Car door lock
By introducing an unlocking mechanism and linkage design into the door lock, the problem of traditional door locks being unable to unlock quickly is solved, achieving rapid escape and improved safety in emergency situations, and the structural design is simple and compact.
Patent Information
- Application Number
- CN202422309232.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Traditional car door locks cannot be unlocked quickly after self-locking, resulting in passengers being unable to escape in time in an emergency. The car doors may need to be damaged, causing property damage and delayed rescue.
A car door lock with an unlocking mechanism is designed. The cooperation between the unlocking rod and the lock cylinder realizes the rapid unlocking or locking of the self-locking rod. The linkage design of the connecting plate, the lock tongue shaft and the linkage parts ensures the accuracy and reliability of the unlocking action.
The safety and reliability of the door lock are improved, and passengers or rescuers can quickly open the door to avoid safety hazards. The structural design is simple and compact, reducing the risk of property loss and delayed rescue due to malfunctions.
Smart Images
Figure CN223398525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door locks, in particular to a vehicle door lock. Background Art
[0002] With the development of the automotive industry, vehicle safety has become a key concern for consumers. As a crucial component for ensuring vehicle safety, the performance of door locks directly impacts both the effectiveness of vehicle anti-theft measures and the safety of users' personal and property. Traditional door locks primarily consist of a lock housing and a self-locking lever, which locks and unlocks the door through the action of the lever.
[0003] However, in practice, traditional car door locks have some shortcomings. In particular, if there's no proper unlocking mechanism after the self-locking lever has locked, occupants may be unable to quickly open the door and escape in the event of a malfunction or emergency (such as a child being trapped), posing a significant threat to the lives of those inside. Furthermore, in some cases, if a door locks and can't be opened properly, extreme measures like smashing windows are often necessary to gain entry. This not only causes unnecessary property damage but can also delay rescue efforts in an emergency. Utility Model Content
[0004] In view of the deficiencies in the background technology, the present invention provides a vehicle door lock.
[0005] The technical solution adopted by the utility model is: a vehicle door lock, comprising a lock housing, a self-locking rod and a self-locking linkage member, and also comprising an unlocking mechanism for unlocking or locking the self-locking rod after it is locked;
[0006] The unlocking mechanism includes an unlocking rod connected to a self-locking linkage and a lock core connected to the unlocking rod. The unlocking rod extends outside the lock housing and is connected to the lock core. After the lock core is inserted with an adapter key and rotated, it can drive the self-locking rod through the unlocking rod and the self-locking linkage to complete the unlocking action or the locking action.
[0007] Furthermore, it also includes a connecting plate, one end of which is rotatably connected to one end of the unlocking rod, and the other end is provided with a connecting hole connected to the core shaft of the lock cylinder, an action step is provided in the connecting hole, and a driving step adapted to the above-mentioned action step is provided on the core shaft.
[0008] Furthermore, it also includes an upper lock tongue shaft and a lower lock tongue shaft arranged on the lock housing, an upper connecting plate is provided on one end of the upper lock tongue shaft, and a lower connecting plate is provided on one end of the lower lock tongue shaft, a tension spring is connected between the upper connecting plate and the lower connecting plate, and an unlocking wrench is rotatably connected to the lock housing away from the side of the lower lock tongue shaft, the unlocking wrench has an active step, and the lower connecting plate has a driven step, a rotating plate is rotatably connected between the active step and the driven step, and transmission steps are provided on both sides of the rotating plate to offset the above-mentioned active step and the driven step.
[0009] Furthermore, a self-locking plate is extended from the lower connecting plate, and a linkage plate is provided on one end of the self-locking linkage member. Under the downward pressure of the self-locking rod, the linkage plate can extend under the self-locking plate and press against the self-locking plate to complete self-locking.
[0010] Furthermore, a guide plate is fixed on the lock housing on the side away from the lower lock tongue shaft, and a guide groove is provided on the guide plate for sliding cooperation with the above-mentioned linkage plate.
[0011] Furthermore, an upper lock tongue is provided on the upper lock tongue shaft, a lower lock tongue is provided on the lower lock tongue shaft, a lock opening is provided on one side of the upper lock tongue, and a first convex step and a second convex step that can be engaged with the lock opening are provided on the lower lock tongue.
