A vehicle door inner opening transfer system with child lock and its operation method

Abstract

The present invention discloses a vehicle door inner opening transfer system with a child lock and an operating method thereof, comprising a coaxial swing arm transfer mechanism, a vehicle door inner opening mechanism, a vehicle door outer opening mechanism, a sensing control mechanism, and a child lock device. The coaxial swing arm transfer mechanism comprises a lock-holding opening arm, an inner opening opening arm, an inner opening conversion arm, and an inner opening arm. The vehicle door inner opening mechanism comprises an inner door handle and an inner opening connecting arm. The vehicle door outer opening mechanism comprises an outer opening arm, which is transmission-connected to the lock-holding opening arm. The child lock device comprises a child lock rocker arm and a child lock clutch. The child lock clutch slides in a child lock track groove of the inner opening conversion arm. The child lock rocker arm is provided with a child lock guide groove. One end of the child lock clutch engages with the child lock guide groove. The child lock rocker arm can drive the child lock clutch to slide on the inner opening conversion arm, switching the child lock clutch between a contact state and an avoidance state relative to the inner opening opening arm. The system has the advantages of multifunctionality, improved linkage between components, and a more compact assembly structure.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to a vehicle door inward opening transfer system with a child lock and an operating method thereof. Background Art

[0002] With the development of new energy vehicles and the increasing application of electric and intelligent technologies in automobiles, traditional automotive technology is constantly being innovated to meet higher customer demands, such as safety, reliability, comfort, and convenience. This has led to the emergence of multi-purpose vehicles. Multi-purpose vehicles have a larger interior space, meeting family needs. These vehicles often use sliding doors as their doors. Sliding door locks are a key safety feature of sliding doors. They must ensure that the doors are securely locked during normal use to prevent accidental opening, while also ensuring smooth opening when needed, ensuring passage in both normal and emergency situations to prevent loss of life and property damage. In other words, they must provide features such as easy parking, convenient entry and exit, and the ability to realize power functions. For sliding door locks, the transmission mechanism is a crucial functional element, realizing a series of transmission functions such as locking, unlocking, opening from inside and outside, and hovering at any open position. Currently, no sliding door lock on the market can meet all of these functional requirements.

[0003] The existing Chinese patent with announcement number CN103470098B discloses a split-type middle door transmission mechanism, including a base plate, an inner handle shaft is installed on the base plate, and a left inner opening rocker arm is pressed on the inner side of the base plate through a baffle integrally connected to the lower part of the inner handle shaft. The inner handle shaft passes through the outer part of the base plate and is provided with an inner opening torsion spring and a left inner opening linkage arm in sequence on the shaft; on the upper right side of the base plate corresponding to the inner handle shaft, the left rear lock opening arm, the opening linkage plate, and the left outer opening push plate are hingedly connected through a rear lock opening arm rivet shaft, wherein the left outer The opening push plate is arranged on the outer side of the bottom plate, the opening linkage plate and the left rear lock opening arm are arranged on the inner side of the bottom plate, one end of the inner opening transmission plate is hinged to the lower end of the opening linkage plate, and the other end is arranged in the arc-shaped connecting groove at the lower part of the left inner opening rocker arm through the inner opening transmission plate rivet shaft; a conical gasket is provided on the bottom plate corresponding to the right rotation of the rear lock opening arm rivet shaft, and the outer end of the left inner opening push plate connected to the conical gasket is connected to the left locking rocker arm, and the gear lever of the left locking rocker arm is arranged in the guide slide groove on the upper part of the left rear lock opening arm, and the upper part of the conical gasket The connecting rod is arranged in the toggle groove of the left inner locking toggle plate, and the left inner locking toggle plate is rotated to the right upper end portion of the bottom plate through the rivet shaft of the inner locking toggle plate; the lower outer side of the bottom plate is rotatably provided with a left outward opening rocker arm, the lower end of the outward opening transmission plate is arranged in the arc guide groove on the surface of the left outward opening rocker arm, and the upper end is hinged on the lower connecting arm of the left outward opening push plate, and the upper connecting arm of the left outward opening push plate abuts on the gear lever of the left locking rocker arm; when the upper end of one side of the arc guide groove of the left outward opening rocker arm moves upward to the limit, it abuts against the lower lock opening arm for linkage. The lower lock opening arm rivet shaft is riveted to the lower part of the left lower lock opening arm, and the upper bent part of the left lower lock opening arm abuts against the lower pushing end of the left inner opening linkage arm. The left lower lock opening arm is rotated by the lower lock opening arm rivet shaft and is arranged on the bottom plate corresponding to the upper part of the left outer opening rocker arm. The lower lock opening arm rivet shaft is also provided with a left lower lock opening arm return spring, and the two ends of the left lower lock opening arm return spring are respectively pressed on the lower lock opening arm linkage shaft and the protrusion on the bottom plate that cooperates with the lower lock opening arm return spring.

[0004] However, the above-mentioned middle door transmission mechanism has the following disadvantages: the structures of the various parts of the electric door lock implemented in the above-mentioned patent are relatively independent, and the linkage between them is poor. Therefore, the total number of parts is large, the overall structure is very complicated and cumbersome, the installation is inconvenient, and the space occupied by the parts assembly is large. The failure rate during use is high, so there is an urgent need to further optimize the existing products. Summary of the Invention

[0005] The purpose of the present invention is to provide a vehicle door inward opening transfer system with a child lock and an operating method thereof, which has multifunctionality, improves the linkage between parts and components, and has a more compact assembly structure.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A vehicle door inner opening transfer system with a child lock includes a mounting seat plate, the mounting seat plate is provided with:

[0007] A coaxial swing arm transfer mechanism includes a lock-holding opening arm, an inner opening opening arm, an inner opening conversion arm, and an inner opening arm coaxially and rotatably arranged on the mounting base plate, wherein the inner opening arm is connected to the front lock opening cable and the rear lock opening cable, and the lock-holding opening arm is connected to the lock-holding opening cable;

[0008] The vehicle door inner opening mechanism comprises an inner door handle and an inner opening connecting arm, wherein the first end of the inner opening connecting arm is transmission-connected to the inner door handle, and the second end of the inner opening connecting arm is transmission-connected to the lock holding opening arm and the inner opening opening arm respectively;

[0009] The vehicle door outward opening mechanism includes an external opening arm rotatably mounted on a mounting base plate, one end of the external opening arm being transmission-connected to the lock-holding opening arm via a connecting rod assembly, the other end of the external opening arm being transmission-connected to the internal opening arm, and the external opening arm being connected to an external opening cable and / or an electric opening cable;

[0010] The induction control mechanism includes a central control drive unit, a first micro switch and a second micro switch electrically connected to the central control drive unit, wherein the inner door handle is pressed and engaged with the corresponding first micro switch and second micro switch when the inner door handle is rotated, and the central control drive unit is linked to the coaxial swing arm transfer mechanism to control the lock holding opening arm and the inner opening arm to rotate in the unlocking direction;

[0011] The child lock device includes a child lock rocker arm and a child lock clutch. The inner opening conversion arm is provided with a child lock track groove. The child lock clutch is slidably arranged in the child lock track groove. The child lock rocker arm is provided with a child lock guide groove. One end of the child lock clutch is guided and matched with the child lock guide groove. The child lock rocker arm can drive the child lock clutch to slide on the inner opening conversion arm, so that the child lock clutch switches between a contact state and an avoidance state relative to the inner opening opening arm.

