Self-actuation and electric unlocking mechanism for automobile door lock

Abstract

The utility model discloses a self-suction and electric unlocking mechanism of an automobile door lock. The self-suction and electric unlocking mechanism comprises a lock block support, a motor, a gear transmission mechanism, a tooth piece, a self-suction rocker arm, an electric unlocking push rod, an outward opening rocker arm, a manual unlocking deflector rod, a bottom plate, a lock body, a pawl and a ratchet wheel. The lock block support is connected with the bottom plate, the lock body is installed on the bottom plate, and the ratchet wheel and the pawl are arranged between the bottom plate and the lock body. The motor is installed on the locking block support, one end of the motor is connected with the gear transmission mechanism through a worm, the tooth piece is installed on the locking block support through a tooth piece shaft, the tooth piece rotates with the tooth piece shaft as the axis, a rack structure is arranged on the tooth piece, and the tooth piece is connected with the gear transmission mechanism in a meshed mode through the rack structure. The motor drives the tooth piece to rotate through the gear transmission mechanism; the automobile door lock is simple in structure and convenient to use, has self-actuation and electric unlocking functions, increases the selectable range of the automobile door lock, and meets the use requirements of different automobile types.

Description

Technical Field

[0001] The utility model relates to a self-closing and electric unlocking mechanism for a car door lock. Background Art

[0002] With the advancement of science and technology, the increase in the types of automobiles, the use of automobiles has also tended to be intelligent and automated; some existing vehicles have already adopted automatic doors, and the door opening adopts automatic locks, and the opening of automatic locks is generally controlled by motors and electronic devices to achieve automatic unlocking and locking operations; although there are many types of existing door locks, all of which achieve the same purpose, they are affected by the research directions and ideas of different manufacturers and designers, and the door lock structures designed by different manufacturers and designers are different. Therefore, door locks with different structures have different structural characteristics; at the same time, with the increasing market competition, improving competitiveness is the foundation of an enterprise, and for this reason, it has become very necessary to develop a new type of automobile door lock to meet the needs of the market. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a self-priming and electric unlocking mechanism for automobile door locks which is simple in structure, easy to use, and has self-priming and electric unlocking functions, thereby increasing the selectable range of automobile door locks. The self-priming and electric unlocking mechanism for automobile door locks is practical and widely used.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A self-priming and electric unlocking mechanism for a car door lock, comprising a lock block bracket, a motor, a gear transmission mechanism, a toothed part, a self-priming rocker arm, an electric unlocking push rod, an outer opening rocker arm, a manual unlocking lever, a bottom plate, a lock body, a pawl and a ratchet;

[0006] The lock block bracket is connected to the bottom plate, the lock body is installed on the bottom plate, and the ratchet and the pawl are arranged between the bottom plate and the lock body;

[0007] The motor is installed on the lock block bracket, one end of the motor is connected to the gear transmission mechanism through a worm, the toothed part is installed on the lock block bracket through a toothed part shaft, the toothed part rotates around the toothed part shaft as the axis, a rack structure is provided on the toothed part, the toothed part is meshed and connected with the gear transmission mechanism through the rack structure, and the motor drives the toothed part to rotate through the gear transmission mechanism;

[0008] The self-priming rocker arm is installed on the gear through the self-priming rocker arm shaft, and the other end of the self-priming rocker arm shaft is connected to the gear shaft, and the gear drives the self-priming rocker arm to rotate;

[0009] The electric unlocking push rod is installed on the lock block bracket, and one end of the electric unlocking push rod is movably connected to the lock block bracket through a pin shaft;

[0010] The toothed part is provided with an electric unlocking lever shaft, and the toothed part drives the electric unlocking push rod to rotate through the electric unlocking lever shaft;

[0011] A pawl lever is provided on one side of the pawl, the pawl lever and the pawl are mounted on the pawl shaft, the pawl lever and the pawl rotate around the pawl shaft, a portion of the pawl lever is embedded in the pawl, the pawl lever pushes the pawl to rotate, and the manual unlocking lever pushes the pawl lever to rotate;

[0012] The ratchet is installed on the lock body and the bottom plate through the ratchet shaft. The ratchet rotates around the ratchet shaft. A ratchet contact portion is provided on the ratchet. The self-priming rocker arm pushes the ratchet to rotate through the ratchet contact portion.

