An inside opening double pull unlocking mechanism of an electric release door lock driven by a transition piece

Abstract

The utility model relates to an electric release door lock inner opening double-pull unlocking mechanism through transition piece drive relates to the field of automobile door lock, and the unlocking mode is as follows: when the door lock is in the armed state, first pull the inner opening pull rod rotates around the hole, sequentially drive the inner opening double-pull transition piece, the central control transmission transition rod, the central control transmission rod, the central control transmission gear, the double-pull transmission rod, the double-pull release transition rod and the inner opening transition rod movement, thereby realize the inner opening transition rod place and mechanical solution central control insurance of armed state, the second pull inner opening pull rod can directly rotate the electric opening release rod through the inner opening transition rod, the electric opening release rod rotates and promotes the outer opening release rod, and the outer opening release rod rotates and releases the ratchet pawl through the ratchet pawl release rod, and completes the unlocking. The utility model can realize the same inner opening double-pull unlocking with mechanical lock, and solves the technical defects that the existing electric opening lock system cannot mechanically remove the central control lock under the power-off working condition.

Description

Technical Field

[0001] This utility model relates to the field of automotive door locks, and in particular to an electric release door lock inner double-pull unlocking mechanism that is driven by a transition piece. Background Technology

[0002] Currently, most mechanical central locking systems in the industry use a double-pull unlocking mechanism (inward pull). Pulling the inward pull once mechanically releases the central locking, and pulling it a second time unlocks the door. Electric unlocking systems, on the other hand, typically only require a single pull of the inward pull to unlock. In existing technology, the central locking system can only be released electrically. This leads to a problem: in a collision scenario, if the central locking system fails to unlock electrically and the vehicle has lost power, and there is no other way to unlock the central locking system, the door cannot be opened using the outward handle. This presents a technical deficiency where the door cannot be opened mechanically in an emergency.

[0003] Therefore, it is necessary to provide a new type of electric release door lock double pull lock mechanism that is driven by a transition piece, which can achieve the same inward double pull unlocking as mechanical locks, and solves the technical defect of existing electric unlocking systems that cannot mechanically release the central lock under power failure conditions. Utility Model Content

[0004] The purpose of this utility model is to provide a novel electric release door lock double pull lock mechanism that is driven by a transition piece. It can achieve the same inward double pull unlocking as a mechanical lock, and solves the technical defect of existing electric unlocking systems that cannot mechanically release the central lock under power failure conditions.

[0005] To address the problems existing in the prior art, this utility model provides an inward double-pull unlocking mechanism for an electrically released door lock, driven by a transition member, comprising:

[0006] An inwardly opening tie rod that rotates around an inwardly opening tie rod mounting hole has an inwardly opening cam surface;

[0007] An inwardly opening double-pull transition piece that rotates around a housing mounting column has a second mounting hole. When the inwardly opening pull rod rotates, it contacts the inwardly opening double-pull transition piece through the inwardly opening cam surface, causing the inwardly opening double-pull transition piece to rotate.

[0008] The central control transmission transition rod is equipped with a central control transmission rod mounting limit post and a central control transmission transition rod limit post;

[0009] The central control transmission rod has a central control transmission rod mounting post at its first end that is rotatably mounted in the second mounting hole, and a central control transition mounting groove at its first end. The central control transmission rod mounting limit post is installed in the central control transition mounting groove, and the central control transmission rod has a U-shaped groove at its second end.

[0010] The central control transmission gear has a central control transmission column perpendicular to the gear surface on its gear surface;

[0011] The double-pull transmission rod has a double-pull release transition rod mounting hole and a central control transmission gear mounting groove at both ends. The central control transmission column passes through the U-shaped groove and the central control transmission gear mounting groove in sequence to achieve the linkage of the three.

[0012] A double-pull release transition rod that rotates around a double-pull release mounting hole is provided with a limit arm and a double-pull transmission rod mounting post, wherein the double-pull transmission rod mounting post is rotatably disposed within the double-pull release transition rod mounting hole;

[0013] An inwardly opening transition rod that rotates around a first pivot has a contact post and a transmission post. When the contact post contacts the limiting arm, it moves with the limiting arm. When the limiting arm rotates to a fixed position, the contact post disengages from the limiting arm and is reset by a reset mechanism. After reset, the transmission post is limited by the push arm of the electrically released rod.