[0012] By adopting the above technical solution, when the vehicle door is in the fully open state, the holding lock can be used to lock the vehicle door to prevent the vehicle door from accidentally sliding due to gravity when the vehicle body is on a slope. In addition, the driver and passengers can pull the inner door handle in the second direction at a small angle so that the inner door handle presses and contacts the first microswitch. The first microswitch feeds back a signal to the central control drive unit and electrically pulls the electric opening cable, so that the electric opening cable pulls the outer opening arm to rotate in the unlocking direction, and then the outer opening arm is used to drive the inner opening arm and the holding lock opening arm to rotate, and the front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock and holding lock to achieve electric unlocking, and then the driver and passengers can then The driver and passengers can open the door from inside the vehicle, which is an electric door opening process inside the vehicle; keep the child lock in the unlocked state, and pull the inner door handle in the second direction at a large angle so that the inner door handle pulls the inner opening arm to rotate through the inner opening connecting arm, and the inner opening opening arm pushes the inner opening conversion arm to rotate through the child lock clutch, and the inner opening conversion arm then drives the inner opening arm to rotate in the unlocking direction, and pulls the front lock and rear lock through the front lock opening cable and the rear lock opening cable to achieve mechanical unlocking, and then the driver and passengers can open the door from inside the vehicle, which is a mechanical door opening process inside the vehicle; the driver and passengers pull the inner door handle in the first direction at a small angle so that the inner door handle presses and contacts the second micro switch, and the second micro switch The feedback signal from the closing device is given to the central control drive unit, and the electric opening cable is pulled electrically, so that the electric opening cable pulls the external opening arm to rotate in the unlocking direction, and then the external opening arm is used to drive the internal opening arm and the holding lock opening arm to rotate, and the front lock opening cable, the rear lock opening cable, and the holding lock opening cable are used to pull the front lock, the rear lock and the holding lock to realize electric unlocking, and then the driver and passengers can close the door from inside the vehicle. This process is the electric door closing process inside the vehicle; the driver and passengers pull the inner door handle in a first direction at a large angle, so that the inner door handle pushes the holding lock opening arm to rotate in the unlocking direction through the inner opening connecting arm, and unlocks the holding lock through the holding lock cable, and then the driver and passengers can close the door from inside the vehicle. The operation is a mechanical door closing process inside the vehicle; the driver and passenger pulls the outer opening cable through the outer door handle to control the outer opening arm to rotate in the unlocking direction, and then uses the outer opening arm to drive the inner opening arm and the holding lock opening arm to rotate, and pulls the front lock, rear lock and holding lock through the front lock opening cable, rear lock opening cable and holding lock opening cable to realize mechanical unlocking, and then the driver and passenger can open the door from outside the vehicle; the driver and passenger rotates the child lock rocker arm in the direction of child lock opening, and under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch is driven to move in the child lock track groove to a state of avoidance with the inner opening arm, at this time, the linkage between the inner opening arm and the inner opening conversion arm is cut off, realizing the child lock function;When the driver or passenger rotates the child lock rocker arm in the direction of closing the child lock, the child lock clutch and the child lock guide groove guide the child lock clutch to move in the child lock track groove until it contacts the inner opening arm. At this time, the inner opening arm and the inner opening conversion arm can contact each other to achieve linkage, realizing the child lock closing function. By using the same inner opening connecting arm for the inner door opening and inner door closing functions, the present invention makes the overall structure more compact and the linkage between components is improved. This allows the driver or passenger to open and close the door electrically and mechanically from inside the vehicle. At the same time, the door has a child lock function, making the present invention multifunctional, improving the linkage between components, and making the assembly structure more compact.

[0013] The present invention is further configured as follows: the connecting rod assembly includes a linkage rod rotatably connected to the mounting seat plate, one end of the linkage rod is rotatably connected to the external opening arm through a first linkage rod, and the other end of the linkage rod is rotatably connected to the retaining lock opening arm through a second linkage rod.

[0014] By adopting the above technical solution, when the external opening arm rotates in the unlocking direction, the linkage rod is pulled to rotate through the first link, and the linkage rod then pulls the holding lock opening arm to rotate through the second link. When the holding lock opening arm rotates, the holding lock opening cable is pulled to control the holding lock to unlock. At the same time, the holding lock opening arm drives the internal opening arm to rotate in the unlocking direction under the linkage action of the coaxial swing arm transfer mechanism, thereby realizing the opening of the front and rear locks of the car door.

[0015] The present invention is further configured as follows: the mounting seat plate is provided with a locking mechanism, the locking mechanism includes a lock, a locking rocker arm and a linkage rocker arm, one end of the locking rocker arm is transmission connected to the lock, and the other end of the locking rocker arm is transmission connected to the linkage rocker arm, the internal opening arm is provided with a locking track groove, and a locking and unlocking clutch is slidingly provided in the locking track groove, and the locking mechanism can drive the locking and unlocking clutch to slide in the locking track groove, so that the locking and unlocking clutch can switch between a contact state and an avoidance state relative to the external opening arm.

[0016] By adopting the above technical solution, the locking device can control the locking rocker arm to act on the linkage rocker arm to rotate. By utilizing the guiding effect of the locking track groove and the locking and unlocking clutch, the rotation of the linkage rocker arm drives the locking and unlocking clutch to slide in the locking track groove, thereby realizing the clutch switching between the external opening arm and the internal opening arm.

[0017] The present invention is further configured as follows: the inner opening conversion arm is provided with a connected linkage groove and an idle travel groove corresponding to the locking trajectory groove; when the end of the locking and unlocking clutch is located in the linkage groove, the inner opening conversion arm is in contact and linkage with the inner opening arm through the locking and unlocking clutch; when the end of the locking and unlocking clutch is located in the idle travel groove, the inner opening conversion arm is in avoidance cooperation with the locking and unlocking clutch through the idle travel groove.

[0018] By adopting the above technical solution, the addition of the idle travel groove can make it possible for the driver and passenger to pull the inner door handle from inside the vehicle body. When the lock and unlock clutch are disengaged, the inner opening conversion arm cannot operate the inner opening arm by driving the lock and unlock clutch, thereby failing to unlock the front lock and rear lock.

[0019] The present invention is further configured as follows: a power-off emergency locking mechanism is provided on the mounting seat plate, and the power-off emergency locking mechanism includes a push rod and an elastic member. The push rod is slidably arranged on the mounting seat plate, and the linkage rocker arm is provided with a clutch guide groove. One end of the locking and unlocking clutch is guided and matched with the clutch guide groove. The push rod can push the linkage rocker arm to drive the locking and unlocking clutch to slide in the locking track groove, and the elastic member always has a tendency to drive the push rod away from the linkage rocker arm.

