CN210118020U - Self-absorption lock for automobile tail door - Google Patents
Self-absorption lock for automobile tail door Download PDFInfo
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- CN210118020U CN210118020U CN201920775660.5U CN201920775660U CN210118020U CN 210118020 U CN210118020 U CN 210118020U CN 201920775660 U CN201920775660 U CN 201920775660U CN 210118020 U CN210118020 U CN 210118020U
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Abstract
The utility model discloses a self-absorption lock of an automobile tail gate, which comprises a lock body, a driving component, a triggering component and a lock catch component; the lock catch assembly comprises a lock hook and a pawl, a first lock notch, a second lock notch and a lock locking part are arranged on the circumferential surface of the lock hook, and a clamping part and an unlocking part are arranged on the pawl; the driving assembly comprises a driving motor and a worm and gear mechanism, a transmission shaft is coaxially arranged on a worm wheel of the worm and gear mechanism, a transmission gear is arranged on the transmission shaft, a balance wheel is arranged at the transmission gear, the balance wheel comprises a meshing part and a connecting lever, and the power end of the connecting lever is connected with the meshing part of the balance wheel; the trigger assembly comprises a locking lever and an unlocking lever, the power end of the locking lever is fixedly connected with the power end of the connecting lever relatively, the resistance end of the locking lever is located on the right side of the locking portion, and the power end of the unlocking lever is provided with a protruding portion and an unlocking rod. The utility model discloses a car tail-gate is from inhaling use cost low of lock, and occupation space is little, and light in weight just can effectively reduce the energy consumption.
Description
Technical Field
The utility model discloses the technique relates to auto-parts technical field specifically is a car tail-gate is from inhaling lock.
Background
Automotive tailgate systems typically include an electric strut, a self-priming lock, and a BCM (body control module). The self-priming lock mainly comprises a lock body, a lock catch and a driving mechanism; the lock body is the main part of the door lock and is generally arranged on the door of the automobile; a shackle (sometimes also referred to as a shackle) as the part that mates with the lock body, typically mounted on the vehicle body in correspondence with the lock body; the drive mechanism is a transmission member for transmitting motion and force such as key unlocking and handle unlocking.
At present, a tail gate self-suction lock mostly adopts a split structure, the locking and unlocking functions are realized by driving the locking hook and the pawl to be matched through two motors, and the running states of the two motors are realized by driving through a BCM (binary coded decimal machine); when a user sends a door closing signal (a remote control key, a central control button and a tail door button), the BCM receives the signal, the electric stay bar works to enable the vehicle door to drive the lock hook and the pawl to rotate to a half-lock state, then the BCM controls one of the motors to work, and then the lock hook and the pawl are driven to operate to a full-lock state; when a user sends a door opening signal (a remote control key, a central control button and a tail door button), the BCM receives the signal and drives the other motor to work, so that the lock hook and the pawl run to a full-open state, and half locking, full locking and full opening of the self-priming lock are realized. However, this structure has problems that: the two motors are high in use cost and large in occupied space, so that the whole self-suction lock is heavy in weight and large in energy consumption.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model discloses the technical problem that needs to solve is: how to provide a low use cost, occupation space is little, light in weight and can effectively reduce the car tail-gate from inhaling lock of energy consumption.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a self-absorption lock of an automobile tail door comprises a lock body, a driving assembly, a triggering assembly and a lock catch assembly, wherein the driving assembly, the triggering assembly and the lock catch assembly are installed on the lock body;
the lock catch assembly comprises a lock hook and a pawl, the lock hook is rotatably connected to the lock body, a first locking opening, a second locking opening and a locking part are arranged on the peripheral surface of the lock hook, the second locking opening is arranged above the first locking opening, the locking part can be in contact with the trigger assembly, the pawl is positioned on the right side of the lock hook, and the pawl is provided with a clamping part which can be embedded into the first locking opening and the second locking opening and an unlocking part which can be in contact with the trigger assembly;
the driving assembly comprises a driving motor and a worm and gear mechanism connected with the driving motor, a worm of the worm and gear mechanism is connected with a rotating shaft of the driving motor, a transmission shaft is coaxially arranged on a worm gear of the worm and gear mechanism, a transmission gear is arranged on the transmission shaft, the balance wheel further comprises a balance wheel, the balance wheel comprises a meshing part and a connecting lever, a fulcrum of the connecting lever is rotatably connected to the lock body, a power end of the connecting lever is connected with the meshing part of the balance wheel, and the balance wheel is meshed with the transmission gear through the meshing part;
the trigger assembly comprises a locking lever and an unlocking lever positioned on the right side of the locking lever, the fulcrum of the locking lever is rotatably connected to the lock body, the power end of the locking lever is relatively and fixedly connected with the power end of the connecting lever, the resistance end of the locking lever is positioned on the right side of the locking part, the resistance end of the locking lever can be abutted against the locking hook when the balance wheel rotates in the forward direction and enables the first locking opening of the locking hook to rotate towards the direction close to the clamping part of the pawl, the fulcrum of the unlocking lever is rotatably connected to the lock body, the power end of the unlocking lever is provided with a bulge locking lever and an unlocking lever, the bulge of the bulge faces towards the resistance end of the connecting lever and can be contacted with the resistance end of the connecting lever when the balance wheel rotates in the reverse direction, and the unlocking lever is positioned on the left side of the unlocking part, the unlocking rod can abut against the pawl when the balance wheel rotates reversely, and enables the clamping part of the pawl to rotate in a first lock opening direction far away from the lock body.
