Automobile door lock mechanism capable of moving in two directions

Abstract

An automobile door lock mechanism capable of moving in two directions. A drive motor (12) drives a worm (11) to rotate, the worm (11) drives a gear (21) to rotate, the gear (21) drives an electronic opening release rod (51) to rotate, and the electronic opening release rod (51) is provided with an arc surface (511). When the gear (21) rotates, the gear drives a first protrusion (211) to rotate, and the first protrusion (211) pushes a driven wheel (23) to rotate in a notch of the driven wheel (23), so that a swing arm (25) drives a safety rod (27) to rotate, and the safety rod (27) drives a safety pull rod (41) to move. When the safety pull rod (41) moves, a coupling rod (33) is driven to rotate, so that a third protruding column (331) on the coupling rod (33) coincides with or is staggered from the arc surface (511); when same coincide, a safety function is disabled, and when same are staggered, the safety function is enabled. In the safety disabled state, the gear (21) continuously rotates in the rotation direction for enabling the safety function, and then safety enabling and unlocking functions are sequentially completed. When the gear (21) completes the safety enabling function or completes safety enabling and unlocking functions at the same time, the gear (21) rotates in the opposite direction of rotation for safety enabling, and thus a safety disabling function is completed. By means of the automobile door lock mechanism, electronic unlocking and electronic safety enabling can be achieved at the same time, or electronic unlocking and electronic safety disabling can be achieved at the same time, and space is saved.

Description

Bidirectional movement automobile door lock mechanism TECHNICAL FIELD

[0001] The present application relates to the field of automobile door lock, in particular to a bidirectional movement automobile door lock mechanism. BACKGROUND

[0002] With the development of automobile market, the requirements of automobile opening and closing system automation and intelligence are gradually improved, the side door automation, lightweight and functional modularization are gradually improved, and the electric opening and closing of the door becomes the standard configuration of the side door lock. In the prior art, the electric unlocking and the electric unlocking of the safety device are controlled by independent motors, the electric unlocking is a small system, the electric unlocking of the safety device is a small system, the structure is complex, the cost is high, and the volume is large.

[0003] Therefore, it is necessary to provide a bidirectional movement automobile door lock mechanism which can realize electric unlocking and electric unlocking of safety device at the same time and save space. SUMMARY

[0004] The purpose of the present application is to provide a bidirectional movement automobile door lock mechanism which can realize electric unlocking and electric unlocking of safety device at the same time and save space.

[0005] In order to solve the problems in the prior art, the present application provides a bidirectional movement automobile door lock mechanism, comprising: an actuator housing, the actuator housing is provided with a driving motor, a worm, a gear, a passive wheel, a first protrusion, an electric unlocking release rod, a gear return spring, a safety lever, a safety pull rod, a swing arm, a swing arm return spring, a coupling rod, a manual unlocking unit and an electric lock body structure;

[0006] The driving motor drives the worm to rotate, the worm drives the gear to rotate, the gear drives the electric unlocking release rod to rotate, and the electric unlocking release rod is provided with a circular arc surface;

[0007] The passive wheel is an annular structure with a notch, the first protrusion slides in a circular track, the circular track is between the inner and outer circumferences of the annular structure, and the first protrusion is always in the notch of the passive wheel;

[0008] The gear rotates to drive the first protrusion to rotate, and the first protrusion pushes the passive wheel to rotate in the notch;

[0009] The swing arm has opposite first and second ends, the first end is fixed on a fixed shaft of the bumper, and the second end rotates around the fixed shaft, the second end is located in the gap or slides to the annular structure of the passive wheel with the rotation of the passive wheel; in the process of sliding the second end to the annular structure of the passive wheel, the swing arm contacts the limiting column on the bumper, and with the complete sliding of the second end to the annular structure of the passive wheel, the bumper is driven to rotate around the rotation shaft by the limiting column;

[0010] The safety pull rod is T-shaped, the first and second protruding columns are arranged at the horizontal part of the T-shaped safety pull rod; the first protruding column is located in the tail end groove of the safety pull rod, the rotation direction of the tail end groove is opposite to that of the limiting column, and the safety pull rod drives the safety pull rod to move;

