Electric release door lock inward-opening double-pull unlocking mechanism driven by connecting rod

Abstract

The invention relates to a connecting rod transmission electric release door lock inward-opening double-pull unlocking mechanism which sequentially comprises an inward-opening pull rod, an inward-opening double-pull transition rod, a double-pull release transition rod, a double-pull transmission rod, a central control transmission gear, a central control transmission rod and a central control transmission transition rod. When the inward opening pull rod rotates, the electric opening release rod is driven to rotate through the inward opening transition rod, when the electric opening release rod rotates, the outward opening release rod is pushed, when the outward opening release rod rotates, the pawl is released by pushing the pawl release rod, and unlocking is completed. According to the electric unlocking system, inward-opening double-pull unlocking identical to that of a mechanical lock can be achieved, and the technical defect that an existing electric unlocking system cannot mechanically unlock a central control lock under the power-off working condition is overcome. By arranging a two-stage mechanical transmission structure, complete actions of central control unlocking and spring bolt releasing can be completed by continuously pulling the inward opening handle twice without depending on electric driving, and mechanical unlocking of the vehicle door can still be achieved under emergency situations such as collision power failure of the vehicle.

Description

Technical Field

[0001] The present invention relates to the field of automobile door locks, and in particular to an inner-opening double-pull unlocking mechanism of an electrically released door lock driven by a connecting rod. Background Art

[0002] Currently, the industry's most common mechanical central locks require a double-pull unlocking mechanism, where the first pull releases the central lock through mechanical transmission, and the second pull unlocks the door. The electric lock's internal opening mechanism, serving as a backup for electric unlocking, typically requires only a single pull to unlock the door. In existing technology, central lock releases can only be released electrically. This raises the question of how, in a collision, if the central lock is not electrically unlocked and the vehicle is powered off, and there is no other way to unlock the central lock, the door cannot be opened via the external handle. This presents a technical flaw in the inability to mechanically open the door in an emergency.

[0003] Therefore, it is necessary to provide a new electrically released door lock dual-pull mechanism driven by a connecting rod, which can achieve the same double-pull unlocking function as a mechanical lock. This aims to overcome the technical defect of existing electric unlocking systems that cannot mechanically release the central locking system during power outages. By setting up a two-stage mechanical transmission structure, the central locking system can be unlocked and the deadbolt released by pulling the inner handle twice in a row without relying on electrical drive. This ensures that the door can still be mechanically unlocked in emergency situations such as collisions and power outages. Summary of the Invention

[0004] The present invention aims to provide a novel, electrically released, dual-pull mechanism for door locks, driven by a connecting rod. This mechanism achieves the same dual-pull unlocking mechanism as a mechanical lock, resolving the technical drawback of existing electric unlocking systems, which are unable to mechanically release the central locking system during power outages. By employing a two-stage mechanical transmission structure, the mechanism allows the central locking system to be unlocked and the deadbolt released by pulling the inner handle twice, independent of electrical drive. This ensures that the door can still be mechanically unlocked in emergency situations, such as collisions and power outages.

[0005] In order to solve the problems existing in the prior art, the present invention provides a connecting rod driven electric release door lock inner opening double pull unlocking mechanism, comprising:

[0006] An inner opening tie rod rotating around the inner opening tie rod mounting hole is provided with an inner opening double pull transition rod mounting hole;

[0007] An inward-opening double-pull transition rod, one end of which is provided with an inward-opening pull rod mounting column rotatably mounted in the inward-opening double-pull transition rod mounting hole, and the other end is provided with a double-pull release transition rod limiting column;

[0008] A double-pull release transition rod rotates around the double-pull release mounting hole, and is provided with a limit arm, an inwardly opened double-pull transition rod mounting slot, and a double-pull transmission rod mounting column, wherein the double-pull release transition rod limit column slides in the inwardly opened double-pull transition rod mounting slot;

[0009] An inwardly opening transition rod rotates about a first pivot and is provided with a contact column and a transmission column. When the contact column contacts the limit arm, it moves with the limit arm. When the limit arm rotates to a fixed position, the contact column is disengaged from the limit arm and reset by a reset mechanism. After reset, the transmission column is limited by the push arm of the electric release lever.