[0020] By adopting the above technical solution, the push rod is pressed, and the push rod pushes the linked rocker arm to rotate. When the linked rocker arm rotates, the guiding effect of the clutch guide groove and the lock and unlock clutch is utilized to drive the lock and unlock clutch to move in the locking track groove until it switches to an avoidance state with the external opening arm. When the pressing force on the push rod disappears, the elastic reset force of the elastic part can be used to push the push rod to return to its initial state.

[0021] The present invention is further configured as follows: the lock-keeping opening arm is provided with an avoidance groove, and a first boss and a second boss are coaxially provided on both sides of the end of the inner opening connecting arm, the first boss is rotatably connected to the inner opening arm, and the second boss is passed through the avoidance groove. When the inner door handle is rotated in the first direction, the lock-keeping opening arm cooperates with the second boss stop, and the inner opening connecting arm pushes the lock-keeping opening arm to rotate in the unlocking direction through the second boss; when the inner door handle is rotated in the second direction, the lock-keeping opening arm cooperates with the second boss through the avoidance groove, and the inner door handle drives the inner opening connecting arm to link the coaxial swing arm transfer mechanism to act on the inner opening arm to rotate in the unlocking direction.

[0022] The present invention is further configured as follows: the child lock device also includes an actuator, the actuator includes a drive motor, a worm and a fan-shaped worm gear, the drive motor drives the worm to rotate, the worm is engaged with the fan-shaped worm gear, and the child lock rocker arm is transmission-connected to the fan-shaped worm gear.

[0023] By adopting the above technical solution, the driver and passengers can use the actuator to electrically open or close the child lock function.

[0024] The present invention is further configured as follows: an outward-opening microswitch and a child-lock microswitch electrically connected to the central control drive unit are provided on the mounting seat plate, the outward-opening microswitch is used to detect the position of the external opening arm, and the child-lock microswitch is used to detect the position of the child-lock rocker arm.

[0025] By adopting the above technical solution and setting an outward opening micro switch and a child lock micro switch, the opening and closing status of the child lock device and the door can be displayed in real time on the central control display.

[0026] The present invention is further configured as follows: a positioning structure is provided between the child lock rocker arm and the mounting seat plate, the positioning structure includes a locking protrusion and an elastic matching portion, the elastic matching portion is integrally arranged on the side of the child lock rocker arm, the locking protrusion is bent and arranged on the mounting seat plate, and the elastic matching portion is provided with a plurality of locking matching grooves on the side facing the locking protrusion, and the locking protrusion is locked and matched with the corresponding locking matching grooves.

[0027] By adopting the above technical solution, the positioning structure can be used to make the mechanical child lock function more stable, thereby preventing the child lock from being accidentally opened or closed due to vehicle bumps.

[0028] Another technical object of the present invention is to provide an operating method for a vehicle door inner opening transfer system with a child lock, comprising the following steps:

[0029] Electric door opening inside the vehicle: By pulling the inner door handle in the second direction at a small angle, the inner door handle is pressed and contacted with the first microswitch. The first microswitch feeds back a signal to the central control drive unit and electrically pulls the electric opening cable, causing the electric opening cable to pull the outer opening arm to rotate in the unlocking direction. The outer opening arm then drives the inner opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable pull the front lock, rear lock, and holding lock to achieve electric unlocking. The driver and passengers can then open the door from inside the vehicle.

[0030] Mechanical door opening from inside the vehicle: Keep the child lock in the unlocked state, and pull the inner door handle in the second direction at a large angle. The inner door handle pulls the inner opening arm through the inner opening connecting arm to rotate. The inner opening arm pushes the inner opening conversion arm to rotate through the child lock clutch. The inner opening conversion arm then drives the inner opening arm to rotate in the unlocking direction, and the front lock and rear lock are pulled by the front lock opening cable and the rear lock opening cable to achieve mechanical unlocking. The driver and passengers can then open the door from inside the vehicle.

[0031] Electric door closing inside the vehicle: By pulling the inner door handle in a small angle in the first direction, the inner door handle is pressed and contacted with the second microswitch, and the second microswitch feeds back a signal to the central control drive unit, and electrically pulls the electric opening cable, so that the electric opening cable pulls the outer opening arm to rotate in the unlocking direction, and then the outer opening arm is used to drive the inner opening arm and the holding lock opening arm to rotate, and the front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock and holding lock to achieve electric unlocking. Then, the driver and passengers can close the door from the inside of the vehicle, moving the door from the open state to the closed state;

[0032] Mechanical door closing from inside the vehicle: By pulling the inner door handle in a first direction at a large angle, the inner door handle pushes the holding lock opening arm to rotate in the unlocking direction through the inner opening connecting arm, and the holding lock is unlocked by the holding lock cable. The driver and the passenger can then close the door from inside the vehicle, moving the door from the open state to the closed state.

[0033] Electric door opening from outside the vehicle: By gently pulling the outside door handle, the outside opening cable is pulled to control the outside opening arm to rotate in the unlocking direction. The first micro switch feeds back a signal to the central control drive unit, and the electric opening cable is pulled electrically, so that the electric opening cable pulls the outside opening arm to rotate in the unlocking direction. The outside opening arm then drives the inside opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable pull the front lock, rear lock, and holding lock to achieve electric unlocking. The driver and passengers can then open the door from outside the vehicle.

[0034] Mechanical door opening from outside the vehicle: Pull the outer opening cable through the outer door handle to control the outer opening arm to rotate in the unlocking direction, and then use the outer opening arm to drive the inner opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock, and holding lock respectively to achieve mechanical unlocking, and the driver and passengers can open the door from outside the vehicle;

[0035] Child lock unlocking: Rotate the child lock rocker arm in the direction of child lock unlocking. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch moves in the child lock track groove until it is in a state of avoiding the inner opening arm. At this time, the linkage between the inner opening arm and the inner opening conversion arm is cut off, realizing the child lock function.

[0036] Child lock closing: Rotate the child lock rocker arm in the direction of child lock closing. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch is driven to move in the child lock track groove until it is in contact with the inner opening arm. At this time, the inner opening arm and the inner opening conversion arm can contact each other to achieve linkage, thereby realizing the child lock closing function.

[0037] In summary, the present invention has the following beneficial effects:

[0038] A coaxial swing arm transfer mechanism, an inner door opening mechanism, an outer door opening mechanism, an induction control mechanism and a child lock device are arranged on the mounting seat plate of the vehicle door, wherein the coaxial swing arm transfer mechanism includes a lock-keeping opening arm, an inner opening opening arm, an inner opening conversion arm and an inner opening arm which are coaxially and rotatably arranged on the mounting seat plate, the inner door opening mechanism includes an inner door handle and an inner opening connecting arm, the first end of the inner opening connecting arm is transmission-connected to the inner door handle, and the second end of the inner opening connecting arm is transmission-connected to the lock-keeping opening arm and the inner opening arm respectively, the outer door opening mechanism includes an outer opening arm which is rotationally arranged on the mounting seat plate, one end of the outer opening arm is transmission-connected to the lock-keeping opening arm through a connecting rod assembly, the other end of the outer opening arm is transmission-connected to the inner opening arm, and the outer opening arm is connected to the outer opening cable and the electric opener The pull rope and the child lock device include a child lock rocker arm and a child lock clutch. The inner opening conversion arm is provided with a child lock track groove. The child lock clutch is slidably arranged in the child lock track groove. The child lock rocker arm is provided with a child lock guide groove. One end of the child lock clutch is guided and matched with the child lock guide groove. The child lock rocker arm can drive the child lock clutch to slide on the inner opening conversion arm, so that the child lock clutch can switch between a contact state and an avoidance state relative to the inner opening opening arm. The present invention makes the overall structure more compact and the linkage between components higher by using a common inner opening connecting arm for the inner opening function of the door and the inner closing function of the door, thereby enabling the driver and passengers to realize the electric and mechanical opening and closing of the door from inside the car. At the same time, the door has a child lock function, which makes the present invention multifunctional, improves the linkage between components, and makes the assembly structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is an overall structural diagram of the first specific embodiment of the present invention.

