Car door lock

Abstract

According to the technical scheme, the door lock is characterized by comprising a shell, a transmission mechanism is arranged on the shell, the transmission mechanism is connected with a lock body mechanism and a first control mechanism, the transmission mechanism comprises a first transmission shaft used for controlling the lock body mechanism to achieve unlocking and locking, and the first transmission shaft is fixedly connected with a first abutting wheel; the first control mechanism comprises a rotary connecting piece which is used for being connected with the control handle and rotationally connected with the shell, the rotary connecting piece is connected with a first abutting piece, and the first abutting piece is fixedly connected with a second abutting piece connected with the first abutting wheel in an abutting mode. And whether the second abutting piece abuts against the first abutting disc or not is controlled through vertical movement of the first abutting piece, whether the automobile door is opened or not is finally controlled through the control handle arranged on the outer side, and the purpose that a mechanical control structure is arranged as a safety device and the automobile door lock can be prevented from being accidentally unlocked is achieved.

Description

Technical Field

[0001] The utility model relates to a lock, more specifically, it relates to a car door lock. Background Art

[0002] As an important part of the car body, the door must meet the needs of people and goods entering and exiting, and have a sealing property to isolate the interior of the car body from the outside world. In addition, the door is required to be safe and reliable. Now that electric vehicles are becoming more and more popular on the market, car door locks have also adopted a more convenient electric structure, which no longer requires a lot of force to open the door when in use. Although electric-driven unlocking and locking brings enough convenience to users, the electric structure also lacks safety measures and is prone to unpredictable automatic door opening behavior. If the door is opened at high speed, it will also endanger the personal safety of passengers. Therefore, a car door lock is needed. The device is equipped with a mechanical control structure as an insurance to prevent the door lock from being accidentally unlocked.

[0003] In view of the above reasons, how to set up a mechanical control structure as insurance is exactly the problem considered in this application. Utility Model Content

[0004] In view of the shortcomings of the prior art, a vehicle door lock is provided, which can be provided with a mechanical control structure as a safety to prevent the vehicle door lock from being accidentally unlocked.

[0005] To achieve the above-mentioned purpose, the following technical scheme is provided: a vehicle door lock comprises a shell, a first motor is fixedly connected to the shell, the first motor is connected to a transmission mechanism, the transmission mechanism is connected to a lock body mechanism and a first control mechanism, the transmission mechanism comprises a first transmission shaft for controlling the lock body mechanism to realize the switch lock, the first transmission shaft is fixedly connected to a first protruding interference wheel, the first control mechanism comprises a rotating connecting piece for connecting the control handle and rotatably connected to the shell, the rotating connecting piece is fixedly connected to a first connecting rod, the first connecting rod is rotatably connected to a second connecting rod, the second connecting rod is rotatably connected to an interference rod with the other end rotatably connected to the shell, the interference rod is abutted against a first interference piece, the first interference piece is fixedly connected to a second interference piece abutting against the first interference wheel and a first spring fixedly connected to the shell.

[0006] In summary, the above technical solution has the following beneficial effects: the first motor is a power source for driving the lock body mechanism to realize the opening and closing of the lock, and the lock body mechanism is controlled by the first transmission shaft of the transmission mechanism, so it is only necessary to control the rotation of the first transmission shaft to control the behavior of automatically opening the door, and the first contact wheel fixedly connected to the first transmission shaft has an irregular protrusion, and when the second contact member contacts the first contact wheel, the protruding part of the rotating first contact wheel will contact the second contact member, thereby stopping the rotation, and at this time, the purpose of preventing the lock body mechanism from being unlocked by the mechanical device can be achieved;

[0007] In addition, when the control handle is released, the first resistance member automatically moves upward, but the first resistance wheel will resist the second resistance member, so the first resistance member cannot move upward, and the lock body mechanism remains unlocked. After the door is closed, the first motor rotates in the opposite direction, so that the lock body mechanism is locked. At this time, the first resistance wheel no longer resists the first resistance member, and the first resistance member can move upward normally, and the purpose of preventing the lock body mechanism from being unlocked is achieved again.

[0008] When unlocking is required, the rotating connecting member can be driven to rotate by rotating the control handle or other components connected to the rotating connecting member. The rotation of the rotating connecting member will drive the first connecting rod to move toward the first interference member, and then drive the second connecting rod to move toward the first interference member. Since the other end of the interference rod is rotatably connected to the shell, the horizontal distance from the connection point between the second connecting rod and the interference rod to the connection point between the shell and the interference rod will be reduced, so the interference rod will move downward, thereby driving the first interference member to move downward. After the first interference member moves downward, the second interference member will no longer interfere with the first interference wheel, so that the first transmission shaft can rotate normally, and then the lock body mechanism can be unlocked, thereby achieving the purpose of setting a mechanical control structure as a safety to prevent the door lock from being accidentally unlocked.