In the scheme, the rotation of the balance wheel from left to right is defined as the positive rotation of the balance wheel, the rotation of the balance wheel from right to left is defined as the negative rotation of the balance wheel, and the positive rotation and the negative rotation of the balance wheel are realized by the positive rotation and the negative rotation of the driving motor; when the driving motor rotates forwards, the driving motor drives the worm wheel to rotate through the worm, the worm wheel drives the transmission shaft which is coaxial with the worm wheel to rotate simultaneously, and the transmission shaft drives the balance wheel to rotate forwards from left to right through the transmission gear while rotating; when the driving motor rotates reversely, the balance wheel is driven to rotate reversely from right to left.
The implementation of the half-lock state is prior art:
when a user sends a door closing signal (a remote control key, a central control button and a tail door button), the automobile body control module receives the door closing signal, the electric stay rod works to pull the automobile door, the automobile door pulls the lock hook and the pawl to rotate around respective riveting points, so that the second lock opening on the lock hook is close to the clamping part of the pawl until the clamping part of the pawl is embedded into the second lock opening, and the self-suction lock is in a semi-lock state.
The full locking state:
when the electric stay bar pulls the car door to realize a half-locking state of the self-absorption lock, the car body control module controls the driving motor to rotate positively, the balance wheel rotates from left to right under the action of the driving motor, the power end of the connecting lever also rotates from left to right while the balance wheel rotates, and as the power end of the locking lever is relatively fixedly connected with the power end of the connecting lever, the resistance end of the locking lever rotates from right to left around the fulcrum, the resistance end of the locking lever contacts with the locking part on the left side of the locking lever when rotating towards left, the resistance end of the locking lever drives the lock hook to rotate leftwards around the riveting point through the locking part, namely the second lock opening on the lock hook is separated from the clamping part on the pawl and enables the first lock opening to be close to the clamping part, and when the first lock opening on the lock hook rotates to the position of the clamping part, the clamping part is embedded into the first lock opening on the lock hook, the full locking state of the self-suction lock is realized; after the full locking is completed, the vehicle body control module controls the driving motor to rotate reversely, and the balance wheel rotates reversely to return to the initial position.
A fully open state:
when a user sends a door opening signal (a remote control key, a central control button and a tail door button), a vehicle body control module controls a driving motor to rotate reversely according to the received signal, the driving motor rotates reversely to drive a balance wheel to rotate from right to left, at the moment, a resistance end of a connecting lever rotates from left to right, when the resistance end of the connecting lever rotates right, the resistance end of the connecting lever is contacted with a convex part of an unlocking lever on the right side of the connecting lever, when the resistance end of the connecting lever continuously rotates right, a power end of the unlocking lever rotates right around a fulcrum, when the power end of the unlocking lever rotates right, an unlocking rod connected with the power end of the unlocking lever is contacted with an unlocking part on the right side of the unlocking lever, the unlocking rod on the power end of the unlocking lever continuously rotates right, the unlocking part also rotates right to drive a pawl to rotate right around a riveting point, at the moment, a clamping part on the pawl sequentially winds out from a first locking opening and, and releasing the lock catch from the meshing position to realize the full-open state of the self-suction lock, opening the tail gate, and controlling the driving motor to rotate positively by the vehicle body control module after the tail gate is opened, so that the balance wheel rotates positively to return to the initial position.
The beneficial effects of the utility model reside in that:
1. the utility model discloses an ingenious structural design utilizes a driving motor's corotation and reversal to drive balance reciprocating motion, controls the cooperation between latch hook and the pawl through balance reciprocating motion, from the function of closing and opening of inhaling of lock from this realization.
2. The utility model discloses compare with the current structure that adopts two motors from the lock, owing to removed a motor and the box body that corresponds, drive gear and the isotructure of acting as go-between, consequently this scheme from the lock use cost low, occupation space is little, light in weight and can effectively reduce the energy consumption.
3. The utility model discloses a single motor car tail-gate is from inhaling keying constructs owing to reduced a motor and the control unit, and weight reduction is about 600 grams, has practiced thrift the energy consumption, has made the contribution for the lightweight of vehicle.
