Front door lock body

Abstract

A front door lock body comprises a lock base plate, an upper cover plate and a lock body; a pawl shaft, a ratchet shaft and an outer opening shaft are arranged at the bottom of the lock base plate; a pawl is arranged between the pawl shaft and the lock base plate; a pawl linkage shaft is arranged on the pawl; a locking torsion spring is also arranged on the pawl shaft; a ratchet spring is arranged on the ratchet shaft; a ratchet is arranged between the ratchet shaft and the lock base plate; an outer opening torsion spring, an inner and outer opening linkage plate and an outer opening rocker arm are arranged in sequence between the outer opening shaft and the lock base plate; a sliding arm is also arranged on the inner and outer opening linkage plate; an outer locking rocker arm, a locking rocker arm cooperating with the sliding arm, a worm gear shaft, a first buffer block, a locking buffer block, a motor and a motor worm are arranged at the bottom of the lock body, and an inner locking rocker arm is connected to the side wall through an inner locking rocker arm shaft; the integrated structure is easy to install and disassemble, and there will be no deviation in the installation position or deformation of parts. It also has high transmission efficiency, good feedback signal stability, diverse functions, good control performance, and high safety and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door locks, and in particular to a HY16 front door lock body with high reliability and diverse functions. Background Art

[0002] With the progress of science and technology, car door locks are becoming more and more mature. The original car door locks can no longer meet people's needs. On the one hand, there are many hidden dangers in the safety performance of old car door locks. On the other hand, the structure is relatively complex and large, which is inconvenient to operate and use, and is prone to various problems. As an important part of the car body, the car door must meet the requirements of people and goods entering and exiting, and have sealing properties to isolate the interior of the car body from the outside world. In addition, the car door is required to be safe and reliable, and the car door will not open automatically when driving or in a collision. It can be opened normally after a collision and has good anti-theft performance. The traditional car front door lock has a complex structure and is generally a split structure. It needs to control the car front door lock body through an external actuator. When the relative installation position of the actuator and the car front door lock body deviates or the parts are deformed, it will cause unstable feedback signals, poor reliability, poor sealing performance, and only have some basic functions, such as external opening function, internal opening function, locking function and child insurance function. Summary of the invention

[0003] The purpose of the present invention is to provide a HY16 front door lock body with high reliability and diverse functions, which solves the above technical problems.

[0004] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the present invention is: a front door lock body, characterized in that:

[0005] It comprises a lock bottom plate; a pawl shaft, a ratchet shaft and an outer opening shaft are arranged at the bottom of the lock bottom plate; a pawl is arranged between the pawl shaft and the lock bottom plate; a pawl linkage shaft is arranged on the pawl; a locking torsion spring is also arranged on the pawl shaft; a ratchet spring is arranged on the ratchet shaft; a ratchet is arranged between the ratchet shaft and the lock bottom plate; an outer opening torsion spring, an inner and outer opening linkage plate and an outer opening rocker arm are arranged in sequence between the outer opening shaft and the lock bottom plate; a sliding arm is also arranged on the inner and outer opening linkage plate;

[0006] It also includes an upper cover plate; a micro switch seat and a first micro switch and a second micro switch connected to the micro switch seat are arranged at the bottom of the upper cover plate, and an inner opening rocker arm and an inner opening torsion spring are connected to the side wall through an inner opening rocker arm shaft and an inner opening retaining spring;

[0007] It also includes a lock body connected between the lock bottom plate and the upper cover plate; the bottom of the lock body is provided with an outer locking rocker arm, a locking rocker arm matched with the sliding arm, a worm gear shaft, a first buffer block connected between the lock body and the lock bottom plate, a locking buffer block matched with the locking rocker arm, a motor, and a motor worm connected to the motor, and an inner locking rocker arm matched with the locking rocker arm and the inner opening rocker arm is connected to the side wall through the inner locking rocker arm shaft; the worm gear shaft is provided with a worm gear meshing with the motor worm, a balancing block arranged in the worm gear, a balancing retaining spring, and a worm gear transmission member matched with the locking rocker arm;

[0008] One end of the ratchet spring abuts against the ratchet, and the other end abuts against the lock body;

[0009] One end of the locking torsion spring abuts against the lock body, and the other end abuts against the locking rocker arm;

[0010] One end of the outward-opening torsion spring abuts against the lock body, and the other end abuts against the sliding arm.

[0011] As a preferred technical solution: the connection between the lock bottom plate and the lock body is riveted.

[0012] As a preferred technical solution: the upper cover plate and the lock body are connected by self-tapping screws.

[0013] As a preferred technical solution: an insulating circuit structure is also provided between the upper cover plate and the lock body.

