Locking structure for automobile door lock

Abstract

The utility model relates to the technical field of automobile door locks, in particular to a locking structure for an automobile door lock, which comprises a first lock shell, two first positioning grooves are arranged on the lower surface of a driving lever, and a sliding bolt component and a locking bolt component are arranged in a second lock shell. The sliding bolt assembly comprises a first base, a first lower section rod, a first annular block and a first upper section rod, the first lower section rod is in sliding and clamping fit with the second lock shell, the locking bolt assembly comprises a second base, a second lower section rod, a second annular block and a second upper section rod, the second lower section rod is in sliding and clamping fit with the second lock shell, and the second lower section rod is in sliding and clamping fit with the second lock shell. And an electric locking device is arranged in the second lock shell. The electric locking device is small in occupied space, so that the production cost is reduced; and through threaded connection of the lead screw and the screw hole, tolerance clearances between the gear and the clamping teeth do not exist, the situation of looseness cannot occur after long-time use, and the safety guarantee of the vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a car door lock technical field especially relates to a lock structure for car door lock. BACKGROUND

[0002] The car door lock is an important component of the car safety, which ensures the safety and theftproof of the vehicle in the driving process. The car door lock is an important part to ensure the safety of the car, with the development of the automobile industry, the function and the kind of the car door lock are increasingly numerous, the passenger's understanding of the car knowledge is increasing, and the requirement of the car door lock is also gradually increased.

[0003] For example, the authorized announcement number "CN210013594U" is named a double locking unlocking structure, although through the cooperation of the remote control motor, the gear, the toothed, the lock tongue, the guide rod, the stop block and the first spring, the lock can be remotely controlled, the design of the lock tongue can prevent the car door from being opened in the case of broken window, and the safety of the vehicle is greatly improved. But, the gear occupies a large space, and the production cost of the gear is high; and the meshing of the gear and the toothed will have a tolerance gap, and the long-time use will appear the loosening condition. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the shortcomings in the prior art and provides a lock structure for car door lock.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model designs a kind of locking structure for car door lock, including first lock shell, two first spring seats are equipped in the upper inner wall of the first lock shell, two the lock hook is rotatably connected with the first spring seat, the first torsion spring is provided with in the first spring seat, the first torsion spring both ends are arranged on the inner wall of first lock shell and the surface of lock hook respectively, the surface of the opposite side of two the lock hook is equipped with lock tooth, the second spring seat is equipped in the lower inner wall of the first lock shell, the second spring seat is rotatably connected with the lever, the lever one end is matched with lock tooth, the second spring seat is provided with the second torsion spring, the second torsion spring both ends are arranged on the inner wall of first lock shell and the surface of lever respectively, the upper inner wall of the first lock shell is rotatably connected with unlocking mechanism, the surface of unlocking mechanism one side is equipped with unlocking protrusion, and the surface of lever is contacted with unlocking protrusion, and the third torsion spring is provided with in the unlocking mechanism, the lower surface of the lever is equipped with two first positioning slot, the lower surface of the first lock shell is equipped with second lock shell, the inside of the second lock shell is equipped with sliding bolt assembly and locking bolt assembly, the sliding bolt assembly includes first base, first lower section rod, first annular block and first upper section rod, the first lower section rod is slidably connected with the second lock shell and is clampedly connected, the first upper section rod upper end penetrates the first lock shell and is contacted with the surface of first positioning slot, the surface of the first upper section rod is equipped with second positioning slot, the inside of the lower portion one side of the second positioning slot is equipped with positioning hole, the first spring is arranged between the lower surface of the first annular block and the lower inner wall of the second lock shell, the locking bolt assembly includes second base, second lower section rod, second annular block and second upper section rod, the second lower section rod is slidably connected with the second lock shell and is clampedly connected, the second annular block one side surface and the one side inner wall of the second lock shell are equipped with the second spring, the second upper section rod one end close to the positioning hole is matched with the positioning hole, the inside of the second lock shell is equipped with electrical locking device, and the upper end of the electrical locking device is contacted with the surface of first positioning slot.