[0014] Wherein, the contact post is limited by the limiting arm and is in the upper safety state; the contact post is released from the limiting arm and the transmission post is limited by the push arm and is in the lower safety state.

[0015] When the safety is released, the inner opening lever rotates, which in turn drives the electric release lever to rotate via the inner opening transition lever. The electric release lever then pushes the outer opening release lever, which in turn pushes the pawl release lever. The pawl and the pawl release lever work together, causing the pawl to rotate and complete the release, thus unlocking the device.

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

[0017] Optionally, in the electrically released door lock inner double-pull unlocking mechanism driven by the transition member, the reset mechanism is a torsion spring.

[0018] Optionally, in the electrically released door lock inner double-pull unlocking mechanism driven by the transition member, the outer release rod is also provided with an electrically open contact surface and a pawl contact surface.

[0019] Optionally, in the electrically released door lock inner double-pull unlocking mechanism driven by the transition member, the electrically released rod is provided with an electrically released cam surface, and the electrically released cam surface contacts the electrically released contact surface.

[0020] Optionally, in the electrically released door lock inner double-pull unlocking mechanism driven by the transition member, the pawl release rod is provided with an outer opening contact surface, and the outer opening contact surface contacts the pawl contact surface.

[0021] Optionally, in the electrically released door lock inward double-pull unlocking mechanism driven by the transition member, the inward double-pull transition member is further provided with a first mounting hole, and the inward double-pull transition member is rotatably mounted on the housing mounting post through the first mounting hole.

[0022] Optionally, in the electrically released door lock inward double-pull unlocking mechanism driven by the transition member, the rotation angle range of the inward 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.

[0023] The electric release door lock inward double-pull unlocking mechanism with transmission via a transition piece provided in this utility model has the following beneficial effects:

[0024] 1. Emergency Escape Guarantee: This utility model, through the setting of a two-stage mechanical transmission structure, enables the complete action of unlocking the central control and releasing the latch by pulling the inner handle twice in succession without relying on electric drive. This ensures that the vehicle can still mechanically unlock the door in emergency situations such as collisions and power outages, thereby improving the success rate of rescue.

[0025] 2. Simplified and reliable structure: The parts are assembled using mechanical structures such as hole-shaft fit, sliding groove limit and gear transmission, without relying on electronic components, resulting in low manufacturing cost and failure rate;

[0026] 3. Operational compatibility: The double-pull operation logic is consistent with that of traditional mechanical locks, and users do not need to adapt to the new process;

[0027] 4. Modular integration: It can directly replace the existing electric unlocking internal opening mechanism without changing the door layout, and has strong adaptability. Attached Figure Description

[0028] Figure 1 A diagram showing the safety status of the internal double-pull unlocking mechanism provided in this embodiment of the utility model;

[0029] Figure 2 This is a diagram illustrating the internal opening and single pull unlocking states of the internal opening double pull unlocking mechanism provided in this embodiment of the utility model.

[0030] Figure 3 This is a diagram showing the internal opening and double-pull unlocking state of the internal opening and double-pull unlocking mechanism provided in this embodiment of the utility model.

[0031] Figure 4 This is a diagram showing the unlocking and reset state of the internal double-pull unlocking mechanism provided in this embodiment of the utility model.

[0032] Figure 5-7 A partial assembly diagram of the internal double-pull unlocking mechanism provided in an embodiment of this utility model;

[0033] Figure 8 This is a schematic diagram of the central control release mechanism of the internal double-pull unlocking mechanism provided in an embodiment of this utility model;

[0034] Figure 9 This is a schematic diagram of the upper central control of the internal double-pull unlocking mechanism provided in an embodiment of the present utility model;

[0035] Figure 10 A schematic diagram of the pawl release transmission mechanism provided in an embodiment of this utility model;

[0036] Figure 11-20 This is a partial schematic diagram of the internal double-pull unlocking mechanism provided in an embodiment of the present utility model.