[0011] The manual unlocking unit is rotatably installed in the actuator shell through a circular shaft, and the manual unlocking unit is provided with a limiting groove and a fixing hole;

[0012] The coupling rod is rotatably installed in the fixing hole, the coupling rod has a clamping hole and a third protruding column, the second protruding column is clamped in the clamping hole, when the safety pull rod moves, the coupling rod rotates around the fixing hole, so that the coupling rod is limited in the limiting groove or moves out of the limiting groove, and the third protruding column is coincided with or deviated from the circular arc surface, the coincidence is for unlocking, and the deviation is for locking;

[0013] In the unlocking state, the gear continuously rotates in the locking rotation direction, and then the locking and unlocking functions are sequentially completed; when the gear completes the locking function or simultaneously completes the locking and unlocking functions, the gear rotates in the opposite direction of the locking rotation direction, and the unlocking function is completed.

[0014] Optionally, in the bidirectional automobile door lock mechanism, an Ecc unit is further included, the Ecc unit is an electrical unit, and the Ecc unit is installed in the actuator shell.

[0015] The gear and the passive wheel are rotatably installed on the Ecc unit.

[0016] Optionally, in the bidirectional automobile door lock mechanism, the rotation center axes of the passive wheel and the gear are the same, or the rotation center axes of the passive wheel and the gear are different, but the central axis of the rotation shafts of the passive wheel and the gear is coincided.

[0017] Optionally, in the bidirectional automobile door lock mechanism,

[0018] The gear return spring resets the gear in a force-free state after the gear rotates.

[0019] The swing arm reset spring resets the swing arm in a force-free state after the swing arm rotates.

[0020] Optionally, in the bidirectional automobile door lock mechanism, the safety lever has a first eccentric member, and the manual unlocking unit has a second eccentric member.

[0021] Optionally, in the bidirectional automobile door lock mechanism, the coupling rod is provided with a coupling rod spring, which limits the coupling rod in the limiting groove.

[0022] Optionally, in the bidirectional automobile door lock mechanism, the gear is provided with a gear buffer block.

[0023] Optionally, in the bidirectional automobile door lock mechanism, after the arming function and the gear reset are completed, the gear is rotated, if the rotating direction is the same as that during arming, the electric lock body structure is electrically released and unlocked by the electric release rod; if the rotating direction is opposite to that during arming, the unarming function is completed.

[0024] Optionally, in the bidirectional automobile door lock mechanism, the electric lock body structure includes a base plate, a ratchet wheel, a cam fixedly connected with the ratchet wheel, a ratchet wheel rivet, a pawl, a pawl release rod fixedly connected with the pawl, a pawl rivet, and a lock body shell.

[0025] In the bidirectional automobile door lock mechanism, the electric unlocking and the electric unarming are a system, and the electric unlocking and the electric unarming can be simultaneously realized, the performance is safe and reliable, the automobile door lock mechanism is simple and compact in structure, low in cost, and space-saving. BRIEF DESCRIPTION OF DRAWINGS

[0026] FIG. 1 is a schematic view of a core structure of the automobile door lock mechanism according to the embodiment of the present application;

[0027] FIG. 2 is a schematic view of the automobile door lock mechanism according to the embodiment of the present application;

[0028] FIGS. 3-16 are schematic views of the automobile door lock mechanism according to the embodiment of the present application;

[0029] FIGS. 17-19 are arming process diagrams of the automobile door lock mechanism according to the embodiment of the present application;

[0030] FIGS. 20-21 are unlocking process diagrams of the automobile door lock mechanism according to the embodiment of the present application;

[0031] FIGS. 22-25 are unarming process diagrams of the automobile door lock mechanism according to the embodiment of the present application;

[0032] FIG. 26 is an unarming state diagram of the automobile door lock mechanism according to the embodiment of the present application;

[0033] Fig. 27 is a diagram of the insurance state of the automobile door lock mechanism provided by the embodiment of the application.