[0007] Preferably, the electrical locking device includes a motor, the motor is arranged on the lower inner wall of the second lock shell, the upper surface of the motor is equipped with a rotating shaft, the rotating shaft is externally sleeved with a lead screw, the rotating shaft is slidably connected with the lead screw and is clampedly connected, the lower surface of the first lock shell is equipped with a wire hole, the lead screw penetrates the wire hole and is threadedly connected with the wire hole, and the upper end of the lead screw is contacted with the surface of the first positioning slot.

[0008] Preferably, the lead screw is internally provided with a sliding cavity, the rotating shaft penetrates the lead screw and extends into the sliding cavity, the two side inner walls of the sliding cavity are both equipped with a first limiting slot, and the surface of the rotating shaft is equipped with two first limiting blocks.

[0009] Preferably, the surface of the first lower section rod is equipped with a second limiting slot, the lower surface of the second lock shell is equipped with a first through hole, one end of the first lower section rod penetrates the first through hole, the inner wall of the first through hole is equipped with a second limiting block, and the second limiting slot is matched with the second limiting block.

[0010] Preferably, the second lower section rod surface is provided with a third limiting groove, the second lock shell side surface is provided with a second through hole, the second lower section rod one end penetrates through the second through hole, the second through hole inner wall is provided with a third limiting block, and the third limiting groove is matched with the third limiting block.

[0011] Preferably, the screw rod upper surface is provided with a mounting groove, the mounting groove lower inner wall is provided with a third spring, the third spring upper end is provided with a contact point, and the contact point is electrically connected with the automobile computer end.

[0012] The automobile door lock locking structure has the advantages that: the electrical locking device is arranged, the motor is started to rotate the rotating shaft, the screw rod is moved upward, the upper end of the screw rod is finally tightly pressed against the first positioning groove, the electrical locking is completed, the electrical locking device is not provided with a gear, the occupied space is small, and the production cost is reduced; and the screw rod and the screw hole are connected through threads, there is no tolerance gap of the gear and the tooth, the screw rod and the screw hole will not be loose after long-time use, and the safety guarantee of the vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the door lock opening of the utility model;

[0014] Figure 2 It is a structure schematic view of the door lock closing of the utility model;

[0015] Figure 3 It is a structure schematic view of the sliding bolt assembly of the utility model;

[0016] Figure 4 It is a structure schematic view of the locking bolt assembly of the utility model;

[0017] Figure 5 It is a structure schematic view of the rotating shaft and the screw rod of the utility model;

[0018] Figure 6 It is an A position enlarged view of the utility model;

[0019] Figure 7 It is a B position enlarged view of the utility model.

[0020] In the figure: first lock housing 1, first spring seat 2, lock hook 3, first torsion spring 4, lock tooth 5, second spring seat 6, detent rod 7, second torsion spring 8, unlocking mechanism 9, unlocking protrusion 10, third torsion spring 11, first positioning groove 12, second lock housing 13, first base 14, first lower section rod 15, first annular block 16, first upper section rod 17, second positioning groove 18, positioning hole 19, first spring 20, second base 21, second lower section rod 22, second annular block 23, second upper section rod 24, second spring 25, motor 26, rotating shaft 27, screw rod 28, screw hole 29, sliding cavity 30, first limiting groove 31, first limiting block 32, second limiting groove 33, second limiting block 34, third limiting groove 35, third limiting block 36, mounting groove 37, third spring 38, contact 39. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figures 1-7 , A locking structure for a car door lock, comprising a first lock shell 1, an upper inner wall of the first lock shell 1 is provided with two first spring seats 2, the two first spring seats 2 are both rotatably connected to lock hooks 3, the two first spring seats 2 are both sleeved with a first torsion spring 4, the two ends of the first torsion spring 4 are respectively arranged on the inner wall of the first lock shell 1 and the surface of the lock hook 3, the two lock hooks 3 are both provided with locking teeth 5 on the opposite side surfaces, a second spring seat 6 is provided on the lower inner wall of the first lock shell 1, the second spring seat 6 is rotatably connected to a dial rod 7, one end of the dial rod 7 matches the locking teeth 5, the second spring seat 6 is sleeved with a second torsion spring 8, the two ends of the second torsion spring 8 are respectively arranged on the inner wall of the first lock shell 1 and the surface of the dial rod 7, the upper inner wall of the first lock shell 1 is rotatably connected to an unlocking mechanism 9, an unlocking protrusion 10 is provided on one side surface of the unlocking mechanism 9, the unlocking protrusion 10 is in contact with the surface of the dial rod 7, and the unlocking mechanism 9 is sleeved with a third torsion spring 11,