[0037] Among them, 100-inward opening pull rod; 101-guide groove; 102-coupling groove; 103-inward opening cam surface; 104-inward opening pull rod mounting hole; 200-inward opening double pull transition piece; 201-first mounting hole; 202-second mounting hole; 203-limiting step; 300-central control transmission transition rod; 301-central control transmission rod mounting limit post; 302-central control transmission transition rod limit post; 400-central control transmission rod; 401-U-shaped groove; 402-central control transition mounting slide groove; 403-central control transmission rod mounting post; 500-central control transmission gear; 501-central control transmission post; 600-double pull transmission rod; 601-double pull release transition rod mounting hole; 602-central control transmission gear mounting slide groove; 700-double pull release Transition rod; 701-Limit arm; 702-Inward opening double-pull transition rod mounting groove; 703-Double-pull transmission rod mounting post; 704-Double-pull release mounting hole; 800-Inward opening transition rod; 801-Contact post; 802-Transmission post; 803-First fixed end mounting post of reset mechanism; 900-Electrically opened release rod; 901-Second movable end mounting post of reset mechanism; 902-Push arm; 903-Electrically opened cam surface; 1000-Outward opening release rod; 1001-Electrically opened contact surface; 1002-Center 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; 1300-Pawl. Detailed Implementation

[0038] The specific embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0039] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] Currently, most mechanical central locking systems in the industry use a double-pull unlocking mechanism (inward pull). Pulling the inward pull once mechanically releases the central locking, and pulling it a second time unlocks the door. Electric unlocking systems, on the other hand, typically only require a single pull of the inward pull to unlock. In existing technology, the central locking system can only be released electrically. This leads to a problem: in a collision scenario, if the central locking system fails to unlock electrically and the vehicle has lost power, and there is no other way to unlock the central locking system, the door cannot be opened using the outward handle. This presents a technical deficiency where the door cannot be opened mechanically in an emergency.

[0041] To address the problems existing in the prior art, this utility model provides a novel electric release door lock double-pull unlocking mechanism via a transition piece. This mechanism enables inward double-pull unlocking, similar to mechanical locks, and solves the technical defect of existing electric unlocking systems that cannot mechanically release the central locking mechanism under power failure conditions. The electric release door lock inward double-pull unlocking mechanism includes:

[0042] refer to Figure 11 An inner-opening tie rod 100 that rotates around an inner-opening tie rod mounting hole 104 is provided with an inner-opening cam surface 103.

[0043] Specifically, the inner opening tie rod 100 is mounted on the second pivot P2 through the inner opening tie rod mounting hole 104 and rotates along it. The inner opening tie rod 100 is also provided with a guide groove 101 and a coupling groove 102.

[0044] The inwardly opening double-pull transition piece 200 rotates around the housing mounting post, reference. Figure 12 It is provided with a second mounting hole 202 and a limiting step 203. When the inner opening pull rod 100 rotates, it pushes the inner opening double pull transition piece 200 to rotate through the contact between the inner opening cam surface 103 and the limiting step 203.

[0045] Specifically, the inwardly opening double-pull transition member 200 is also provided with a first mounting hole 201, and the inwardly opening double-pull transition member 200 is rotatably mounted on the housing mounting post through the first mounting hole 201.

[0046] Central transmission transition rod 300, reference Figure 13 It is equipped with a central control transmission rod installation limit post 301 and a central control transmission transition rod limit post 302;

[0047] Central control transmission rod 400, reference Figure 14 The central control transmission rod 400 has a central control transmission rod mounting post 403 rotatably mounted in the second mounting hole 202 at its first end, and a central control transition mounting groove 402 at its first end. The central control transmission rod mounting limiting post 301 is installed in the central control transition mounting groove 402, and the central control transmission rod 400 has a U-shaped groove 401 at its second end.

[0048] Specifically, the second mounting hole 202 and the central control transmission rod mounting column 403 cooperate to form a rotating pair. The rotation of the inner opening double pull transition piece 200 drives the central control transmission rod 400 to move horizontally, while the central control transition mounting groove 402 drives the central control transmission transition rod 300 to move.

