed side box with a sliding door. Each sliding door is equipped with a set of manual unlocking devices, and each sliding door is unlocked independently. The double-opening half-height platform door is a new type of high-speed railway platform door. It is in the form of 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-opening half-height platform door are driven by a motor and a closed-loop synchronous belt, and can achieve synchronous reverse movement, which solves the stability and safety problems caused by the poor synchronization of traditional sliding doors. At the same time, with the mobile main frame, it can achieve the door opening function of matching high-speed railway platform doors of different models.

[0003] However, the sliding door structure of the double-opening half-height platform door with synchronous reverse movement has brought technical difficulties to the locking and unlocking system. The single-door single-lock door locking system and unlocking device of the traditional half-height platform door can no longer meet the locking and unlocking requirements of this type of platform door. Possible problems include: when the sliding door is automatically running, the two locking systems need to be unlocked synchronously, which has poor stability and safety; one manual unlocking can only unlock one sliding door independently, and cannot be linked. Both sliding doors must be unlocked synchronously to release the locked state, which has poor operability and safety and cannot fully meet the needs of emergency escape.

[0004] Therefore, a linkage door lock system suitable for double-opening half-height platform doors is needed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a door lock linkage system for double-opening half-height platform doors which has a reasonable structure, low cost, strong operability and high safety.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a door lock linkage system for a double-opening half-height platform door, comprising a main frame, a left sliding door assembly and a right sliding door assembly, wherein the left sliding door assembly and the right sliding door assembly are respectively arranged at the left and right ends of the main frame, and the left sliding door assembly and the right sliding door assembly can perform synchronous reverse movement relative to the main frame;

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

[0008] The left sliding door assembly is provided with a left door manual unlocking device, and the left door manual unlocking device drives the door lock device through the left conversion device, so that the door lock device releases the movement restriction on the left sliding door assembly;

[0009] The right sliding door assembly is provided with a right door manual unlocking device, and the right door manual unlocking device drives the door lock device through the right conversion device, so that the door lock device releases the movement restriction on the left sliding door assembly.

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

[0011] One end of the lock rod is connected to the 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 shaft;

[0012] When the door lock device is in a locked state, the lock pin hook of the lock rod and the door lock pin form a hook fit and fixation;

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

[0014] Furthermore, the door lock device also includes a left door unlocking mechanism, which includes a left unlocking shaft and a left unlocking dial block, the left unlocking shaft is arranged on the door lock mounting seat, and the left unlocking dial block is rotatably arranged on the left unlocking shaft; when the left unlocking dial block is driven to rotate in the unlocking direction, the left unlocking dial block can drive the lock pin hook of the lock rod to separate from the door lock lock pin.

[0015] Furthermore, the door lock device also includes a right door unlocking mechanism, which includes a right unlocking shaft and a right unlocking block, wherein the right unlocking shaft is arranged on the door lock mounting seat, and the right unlocking block is rotatably arranged on the right unlocking shaft; when the right unlocking block is driven to rotate in the unlocking direction, the right unlocking block can drive the lock pin hook of the lock rod to separate from the door lock lock pin.

[0016] Furthermore, the left door manual unlocking device includes a left door manual unlocking seat, a left manual unlocking shaft, a left manual unlocking lever and a left manual unlocking cable. The left door manual unlocking seat is arranged on the left sliding door assembly, the left manual unlocking shaft is arranged on the left door manual unlocking seat, the left manual unlocking lever is rotatably arranged on the left manual unlocking shaft, and one end of the left manual unlocking lever is connected to one end of the left manual unlocking cable.

[0017] Furthermore, the left conversion device includes a left door body unlocking mounting seat, a left door body unlocking shaft, a left door body unlocking lever, a left door body cable seat and a left door body unlocking return spring, the left door body unlocking mounting seat is arranged on the left sliding door assembly, the left door body unlocking 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 shaft, the other end of the left manual unlocking cable passes through the left door body cable seat and is connected to one end of the left door body unlocking lever, and the left door body unlocking return spring is arranged between the left door body cable seat and the left door body unlocking lever.

[0018] Furthermore, the right door manual unlocking device includes a right door manual unlocking seat, a right manual unlocking 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 shaft is arranged on the right door manual unlocking seat, the right manual unlocking lever is rotatably arranged on the right manual unlocking shaft, and one end of the right manual unlocking lever is connected to one end of the right manual unlocking cable.

