CN112855046B

CN112855046B - Multi-point locking mechanism for door system

Info

Publication number: CN112855046B
Application number: CN202110351088.1A
Authority: CN
Inventors: 朱其豹; 卜文能; 胡聪聪; 陈辉; 丁瑞权
Original assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Current assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2024-11-19
Anticipated expiration: 2041-03-31
Also published as: EP4317644A4; WO2022205591A1; CN112855046A; EP4317644A1

Abstract

The present invention discloses a multi-point locking mechanism for a door system, including a driving mechanism, a guiding mechanism, a transmission mechanism, and a side locking assembly. The driving mechanism and the guiding mechanism are located above the door system, and the driving mechanism is movably connected to the guiding mechanism. The driving mechanism is constrained by the guiding mechanism to rotate a certain angle at the end of the door leaf closing and the beginning of the door leaf opening, so that the driving mechanism can lock and unlock the door system locally. The door system has at least one side with a side locking assembly, one end of the transmission mechanism is connected to the side locking assembly, and the other end is located near the driving mechanism. The driving mechanism drives the transmission mechanism to move during the rotation locking and unlocking process, and controls the locking and unlocking of the side locking assembly through the transmission mechanism. The present invention realizes multi-point locking on the top and sides of the door leaf through the dead point of the driving mechanism, the constraint between the driving mechanism and the guide rail, and the constraint of the side locking assembly on the side of the door leaf. The design structure has a good locking effect, a simple and reliable structure, small space occupation, and easy maintenance.

Description

Multi-point locking mechanism of door system

Technical Field

The invention relates to a multipoint locking mechanism of a door system, and belongs to the technical field of rail transit devices.

Background

Vehicle door systems usually have a locking device on the carrier drive, by means of which the door leaf is locked when the door leaf is closed. When the vehicle speed is high, there is a high demand for the locking strength of the door system, additional locking means are added to the side of the door system. The common side locking modes are two types, one type adopts an electric or pneumatic element to drive the locking device to lock or unlock, and the locking device needs an additional power source, has high energy consumption, complex structure, large occupied space and poor reliability.

The other type adopts a mode that the side locking device is linked with the mechanism driving device or other moving parts, and the mechanism driving device drives the door leaf to move and simultaneously drives the side locking device to lock and unlock, so that a separate power source is not needed, and the energy consumption is reduced.

However, the existing linkage related structure has the following defects:

In general, door leaf movement and side locking device movement are performed synchronously, and in order to avoid movement interference, locking and unlocking actions of the locking device are required to be faster than door leaf movement.

Disclosure of Invention

The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a multi-point locking mechanism of a door system, which improves the bearing capacity of the door system, meets the requirement of higher speed grade and solves the problems of complex structure, poor locking effect, large occupied space, difficult installation and debugging and the like of the multi-point locking mechanism in the existing door system.

The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:

The multipoint locking mechanism of the door system comprises a driving mechanism, wherein the driving mechanism is constrained to rotate for a certain angle by a guide rail at the final closing stage and the earlier opening stage of a door leaf, so that the driving mechanism can realize local locking and unlocking of the door system; simultaneously, the rotating driving mechanism drives the transmission mechanism to generate displacement, and the transmission mechanism drives the side locking assembly to lock and unlock through displacement, so that the side of the door system is provided with multi-point constraint.

As a preferable scheme, the transmission mechanism comprises a transmission shaft, a transmission fork is fixed on the transmission shaft, the transmission shaft is connected with one end of a first rotating arm, the other end of the first rotating arm is connected with one end of a first connecting rod, and the other end of the first connecting rod is connected with one end of a second rotating arm; the transmission shaft is also provided with a mounting block, the mounting block is provided with a limit column, and the transmission fork is contacted with the limit column when reset; the side locking assembly comprises a lock body, a rotatable lock fork is arranged in the lock body, a torsion spring is arranged in the lock fork, the lock fork is initially in a reset state under the action of the torsion spring, and a second roller is arranged at the rear end of the lock fork; the lock body is internally provided with a rotating shaft, an inner swing arm is arranged on the rotating shaft, the rotating shaft drives the inner swing arm to rotate, when the inner swing arm rotates in place, the front end of the inner swing arm is contacted with the second roller, one end of the rotating shaft is connected with one end of a driving shaft through a universal joint, and the other end of the driving shaft is connected with the other end of the second rotating arm; the driving mechanism is used for driving the transmission fork to rotate.