[0010] A double-pull transmission rod, with a double-pull release transition rod mounting hole and a central control transmission gear mounting slot at both ends, and the double-pull transmission rod mounting column is rotatably arranged in the double-pull release transition rod mounting hole;

[0011] The central control transmission gear has a central control transmission column on its gear surface;

[0012] The central control transmission rod has a U-shaped groove and a central control transition installation slot at both ends. The central control transmission column passes through the U-shaped groove and the central control transmission gear installation slot in sequence, so that the double-pull transmission rod drives the central control transmission rod to move;

[0013] The central control transmission transition rod is provided with a central control transmission rod installation limit column and a central control transmission transition rod limit column. The central control transmission rod installation limit column is installed in the central control transition installation slide groove and is driven to move by the central control transition installation slide groove;

[0014] The contact column is limited by the limiting arm and is in a safety-on state; the contact column is free from the limiting arm, and the transmission column is limited by the push arm and is in a safety-off state;

[0015] In the released state, when the inner opening pull rod rotates, the inner opening transition rod drives the electric opening release rod to rotate. When the electric opening release rod rotates, it pushes the outer opening release rod. When the outer opening release rod rotates, it pushes the pawl release rod. The pawl is linked with the pawl release rod, and the pawl is driven to rotate to complete the release, completing the unlocked state.

[0016] Optionally, in the double-pull unlocking mechanism for the inner opening of the electric release door lock driven by the connecting rod, the outer opening release rod is also provided with a central control surface. When the central control surface is disengaged from the central control transmission transition rod limit column, it is in the upper central control safety state; when the central control transmission transition rod moves and drives the central control transmission transition rod limit column to contact the central control surface, it is in the released central control safety state.

[0017] Optionally, a double-pull unlocking mechanism is opened in the connecting rod-driven electric release door lock, and the reset mechanism is a torsion spring.

[0018] Optionally, in the connecting rod driven electric release door lock, a double-pull unlocking mechanism is provided inside, and the outside opening release rod is further provided with an electric opening contact surface and a pawl contact surface.

[0019] Optionally, a double-pull unlocking mechanism is opened in the connecting rod-driven electric release door lock, and the electric release rod is provided with a cam surface, and the cam surface is in contact with the electric release contact surface.

[0020] Optionally, a double-pull unlocking mechanism is opened in the electric release door lock driven by the connecting rod, and the pawl release rod is provided with an outward opening contact surface, and the outward opening contact surface is in contact with the pawl contact surface.

[0021] Optionally, a double-pull unlocking mechanism is opened in the connecting rod-driven electric release door lock, and the horizontal sliding direction of the double-pull transmission rod is perpendicular to the rotation axis of the central control transmission gear.

[0022] Optionally, in the double-pull unlocking mechanism of the connecting rod-driven electric release door lock, the rotation angle range of the inner-opening transition rod is 23°~27°, the rotation angle range of the central control transmission gear is 18°~22°, and the horizontal sliding path range of the double-pull transmission rod is 6.2~6.8 mm.

[0023] In the connecting rod driven electric release door lock inner opening double pull unlocking mechanism provided by the present invention, there are the following

[0024] Beneficial effects:

[0025] 1. Emergency escape protection: This invention utilizes a two-stage mechanical transmission structure to achieve complete central unlocking and lock tongue release by pulling the inner handle twice, independent of electric drive. This ensures that the door can still be mechanically unlocked in emergency situations such as collisions and power outages, improving the success rate of rescue.

[0026] 2. Simple and reliable structure: The parts assembly adopts mechanical structures such as hole-shaft matching, slide limit and gear transmission, without relying on electronic components, and the manufacturing cost and failure rate are low;

[0027] 3. Operational compatibility: The double-pull operation logic is consistent with traditional mechanical locks, and users do not need to adapt to new processes;

[0028] 4. Modular integration: It can directly replace the inner opening mechanism of the existing electric lock without changing the door layout and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A diagram showing the inward-opening double-pull unlocking mechanism in the embodiment of the present invention in the secured state;

[0030] Figure 2 A diagram showing the release state of the inner opening double-pull unlocking mechanism provided in an embodiment of the present invention;

[0031] Figure 3 This is a diagram of the reset state of the inward-opening double-pull unlocking mechanism provided by an embodiment of the present invention after the safety is released;

[0032] Figure 4 A diagram showing the unlocking state of the inward-opening double-pull unlocking mechanism provided in an embodiment of the present invention;

[0033] Figure 5-7 A schematic diagram of the partial assembly of the inward-opening double-pull unlocking mechanism provided by an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the central control unlocking mechanism for inward opening with double pulls provided in an embodiment of the present invention;

[0035] Figure 9 A schematic diagram of the upper center control of the inward-opening double-pull unlocking mechanism provided by an embodiment of the present invention;

[0036] Figure 10 A schematic diagram of a pawl release transmission mechanism provided in an embodiment of the present invention;

[0037] Figure 11-20 A partial schematic diagram of the inward-opening double-pull unlocking mechanism provided in an embodiment of the present invention.