[0019] Further, the right conversion device includes a right door body unlocking mounting seat, a right door body unlocking shaft, a right door body unlocking lever, a right door body cable seat, a right door body unlocking return spring, a main body unlocking seat, a main body unlocking shaft, a main body unlocking lever and a main body unlocking cable;

[0020] The right door unlocking mounting seat is arranged on the right sliding door assembly, the right door unlocking shaft and the right door cable seat are arranged on the right door unlocking mounting seat, the right door unlocking lever is rotatably arranged on the right door unlocking shaft, the other end of the right manual unlocking cable passes through the right door cable seat and is connected to one end of the right door unlocking lever, and the right door unlocking return spring is arranged between the right door cable seat and the right door unlocking lever;

[0021] The main body unlocking seat is arranged on the main body frame, the main body unlocking shaft is arranged on the main body unlocking seat, the main body unlocking lever is rotatably arranged on the main body unlocking shaft, the main body unlocking lever is connected to one end of the main body unlocking cable at one end away from the right door body unlocking lever, and the other end of the main body unlocking cable is connected to one end of the right unlocking block.

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

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

[0024] The beneficial effects of the present invention are: providing a door lock linkage system for double-opening half-height platform doors that can be combined with a synchronous belt drive, which can realize the reliable locking function of the double doors. Compared with the traditional door lock system of a single door with a single lock of a half-height platform door, it can reduce one locking point, improve system synchronization and stability while reducing costs, and synchronously unlock the two sliding doors in the same frame through the manual unlocking device on any sliding door, which greatly improves the operability and can better meet the emergency escape needs of the high-speed railway double-opening half-height platform door. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific structure of the present invention is described in detail below in conjunction with the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the door lock linkage system of the double-opening half-height platform door of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the left door manual unlocking device and the left conversion device of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the right door manual unlocking device and the right conversion device of the present invention;

[0029] Figure 4 for Figure 1 Schematic diagram of the local structure of A;

[0030] Figure 5 This is a state diagram of the double-opening half-height platform door of the present invention when it is closed;

[0031] Figure 6 This is a state diagram of the double-opening half-height platform door of the present invention when the door is opened;

[0032] 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 frame; 9-left sliding door assembly; 10-right sliding door assembly;

[0033] 101-left door manual unlocking seat; 102-left manual unlocking shaft; 103-left manual unlocking lever; 104-left manual unlocking cable;

[0034] 201-left door unlocking mounting seat; 202-left door unlocking shaft; 203-left door unlocking lever; 204-left door cable seat; 205-left door unlocking return spring; 206-door lock pin;

[0035] 301-door lock mounting seat; 302-unlocking driver; 303-door lock shaft; 304-locking rod; 3041-locking pin hook; 3042-limiting support arm; 306-left unlocking dial block; 307-limiting stop block;

[0036] 401-right door manual unlocking seat; 402-right manual unlocking shaft; 403-right manual unlocking lever; 404-right manual unlocking cable;

[0037] 501-right door unlocking mounting seat; 502-right door unlocking shaft; 503-right door unlocking lever; 504-right door cable seat; 505-right door unlocking return spring;

[0038] 601-main body unlocking seat; 602-main body unlocking shaft; 603-main body unlocking lever; 604-main body unlocking cable;

[0039] 701-right unlocking shaft; 702-right unlocking block. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to 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 present invention. In this specification, the schematic representation 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0046] Example

[0047] See also Figures 1 to 6 The present embodiment provides a door lock linkage system for a double-opening half-height platform door, comprising a main frame 8, a left sliding door assembly 9 and a right sliding door assembly 10, wherein the left sliding door assembly 9 and the right sliding door assembly 10 are respectively arranged at the left and right ends of the main frame 8, and the left sliding door assembly 9 and the right sliding door assembly 10 can perform synchronous reverse movement relative to the main frame 8;

[0048] The main 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;

[0049] The left sliding door assembly 9 is provided with a left door manual unlocking device 1, and the left door manual unlocking device 1 drives the door lock device 3 through the left conversion device, so that the door lock device 3 releases the movement restriction on the left sliding door assembly 9;

[0050] The right sliding door assembly 10 is provided with a right door manual unlocking device 4 , and the right door manual unlocking device 4 drives the door lock device 3 through the right conversion device 5 , so that the door lock device 3 releases the movement restriction on the left sliding door assembly 9 .