As the preferred scheme, actuating mechanism includes driving motor, and driving motor drives the lead screw and rotates, has cup jointed the lead screw nut on the lead screw, and lead screw nut one end is rotated through first pivot with the drive frame one end and is connected, and the drive frame other end is articulated mutually with drive plate one end, be equipped with the gyro wheel on the drive plate, the gyro wheel is connected with the guide rail removal, and the guide rail includes straightway, curve section, recess section, straightway, curve section, recess section connect gradually, lead screw nut cooperatees with the drive fork.

Preferably, the side locking assemblies are arranged in a plurality, the rotating shaft end of each side locking assembly is connected with the driving shaft of the next side locking assembly through a universal joint, and the driving shaft of the first side locking assembly is connected with the second rotating arm.

As the preferable scheme, the unlocking mechanism further comprises an unlocking handle, wherein the unlocking handle is rotationally connected with the transmission mechanism and used for driving the transmission mechanism to reversely move, and the transmission mechanism is provided with an unlocking elastic component and used for resetting the unlocking handle.

Preferably, the device further comprises a drive fork position maintaining mechanism, the drive fork position maintaining mechanism comprises: the mounting plate is movably connected with a limit connecting rod, and an elastic part is sleeved on the limit connecting rod; the transmission shaft is provided with a rotating block, the free end of the rotating block is rotationally connected with one end of the limiting connecting rod, and the elastic component is used for keeping acting force of the rotating block in the rotating direction.

As a preferred scheme, the driving mechanism comprises a driving motor, the driving motor drives a screw rod to rotate, a screw rod nut is sleeved on the screw rod, one end of the screw rod nut is connected with a first shaft pin, a roller is arranged at the other end of the screw rod nut, the roller is movably connected with a guide rail, the guide rail comprises a straight line section and a groove section, and the straight line section and the groove section are sequentially connected; the first shaft pin drives the driving mechanism to generate displacement.

As a preferable scheme, the transmission mechanism comprises a transmission shaft, a transmission fork is fixed on the transmission shaft and matched with the first shaft pin, the transmission shaft is connected with the middle part of a first rotating arm, and one end of the first rotating arm is connected with a first connecting rod through a universal joint; a limiting column is arranged on a shaft mounting plate at one end of the transmission shaft, and the first rotating arm 203 is contacted with the limiting column when rotating; the side locking assembly comprises a driving shaft, one end of the driving shaft is connected with the first connecting rod through a universal joint, and a bolt is arranged on the driving shaft.

Preferably, a plurality of bolts are arranged on the driving shaft.

As the preferable scheme, the device also comprises an unlocking mechanism, wherein the unlocking mechanism comprises an unlocking handle, the driving shaft is provided with the unlocking handle, and the unlocking handle drives the latch on the driving shaft to move up and down in the vertical direction.

Preferably, the device further comprises a drive fork position maintaining mechanism, the drive fork position maintaining mechanism comprises: the mounting plate is movably connected with a limit connecting rod, an elastic component is sleeved on the limit connecting rod, and the limit connecting rod is rotationally connected with the other end of the first rotating arm.

The beneficial effects are that: the multipoint locking mechanism of the door system provided by the invention has the advantages that the upper part of the door leaf passes through the dead point through the driving mechanism, and the driving mechanism is restrained by the groove sections of the guide rail, so that the upper part of the door leaf is locked; in addition, the side surface of the door leaf is restrained by the side locking assembly on the lock column or the lock catch, so that the other locking of the side surface of the door leaf is realized. Meanwhile, a plurality of side locking assemblies can be installed on the side face of the door leaf, and multi-point locking of the side face of the door leaf is achieved.

The invention uses the displacement of the driving mechanism generated in the rotary locking and unlocking stage to control the locking and unlocking of the side locking device of the door system, so that the door system has multi-point constraint and good locking effect, the locking and unlocking actions of the side locking device are carried out after the door leaf is closed and before the door leaf is opened, the risk of motion interference is avoided, and the locking is reliable.

The locking mechanism is simple in structure, small in occupied space and easy to maintain, the side locking device can adopt a universal joint, one side of the door system can be connected with a plurality of locking devices in a channeling mode, and the requirements of different locking strength are met. The locking mechanism is not only suitable for flat doors, but also suitable for bent doors, is not only suitable for single door opening, is also suitable for double door opening, is not only suitable for sliding plug doors, is also suitable for sliding doors and the like, and has good universality.

