Door lock and vehicle
By designing a door lock structure with multiple child safety interfaces, including rotation and toggle modes, the problem of the single operation interface of traditional child safety locks has been solved, achieving greater convenience and adaptability, and enhancing product competitiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAGNA AUTOMOTIVE PARTS (SUZHOU) CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional child safety locks have a relatively simple operating interface, which cannot meet the needs of different user groups for multiple child safety operation interfaces, resulting in low ease of operation of the lock.
A door lock structure was designed, comprising components such as an upper housing, a lower housing, a release lever, a pawl, an inner release lever, a secondary release lever, and a child safety lever. The child safety locking function is achieved through both rotation and tossing. It provides multiple child safety interfaces, including mechanical and electric child safety structures, to meet the needs of different user groups.
The variety of child health care interface formats has been enriched, the ease of door lock operation has been improved, the needs of different user groups have been met, and the product competitiveness has been greatly enhanced.
Smart Images
Figure CN224326137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door lock technology, and more particularly to door locks and vehicles. Background Technology
[0002] With the rapid development of the automotive industry, vehicle safety and convenience have become key concerns for consumers. Door locks, as crucial safety components in modern automobiles, greatly enhance driving and passenger convenience by centrally controlling the locking and unlocking of all doors. However, while pursuing convenience, vehicle safety, especially the safety of child passengers, cannot be overlooked.
[0003] Child safety locks are active safety devices designed to ensure the safety of children traveling in vehicles, preventing the danger caused by children accidentally opening the doors from inside the vehicle while it is in motion. However, traditional child safety locks typically use a manual lever or knob to disconnect the inner lever from the pawl, preventing the operation of the inner lever from being transmitted to the pawl and thus achieving the locking function of the child safety lock. However, this method suffers from a limited range of child safety interfaces, failing to meet the needs of different user groups for diverse child safety operation interfaces, resulting in low ease of operation. Utility Model Content
[0004] The purpose of this utility model is to provide a door lock and vehicle that can meet the needs of different user groups for multiple child safety operation interfaces and improve the convenience of door lock operation.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] Door locks, including:
[0007] The upper shell, lower shell, and side shell are detachably connected, and the side shell is provided with a first sliding groove;
[0008] A release rod, which is rotatably mounted on the lower housing;
[0009] A pawl is rotatably mounted on the lower housing. The pawl is used to control the locking element to be selectively in a locked state (locking the door to the door frame) or an unlocked state (unlocking the door to the door frame). The release lever can be selectively connected to the pawl to make the locking element in an unlocked state or disconnected to make the locking element in a locked state.
[0010] An inner release rod is rotatably connected to the upper housing. The inner release rod can be selectively disengaged from or engaged with the release rod to make the release rod connected to the pawl drive.
[0011] A secondary release rod is rotatably mounted on the upper housing. The secondary release rod is provided with a second sliding groove. The secondary release rod can selectively drively connect with the inner release rod to engage with the release rod, or disengage to separate the inner release rod from the release rod.
[0012] A child safety bar, one end of which is rotatably connected to a first rotating shaft and the other end of which is rotatably connected to a second rotating shaft. The second rotating shaft is rotatably disposed in a second sliding groove. The child safety bar has an unlocking position that drives the auxiliary release rod and the inner release rod to be connected, and an locking position that separates the auxiliary release rod from the inner release rod.
[0013] A first operating component, one end of which is rotatably connected to the first rotating shaft, and the other end of which is rotatably connected to the lower housing;
[0014] The second operating component is fixedly connected to the child safety bar and is slidably disposed in the first slide groove, extending out of the first slide groove away from the first rotating shaft along the groove depth direction; either the first operating component or the second operating component can push the child safety bar to switch between the locked position and the unlocked position.
[0015] Optionally, the door lock further includes:
[0016] A first transmission rod is movably mounted on the lower housing. The lower housing is provided with a third sliding groove. The first rotating shaft is rotatably disposed in the third sliding groove. The third sliding groove and the second sliding groove extend in the same direction.
[0017] The third operating component has one end rotatably connected to the lower housing, and the other end rotatably connected to one end of the first transmission rod, the other end of which is rotatably connected to the first rotating shaft.
[0018] Optionally, the first transmission rod is provided with a fourth sliding groove, the groove depth direction of the fourth sliding groove is the same as that of the third sliding groove, one end of the child safety rod passes through the fourth sliding groove and the third sliding groove in sequence along the groove depth direction of the fourth sliding groove via the first rotating shaft, and the extension direction of the fourth sliding groove and the extension direction of the third sliding groove are set at an angle.
[0019] Optionally, the door lock further includes:
[0020] A first drive motor is mounted on the lower housing;
[0021] The first worm gear is fixedly connected to the output end of the first drive motor;
[0022] A first worm gear is rotatably mounted on the lower housing and meshes with the first worm.
