Vehicle door inward opening transfer system with child lock and operation method of vehicle door inward opening transfer system

Abstract

The invention discloses a car door inward-opening transfer system with a child lock and an operation method thereof.The car door inward-opening transfer system comprises a coaxial swing arm transfer mechanism, a car door inward-opening mechanism, a car door outward-opening mechanism, an induction control mechanism and a child lock device, and the coaxial swing arm transfer mechanism comprises a lock keeping opening arm, an inward-opening opening arm, an inward-opening conversion arm and an internal opening arm; the automobile door inward opening mechanism comprises an inner door handle and an inward opening connecting arm, the automobile door outward opening mechanism comprises an external opening arm, the external opening arm is in transmission connection with the keeping lock opening arm, the child lock device comprises a child lock rocker arm and a child lock clutch piece, the child lock clutch piece is arranged in a child lock track groove of an inward opening switching arm in a sliding mode, and the child lock rocker arm is provided with a child lock guide groove. One end of the child lock clutch piece is in guide fit with the child lock guide groove, and the child lock rocker arm can drive the child lock clutch piece to slide on the inward opening switching arm, so that the child lock clutch piece is switched between a contact state and an avoiding state relative to the inward opening switching arm. And the multi-functional effect is achieved, the linkage between parts is improved, and the assembling structure is more compact.

Description

Technical Field

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

[0002] Nowadays, with the development trend of new energy vehicles and the continuous application of electric and intelligent technologies in automobiles, traditional automobile technologies are also constantly innovating to meet customers' higher requirements, such as safety, reliability, comfort, flexibility and convenience, etc., which have been greatly improved. For this reason, multi-purpose vehicles were born. The internal space of multi-purpose vehicles is large to meet family needs, and this type of vehicle usually uses sliding doors as car doors. Automobile sliding door locks are an important safety accessory in automobile sliding doors. They must be able to ensure the reliable locking of the doors in normal use to prevent the doors from opening accidentally, and to ensure that the doors are opened smoothly when needed, ensuring passage in normal or emergency situations to avoid causing casualties and property losses, that is, they must have the characteristics of easy parking, convenient entry and exit, and electric functions. For automobile sliding door locks, the transmission mechanism is a very important functional mechanism. A series of transmission functions such as locking, unlocking, opening inside and outside, and hovering at any opening position of the door require the transmission mechanism to achieve. At present, there is no sliding door lock on the market that can meet all the above functional requirements.

[0003] The existing Chinese patent with announcement number CN103470098B discloses a split middle door transmission mechanism, including a bottom plate, an inner handle shaft is installed on the bottom plate, and a left inner opening rocker arm is pressed on the inner side of the bottom plate through a baffle piece integrally connected to the lower part of the inner handle shaft. The inner handle shaft passes through the outer part of the bottom plate and is provided with an inner opening torsion spring and a left inner opening linkage arm in sequence on the 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 on the upper right side of the bottom plate corresponding to the inner handle shaft. The opening and pushing 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 rivet shaft of the inner opening transmission plate; a conical gasket is arranged on the bottom plate corresponding to the right side rotation of the rivet shaft of the rear lock opening arm, the outer end of the left inner opening push plate connected to the conical gasket is connected to the left locking rocker arm, the gear lever of the left locking rocker arm is arranged in the guide slide groove at 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 rotatably arranged on the right upper end of the bottom plate through the rivet shaft of the inner locking toggle plate; a left outward opening rocker arm is rotatably arranged at the lower outer part of the bottom plate, and the lower end of the outward opening transmission plate is arranged in the arc-shaped 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-shaped 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 is rotatably arranged on the bottom plate at the position corresponding to the upper part of the left outer opening rocker arm, and 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 it is urgent to further optimize the existing products. Summary of the invention

[0005] The purpose of the present invention is to provide a vehicle door inner opening transfer system with a child lock and an operation method thereof, which has multifunctionality, improves the linkage between parts and components, and has the effect of 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 comprises a mounting seat plate, and the mounting seat plate is provided with:

[0007] 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 which are 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 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 door outward opening mechanism comprises an external opening arm rotatably arranged on the mounting base plate, one end of the external opening arm is transmission-connected to the lock-keeping opening arm through a connecting rod assembly, the other end of the external opening arm is transmission-connected to the internal opening arm, and the external opening arm is 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, and when the inner door handle is rotated, it is pressed and matched with the corresponding first micro switch and second micro switch, 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 comprises 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.