Drawings

FIG. 1 is a schematic side cross-sectional view of a multipoint locking mechanism of a door system according to a first embodiment;

FIG. 2 is a schematic view of the driving mechanism of the first embodiment;

FIG. 3 is a schematic view of the transmission mechanism of the first embodiment 1;

FIG. 4 is a schematic view of the transmission mechanism of the first embodiment 2;

FIG. 5 is a schematic view of a side locking assembly of the first embodiment;

FIG. 6 is a schematic view of the structure of the lock body of the first embodiment;

FIG. 7 is a schematic view of the structure of the unlocking mechanism of the first embodiment;

FIG. 8 is a schematic view of the structure of the fork position holding mechanism of the first embodiment;

Fig. 9 is a schematic diagram showing the cooperation of the driving mechanism, the transmission mechanism and the transmission fork position maintaining mechanism in the critical state that the transmission fork contacts with/departs from the first shaft pin when the door leaf of the first embodiment is closed/opened;

FIG. 10 is a schematic view showing the cooperation of the drive mechanism, the transmission mechanism and the transmission fork position maintaining mechanism after the door leaves of the first embodiment are closed;

FIG. 11 is a schematic view showing the engagement of the side locking posts of the door leaf with the side locking assembly in a critical condition of contact/disengagement of the locking prongs of the door leaf when the door leaf is closed/opened according to the first embodiment;

FIG. 12 is a schematic view showing the engagement of the side locking posts of the door with the side locking assembly prongs when the door is closed in the first embodiment;

FIG. 13 is a schematic view showing the engagement of the drive mechanism, the transmission mechanism, and the transmission fork position maintaining mechanism after the transmission fork is disengaged from the door leaf in the first embodiment;

FIG. 14 is a schematic side cross-sectional view of a multipoint locking mechanism of a door system according to a second embodiment;

FIG. 15 is a schematic view of the driving mechanism of the second embodiment;

FIG. 16 is a schematic view showing the cooperation of the drive mechanism, the transmission mechanism, and the fork position maintaining mechanism after the side locking assembly of the second embodiment is locked

FIG. 17 is a schematic illustration; after the side locking component of the second embodiment is unlocked, the driving mechanism, the transmission mechanism and the transmission fork position maintaining mechanism are matched with a schematic diagram;

fig. 18 is a schematic structural view of a side locking assembly and unlocking mechanism of the second embodiment.

Detailed Description

The invention will be further described with reference to specific examples.

First embodiment:

As shown in fig. 1-2, a multipoint locking mechanism of a door system according to a first embodiment, the driving mechanism 1 includes a driving motor 101, the driving motor 101 is connected with one end of a screw rod 102 through a transmission belt, a screw rod nut 103 is sleeved on the screw rod 102, one end of the screw rod nut 103 is rotatably connected with one end of a transmission frame 104 through a first shaft pin 105, the other end of the transmission frame 104 is hinged with one end of a transmission plate 106, the other end of the transmission plate 106 is connected with a door carrying frame 107, and the door carrying frame 107 is connected with a door leaf 6. The transmission plate 106 is provided with a roller 108, the roller 108 is movably connected with a guide rail 109, the guide rail 109 comprises a straight line section 1091, a curve section 1092 and a groove section 1093, the straight line section 1091, the curve section 1092 and the groove section 1093 are sequentially connected, when the roller 108 moves to the tail end of the groove section 1093, the door leaf 6 is closed in place, and the transmission frame 104 rotates to retract; when the roller 108 starts to move from the tail end of the groove section 1093, the door leaf is gradually opened through the curve section 1092 and the straight line section 1091, and the transmission frame 104 is rotated and opened.

As shown in fig. 3-4, the transmission mechanism 2 includes a transmission shaft 201, a transmission fork 202 is fixed on the transmission shaft 201, the transmission fork 202 is matched with one end of the first shaft pin 105, and when the first shaft pin 105 rotates and retracts along with the screw nut 103, the transmission fork 202 rotates downwards along with the first shaft pin 105; when the first shaft pin 105 is opened by rotation of the lead screw nut 103, the drive fork 202 is rotated upward with the first shaft pin 105 until the drive fork 202 is disengaged from the first shaft pin 105. The transmission shaft 201 is connected with one end of a first rotating arm 203, the other end of the first rotating arm 203 is connected with one end of a first connecting rod 204, and the other end of the first connecting rod 204 is connected with one end of a second rotating arm 205. The transmission shaft 201 is also provided with a mounting block 206, the mounting block 206 is provided with a limiting column 207, and the transmission fork 202 contacts with the limiting column 207 when rotating upwards.