[0023] The lower surface of the dial lever 7 is provided with two first positioning grooves 12, the lower surface of the first lock shell 1 is provided with a second lock shell 13, the inside of the second lock shell 13 is provided with a sliding bolt assembly and a locking bolt assembly, the sliding bolt assembly comprises a first base 14, a first lower section lever 15, a first annular block 16 and a first upper section lever 17, the first lower section lever 15 is in sliding and clamping fit with the second lock shell 13, through the sliding and clamping fit of the first lower section lever 15 with the second lock shell 13, the rotation of the first lower section lever 15 is prevented. The upper end of the first upper section lever 17 penetrates through the first lock shell 1 and is in surface contact with the first positioning groove 12, through the abutting of the first upper section lever 17 against the first positioning groove 12, the clockwise rotation of the dial lever 7 is prevented, and the locking of the locked hook 3 is ensured. The surface of the first upper section lever 17 is provided with a second positioning groove 18, the inside wall of one side of the lower part of the second positioning groove 18 is provided with a positioning hole 19, the first annular block 16 is provided with a first spring 20 between the lower surface and the lower inner wall of the second lock shell 13, the locking bolt assembly comprises a second base 21, a second lower section lever 22, a second annular block 23 and a second upper section lever 24, the second lower section lever 22 is in sliding and clamping fit with the second lock shell 13, through the sliding and clamping fit of the second lower section lever 22 with the second lock shell 13, the rotation of the second lower section lever 22 is prevented. The second annular block 23 is provided with a second spring 25 between the surface of one side and the inner wall of one side of the second lock shell 13, the end of the second upper section lever 24 close to the positioning hole 19 is matched with the positioning hole 19, the inside of the second lock shell 13 is provided with an electrical locking device, the upper end of the electrical locking device is in surface contact with the first positioning groove 12. Through the abutting of the upper end of the electrical locking device against the first positioning groove 12, the clockwise rotation of the dial lever 7 is prevented, and the locking of the locked hook 3 is ensured.

[0024] The electrical locking device comprises a motor 26, the motor 26 is arranged on the lower inner wall of the second lock shell 13, the upper surface of the motor 26 is provided with a rotating shaft 27, the rotating shaft 27 is externally sleeved with a lead screw 28, the rotating shaft 27 is in sliding and clamping fit with the lead screw 28, the lower surface of the first lock shell 1 is provided with a lead hole 29, the lead screw 28 penetrates through the lead hole 29 and is in threaded connection with the lead hole 29, the upper end of the lead screw 28 is in surface contact with the first positioning groove 12.

[0025] The inside of the lead screw 28 is provided with a sliding cavity 30, the rotating shaft 27 penetrates through the lead screw 28 and extends into the sliding cavity 30, the inner walls of both sides of the sliding cavity 30 are provided with first limiting grooves 31, the surface of the rotating shaft 27 is provided with two first limiting blocks 32, the first limiting blocks 32 are matched with the first limiting grooves 31. Through the cooperation of the first limiting blocks 32 and the first limiting grooves 31, the rotating shaft 27 can drive the lead screw 28 to rotate, and through the threaded connection of the lead screw 28 with the lead hole 29, the lead screw 28 can move upward or downward.

[0026] The first lower section rod 15 is provided with a second limiting slot 33 on its surface, the second lock shell 13 is provided with a first through hole on its lower surface, one end of the first lower section rod 15 penetrates through the first through hole, the inner wall of the first through hole is provided with a second limiting block 34, and the second limiting slot 33 is matched with the second limiting block 34. The cooperation of the second limiting block 34 and the second limiting slot 33 allows the first lower section rod 15 to only move in the up-down direction and cannot rotate.