[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 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 and the holding lock opening cable are pulled to realize electric unlocking, and then the driver and passengers can unlock the vehicle by electric unlocking. People can open the door from inside the vehicle, and this process is the 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 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 the 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, and this process is the 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 microswitch, and the second microswitch The feedback signal is given to the central control drive unit, and the electric opening cable is electrically pulled, 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 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, and pull the front lock, rear lock and holding lock through the front lock opening cable, rear lock opening cable and holding lock opening cable to achieve mechanical unlocking, and then the driver and passenger can open the door from outside the vehicle; the driver and passenger rotate the child lock rocker arm in the direction of the 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 avoiding the inner opening arm, at this time, the linkage between the inner opening arm and the inner opening conversion arm is cut off, and the child lock function is realized;The driver and passenger rotate the child lock rocker arm in the direction of closing the child lock, 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 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 realize linkage, and the child lock closing function is realized; the present invention makes the overall structure more compact and the linkage between parts is higher by using the inner opening connecting arm for the inner opening function and the inner closing function of the door, so that the driver and passenger can realize the electric and mechanical opening and closing of the door from the inside of the car, and the door has the child lock function, so that the present invention has multifunctionality, improves the linkage between parts, and has a more compact assembly structure. ;

[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 connecting rod, and the linkage rod then pulls the holding lock opening arm to rotate through the second connecting rod. 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 vehicle 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 locking device, a locking rocker arm and a linkage rocker arm, one end of the locking rocker arm is transmission connected to the locking device, 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, a locking and unlocking clutch is slidingly provided in the locking track groove, 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, and 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 interconnected 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 contacted and linked with the internal 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 avoids and cooperates 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 separated, 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 the 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, 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 locking and unlocking clutch is utilized to drive the locking and unlocking 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 member can be used to push the push rod to reset to the 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, and when the inner door handle is rotated in a first direction, the lock-keeping opening arm cooperates with the second boss stopper, 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 with 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 meshed 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 a 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, with respect to the mechanical child lock function, the above positioning structure can be used to make the child lock locking function of the mechanical child lock more stable, thereby preventing the child lock from being accidentally opened or closed due to vehicle bumps.

[0028] Another technical purpose of the present invention is to provide an operating method of 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 micro switch, and the first micro switch 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 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, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock, and holding lock to realize electric unlocking, and then the driver and passengers can open the door from inside the vehicle;

[0030] Mechanical door 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, so that the inner door handle pulls the inner opening arm to rotate through the inner opening connecting arm, and the inner 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;

[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 micro switch, and the second micro switch 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 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, 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 close the door from inside the vehicle to move the door from an open state to a closed state;

[0032] Mechanical door closing inside the vehicle: by pulling the inner door handle in a large angle in the first direction, 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 through the holding lock cable. Then the driver and the passenger can close the door from inside the vehicle, and the door moves from the open state to the closed state;

[0033] Electric door opening from outside the vehicle: By gently pulling the outer door handle, the outer opening cable is pulled to control the outer 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 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 realize electric unlocking, so that the driver and passengers can 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, and pull the front lock, rear lock and holding lock through the front lock opening cable, rear lock opening cable and holding lock opening cable to achieve mechanical unlocking, so that the driver and passengers can open the door from outside the vehicle;

[0035] Child lock opening: Rotate 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, drive the child lock clutch to move 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;

[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 holding 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 holding opening arm and the inner opening opening arm respectively; the outer door opening mechanism includes an outer opening arm rotatably arranged on the mounting seat plate, one end of the outer opening arm is transmission-connected to the lock holding 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 an outer opening cable and an electric opener The pull cable 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, so that the driver and passengers can realize the electric and mechanical opening and closing of the door from inside the vehicle. 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 a specific embodiment of the present invention.

[0040] Figure 2 The present invention Figure 1 A partial enlarged view of area A.

[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 specific embodiment of the present invention, wherein the mounting plate is not shown.

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

[0044] Figure 6 It is a structural diagram of the inwardly 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] Fig. 9 It is an overall structural diagram of specific embodiment 3 of the present invention.