As shown in fig. 5-6, the side locking assembly 3 includes a lock body 301, a rotatable lock fork 302 is disposed in the lock body 301, a torsion spring 303 is disposed in the lock fork 302, under the action of the torsion spring 303, the lock fork 302 is initially in a reset state, and a second roller 304 is disposed at the rear end of the lock fork 302; the lock body 302 is further internally provided with a rotating shaft 305, the rotating shaft 305 is provided with an inner swing arm 306, the rotating shaft 305 drives the inner swing arm 306 to rotate, when the inner swing arm 306 rotates in place, the front end of the inner swing arm 306 is in contact with the second roller 304, one end of the rotating shaft 305 is connected with one end of a driving shaft 307 through a universal joint, and the other end of the driving shaft 307 is connected with the other end of the second rotating arm 205.

As shown in fig. 7, the unlocking mechanism 4 includes an unlocking handle 401, where the unlocking handle 401 is rotationally connected with a transmission mechanism and is used for driving the transmission mechanism to move reversely, and the transmission mechanism is provided with an unlocking elastic component and is used for resetting the transmission mechanism moving reversely. The unlocking handle 401 can be installed on any part of a transmission mechanism such as a transmission shaft, a first transmission arm, a first connecting rod and the like, and only one part can be driven to move reversely, so that the driving shaft is driven to rotate to drive the side locking assembly to unlock. The unlocking elastic component 402, such as a torsion spring, is sleeved on the transmission shaft 201, and is in a reset state after the unlocking handle is released under the action of the torsion spring.

As shown in fig. 8, the fork position holding mechanism 5 includes: the mounting panel 501, the last removal of mounting panel 501 is connected with spacing connecting rod 502, has cup jointed elastomeric element 503 on the spacing connecting rod 502 like: a pressure spring; the transmission shaft 201 is provided with a rotating block 504, the free end of the rotating block 504 is rotationally connected with one end of the limit connecting rod 502, when the transmission fork 202 rotates upwards, the rotating block 504 is driven to rotate, the rotating block 504 drives the limit connecting rod 502 to rotate, the transmission fork 202 cannot continue to rotate upwards due to the limit post 207, and meanwhile, the elastic component 503 keeps the acting force of the rotating block 504 to continue to rotate upwards through the limit connecting rod 502, so that the transmission fork 202 is ensured to be stationary. When the transmission fork 202 rotates downwards, the rotating block 504 is driven to rotate, the rotating block 504 drives the limit connecting rod 502 to rotate, the rotation point of the transmission fork 202 passes through the maximum rotation position where the transmission plate 106 is hinged with the transmission frame 104 and cannot continue to rotate downwards, and meanwhile, the elastic component 503 keeps the acting force of the continuous downwards rotation of the rotating block 504 through the limit connecting rod 502, so that the transmission fork 202 is ensured to be locked.

Example 1:

When the door leaf is closed, the motor drives the screw rod nut on the screw rod to move towards the middle, the roller moves from the straight line section to the curve section, the curve section is restrained, the screw rod nut drives the transmission frame to move towards the middle and rotate downwards along the screw rod, as shown in fig. 9, until the first shaft pin contacts with the transmission fork to drive the transmission fork to rotate downwards together, the transmission fork drives the transmission shaft to rotate and drives the rotating block to rotate, and the rotating block drives the limit connecting rod to rotate. As shown in fig. 10, when the roller enters the groove section, the screw nut completes rotation, the first shaft pin and the transmission fork stop rotating, and as the transmission plate is hinged with the transmission frame, the transmission frame is hinged with the screw nut through the first shaft pin, the position of the first shaft pin and the transmission fork is lower than the connecting line of the hinge point of the transmission plate and the transmission frame and the center point of the screw rod, namely, the dead point is passed, and the transmission fork is driven to the final position by the first shaft pin, and the first shaft pin and the transmission fork are locked under the dead point under the action of the transmission fork position maintaining mechanism, so that the outward pulling force and the upward moving force transmitted by the door leaf through the transmission frame can be effectively blocked, and the locking effect of the door leaf is achieved. In addition, the roller stops at the tail end of the groove section, the left side and the right side of the roller are restrained by the groove section, and the locking effect of the door leaf along the direction of the screw rod is achieved.