[0038] Among them, 100-inner opening tie rod; 101-guide groove; 102-coupling groove; 103-inner opening double-pull transition rod mounting hole; 104-inner opening tie rod mounting hole; 200-inner opening double-pull transition rod; 201-inner opening tie rod mounting column; 202-double-pull release transition rod limiting column; 300-double-pull release transition rod; 301-limiting arm; 302-inner opening double-pull transition rod mounting slot; 303-double-pull transmission rod mounting column; 304-double-pull release mounting hole; 400-double-pull transmission rod; 401-double-pull release transition rod mounting hole; 402-central control transmission gear mounting slot; 500-central control transmission gear; 501-central control transmission column; 600-central control transmission rod; 601-U-shaped slot; 60 2-Central control transition mounting groove; 700-Central control transmission transition rod; 701-Central control transmission rod mounting limit column; 702-Central control transmission transition rod limit column; 800-Inward opening transition rod; 801-Contact column; 802-Transmission column; 803-First fixed end mounting column of reset mechanism; 900-Electric opening release rod; 901-Second movable end mounting column of reset mechanism; 902-Push arm; 903-Cam surface; 1000-Outward opening release rod; 1001-Electric opening contact surface; 1002-Central control surface; 1003-Pawl contact surface; 1100-Pawl release rod; 1101-Outward opening contact surface; 1200-Reset mechanism; P1-First pivot; P2-Second pivot; P3-Third pivot. DETAILED DESCRIPTION

[0039] The following is a more detailed description of the specific embodiments of the present invention with reference to schematic diagrams. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are not to exact scale, and are only used for the purpose of conveniently and clearly illustrating the embodiments of the present invention.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] Currently, the industry's most common mechanical central locks require a double-pull unlocking mechanism, where the first pull releases the central lock through mechanical transmission, and the second pull unlocks the door. The electric lock's internal opening mechanism, serving as a backup for electric unlocking, typically requires only a single pull to unlock the door. In existing technology, central lock releases can only be released electrically. This raises the question of how, in a collision, if the central lock is not electrically unlocked and the vehicle is powered off, and there is no other way to unlock the central lock, the door cannot be opened via the external handle. This presents a technical flaw in the inability to mechanically open the door in an emergency.

[0042] To address the challenges of the existing technology, the present invention provides a novel electrically released dual-pull door lock mechanism driven by a connecting rod. This mechanism achieves the same dual-pull unlocking mechanism as a mechanical lock, resolving the technical drawback of existing electric unlocking systems, which cannot mechanically release the central locking system in a power outage. By employing a two-stage mechanical transmission structure, the mechanism allows the central locking system to be unlocked and the deadbolt released by pulling the inner handle twice, without relying on electrical power. This ensures that the door can still be mechanically unlocked in emergency situations, such as collisions and power outages.

[0043] In order to solve the problems existing in the prior art, the present invention provides a connecting rod driven electric release door lock inner opening double pull unlocking mechanism, comprising:

[0044] refer to Figure 11 , the inner opening tie rod 100 rotates around the inner opening tie rod mounting hole 104, which is provided with an inner opening double pull transition rod mounting hole 103;

[0045] Specifically, the inner opening tie rod 100 is mounted on the second pivot axis P2 through the inner opening tie rod mounting hole 104 and rotates along the second pivot axis P2. The inner opening tie rod 100 is further provided with a guide groove 101 and a coupling groove 102.

[0046] Inward opening double pull transition rod 200, reference Figure 12 , one end of the inner-open double-pull transition rod 200 is provided with an inner-open pull rod mounting column 201 rotatably mounted on the inner-open double-pull transition rod mounting hole 103, and the other end is provided with a double-pull release transition rod limiting column 202;

[0047] Specifically, the inner-open double-pull transition rod mounting hole 103 and the inner-open pull rod mounting column 201 cooperate to form a rotation pair.