[0040] Figure 2 This invention Figure 1 A partial enlarged view of area A in the middle.

[0041] Figure 3 It is a view from another perspective of a specific embodiment of the present invention.

[0042] Figure 4 1 is a view of a first embodiment of the present invention, wherein the mounting plate is not shown.

[0043] Figure 5 It is an exploded view of the first specific embodiment of the present invention.

[0044] Figure 6 It is a structural diagram of the inward-opening connecting arm of the first specific embodiment of the present invention.

[0045] Figure 7 It is a structural diagram of the inward-opening conversion arm of the first specific embodiment of the present invention.

[0046] Figure 8 It is a structural diagram of the inward-opening conversion arm of the second specific embodiment of the present invention.

[0047] Figure 9 It is an overall structural diagram of the third specific embodiment of the present invention.

[0048] Figure 10 This is a component connection diagram of the second specific embodiment of the present invention.

[0049] Figure 11 It is a partial structural diagram of the fourth specific embodiment of the present invention.

[0050] In the figure: 1. Mounting plate; 11. External opening micro switch; 12. Child lock micro switch; 13. Locking protrusion; 14. Locking torsion spring; 15. Sliding member; 151. Sliding portion; 152. Light rod portion; 21. Lock-keeping open arm; 21a. Avoidance groove; 210. Lock-keeping open cable; 22. Internal opening connecting arm; 220. Rotating connecting portion; 221. First protrusion; 222. Second protrusion; 23. Internal opening arm; 23a. Locking track groove; 2301. Front lock opening cable; 2302. Rear lock opening cable; 231. Locking and unlocking clutch; 232. Emergency cable; 24. Internal opening conversion arm; 24a. Child lock track groove; 24b. Linkage groove; 24c. Idle travel groove; 25. External opening Arm; 251, external opening cable; 252, electric opening cable; 26, internal opening arm; 31, inner door handle; 31a, mounting slot; 4, connecting rod assembly; 41, linkage rod; 42, first connecting rod; 43, second connecting rod; 51, first micro switch; 52, second micro switch; 61, child lock rocker arm; 61a, child lock guide groove; 611, elastic fitting part; 611a, locking fitting groove; 62, child lock clutch; 63, actuator; 631, drive motor; 632, worm; 633, fan-shaped worm gear; 71, locker; 72, locking rocker arm; 73, linkage rocker arm; 73a, clutch guide groove; 73b, locking guide groove; 731, linkage arm reset torsion spring; 81, push rod; 82, elastic part. DETAILED DESCRIPTION

[0051] The present invention will be further described below with reference to the accompanying drawings. Specific embodiment 1

[0053] A car door inner opening transfer system with child lock, such as Figure 1-5As shown, this embodiment is a mechanical child lock, including a mounting base 1, on which a coaxial swing arm transfer mechanism, an inner door opening mechanism, an outer door opening mechanism, a sensing control mechanism and a child lock device are provided. A control system is provided inside the vehicle machine. The coaxial swing arm transfer mechanism includes a lock-maintaining opening arm 21, an inner opening opening arm 26, an inner opening conversion arm 24 and an inner opening arm 23 coaxially and rotatably provided on the mounting base 1. The inner opening arm 23 is connected to a front lock opening cable 2301 and a rear lock opening cable 2302. The lock-maintaining opening arm 21 is connected to a lock-maintaining opening cable 210. The inner door opening mechanism The door opening mechanism includes an inner door handle 31 and an inner opening connecting arm 22, wherein the first end of the inner opening connecting arm 22 is connected to the inner door handle 31 by transmission, and the second end of the inner opening connecting arm 22 is connected to the lock holding opening arm 21 and the inner opening opening arm 26 by transmission, and the inner opening connecting arm 22 is provided with a rotating connecting portion 220, and the inner door handle 31 is provided with a mounting groove 31a corresponding to the rotating connecting arm, and one end of the inner opening connecting arm 22 is rotatably connected to the mounting groove 31a of the inner door handle 31 through the rotating connecting portion 220; the vehicle door outer opening mechanism includes an outer opening arm 25 rotatably provided on the mounting seat plate 1, and one end of the outer opening arm 25 is connected to the inner door handle 31 by rotation. The outer opening arm 25 is connected to the lock holding arm 21 through the connecting rod assembly 4, and the other end of the outer opening arm 25 is connected to the inner opening arm 23, and the outer opening arm 25 is connected to the outer opening cable 251 and the electric opening cable 252; the induction control mechanism includes a central control drive unit, a first micro switch 51 and a second micro switch 52 electrically connected to the central control drive unit, and when the inner door handle 31 is rotated, it is pressed and matched with the corresponding first micro switch 51 and the second micro switch 52, and the central control drive unit is linked to the coaxial swing arm transfer mechanism to control the lock holding arm 21 and the inner opening arm 23 to unlock. The child lock device includes a child lock rocker arm 61 and a child lock clutch 62. The inner opening conversion arm 24 is provided with a child lock track groove 24a. The child lock clutch 62 is slidably arranged in the child lock track groove 24a. The child lock rocker arm 61 is provided with a child lock guide groove 61a. One end of the child lock clutch 62 is guided and matched with the child lock guide groove 61a. The child lock rocker arm 61 can drive the child lock clutch 62 to slide on the inner opening conversion arm 24, so that the child lock clutch 62 switches between a contact state and an avoidance state relative to the inner opening opening arm 26. A locking torsion spring 14 is provided between the lock holding arm 21 and the inner opening conversion arm 24.The linkage assembly 4 includes a linkage rod 41 rotatably connected to the mounting base plate 1. One end of the linkage rod 41 is rotatably connected to the external opening arm 25 via a first linkage rod 42. The other end of the linkage rod 41 is rotatably connected to the lock-maintaining opening arm 21 via a second linkage rod 43. When the external opening arm 25 rotates toward the unlocking direction, the linkage rod 41 is pulled by the first linkage rod 42 to rotate. The linkage rod 41 then pulls the lock-maintaining opening arm 21 to rotate via the second linkage rod 43. When the lock-maintaining opening arm 21 rotates, the lock-maintaining opening cable 210 is pulled to control the unlocking of the lock. At the same time, the lock-maintaining opening arm 21 drives the internal opening arm 23 to rotate toward the unlocking direction under the linkage action of the coaxial swing arm transfer mechanism, thereby opening the front and rear door locks. In addition, in this embodiment, an emergency cable 232 is connected to the internal opening arm 23. When the vehicle loses power, the emergency cable 232 can be pulled to drive the internal opening arm 23 to emergency unlock the front and rear door locks.