As shown in fig. 11, when the door is closed, the lock post 601 on the side of the door 6 contacts with the lock fork to drive the lock fork to rotate, and the second roller also rotates until the door is closed, as shown in fig. 12, the lock post and the lock fork complete locking, and the second roller rotates in place. The transmission shaft drives the first rotating arm, the first connecting rod and the second rotating arm to rotate along with the rotation of the transmission fork, the second rotating arm drives the driving shaft to rotate, the driving shaft drives the rotating shaft to rotate through the universal joint, and the rotating shaft drives the inner swinging arm to rotate and contact with the second idler wheel, so that locking of the locking fork and the locking column is completed. In addition, the plurality of side locking assemblies can be connected in series through the universal joint to realize locking of a plurality of locking fork points on the door leaf.

Example 2:

when the door leaf is opened, the motor drives the screw rod nut on the screw rod to move, and the screw rod nut drives the transmission frame to rotate upwards and drives the first shaft pin and the transmission fork to rotate upwards due to the constraint of the groove section, so that the first unlocking of the door leaf is realized, and the transmission plate can be kept motionless until the transmission fork stops at the limit column as shown in fig. 9 because the transmission plate is hinged with the transmission frame, and the first shaft pin and the transmission fork are ready to be separated, so that the second unlocking of the door leaf is realized. In the upward rotation process of the transmission fork, the transmission shaft is driven to rotate, the restraint of the inner swing arm on the second roller at the rear part of the lock fork is released through the first rotating arm and other parts, and the unlocking of the side locking assembly is completed. Meanwhile, the transmission fork is kept static under the action of the transmission fork position keeping mechanism.

As shown in fig. 13, after the first pin shaft is separated from the transmission fork, the screw nut continues to rotate upwards, and in the curve section, the transmission frame rotates while driving the door leaf to open to two sides through the transmission plate and the portal frame until the roller completes the curve section stroke, the screw nut completes the rotation, and when the roller is in the straight section, the screw nut moves horizontally until the door leaf is completely opened.

As shown in fig. 11, when the door leaf is opened, the inner swing arm is separated from the second roller at the rear of the lock fork, the lock post 601 at the side of the door leaf 6 is ready to withdraw from the lock fork 302, and the lock fork is reset under the action of the torsion spring.

Example 3:

When the manual unlocking of the side door is needed, the unlocking handle is manually rotated, the unlocking handle drives the transmission shaft to rotate, the first rotating arm, the first connecting rod and the second rotating arm are sequentially driven to rotate, the second rotating arm drives the driving shaft to rotate, the driving shaft drives the rotating shaft to rotate, the rotating shaft drives the inner swinging arm to rotate and separate from the second idler wheel, and the limit of the locking fork is relieved. Meanwhile, the transmission shaft drives the transmission fork to enable the transmission frame to rotate upwards to release the dead point locking state, and the transmission fork synchronously rotating on the transmission shaft only causes the rotation of the screw nut and the transmission frame and does not bring movement to the transmission plate, so that the movement of the door leaf is not influenced. After the manual unlocking is finished, the door leaf can be opened outwards manually, and the unlocking handle is reset under the action of the torsion spring.

Second embodiment:

as shown in fig. 14-15, a multipoint locking mechanism of a door system according to a second embodiment, the driving mechanism 1 includes a driving motor 101, the driving motor 101 is connected with one end of a screw rod 102, a screw rod nut 103 is sleeved on the screw rod 102, one end of the screw rod nut 103 is connected with a first shaft pin 105, the front end of a transmission frame 104 is rotationally clamped on the screw rod nut 103, the rear end of the transmission frame 104 is hinged with one end of a transmission plate 106, the other end of the transmission plate 106 is connected with a door carrying frame 107, and the door carrying frame 107 is connected with a door leaf 6. The other end of the screw nut 103 is provided with a roller 108, the roller 108 is movably connected with a guide rail 109, the guide rail 109 comprises a straight line section 1091 and a groove section 1093, the straight line section 1091 and the groove section 1093 are sequentially connected, and when the roller 108 moves to the groove section 1093, one end of the roller 108 of the screw nut 103 rotates downwards until the roller 108 is clamped at the tail end of the groove section 1093; when the roller 108 starts to move from the end of the groove section 1093, one end of the roller 108 of the screw nut 103 rotates upward until the screw nut 103 stops rotating after the top end of the groove section 1093, and the screw nut 103 moves horizontally through the straight line section 1091.

