Door lock with double-lock suction mechanism

Abstract

The invention provides a door lock with a double-lock pull-in mechanism, which comprises a shell, a back plate, a pull-in connecting rod, a pull-in stay wire, a release connecting rod and the double-lock pull-in mechanism, the double-lock pull-in mechanism is arranged between the shell and the back plate, one end of the pull-in connecting rod is connected with the pull-in stay wire, and the other end of the pull-in connecting rod is connected to the double-lock pull-in mechanism. And the release connecting rod is also connected with the double-lock suction mechanism. According to the double-locking mechanism, the one-locking function is achieved through cooperation of the pawl and the pawl auxiliary rod, meanwhile, the two-locking function is achieved through cooperation of the suction connecting rod and the clamping plate, the two-locking function is achieved through the structure, and on the premise that safety is guaranteed, the linkage level is high, and work connection is smooth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile door lock, and particularly relates to a door lock with double lock engaging mechanisms. BACKGROUND

[0002] At present, on a vehicle, a door lock is an important part for closing a vehicle door, and stability and accuracy of work of the door lock are important indexes for whether the door lock is good or not. When a door lock is opened and closed, engaging and releasing are generally performed by one lock. In a specific environment, the structure of one lock cannot meet the use requirement of the door lock. The engagement of two lock engaging structures is relatively complex at present, and the engagement is prone to be not smooth. The published patent 202511051548.3 discloses a door lock mechanism and a vehicle. The door lock mechanism includes a shell, a ratchet wheel and a pawl. The pawl includes a floating support and a floating pawl. When the door lock mechanism is switched from an unlocking state to a locking state, the ratchet wheel pushes the floating pawl to rotate relative to the floating support. When the door lock mechanism is switched from the locking state to the unlocking state, the floating pawl is pushed by the floating support to rotate synchronously with the floating support, and the ratchet wheel rotates following the rotation of the floating pawl. When the door lock mechanism is switched from the unlocking state to the locking state, the floating pawl rotates relative to the shell alone, the floating support remains fixed relative to the shell, and only the floating pawl hits the ratchet wheel. Since the mass and the moment of inertia of the floating pawl are small, the impact inertia and the impact energy when the pawl and the ratchet wheel hit each other are reduced, and vibration and impact noise are reduced. Although multiple buffer components are used to realize multiple-stage buffering, the engagement of the two lock engaging structures is still relatively complex, and the engagement is prone to be not smooth. Therefore, it is particularly important to solve the problem of unsmooth engagement of the existing double lock engaging mechanisms. SUMMARY

[0003] The purpose of the present application is to provide a door lock with double lock engaging mechanisms. One lock function is realized by cooperation of a pawl and a pawl auxiliary rod, and two lock functions are realized by cooperation of an engaging connecting rod and a clamping plate. The two lock functions realized by the above structure have high linkage level and smooth work engagement under the premise of safety, and the problem of unsmooth engagement of the existing double lock engaging mechanisms is solved.

[0004] The present application provides a door lock with double lock engaging mechanisms. The door lock includes a shell, a back plate, an engaging connecting rod, an engaging pull wire, a releasing connecting rod and double lock engaging mechanisms. The double lock engaging mechanisms are arranged between the shell and the back plate. One end of the engaging connecting rod is connected with the engaging pull wire, and the other end of the engaging connecting rod is connected with the double lock engaging mechanisms. The releasing connecting rod is also connected with the double lock engaging mechanisms.

[0005] Further improvement lies in that the double-lock suction mechanism comprises a base plate, a clamping plate, a signal rod and a pawl, the clamping plate is arranged on the base plate, the signal rod is arranged beside the clamping plate and is arranged on the base plate through a first rotating shaft, the signal rod rotates around the first rotating shaft as the axis, a first switch is arranged beside the first rotating shaft, the pawl is arranged on the base plate through a second rotating shaft, the pawl rotates around the second rotating shaft as the axis, and a second switch is arranged beside the second rotating shaft.