[0048] refer to Figure 13 The double-pull release transition rod 300 rotates around the double-pull release mounting hole 304, and is provided with a limiting arm 301, an inner-open double-pull transition rod mounting slot 302 and a double-pull transmission rod mounting column 303, and the double-pull release transition rod limiting column 202 slides in the inner-open double-pull transition rod mounting slot 302;

[0049] Specifically, the inner opening pull rod 100 drives the double-pull release transition rod 300 to rotate through the inner opening double-pull transition rod 200, and the double-pull release transition rod 300 is installed on the third pivot P3 through the double-pull release mounting hole 304 and rotates along it, and the double-pull release transition rod limit column 202 and the inner opening double-pull transition rod mounting groove 302 cooperate to form a sliding pair.

[0050] refer to Figure 1-7 The inward-opening transition rod 800 rotates around the first pivot axis P1 and is provided with a contact column 801 and a transmission column 802. When the contact column 801 contacts the limiting arm 301, it moves with the limiting arm 301. When the limiting arm 301 rotates to a fixed position, the contact column 801 is disengaged from the limiting arm 301 and is reset by a reset mechanism 1200. After reset, the transmission column 802 is limited by the push arm 902 of the electric open release lever 900. At this time, the transmission column 802 is located in the coupling groove 102.

[0051] Typically, the limit arm 301 limits the rotational freedom of the inward-opening transition rod 800 along the first pivot axis P1. After finite element simulation and 100,000 cycle durability tests (based on GB / T 15089-2021 "Road vehicle door locks and door retainers" and QC / T 627-2013 "Automobile electric vehicle door lock device"), when the rotation angle range of the inward-opening transition rod 800 is 23°~27°, the limiting stability and unlocking efficiency are optimal.

[0052] Double pull transmission rod 400, reference Figure 14 , a double-pull release transition rod mounting hole 401 and a central control transmission gear mounting slot 402 are respectively provided at both ends thereof, and the double-pull transmission rod mounting column 303 is rotatably set in the double-pull release transition rod mounting hole 401;

[0053] Specifically, the double-pull transmission rod mounting column 303 and the double-pull release transition rod mounting hole 401 cooperate to form a rotation pair, and the rotation of the double-pull release transition rod 300 drives the double-pull transmission rod 400 to move horizontally.

[0054] Central control transmission gear 500, reference Figure 15 , a central control transmission column 501 is provided on the surface of the gear;

[0055] Central control transmission rod 600, reference Figure 16 , a U-shaped groove 601 and a central control transition installation groove 602 are respectively provided at both ends. The central control transmission column 501 passes through the U-shaped groove 601 and the central control transmission gear installation groove 402 in sequence, so that the double-pull transmission rod 400 drives the central control transmission rod 600 to move;

[0056] Specifically, the central control transmission gear mounting slot 402 and the central control transmission column 501 cooperate to form a sliding pair, and the U-shaped slot 601 and the central control transmission column 501 cooperate to form a rotating pair. The horizontal lateral movement of the double-pull transmission rod 400 drives the central control transmission gear 500 to rotate, and the rotation of the central control transmission gear 500 drives the central control transmission rod 600 to move horizontally. The displacement of the central control transmission rod 600 is controlled by the rotation angle of the central control transmission gear 500. The horizontal sliding direction of the double-pull transmission rod 400 is perpendicular to the rotation axis of the central control transmission gear 500.

[0057] Among them, after finite element simulation and 100,000 cycle durability test verification (based on GB / T 15089-2021 "Road Vehicle Door Locks and Door Retainers" and QC / T 627-2013 "Automobile Electric Vehicle Door Lock Device"), when the rotation angle range of the central control transmission gear 500 is 18°~22°, the horizontal sliding path range of the double-pull transmission rod 400 is 6.2~6.8 mm, and the central control unlocking efficiency is optimal.

[0058] Central control transmission transition rod 700, reference Figure 17 , which is provided with a central control transmission rod installation limit column 701 and a central control transmission transition rod limit column 702, the central control transmission rod installation limit column 701 is installed in the central control transition installation slide 602, and is driven to move by the central control transition installation slide 602;

[0059] The contact column 801 is limited by the limiting arm 301 and is in a safety-on state; the contact column 801 is free from the limiting arm 301, and the transmission column 802 is limited by the push arm 902 and is in a safety-off state;

[0060] Furthermore, in the inner-opening double-pull unlocking mechanism of the electric release door lock driven by the connecting rod, the outer-opening release rod 1000 is also provided with a central control surface 1002. When the central control surface 1002 is disengaged from the central control transmission transition rod limiting column 702, it is in the upper central control safety state; when the central control transmission transition rod 700 moves and drives the central control transmission transition rod limiting column 702 to contact the central control surface 1002, it is in the released central control safety state.