[0049] Central transmission gear 500, reference Figure 15 Its gear surface is provided with a central control transmission column 501 perpendicular to the gear surface;

[0050] Double-pull transmission rod 600, reference Figure 16 The two ends of the device are respectively provided with a double-pull release transition rod mounting hole 601 and a central control transmission gear mounting groove 602. The central control transmission column 501 passes through the U-shaped groove 401 and the central control transmission gear mounting groove 602 in sequence, so that the central control transmission rod 400 drives the double-pull transmission rod 600 to move, thereby realizing the linkage of the three.

[0051] Specifically, the U-shaped groove 401 and the central control transmission column 501 cooperate to form a rotating pair, the central control transmission gear mounting groove 602 and the central control transmission column 501 cooperate to form a sliding pair, the horizontal lateral movement of the central control transmission rod 400 drives the central control transmission gear 500 to rotate, the rotation of the central control transmission gear 500 drives the double pull transmission rod 600 to move horizontally, and the displacement of the central control transmission rod 400 is limited by the rotation angle of the central control transmission gear 500;

[0052] Among them, through finite element simulation and 100,000-cycle durability test (according to GB / T 15089-2021 "Road Vehicle Door Locks and Door Retaining Components" and QC / T 627-2013 "Automotive Electric Vehicle Door Lock Devices"), the central locking unlocking efficiency is optimal when the rotation angle range of the central control transmission gear 500 is 18° to 22° and the horizontal sliding path range of the double pull transmission rod 600 is 6.2 to 6.8 mm.

[0053] refer to Figure 17A double-pull release transition rod 700 that rotates around a double-pull release mounting hole 704 is provided with a limit arm 701 and a double-pull transmission rod mounting post 703. The double-pull transmission rod mounting post 703 is rotatably disposed in the double-pull release transition rod mounting hole 601.

[0054] Specifically, the double-pull transmission rod mounting post 703 and the double-pull release transition rod mounting hole 601 cooperate to form a rotating pair. The horizontal lateral movement of the double-pull transmission rod 600 drives the double-pull release transition rod 700 to rotate. The double-pull release transition rod 700 is mounted on the third pivot P3 through the double-pull release mounting hole 704 and rotates along it.

[0055] The double-pull release transition rod 700 is also provided with an inwardly opening double-pull transition rod mounting groove 702.

[0056] refer to Figure 1-7 An inwardly opening transition rod 800, which rotates around a first pivot P1, is provided with a contact post 801 and a transmission post 802. When the contact post 801 contacts the limiting arm 701, it moves with the limiting arm 701. When the limiting arm 701 rotates to a fixed position, the contact post 801 disengages from the limiting arm 701 and is reset by a reset mechanism 1200. After reset, the transmission post 802 is limited by the push arm 902 of the electrically released rod 900. At this time, the transmission post 802 is located in the coupling groove 102.

[0057] Typically, the limiting arm 701 restricts the rotational freedom of the inward-opening transition rod 800 along the first pivot P1. Finite element simulation and 100,000-cycle durability tests (based on GB / T 15089-2021 "Road Vehicle Door Locks and Door Retaining Components" and QC / T 627-2013 "Automotive Electric Vehicle Door Lock Devices") have verified that the limiting stability and unlocking efficiency are optimal when the rotation angle range of the inward-opening transition rod 800 is 23° to 27°.

[0058] The contact post 801 is limited by the limiting arm 701 and is in the locked state; the contact post 801 is released from the limiting arm 701 and the transmission post 802 is limited by the push arm 902 and is in the unlocked state.

[0059] Furthermore, in the electric release door lock inner double-pull unlocking mechanism driven by the transition member, the outer 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 post 302, it is in the upper central control safety state; when the central control transmission transition rod 300 moves and drives the central control transmission transition rod limiting post 302 to contact the central control surface 1002, it is in the unlocked central control safety state.

[0060] When the safety is released, the inner opening lever 100 rotates, which in turn drives the electric release lever 900 to rotate via the inner opening transition lever 800. When the electric release lever 900 rotates, it pushes the outer opening release lever 1000. When the outer opening release lever 1000 rotates, it pushes the pawl release lever 1100. The pawl 1300 is linked with the pawl release lever 1100, and the pawl 1300 is driven to rotate to complete the release, thus completing the unlocked state.