[0023] The second transmission rod is movably mounted on the lower housing, and one end of the second transmission rod is rotatably connected to the first rotating shaft;
[0024] A transmission link, one end of which is rotatably connected to the first worm gear, and the other end of which is rotatably connected to the other end of the second transmission rod.
[0025] Optionally, the door lock further includes:
[0026] A locking coupling rod is provided, one end of which is rotatably disposed within a groove of a release rod. An inner release rod, via a transmission unit, can push the locking coupling rod from a first working state to a second working state. One end of the locking coupling rod can selectively engage with a pawl to unlock the locking element, or disengage to lock the locking element. When the locking coupling rod is in the first working state, the pawl is disengaged from the locking coupling rod. When the locking coupling rod is in the second working state, the pawl engages with the locking coupling rod, and the inner release rod can rotate along a first circumferential direction to engage with the release rod, causing the release rod to rotate and drive the locking coupling rod to rotate the pawl. The first circumferential direction is the direction in which the release rod rotates around its own rotation axis to cause the locking coupling rod to drive the pawl to rotate.
[0027] Optionally, the door lock further includes:
[0028] An external release rod is pivotally connected to the release rod. When the locking coupling rod is in the second working state, the external release rod can abut against the release rod in the first circumferential direction, causing the release rod to rotate and pushing the locking coupling rod to drive the pawl to rotate.
[0029] Optionally, the door lock further includes:
[0030] An outward-opening release rod is rotatably connected to the lower housing. When the locking coupling rod is in the second working state, the outward-opening release rod can abut against the release rod along the first circumferential direction.
[0031] A cable support bracket, which can be selectively installed on the upper housing or the lower housing, the cable support bracket having a first channel with an upward opening and a second channel with a downward opening;
[0032] An external pull cable, one end of which is detachably connected to the outward release rod, and the other end of which is selectively threaded through the first channel or the second channel and then detachably connected to the outer door handle.
[0033] Optionally, the lower housing is provided with a connecting post, the upper housing and the lower housing are connected through the connecting post, and the outward release rod is rotatably connected to the connecting post.
[0034] Optionally, the door lock further includes:
[0035] A second drive motor is mounted on the lower housing;
[0036] The second worm gear is fixedly connected to the output end of the second drive motor;
[0037] The second worm gear is rotatably mounted on the lower housing and meshes with the second worm. The locking coupling rod is slidably engaged with the second worm gear so that the locking coupling rod can switch between the first working state and the second working state.
[0038] A vehicle, including a door frame, a door movably mounted on the door frame, and a door lock for locking or unlocking the door and the door frame.
[0039] The beneficial effects of this utility model are:
[0040] The door lock and vehicle provided by this utility model, when the door lock needs to implement the child safety locking function, can be activated by rotating the first operating member in the forward direction. During the rotation, the first operating member drives the child safety lever to rotate via the first rotating shaft, causing the other end of the child safety lever to slide within the second sliding groove via the second rotating shaft. This allows the child safety lever to slide from the unlocked position to the locked position along the extension direction of the second sliding groove. Alternatively, the second operating member can be moved in the forward direction along the extension direction of the first sliding groove, causing the second operating member to slide within the first sliding groove. Since the second operating member is fixedly connected to the child safety lever, the second operating member drives the child safety lever along the... The first slide rail moves in its extending direction, while the other end of the child safety lever slides in the second slide rail via the second pivot. The child safety lever can slide from the unlocked position to the locked position. During this process, the auxiliary release lever separates from the inner release lever, causing the inner release lever to separate from the release lever. The inner release lever cannot apply force to the release lever, and the transmission between the inner release lever and the release lever is cut off. At this time, the inner release lever is in a malfunctioning state, causing the inner release lever to be unable to transmit power to the release lever. Operating the inner release lever cannot transmit power to the pawl through the release lever, meaning that the child cannot open the car door from inside the car.
[0041] When the child safety lock function needs to be released, the first operating member is rotated in the opposite direction. During this rotation, the first operating member drives the child safety lever to rotate via the first pivot, causing the other end of the child safety lever to slide within the second groove via the second pivot. This allows the child safety lever to slide from the locked position to the unlocked position along the extension direction of the second groove. Alternatively, the second operating member can be moved in the opposite direction along the extension direction of the first groove. As the second operating member slides within the first groove, it drives the child safety lever to move along the extension direction of the first groove. Simultaneously, the other end of the child safety lever slides within the second groove via the second pivot, allowing the child safety lever to slide from the locked position to the unlocked position. During this process, the secondary release lever and the inner release lever are connected, allowing the inner release lever to engage with the release lever. At this time, the inner release lever can transmit power to the release lever, which in turn connects with the pawl. Operating the inner release lever allows power to be transmitted to the pawl via the release lever. The pawl can then control the locking mechanism to unlock the door from the door frame, meaning that a child can open the door from inside the vehicle.