[0061] In the released state, when the inner opening pull rod 100 rotates, it drives the electric opening release rod 900 to rotate through the inner opening transition rod 800. When the electric opening release rod 900 rotates, it pushes the outer opening release rod 1000. When the outer opening release rod 1000 rotates, it pushes the pawl release rod 1100. The pawl is linked with the pawl release rod 1100, and the pawl is driven to rotate to complete the release, completing the unlocked state.

[0062] The outward opening release lever 1000 is further provided with an electric opening contact surface 1001 and a pawl contact surface 1003. The electric opening release lever 900 is provided with a cam surface 903. The pawl release lever 1100 is provided with an outward opening contact surface 1101. The specific unlocking process is as follows:

[0063] When releasing insurance in the first stage, refer to Figure 1-3 , the inner opening pull rod 100 rotates clockwise for the first time (looking forward), and the double-pull release transition rod 300 also rotates clockwise (looking forward), releasing the constraint of the limit arm 301 on the contact column 801. Then, the reset mechanism 1200 drives the inner opening transition rod 800 to rotate counterclockwise (looking forward) and enter the coupled state (i.e., the transmission column 802 is limited by the push arm 902 of the electric release rod 900), completing the release of the safety. The inner opening pull rod 100 rotates counterclockwise (looking forward) along the second pivot P2 to reset;

[0064] On the other hand, the solution of Zhongkong Insurance, refer to Figure 1-4 、 Figure 8 and Figure 9 , the inner opening pull rod 100 rotates clockwise for the first time (looking forward), the double-pull release transition rod 300 also rotates clockwise (looking forward), the double-pull transmission rod 400 moves horizontally to the right (looking forward), the central control transmission gear 500 rotates clockwise (looking forward), the central control transmission rod 600 also moves horizontally to the right (looking forward), the central control transmission rod 600 drives the central control transmission transition rod 700 to move to the right (looking forward), and drives the central control transmission transition rod limit column 702 to press against the central control surface 1002 of the outer opening release rod 1000, completing the release of the central control safety.

[0065] When the second phase is unlocked, refer to Figure 4 and Figure 10, the inner opening pull rod 100 rotates clockwise for the second time (from the front), and the inner opening pull rod 100 directly controls the electric opening release rod 900 to rotate clockwise along the second pivot P2 (from the front) through the inner opening transition rod 800. At this time, the electric opening release rod 900 (reference Figure 18 ) of the cam surface 903 and the outward release lever 1000 (reference Figure 19 ) contacts the electric opening contact surface 1001, and the electric opening release lever 900 pushes the outer opening release lever 1000 to rotate counterclockwise (top view) through this contact. At the same time, the pawl contact surface 1003 of the outer opening release lever 1000 and the pawl release lever 1100 (reference Figure 20 ) contacts the outward opening contact surface 1101, and the outward opening release rod 1000 pushes the pawl release rod 1100 to rotate clockwise (looking down) through this contact. The pawl release rod 1100 cooperates with the pawl hole shaft, and the pawl is driven to rotate clockwise (looking down) to complete the release, release the lock tongue limit, and thus achieve unlocking.

[0066] refer to Figure 5-7 In the double-pull unlocking mechanism of the inner opening electric release door lock driven by the connecting rod, the reset mechanism 1200 is a torsion spring, and the pre-tightening rotation center of the reset mechanism 1200 is coaxial with the rotation center of the inner opening transition rod 800. The torsion spring is sleeved on the inner opening transition rod 800, and the torsion spring includes a first fixed end and a second movable end. The first fixed end is fixedly mounted on the first fixed end mounting column 803 of the reset mechanism of the inner opening transition rod 800, and the second movable end is limited to the second movable end mounting column 901 of the reset mechanism of the electric open release rod 900.

[0067] In summary, the connecting rod-driven electric release door lock inner opening double-pull unlocking mechanism provided by the present invention has the following beneficial effects:

[0068] 1. Emergency escape protection: The purely mechanical double-pull unlocking design allows the central locking system to be mechanically released in the event of a power outage or electronic control failure, increasing the success rate of rescue.