[0013] Preferably, the outward opening rocker arm and the manual unlocking lever are installed on the lock block bracket through the unlocking lever shaft, and the outward opening rocker arm and the manual unlocking lever rotate around the unlocking lever shaft.

[0014] This arrangement realizes the linkage of the outward opening rocker arm and the manual unlocking lever, thereby realizing manual unlocking.

[0015] Preferably, a reset signal switch is installed on one side of the tooth member.

[0016] This arrangement detects the movement position and state of the tooth by resetting the signal switch, which facilitates the operation of the motor.

[0017] Preferably, a ratchet signal switch is installed on the lock body, and the ratchet signal switch cooperates with the ratchet lever.

[0018] This setting detects the movement state of the pawl through the action of the pawl signal switch to realize the transmission of the trigger signal, thereby realizing the limiting effect of the pawl on the ratchet wheel and realizing the control of half lock (primary lock) and full lock (secondary lock).

[0019] Preferably, a ratchet signal switch is installed on the upper end of the ratchet shaft, and the ratchet signal switch cooperates with the ratchet.

[0020] This arrangement detects the movement state of the ratchet through the action of the ratchet signal switch, realizes the transmission of the trigger signal, and realizes the judgment of the primary lock and secondary lock state of the ratchet, thereby facilitating the automatic operation of the door lock.

[0021] The beneficial effects of the utility model are: simple structure, easy use, self-closing and electric unlocking functions, increasing the selectable range of automobile door locks, and being practical and widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below, but this does not limit the protection scope of the utility model.

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the utility model;

[0025] Figure 3 This is a schematic diagram of the ratchet primary lock state of the utility model;

[0026] Figure 4 This is a schematic diagram of the ratchet secondary lock state of the utility model;

[0027] Figure 5 This is a schematic diagram of the ratchet unlocking state of the utility model.

[0028] Among them, 1. lock block bracket, 2. motor, 3. gear transmission mechanism, 4. gear, 5. gear shaft, 6. self-priming rocker arm, 7. self-priming rocker arm shaft, 8. reset signal switch, 9. electric unlocking lever shaft, 10. electric unlocking push rod, 11. outside opening rocker arm, 12. manual unlocking lever, 13. unlocking lever shaft, 14. bottom plate, 15. lock body, 16. pawl lever, 17. pawl, 18. pawl shaft, 19. pawl signal switch, 20. ratchet, 21. ratchet shaft, 22. ratchet signal switch, 23. ratchet contact part, 24. rack structure, 25. pull wire connecting part. DETAILED DESCRIPTION

[0029] See also Figures 1 to 5 The self-priming and electric unlocking mechanism of a car door lock shown in the figure includes a lock block bracket 1, a motor 2, a gear transmission mechanism 3, a toothed member 4, a self-priming rocker arm 6, an electric unlocking push rod 10, an outer opening rocker arm 11, a manual unlocking lever 12, a bottom plate 14, a lock body 15, a pawl 17 and a ratchet 20;

[0030] The lock block bracket 1 is connected to the bottom plate 14, the lock body 15 is installed on the bottom plate 14, and the ratchet 20 and the pawl 17 are arranged between the bottom plate 14 and the lock body 15;

[0031] The motor 2 is mounted on the lock block bracket 1, one end of the motor 2 is connected to the gear transmission mechanism 3 through a worm, the toothed member 4 is mounted on the lock block bracket 1 through a toothed member shaft 5, the toothed member 4 rotates around the toothed member shaft 5, a rack structure 24 is provided on the toothed member 4, the toothed member 4 is meshed and connected with the gear transmission mechanism 3 through the rack structure 24, and the motor 2 drives the toothed member 4 to rotate through the gear transmission mechanism 3;

[0032] The self-priming rocker arm 6 is installed on the gear 4 through the self-priming rocker arm shaft 7. The other end of the self-priming rocker arm shaft 7 is connected to the gear shaft 5. The gear 4 drives the self-priming rocker arm 6 to rotate.