[0006] Further improvement lies in that a first reset spring is arranged on the first rotating shaft, and a first buffer block is arranged beside the first rotating shaft.

[0007] Further improvement lies in that a second reset spring is arranged on the second rotating shaft, and a second buffer block is arranged beside the second rotating shaft.

[0008] Further improvement lies in that a pawl auxiliary rod is arranged beside the pawl, and the locking work is completed through cooperation of the pawl auxiliary rod and the pawl.

[0009] Further improvement lies in that the suction connecting rod is arranged on the first rotating shaft.

[0010] Further improvement lies in that the release connecting rod is arranged on the second rotating shaft.

[0011] Further improvement lies in that a suction motor is arranged at the rear end of the suction pull wire, the suction motor drives the suction pull wire to pull the suction connecting rod, and then drives the double-lock suction mechanism to work.

[0012] The present application has the advantages that one-way locking is realized through cooperation of the pawl and the pawl auxiliary rod, two-way locking is realized through cooperation of the suction connecting rod and the clamping plate, the two-way locking realized through the above structure has high linkage level and smooth work connection under the premise of ensuring safety, the first switch can detect whether the clamping plate reaches the two-way locking position through linkage of the signal rod and the clamping plate, self-checking protection in the locking state is realized, the suction pull rod is coaxial with the clamping plate, any position of the clamping plate can be acted on, the clamping plate reaches the two-way locking position, meanwhile, the suction connecting rod returns to the initial position under the action of the reset spring, the suction action is completed, and the suction is completed to return to the initial position, which does not affect the movement of the clamping plate switch. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural appearance schematic view of the present application.

[0014] Figure 2 It is a double-lock suction mechanism appearance schematic view of the present application.

[0015] Figure 3 It is a double-lock suction mechanism full opening position schematic view of the present application.

[0016] Figure 4is the first lock position schematic diagram of the double lock attraction mechanism of the present application.

[0017] Figure 5 is the second lock position schematic diagram of the double lock attraction mechanism of the present application.

[0018] Wherein: 1 - shell, 2 - back plate, 3 - attraction connecting rod, 4 - attraction pull wire, 5 - release connecting rod, 6 - base plate, 7 - clamping plate, 8 - signal rod, 9 - pawl, 10 - first rotating shaft, 11 - first switch, 12 - second rotating shaft, 13 - second switch, 14 - first reset spring, 15 - first buffer block, 16 - second reset spring, 17 - second buffer block, 18 - pawl auxiliary rod, 19 - attraction motor. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present application, the present application will be further described below in conjunction with examples, which are only used to explain the present application and do not constitute a limitation on the protection scope of the present application.

[0020] As shown in Figures 1-5 The present embodiment provides a door lock with a double lock attraction mechanism, which comprises a shell 1, a back plate 2, an attraction connecting rod 3, an attraction pull wire 4, a release connecting rod 5 and a double lock attraction mechanism. The double lock attraction mechanism is arranged between the shell 1 and the back plate 2. One end of the attraction connecting rod 3 is connected with the attraction pull wire 4, and the other end of the attraction connecting rod 3 is connected with the double lock attraction mechanism. The release connecting rod 5 is also connected with the double lock attraction mechanism. The double lock attraction mechanism comprises a base plate 6, a clamping plate 7, a signal rod 8 and a pawl 9. The clamping plate 7 is arranged on the base plate 6, the signal rod 8 is arranged beside the clamping plate 7 and is arranged on the base plate 6 through a first rotating shaft 10, the signal rod 8 rotates around the first rotating shaft 10 as the axis, a first switch 11 is arranged beside the first rotating shaft 10, the pawl 9 is arranged on the base plate 6 through a second rotating shaft 12, the pawl 9 rotates around the second rotating shaft 12 as the axis, and a second switch 13 is arranged beside the second rotating shaft 12. A first reset spring 14 is arranged on the first rotating shaft 10, and a first buffer block 15 is arranged beside the first rotating shaft 10. A second reset spring 16 is arranged on the second rotating shaft 12, and a second buffer block 17 is arranged beside the second rotating shaft 12. A pawl auxiliary rod 18 is arranged beside the pawl 9, and the pawl auxiliary rod 18 cooperates with the pawl 9 to complete the locking work. The attraction connecting rod 3 is arranged on the first rotating shaft 10. The release connecting rod 5 is arranged on the second rotating shaft 12. An attraction motor 19 is arranged at the rear end of the attraction pull wire 4, and the attraction motor 19 drives the attraction pull wire 4 to pull the attraction connecting rod 3, thereby driving the double lock attraction mechanism to work.