[0034] Wherein, 11-worm; 12-driving motor; 13-actuator housing; 131-spring foot limiting buckle; 15-ECC unit; 21-gear; 211-first protrusion; 212-protrusion arc surface; 22-gear return spring; 23-passive wheel; 24-gear buffer block; 25-swing arm; 26-swing arm return spring; 27-safety lever; 28-first eccentric member; 31-manual unlocking unit; 311-fixing hole; 312-limiting groove; 33-coupling rod; 331-third protruding column; 34-coupling rod spring; 38-circular shaft; 39-second eccentric member; 41-safety pull rod; 411-first protruding column; 412-second driving mechanism driving point; 51-electric release release lever; 511-circular arc surface; 110-counterclockwise direction; 120-clockwise direction. DETAILED DESCRIPTION

[0035] The specific embodiments of the application will be described in more detail below with reference to the accompanying drawings. The advantages and features of the application will be more apparent from the following description. It should be noted that the drawings are very simplified and all use non-precise proportions, only to facilitate, clearly assist in the purpose of illustrating the embodiments of the application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only to facilitate the description of the present application and simplify the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] With the development of the automobile market, the requirements of automation and intelligence of the automobile opening and closing system are gradually improved, the automation, lightweight and functional modularization of the side door are gradually improved, and the electric opening and closing of the door becomes a standard configuration of the side door lock. In the prior art, the electric unlocking and the electric unlocking of the insurance are controlled by independent motors respectively, the electric unlocking is a small system, the electric unlocking of the insurance is a small system, the structure is complex, the cost is high, and the occupied volume is large.

[0038] In order to solve the problems in the prior art, the application provides a bidirectional motion automobile door lock mechanism, as shown in Figures 1-16, comprising: an actuator shell 13, wherein a driving motor 12, a worm 11, a gear 21, a passive wheel 23, a first protrusion 211, an electric opening release rod 51, a gear return spring 22, a bumper 27, an insurance pull rod 41, a swing arm 25, a swing arm return spring 26, a coupling rod 33, a manual unlocking unit 31, an electric lock body structure and an ECC unit 15 are arranged in the actuator shell 13; wherein the ECC unit 15 is an electrical unit, and the gear 21 and the passive wheel 23 are rotatably installed on the ECC unit 15; the electric lock body structure comprises a base plate, a ratchet wheel, a cam fixedly connected with the ratchet wheel, a ratchet wheel rivet, a pawl, a pawl release rod fixedly connected with the pawl, a pawl rivet and a lock body shell.

[0039] Preferably, the gear 21 is provided with a gear buffer block 24, which can be assembled on the gear 21 as an independent part, so that the mold is simple and detection is difficult; or the gear buffer block 24 can be injected on the gear 21 through secondary injection, so that the mold is complex and the stability is high.

[0040] The gear return spring 22 resets the gear 21 in a force-free state after the gear 21 rotates; and the swing arm return spring 26 resets the swing arm 25 in a force-free state after the swing arm 25 rotates. The bumper 27 has a first eccentric member 28, and the manual unlocking unit 31 has a second eccentric member 39, and the eccentric members are used to ensure that the structure can be in a stable state.

[0041] The driving motor 12 drives the worm 11 to rotate, the worm 11 drives the gear 21 to rotate, the gear 21 drives the electric opening release rod 51 to rotate, and the electric opening release rod 51 is provided with a circular arc surface 511.

[0042] The passive wheel 23 is an annular structure with a notch, the first protrusion 211 slides in a circumferential track between the inner and outer circumferences of the annular structure, and the first protrusion 211 is always in the notch of the passive wheel 23; when the gear 21 rotates, the first protrusion 211 rotates and pushes the passive wheel 23 to rotate in the notch; further, the rotation center axes of the passive wheel 23 and the gear 21 are the same or different, but the central axis of the rotation shafts of the passive wheel 23 and the gear 21 coincides. Specifically, when the rotation center axes are different, the installation mode is as follows: the actuator shell 13 is provided with a shaft sleeve, the central axis of the shaft sleeve coincides with the central axis of the rotation shaft of the gear 21, and the passive wheel 23 is installed on the shaft sleeve.

