Child lock safety mechanism for car door lock and car door lock

Abstract

The utility model provides a child lock safety mechanism for a car door lock, which relates to the field of car door locks and comprises a child lock rotating seat rotating around a child lock pin shaft, a child lock unlocking plate coaxial with an inner zipper ratchet wheel and a child lock linkage seat. A child lock through hole matched with a child lock pin shaft is formed in one end of the child lock rotating seat, a shifting rod and a child lock driving groove are arranged at the other end of the child lock rotating seat, and a limiting groove matched with an inner zipper pin shaft, a linkage protruding shaft matched with the driving groove and a child lock connecting shaft matched with a child lock unlocking plate are arranged on the child lock linkage seat. A child lock sliding groove and a child lock unlocking arm are arranged at the two ends of the child lock unlocking plate respectively, and an inner zipper unlocking arm and an idling groove are arranged on the inner zipper ratchet wheel. Compared with the prior art, the child lock safety mechanism adopts the driving lever to drive the child lock rotating seat to rotate, the child lock rotating seat drives the child lock connecting shaft to move up and down in the child lock sliding groove of the child lock unlocking plate, locking and unlocking are achieved, and passengers are prevented from opening a door by mistake.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of door lock, especially a child lock safety mechanism for door lock and door lock. BACKGROUND

[0002] The existing child lock safety mechanism is located at the side door of the automobile and is used to prevent passengers from opening the lock at will, when the child lock is locked, the door cannot be unlocked by the handle, thereby preventing passengers from opening the door by mistake during the driving of the vehicle, ensuring the safety of passengers in the vehicle and improving the safety of the automobile.

[0003] The traditional child lock safety mechanism is a lever structure, which is complex in structure, has a large number of components, and is complex and tedious in cooperation, and is difficult to produce and has a high production cost, and at the same time, the overall structure is increased in size and weight, and is not advantageous in the market which focuses on lightweight products. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a child lock safety mechanism for door lock, which is simple in structure, convenient to operate, safe and stable, and improves the safety of the automobile.

[0005] The utility model adopts the technical scheme that:

[0006] A child lock safety mechanism for door lock is arranged in a lock shell of the door lock, an unlocking ratchet wheel and an inner pull lock ratchet wheel are respectively arranged in the lock shell through an unlocking pin shaft and an inner pull lock pin shaft, the inner pull lock ratchet wheel is connected with an inner pull handle return spring, and the child lock safety mechanism comprises a child lock rotating seat rotating around a child lock pin shaft, a child lock unlocking plate coaxial with the inner pull lock ratchet wheel and used for driving the unlocking ratchet wheel in the lock shell to rotate, and a child lock linkage seat used for driving a child lock connecting plate and matched with the child lock rotating seat, the child lock pin shaft is arranged on the lock shell, one end of the child lock rotating seat is provided with a child lock through hole matched with the child lock pin, the other end of the child lock rotating seat is provided with a lever used for being pushed by a user and a child lock driving groove used for driving the child lock linkage seat, the child lock linkage seat is provided with a limiting groove matched with the inner pull lock pin shaft, one end of the child lock linkage seat is provided with a linkage protruding shaft matched with the driving groove in the front surface, the other end of the child lock linkage seat is provided with a child lock connecting shaft connected with the child lock unlocking plate in the back surface, one end of the child lock unlocking plate is provided with a child lock sliding groove used for sliding the child lock connecting shaft, and the other end of the child lock unlocking plate is formed with a child lock unlocking arm used for pushing the unlocking ratchet wheel, the inner pull lock ratchet wheel is provided with an inner pull lock unlocking arm used for pushing the child lock connecting shaft in one end of the child lock sliding groove when the lever is in an unlocking state and an idle groove used for allowing the child lock connecting shaft in the other end of the child lock sliding groove to pass through when the lever is in a locking state.

[0007] Preferably, the limiting slot is a strip-shaped opening slot, the limiting slot is arranged at the middle position of the child lock linkage seat, the linkage protruding shaft is arranged at the front surface of one end of the child lock linkage seat, the child lock connecting shaft is arranged at the back surface of the other end of the child lock linkage seat, and the child lock connecting shaft is formed with an insertion opening for the side wall of the child lock sliding slot.