[0061] Furthermore, the outward-opening release lever 1000 is also provided with an electrically open contact surface 1001 and a pawl contact surface 1003, the electrically open release lever 900 is provided with an electrically open cam surface 903, and the pawl release lever 1100 is provided with an outward-opening contact surface 1101. The specific unlocking process is as follows:

[0062] When releasing insurance in the first phase, refer to Figure 1-3 When the inner opening pull rod 100 rotates clockwise for the first time, the inner opening cam surface 103 shifts to the left. This leftward shift pushes the limiting step 203 of the inner opening double pull transition piece 200, causing the inner opening double pull transition piece 200 to rotate counterclockwise. The counterclockwise rotation of the inner opening double pull transition piece 200 drives the central control transmission rod 400 to move horizontally to the right. The central control transmission gear 500 rotates clockwise, and the double pull transmission rod 600 also moves horizontally to the right. The double pull transmission rod 600 drives the double pull release transition rod 700 to rotate clockwise, releasing the constraint of the limiting arm 701 on the contact post 801. The inner opening transition rod 800 is then driven by the reset mechanism 1200 to rotate counterclockwise and enter the coupling state (i.e., the transmission post 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 along the second pivot P2 to reset.

[0063] On the other hand, see Zhongkong Insurance for reference. Figure 1-4 , Figure 8 and Figure 9 When the inner-opening pull rod 100 rotates clockwise for the first time, the inner-opening double-pull transition piece 200 rotates counterclockwise. The counterclockwise rotation of the inner-opening double-pull transition piece 200 causes the central control transmission rod 400 to move horizontally to the right. The central control transmission rod 400 causes the central control transmission transition rod 300 to move to the right, causing the central control transmission transition rod limit post 302 to abut against the central control surface 1002 of the outer-opening release rod 1000, thus completing the release of the central control safety.

[0064] When unlocking in the second phase, refer to Figure 4 and Figure 10 The inner-opening pull rod 100 rotates clockwise for the second time. The inner-opening pull rod 100 directly controls the electric release rod 900 to rotate clockwise along the second pivot P2 via the inner-opening transition rod 800. At this time, the electric release rod 900 (reference) Figure 18 The electrically operated cam surface 903 and the outward-opening release lever 1000 (reference) Figure 19The contact surface 1001 of the electric switch makes contact with the electric switch release rod 900, which in turn pushes the external release rod 1000 to rotate counterclockwise. Simultaneously, the pawl contact surface 1003 of the external release rod 1000 and the pawl release rod 1100 (see reference)... Figure 20 The outer contact surface 1101 contacts the outer release rod 1000, which pushes the pawl release rod 1100 to rotate clockwise through this contact. The pawl release rod 1100 cooperates with the pawl hole shaft, and the pawl 1300 is driven to rotate clockwise to complete the release, release the locking tongue limit, and thus achieve unlocking.

[0065] refer to Figure 5-7 In the electric release door lock inward double-pull unlocking mechanism driven by the transition member, the reset mechanism 1200 is a torsion spring. The pre-tightening rotation center of the reset mechanism 1200 is coaxial with the rotation center of the inward transition rod 800. The torsion spring is sleeved on the inward transition rod 800. The torsion spring includes a first fixed end and a second movable end. The first fixed end is fixedly installed on the first fixed end mounting post 803 of the reset mechanism of the inward transition rod 800. The second movable end is limited to the second movable end mounting post 901 of the reset mechanism of the electric release rod 900.

[0066] In summary, the electric release door lock inward double-pull unlocking mechanism with transmission via a transition piece provided by this utility model has the following beneficial effects:

[0067] 1. Emergency escape guarantee: The purely mechanical double-pull unlocking design allows the central locking system to be mechanically released in the event of a power outage or electrical control failure, thus improving the success rate of rescue.