[0009] The utility model controls the rotation of the first transmission shaft by arranging the second resistance member and the first resistance wheel, and controls whether the second resistance member and the first resistance wheel are in abutment with each other by the up and down movement of the first resistance member, and finally controls whether the vehicle door is opened or not by a control handle arranged on the outside, and at the same time, the control handle only plays a control effect rather than an unlocking effect, and the unlocking process is realized by the lock body mechanism controlled by the first motor, so that the user does not need to pull the control handle vigorously to unlock the door, which is convenient and labor-saving, and also realizes the purpose of arranging the mechanical control structure as insurance to prevent the vehicle door lock from being accidentally unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of a vehicle door lock;

[0011] Figure 2 It is a structural schematic diagram of the first sector gear in the utility model;

[0012] Figure 3 It is a structural schematic diagram of the first connecting member in the utility model;

[0013] Figure 4 It is a structural schematic diagram of the ratchet in the utility model.

[0014] Reference numerals: 1, housing; 2, transmission mechanism; 3, lock mechanism; 4, first control mechanism; 5, second control mechanism; 6, second connecting member;

[0015] 11. The first motor;

[0016] 21. first transmission shaft; 22. first interference wheel; 23. first transmission gear; 24. first sector gear; 25. ratchet;

[0017] 31. trigger; 32. first connecting member; 33. connecting column; 34. track; 35. second spring; 36. third spring; 37. connecting shaft; 38. first connecting gear; 39. second connecting gear;

[0018] 41. Rotating connecting member; 42. First connecting rod; 43. Second connecting rod; 44. Interference rod; 45. First interference member;

[0019] 451, second resisting member; 452, first spring; 453, third resisting member;

[0020] 51. second motor; 52. second transmission gear; 53. third transmission gear; 54. third transmission shaft; 55. fourth transmission gear; 56. second sector gear; 57. fourth transmission shaft; 58. ratchet; 59. second contact wheel; 61. control rod; 62. spring; DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Reference Figure 1-4 As shown, a door lock comprises a housing 1, a first motor 11 is fixedly connected to the housing 1, the first motor 11 is connected to a transmission mechanism 2, the transmission mechanism 2 is connected to a lock body mechanism 3 and a first control mechanism 4, the transmission mechanism 2 comprises a first transmission shaft 21 for controlling the lock body mechanism 3 to realize the switch lock, the first transmission shaft 21 is fixedly connected to a first convex contact wheel 22, the first control mechanism 4 comprises a rotating connection member 41 for connecting a control handle and rotatably connected to the housing 1, the rotating connection member 41 is fixedly connected to a first connecting rod 42, the first connecting rod 42 is rotatably connected to a second connecting rod 43, the second connecting rod 43 is rotatably connected to a contact rod 44 with the other end rotatably connected to the housing 1, the contact rod 44 is abutted with a first contact member 45, the first contact member 45 is fixedly connected to a second contact member 451 abutting against the first contact wheel 22 and a first spring 452 fixedly connected to the housing 1;

[0023] The first motor 11 is a power source for driving the lock body mechanism 3 to realize the opening and closing of the lock. The lock body mechanism 3 is controlled by the first transmission shaft 21 of the transmission mechanism 2. Therefore, it is only necessary to control the rotation of the first transmission shaft 21 to control the behavior of automatically opening the door. The first contact wheel 22 fixedly connected to the first transmission shaft 21 has an irregular protrusion. When the second contact member 451 contacts the first contact wheel 22, the protruding part of the rotating first contact wheel 22 will contact the second contact member 451, thereby stopping the rotation. At this time, the purpose of preventing the lock body mechanism 3 from being unlocked by the mechanical device can be achieved;

[0024] In addition, when the control handle is released, the first resistance member 45 automatically moves upward, but the first resistance wheel 22 resists the second resistance member 451, and the first resistance member 45 cannot move upward, and the lock body mechanism 3 remains unlocked. After the door is closed, the first motor 11 rotates in the reverse direction to lock the lock body mechanism 3. At this time, the first resistance wheel 22 no longer resists the first resistance member 45, and the first resistance member 45 can move upward normally, and the purpose of preventing the lock body mechanism 3 from being unlocked is achieved again.