[0014] The beneficial effects of the present invention are: a front door lock body, compared with the traditional structure: an integrated structure, easy installation and disassembly, no deviation in the installation position or deformation of parts, high transmission efficiency, good feedback signal stability, diverse functions, good control performance, and high safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the present invention after removing the upper cover plate and the insulating circuit structure;

[0017] Figure 3 This is a three-dimensional schematic diagram of the present invention after removing the upper cover plate;

[0018] In the figure: 1. Upper cover, 2. Motor worm, 3. Inner locking rocker arm shaft, 4. Motor, 5. Inner locking rocker arm, 6. Inner opening rocker arm, 7. Inner opening torsion spring, 8. Ratchet spring, 9. Inner opening rocker arm shaft, 10. Ratchet shaft, 11. Ratchet, 12. Locking torsion spring, 13. Ratchet shaft, 14. First buffer block, 15. Outer opening torsion spring, 16. Ratchet, 17. Ratchet linkage shaft, 18. Balance block, 19. Balance spring, 20. Worm Wheel, 21. Worm gear transmission, 22. Worm gear shaft, 23. Locking rocker arm, 24. Locking buffer block, 25. Micro switch seat, 26. Outer opening shaft, 27. First micro switch, 28. Outer opening rocker arm, 29. Second micro switch, 30. Outer locking rocker arm, 31. Sliding arm, 32. Inner opening retaining spring, 33. Self-tapping screw, 34. Inner and outer opening linkage plate, 35. Lock body, 36. Lock bottom plate, 37. Insulated line structure. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings;

[0020] In the attached drawings: a front door lock body, including a lock bottom plate 36; a pawl shaft 13, a ratchet shaft 10 and an outer opening shaft 26 are riveted to the bottom of the lock bottom plate 36; a pawl 16 is arranged between the pawl shaft 13 and the lock bottom plate 36; a pawl linkage shaft 17 is riveted to the pawl 16; a locking torsion spring 12 is also arranged on the pawl shaft 13; a ratchet spring 8 is arranged on the ratchet shaft 10; a ratchet 11 is arranged between the ratchet shaft 10 and the lock bottom plate 36; an outer opening torsion spring 15, an inner and outer opening linkage plate 34 and an outer opening rocker arm 28 are arranged in sequence between the outer opening shaft 26 and the lock bottom plate 36; a sliding arm 31 is also arranged on the inner and outer opening linkage plate 34;

[0021] It also includes an upper cover plate 1; a micro switch seat 25 and a first micro switch 27 and a second micro switch 29 connected to the micro switch seat 25 are arranged at the bottom of the upper cover plate 1, and an inner opening rocker arm 6 and an inner opening torsion spring 7 are connected to the side wall through an inner opening rocker arm shaft 9 and an inner opening clip 32;

[0022] It also includes a lock body 35 connected between the lock bottom plate 36 and the upper cover plate 1; the upper cover plate 1 and the lock body 35 are connected by self-tapping screws 33; an insulating circuit structure 37 is also provided between the upper cover plate 1 and the lock body 35; the bottom of the lock body 35 is provided with an outer locking rocker arm 30, a locking rocker arm 23 cooperating with the sliding arm 31, a worm gear shaft 22, a first buffer block 14 connected between the lock body 35 and the lock bottom plate 36, a locking buffer block 24 cooperating with the locking rocker arm 23, a motor 4, and a motor worm 2 connected to the motor 4, and an inner locking rocker arm 5 cooperating with the locking rocker arm 23 and the inner opening rocker arm 6 is connected to the side wall through the inner locking rocker arm shaft 3; the worm gear shaft 22 is provided with a worm wheel 20 meshing with the motor worm 2, a balancing block 18 arranged in the worm wheel 20, a balancing retaining spring 19 and a worm gear transmission member 21 cooperating with the locking rocker arm 23;

[0023] One end of the ratchet spring 8 abuts against the ratchet 11, and the other end abuts against the lock body 35;

[0024] One end of the locking torsion spring 12 abuts against the lock body 35, and the other end abuts against the locking rocker arm 23;

[0025] One end of the outward-opening torsion spring 15 abuts against the lock body 35 , and the other end abuts against the sliding arm 31 .

[0026] In actual use, it has the following functions:

[0027] 1. Inner opening single pull function:

[0028] When the car door is closed and locked, the outside door handle cannot open the car door; when the inside door handle is pulled to the inside opening rocker arm 6, the inside opening rocker arm 6 drives the inside locking rocker arm 5 and the inside and outside opening linkage plate 34 to rotate, the inside locking rocker arm 5 will first drive the locking rocker arm 23, the locking rocker arm 23 pushes the sliding arm 31 to unlock, the rotation of the inside and outside opening linkage plate 34 will drive the sliding arm 31 to slide, and thus the ratchet linkage shaft 17, and drive the ratchet 16 to rotate to open the car door; this function opens the door once by pulling the inside opening handle, and quickly escapes.