[0051] In this 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 in the closed state, the left sliding door assembly 9 extends from the left end of the main frame 8, and the right sliding door assembly 10 extends from the right end of the main frame 8; when the door is in the open state, the left sliding door assembly 9 and the right sliding door assembly 10 are both stored inside the main frame 8. A driving motor and a synchronous structure are arranged inside the main frame 10, and 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 movements relative to the main frame 8, thereby realizing automatic door opening / closing actions.

[0052] In order to prevent the left sliding door assembly 9 and the right sliding door assembly 10 from being accidentally opened when not necessary, the main frame 8 is provided with a door lock device 4, which is used to limit 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 by a synchronous structure, when the door lock device 3 locks the left sliding door assembly 9, the right sliding door assembly 10 is also unable to open the door.

[0053] In order to meet the needs of emergency escape, the left sliding door assembly 9 is provided with a left door manual unlocking device 1, which drives the door lock device 3 through the left conversion device 2, so that the door lock device 3 releases the movement restriction on the left sliding door assembly 9; the right sliding door assembly 10 is provided with a right door manual unlocking device 4, which drives the door lock device through the right conversion device 5, so that the door lock device 3 releases the movement restriction on the left sliding door assembly 9.

[0054] 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, which greatly improves the operability of emergency door opening.

[0055] As a preferred embodiment of the present invention, the door lock device 3 includes a door lock mounting seat 301, an unlocking driver 302, a door lock shaft 303 and a locking rod 304. The door lock mounting seat 301 is arranged on the main frame 8, the unlocking driver 302 and the door lock shaft 303 are arranged on the door lock mounting seat 301, the locking rod 304 is rotatably arranged on the door lock shaft 303, and a door lock pin 206 is correspondingly arranged on the left sliding door assembly 9;

[0056] One end of the lock rod 304 is connected to the movable part of the unlocking driver 302, and the other end of the lock rod 304 is provided with a lock pin hook 3041, and the unlocking driver 302 can drive the lock rod 304 to rotate around the door lock shaft 303;

[0057] When the door lock device 3 is in a locked state, the lock pin hook 3041 of the lock rod 304 is hooked and fixed with the door lock pin 206;

[0058] When the door lock device 3 is in the unlocked state, the lock pin hook 3041 of the lock rod 304 is separated from the door lock pin 206 .

[0059] During specific implementation, by respectively setting the door lock device 3 on the main frame 8 and correspondingly setting the door lock pin 206 on the left sliding door assembly 9, the left sliding door assembly 9 can be locked by the door lock device 3.

[0060] The door lock device 3 includes a door lock mounting seat 301, an unlocking driver 302, a door lock shaft 303 and a locking rod 304. The door lock mounting seat 301 is arranged on the main frame 8, the unlocking driver 302 and the door lock shaft 303 are arranged on the door lock mounting seat 301, and the locking rod 304 is rotatably arranged on the door lock shaft 303. One end of the locking rod 304 is connected to the movable part of the unlocking driver 302, and the other end of the locking rod 304 is provided with a locking pin hook 3041, and a door lock pin 206 is correspondingly arranged on the left sliding door assembly 9.

[0061] By sending a door opening / closing signal to the unlocking driver 302, the movable part of the unlocking driver 302 can drive the locking rod 304 to rotate in the unlocking direction / locking direction, so that the lock pin hook 3041 of the locking rod 304 is separated from the door lock pin 206 to achieve unlocking, and then the door opening action is performed, or after the door closing action is completed, the lock pin hook 3041 of the locking rod 304 is hooked and fixed with the door lock pin 206 to achieve locking.

[0062] Preferably, the unlocking driver 302 is an electromagnet unlocking driver, which can control the extension or retraction of the movable part according to the electrical signal, and the movable part is movably connected to one end of the lock rod 304, so as to drive the lock rod 304 to rotate around the door lock shaft 303 in the unlocking direction or the locking direction.

[0063] In order to prevent the locking rod 304 from excessively rotating in the upward locking direction and causing the door to be unable to lock, the door lock mounting base 301 is provided with a limit block 307, and the locking rod 304 is correspondingly provided with a limit support arm 3042. The limit block 307 blocks the limit support arm 3042, which can effectively prevent the locking rod 304 from excessively rotating in the upward locking direction and ensure the stable operation of the system.