[0027] The second lower section rod 22 is provided with a third limiting slot 35 on its surface, the second lock shell 13 is provided with a second through hole on one side surface, one end of the second lower section rod 22 penetrates through the second through hole, the inner wall of the second through hole is provided with a third limiting block 36, and the third limiting slot 35 is matched with the third limiting block 36. The cooperation of the third limiting block 36 and the third limiting slot 35 allows the second lower section rod 22 to only move in the left-right direction and cannot rotate.

[0028] The upper surface of the lead screw 28 is provided with a mounting slot 37, the lower inner wall of the mounting slot 37 is provided with a third spring 38, the upper end of the third spring 38 is provided with a contact point 39, and the contact point 39 is electrically connected with the automobile computer end. When the contact point 39 contacts the first positioning slot 12, the contact point 39 is pressed into the mounting slot 37, the electric circuit is connected, the signal is transmitted to the automobile computer end, and whether the door is locked is determined through the automobile computer end.

[0029] Working principle: when the door lock is in the open state, as shown in Figure 1 First, close the door, make the two lock hooks 3 impact the center lock shaft of the door, make the left lock hook 3 rotate clockwise and the right lock hook 3 rotate counterclockwise, at this time, the two lock hooks 3 press the push rod 7, make the push rod 7 be clamped on the lock tooth 5, as shown in Figure 2; The sliding bolt assembly is arranged, the first base 14 is pushed to make the first upper rod 17 move upward, when the positioning hole 19 reaches the second upper rod 24, the second upper rod 24 is inserted into the positioning hole 19 due to the compression force of the spring on the second annular block 23, so that the sliding bolt assembly is fixed, at this time, the first upper rod 17 is inserted into the first positioning groove 12, and the lever 7 is fixed. The electric locking device is arranged, the motor 26 is started to make the rotating shaft 27 rotate, the screw rod 28 is rotated due to the sliding and clamping cooperation between the rotating shaft 27 and the screw rod 28, the screw rod 28 is moved upward through the threaded connection between the screw rod 28 and the screw hole 29, finally the upper end of the screw rod 28 is tightly pressed against the first positioning groove 12, and the electric locking is completed; when the vehicle window is damaged, the electric locking also ensures that the door lock cannot be opened, and the safety guarantee of the vehicle is greatly improved. When the door lock needs to be opened, the electric locking device is arranged, the motor 26 is started in reverse to make the rotating shaft 27 rotate in reverse, the screw rod 28 is moved downward, the screw rod 28 is separated from the first positioning groove 12, the second base 21 is pulled to make the second upper rod 24 separate from the positioning hole 19, the first annular block 16 is moved downward under the stretching force of the spring, and then the first upper rod 17 is separated from the first positioning groove 12; at this time, the unlocking mechanism 9 can be rotated clockwise through the vehicle key, the unlocking protrusion 10 is pressed on the upper end of the lever 7 to make the lever 7 rotate clockwise, then the right upper end of the lever 7 is separated from the lock tooth 5, the two lock hooks 3 are rotated counterclockwise and clockwise under the action of the first torsional spring 4, and at this time, the vehicle is in the unlocking state, like Figure 1 .