[0054] like Figure 3-5 and Figure 7 When latch key 7 is engaged, the latch is in the form of a key, and the latch is in the form of a check valve 76. When the latch is in the form of a key, the latch is in the form of a check valve 76. When the latch is in the form of a key, the latch is in the form of a check valve 76. When the latch is in the form of a key, the latch is in the form of a check valve 76. When the cam 73 is in the unlocked position, the locking cam 231 is in the unlocked position, and the locking cam 231 is in the unlocked position, so that the cam 73 is in the unlocked position and the locking cam 231 is in the unlocked position.

[0055] like Figure 1-2 and Figure 6As shown, the lock-keeping opening arm 21 is provided with an avoidance groove 21a, and a first boss 221 and a second boss 222 are coaxially provided on both sides of the end of the inner opening connecting arm 22. The first boss 221 is rotatably connected to the inner opening opening arm 26, and the second boss 222 is passed through the avoidance groove 21a. When the inner door handle 31 is rotated in the first direction, the lock-keeping opening arm 21 is stopped and cooperated with the second boss 222, and the inner opening connecting arm 22 pushes the lock-keeping opening arm 21 to rotate in the unlocking direction through the second boss 222; when the inner door handle 31 is rotated in the second direction, the lock-keeping opening arm 21 avoids and cooperates with the second boss 222 through the avoidance groove 21a, and the inner door handle 31 drives the inner opening connecting arm 22 to rotate in the unlocking direction by means of the coaxial swing arm transfer mechanism. In this embodiment, the first direction and the second direction are two opposite directions extending along the avoidance groove 21a, wherein the first direction is attached Figure 1 The direction of movement is to the right, and the second direction is to the Figure 1 The direction of movement to the left in the middle; the mounting seat plate 1 is provided with an outward opening micro switch 11 and a child lock micro switch 12 electrically connected to the central control drive unit, the outward opening micro switch 11 is used to detect the position of the external opening arm 25, and the child lock micro switch 12 is used to detect the position of the child lock rocker arm 61. By setting the outward opening micro switch 11 and the child lock micro switch 12, the opening and closing status of the child lock device and the door can be displayed in real time on the central control display; a positioning structure is provided between the child lock rocker arm 61 and the mounting seat plate 1, and the positioning structure includes a locking The protrusion 13 and the elastic fitting part 611, the elastic fitting part 611 is integrally arranged on the side of the child lock rocker arm 61, the locking protrusion 13 is bent and arranged on the mounting seat plate 1, and the elastic fitting part 611 is provided with a plurality of locking fitting grooves 611a on the side facing the locking protrusion 13, and the locking protrusion 13 is locked with the corresponding locking fitting grooves 611a. For the mechanical child lock function, the above-mentioned positioning structure can be used to make the child lock locking function of the mechanical child lock more stable, and prevent the child lock from being accidentally opened or closed due to vehicle bumps.

[0056] like Figure 1 and Figure 5 As shown, a sliding member 15 is slidably provided on the mounting seat plate 1, and the sliding member 15 includes an integral sliding portion 151 and a light rod portion 152. The linkage rocker arm 73 is provided with a locking guide groove 73b. The light rod portion 152 is passed through the locking guide groove 73b and cooperates with its guide, and drives the linkage rocker arm 73 to drive the locking and unlocking clutch 231 to slide on the internal opening arm 23.

[0057] The basic working principle of this embodiment is: when the door is in the fully open state, the door can be locked by the holding lock to prevent the door from accidentally sliding due to gravity when the vehicle body is on a slope. In addition, the driver and passengers can pull the inner door handle 31 in the second direction at a small angle. In this embodiment, the small angle rotation range of the inner door handle 31 is set to 8-15 degrees, so that the inner door handle 31 is pressed and contacted with the first micro switch 51. The first micro switch 51 feeds back a signal to the central control drive unit and electrically pulls the electric opening cable 252, so that the electric opening cable 252 pulls the external opening arm 25 to rotate in the unlocking direction, and then uses the external opening arm 25 to drive the internal opening arm 23 to rotate, and opens the door through the front lock. The cable 2301 and the rear lock opening cable 2302 pull the front lock and the rear lock to realize electric unlocking, and then the driver and passengers can open the door from inside the car. This process is the electric door opening process inside the car; keep the child lock in the unlocked state, by pulling the inner door handle 31 in the second direction at a large angle. In this embodiment, the large-angle rotation range of the inner door handle 31 is set to 25-35 degrees, so that the inner door handle 31 pulls the inner opening arm 26 to rotate through the inner opening connecting arm 22, and the inner opening opening arm 26 pushes the inner opening conversion arm 24 to rotate through the child lock clutch 62, and the inner opening conversion arm 24 then drives the inner opening arm 23 to rotate in the unlocking direction, and pulls the front lock opening cable 2301 and the rear lock opening cable 2302 The front and rear locks are mechanically unlocked, and then the driver and passengers can open the door from inside the car. This process is the mechanical door opening process inside the car; the driver and passengers pull the inner door handle 31 in the first direction at a small angle, so that the inner door handle 31 is pressed and contacted with the second microswitch 52, and the second microswitch 52 feeds back a signal to the central control drive unit, and electrically pulls the electric opening cable 252, so that the electric opening cable 252 pulls the external opening arm 25 to rotate in the unlocking direction, and then uses the external opening arm 25 to drive the internal opening arm 23 to rotate, and pulls the front lock and rear lock through the front lock opening cable 2301 and the rear lock opening cable 2302 to realize electric unlocking, and then the driver and passengers can close the door from inside the car. This process is the mechanical door opening process inside the car. The process of electric door closing inside the vehicle; the driver and passenger pulls the inner door handle 31 in a large angle in the first direction, so that the inner door handle 31 pushes the lock holding opening arm 21 to rotate in the unlocking direction through the inner opening connecting arm 22, and unlocks the lock through the lock holding cable. Then the driver and passenger can close the door from inside the vehicle. This process is a mechanical door closing process inside the vehicle; the driver and passenger pulls the outer opening cable 251 through the outer door handle to control the outer opening arm 25 to rotate in the unlocking direction, and then uses the outer opening arm 25 to drive the inner opening arm 23 to rotate, and pulls the front lock and rear lock through the front lock opening cable 2301 and the rear lock opening cable 2302 to achieve mechanical unlocking, and then the driver and passenger can open the door from outside the vehicle;The driver and passenger rotates the child lock rocker arm 61 in the direction of opening the child lock, and under the guidance of the child lock clutch 62 and the child lock guide groove 61a, the child lock clutch 62 is driven to move in the child lock track groove 24a to a state of avoiding the inner opening arm 26. At this time, the linkage between the inner opening arm 26 and the inner opening conversion arm 24 is cut off, and the child lock function is realized; the driver and passenger rotates the child lock rocker arm 61 in the direction of closing the child lock, and under the guidance of the child lock clutch 62 and the child lock guide groove 61a, the child lock clutch 62 is driven to move in the child lock track groove 24a to a state of avoiding the inner opening arm 26. When the inner opening arm 26 is in contact with the inner opening switching arm 24, the inner opening opening arm 26 and the inner opening conversion arm 24 can contact each other to realize the child lock closing function. By sharing the inner opening connecting arm 22 for the inner opening function and the inner closing function of the door, the present invention makes the overall structure more compact and the linkage between the components is improved. This allows the driver and passengers to realize the electric and mechanical opening and closing of the door from the inside of the vehicle. At the same time, the door has a child lock function, making the present invention multifunctional, improving the linkage between the components, and making the assembly structure more compact.