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

[0049] Fig.11 It is a partial structural diagram of specific embodiment 4 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 part; 152, bare rod part; 21, lock-keeping opening arm; 21a, avoidance groove; 210, lock-keeping opening cable; 22, internal opening connecting arm; 220, rotating connecting part; 221, first convex column; 222, second convex column; 23, internal opening arm; 23a, locking track groove; 2301, front lock opening cable; 2302, rear lock opening cable; 231, lock 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, outer opening cable; 252, electric opening cable; 26, inner opening arm; 31, inner door handle; 31a, mounting groove; 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 matching part; 611a, locking matching 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 in conjunction with the accompanying drawings. Specific embodiment 1

[0053] A car door inner opening transfer system with a child lock, such as Figure 1-5As shown, this embodiment is a mechanical child lock, including a mounting base plate 1, on which a coaxial swing arm transfer mechanism, a door inner opening mechanism, a door outer opening mechanism, a sensing control mechanism and a child lock device are arranged, and a control system is arranged inside the vehicle machine, the coaxial swing arm transfer mechanism includes a lock-keeping 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 the 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-keeping opening arm 21 is connected to a lock-keeping opening cable 210; the door inner opening mechanism The door opening mechanism comprises 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 in a transmission manner, 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 in a transmission manner respectively, 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 door opening mechanism comprises an outer opening arm 25 rotatably arranged on the mounting seat plate 1, and one end of the outer opening arm 25 is connected to the inner door handle 31 in a rotation manner. The outer opening arm 25 is connected to the lock holding arm 21 through a 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 lock holding arm 21 and the inner opening arm 23 are controlled to unlock through the central control drive unit linked coaxial swing arm transfer mechanism. 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 the contact state and the avoidance state relative to the inner opening opening arm 26. A locking torsion spring 14 is provided between the lock opening arm 21 and the inner opening conversion arm 24.The link 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 the first link 42, and the other end of the linkage rod 41 is rotatably connected to the lock-maintaining opening arm 21 through the second link 43. When the external opening arm 25 rotates toward the unlocking direction, the linkage rod 41 is pulled to rotate through the first link 42, and the linkage rod 41 then pulls the lock-maintaining opening arm 21 to rotate through the second link 43. When the lock-maintaining opening arm 21 rotates, the lock-maintaining opening cable 210 is pulled to control the lock-maintaining unlocking. 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, so as to realize the opening of the front and rear locks of the vehicle door. In addition, in this embodiment, an emergency cable 232 is connected to the internal opening arm 23. When the vehicle body loses power, the internal opening arm 23 can be driven to open the front and rear locks in an emergency by pulling the emergency cable 232. ;

[0054] like Figure 3-5 and Figure 7 As shown, the mounting base plate 1 is provided with a locking mechanism, which includes a lock device 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 lock device 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, and 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. The lock device 71 can control the locking rocker arm 72 to drive the linkage rocker arm 73 to rotate. By utilizing the guiding effect of the locking track groove 23a and the locking and unlocking clutch 231, the linkage rocker arm 73 rotates to drive the locking and unlocking clutch 231 to slide in the locking track groove 23a, thereby achieving The clutch switching between the external opening arm 25 and the internal opening arm 23 is now performed; a linkage arm reset torsion spring 731 for resetting is provided between the linkage rocker arm 73 and the mounting base plate 1, and the linkage arm reset torsion spring 731 always has a movement tendency to drive the linkage rocker arm 73 to drive the lock and unlock clutch 231 to move to a state of contact with the external opening arm 25; in this embodiment, the internal opening conversion arm 24 is provided with a strip-shaped linkage groove 24b corresponding to the locking track groove 23a, and the linkage groove 24b corresponds to the locking track groove 23a of the internal opening arm 23, and the end of the lock and unlock clutch 231 can slide in the linkage groove 24b. In this embodiment, since the internal opening conversion arm 24 and the internal opening arm 23 cannot be separated, it is ensured that when the child lock is in the unlocked state, the front lock and the rear lock can be mechanically unlocked at any time, thereby achieving the purpose of mechanical one-time opening in the vehicle.