[0030] The above merely describes a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A locking structure for a car door lock, comprising a first lock housing (1), characterized in that: The upper inner wall of the first lock housing (1) is provided with two first spring seats (2), the two first spring seats (2) are both rotatably connected to a lock hook (3), the two first spring seats (2) are both sleeved with a first torsion spring (4), the two ends of the first torsion spring (4) are respectively arranged on the inner wall of the first lock housing (1) and the surface of the lock hook (3), the opposite side surfaces of the two lock hooks (3) are both provided with a lock tooth (5), the lower inner wall of the first lock housing (1) is provided with a second spring seat (6), the second spring seat (6) is rotatably connected to a shift rod (7), one end of the shift rod (7) matches the lock tooth (5), and the second spring seat (6) is provided with a second spring seat (6). ) are sleeved with a second torsion spring (8), the two ends of the second torsion spring (8) are respectively arranged on the inner wall of the first lock shell (1) and the surface of the shift rod (7), the upper inner wall of the first lock shell (1) is rotatably connected with an unlocking mechanism (9), one side surface of the unlocking mechanism (9) is provided with an unlocking protrusion (10), the unlocking protrusion (10) is in contact with the surface of the shift rod (7), the unlocking mechanism (9) is sleeved with a third torsion spring (11), the lower surface of the shift rod (7) is provided with two first positioning grooves (12), the lower surface of the first lock shell (1) is provided with a second lock shell (13), and the interior of the second lock shell (13) is provided with a sliding latch The invention relates to a sliding latch assembly and a locking bolt assembly, wherein the sliding latch assembly comprises a first base (14), a first lower section rod (15), a first annular block (16) and a first upper section rod (17), wherein the first lower section rod (15) slides and snaps into engagement with the second lock shell (13), the upper end of the first upper section rod (17) passes through the first lock shell (1) and contacts the surface of the first positioning groove (12), the surface of the first upper section rod (17) is provided with a second positioning groove (18), the inner wall of one side of the lower part of the second positioning groove (18) is provided with a positioning hole (19), and a positioning hole (19) is provided between the lower surface of the first annular block (16) and the lower inner wall of the second lock shell (13). A first spring (20), the locking pin assembly includes a second base (21), a second lower rod (22), a second annular block (23) and a second upper rod (24), the second lower rod (22) and the second lock shell (13) are slidably and snap-fitted, a second spring (25) is provided between a side surface of the second annular block (23) and an inner wall of a side of the second lock shell (13), an end of the second upper rod (24) close to the positioning hole (19) matches the positioning hole (19), an electrical locking device is provided inside the second lock shell (13), and the upper end of the electrical locking device contacts the surface of the first positioning groove (12).

2. The locking structure for a car door lock according to claim 1, characterized in that: The electric locking device includes a motor (26), the motor (26) is arranged on the lower inner wall of the second lock shell (13), the upper surface of the motor (26) is provided with a rotating shaft (27), the outer surface of the rotating shaft (27) is sleeved with a screw rod (28), the rotating shaft (27) and the screw rod (28) are slidably and snap-fitted, the lower surface of the first lock shell (1) is provided with a screw hole (29), the screw rod (28) passes through the screw hole (29) and is threadedly connected to the screw hole (29), and the upper end of the screw rod (28) contacts the surface of the first positioning groove (12).

3. The locking structure for a car door lock according to claim 2, characterized in that: A sliding cavity (30) is provided inside the screw rod (28), the rotating shaft (27) passes through the screw rod (28) and extends into the sliding cavity (30), first limiting grooves (31) are provided on the inner walls on both sides of the sliding cavity (30), and two first limiting blocks (32) are provided on the surface of the rotating shaft (27), and the first limiting blocks (32) match the first limiting grooves (31).

4. The locking structure for a car door lock according to claim 1, characterized in that: A second limiting groove (33) is provided on the surface of the first lower section rod (15), a first through hole is provided on the lower surface of the second lock housing (13), one end of the first lower section rod (15) passes through the first through hole, a second limiting block (34) is provided on the inner wall of the first through hole, and the second limiting groove (33) matches the second limiting block (34).

5. The locking structure for a car door lock according to claim 1, characterized in that: A third limiting groove (35) is provided on the surface of the second lower section rod (22), a second through hole is provided on one side surface of the second lock housing (13), one end of the second lower section rod (22) passes through the second through hole, a third limiting block (36) is provided on the inner wall of the second through hole, and the third limiting groove (35) matches the third limiting block (36).

6. The locking structure for a car door lock according to claim 2, characterized in that: The upper surface of the screw rod (28) is provided with a mounting groove (37), the lower inner wall of the mounting groove (37) is provided with a third spring (38), the upper end of the third spring (38) is provided with a contact (39), and the contact (39) is electrically connected to the car computer terminal.

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