[0042] By enabling the child safety lock function of the door lock to be activated through both rotation and toggle, the variety of child safety interface options is enriched, which can meet the needs of different user groups for convenient door lock operation and greatly enhance the product's competitiveness. Attached Figure Description
[0043] Figure 1 This is a schematic diagram of the door lock structure provided by an embodiment of the present invention;
[0044] Figure 2 This is a schematic diagram of the first mechanical child protection structure provided in this embodiment of the utility model;
[0045] Figure 3 This is a schematic diagram of the second mechanical child protection structure provided in this embodiment of the present invention;
[0046] Figure 4 This is a schematic diagram of the third mechanical child protection structure provided in this embodiment of the utility model;
[0047] Figure 5 This is a schematic diagram of the electric child protection structure provided in this embodiment of the utility model;
[0048] Figure 6 This is a schematic diagram of the double-pull internal release structure provided in this embodiment of the utility model;
[0049] Figure 7 This is a schematic diagram of the external release structure and the electric unlocking / locking provided in the embodiment of this utility model;
[0050] Figure 8 This is an overall outline diagram of the door lock structure provided in the embodiment of this utility model.
[0051] In the diagram: 1. Upper housing; 2. Lower housing; 3. Side housing; 4. Release rod; 5. Locking coupling rod; 6. Inner release rod; 7. Secondary release rod; 8. Child safety lever; 91. First operating component; 92. Second operating component; 93. Third operating component; 10. First transmission rod; 11. First drive motor; 12. First worm gear; 13. First worm wheel; 14. Second transmission rod; 15. Transmission connecting rod; 16. Outer release rod; 17. Outward opening release rod; 18. Pull cable bracket; 19. Connecting column; 20. Second drive motor; 21. Second worm gear; 22. Second worm wheel. Detailed Implementation
[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0055] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0056] like Figure 1-8 As shown, an embodiment of this utility model provides a door lock, including an upper housing 1, a lower housing 2, a side housing 3, a release rod 4, a pawl, an inner release rod 6, a secondary release rod 7, a safety lever 8, a first operating member 91, and a second operating member 92. The upper housing 1, lower housing 2, and side housing 3 are detachably connected. The side housing 3 is provided with a first sliding groove. The release rod 4 is rotatably mounted on the lower housing 2, and the pawl is rotatably mounted on the lower housing 2. The pawl is used to control the locking member to selectively be in a locked state (locking the door to the door frame) or an unlocked state (unlocking the door to the door frame). The release rod 4 can selectively engage with the pawl to make the locking member in an unlocked state, or disengage to make the locking member in a locked state. The inner release rod 6 is rotatably connected to the upper housing 1. The inner release rod 6 can selectively disengage from or engage with the release rod 4 to make the release rod 4 engage with the pawl. The secondary release rod 7 is rotatably mounted on the upper housing 1. The lever 7 is provided with a second sliding groove. The auxiliary release lever 7 can selectively drive the inner release lever 6 to engage with the release lever 4, or disengage to separate the inner release lever 6 from the release lever 4. One end of the child safety lever 8 is rotatably connected to a first rotating shaft, and the other end is rotatably connected to a second rotating shaft. The second rotating shaft is rotatably disposed in the second sliding groove. The child safety lever 8 has an unlocked position that drives the auxiliary release lever 7 to engage with the inner release lever 6, and an locked position that separates the auxiliary release lever 7 from the inner release lever 6. One end of the first operating member 91 is rotatably connected to the first rotating shaft, and the other end is rotatably connected to the lower housing 2. The second operating member 92 is fixedly connected to the child safety lever 8. The second operating member 92 is slidably disposed in the first sliding groove and extends out of the first sliding groove away from the first rotating shaft along the groove depth direction. Either the first operating member 91 or the second operating member 92 can push the child safety lever 8 to switch between the locked and unlocked positions.
[0057] To protect the safety of rear-seat child passengers and prevent children from accidentally touching the door handle and opening the door, resulting in a safety accident, door locks usually have a child safety lock function. When the child safety lock is engaged, the door can only be opened from the outside using the outside handle.
[0058] like Figure 2 , 3As shown, when the door lock needs to activate the child safety locking function, by rotating the first operating member 91 in the forward direction, the first operating member 91 drives the child safety lever 8 to rotate via the first rotating shaft, causing the other end of the child safety lever 8 to slide within the second sliding groove via the second rotating shaft. This allows the child safety lever 8 to slide from the unlocked position to the locked position along the extension direction of the second sliding groove. Alternatively, the second operating member 92 can be moved in the forward direction along the extension direction of the first sliding groove. The second operating member 92 slides within the first sliding groove. Since the second operating member 92 is fixedly connected to the child safety lever 8, the second operating member 92 drives the child safety lever 8 along the first sliding groove. As the extension direction moves, the other end of the child safety lever 8 slides in the second groove via the second pivot. The child safety lever 8 can slide from the unlocked position to the locked position. During this process, the auxiliary release lever 7 separates from the inner release lever 6, causing the inner release lever 6 to separate from the release lever 4. The inner release lever 6 cannot apply force to the release lever 4, and the transmission between the inner release lever 6 and the release lever 4 is cut off. At this time, the inner release lever 6 is in a malfunctioning state, which means that the inner release lever 6 cannot transmit power to the release lever 4. Operating the inner release lever 6 cannot transmit power to the pawl through the release lever 4, meaning that the child cannot open the car door from inside the car.