[0021] Attraction mechanism principle: When the card 7 is turned to the one-way lock position from the fully open position, the pawl 9 and the pawl auxiliary rod 18 are turned to the locked position around the second pivot 12 under the action of the second reset spring 16, realizing the one-way lock function. The second switch 13 changes its state, and the pull wire 4 pulls the pull rod 3, so that the pull rod 3 rotates around the first pivot 10. The pull rod 3 is coaxial with the card 7, and after the pull rod 3 rotates and contacts the protruding feature of the card 7, the pull rod 3 drives the card 7 to rotate to the two-way lock position. The signal rod 8 is linked with the card 7, and the first switch 11 can detect whether the card 7 is in the two-way lock position. During the rotation, the pawl 9 is pushed away and then returns to the locked position under the action of the second reset spring 16, realizing the two-way lock function. Then, the pull rod 3 returns to the initial position under the action of the first reset spring 14, completing the pull-in action.

[0022] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A door lock with a double locking snap action mechanism, characterized by: Including shell (1), backboard (2), suction linkage (3), suction pull line (4), release linkage (5) and double lock suction mechanism, the double lock suction mechanism is arranged between shell (1) and backboard (2), one end of suction linkage (3) is connected with suction pull line (4), the other end of suction linkage (3) is connected on double lock suction mechanism, release linkage (5) is also connected with double lock suction mechanism.

2. A door closer with double locking mechanism as claimed in claim 1 wherein: The double lock suction mechanism includes base plate (6), clamping plate (7), signal rod (8) and pawl (9), the clamping plate (7) is arranged on the base plate (6), the signal rod (8) is arranged beside the clamping plate (7), and is arranged on the base plate (6) through the first rotating shaft (10), the signal rod (8) rotates with the first rotating shaft (10) as the axis, the first rotating shaft (10) is provided with the first switch (11) beside, the pawl (9) is arranged on the base plate (6) through the second rotating shaft (12), the pawl (9) rotates with the second rotating shaft (12) as the axis, the second rotating shaft (12) is provided with the second switch (13) beside.

3. A door closer with double locking mechanism as claimed in claim 2 wherein: The first rotating shaft (10) is provided with the first reset spring (14), and the first rotating shaft (10) is provided with the first buffer block (15) beside.

4. A door closer with double locking mechanism as claimed in claim 2 wherein: The second rotating shaft (12) is provided with the second reset spring (16), and the second rotating shaft (12) is provided with the second buffer block (17) beside.

5. A door closer with double locking mechanism according to any one of claims 2 to 4, characterized in that: The pawl (9) is provided with pawl auxiliary rod (18), and the locking work is completed by the cooperation of pawl auxiliary rod (18) and pawl (9).

6. A door closer with double locking mechanism as claimed in claim 2 wherein: The suction linkage (3) is arranged on the first rotating shaft (10).

7. A door closer with double locking mechanism as claimed in claim 2 wherein: The release linkage (5) is arranged on the second rotating shaft (12).

8. A door closer with double locking mechanism as claimed in claim 1 wherein: The rear end of the suction pull line (4) is provided with suction motor (19), and the suction motor (19) drives the suction pull line (4) to pull the suction linkage (3), and then drives the double lock suction mechanism to work.

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