[0012] The beneficial effects of the utility model are:
[0013] 1. Improved safety: This application provides an additional unlocking mechanism that allows passengers or rescuers to quickly open the car door from the outside, avoiding safety hazards caused by failure to open the door in time.
[0014] 2. Optimized structural design: The overall mechanism design is simple and reasonable. The introduction of the unlocking mechanism does not add too many complex mechanical parts. On the contrary, the functional enhancement is achieved through clever design, and the overall structure is more simple and compact.
[0015] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.
[0016] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the present utility model.
[0018] Figure 2 Schematic diagram of the connection of the connecting piece.
[0019] Figure 3 This is a structural diagram of the utility model from another perspective.
[0020] Figure 1-3 Middle: 1. Lock housing; 2. Self-locking rod; 3. Self-locking linkage; 4. Unlocking rod; 5. Lock cylinder; 6. Connecting plate; 7. Connecting hole; 8. Action step; 9. Driving step; 10. Upper lock tongue shaft; 11. Lower lock tongue shaft; 12. Upper connecting plate; 13. Lower connecting plate; 14. Tension spring; 15. Unlocking wrench; 16. Active step; 17. Driven step; 18. Rotating plate; 19. Transmission step; 20. Self-locking plate; 21. Linkage plate; 22. Guide plate; 23. Guide groove; 24; Upper lock tongue 25; Lower lock tongue 26; Locking port 27; First convex step 28; Second convex step.
[0021] Two first convex steps and a second convex step that are engaged with the lock mouth are provided on the lower lock tongue, which can realize two locking actions and improve its use safety. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0024] The utility model provides a vehicle door lock.
[0025] In this embodiment, referring to Figure 1-3 The door lock comprises a lock housing 1, a self-locking rod 2 and a self-locking linkage 3, and also comprises an unlocking mechanism for unlocking or locking the self-locking rod after it is locked;
[0026] The unlocking mechanism includes an unlocking rod 4 connected to a self-locking linkage and a lock core 5 connected to the unlocking rod. The unlocking rod extends outside the lock housing and is connected to the lock core. After the lock core is inserted with an adapter key and rotated, it can drive the self-locking rod through the unlocking rod and the self-locking linkage to complete the unlocking action or the locking action.
[0027] In the above technical solution, a separate, additional unlocking mechanism is provided to unlock the self-locking lever after it is locked. The self-locking lever can be unlocked or locked simply by inserting the key and rotating the lock cylinder, thus simplifying the user experience and improving the user experience. In an emergency, the unlocking mechanism allows passengers or rescuers to quickly open the door, avoiding the problem of being unable to escape or rescue in time due to the self-locking door, thereby improving user safety.
[0028] Specifically, it also includes a connecting plate 6, one end of which is rotatably connected to one end of the unlocking rod, and the other end is provided with a connecting hole 7 connected to the core shaft of the lock cylinder, an action step 8 is provided in the connecting hole 7, and a driving step 9 adapted to the above-mentioned action step 8 is provided on the core shaft.
[0029] In this embodiment, the interaction between the active step on the connecting plate and the drive step on the lock cylinder shaft ensures accurate transmission of power to the unlocking lever during the lock cylinder's rotation, improving transmission efficiency. The connecting plate design ensures a stable connection between the lock cylinder and the unlocking lever, preventing wear and other factors from affecting the unlocking function even after long-term use, thereby enhancing system reliability. The design of the connecting hole simplifies the assembly process, enabling quick and accurate assembly on the production line, thereby improving production efficiency.
[0030] Specifically, it also includes an upper lock bolt shaft 10 and a lower lock bolt shaft 11 arranged on the lock housing, an upper connecting plate 12 is provided on one end of the upper lock bolt shaft, and a lower connecting plate 13 is provided on one end of the lower lock bolt shaft, a tension spring 14 is connected between the upper connecting plate 12 and the lower connecting plate 13, and an unlocking wrench 15 is rotatably connected to the lock housing away from the side of the lower lock bolt shaft, the unlocking wrench 15 has an active step 16, and the lower connecting plate has a driven step 17, a rotating piece 18 is rotatably connected between the active step and the driven step, and transmission steps 19 are provided on both sides of the rotating piece 18 to offset the above-mentioned active step and driven step.