[0059] When it is necessary to deactivate the child safety lock function, the first operating member 91 is rotated in the reverse direction. During the rotation, the first operating member 91 drives the child safety lever 8 to rotate via the first rotating shaft, causing the other end of the child safety lever 8 to slide within the second sliding groove via the second rotating shaft. This allows the child safety lever 8 to slide from the locked position to the unlocked position along the extension direction of the second sliding groove. Alternatively, the second operating member 92 can be moved in the reverse direction along the extension direction of the first sliding groove. As the second operating member 92 slides within the first sliding groove, it drives the child safety lever 8 to move along the extension direction of the first sliding groove. Meanwhile, the other end of the child safety lever 8 slides in the second groove via the second pivot. The child safety lever 8 can slide from the locked position to the unlocked position. During this process, the auxiliary release lever 7 and the inner release lever 6 are connected by a transmission, so that the inner release lever 6 can engage with the release lever 4. At this time, the inner release lever 6 can transmit power to the release lever 4, which in turn makes the release lever 4 connected to the pawl. By operating the inner release lever 6, the power can be transmitted to the pawl through the release lever 4. The pawl can control the locking element to unlock the car door from the door frame, that is, the child can open the car door from inside the car.
[0060] By enabling the child safety lock function of the door lock to be activated through both rotation and toggle, the variety of child safety interface options is enriched, which can meet the needs of different user groups for convenient door lock operation and greatly enhance the product's competitiveness.
[0061] like Figure 2 As shown, the first operating component 91 is a knob-type structure. Specifically, the first operating component 91 has a slot for inserting a key. By inserting the key into the slot and turning the key, the child safety lever 8 can be moved, thereby realizing the mechanical child safety function. Figure 3As shown, the second operating element 92 is a toggle switch.
[0062] Furthermore, the door lock also includes a first transmission rod 10 and a third operating member 93. The first transmission rod 10 is movably mounted on the lower housing 2. The lower housing 2 is provided with a third sliding groove. The first rotating shaft is rotatably disposed in the third sliding groove. The third sliding groove and the second sliding groove extend in the same direction. One end of the third operating member 93 is rotatably connected to the lower housing 2, and the other end of the third operating member 93 is rotatably connected to one end of the first transmission rod 10. The other end of the first transmission rod 10 is rotatably connected to the first rotating shaft.
[0063] like Figure 4 As shown, by rotating the third operating member 93 in the forward direction, the third operating member 93 drives the first transmission rod 10 to move during the rotation. The first transmission rod 10 drives the first rotating shaft to slide in the third slide groove, so that one end of the child safety lever 8 connected to the first rotating shaft slides in the third slide groove along the extension direction of the third slide groove. One end of the child safety lever 8 connected to the second rotating shaft slides in the second slide groove along the extension direction of the second slide groove, thereby enabling the child safety lever 8 to slide from the unlocked position to the locked position. During this process, the auxiliary release rod 7 separates from the inner release rod 6, so that the inner release rod 6 separates from the release rod 4. The transmission between the inner release rod 6 and the release rod 4 is cut off, so that the inner release rod 6 cannot transmit power to the release rod 4. Operating the inner release rod 6 cannot transmit power to the pawl through the release rod 4, so the child cannot open the car door from inside the car.
[0064] By rotating the third operating member 93 in the reverse direction, the third operating member 93 drives the first transmission rod 10 to move. The first transmission rod 10 drives the first rotating shaft to slide in the third slide groove, so that one end of the child safety lever 8 connected to the first rotating shaft slides in the third slide groove along the extension direction of the third slide groove. One end of the child safety lever 8 connected to the second rotating shaft slides in the second slide groove along the extension direction of the second slide groove. This allows the child safety lever 8 to slide from the locked position to the unlocked position. During this process, the auxiliary release rod 7 and the inner release rod 6 are connected by a transmission, so that the inner release rod 6 can engage with the release rod 4. The inner release rod 6 can transmit power to the release rod 4 so that the pawl controls the locking member to unlock the door from the door frame, thereby allowing the door to be opened from inside the vehicle.
[0065] By adopting various forms of child health care interfaces, we can meet the application needs of different scenarios and the diverse needs of different user groups for child health care interfaces, improve the ease of door lock operation and product adaptability, and greatly enhance product competitiveness.
[0066] Furthermore, the first transmission rod 10 is provided with a fourth sliding groove, the depth direction of which is the same as that of the third sliding groove. One end of the child safety rod 8 passes through the fourth and third sliding grooves sequentially along the depth direction of the fourth sliding groove via the first rotating shaft. The extension direction of the fourth sliding groove and the extension direction of the third sliding groove are set at an angle. With this configuration, the first rotating shaft can realize the composite movement of the child safety rod 8 under the combined constraint of the third and fourth sliding grooves, allowing the child safety rod 8 to move according to the design intent.