[0008] Preferably, the inner pull lock ratchet wheel is provided with a through hole matched with the inner pull lock pin shaft, the idle slot is arranged at one end of the inner pull lock ratchet wheel, the idle slot is an arc-shaped slot, one end of the idle slot is open, the other end of the idle slot is closed, and the one side of the idle slot is formed with the inner pull lock unlocking arm; the other end of the inner pull lock ratchet wheel is bent to form a rotation stop plate, and the rotation stop plate is located at the back surface of the inner pull lock ratchet wheel.

[0009] Preferably, one end of the child lock unlocking plate is provided with the child lock sliding slot, the other end of the child lock unlocking plate is formed with the child lock unlocking arm, the middle position of the child lock unlocking plate is sleeved with the unlocking plate through hole on the inner pull lock pin shaft, and the child lock unlocking plate is further bent to form the reset bending part located at one side of the inner pull lock ratchet wheel.

[0010] Preferably, the child lock rotating seat comprises a rotating main body, a rotating handle and a child lock through hole are arranged at two ends of the rotating main body respectively, a rotating sector plate is arranged at one side of the rotating main body, and a child lock driving slot is arranged on the rotating sector plate; and the other side of the rotating main body is further provided with a guide arm.

[0011] Preferably, the child lock rotating seat is arranged on the child lock inner shell, the child lock inner shell is mounted on the lock shell, the child lock pin shaft is arranged on the child lock inner shell, the child lock inner shell is further provided with a placing slot for placing the child lock linkage seat, the placing slot is provided with a pin shaft seat coaxial with the inner pull lock pin shaft, and the limiting slot of the child lock linkage seat is sleeved on the pin shaft seat; and the child lock inner shell is further provided with a guide side seat, and the guide side seat is formed with a guide slot matched with the guide arm.

[0012] More preferably, the child lock inner shell is further provided with a stop seat for stopping the rotating handle.

[0013] Preferably, the child lock inner shell is located in the child lock outer shell, the child lock outer shell is mounted on the lock shell, and the child lock outer shell is provided with a rotating handle slot for exposing the rotating handle.

[0014] Preferably, the lock shell comprises a main shell and a side shell arranged at one side of the main shell, the inner pull lock ratchet wheel is arranged in the side cavity of the side shell, and the child lock inner shell and the child lock outer shell are mounted on the front surface of the side shell.

[0015] The utility model further provides a vehicle door lock, and the child lock safety mechanism is mounted in the vehicle door lock.

[0016] Compared with the prior art, the child lock safety mechanism for the vehicle door lock has the advantages that the child lock safety mechanism for the vehicle door lock is simple in structure, convenient to operate, safe and stable, the rotating seat of the child lock is driven to rotate by the driving rod, the child lock connecting shaft of the linkage seat of the child lock is driven to move up and down in the child lock sliding groove of the child lock unlocking plate, when in the unlocking state, the child lock connecting shaft is butted with the unlocking arm in the child lock sliding groove, the ratchet wheel of the inner pull lock is driven to rotate, the unlocking arm of the child lock unlocking plate is driven to rotate by the child lock connecting shaft, so that the unlocking arm of the child lock unlocking plate drives the unlocking ratchet wheel to rotate, and the inner pull handle of the vehicle door is unlocked to open the door; and when in the locking state, the child lock connecting shaft corresponds to the idle slot in the child lock sliding groove, the ratchet wheel of the inner pull lock is driven to rotate, the unlocking arm of the inner pull lock is staggered with the child lock connecting shaft, so that the inner pull handle cannot open the door, and the safety of the driver and the passenger is protected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A schematic view of the child lock safety mechanism for the vehicle door lock is provided.

[0018] Figure 2 An explosion view of the child lock safety mechanism for the vehicle door lock in the vehicle door lock is provided.

[0019] Figure 3 An explosion view of the child lock safety mechanism for the vehicle door lock is provided.

[0020] Figure 4 A schematic view of the rotating seat of the child lock in the child lock safety mechanism for the vehicle door lock is provided.

[0021] Figure 5 A schematic view of the linkage seat of the child lock in the child lock safety mechanism for the vehicle door lock is provided.

[0022] Figure 6 A schematic view of the inner shell of the child lock in the child lock safety mechanism for the vehicle door lock is provided.

[0023] Figure 7 A locking schematic view of the child lock safety mechanism for the vehicle door lock is provided. Figure 1 .