[0058] The present invention provides an operating method of a vehicle door inward opening transfer system with a child lock, comprising the following steps:

[0059] Electric door opening inside the vehicle: By pulling the inner door handle in the second direction at a small angle of about 10°, the inner door handle is pressed and contacted with the first microswitch. The first microswitch feeds back a signal to the central control drive unit and electrically pulls the electric opening cable, causing the electric opening cable to pull the outer opening arm to rotate in the unlocking direction. The outer opening arm then drives the inner opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable pull the front lock, rear lock, and holding lock to achieve electric unlocking. The driver and passengers can then open the door from inside the vehicle.

[0060] Mechanical door opening from inside the vehicle: Keep the child lock in the unlocked state, and pull the inner door handle in the second direction at a large angle of about 30 degrees, so that the inner door handle pulls the inner opening arm through the inner opening connecting arm to rotate, and the inner opening arm pushes the inner opening conversion arm to rotate through the child lock clutch. The inner opening conversion arm then drives the inner opening arm to rotate in the unlocking direction, and the front lock and rear lock are pulled by the front lock opening cable and the rear lock opening cable to achieve mechanical unlocking. Then the driver and passengers can open the door from inside the vehicle;

[0061] Electric door closing inside the vehicle: By pulling the inner door handle in the first direction at a small angle of about 10 degrees, the inner door handle is pressed and contacted with the second microswitch, and the second microswitch feeds back a signal to the central control drive unit, and electrically pulls the electric opening cable, so that the electric opening cable pulls the outer opening arm to rotate in the unlocking direction, and then the outer opening arm is used to drive the inner opening arm and the holding lock opening arm to rotate, and the front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock and holding lock to achieve electric unlocking. The driver and passengers can then close the door from inside the vehicle, moving the door from the open state to the closed state;

[0062] Mechanical door closing from inside the vehicle: By pulling the inner door handle in a first direction at a large angle of about 30 degrees, the inner door handle pushes the retaining lock opening arm to rotate in the unlocking direction through the inner opening connecting arm, and the retaining lock is unlocked by the retaining lock cable. The driver and passengers can then close the door from inside the vehicle, moving the door from the open state to the closed state.

[0063] Electric door opening from outside the vehicle: By gently pulling the outside door handle, the outside opening cable is pulled to control the outside opening arm to rotate in the unlocking direction, so that the outside opening arm is pressed and contacted with the outside opening microswitch. The first microswitch feedbacks a signal to the central control drive unit and electrically pulls the electric opening cable, so that the electric opening cable pulls the outside opening arm to rotate in the unlocking direction. The outside opening arm then drives the inside opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable pull the front lock, rear lock, and holding lock to achieve electric unlocking, and the driver and passengers can open the door from outside the vehicle.

[0064] Mechanical door opening from outside the vehicle: Pull the outer opening cable through the outer door handle to control the outer opening arm to rotate in the unlocking direction, and then use the outer opening arm to drive the inner opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock, and holding lock respectively to achieve mechanical unlocking, and the driver and passengers can open the door from outside the vehicle;

[0065] Mechanical child lock opening: Rotate the child lock rocker arm in the direction of child lock opening. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch moves in the child lock track groove until it is in a state of avoiding the inner opening arm. At this time, the linkage between the inner opening arm and the inner opening conversion arm is cut off, realizing the child lock function.

[0066] Mechanical child lock closing: Rotate the child lock rocker arm in the direction of child lock closing. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch is driven to move in the child lock track groove until it is in contact with the inner opening arm. At this time, the inner opening arm and the inner opening conversion arm can contact each other to achieve linkage, thereby realizing the child lock closing function.

[0067] Mechanical one-time opening inside the vehicle: Keep the child lock in the unlocked state, and pull the inner door handle in the second direction at a large angle of about 30 degrees, so that the inner door handle pulls the inner opening arm through the inner opening connecting arm to rotate, and the inner opening arm pushes the inner opening conversion arm to rotate through the child lock clutch. The inner opening conversion arm then drives the inner opening arm to rotate in the unlocking direction, and pulls the front lock and rear lock through the front lock opening cable and the rear lock opening cable to achieve mechanical unlocking. Then, the driver and passengers can open the door from inside the vehicle, realizing mechanical one-time opening of the door inside the vehicle;

[0068] Emergency mechanical unlocking inside the vehicle: This function can be optionally configured according to vehicle requirements. Pulling the emergency cable directly inside the vehicle will mechanically unlock the front and rear locks through the front and rear lock unlocking cables, allowing the driver and passengers to open the door from inside the vehicle.

[0069] Mechanical locking and unlocking inside the vehicle: The operating sliding portion slides in the first direction, driving the linkage rocker arm to rotate, thereby driving the lock-unlock clutch to move, causing the outer opening arm and the inner opening conversion arm to separate from the inner opening arm, thereby achieving the locking function; the sliding portion slides in the first direction, driving the linkage rocker arm to rotate in the opposite direction, thereby driving the lock-unlock clutch to move, causing the outer opening arm and the inner opening conversion arm to engage with the inner opening arm, thereby achieving the unlocking function;

[0070] Central locking and unlocking: The vehicle control system is controlled by operating the lock button of the central control switch or remote control key, driving the locking device to rotate in the first direction, driving the locking rocker arm and the interlocking rocker arm to rotate, thereby driving the lock and unlock clutch to move, causing the external opening arm and the internal opening conversion arm to separate from the internal opening arm, thereby realizing the locking function; by operating the unlock button of the central control switch, remote control key, etc., the control system is rotated in the second direction, driving the locking rocker arm and the interlocking rocker arm to rotate in the opposite direction, thereby driving the lock and unlock clutch to move, causing the external opening arm and the internal opening conversion arm to combine with the internal opening arm, thereby realizing the unlocking function. Specific embodiment 2

[0072] A car door inner opening transfer system with child lock, such as Figure 8As shown, this embodiment is a door that requires a second opening. The inner opening conversion arm 24 is provided with a connected linkage groove 24b and an idle travel groove 24c corresponding to the locking trajectory groove 23a. When the end of the lock and unlock clutch 231 is located in the linkage groove 24b, the inner opening conversion arm 24 contacts and links with the inner opening arm 23 through the lock and unlock clutch 231. When the end of the lock and unlock clutch 231 is located in the idle travel groove 24c, the inner opening conversion arm 24 avoids and cooperates with the lock and unlock clutch 231 through the idle travel groove 24c. The addition of the idle travel groove 24c can make it possible for the driver and passenger to pull the inner door handle 31 from the inside of the vehicle body. When the lock and unlock clutch 231 is separated, the inner opening conversion arm 24 cannot operate the inner opening arm 23 by driving the lock and unlock clutch 231, thereby failing to unlock the front lock and the rear lock.