[0064] As a preference in this embodiment, the door lock device 3 also includes a left door unlocking mechanism, and the left door unlocking includes a left unlocking shaft and a left unlocking dial block 306, and the left unlocking shaft is arranged on the door lock mounting seat 301, and the left unlocking dial block 306 is rotatably arranged on the left unlocking shaft; when the left unlocking dial block 306 is driven to rotate in the unlocking direction, the left unlocking dial block 306 can drive the locking rod 304 to rotate in the unlocking direction, so that the lock pin hook 3041 is separated from the door lock pin 206.

[0065] In specific implementation, the left unlocking block 306 is arranged above one end of the lock rod 304 provided with a lock pin hook 3041 through the left unlocking shaft. When the left unlocking block 306 is driven to rotate around the left unlocking shaft in the unlocking direction by the left door manual unlocking device 1 arranged in the left sliding door assembly 9, the left unlocking block 306 can drive the lock rod 304 to rotate in the unlocking direction together, so that the lock pin hook 3041 is separated from the door lock pin 206, thereby realizing unlocking, which is very convenient.

[0066] The portion of the door lock shaft 303 that passes through the other side of the door lock mounting seat 301 can be used as a left unlocking shaft to simplify the overall structural design.

[0067] As a preference in this embodiment, the door lock device 3 also includes a right door unlocking mechanism 7, and the right door unlocking includes a right unlocking shaft 701 and a right unlocking block 702, the right unlocking shaft 701 is arranged on the door lock mounting seat 301, and the right unlocking block 702 is rotatably arranged on the right unlocking 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 pin hook 3041 of the lock rod 304 to separate from the door lock pin 206.

[0068] In specific implementation, the right unlocking block 702 is arranged below the end where the lock rod 304 is connected to the unlocking driver 302 through the right unlocking shaft 701. When the right door manual unlocking device 4 arranged in the right sliding door assembly 10 drives the right unlocking block 702 to rotate in the unlocking direction around the right unlocking shaft 701, the right unlocking block 702 can drive the lock rod 304 to rotate in the unlocking direction together, so that the lock pin hook 3041 is separated from the door lock pin 206, thereby realizing unlocking, which is very convenient.

[0069] As a preference in this embodiment, the left door manual unlocking device 1 includes a left door manual unlocking seat 101, a left manual unlocking 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 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 shaft 102, and one end of the left manual unlocking lever 103 is connected to one end of the left manual unlocking cable 104.

[0070] During specific implementation, the left door manual unlocking seat 101 is arranged on the left sliding door assembly 9, and the left door manual unlocking seat 101 is provided with a left manual unlocking shaft 102, and the left manual unlocking lever 103 is rotatably arranged on the left manual unlocking shaft 102, and the left manual unlocking lever 103 is in a "T" shape. The left manual unlocking lever 103 includes a left manual unlocking lever first arm and a left manual unlocking lever second arm, and the left manual unlocking lever second arm is connected to the middle part of the left manual unlocking lever first arm, and the left manual unlocking lever second arm is approximately perpendicular to the left manual unlocking lever first arm, and the left manual unlocking cable 104 is connected to the end of the left manual unlocking lever second arm away from the left manual unlocking lever first arm.

[0071] The left manual unlocking lever 103 and the left manual unlocking shaft 102 are connected at the intersection of the first arm of the left manual unlocking lever and the second arm of the left manual unlocking lever, which ensures the structural strength of the left manual unlocking lever 103 while facilitating the user to apply rotational external force to the left manual unlocking lever 103.

[0072] When rotating the left manual unlocking lever 103, the left manual unlocking lever 103 can be easily rotated in the unlocking direction around the left manual unlocking shaft 102 by applying a pulling force to one end of the first arm of the left manual unlocking lever and applying a pushing force to the other end of the first arm of the left manual unlocking lever.

[0073] As a preference in this embodiment, the left conversion device 2 includes a left door body unlocking mounting seat 201, a left door body unlocking shaft 202, a left door body unlocking lever 203, a left door body cable seat 204 and a left door body unlocking return spring 205. The left door body unlocking mounting seat 201 is arranged on the left sliding door assembly 9, the left door body unlocking 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 shaft 202, the other end of the left manual unlocking cable 104 passes through the left door body cable seat 204 and is connected to one end of the left door body unlocking lever 203, and the left door body unlocking return spring 205 is arranged between the left door body cable seat 204 and the left door body unlocking lever 203.