[0043] Preferably, the outer circumferential surface radius of the annular structure is equal to or slightly greater than that of the first protrusion 211, and the two sides of the first protrusion 211 close to the outer circumferential surface are symmetrically beveled, facilitating the sliding of the second end of the swing arm 25 onto the outer circumferential surface of the first protrusion 211.

[0044] As shown in FIGS. 5 and 6, the gear return spring 22 is installed on the actuator housing 13, the moving leg of the spring is limited at the spring foot limiting buckle 131, and an initial installation torque is provided, which can ensure the return of the gear 21. The gear 21 rotates counterclockwise under the drive of the driving motor 12 and the worm 11, the protruding circular surface 212 of the gear 21 pushes the gear return spring 22, the gear 21 is limited on the ECC unit 15, and the energy accumulated by the gear return spring 22 reaches the maximum; at this time, the motor is powered off, the energy accumulated by the gear return spring 22 is released, the spring leg of the gear return spring 22 pushes the protruding circular surface 212 of the gear 21, and the gear 21 is pushed back to the initial position; at this time, the spring leg of the gear return spring 22 is limited at the spring foot limiting buckle 131, and the initial installation torque is maintained.

[0045] The swing arm 25 has opposite first and second ends, the first end is fixed to a fixed shaft on the bumper 27, and the second end rotates around the fixed shaft, the second end is located in the gap or slides onto the annular structure of the driven wheel 23 as the driven wheel 23 rotates; in the process of sliding the second end onto the annular structure of the driven wheel 23, the swing arm 25 contacts the limiting column on the bumper 27, and as the second end completely slides onto the annular structure of the driven wheel 23, the bumper 27 is driven to rotate around the rotation shaft by the limiting column;

[0046] The safety pull rod 41 is T-shaped, the first and second protruding columns are arranged at the horizontal part of the T-shaped safety pull rod 41; the first protruding column 411 is located in the tail end groove of the bumper 27, the rotation direction of the tail end groove is opposite to that of the limiting column, and the bumper 27 drives the safety pull rod 41 to move;

[0047] The manual unlocking unit 31 is rotatably installed in the actuator housing 13 through a circular shaft 38, and the manual unlocking unit 31 is provided with a limiting groove 312 and a fixed hole 311;

[0048] The coupling rod 33 is rotatably installed in the fixed hole 311, the coupling rod 33 has a clamping hole and a third protruding column 331, the second protruding column is clamped in the clamping hole, and when the safety pull rod 41 moves, the coupling rod 33 rotates around the fixed hole 311, so that the coupling rod 33 is limited in or out of the limiting groove 312, and the third protruding column 331 is coincided with or offset from the circular surface 511, and the coincidence means unlocking, and the offset means locking.

[0049] When the mechanism is in the unlocking state, the gear 21 continues to rotate in the clockwise direction, and the unlocking function is completed. When the gear 21 completes the locking function or simultaneously completes the locking and unlocking functions, the gear 21 rotates in the opposite direction of the clockwise direction, and the unlocking function is completed.

[0050] In one embodiment, the coupling rod 33 is provided with a coupling rod spring 34, which limits the coupling rod 33 in the limiting groove 312. If the coupling rod spring 34 exists, the coupling rod 33 is limited in the limiting groove 312 by the coupling rod spring 34, and if the coupling rod spring 34 does not exist, the driving second driving mechanism driving point 412 moves the locking pull rod 41, so that the coupling rod 33 is limited in the limiting groove 312.

[0051] Referring to FIGS. 17-19 and 27, the locking process is as follows: the driving motor 12 drives the worm 11, which further drives the gear 21 to move in the counterclockwise direction 110; at the same time, the gear 21 drives the first protrusion 211 to rotate, thereby driving the driven wheel 23 to move; the driven wheel 23 drives the swing arm 25 to move, and the swing arm 25 rotates around the fixed shaft on the locking rod 27. After a certain angle, it contacts with the limiting column of the locking rod 27, further drives the locking rod 27 to move, and the tail end groove of the locking rod 27 is connected with the first protruding column 411 on the locking pull rod 41, drives the locking pull rod 41 to move, and the second protruding column on the locking pull rod 41 drives the coupling rod 33 to rotate around the fixed hole 311 of the manual unlocking unit 31, so that the third protruding column 331 of the coupling rod 33 is staggered with the arc surface 511 of the electric unlocking release rod 51, thereby disconnecting the transmission connection between the manual unlocking unit 31 and the electric unlocking release rod 51, and realizing the locking function.