[0024] Figure 8 A locking schematic view of the child lock safety mechanism for the vehicle door lock is provided. Figure 2 .

[0025] Figure 9 An unlocking schematic view of the child lock safety mechanism for the vehicle door lock is provided. Figure 1 .

[0026] Figure 10 The utility model provides a child lock safety mechanism for a car door lock unlocking schematic diagram Figure 2 .

[0027] Figure 11 A schematic diagram of unlocking the inner zipper ratchet in a child lock safety mechanism for a car door lock provided by the utility model Figure 1 .

[0028] Figure 12 A schematic diagram of unlocking the inner zipper ratchet in a child lock safety mechanism for a car door lock provided by the utility model Figure 2 . DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0030] Figures 1 to 12 , is a preferred embodiment of a child lock safety mechanism for a vehicle door lock provided by the present invention. Figures 1 to 12 As shown, the child lock safety mechanism 40 is arranged in the lock shell 10 of the vehicle door lock, and the unlocking ratchet 20 and the inner zipper ratchet 30 are respectively installed in the lock shell 10 through the unlocking pin shaft 201 and the inner zipper pin shaft 301, and the inner zipper ratchet 30 is connected to the inner handle return spring 302. The inner zipper ratchet 30 is connected to the inner handle of the vehicle door through the inner zipper. When the inner door handle is pulled, the inner zipper ratchet 30 can be driven to rotate. When the child lock safety mechanism is in the locked state, pulling the inner zipper ratchet 30 cannot drive the unlocking ratchet 20 to rotate, so that the vehicle door cannot be opened from the inside, avoiding accidental opening of the vehicle door and ensuring the safety of the passengers in the vehicle; and when the child lock safety mechanism 40 is in the unlocked state, pulling the inner zipper ratchet 30 can drive the unlocking ratchet 20 to rotate, so that the inner handle can be unlocked.

[0031] The child lock safety mechanism 40 includes a child lock rotating seat 41 rotating around a child lock pin shaft 401, a child lock unlocking plate 42 coaxial with the inner pull lock ratchet wheel 30 for pushing the unlocking ratchet wheel 20 in the lock shell to rotate, and a child lock linkage seat 43 cooperating with the child lock rotating seat 41 for driving the child lock connecting plate. The child lock pin shaft 401 is arranged on the lock shell. One end of the child lock rotating seat 41 is provided with a child lock through hole 413 cooperating with the child lock pin 404. The other end of the child lock rotating seat 41 is provided with a push rod 411 for a user to push and a child lock driving groove 412 for driving the child lock linkage seat. The child lock linkage seat 43 is provided with a limiting groove 431 cooperating with the inner pull lock pin shaft, a linkage protruding shaft 432 cooperating with the driving groove, and a child lock connecting shaft 433 cooperating with the child lock unlocking plate. Both ends of the child lock unlocking plate 42 are respectively provided with a child lock sliding groove 421 for the child lock connecting shaft 433 to slide and a child lock unlocking arm 422 for pushing the unlocking ratchet wheel. The inner pull lock ratchet wheel 30 is provided with an inner pull lock unlocking arm 31 for pushing the child lock connecting shaft in one end of the child lock sliding groove when the push rod is in the unlocking state, and an idle groove 32 for the child lock connecting shaft in the other end of the child lock sliding groove to pass through when the push rod is in the locking state. Thus, in the locking state, as shown in Figure 7 and Figure 8 , the push rod 411 drives the child lock rotating seat 41 to rotate to the locking position. The linkage protruding shaft 432 on the child lock linkage seat 43 cooperates with the child lock driving groove 412. Under the driving action of the child lock driving groove 412 and the action of the limiting groove 431 and the inner pull lock pin shaft 301, the child lock connecting shaft 433 on the child lock linkage seat 43 slides in the child lock sliding groove 421 to correspond to the idle groove 32 on the inner pull lock ratchet wheel 30. When the inner pull lock ratchet wheel 30 is forced to rotate under the action of the inner pull handle, the child lock connecting shaft 433 enters the idle groove 32. The child lock connecting shaft 433 is offset from the inner pull lock unlocking arm 31, so that the inner pull lock ratchet wheel 30 cannot drive the child lock unlocking plate 42 to rotate, realizing that the inner pull handle cannot open the door, protecting the safety of the driver and passenger. In the unlocking state, as shown in Figure 9 and Figure 10 , the push rod 411 drives the child lock rotating seat 41 to rotate to the unlocking position. Under the driving action of the child lock driving groove 412 and the action of the limiting groove 431 and the inner pull lock pin shaft 301, the child lock connecting shaft 433 on the child lock linkage seat 43 slides in the child lock sliding groove 421 to correspond to the inner pull lock unlocking arm 31. When the inner pull lock ratchet wheel 30 is forced to rotate under the action of the inner pull handle, as shown in Figure 11 and Figure 12 , the inner pull lock unlocking arm 31 drives the child lock unlocking plate 42 to rotate through the child lock connecting shaft 433, so that the child lock unlocking arm 422 of the child lock unlocking plate 42 pushes the unlocking ratchet wheel 20 to rotate, realizing that the inner pull handle opens the door and unlocks. It is worth noting that the specific unlocking process of the unlocking ratchet wheel 20 driving the rotation of the inner lock tongue of the door lock can refer to the prior art, and can also refer to the patent application with the application number 2024116054024, which is not described here.