[0029] 2. Panic lock function:

[0030] When the door is closed and locked, the outside door handle cannot open the door; when the passenger holds the outside handle and does not release it, the driver can send an unlocking signal through the unlocking button inside the car or the remote control key, and send the locking signal to the locking motor 4 through the car BCM signal. The motor 4 drives the motor worm 2 to rotate, drives the worm wheel 20 to rotate, rotates the worm gear transmission part 21 to push the locking rocker arm 23, and then pushes the sliding arm 31 to unlock; this function is that when someone pulls the outside door handle or the inside door handle, the locking function can be unlocked or closed.

[0031] 3. Lock transient signal:

[0032] When the driver or passenger unlocks or locks the car, a signal is given to the motor 4 through the car's BCM. The motor 4 drives the motor worm 2 to rotate, which drives the worm wheel 20 to rotate, and rotates the worm gear transmission part 21 to push the locking rocker arm 23. The locking rocker arm 23 will touch the first micro switch 27 to give an unlocking and locking signal; this transient signal gives a signal to the car's BCM whether it is unlocking or locking, so that you can have a more complete understanding of whether it is unlocked or locked.

[0033] 4. Door light signal:

[0034] When the driver or passenger opens or closes the door, the ratchet wheel 11 rotates, thereby pressing the second micro switch 29 to give a door opening or closing signal; this allows the driver or passenger to more fully understand whether the door is open or closed.

[0035] 5. Anti-mislocking:

[0036] When the car door is opened, the ratchet 11 and the pawl 16 will be in the open state, the pawl linkage shaft 17 on the pawl 16 will hook the sliding arm 31, and the sliding arm 31 blocks the rotation of the locking rocker arm 23, so that the car door cannot be locked when it is opened; this function is that when the door is open and people are outside the car and the key is inside the car, the car door cannot be locked.

[0037] The above embodiments are merely descriptions for the purpose of clearly illustrating the present invention, and are not limitations on the implementation methods. For those skilled in the art, other different forms of changes or modifications may be made based on the above descriptions. It is not necessary and impossible to enumerate all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A front door lock body, characterized by: The invention comprises a lock bottom plate (36); a pawl shaft (13), a ratchet shaft (10) and an outer opening shaft (26) are arranged at the bottom of the lock bottom plate (36); a pawl (16) is arranged between the pawl shaft (13) and the lock bottom plate (36); a pawl linkage shaft (17) is arranged on the pawl (16); a locking torsion spring (12) is also arranged on the pawl shaft (13); a ratchet spring (8) is arranged on the ratchet shaft (10); a ratchet (11) is arranged between the ratchet shaft (10) and the lock bottom plate (36); an outer opening torsion spring (15), an inner and outer opening linkage plate (34) and an outer opening rocker arm (28) are arranged in sequence between the outer opening shaft (26) and the lock bottom plate (36); a sliding arm (31) is also arranged on the inner and outer opening linkage plate (34); It also includes an upper cover plate (1); a micro switch seat (25) and a first micro switch (27) and a second micro switch (29) connected to the micro switch seat (25) are arranged at the bottom of the upper cover plate (1); an inner opening rocker arm (6) and an inner opening torsion spring (7) are connected on the side wall via an inner opening rocker arm shaft (9) and an inner opening retaining spring (32); The lock body (35) is connected between the lock bottom plate (36) and the upper cover plate (1); the bottom of the lock body (35) is provided with an outer locking rocker arm (30), a locking rocker arm (23) matched with the sliding arm (31), a worm gear shaft (22), a first buffer block (14) connected between the lock body (35) and the lock bottom plate (36), a locking buffer block (24) matched with the locking rocker arm (23), a motor (4), and a motor worm (2) connected to the motor (4); the inner locking rocker arm shaft (3) on the side wall is connected with an inner locking rocker arm (5) matched with the locking rocker arm (23) and the inner opening rocker arm (6); the worm gear shaft (22) is provided with a worm wheel (20) meshing with the motor worm (2), a balancing block (18) arranged in the worm wheel (20), a balancing retaining spring (19), and a worm gear transmission member (21) matched with the locking rocker arm (23); One end of the ratchet spring (8) abuts against the ratchet (11), and the other end abuts against the lock body (35); One end of the locking torsion spring (12) abuts against the lock body (35), and the other end abuts against the locking rocker arm (23); One end of the outward-opening torsion spring (15) abuts against the lock body (35), and the other end abuts against the sliding arm (31).

2. A front door lock body according to claim 1, characterized in that: The lock bottom plate (36) and the lock body (35) are connected by riveting.

3. A front door lock body according to claim 1, characterized in that: The upper cover plate (1) and the lock body (35) are connected via self-tapping screws (33).

4. A front door lock body according to claim 1, characterized in that: An insulating circuit structure (37) is also provided between the upper cover plate (1) and the lock body (35).

Images