[0052] Continuing to refer to FIGS. 20-21, at this time, the lock is in the locking position, the gear 21 continues to move in the counterclockwise direction 110, drives the electric unlocking release rod 51 to push the release mechanism of the electric lock body structure, and the lock body is unlocked. At this time, the mechanism has completed the locking and unlocking. Further, because the arc surface on the gear 21 and the arc surface of the electric unlocking release rod 51 have a certain gap at the initial position (so that the two arc surfaces in FIGS. 17-19 are in a non-contact state), only after the gear 21 rotates to a certain angle, the two arc surfaces will be in contact, so that the electric unlocking release rod 51 begins to rotate, and pushes the release mechanism of the electric lock body structure.

[0053] In one embodiment, after the completion of the insurance function and gear 21 reset, the gear 21 is rotated, if the same direction of rotation as the rotation direction when the insurance (i.e. counterclockwise direction 110), then the electric release lever 51 on the electric lock structure for electric release unlocking; specifically, the drive motor 12 of the automobile door lock mechanism gear 21 according to clockwise direction 120 movement, while the gear 21 drive first protrusions 211 rotating to drive the passive wheel 23 movement, swing arm 25 in the passive wheel 23 outer surface sliding, when the gear 21 to limit point, the motor stop power, gear 21 in gear reset spring 22 driven to return to the initial state, the first protrusions 211 also return to the initial state. At this time reference to Figure 24, swing arm 25 is the notch end of the passive wheel 23 to stop, swing arm 25 and the stop column of the insurance bar 27 contact and keep the insurance bar 27 position unchanged, at this time the automobile door lock mechanism locking function is restored, the insurance is still in the insurance position, at this time the automobile door lock mechanism for the next movement is ready, if the gear 21 according to the counterclockwise direction 110 movement to achieve the unlocking function, the insurance state does not change. If the gear 21 rotation direction is opposite to the rotation direction when the insurance (i.e. clockwise direction 120), then complete the insurance function.

[0054] With reference to Figures 22-26, Figure 23 is the limit position of the electric reset (i.e. drive motor power state); Figure 24 is the gear reset spring 22 driven gear 21 reset to the initial position after the electric reset power off (i.e. drive motor power state). In Figure 25, the drive motor 12 again gear 21 and gear buffer block 24 according to clockwise direction 120 movement, the first protrusions 211 on the gear 21 will touch the swing arm 25 of the inclined surface, drive the insurance bar 27 movement, the tail end groove of the insurance bar 27 and the first protrusions 411 on the insurance pull rod 41 connection, drive the insurance pull rod 41 movement, while the coupling rod 33 around the manual unlocking unit 31 fixed hole 311 rotation and limit in the manual unlocking unit 31 limit slot 312, the third protrusions 331 on the coupling rod 33 and the circular surface 511 of the electric release lever 51 overlap in space, so as to restore the transmission connection between the manual unlocking unit 31 and the electric release lever 51, realize the function of the insurance. As shown in Figure 17, the motor stop power, gear 21 in gear reset spring 22 driven to return to the initial state, the first protrusions 211 also return to the initial state, at this time the automobile door lock mechanism to complete the insurance.

[0055] In summary, in the bidirectional motion of the automobile door lock mechanism provided by the present application, the electric unlocking and electric insurance is a system, which can realize electric unlocking and electric insurance at the same time, and has safe and reliable performance. The automobile door lock mechanism of the present application has simple and compact structure, low cost and saves space.

[0056] The above merely describes the preferred embodiments of the present application and does not limit the present application in any way. Any person skilled in the art can make any form of equivalent replacement or modification to the technical solutions and technical contents disclosed by the present application without departing from the scope of the technical solutions of the present application, and such changes still belong to the protection scope of the present application.