[0069] 2. Simple and reliable structure: The parts assembly adopts mechanical structures such as hole-shaft matching, slide limit and gear transmission, without relying on electronic components, and the manufacturing cost and failure rate are low;

[0070] 3. Operational compatibility: The double-pull operation logic is consistent with traditional mechanical locks, and users do not need to adapt to new processes;

[0071] 4. Modular integration: It can directly replace the inner opening mechanism of the existing electric lock without changing the door layout and has strong adaptability.

[0072] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. Any person skilled in the art who, without departing from the scope of the present invention, makes any equivalent substitution, modification, or other changes to the technical solution and technical content disclosed in the present invention shall be deemed to be within the scope of the present invention and still fall within the scope of protection of the present invention.

Claims

1. A connecting rod driven electric release door lock inner opening double pull unlocking mechanism, characterized in that: include: An inner opening tie rod rotating around the inner opening tie rod mounting hole is provided with an inner opening double pull transition rod mounting hole; An inward-opening double-pull transition rod, one end of which is provided with an inward-opening pull rod mounting column rotatably mounted in the inward-opening double-pull transition rod mounting hole, and the other end is provided with a double-pull release transition rod limiting column; A double-pull release transition rod rotates around the double-pull release mounting hole, and is provided with a limit arm, an inwardly opened double-pull transition rod mounting slot, and a double-pull transmission rod mounting column, wherein the double-pull release transition rod limit column slides in the inwardly opened double-pull transition rod mounting slot; An inwardly opening transition rod rotates about a first pivot and is provided with a contact column and a transmission column. When the contact column contacts the limit arm, it moves with the limit arm. When the limit arm rotates to a fixed position, the contact column is disengaged from the limit arm and reset by a reset mechanism. After reset, the transmission column is limited by the push arm of the electric release lever. A double-pull transmission rod, with a double-pull release transition rod mounting hole and a central control transmission gear mounting slot at both ends, and the double-pull transmission rod mounting column is rotatably arranged in the double-pull release transition rod mounting hole; The central control transmission gear has a central control transmission column on its gear surface; The central control transmission rod has a U-shaped groove and a central control transition installation slot at both ends. The central control transmission column passes through the U-shaped groove and the central control transmission gear installation slot in sequence, so that the double-pull transmission rod drives the central control transmission rod to move; The central control transmission transition rod is provided with a central control transmission rod installation limit column and a central control transmission transition rod limit column. The central control transmission rod installation limit column is installed in the central control transition installation slide groove and is driven to move by the central control transition installation slide groove; The contact column is limited by the limiting arm and is in a safety-on state; the contact column is free from the limiting arm, and the transmission column is limited by the push arm and is in a safety-off state; In the released state, when the inner opening pull rod rotates, the inner opening transition rod drives the electric opening release rod to rotate. When the electric opening release rod rotates, it pushes the outer opening release rod. When the outer opening release rod rotates, it pushes the pawl release rod. The pawl is linked with the pawl release rod, and the pawl is driven to rotate to complete the release, completing the unlocked state.

2. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 1, characterized in that: The outward-opening release rod is also provided with a central control surface. When the central control surface is disengaged from the central control transmission transition rod limit column, it is in an upper central control safety state; when the central control transmission transition rod moves and drives the central control transmission transition rod limit column to contact the central control surface, it is in a released central control safety state.

3. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 1, characterized in that: The reset mechanism is a torsion spring.

4. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 1, characterized in that: The outward opening release lever is further provided with an electric opening contact surface and a ratchet contact surface.

5. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 4, characterized in that: The electric switch release lever is provided with a cam surface, and the cam surface contacts the electric switch contact surface.

6. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 4, characterized in that: The pawl release lever is provided with an outward-opening contact surface, and the outward-opening contact surface contacts the pawl contact surface.

7. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 1, characterized in that: The horizontal sliding direction of the double-pull transmission rod is perpendicular to the rotation axis of the central control transmission gear.

8. The connecting rod driven electric release door lock inner opening double pull unlocking mechanism according to claim 1, characterized in that: The rotation angle range of the inner-opening transition rod is 23° to 27°, the rotation angle range of the central control transmission gear is 18° to 22°, and the horizontal sliding path range of the double-pull transmission rod is 6.2 to 6.8 mm.

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