[0074] During specific implementation, since the left sliding door assembly 9 is disposed on a side of the main frame 8 close to the door lock device 3 , the left door manual unlocking device 1 can directly operate the left conversion device 2 .

[0075] A left conversion device 2 is arranged at the right end of the left sliding door assembly 9 near the door lock pin 206, and the left conversion device 2 includes a left door body unlocking mounting seat 201, a left door body unlocking shaft 202, a left door body unlocking lever 203, a left door body cable seat 204 and a left door body unlocking return spring 205. The left door body unlocking mounting seat 201 is arranged on the left sliding door assembly 9, the left door body unlocking shaft 202 and the left door body cable seat 204 are arranged on the left door body unlocking mounting seat 201, and the left door body unlocking lever 203 is rotatably arranged on the left door body unlocking shaft On the shaft 202, the other end of the left manual unlocking cable 104 passes through the left door body cable seat 204 and is connected to one end of the left door body unlocking lever 203, 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 block 306 of the left door unlocking mechanism, thereby avoiding mutual influence between the left door body unlocking lever 203 and the left unlocking block 306 when the left sliding door assembly 9 moves.

[0076] In order to simplify the structural layout, the door lock pin 206 can be set on the left door body unlocking mounting seat 201, and the left door body unlocking shaft 202 is set on the side of the door lock pin 206 away from the unlocking direction.

[0077] The left door unlock lever 203 is in an "L" shape, and includes a first arm of the left door unlock lever and a second arm of the left door unlock lever. One end of the first arm of the left door unlock lever is connected to one end of the second arm of the left door unlock lever, and the first arm of the left door unlock lever is substantially perpendicular to the second arm of the left door unlock lever. The left manual unlock cable 104 is connected to one end of the first arm of the left door unlock lever away from the second arm of the left manual unlock lever, so that the user can apply less force to unlock the door lock device 3.

[0078] 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, and the left door body unlocking lever 203 can drive the left unlocking block 306 to rotate in the unlocking direction, thereby driving the lock pin hook 3041 of the lock rod 304 to separate from the door lock pin 206.

[0079] As a preference in this embodiment, the right door manual unlocking device 4 includes a right door manual unlocking seat 401, a right manual unlocking 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 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 shaft 402, and one end of the right manual unlocking lever 403 is connected to one end of the right manual unlocking cable 404.

[0080] During specific implementation, the right door manual unlocking seat 401 is arranged on the right sliding door assembly 10, and the right door manual unlocking seat 401 is provided with a right manual unlocking shaft 402, and the right manual unlocking lever 403 is rotatably arranged on the right manual unlocking shaft 402, and the right manual unlocking lever 403 is in a "T" shape. The right manual unlocking lever 403 includes a right manual unlocking lever first arm and a right manual unlocking lever second arm, and the right manual unlocking lever second arm is connected to the middle part of the right manual unlocking lever first arm, and the right manual unlocking lever second arm is approximately perpendicular to the right manual unlocking lever first arm, and the right manual unlocking cable is connected to the end of the right manual unlocking lever second arm away from the right manual unlocking lever first arm.

[0081] The right manual unlocking lever 403 and the right manual unlocking shaft 402 are connected at the intersection of the first arm of the right manual unlocking lever and the second arm of the right manual unlocking lever, which ensures the structural strength of the right manual unlocking lever 403 while facilitating the user to apply rotational external force to the right manual unlocking lever 403.

[0082] When rotating the right manual unlocking lever 403, by applying a pulling force to one end of the first arm of the right manual unlocking lever and applying a pushing force to the other end of the first arm of the right manual unlocking lever, the right manual unlocking lever 403 can be easily rotated in the unlocking direction around the right manual unlocking shaft 402.