[0033] The electric unlocking push rod 10 is installed on the lock block bracket 1, and one end of the electric unlocking push rod 10 is movably connected to the lock block bracket through a pin shaft;

[0034] The electric unlocking lever shaft 9 is installed on the toothed member 4, and the toothed member 4 drives the electric unlocking push rod 10 to rotate through the electric unlocking lever shaft 9;

[0035] A pawl lever 16 is provided on one side of the pawl 17. The pawl lever 16 and the pawl 17 are mounted on a pawl shaft 18. The pawl lever 16 and the pawl 17 rotate around the pawl shaft 18. A portion of the pawl lever 16 is embedded in the pawl 17. The pawl lever 16 pushes the pawl 17 to rotate. The manual unlock lever 12 pushes the pawl lever 16 to rotate.

[0036] The ratchet 20 is installed on the lock body 15 and the base plate 14 through a ratchet shaft 21 . The ratchet 20 rotates around the ratchet shaft 21 . A ratchet contact portion 23 is provided on the ratchet 20 . The self-priming rocker arm 6 pushes the ratchet 20 to rotate through the ratchet contact portion 23 .

[0037] Furthermore, the outer opening rocker arm 11 and the manual unlocking lever 12 are mounted on the lock block bracket 1 via the unlocking lever shaft 13 , and the outer opening rocker arm 11 and the manual unlocking lever 12 rotate around the unlocking lever shaft 13 .

[0038] Furthermore, a reset signal switch 8 is installed on one side of the toothed member 4 .

[0039] Furthermore, a ratchet signal switch 19 is installed on the lock body, and the ratchet signal switch 19 cooperates with the ratchet lever 16 .

[0040] Furthermore, a ratchet signal switch 22 is installed on the upper end of the ratchet shaft 21 , and the ratchet signal switch 22 cooperates with the ratchet 20 .

[0041] Furthermore, the gear transmission mechanism is installed on the locking block bracket 1.

[0042] Furthermore, the ratchet, pawl, manual unlocking lever and self-priming rocker arm are all provided with a reset torsion spring.

[0043] Furthermore, a pull wire connection portion 25 is provided at one end of the manual unlocking lever.

[0044] When the utility model is used, the door lock is installed through the bottom plate and the lock block bracket; during the use process; when the self-priming operation is performed, when the ratchet rotates clockwise into the primary lock position (such as Figure 3As shown), at this time, the ratchet signal switch triggers the primary lock signal, and the pawl signal switch signal jumps. When the controller (on-board facility, not shown) receives the primary lock signal and the pawl jump signal, the motor drives the gear to rotate through the gear transmission mechanism. The gear drives the self-priming rocker arm to move. The self-priming rocker arm pushes the ratchet to lock into the secondary lock through the ratchet contact part. At this time, the secondary lock signal is triggered and the self-priming stops; when the motor reverses, the gear triggers the reset signal switch signal, the motor stops rotating, and the self-priming ends.

[0045] When performing the manual unlocking operation: pulling the handlebar, the pull wire (at the pull wire connection part) drives the manual unlocking lever to rotate around the manual unlocking lever axis, the manual lever contacts the pawl lever, causing the pawl lever to rotate around the pawl axis, and the other end of the pawl lever drives the pawl to rotate and disengage from the ratchet wheel, and the ratchet wheel rotates to the unlocking position under the action of its own reset torsion spring. After releasing the hand, the pawl resets under the action of its own reset torsion spring, and manual unlocking is completed.