[0055] like Figure 1-2 and Figure 6As shown, the lock-keeping opening arm 21 is provided with an avoidance groove 21a, and the first and second bosses 221 and 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 penetrated in the avoidance groove 21a. When the inner door handle 31 is rotated in the first direction, the lock-keeping opening arm 21 is matched with the second boss 222 for stopping, 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 link with the coaxial swing arm transfer mechanism to act on the inner opening arm 23 to rotate in the unlocking direction. The first direction and the second direction in this embodiment are respectively two opposite directions extending along the avoidance groove 21a, and the first direction is the attached Figure 1 The second direction is the direction of movement to the right. Figure 1 The mounting seat plate 1 is provided with an outward opening micro switch 11 and a child lock micro switch 12 which are 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 matching part 611, the elastic matching 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 matching part 611 is provided with a plurality of locking matching grooves 611a on the side facing the locking protrusion 13, and the locking protrusion 13 is locked with the corresponding locking matching 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, thereby preventing 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 a sliding portion 151 and a light rod portion 152 which are integrally arranged. The linkage rocker arm 73 is provided with a locking guide groove 73b, and the light rod portion 152 is passed through the locking guide groove 73b and cooperates with the 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°, so that the inner door handle 31 is pressed and contacted with the first microswitch 51, and the first microswitch 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, the large angle rotation range of the inner door handle 31 in this embodiment is set to 25-35°, 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 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 to open the front door. The front and rear locks are mechanically unlocked, and the driver and passengers can open the door from inside the vehicle. This process is the mechanical door opening process inside the vehicle; 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 the external opening arm 25 is used to drive the internal opening arm 23 to rotate, and the front lock opening cable 2301 and the rear lock opening cable 2302 are used to pull the front lock and the rear lock to achieve electric unlocking, and then the driver and passengers can close the door from inside the vehicle. This process is the mechanical door opening process inside the vehicle. The process of inner electric door closing; the driver and passenger pulls the inner door handle 31 in a first direction at a large angle, 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 holding cable, and then the driver and passenger can close the door from inside the vehicle. This process is the process of mechanical door closing 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 the 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 rotate 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 which 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 rotate 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. The inner opening arm 26 is in contact with the inner opening opening arm 26. At this time, the inner opening opening arm 26 and the inner opening conversion arm 24 can contact each other to realize linkage, thereby realizing the child lock closing function; the present invention makes the overall structure more compact and the linkage between parts higher by using the inner opening connecting arm 22 for the inner opening function 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 vehicle. At the same time, the door has a child lock function, making the present invention multifunctional, improving the linkage between parts, and making the assembly structure more compact. ;

[0058] The present invention provides an operation method of a vehicle door inner 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 micro switch, and the first micro switch 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 external opening arm to rotate in the unlocking direction, and then uses the external opening arm to drive the internal 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 electric unlocking, and then the driver and passengers can open the door from inside the vehicle;

[0060] Mechanical door 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°, so that the inner door handle pulls the inner opening arm to rotate through the inner opening connecting arm, and the inner 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;

[0061] Electric door closing inside the vehicle: by pulling the inner door handle in the first direction at a small angle of about 10°, the inner door handle is pressed and contacted with the second micro switch, and the second micro switch 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 external opening arm to rotate in the unlocking direction, and then uses the external opening arm to drive the internal 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 electric unlocking, and then the driver and passengers can close the door from inside the vehicle to move the door from the open state to the closed state;

[0062] Mechanical door closing inside the vehicle: by pulling the inner door handle toward the first direction at a large angle of about 30°, the inner door handle pushes the holding lock opening arm to rotate toward the unlocking direction through the inner opening connecting arm, and the holding lock is unlocked through the holding lock cable. Then the driver and passengers can 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 outer door handle, the outer opening cable is pulled to control the outer opening arm to rotate in the unlocking direction, so that the outer opening arm is pressed and contacted with the outer opening micro switch, and the first micro switch 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 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 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, and pull the front lock, rear lock and holding lock through the front lock opening cable, rear lock opening cable and holding lock opening cable to achieve mechanical unlocking, so that 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, and under the guidance of the child lock clutch and the child lock guide groove, drive the child lock clutch to move 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;

[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 in the car: 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°, so that the inner door handle pulls the inner opening arm to rotate through the inner opening connecting arm, and the inner 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 car, realizing mechanical one-time opening of the car door;

[0068] Emergency mechanical opening in the car: This function can be selected according to vehicle requirements. Pull the emergency cable directly in the car, and the front and rear locks will be mechanically unlocked through the front and rear lock opening cables. Then the driver and passengers can open the door from inside the car.

[0069] Mechanical locking and unlocking in the vehicle: the sliding part is operated to slide in the first direction, driving the linkage rocker arm to rotate, thereby driving the lock and unlock clutch to move, causing the outer opening arm and the inner opening conversion arm to separate from the inner opening arm, thereby realizing the locking function; the sliding part slides in the first direction, driving the linkage rocker arm to rotate in the opposite direction, thereby driving the lock and unlock clutch to move, causing the outer opening arm and the inner opening conversion arm to combine with the inner opening arm, thereby realizing the unlocking function;

[0070] Central control locking and unlocking: Control the vehicle control system by operating the lock button of the central control switch or the remote control key, drive the locking device to rotate in the first direction, drive 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 inner opening conversion arm to separate from the internal opening arm, thereby realizing the locking function; control the control system by operating the unlock button of the central control switch, remote control key, etc. to rotate in the second direction, drive 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 inner 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 a child lock, such as Figure 8As shown, the present embodiment is a door that needs to be opened twice, and 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 is in contact and linkage 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 impossible 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 in detail here. Specific embodiment three

[0075] A car door inner opening transfer system with a 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 is engaged 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 in detail 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 control the child lock actuator through the control system 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 is driven to move 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 to realize 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 child lock closing direction. 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 a child lock, such as Fig.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 arranged on the mounting base plate 1. The linkage rocker arm 73 is provided with a clutch guide groove 73a. One end of the locking and unlocking 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 locking and unlocking 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 whole 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 "disconnected" state, thereby disconnecting the linkage between the external opening arm 25 and the internal opening arm 23, preventing the 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 in detail here.