16-17, The transmission mechanism 2 comprises a transmission shaft 201, a transmission fork 202 is fixed on the transmission shaft 201, the first pin shaft 105 is in contact with the transmission fork 202 before the lead screw nut 103 enters the groove section 1093, and when the first pin shaft 105 moves from the top end to the tail end of the groove section 1093 along with the lead screw nut 103, the transmission fork 202 rotates upwards along with the first pin shaft 105; when the first shaft pin 105 moves from the end to the top of the groove section 1093 along with the lead screw nut 103, the transmission fork 202 rotates downward along with the first shaft pin 105, the lead screw nut 103 exits the groove section 1093, and after entering the straight section 1091, the first shaft pin 105 is out of contact with the transmission fork 202. . The transmission shaft 201 is connected with the middle part of the first rotating arm 203, and one end of the first rotating arm 203 is connected with the first connecting rod 204 through a universal joint; a limiting column 207 is arranged on the mounting plate at one end of the transmission shaft 201, and the first rotating arm 203 contacts with the limiting column 207 when rotating to one side.

As shown in fig. 18, the side locking assembly 3 includes a driving shaft 307, one end of the driving shaft 307 is connected to the first link 204 through a universal joint, a latch 308 is disposed on the driving shaft 307, and the first rotating arm 203 drives the latch 308 on the driving shaft 307 to move up and down in a vertical direction through the first link 204.

The unlocking mechanism 4 comprises an unlocking handle 401, the driving shaft 307 is provided with the unlocking handle 401, and the unlocking handle 401 drives the upper latch 308 of the driving shaft 307 to move up and down in the vertical direction.

The drive fork position holding mechanism 5 includes: the mounting panel 501, the last removal of mounting panel 501 is connected with spacing connecting rod 502, has cup jointed elastomeric element 503 on the spacing connecting rod 502 like: a pressure spring; the limit connecting rod 502 is rotatably connected with the other end of the first rotating arm 203. When the transmission fork 202 rotates upwards, the transmission shaft 201 drives the first rotating arm 203 to rotate, the first rotating arm 203 drives the limiting connecting rod 502 to rotate, the first rotating arm 203 limits the transmission fork 202 due to the limiting of the limiting column 207 and the constraint of the roller on the screw nut 103 on the groove section 1093, so that the first rotating arm 203 cannot continue to rotate in the same direction, meanwhile, the elastic component 503 keeps the acting force of the first rotating arm 203 to rotate in the same direction through the limiting connecting rod 502, the static state of the transmission fork 202 is ensured, and meanwhile, the downward immobility of the plug 308 on the driving shaft 307 is also ensured. When the transmission fork 202 rotates downwards, the transmission shaft 201 drives the first rotating arm 203 to rotate, the first rotating arm 203 drives the limiting connecting rod 502 to rotate, the first rotating arm 203 cannot continue to rotate in the same direction due to the limiting post 207, meanwhile, the elastic part 503 keeps the acting force of the first rotating arm 203 to continue to rotate in the same direction through the limiting connecting rod 502, the static and the non-moving of the transmission fork 202 are ensured, and meanwhile, the upward and non-moving of the plug 308 on the driving shaft 307 are also ensured.

Example 4:

when the door leaf is closed, the motor drives the screw rod nut on the screw rod to move towards the tail end of the guide rail, the roller moves into the groove section from the straight line section, the screw rod nut drives the transmission frame, the transmission plate, the door carrying frame and the door leaf to move, and the door leaf is closed under the constraint of the sliding door guide rail. As shown in fig. 16, when the roller comes to the top of the groove section, the first shaft pin contacts the drive fork; the gyro wheel begins the downwardly directed rotation under the restriction of recess section, drives the transmission fork and upwards rotates, and the transmission fork drives the transmission shaft and rotates, and the transmission shaft drives first arm of rotation and rotates, until the gyro wheel rotates to recess section lower extreme, and the gyro wheel left and right sides is restrained by recess section, has played the effect to the door leaf along the ascending locking of lead screw direction.