[0083] As a preferred embodiment of the present invention, the right conversion device 5 includes a right door unlocking mounting seat 501, a right door unlocking shaft 502, a right door unlocking lever 503, a right door cable seat 504, a right door unlocking return spring 505, a main body unlocking seat 601, a main body unlocking shaft 602, a main body unlocking lever 603 and a main body unlocking cable 604;

[0084] The right door unlocking mounting seat 501 is arranged on the right sliding door assembly 10, the right door unlocking shaft 502 and the right door cable seat 504 are arranged on the right door unlocking mounting seat 501, the right door unlocking lever 503 is rotatably arranged on the right door unlocking shaft 502, the other end of the right manual unlocking cable 404 passes through the right door cable seat 504 and is connected to one end of the right door unlocking lever 503, and the right door unlocking reset spring 505 is arranged between the right door cable seat 504 and the right door unlocking lever 503;

[0085] The main body unlocking seat 601 is arranged on the main body frame 8, the main body unlocking 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 shaft 602, and the main body unlocking lever 603 is connected to one end of the main body unlocking cable 604 at one end away from the right door body unlocking lever 503, and the other end of the main body unlocking cable 604 is connected to one end of the right unlocking block 702.

[0086] During specific implementation, since the right sliding door assembly 10 is disposed on a side of the main 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 unlocking lever 603 .

[0087] A right door unlocking mounting seat 501 is provided on the right sliding door assembly 10, wherein a right door unlocking rotating shaft 502 and a right door cable seat 504 are provided on the right door unlocking mounting seat 501, a right door unlocking lever 503 is rotatably provided on the right door unlocking rotating shaft 502, the other end of the right manual unlocking cable 404 passes through the right door cable seat 504 and is connected to one end of the right door unlocking lever 503, and the right door unlocking reset spring 505 is provided between the right door cable seat 504 and the right door unlocking lever 503. When no external force is applied, the right door unlocking reset spring 504 can make the right door unlocking lever 503 and the main body unlocking lever 604 be arranged at an angle, so as to avoid the right door unlocking lever 503 and the main body unlocking lever 604 from affecting each other when the right sliding door assembly 10 moves.

[0088] 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, so that the right door body unlocking lever 503 drives the main body unlocking block 603 to rotate in the unlocking direction, and then pulls the right unlocking block 702 to rotate in the unlocking direction through the main body unlocking cable 604, and finally the right unlocking block 702 drives the lock pin hook 3041 of the lock rod 304 to separate from the door lock pin 206.

[0089] As a preference in this embodiment, the door lock pin 206 is provided with a sleeve.

[0090] During specific implementation, in order to ensure the smooth separation of the lock pin hook 3041 and the door lock pin 206, and that the lock pin hook 3041 can smoothly form a hook and fix with the door lock pin 206 to achieve locking, the door lock pin 206 is provided with a sleeve, which can convert the sliding friction between the lock pin hook 3041 and the door lock pin 206 into rolling friction, thereby effectively reducing the friction between the lock pin hook 3041 and the door lock pin 206.

[0091] From the above description, it can be seen that the beneficial effects of the present invention are: it provides a door lock linkage system for double-opening half-height platform doors that can be combined with a synchronous belt drive, which can realize the reliable locking function of the double doors. Compared with the traditional half-height platform door's single-door and single-lock door lock system, it can reduce one locking point, improve system synchronization and stability while reducing costs, and synchronize and unlock the two sliding doors in the same frame through the manual unlocking device on any sliding door, which greatly improves the operability and can better meet the emergency escape needs of the high-speed rail double-door half-height platform doors.

[0092] It is easy for those skilled in the art to understand that the above-mentioned implementation modes can be freely combined and superimposed without conflict.

[0093] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A door lock linkage system for double-opening half-height platform doors, characterized in that: It comprises a main frame, a left sliding door assembly and a right sliding door assembly, wherein the left sliding door assembly and the right sliding door assembly are respectively arranged at the left and right ends of the main frame, and the left sliding door assembly and the right sliding door assembly can perform synchronous reverse movement relative to the main frame; The main frame is provided with a door lock device, and the door lock device is used to limit the movement of the left sliding door assembly; The left sliding door assembly is provided with a left door manual unlocking device, and the left door manual unlocking device drives the door lock device through the left conversion device, so that the door lock device releases the movement restriction on the left sliding door assembly; The right sliding door assembly is provided with a right door manual unlocking device, and the right door manual unlocking device drives the door lock device through the right conversion device, so that the door lock device releases the movement restriction on the left sliding door assembly.