[0067] Furthermore, such as Figure 5 As shown, the door lock also includes a first drive motor 11, a first worm gear 12, a first worm wheel 13, a second transmission rod 14, and a transmission connecting rod 15. The first drive motor 11 is mounted on the lower housing 2. The first worm gear 12 is fixedly connected to the output end of the first drive motor 11. The first worm wheel 13 is rotatably mounted on the lower housing 2 and meshes with the first worm gear 12. The second transmission rod 14 is movably mounted on the lower housing 2. One end of the second transmission rod 14 is rotatably connected to the first rotating shaft. One end of the transmission connecting rod 15 is rotatably connected to the first worm wheel 13, and the other end is rotatably connected to the first transmission rod 10.
[0068] After the first drive motor 11 receives the electrical signal to lock the child safety lever 8, the first drive motor 11 rotates in the forward direction. The first drive motor 11 drives the first worm gear 12 to rotate, the first worm gear 12 drives the first worm wheel 13 to rotate, the first worm wheel 13 drives the transmission link 15 to move, and the transmission link 15 drives the second transmission rod 14 to move so that the child safety lever 8 slides from the unlocked position to the locked position. During this process, the auxiliary release lever 7 separates from the inner release lever 6, so that the inner release lever 6 separates from the release lever 4. The transmission between the inner release lever 6 and the release lever 4 is cut off, so the inner release lever 6 cannot transmit power to the release lever 4. Operating the inner release lever 6 cannot transmit power to the pawl through the release lever 4, so the child cannot open the car door from inside the car.
[0069] After the first drive motor 11 receives the electrical signal to unlock the child safety bar 8, the first drive motor 11 rotates in the reverse direction. The first drive motor 11 drives the first worm gear 12 to rotate, the first worm gear 12 drives the first worm wheel 13 to rotate, the first worm wheel 13 drives the transmission link 15 to move, and the transmission link 15 drives the second transmission rod 14 to move so that the child safety bar 8 slides from the locked position to the unlocked position. During this process, the auxiliary release rod 7 is connected to the inner release rod 6, so that the inner release rod 6 can engage with the release rod 4. The inner release rod 6 can transmit power to the release rod 4. At this time, the pawl can control the locking element to unlock the door from the door frame, so that the door can be opened from inside the vehicle.
[0070] The door lock provided in this embodiment enriches the forms of child safety protection structures by setting up electric child safety protection structures and various mechanical child safety protection structures, which can meet the application needs of various scenarios and meet the needs of different user groups for various forms of child safety protection functions. This greatly improves the ease of operation and product adaptability of the door lock, and further enhances the product's competitiveness.
[0071] Optionally, the first worm gear 13 is a worm gear with its own buffer structure.
[0072] Furthermore, the door lock also includes a first detection element and a second detection element. The first detection element is used to detect whether the child safety bar 8 is in the locked position, and the second detection element is used to detect whether the child safety bar 8 is in the unlocked position.
[0073] For example, both the first and second detection elements are microswitches. When the first drive motor 11 rotates in the forward direction, it drives the child safety lever 8 from the unlocked position to the locked position via the first worm gear 12, the first worm wheel 13, the transmission link 15, and the second transmission rod 14. The child safety lever 8 triggers the first detection element, and the first drive motor 11 stops rotating, meaning the child safety lever 8 remains in the locked position. When the first drive motor 11 rotates in the reverse direction, it drives the child safety lever 8 from the locked position to the unlocked position via the first worm gear 12, the first worm wheel 13, the transmission link 15, and the second transmission rod 14. The child safety lever 8 triggers the second detection element, and the first drive motor 11 stops rotating, meaning the child safety lever 8 remains in the unlocked position. It should be noted that microswitches are existing technology and will not be described in detail here.
[0074] Furthermore, such as Figure 6 As shown, the door lock also includes a locking coupling rod 5. One end of the locking coupling rod 5 is rotatably disposed in the groove of the release rod 4. The inner release rod 6 can push the locking coupling rod 5 from a first working state to a second working state through a transmission unit. One end of the locking coupling rod 5 can selectively engage with the pawl to make the locking element in an unlocked state, or disengage to make the locking element in a locked state. When the locking coupling rod 5 is in the first working state, the pawl is disengaged from the locking coupling rod 5. When the locking coupling rod 5 is in the second working state, the pawl is engaged with the locking coupling rod 5, and the inner release rod 6 can rotate along the first circumferential direction to engage with the release rod 4, so that the release rod 4 rotates to push the locking coupling rod 5 to drive the pawl to rotate. The first circumferential direction is the direction in which the release rod 4 rotates around its own rotation axis to make the locking coupling rod 5 push the pawl to rotate.