In addition, the first rotating arm drives the first connecting rod to move downwards in the vertical direction, the first connecting rod drives the bolt on the driving shaft to move downwards, and because the door leaf is closed at this time, the lock catch 603 arranged on the side face of the door leaf 6 is matched with the bolt guide plate 602 arranged on the vehicle body in place, and the bolt is inserted into the lock hole in the lock catch through the bolt guide plate, so that the locking effect on the side face of the door leaf is realized. In order to better realize locking strength and precision to the door leaf side, connect in series a plurality of bolts on the first connecting rod, still install the connecting rod deflector on the automobile body for first connecting rod reciprocates more stably, has realized the multiple spot locking effect to the door leaf side. Meanwhile, the other end of the first rotating arm drives the limiting connecting rod to rotate, and the constraint of the idler wheel on the screw nut on the groove section limits the transmission fork, so that the first rotating arm cannot continue to rotate in the same direction, meanwhile, the elastic component keeps the acting force of the first rotating arm to continue to rotate in the same direction through the limiting connecting rod, the transmission fork is ensured to be static, and meanwhile, the bolt on the driving shaft is ensured to be downwards static.

Example 5:

When the door leaf is opened, the motor drives the screw rod nut on the screw rod to move, and because the screw rod nut is constrained by the groove section, as shown in fig. 17, the roller wheel on the screw rod nut rotates upwards to drive the first shaft pin and the transmission fork to rotate downwards, and because the roller wheel arrives at the top from the bottom of the groove section, the first unlocking of the door leaf is realized. Simultaneously, when the transmission fork rotates downwards, the transmission fork drives the transmission shaft to rotate, the transmission shaft drives the first rotating arm to rotate, the first rotating arm drives the first connecting rod to move upwards in the vertical direction, the first connecting rod drives the bolt to move upwards, the lock catch and the bolt guide plate on the side face of the door leaf are separated, and unlocking on the side face of the door leaf is achieved. The screw nut is restrained to move horizontally along the straight line section under the action of the motor, is separated from the transmission fork and drives the door leaf to open under the restraint of the sliding door guide rail.

In addition, the other end of the first rotating arm drives the limiting connecting rod to rotate, the first rotating arm cannot continuously rotate in the same direction due to the limiting column, meanwhile, the elastic component keeps the acting force of the first rotating arm to continuously rotate in the same direction through the limiting connecting rod, the static and the non-moving of the transmission fork are ensured, and meanwhile, the upward non-moving of the bolt on the driving shaft is also ensured.

Example 6:

when the manual unlocking is needed to be carried out on the side door, the unlocking handle is lifted manually, the unlocking handle drives the transmission shaft to move upwards, the first connecting rod drives the bolt to move upwards, the lock catch and the bolt guide plate on the side face of the door leaf are separated, unlocking on the side face of the door leaf is achieved, and the first rotating arm rotates to only bring the screw-nut to rotate and does not bring the screw-nut to move horizontally, so that the movement of the door leaf is not influenced. After the manual unlocking is finished, the door leaf can be opened outwards manually.

The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims

1. A multi-point locking mechanism of a door system comprises a driving mechanism, a transmission mechanism, a guiding mechanism and a side locking assembly; the method is characterized in that: the driving mechanism and the guide mechanism are positioned above the door system, the driving mechanism is movably connected with the guide mechanism, and the driving mechanism is constrained by the guide mechanism to rotate for a certain angle at the end of closing the door leaf and the earlier stage of opening the door leaf, so that the driving mechanism can lock and unlock the door system locally; at least one side of the door system is provided with a side locking assembly; the driving mechanism drives the transmission mechanism to move in the process of rotary locking and unlocking, and controls the side locking assembly to lock and unlock through the transmission mechanism;

The driving mechanism comprises a driving motor, the driving motor drives the screw rod to rotate, a screw rod nut is sleeved on the screw rod, one end of the screw rod nut is rotationally connected with one end of the transmission frame through a first shaft pin, the other end of the transmission frame is hinged with one end of the transmission plate, a roller is arranged on the transmission plate and is movably connected with the guide rail, the guide rail comprises a straight line section, a curve section and a groove section, and the straight line section, the curve section and the groove section are sequentially connected;

the transmission mechanism comprises a transmission shaft, a first rotating arm and a transmission fork, wherein the first rotating arm and the transmission fork are fixed on the transmission shaft and can rotate along with the transmission shaft, one end of the first rotating arm is connected with one end of a first connecting rod, and the other end of the first connecting rod is connected with one end of a second rotating arm; the other end of the second rotating arm is connected with a driving shaft of the side locking assembly;