[0031] In this embodiment, by swinging the unlocking wrench, the rotating piece and the pull ring are linked to drive the upper lock tongue shaft and the lower lock tongue shaft to rotate to achieve manual unlocking.
[0032] Among them, the design of the upper lock tongue shaft and the lower lock tongue shaft, combined with the action of the tension spring, enables the car door lock to respond flexibly when subjected to external unlocking force, which not only ensures stability in the locked state, but also allows smooth operation when unlocking.
[0033] The active step on the unlocking wrench, the passive step on the lower connecting plate, and the rotating piece work together to achieve a coordinated release between multiple components, making the unlocking action more consistent and efficient. The rational arrangement of the various components reduces friction and wear between them, extending the service life of the entire door lock.
[0034] Specifically, the lower connecting plate extends with a self-locking plate 20, and a linkage plate 21 is provided on one end of the self-locking linkage member. Under the downward pressure of the self-locking rod, the linkage plate can extend under the self-locking plate and press against the self-locking plate to complete self-locking.
[0035] In this embodiment, the coordinated design of the self-locking plate and the linkage plate ensures that under the downward pressure of the self-locking rod, the linkage plate can accurately extend under the self-locking plate and press against the self-locking plate, thereby achieving a reliable self-locking function.
[0036] Specifically, a guide plate 22 is fixed on the lock housing at a side away from the lower lock bolt shaft, and a guide groove 23 is provided on the guide plate for sliding cooperation with the linkage plate.
[0037] In this embodiment, the design of the guide plate and guide slot ensures smooth movement of the linkage plate, preventing any jamming or offset, and enabling smoother locking and unlocking. The guide slot provides a precise trajectory for the linkage plate, ensuring accurate positioning of each movement and improving the system's positioning accuracy.
[0038] Specifically, an upper lock tongue 24 is provided on the upper lock tongue shaft, a lower lock tongue 25 is provided on the lower lock tongue shaft, a lock hole 26 is provided on one side of the upper lock tongue 24, and a first convex step 27 and a second convex step 28 that can be engaged with the lock hole are provided on the lower lock tongue 25.
[0039] Two first convex steps and a second convex step that are engaged with the lock mouth are provided on the lower lock tongue, which can realize two locking actions and improve its use safety.
[0040] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.
Claims
1. A vehicle door lock, comprising a lock housing, a self-locking rod and a self-locking linkage, characterized in that: It also includes an unlocking mechanism for unlocking or locking the self-locking rod after it is locked; The unlocking mechanism includes an unlocking rod connected to a self-locking linkage and a lock core connected to the unlocking rod. The unlocking rod extends outside the lock housing and is connected to the lock core. After the lock core is inserted with an adapter key and rotated, it can drive the self-locking rod through the unlocking rod and the self-locking linkage to complete the unlocking action or the locking action.
2. The vehicle door lock according to claim 1, characterized in that: It also includes a connecting plate, one end of which is rotatably connected to one end of the unlocking rod, and the other end is provided with a connecting hole connected to the core shaft of the lock cylinder, an action step is provided in the connecting hole, and a driving step adapted to the above-mentioned action step is provided on the core shaft.
3. The vehicle door lock according to claim 1, characterized in that: The cam is secured to the upper and lower ends of the lock member and is engageable with the lever, and the lever is engaged with the lever, and the engage lever is engaged with the lever, and the engage lever is engaged with the lever.
4. The vehicle door lock according to claim 3, characterized in that: The lower connecting plate is extended with a self-locking plate, and one end of the self-locking linkage is provided with a linkage plate. Under the downward pressure of the self-locking rod, the linkage plate can extend under the self-locking plate and press against the self-locking plate to complete self-locking.
5. The vehicle door lock according to claim 4, characterized in that: A guide plate is fixed on the lock shell at a side away from the lower lock bolt shaft, and a guide groove is provided on the guide plate for sliding cooperation with the linkage plate.
6. The vehicle door lock according to claim 3, characterized in that: An upper lock tongue is provided on the upper lock tongue shaft, a lower lock tongue is provided on the lower lock tongue shaft, a lock opening is provided on one side of the upper lock tongue, and a first convex step and a second convex step that can be engaged with the lock opening are provided on the lower lock tongue.