[0075] When the door is locked, the locking coupling rod 5 is in the first working state, that is, the locking coupling rod 5 is separated from the pawl, and the locking coupling rod 5 cannot transmit power to the pawl. At this time, the locking coupling rod 5 is in a malfunctioning state, which means that the door cannot be opened by pulling either the inner door handle or the outer door handle.
[0076] When the inner handle is pulled for the first time, it rotates the inner release lever 6. The inner release lever 6, through the transmission unit, pushes the locking coupling lever 5 to slide within the groove, allowing it to switch from the first working state to the second working state. At this time, the locking coupling lever 5 engages with the pawl, transmitting power to the pawl, and the locking element is in the unlocked state. Since the inner handle returns to its initial position after being released, pulling the inner handle a second time rotates the inner release lever 6. The inner release lever 6 engages with the release lever 4 along the first circumferential direction, pushing the release lever 4 to rotate together. The rotation of the release lever 4 pushes the locking coupling lever 5 to rotate. Because the locking coupling lever 5 is engaged with the pawl, the locking coupling lever 5 drives the pawl to rotate together, thereby causing the pawl to control the locking element to unlock the door from the door frame. This process is called double-pull inner release opening.
[0077] Furthermore, the release lever 4 is provided with a first actuating part, and the inner release lever 6 can selectively disengage from the first actuating part or engage with it along the first circumferential direction. Specifically, the first actuating part is a flanged structure formed by folding the release lever 4.
[0078] Furthermore, the door lock also includes an external release lever 16, which is pivotally connected to the release lever 4. When the locking coupling lever 5 is in the second working state, the external release lever 16 can abut against the release lever 4 in the first circumferential direction, causing the release lever 4 to rotate and push the locking coupling lever 5 to drive the pawl to rotate.
[0079] like Figure 7 As shown, when the locking coupling rod 5 is in the second working state, the locking coupling rod 5 is engaged with the pawl, enabling power transmission. At this time, by rotating the outer release rod 16, the outer release rod 16 will abut against the release rod 4 and push the release rod 4 to rotate. The release rod 4 drives the locking coupling rod 5 to rotate, and the locking coupling rod 5 drives the pawl to rotate together. Thus, the pawl controls the locking element to unlock the door from the door frame, that is, the door can be opened by pulling the outer door handle from the outside of the vehicle.
[0080] Furthermore, the release lever 4 is provided with a second actuating part, and the outer release lever 16 can selectively separate from the second actuating part or abut against it along the first circumferential direction. Specifically, the second actuating part is a flange structure formed by folding the release lever 4.
[0081] Furthermore, such as Figure 8As shown, the door lock also includes an outward release lever 17, a pull cable bracket 18, and an outward pull cable. The outward release lever 17 is rotatably connected to the lower housing 2. When the locking coupling lever 5 is in the second working state, the outward release lever 17 can abut against the release lever 4 along the first circumferential direction. The pull cable bracket 18 can be selectively installed on the upper housing 1 or the lower housing 2. The pull cable bracket 18 has a first channel with an upward opening and a second channel with a downward opening. One end of the outward pull cable is detachably connected to the outward release lever 17, and the other end is used to selectively pass through the first channel or the second channel and then detachably connect to the outer door handle.
[0082] When the locking coupling rod 5 is in the second working state, pulling the outer door handle drives the outer pull cable, which in turn pulls the outer opening release rod 17 to rotate along the first circumference and abut against the release rod 4. The outer opening release rod 17 drives the release rod 4 to rotate, which in turn drives the locking coupling rod 5 to rotate. The locking coupling rod 5 drives the pawl to rotate together, thereby causing the pawl to control the locking element to unlock the door from the door frame, thus enabling the door to be opened from the outside.
[0083] The pull cable bracket 18 has two oriented channels, allowing for different pull cable routing. Furthermore, the pull cable bracket 18 can be installed on either the upper housing 1 or the lower housing 2 to accommodate diverse pull cable layouts. Depending on the requirements, if the outer door handle is above the outward release lever 17, the pull cable is threaded through the first channel and connected to the handle; if the outer door handle is below the outward release lever 17, the pull cable is threaded through the second channel. Based on the specific position of the outer door handle relative to the outward release lever 17, the pull cable can be routed through either the first or second channel to achieve an upward or downward pull cable layout. This structure enables upward or downward pulling of the pull cable, meeting diverse application requirements, facilitating overall lock layout, and further enhancing product competitiveness.
[0084] The external release rod 16 and the external opening release rod 17 are two forms of external opening release, respectively. Selecting one of the external opening release structures according to actual needs can meet the diverse needs of users and improve product competitiveness.
[0085] Furthermore, the release lever 4 is provided with a third actuating part, and the outward-opening release lever 17 can selectively separate from the third actuating part or abut against it along the first circumferential direction. Specifically, the third actuating part is a flange structure formed by folding the release lever 4.