[0073] The other structures of this embodiment are consistent with those of the first embodiment and will not be described again here. Specific embodiment three

[0075] A car door inner opening transfer system with child lock, such as Figure 9-10 As shown, this embodiment is an electric child lock. The child lock device also includes an actuator 63. The actuator 63 includes a drive motor 631, a worm 632 and a fan-shaped worm gear 633. The drive motor 631 drives the worm 632 to rotate, and the worm 632 engages with the fan-shaped worm gear 633. The child lock rocker arm 61 is connected to the fan-shaped worm gear 633. The driver and passengers can use the actuator 63 to realize the electric opening or closing of the child lock function.

[0076] The other structures of this embodiment are consistent with those of the first embodiment and will not be described again here.

[0077] In addition, the difference between the operation method of this embodiment and the specific embodiment is that the electric child lock opening and electric child lock closing functions are added. The specific operation methods of the electric child lock opening and electric child lock closing are as follows:

[0078] Electric child lock opening: Activate the electric child lock button, and the control system controls the child lock actuator to rotate the child lock rocker arm in the direction of child lock opening. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch moves in the child lock track groove to a state of avoiding the inner opening arm. At this time, the linkage between the inner opening arm and the inner opening conversion arm is cut off, realizing the child lock function;

[0079] Electric child lock closing: Turn off the electric child lock button, and control the child lock actuator through the control system to rotate the child lock rocker arm in the direction of child lock closing. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch is driven to move in the child lock track groove until it is in contact with the inner opening arm. At this time, the inner opening arm and the inner opening conversion arm can contact each other to achieve linkage, thereby realizing the child lock closing function. Specific embodiment 4

[0081] A car door inner opening transfer system with child lock, such as Figure 11 As shown, this embodiment is an emergency lock vehicle model, and a power-off emergency locking mechanism is provided on the mounting base plate 1. The power-off emergency locking mechanism includes a push rod 81 and an elastic member 82. The push rod 81 is slidably provided on the mounting base plate 1, and the linkage rocker arm 73 is provided with a clutch guide groove 73a. One end of the lock and unlock clutch 231 is guided and matched with the clutch guide groove 73a. The push rod 81 can push the linkage rocker arm 73 to drive the lock and unlock clutch 231 to slide in the locking track groove 23a. The elastic member 82 always has a movement tendency to drive the push rod 81 away from the linkage rocker arm 73. When the push rod 81 is pressed, the push rod 81 pushes the linkage rocker arm 73 to rotate. When the linkage rocker arm 73 rotates, the clutch guide groove is used The guiding effect of 73a and the lock-unlock clutch 231 drives the lock-unlock clutch 231 to move in the locking track groove 23a to switch to the avoidance state with the external opening arm 25. When the pressing force on the push rod 81 disappears, the elastic reset force of the elastic member 82 can push the push rod 81 to reset to the initial state. When the power of the entire vehicle is cut off during driving, the driver and passengers can use the pressing push rod 81 to switch the lock-unlock clutch 231 from the "closed" state to the "released" state, thereby disconnecting the linkage between the external opening arm 25 and the internal opening arm 23, preventing the car door from opening accidentally, and achieving the purpose of manual mechanical locking of the vehicle.

[0082] The other structures of this embodiment are consistent with those of the first embodiment and will not be described again here.

[0083] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A vehicle door inner opening transfer system with a child lock, comprising a mounting seat plate (1), characterized in that: The mounting plate (1) is provided with: A coaxial swing arm transfer mechanism comprises a lock-holding opening arm (21), an inner opening opening arm (26), an inner opening conversion arm (24) and an inner opening arm (23) which are coaxially and rotatably arranged on a mounting base plate (1); the inner opening arm (23) is connected to a front lock opening cable (2301) and a rear lock opening cable (2302); and the lock-holding opening arm (21) is connected to a lock-holding opening cable (210); A vehicle door inner opening mechanism comprises an inner door handle (31) and an inner opening connecting arm (22), wherein a first end of the inner opening connecting arm (22) is transmission-connected to the inner door handle (31), and a second end of the inner opening connecting arm (22) is transmission-connected to the lock-holding opening arm (21) and the inner opening opening arm (26) respectively; A vehicle door outward opening mechanism comprises an external opening arm (25) rotatably mounted on a mounting base plate (1), one end of the external opening arm (25) being transmission-connected to the lock-holding opening arm (21) via a connecting rod assembly (4), the other end of the external opening arm (25) being transmission-connected to the internal opening arm (23), and the external opening arm (25) being connected to an external opening cable (251) and / or an electric opening cable (252); The induction control mechanism comprises a central control drive unit, a first micro switch (51) and a second micro switch (52) electrically connected to the central control drive unit, wherein the inner door handle (31) is pressed and matched with the corresponding first micro switch (51) and second micro switch (52) when the inner door handle (31) is rotated, and the central control drive unit is linked to the coaxial swing arm transfer mechanism to control the lock holding opening arm (21) and the inner opening arm (23) to rotate in the unlocking direction; A child lock device comprises a child lock rocker arm (61) and a child lock clutch (62); the inner opening conversion arm (24) is provided with a child lock track groove (24a); the child lock clutch (62) is slidably arranged in the child lock track groove (24a); the child lock rocker arm (61) is provided with a child lock guide groove (61a); one end of the child lock clutch (62) is guided and matched with the child lock guide groove (61a); the child lock rocker arm (61) can drive the child lock clutch (62) to slide on the inner opening conversion arm (24), so that the child lock clutch (62) switches between a contact state and an avoidance state relative to the inner opening opening arm (26); A positioning structure is provided between the child lock rocker arm (61) and the mounting seat plate (1), the positioning structure comprising a locking protrusion (13) and an elastic matching portion (611), the elastic matching portion (611) being integrally provided on the side of the child lock rocker arm (61), the locking protrusion (13) being bent and provided on the mounting seat plate (1), a plurality of locking matching grooves (611a) being provided on the side of the elastic matching portion (611) facing the locking protrusion (13), and the locking protrusion (13) being locked and matched with the corresponding locking matching grooves (611a).

2. The vehicle door inward opening transfer system with a child lock according to claim 1, characterized in that: The connecting rod assembly (4) includes a linkage rod (41) rotatably connected to the mounting base plate (1), one end of the linkage rod (41) is rotatably connected to the external opening arm (25) through a first linkage rod (42), and the other end of the linkage rod (41) is rotatably connected to the lock holding opening arm (21) through a second linkage rod (43).