Claims

1. A two-way movement automotive door lock mechanism, characterized by, It includes: The actuator housing is provided with a drive motor, a worm, a gear, a passive wheel, a first protrusion, an electric release lever, a gear return spring, a bumper, an insurance pull rod, a swing arm, a swing arm return spring, a coupling rod, a manual unlocking unit and an electric lock body structure; The drive motor drives the worm to rotate, the worm drives the gear to rotate, the gear drives the electric release lever to rotate, and the electric release lever is provided with a circular surface; The passive wheel is an annular structure with a notch, the first protrusion slides in a circumferential track between the inner and outer circumferences of the annular structure, and the first protrusion is always in the notch of the passive wheel; The gear rotates to drive the first protrusion to rotate, and the first protrusion pushes the passive wheel to rotate in the notch; The swing arm has opposite first and second ends, the first end is fixed to a fixed shaft on the bumper, and the second end rotates around the fixed shaft, the second end is located in the notch or slides onto the annular structure of the passive wheel with the rotation of the passive wheel; in the process of sliding the second end onto the annular structure of the passive wheel, the swing arm contacts the limiting column on the bumper, and with the complete sliding of the second end onto the annular structure of the passive wheel, the limiting column drives the bumper to rotate around its rotating shaft; The insurance pull rod is T-shaped, the T-shaped horizontal part of the insurance pull rod is provided with a first protruding column and a second protruding column; the first protruding column is located in the tail end groove of the bumper, the rotating direction of the tail end groove is opposite to that of the limiting column, and the bumper drives the movement of the insurance pull rod; The manual unlocking unit is rotatably installed in the actuator housing through a circular shaft, and the manual unlocking unit is provided with a limiting groove and a fixing hole; The coupling rod is rotatably installed in the fixing hole, the coupling rod has a clamping hole and a third protruding column, the second protruding column is clamped in the clamping hole, and when the insurance pull rod moves, the coupling rod rotates around the fixing hole to make the coupling rod be limited in or out of the limiting groove, and also make the third protruding column coincide with or deviate from the circular surface; when they coincide, the insurance is released; when they deviate, the insurance is set; When the insurance is released, the gear continuously rotates in the setting direction, and then the setting and unlocking functions are completed in sequence; when the gear completes the setting function or the setting and unlocking functions at the same time, the gear rotates in the opposite direction of the setting direction, and the releasing function is completed.

2. The two-way motion automotive door lock mechanism of claim 1, wherein It also includes an Ecc unit, the Ecc unit is an electrical unit, and the Ecc unit is installed in the actuator housing; The gear and the passive wheel are rotatably installed on the Ecc unit.

3. The two-way motion automotive door lock mechanism of claim 1, wherein The rotating center axes of the passive wheel and the gear are the same, or the rotating center axes of the passive wheel and the gear are different, but the central axes of the rotating shafts of the passive wheel and the gear coincide.

4. The bidirectional motion automobile door lock mechanism of claim 1, wherein The gear return spring returns the gear to the original position when the gear is not under force; The swing arm return spring returns the swing arm to the original position when the swing arm is not under force.

5. The two-way motion automotive door lock mechanism of claim 1, wherein, The bumper has a first eccentric member, and the manual unlocking unit has a second eccentric member.

6. The two-way moving automotive door lock mechanism according to claim 1, wherein The coupling rod is provided with a coupling rod spring, which limits the coupling rod in the limiting groove.

7. The two-way moving automotive door lock mechanism according to claim 1, wherein The gear is provided with a gear buffer block.

8. The two-way moving automotive door lock mechanism according to claim 1, wherein After the arming function and the gear reset are completed, the gear is rotated, if the rotating direction is the same as that when arming, the electric lock body structure is electrically released and unlocked by the electric release rod; if the rotating direction is opposite to that when arming, the disarming function is completed.

9. The two-way moving automotive door lock mechanism according to claim 1, wherein The electric lock body structure comprises a base plate, a ratchet wheel, a cam fixedly connected with the ratchet wheel, a ratchet wheel rivet, a pawl, a pawl release rod fixedly connected with the pawl, a pawl rivet and a lock body shell.

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