[0086] Furthermore, the lower housing 2 is provided with a connecting post 19, and the upper housing 1 and the lower housing 2 are connected by the connecting post 19. The outward release rod 17 is rotatably connected to the connecting post 19.
[0087] The upper housing 1 and the lower housing 2 are connected and fixed by the connecting post 19. The connecting post 19 serves as the rotation axis of the outward release rod 17. No new structural components are required, which reduces the number of parts used, optimizes the layout of the entire door lock, and reduces production costs.
[0088] Furthermore, the door lock also includes a second drive motor 20, a second worm gear 21, and a second worm wheel 22. The second drive motor 20 is mounted on the lower housing 2, the second worm gear 21 is fixedly connected to the output end of the second drive motor 20, and the second worm wheel 22 is rotatably mounted on the lower housing 2. The second worm wheel 22 meshes with the second worm gear 21, and the locking coupling rod 5 slides with the second worm wheel 22 so that the locking coupling rod 5 can switch between a first working state and a second working state.
[0089] Continue as Figure 7 As shown, after the second drive motor 20 receives the electrical signal to lock the door, the second drive motor 20 rotates in the forward direction. The second drive motor 20 drives the second worm gear 21 to rotate, the second worm gear 21 drives the second worm wheel 22 to rotate, and the second worm wheel 22 drives the locking coupling rod 5 to switch from the second working state to the first working state. When the locking coupling rod 5 is in the first working state, the locking coupling rod 5 is separated from the pawl, and the release rod 4 cannot transmit power to the pawl through the locking coupling rod 5. At this time, the pawl is in the locked state, which can control the locking element to lock the door and the door frame.
[0090] After the second drive motor 20 receives the electrical signal to unlock the door, the second drive motor 20 rotates in the opposite direction. The second drive motor 20 drives the second worm gear 21 to rotate, and the second worm gear 21 drives the second worm wheel 22 to rotate. The second worm wheel 22 drives the locking coupling rod 5 to switch from the first working state to the second working state. When the locking coupling rod 5 is in the second working state, the locking coupling rod 5 is engaged with the pawl. The release rod 4 can transmit power to the pawl through the locking coupling rod 5. At this time, the pawl is in the unlocked state and can control the locking element to unlock the door from the door frame.
[0091] The door lock is locked and unlocked by using a second drive motor 20, thereby enabling the locking and unlocking of the vehicle door.
[0092] This utility model provides an integrated door lock that integrates a mechanical child safety mechanism, an electric child safety mechanism, a double-pull inner release mechanism, an outer pull release mechanism, and an electric unlocking mechanism. When the locking element is in the locked state, locking the door to the door frame (i.e., the locking coupling rod 5 is in the first working state), the door can be opened by double-pull inner release or by the reverse rotation of the second drive motor 20. When the locking element is in the unlocked state, unlocking the door to the door frame (i.e., the locking coupling rod 5 is in the second working state), the door can be opened by pulling either the inner or outer door handle. At this time, if a child... When the child safety lock is in the locked state, the transmission connection between the secondary release lever 7 and the inner release lever 6 is cut off, the inner release lever 6 is separated from the release lever 4, the inner release lever 6 cannot transmit power to the release lever 4, and cannot drive the release lever 4 to rotate, thus it cannot transmit power to the pawl. In other words, the inner release lever 6 is in a malfunctioning state, and the car door cannot be opened by operating the inner door handle. Since the outer release lever 16 and the outer opening release lever 17 can abut against the release lever 4 along the first circumference and make it rotate, the pawl will be driven to rotate through the locking coupling lever 5. That is, when the child safety lock is in the locked state, the car door can be opened by operating the outer door handle.
[0093] An embodiment of this utility model provides a vehicle, including a door frame, a door movably mounted on the door frame, and the aforementioned door lock, which is used to lock or unlock the door and the door frame.
[0094] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A door lock, characterized in that, include: The upper housing (1), the lower housing (2) and the side housing (3) are detachably connected, and the side housing (3) is provided with a first sliding groove; Release rod (4), which is rotatably mounted on the lower housing (2); The pawl is rotatably mounted on the lower housing (2). The pawl is used to control the locking member to be selectively in a locked state that locks the door to the door frame, or in an unlocked state that unlocks the door to the door frame. The release lever (4) can be selectively connected to the pawl to make the locking member in an unlocked state, or disconnected to make the locking member in a locked state. An inner release rod (6) is rotatably connected to the upper housing (1). The inner release rod (6) can selectively separate from or engage with the release rod (4) to make the release rod (4) connected to the pawl drive. A secondary release rod (7) is rotatably mounted on the upper housing (1). The secondary release rod (7) is provided with a second sliding groove. The secondary release rod (7) can selectively drive and connect with the inner release rod (6) to make the inner release rod (6) engage with the release rod (4), or separate to make the inner release rod (6) separate from the release rod (4). Child safety bar (8), one end of which is rotatably connected to a first rotating shaft and the other end is rotatably connected to a second rotating shaft, the second rotating shaft being rotatably disposed in the second sliding groove, the child safety bar (8) having an unlocked position that drives the auxiliary release rod (7) and the inner release rod (6) to be connected, and a locked position that separates the auxiliary release rod (7) from the inner release rod (6); The first operating component (91) has one end rotatably connected to the first rotating shaft and the other end rotatably connected to the lower housing (2); The second operating member (92) is fixedly connected to the child safety bar (8). The second operating member (92) is slidably disposed in the first slide groove and extends out of the first slide groove in a direction away from the first rotating shaft along the groove depth direction. Either the first operating member (91) or the second operating member (92) can push the child safety bar (8) to switch between the locked position and the unlocked position.