[0068] 2. Simplified and reliable structure: The parts are assembled using mechanical structures such as hole-shaft fit, sliding groove limit and gear transmission, without relying on electronic components, resulting in low manufacturing cost and failure rate;

[0069] 3. Operational compatibility: The double-pull operation logic is consistent with that of traditional mechanical locks, and users do not need to adapt to the new process;

[0070] 4. Modular integration: It can directly replace the existing electric unlocking internal opening mechanism without changing the door layout, and has strong adaptability.

[0071] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A double-pull unlocking mechanism for an electrically released door lock, characterized by the following features: include: An inwardly opening tie rod that rotates around an inwardly opening tie rod mounting hole has an inwardly opening cam surface; An inwardly opening double-pull transition piece that rotates around a housing mounting column has a second mounting hole. When the inwardly opening pull rod rotates, it contacts the inwardly opening double-pull transition piece through the inwardly opening cam surface, causing the inwardly opening double-pull transition piece to rotate. The central control transmission transition rod is equipped with a central control transmission rod mounting limit post and a central control transmission transition rod limit post; The central control transmission rod has a central control transmission rod mounting post at its first end that is rotatably mounted in the second mounting hole, and a central control transition mounting groove at its first end. The central control transmission rod mounting limit post is installed in the central control transition mounting groove, and the central control transmission rod has a U-shaped groove at its second end. The central control transmission gear has a central control transmission column perpendicular to the gear surface on its gear surface; The double-pull transmission rod has a double-pull release transition rod mounting hole and a central control transmission gear mounting groove at both ends. The central control transmission column passes through the U-shaped groove and the central control transmission gear mounting groove in sequence to achieve the linkage of the three. A double-pull release transition rod that rotates around a double-pull release mounting hole is provided with a limit arm and a double-pull transmission rod mounting post, wherein the double-pull transmission rod mounting post is rotatably disposed within the double-pull release transition rod mounting hole; An inwardly opening transition rod that rotates around a first pivot has a contact post and a transmission post. When the contact post contacts the limiting arm, it moves with the limiting arm. When the limiting arm rotates to a fixed position, the contact post disengages from the limiting arm and is reset by a reset mechanism. After reset, the transmission post is limited by the push arm of the electrically released rod. Wherein, the contact post is limited by the limiting arm and is in the upper safety state; the contact post is released from the limiting arm and the transmission post is limited by the push arm and is in the lower safety state. When the safety is released, the inner opening lever rotates, which in turn drives the electric release lever to rotate via the inner opening transition lever. The electric release lever then pushes the outer opening release lever, which in turn pushes the pawl release lever. The pawl and the pawl release lever work together, causing the pawl to rotate and complete the release, thus unlocking the device.

2. The electrically released door lock inward double-pull unlocking mechanism via a transition member as described in claim 1, characterized in that, The outward release rod is also provided with a central control surface. When the central control surface is disengaged from the limiting post of the central control transmission transition rod, it is in the upper central control safety state; when the central control transmission transition rod moves and causes the limiting post of the central control transmission transition rod to contact the central control surface, it is in the released central control safety state.

3. The electrically released door lock inward double-pull unlocking mechanism via a transition member as described in claim 1, characterized in that, The reset mechanism is a torsion spring.

4. The electric release door lock inward double-pull unlocking mechanism via a transition member as described in claim 1, characterized in that, The outward-opening release rod is also provided with an electrically openable contact surface and a pawl contact surface.

5. The electric release door lock inward double-pull unlocking mechanism via a transition member as described in claim 4, characterized in that, The electrically operated release rod is provided with an electrically operated cam surface, which contacts the electrically operated contact surface.

6. The electrically released door lock inward double-pull unlocking mechanism via a transition member as described in claim 4, characterized in that, The pawl release lever has an outwardly opening contact surface, which contacts the pawl contact surface.

7. The electric release door lock inward double-pull unlocking mechanism via a transition member as described in claim 1, characterized in that, The inwardly opening double-pull transition member is also provided with a first mounting hole, and the inwardly opening double-pull transition member is rotatably mounted on the housing mounting column through the first mounting hole.

8. The electric release door lock inward double-pull unlocking mechanism via a transition member as described in 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.

Images