[0032] As Figure 4 shown, the child lock rotating seat 41 includes a rotating body 4101, a lever 411 and a child lock through hole 413 are respectively arranged at both ends of the rotating body 4101, one side of the rotating body 4101 is provided with a rotating sector plate 4102, a child lock driving groove 412 is arranged on the rotating sector plate 4102; the other side of the rotating body 4101 is also provided with a guide arm 4103, the lever 411 pushes the rotating body 4101 to rotate left and right around the child lock pin shaft 401 matched with the child lock through hole 413, so as to drive the child lock linkage seat 43 to move up and down.

[0033] As Figure 5 shown, the child lock linkage seat 43 is strip-shaped, the limiting groove 431 is a strip-shaped through opening groove, the limiting groove 431 is arranged at the middle position of the child lock linkage seat 43, the linkage protruding shaft 432 is arranged on the front surface of one end of the child lock linkage seat 43, the child lock connecting shaft 433 is arranged on the back surface of the other end of the child lock linkage seat 43, the child lock connecting shaft 433 is formed with an insertion opening 4331 for inserting the child lock sliding groove 421. As shown, the bottom of the child lock connecting shaft 433 is provided with a connecting supporting plate 4332, the connecting supporting plate 4332 and the back surface of the child lock linkage seat 43 form the insertion opening 4331, so as to avoid the child lock connecting shaft 433 from separating from the child lock sliding groove 421, and ensure that the child lock connecting shaft 433 slides up and down in the child lock sliding groove 421.

[0034] As Figure 3 shown, the inside pull lock ratchet wheel 30 is in the form of a sector plate, the inside pull lock ratchet wheel 30 is provided with a through hole 33 matched with the inside pull lock pin shaft 301, an idle groove 32 is arranged at one end of the inside pull lock ratchet wheel 30, the idle groove 32 is an arc-shaped groove, one end of the idle groove 32 is open, the other end of the idle groove 32 is closed, and the inside pull lock unlocking arm 31 is formed on one side of the idle groove 32. When locking, the child lock connecting shaft 433 corresponds to the idle groove 32, the inside pull lock ratchet wheel 30 rotates and cannot drive the child lock connecting shaft 433 and the child lock unlocking plate 42 to rotate, so that the inside pull lock ratchet wheel 30 idles, the inside pull handle connected with the inside pull lock ratchet wheel 30 cannot open the door, and locking is realized. The other end of the inside pull lock ratchet wheel 30 is bent to form a rotation stop plate 34, the rotation stop plate 34 is located on the back surface of the inside pull lock ratchet wheel 30, and the rotation stop plate 34 cooperates with the limiting protrusion in the lock shell to limit the rotation angle of the inside pull lock ratchet wheel 30.

[0035] The child lock unlocking plate 42 is in the shape of a strip, and a child lock slide groove 421 is provided at one end of the child lock unlocking plate 42, and a child lock unlocking arm 422 is formed at the other end of the child lock unlocking plate 42. The middle position of the child lock unlocking plate 42 is sleeved on the unlocking plate through hole 423 on the zipper pin shaft 301, and the child lock unlocking plate 42 is also bent to form a reset bent portion 424 on the side of the inner zipper ratchet 30. When the inner zipper ratchet 30 is reset by the action of the inner handle reset spring 302, the bent portion 424 is used to synchronously drive the child lock unlocking plate 42 to reset.