3. The vehicle door inward opening transfer system with a child lock according to claim 1, characterized in that: The mounting base plate (1) is provided with a locking mechanism, which includes a locker (71), a locking rocker arm (72) and a linkage rocker arm (73). One end of the locking rocker arm (72) is transmission-connected to the locker (71), and the other end of the locking rocker arm (72) is transmission-connected to the linkage rocker arm (73). The internal opening arm (23) is provided with a locking track groove (23a). A locking and unlocking clutch (231) is slidingly provided in the locking track groove (23a). The locking mechanism can drive the locking and unlocking clutch (231) to slide in the locking track groove (23a), so that the locking and unlocking clutch (231) switches between a contact state and an avoidance state relative to the external opening arm (25).

4. The vehicle door inward opening transfer system with a child lock according to claim 3, characterized in that: The inner opening conversion arm (24) is provided with a linked linkage groove (24b) and an idle stroke groove (24c) corresponding to the locking track groove (23a); when the end of the locking and unlocking clutch (231) is located in the linked linkage groove (24b), the inner opening conversion arm (24) contacts and links with the inner opening arm (23) through the locking and unlocking clutch (231); when the end of the locking and unlocking clutch (231) is located in the idle stroke groove (24c), the inner opening conversion arm (24) avoids and cooperates with the locking and unlocking clutch (231) through the idle stroke groove (24c).

5. The vehicle door inward opening transfer system with a child lock according to claim 3, characterized in that: The mounting base plate (1) is provided with a power failure emergency locking mechanism, and the power failure emergency locking mechanism includes a push rod (81) and an elastic member (82). The push rod (81) is slidably arranged on the mounting base plate (1), and the linkage rocker arm (73) is provided with a clutch guide groove (73a). One end of the locking and unlocking clutch member (231) is guided and matched with the clutch guide groove (73a). The push rod (81) can push the linkage rocker arm (73) to drive the locking and unlocking clutch member (231) to slide in the locking track groove (23a), and the elastic member (82) always has a tendency to drive the push rod (81) away from the linkage rocker arm (73).

6. The vehicle door inward opening transfer system with a child lock according to claim 1, characterized in that: The lock-keeping opening arm (21) is provided with an avoidance groove (21a), and a first convex column (221) and a second convex column (222) are coaxially provided on both sides of the end of the inner opening connecting arm (22), the first convex column (221) is rotatably connected to the inner opening opening arm (26), and the second convex column (222) is passed through the avoidance groove (21a), and when the inner door handle (31) is rotated in the first direction, the lock-keeping opening arm (21) and the second convex column (222) are stopped. When the inner door handle (31) is closed, the inner opening connecting arm (22) pushes the lock-maintaining opening arm (21) to rotate in the unlocking direction through the second protrusion (222); when the inner door handle (31) is rotated in the second direction, the lock-maintaining opening arm (21) avoids and cooperates with the second protrusion (222) through the avoidance groove (21a), and the inner door handle (31) drives the inner opening connecting arm (22) to link the coaxial swing arm transfer mechanism to act on the inner opening arm (23) to rotate in the unlocking direction.

7. The vehicle door inward opening transfer system with a child lock according to claim 1, characterized in that: The child lock device further comprises an actuator (63), the actuator (63) comprising a drive motor (631), a worm (632) and a fan-shaped worm gear (633), the drive motor (631) driving the worm (632) to rotate, the worm (632) meshing with the fan-shaped worm gear (633), and the child lock rocker arm (61) being transmission-connected to the fan-shaped worm gear (633).

8. The vehicle door inward opening transfer system with a child lock according to claim 1, characterized in that: The mounting base plate (1) is provided with an outward opening micro switch (11) and a child lock micro switch (12) electrically connected to the central control drive unit, the outward opening micro switch (11) is used to detect the position of the external opening arm (25), and the child lock micro switch (12) is used to detect the position of the child lock rocker arm (61).

9. A method for operating the vehicle door inner opening transfer system with a child lock according to any one of claims 1 to 8, characterized in that: The following steps are involved: Electric door opening inside the vehicle: By pulling the inner door handle in the second direction at a small angle, the inner door handle is pressed and contacted with the first microswitch. The first microswitch feeds back a signal to the central control drive unit and electrically pulls the electric opening cable, causing the electric opening cable to pull the outer opening arm to rotate in the unlocking direction. The outer opening arm then drives the inner opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable pull the front lock, rear lock, and holding lock to achieve electric unlocking. The driver and passengers can then open the door from inside the vehicle. Mechanical door opening from inside the vehicle: Keep the child lock in the unlocked state, and pull the inner door handle in the second direction at a large angle. The inner door handle pulls the inner opening arm through the inner opening connecting arm to rotate. The inner opening arm pushes the inner opening conversion arm to rotate through the child lock clutch. The inner opening conversion arm then drives the inner opening arm to rotate in the unlocking direction, and the front lock and rear lock are pulled by the front lock opening cable and the rear lock opening cable to achieve mechanical unlocking. The driver and passengers can then open the door from inside the vehicle. Electric door closing inside the vehicle: By pulling the inner door handle in a small angle in the first direction, the inner door handle is pressed and contacted with the second microswitch, and the second microswitch feeds back a signal to the central control drive unit, and electrically pulls the electric opening cable, so that the electric opening cable pulls the outer opening arm to rotate in the unlocking direction, and then the outer opening arm is used to drive the inner opening arm and the holding lock opening arm to rotate, and the front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock and holding lock to achieve electric unlocking. Then, the driver and passengers can close the door from the inside of the vehicle, moving the door from the open state to the closed state; Mechanical door closing from inside the vehicle: By pulling the inner door handle in a first direction at a large angle, the inner door handle pushes the holding lock opening arm to rotate in the unlocking direction through the inner opening connecting arm, and the holding lock is unlocked by the holding lock cable. The driver and the passenger can then close the door from inside the vehicle, moving the door from the open state to the closed state. Electric door opening from outside the vehicle: By gently pulling the outside door handle, the outside opening cable is pulled to control the outside opening arm to rotate in the unlocking direction. The first micro switch feeds back a signal to the central control drive unit, and the electric opening cable is pulled electrically, so that the electric opening cable pulls the outside opening arm to rotate in the unlocking direction. The outside opening arm then drives the inside opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable pull the front lock, rear lock, and holding lock to achieve electric unlocking. The driver and passengers can then open the door from outside the vehicle. Mechanical door opening from outside the vehicle: Pull the outer opening cable through the outer door handle to control the outer opening arm to rotate in the unlocking direction, and then use the outer opening arm to drive the inner opening arm and the holding lock opening arm to rotate. The front lock opening cable, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock, and holding lock respectively to achieve mechanical unlocking, and the driver and passengers can open the door from outside the vehicle; Child lock unlocking: Rotate the child lock rocker arm in the direction of child lock unlocking. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch moves in the child lock track groove until it is in a state of avoiding the inner opening arm. At this time, the linkage between the inner opening arm and the inner opening conversion arm is cut off, realizing the child lock function. Child lock closing: Rotate the child lock rocker arm in the direction of child lock closing. Under the guidance of the child lock clutch and the child lock guide groove, the child lock clutch is driven to move in the child lock track groove until it is in contact with the inner opening arm. At this time, the inner opening arm and the inner opening conversion arm contact each other to achieve linkage, realizing the child lock closing function.

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