[0083] The above description is only a preferred embodiment of the present invention, so all 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 base 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), wherein 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; The vehicle door outer opening mechanism comprises an outer opening arm (25) rotatably arranged on a mounting base plate (1), one end of the outer opening arm (25) is transmission-connected to the lock-holding opening arm (21) via a connecting rod assembly (4), the other end of the outer opening arm (25) is transmission-connected to the inner opening arm (23), and the outer opening arm (25) is connected to an outer 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 first micro switch (51) and the 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; The 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).

2. A vehicle door inner 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 seat plate (1), one end of the linkage rod (41) is rotatably connected to the external opening arm (25) via a first linkage rod (42), and the other end of the linkage rod (41) is rotatably connected to the retaining lock opening arm (21) via a second linkage rod (43).

3. A vehicle door inner 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 locking device (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 locking device (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), and 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. A vehicle door inner 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) is in contact and linkage 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) is in avoidance cooperation with the locking and unlocking clutch (231) through the idle stroke groove (24c).

5. A vehicle door inner 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 comprises 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) to move away from the linkage rocker arm (73).

6. The vehicle door inner opening transfer system with a child lock according to claim 1, characterized in that: The lock-keeping arm (21) is provided with an avoidance groove (21a), and the first convex column (221) and the 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 arm (26), and the second convex column (222) is inserted into the avoidance groove (21a), and when the inner door handle (31) is rotated in the first direction, the lock-keeping arm (21) and the second convex column (222) stop the matching 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) 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 with the coaxial swing arm transfer mechanism to act on the inner opening arm (23) to rotate in the unlocking direction.

7. The vehicle door inner opening transfer system with a child lock according to claim 1, characterized in that: The child lock device further comprises an actuator (63), wherein the actuator (63) comprises a driving motor (631), a worm (632) and a fan-shaped worm gear (633), wherein the driving motor (631) drives the worm (632) to rotate, the worm (632) meshes with the fan-shaped worm gear (633), and the child lock rocker arm (61) is drivingly connected with the fan-shaped worm gear (633).

8. The vehicle door inner 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) which are electrically connected to the central control drive unit, the outward opening micro switch (11) being used to detect the position of the external opening arm (25), and the child lock micro switch (12) being used to detect the position of the child lock rocker arm (61).

9. The vehicle door inner opening transfer system with a child lock according to claim 1, characterized in that: 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 arranged on the side of the child lock rocker arm (61), the locking protrusion (13) being bent and arranged on the mounting seat plate (1), a plurality of locking matching grooves (611a) being provided on a side of the elastic matching portion (611) facing the locking protrusion (13), and the locking protrusion (13) being lockingly matched with the corresponding locking matching grooves (611a).

10. An operating method of the vehicle door inner opening transfer system with a child lock as claimed in any one of claims 1 to 9, 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 micro switch, and the first micro switch 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 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, rear lock opening cable, and holding lock opening cable are used to pull the front lock, rear lock, and holding lock to realize electric unlocking, and then the driver and passengers can open the door from inside the vehicle; Mechanical door 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, so that the inner door handle pulls the inner opening arm to rotate through the inner opening connecting arm, and the inner 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; 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 micro switch, and the second micro switch 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 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, 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 close the door from inside the vehicle to move the door from an open state to a closed state; Mechanical door closing inside the vehicle: by pulling the inner door handle in a large angle in the first direction, 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 through the holding lock cable. Then the driver and the passenger can close the door from inside the vehicle, and the door moves from the open state to the closed state; Electric door opening from outside the vehicle: By gently pulling the outer door handle, the outer opening cable is pulled to control the outer 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 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 realize electric unlocking, so that the driver and passengers can 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, and pull the front lock, rear lock and holding lock through the front lock opening cable, rear lock opening cable and holding lock opening cable to achieve mechanical unlocking, so that the driver and passengers can open the door from outside the vehicle; Child lock opening: Rotate 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, drive the child lock clutch to move 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; 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.

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