The transmission mechanism further comprises a limit column, the limit column is arranged on the transmission shaft mounting block, and the transmission fork contacts with the limit column when reset;

The side locking assembly comprises a lock body, a rotatable lock fork is arranged in the lock body, a torsion spring is arranged in the lock fork, the lock fork is initially in a reset state under the action of the torsion spring, and a second roller is arranged at the rear end of the lock fork; the lock body is internally provided with a rotating shaft, the rotating shaft is provided with an inner swing arm, the rotating shaft drives the inner swing arm to rotate, after the inner swing arm rotates in place, the front end of the inner swing arm is contacted with the second roller, and one end of the rotating shaft is connected with one end of the driving shaft through a universal joint.

2. A door system multipoint locking mechanism according to claim 1, wherein: the side locking assemblies are arranged in a plurality, the tail end of the rotating shaft of each side locking assembly is connected with the driving shaft of the next side locking assembly through a universal joint, and the driving shaft of the first side locking assembly is connected with the second rotating arm.

3. A door system multipoint locking mechanism according to claim 1, wherein: the unlocking mechanism comprises an unlocking handle, the unlocking handle is rotationally connected with the transmission mechanism and used for driving the transmission mechanism to move reversely, and an unlocking elastic component is arranged on the transmission mechanism and used for resetting the unlocking handle.

4. A door system multipoint locking mechanism according to claim 1, wherein: further included is a drive fork position retention mechanism comprising: the mounting plate is movably connected with a limit connecting rod, and an elastic part is sleeved on the limit connecting rod; the transmission shaft is provided with a rotating block, the free end of the rotating block is rotationally connected with one end of the limiting connecting rod, and the elastic component is used for keeping acting force of the rotating block in the rotating direction.

5. A multi-point locking mechanism of a door system comprises a driving mechanism, a transmission mechanism, a guiding mechanism and a side locking assembly; the method is characterized in that: the driving mechanism and the guide mechanism are positioned above the door system, the driving mechanism is movably connected with the guide mechanism, and the driving mechanism is constrained by the guide mechanism to rotate for a certain angle at the end of closing the door leaf and the earlier stage of opening the door leaf, so that the driving mechanism can lock and unlock the door system locally; at least one side of the door system is provided with a side locking assembly; the driving mechanism drives the transmission mechanism to move in the process of rotary locking and unlocking, and controls the side locking assembly to lock and unlock through the transmission mechanism;

The driving mechanism comprises a driving motor, the driving motor drives the screw rod to rotate, a screw rod nut is sleeved on the screw rod, one end of the screw rod nut is connected with a first shaft pin, the other end of the screw rod nut is provided with a roller, the roller is movably connected with the guide rail, the guide rail comprises a straight line section and a groove section, and the straight line section and the groove section are sequentially connected; the first shaft pin drives the transmission mechanism to generate displacement;

The transmission mechanism comprises a transmission shaft, a transmission fork is fixed on the transmission shaft and matched with the first shaft pin, the transmission shaft is connected with the middle part of the first rotating arm, and one end of the first rotating arm is connected with the first connecting rod through a universal joint;

a limiting column is arranged on a shaft mounting plate at one end of the transmission shaft, and the first rotating arm is in contact with the limiting column in an unlocking state;

The side locking assembly comprises a driving shaft, one end of the driving shaft is connected with the first connecting rod through a universal joint, and a bolt is arranged on the driving shaft.

6. A door system multipoint locking mechanism according to claim 5, wherein: a plurality of bolts are arranged on the driving shaft.

7. A door system multipoint locking mechanism according to claim 5, wherein: the unlocking mechanism comprises an unlocking handle, the driving shaft is provided with the unlocking handle, and the unlocking handle drives the latch on the driving shaft to move up and down in the vertical direction.

8. A door system multipoint locking mechanism according to claim 5, wherein: further included is a drive fork position retention mechanism comprising: the mounting plate is movably connected with a limit connecting rod, an elastic component is sleeved on the limit connecting rod, and the limit connecting rod is rotationally connected with the other end of the first rotating arm.