Preferably, the lock body is further provided with a lock hook position sensor, a pawl position sensor and a balance wheel position sensor at positions corresponding to the lock hook, the pawl and the balance wheel, and the lock hook position sensor, the pawl position sensor and the balance wheel position sensor are all in data transmission connection with the vehicle body control module.
Therefore, the position information of the lock hook, the pawl and the balance wheel is respectively transmitted to the vehicle body control module by arranging the lock hook position sensor, the pawl position sensor and the balance wheel position sensor, and the vehicle body control module can more accurately control the driving motor.
When the vehicle is in a half-locking state, the lock hook position sensor and the pawl position sensor output the position information of the lock hook and the pawl to the vehicle body control module, and the vehicle body control module continuously enables the driving motor to rotate forwards until the vehicle is in a full-locking state; after the full locking is finished, the lock hook position sensor, the pawl position sensor and the balance wheel position sensor respectively output the position information of the lock hook, the pawl and the balance wheel to the vehicle body control module, and the vehicle body control module controls the driving motor to reversely rotate to drive the balance wheel to return to the initial position; after the self-priming lock is completely opened, the lock hook position sensor, the pawl position sensor and the balance wheel position sensor respectively output the position information of the lock hook, the pawl and the balance wheel to the vehicle body control module, and the vehicle body control module controls the driving motor to rotate positively to drive the balance wheel to return to the initial position.
Preferably, the lock body is further provided with a limit pin, and the right end face of the balance wheel is in contact with the limit pin when the clamping portion is embedded into the first locking notch.
Therefore, when the clamping part is embedded into the first locking notch, the right end face of the balance wheel is abutted against the limiting pin, so that the balance wheel does not continuously rotate rightwards any more, and the full lock of the self-priming lock is completed.
Preferably, the unlocking lever with the cover is equipped with first reset spring on the connecting piece of lock body rotatable coupling department, first reset spring's both ends are connected respectively the connecting piece with on the unlocking lever.
Therefore, when the self-priming lock is in a fully-opened state, the vehicle body control module drives the driving motor to rotate forwardly to enable the balance wheel to return to the initial position, the connecting lever returns to the initial position under the action of the balance wheel, at the moment, the acting force of the resistance end of the connecting lever on the power end of the unlocking lever disappears, the unlocking lever returns to the initial position under the action of the first reset spring, and the self-priming lock can work normally after a user sends a door opening signal next time.
Preferably, a plurality of lightening holes are formed in the power end of the connecting lever, and an arc-shaped chamfer is arranged at the joint of the power end of the connecting lever and the meshing part.
Like this, establish a plurality of lightening holes under the prerequisite of guaranteeing to connect the lever atress to can further reduce whole self-priming lock's weight, simultaneously, the arc chamfer is established with the department of meeting of meshing portion to the power end of connecting the lever, because the width of connecting the lever and meshing portion differs greatly, thereby it concentrates the emergence rupture phenomenon to produce stress concentration easily in both department of meeting, through setting up the arc chamfer, can effectively disperse the effort of department of meeting, reduces stress concentration and rupture phenomenon's emergence.
Preferably, the lock body is further provided with a guide limiting hole, the resistance end of the unlocking lever extends into the guide limiting hole and can slide in the guide limiting hole, and the resistance end of the unlocking lever is in a self-suction lock full-open state and in a free state of the unlocking lever and is respectively contacted with two sides of the guide limiting hole.
Therefore, the guide limiting hole is arranged to guide and limit the position of the movement of the unlocking lever, when the self-priming lock is completely opened, the resistance end of the unlocking lever is in contact with one side of the guide limiting hole to limit the position, and the position of the balance wheel is limited under the action of the unlocking lever, so that the continuous reverse rotation of the balance wheel after the full opening is avoided; after the balance wheel drives the connecting lever to return to the initial position after being fully opened, the unlocking lever is reset to the position contacted with the other side of the guide limiting hole under the action of the first reset spring, so that the unlocking lever can be reset to the same position every time under the action of the guide limiting hole, and the reliable operation of the self-priming lock is ensured.
Preferably, the unlocking rod is of an inverted U shape with a downward opening, one end of the inverted U-shaped opening of the unlocking rod is connected with the power end of the unlocking lever, the other end of the inverted U-shaped opening of the unlocking rod can be in contact with the unlocking part, and the resistance end of the locking lever can extend into the inverted U-shaped opening of the unlocking rod.
Like this, through setting the unblock pole to the decurrent type of falling U structure of opening to make the resistance end of locking lever can stretch into in this opening, because at the in-process of locking, the resistance end of locking lever can move to the direction of unblock pole, like this, the opening through the unblock pole provides the space for the removal of the resistance end of locking lever, thereby can shorten the distance of arranging between unblock pole and the locking lever, realize from the miniaturized design of inhaling the lock.