2. The door lock according to claim 1, characterized in that, The door lock also includes: The first transmission rod (10) is movably mounted on the lower housing (2). The lower housing (2) is provided with a third sliding groove. The first rotating shaft is rotatably disposed in the third sliding groove. The third sliding groove and the second sliding groove extend in the same direction. The third operating component (93) is rotatably connected at one end to the lower housing (2) and at the other end to one end of the first transmission rod (10), which is rotatably connected to the first rotating shaft.
3. The door lock according to claim 2, characterized in that, The first transmission rod (10) is provided with a fourth sliding groove. The groove depth direction of the fourth sliding groove is the same as that of the third sliding groove. One end of the child safety rod (8) passes through the fourth sliding groove and the third sliding groove in sequence along the groove depth direction of the fourth sliding groove via the first rotating shaft. The extension direction of the fourth sliding groove and the extension direction of the third sliding groove are set at an angle.
4. The door lock according to claim 1, characterized in that, The door lock also includes: The first drive motor (11) is mounted on the lower housing (2); The first worm gear (12) is fixedly connected to the output end of the first drive motor (11); The first worm gear (13) is rotatably mounted on the lower housing (2) and meshes with the first worm (12); The second transmission rod (14) is movably mounted on the lower housing (2), and one end of the second transmission rod (14) is rotatably connected to the first rotating shaft; A transmission link (15) is rotatably connected at one end to the first worm gear (13) and at the other end to the other end of the second transmission rod (14).
5. The door lock according to claim 1, characterized in that, The door lock also includes: A locking coupling rod (5) is provided, one end of which is rotatably disposed in the groove of the release rod (4). The inner release rod (6) can push the locking coupling rod (5) from a first working state to a second working state through a transmission unit. One end of the locking coupling rod (5) can selectively engage with the pawl to make the locking member in an unlocked state, or disengage to make the locking member in a locked state. When the locking coupling rod (5) is in the first working state, the pawl is disengaged from the locking coupling rod (5). When the locking coupling rod (5) is in the second working state, the pawl engages with the locking coupling rod (5), and the inner release rod (6) can rotate along the first circumferential direction to engage with the release rod (4), so that the release rod (4) rotates to push the locking coupling rod (5) to drive the pawl to rotate. The first circumferential direction is the direction in which the release rod (4) rotates around its own rotation axis to make the locking coupling rod (5) push the pawl to rotate.
6. The door lock according to claim 5, characterized in that, The door lock also includes: An external release rod (16) is pivotally connected to the release rod (4). When the locking coupling rod (5) is in the second working state, the external release rod (16) can abut against the release rod (4) in the first circumferential direction, causing the release rod (4) to rotate and push the locking coupling rod (5) to drive the pawl to rotate.
7. The door lock according to claim 5, characterized in that, The door lock also includes: An outward-opening release rod (17) is rotatably connected to the upper housing (1) or the bracket. When the locking coupling rod (5) is in the second working state, the outward-opening release rod (17) can abut against the release rod (4) along the first circumferential direction. A pull wire bracket (18) is selectively mounted on the upper housing (1) or the lower housing (2), and the pull wire bracket (18) has a first channel with an upward opening and a second channel with a downward opening; An external pull wire, one end of which is detachably connected to the external opening release rod (17), and the other end of which is selectively inserted into the first channel or the second channel and then detachably connected to the external door handle.
8. The door lock according to claim 7, characterized in that, The lower housing (2) is provided with a connecting post (19), and the upper housing (1) and the lower housing (2) are connected by the connecting post (19). The outward release rod (17) is rotatably connected to the connecting post (19).
9. The door lock according to claim 5, characterized in that, The door lock also includes: The second drive motor (20) is mounted on the lower housing (2); The second worm (21) is fixedly connected to the output end of the second drive motor (20); The second worm gear (22) is rotatably mounted on the lower housing (2). The second worm gear (22) meshes with the second worm (21). The locking coupling rod (5) slides with the second worm gear (22) so that the locking coupling rod (5) can switch between the first working state and the second working state.
10. A vehicle, characterized in that, The device includes a door frame, a door movably mounted on the door frame, and a door lock as described in any one of claims 1-9, the door lock being used to lock or unlock the door and the door frame.