[0025] When unlocking is required, the rotating connecting member 41 can be driven to rotate by rotating the control handle or other components connected to the rotating connecting member 41. The rotation of the rotating connecting member 41 will drive the first connecting rod 42 to move toward the first interference member 45, and then drive the second connecting rod 43 to move toward the first interference member 45. Since the other end of the interference rod 44 is rotatably connected to the shell 1, the horizontal distance from the connection point between the second connecting rod 43 and the interference rod 44 to the connection point between the shell 1 and the interference rod 44 will be reduced, so the interference rod 44 will move downward, thereby driving the first interference member 45 to move downward. After the first interference member 45 moves downward, the second interference member 451 no longer interferes with the first interference wheel 22, so that the first transmission shaft 21 can rotate normally, and then the lock body mechanism 3 can be unlocked, thereby achieving the purpose of setting a mechanical control structure as a safety to prevent the door lock from being accidentally unlocked.

[0026] The utility model controls the rotation of the first transmission shaft 21 by setting the second resistance member 451 and the first resistance wheel 22, and controls whether the second resistance member 451 and the first resistance wheel 22 are in contact by the up and down movement of the first resistance member 45, and finally controls whether the door is opened by the control handle set on the outside. At the same time, the control handle only has a control effect but not an unlocking effect. The unlocking process is realized by the first motor 11 controlling the lock body mechanism 3, so that the user does not need to pull the control handle hard to unlock, which is convenient and labor-saving, and also realizes the purpose of setting a mechanical control structure as insurance to prevent the door lock from being accidentally unlocked.

[0027] Further, the lock body mechanism 3 includes a trigger 31 for controlling the door switch lock and rotatably connected to the housing 1, the trigger 31 is slidably connected to a first connecting member 32, the trigger 31 is also fixedly connected to a connecting column 33, the first connecting member 32 is provided with a track 34 for the connecting column 33 to move, the first connecting member 32 is fixedly connected to a connecting shaft 37 rotatably connected to the housing 1, the connecting shaft 37 is fixedly connected to a first connecting gear 38, and the first connecting gear 38 is meshedly connected to a second connecting gear 39 fixedly connected to the first transmission shaft 21;

[0028] The first connecting member 32 is fixedly connected to a second spring 35 fixedly connected to the housing 1 , and the trigger 31 is fixedly connected to a third spring 36 fixedly connected to the housing 1 ;

[0029] The transmission mechanism 2 further includes a first transmission gear 23 connected to the first motor 11, and the first transmission gear 23 is meshedly connected to a first sector gear 24 fixedly connected to the first transmission shaft 21;

[0030] When the first motor 11 is started, it drives the first transmission gear 23 to rotate, and then drives the trigger 31 to move through the first sector gear 24, the first transmission shaft 21, the second connecting gear 39, the first connecting gear 38, the connecting shaft 37, and the first connecting member 32 in sequence, so as to realize the switch lock of the lock body mechanism 3. Since the actual rotation angle required to switch the lock is not large, and excessive rotation will damage the transmission structure of the entire lock body mechanism 3, the first sector gear 24 is provided. If excessive movement occurs, the first sector gear 24 will be separated from the first transmission gear 23, so that the connection between the first connecting member 32 and the trigger 31 can be prevented from being damaged due to excessive rotation.

[0031] When the first motor 11 rotates forward, it can be unlocked, and when it rotates backward, it can be locked. Since the first connecting member 32 and the trigger 31 are large parts, in order to prevent misalignment or jamming, a second spring 35 and a third spring 36 are respectively provided to assist the first connecting member 32 and the trigger 31 in resetting.

[0032] Further, the housing 1 is also equipped with a second control mechanism 5, which includes a second motor 51, the second motor 51 is connected to a second transmission gear 52, the second transmission gear 52 is meshedly connected to a third transmission gear 53, the third transmission gear 53 is fixedly connected to a third transmission shaft 54, the third transmission shaft 54 ​​is fixedly connected to a fourth transmission gear 55 at one end away from the third transmission gear 53, the fourth transmission gear 55 is meshedly connected to a second sector gear 56, the second sector gear 56 is fixedly connected to a fourth transmission shaft 57 rotatably connected to the housing 1, the connecting shaft 37 is fixedly connected to a ratchet 25, and the fourth transmission shaft 57 is fixedly connected to a ratchet pawl 58 for resisting the ratchet 25;

[0033] The third transmission shaft 54 ​​is fixedly connected to a second contact wheel 59 in a protruding shape, and the first contact member 45 is also fixedly connected to a third contact member 453 that contacts the second contact wheel 59;

[0034] The second control mechanism 5 is an electric locking structure, which fixes the first transmission shaft 21 through the cooperation of the ratchet 25 and the pawl 58, thereby preventing the connecting shaft 37 from rotating. The reason for using the second sector gear 56 is similar to that of the first sector gear 24, which is used to prevent damage to the ratchet 25 and the pawl 58 due to excessive rotation, and a second interference wheel 59 with a similar purpose to the first interference wheel 22 is also provided, so that the outer control handle can achieve the effect of overall control.