[0036] like Figure 6 As shown, the child lock rotating seat 41 is arranged on the child lock inner shell 44, the child lock inner shell 44 is installed on the lock shell 10, the child lock pin shaft 401 is arranged on the child lock inner shell 44, and the child lock inner shell 44 is also provided with a placement groove 441 for placing the child lock linkage seat, and a pin shaft seat 442 coaxial with the inner pull lock pin shaft is provided in the placement groove 441, and the limiting groove 431 of the child lock linkage seat 43 is sleeved on the pin shaft seat 442, so that the child lock inner shell 44 supports the child lock rotating seat 41 and the child lock linkage seat 43, and positions the child lock rotating seat 41 and the child lock linkage seat 43.

[0037] The child lock inner housing 44 is further provided with a guide side seat 443. A guide groove 4431 is formed in the guide side seat 443 to cooperate with the guide arm 403. This presets the rotation trajectory of the child lock rotating seat 41. The end of the guide arm 403 extends into the guide groove 4431 to position the child lock rotating seat 41 and prevent it from jumping. The child lock inner housing 44 is also provided with a stop seat 444 for stopping the detent rod 411. When the detent rod 411 rotates to the position contacting the stop seat 444, it is in the locked position, indicating that the entire child lock safety mechanism 40 is in the locked state. When the detent rod 411 rotates to the other position, it is in the unlocked position, indicating that the entire child lock safety mechanism 40 is in the unlocked state.

[0038] The child lock inner shell 44 is located in the child lock outer shell 45, and the child lock outer shell 45 is installed on the lock shell 10. The child lock outer shell 45 is provided with a lever groove 451 for exposing the lever 411. The child lock outer shell 45 protects the child lock inner shell 44 and other components. The stop seat 444 is at the bottom end of the lever groove 451. When the lever 411 rotates to the bottom end of the lever groove 451, it is in the lever locking position 45101. The lever 411 is in the top end of the lever groove 451, which is the lever unlocking position 45102.

[0039] The lock housing 10 comprises a main housing 102 and a side housing 101 arranged on one side of the main housing, the inner pull lock ratchet 30 is arranged in a side cavity of the side housing 101, the child lock inner housing 44 and the child lock outer housing 45 are installed on the front surface of the side housing 101, and the child lock rotating seat 41, the child lock unlocking plate 42 and the child lock linkage seat 43 are arranged in the side cavity of the side housing, so that the user can adjust the child lock state from the vehicle, and the vehicle door is locked or unlocked by the child lock.

[0040] The specific use process of the child lock safety mechanism 40 is as follows: (1) child lock locking state: as shown in Figure 7 and Figure 8 , the dial lever 411 is rotated to the dial lever locking position 45101 of the dial lever groove 451, under the driving action of the child lock driving groove 412 on the child lock rotating seat 41 and the action of the limiting groove 431 and the inner pull lock pin shaft 301, the child lock connecting shaft 433 on the child lock linkage seat 43 slides into the top end of the child lock sliding groove 421, the child lock connecting shaft 433 corresponds to the idle groove 32 on the inner pull lock ratchet 30, when the inner pull lock ratchet 30 is forced to rotate under the action of the inner pull handle, the child lock connecting shaft 433 enters the idle groove 32, the child lock connecting shaft 433 is offset from the inner pull lock unlocking arm 31, so that the inner pull lock ratchet 30 cannot drive the child lock unlocking plate 42 to rotate, and the safety of the driver and the passenger is protected. Figure 9 and Figure 10 , the dial lever 411 is rotated to the dial lever unlocking position 45102 of the dial lever groove 451, under the driving action of the child lock driving groove 412 on the child lock rotating seat 41 and the action of the limiting groove 431 and the inner pull lock pin shaft 301, the child lock connecting shaft 433 on the child lock linkage seat 43 slides into the bottom end of the child lock sliding groove 421, the child lock connecting shaft 433 on the child lock linkage seat 43 slides in the child lock sliding groove 421 to correspond to the inner pull lock unlocking arm 31, when the inner pull lock ratchet 30 is forced to rotate under the action of the inner pull handle, as shown in Figure 11 and Figure 12 , the inner pull lock unlocking arm 31 drives the child lock unlocking plate 42 to rotate through the child lock connecting shaft 433, so that the child lock unlocking arm 422 of the child lock unlocking plate 42 drives the unlocking ratchet 20 to rotate, and the door is unlocked by the inner pull handle.