2. The door lock linkage system according to claim 1, characterized in that: The door lock device comprises a door lock mounting seat, an unlocking driver, a door lock shaft and a locking rod, wherein the door lock mounting seat is arranged on the main frame, the unlocking driver and the door lock shaft are arranged on the door lock mounting seat, the locking rod is rotatably arranged on the door lock shaft, and a door lock pin is correspondingly arranged on the left sliding door assembly; One end of the lock rod is connected to the 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 shaft; When the door lock device is in a locked state, the lock pin hook of the lock rod and the door lock pin form a hook fit and fixation; When the door lock device is in an unlocked state, the lock pin hook of the lock rod is separated from the door lock pin.

3. The door lock linkage system according to claim 2, characterized in that: The door lock device also includes a left door unlocking mechanism, which includes a left unlocking shaft and a left unlocking dial block. The left unlocking shaft is arranged on the door lock mounting seat, and the left unlocking dial block is rotatably arranged on the left unlocking shaft; when the left unlocking dial block is driven to rotate in the unlocking direction, the left unlocking dial block can drive the lock pin hook of the lock rod to separate from the door lock lock pin.

4. The door lock linkage system according to claim 3, characterized in that: The door lock device also includes a right door unlocking mechanism, which includes a right unlocking shaft and a right unlocking block. The right unlocking shaft is arranged on the door lock mounting seat, and the right unlocking block is rotatably arranged on the right unlocking shaft; when the right unlocking block is driven to rotate in the unlocking direction, the right unlocking block can drive the lock pin hook of the lock rod to separate from the door lock lock pin.

5. The door lock linkage system according to claim 4, characterized in that: The left door manual unlocking device includes a left door manual unlocking seat, a left manual unlocking shaft, a left manual unlocking lever and a left manual unlocking cable. The left door manual unlocking seat is arranged on the left sliding door assembly, the left manual unlocking shaft is arranged on the left door manual unlocking seat, the left manual unlocking lever is rotatably arranged on the left manual unlocking shaft, and one end of the left manual unlocking lever is connected to one end of the left manual unlocking cable.

6. The door lock linkage system according to claim 5, characterized in that: The left conversion device includes a left door body unlocking mounting seat, a left door body unlocking shaft, a left door body unlocking lever, a left door body cable seat and a left door body unlocking return spring. The left door body unlocking mounting seat is arranged on the left sliding door assembly, the left door body unlocking 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 shaft, the other end of the left manual unlocking cable passes through the left door body cable seat and is connected with one end of the left door body unlocking lever, and the left door body unlocking return spring is arranged between the left door body cable seat and the left door body unlocking lever.

7. The door lock linkage system according to claim 6, characterized in that: The right door manual unlocking device includes a right door manual unlocking seat, a right manual unlocking 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 shaft is arranged on the right door manual unlocking seat, the right manual unlocking lever is rotatably arranged on the right manual unlocking shaft, and one end of the right manual unlocking lever is connected to one end of the right manual unlocking cable.

8. The door lock linkage system according to claim 7, characterized in that: The right conversion device includes a right door unlocking mounting seat, a right door unlocking shaft, a right door unlocking lever, a right door cable seat, a right door unlocking return spring, a main body unlocking seat, a main body unlocking shaft, a main body unlocking lever and a main body unlocking cable; The right door unlocking mounting seat is arranged on the right sliding door assembly, the right door unlocking shaft and the right door cable seat are arranged on the right door unlocking mounting seat, the right door unlocking lever is rotatably arranged on the right door unlocking shaft, the other end of the right manual unlocking cable passes through the right door cable seat and is connected to one end of the right door unlocking lever, and the right door unlocking return spring is arranged between the right door cable seat and the right door unlocking lever; The main body unlocking seat is arranged on the main body frame, the main body unlocking shaft is arranged on the main body unlocking seat, the main body unlocking lever is rotatably arranged on the main body unlocking shaft, the main body unlocking lever is connected to one end of the main body unlocking cable at one end away from the right door body unlocking lever, and the other end of the main body unlocking cable is connected to one end of the right unlocking block.

9. The door lock linkage system according to any one of claims 1 to 8, characterized in that: The door lock pin is provided with a sleeve.

10. The door lock linkage system according to any one of claims 1 to 8, characterized in that: The unlocking driver is an electromagnet unlocking driver.

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