[0035] Furthermore, the housing 1 is also rotatably connected to a second connecting member 6 for resisting the first connecting member 32, and the second connecting member 6 is fixedly connected to a control rod 61 for extending out of the door and a spring 62 fixedly connected to the housing 1;

[0036] Since the transmission mechanism 2 needs to drive the first connecting member 32 to rotate through multiple components, in order to prevent the components of the transmission mechanism 2 from failing due to damage, a second connecting member 6 is provided for manually controlling the rotation of the first connecting member 32, thereby realizing manual control of the switch lock.

[0037] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle door lock, characterized in that: The invention comprises a housing (1), a first motor (11) fixedly connected to the housing (1), the first motor (11) connected to a transmission mechanism (2), the transmission mechanism (2) connected to a lock body mechanism (3) and a first control mechanism (4), the transmission mechanism (2) comprising a first transmission shaft (21) for controlling the lock body mechanism (3) to realize opening and closing of the lock, the first transmission shaft (21) being fixedly connected to a first contact wheel (22) in a protruding shape, the first control mechanism (4) comprising a control handle connected to the housing (1) and rotatably connected to the housing (1). The rotating connecting member (41) is fixedly connected to a first connecting rod (42), the first connecting rod (42) is rotatably connected to a second connecting rod (43), the second connecting rod (43) is rotatably connected to a contact rod (44) the other end of which is rotatably connected to the shell (1), the contact rod (44) is abutted against a first contact member (45), the first contact member (45) is fixedly connected to a second contact member (451) abutting against a first contact wheel (22) and a first spring (452) fixedly connected to the shell (1).

2. A vehicle door lock according to claim 1, characterized in that: The lock body mechanism (3) comprises a trigger (31) for controlling the door switch lock and rotatably connected to the housing (1); the trigger (31) is slidably connected to a first connecting member (32); the trigger (31) is also fixedly connected to a connecting column (33); the first connecting member (32) is provided with a track (34) for the connecting column (33) to move; the first connecting member (32) is fixedly connected to a connecting shaft (37) rotatably connected to the housing (1); the connecting shaft (37) is fixedly connected to a first connecting gear (38); the first connecting gear (38) is meshingly connected to a second connecting gear (39) fixedly connected to the first transmission shaft (21).

3. A vehicle door lock according to claim 2, characterized in that: The first connecting member (32) is fixedly connected to a second spring (35) fixedly connected to the housing (1), and the trigger (31) is fixedly connected to a third spring (36) fixedly connected to the housing (1).

4. A vehicle door lock according to claim 1, characterized in that: The transmission mechanism (2) also includes a first transmission gear (23) connected to the first motor (11), and the first transmission gear (23) is meshedly connected to a first sector gear (24) fixedly connected to the first transmission shaft (21).

5. A vehicle door lock according to claim 2, characterized in that: The housing (1) is also provided with a second control mechanism (5), the second control mechanism (5) comprising a second motor (51), the second motor (51) being connected to a second transmission gear (52), the second transmission gear (52) being meshedly connected to a third transmission gear (53), the third transmission gear (53) being fixedly connected to a third transmission shaft (54), the third transmission shaft (54) being fixedly connected to a fourth transmission gear (55) at one end away from the third transmission gear (53), the fourth transmission gear (55) being meshedly connected to a second sector gear (56), the second sector gear (56) being fixedly connected to a fourth transmission shaft (57) rotatably connected to the housing (1), the connecting shaft (37) being fixedly connected to a ratchet (25), the fourth transmission shaft (57) being fixedly connected to a ratchet pawl (58) for abutting against the ratchet (25).

6. A vehicle door lock according to claim 5, characterized in that: The third transmission shaft (54) is fixedly connected to a second contact wheel (59) in a protruding shape, and the first contact member (45) is also fixedly connected to a third contact member (453) that contacts the second contact wheel (59).

7. A vehicle door lock according to claim 2, characterized in that: The housing (1) is also rotatably connected to a second connecting member (6) for contacting the first connecting member (32); the second connecting member (6) is fixedly connected to a control rod (61) for extending out of the vehicle door and a spring (62) fixedly connected to the housing (1).

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