[0041] The utility model also provides a vehicle door lock, the child lock safety mechanism 40 is installed in the vehicle door lock, the safety of the driver and the passenger is protected.

[0042] In summary, the technical scheme of the utility model can fully and effectively realize the above-mentioned utility model purposes, the structure and function principle of the utility model have been fully verified in the embodiments, the expected effects and purposes can be achieved, various changes or modifications can be made to the embodiments of the utility model without departing from the principles and essence of the utility model. Therefore, the utility model includes all the replacements within the range mentioned in the patent application, any equivalent changes made within the range of the patent application of the utility model belong to the patent application of the utility model.

Claims

1. A child lock mechanism for a vehicle door lock, provided in a lock housing of the vehicle door lock, an unlocking ratchet and an inner pull lock ratchet being installed in the lock housing by an unlocking pin shaft and an inner pull lock pin shaft, respectively, the inner pull lock ratchet being connected to an inner pull handle return spring, characterized in that, The child lock rotation seat rotates around the child lock pin shaft, the child lock unlocking plate is coaxial with the inside pull lock ratchet wheel and is used to push the unlocking ratchet wheel in the lock shell, and the child lock linkage seat is used to drive the child lock connecting plate.

2. Child lock securing mechanism for a door lock according to claim 1, characterized in that The limiting slot is a strip-shaped through slot, the limiting slot is arranged at the middle position of the child lock linkage seat, the linkage protruding shaft is arranged at the front surface of one end of the child lock linkage seat, and the child lock connecting shaft is arranged at the back surface of the other end of the child lock linkage seat.

3. A child lock securing mechanism for a door lock according to claim 1, characterized in that: The inside pull lock ratchet wheel is provided with a through hole matched with the inside pull lock pin shaft, the idle slot is arranged at one end of the inside pull lock ratchet wheel, the idle slot is an arc-shaped slot, one end of the idle slot is open, the other end of the idle slot is closed, and the inside pull lock unlocking arm is formed at one side of the idle slot.

4. Child lock securing mechanism for a door lock according to claim 3, characterized in that: One end of the child lock unlocking plate is provided with the child lock sliding slot, the other end of the child lock unlocking plate is formed with the child lock unlocking arm, the unlocking plate through hole on the inside pull lock pin shaft is arranged at the middle position of the child lock unlocking plate, and the reset bending part at one side of the inside pull lock ratchet wheel is further arranged on the child lock unlocking plate.

5. A child lock securing mechanism for a door lock according to claim 1, characterized in that: The child lock rotation seat comprises a rotation main body, the dial lever and the child lock through hole are arranged at two ends of the rotation main body respectively, the rotation main body is provided with a rotation sector plate on one side, and the child lock driving slot is arranged on the rotation sector plate.

6. Child lock securing mechanism for a door lock according to claim 5, characterized in that The child lock rotation seat is arranged on the child lock inner shell, the child lock inner shell is arranged on the lock shell, the child lock pin shaft is arranged on the child lock inner shell, the child lock inner shell is further provided with the placing groove for placing the child lock linkage seat, the pin shaft seat coaxial with the inside pull lock pin shaft is arranged in the placing groove, and the limiting slot of the child lock linkage seat is arranged on the pin shaft seat.

7. Child lock securing mechanism for a door lock according to claim 6, characterized in that The child lock inner shell is further provided with the stop seat for stopping the dial lever.

8. Child lock securing mechanism for a door lock according to claim 6, characterized in that The child lock inner shell is arranged in the child lock outer shell, the child lock outer shell is arranged on the lock shell, the dial lever slot for exposing the dial lever is arranged on the child lock outer shell.

9. Child lock securing mechanism for a door lock according to claim 8, characterized in that The lock shell comprises a main shell and a side shell arranged at one side of the main shell, the inside pull lock ratchet wheel is arranged in the side cavity of the side shell, and the child lock inner shell and the child lock outer shell are arranged on the front surface of the side shell.

10. A vehicle door lock characterized by comprising: The child lock safety mechanism is arranged in the vehicle door lock.

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