[0046] When electric unlocking is performed: pressing the unlock switch on the vehicle door triggers the unlock signal, and the signal is transmitted to the controller (on-board equipment). The controller controls the motor to rotate, driving the gear to rotate. The electric unlocking lever shaft on the gear will push the electric unlocking push rod. The pull wire on the electric unlocking push rod will pass through the conversion mechanism (door lock supporting mechanism, not shown) to pull the unlocking pull wire to move. The unlocking pull wire drives the manual unlocking lever to rotate. The manual unlocking lever contacts the pawl lever, and the other end of the pawl lever drives the pawl to rotate, so that the pawl is disengaged from the ratchet. The ratchet rotates to the unlocking position under the action of its own reset torsion spring. When the hand is released, the pawl resets under the action of its own reset torsion spring. At this time, the controller receives the pawl jump signal and the pawl signal switch signal, and controls the motor to reverse. When the controller receives the reset signal switch signal, the motor stops rotating and the electric unlocking ends.

[0047] The door lock of the utility model can be used on doors of vehicles of different models.

[0048] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A self-closing and electric unlocking mechanism for a car door lock, characterized in that: It includes a lock block bracket, a motor, a gear transmission mechanism, a toothed part, a self-priming rocker arm, an electric unlocking push rod, an external opening rocker arm, a manual unlocking lever, a bottom plate, a lock body, a pawl and a ratchet; The lock block bracket is connected to the bottom plate, the lock body is installed on the bottom plate, and the ratchet and the pawl are arranged between the bottom plate and the lock body; The motor is installed on the lock block bracket, one end of the motor is connected to the gear transmission mechanism through a worm, the toothed part is installed on the lock block bracket through a toothed part shaft, the toothed part rotates around the toothed part shaft as the axis, a rack structure is provided on the toothed part, the toothed part is meshed and connected with the gear transmission mechanism through the rack structure, and the motor drives the toothed part to rotate through the gear transmission mechanism; The self-priming rocker arm is installed on the gear through the self-priming rocker arm shaft, and the other end of the self-priming rocker arm shaft is connected to the gear shaft, and the gear drives the self-priming rocker arm to rotate; The electric unlocking push rod is installed on the lock block bracket, and one end of the electric unlocking push rod is movably connected to the lock block bracket through a pin shaft; The toothed part is provided with an electric unlocking lever shaft, and the toothed part drives the electric unlocking push rod to rotate through the electric unlocking lever shaft; A pawl lever is provided on one side of the pawl, the pawl lever and the pawl are mounted on the pawl shaft, the pawl lever and the pawl rotate around the pawl shaft, a portion of the pawl lever is embedded in the pawl, the pawl lever pushes the pawl to rotate, and the manual unlocking lever pushes the pawl lever to rotate; The ratchet is installed on the lock body and the bottom plate through the ratchet shaft. The ratchet rotates around the ratchet shaft. A ratchet contact portion is provided on the ratchet. The self-priming rocker arm pushes the ratchet to rotate through the ratchet contact portion.

2. The self-closing and electric unlocking mechanism for a car door lock according to claim 1, characterized in that: The outer opening rocker arm and the manual unlocking lever are installed on the lock block bracket through the unlocking lever shaft, and the outer opening rocker arm and the manual unlocking lever rotate around the unlocking lever shaft.

3. The self-closing and electric unlocking mechanism for a car door lock according to claim 1, characterized in that: A reset signal switch is installed on one side of the toothed member.

4. The self-closing and electric unlocking mechanism for a car door lock according to claim 1, characterized in that: A ratchet signal switch is installed on the lock body, and the ratchet signal switch matches with the ratchet lever.

5. The self-closing and electric unlocking mechanism for a car door lock according to claim 1, characterized in that: A ratchet signal switch is installed on the upper end of the ratchet shaft, and the ratchet signal switch matches the ratchet.

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