Preferably, the lower side of the locking hook is further connected with a second return spring which can enable the first locking opening of the locking hook to rotate in the direction away from the clamping portion, and two ends of the second return spring are respectively connected to the locking hook and the lock body.
Thus, when the self-priming lock is in a full-open state, the second return spring drives the lock hook to rotate, so that the lock hook is completely released from the meshing position.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a rear view of the lock body of FIG. 1 with the lock body removed;
FIG. 3 is a schematic structural view of the embodiment of the present invention in a half-locked state;
FIG. 4 is a schematic structural view of the fully locked state according to the embodiment of the present invention;
FIG. 5 is a schematic structural view of the fully open state according to the embodiment of the present invention;
fig. 6 is a top view of fig. 5.
Description of reference numerals: the lock body 1, the latch hook 21, the second latch opening 211, the first latch opening 212, the locking portion 213, the pawl 22, the snap-in portion 221, the unlocking portion 222, the second return spring 23, the driving motor 31, the worm 32, the worm wheel 33, the balance 34, the connecting lever 341, the transmission gear 35, the locking lever 41, the unlocking lever 42, the protrusion 421, the unlocking lever 422, the first return spring 43, the stopper pin 44, the balance position sensor 45, the latch hook position sensor 46, and the pawl position sensor 47.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the self-priming lock for the automobile tail gate comprises a lock body 1, and a driving assembly, a triggering assembly and a lock catch assembly which are arranged on the lock body 1;
the locking assembly comprises a locking hook 21 and a pawl 22 which are rotatably connected to the lock body 1, a first locking port 212, a second locking port 211 above the first locking port 212 and a locking part 213 which can be contacted with the trigger assembly are arranged on the peripheral surface of the locking hook 21, and the pawl 22 is positioned on the right side of the locking hook 21 and is provided with a clamping part 221 which can be embedded into the first locking port 212 and the second locking port 211 and an unlocking part 222 which can be contacted with the trigger assembly;
the driving assembly comprises a driving motor 31 and a worm and gear mechanism connected with the driving motor 31, a worm 32 of the worm and gear mechanism is connected with a rotating shaft of the driving motor 31, a transmission shaft is coaxially arranged on a worm gear 33 of the worm and gear mechanism, a transmission gear 35 is arranged on the transmission shaft, a balance wheel 34 meshed with the transmission gear 35 is arranged at the transmission gear 35, the balance wheel 34 comprises a meshing part and a connecting lever 341, the fulcrum of the connecting lever 341 is rotatably connected on the lock body 1, the power end of the connecting lever 341 is connected with the meshing part of the balance wheel 34, and the balance wheel 34 is meshed with the transmission gear 35 through the meshing part;
the trigger assembly comprises a locking lever 41 and an unlocking lever 42 positioned on the right side of the locking lever 41, the fulcrum of the locking lever 41 is rotatably connected to the lock body 1, the power end of the locking lever 41 is relatively and fixedly connected with the power end of the connecting lever 341, the resistance end of the locking lever 41 is positioned on the right side of the locking part 213, the resistance end of the locking lever 41 can abut against the locking hook 21 when the balance 34 rotates in the forward direction and enables the first locking port 212 of the locking hook 21 to rotate in the direction close to the clamping part 221 of the pawl 22, the fulcrum of the unlocking lever 42 is rotatably connected to the lock body 1, as shown in fig. 6, the power end of the unlocking lever 42 is provided with a convex part 421 and an unlocking rod 422, the convex part of the convex part 421 faces the resistance end of the connecting lever 341 and can contact with the resistance end of the connecting lever 341 when the balance 34 rotates in the reverse direction, the unlocking rod 422 is positioned on the left side of the unlocking rod 222, and the unlocking rod 422 can abut against the pawl 22 and enables the clamping part 221 of the pawl The first locking notch 212 of the body 1 is rotated.
In the present embodiment, it is defined that rotation of balance 34 from left to right is rotation of balance 34 in the forward direction, rotation of balance 34 from right to left is rotation of balance 34 in the reverse direction, and the forward rotation and the reverse rotation of balance 34 are realized by forward rotation and reverse rotation of drive motor 31; when the driving motor 31 rotates forwards, the driving motor 31 drives the worm wheel 33 to rotate through the worm 32, the worm wheel 33 drives the transmission shaft which is coaxial with the worm wheel 33 to rotate, and the transmission shaft drives the balance wheel 34 to rotate forwards from left to right through the transmission gear 35; when the driving motor 31 rotates reversely, the balance 34 is driven to rotate reversely from right to left.
The implementation of the half-lock state is prior art:
when a user sends a door closing signal (a remote control key, a central control button and a tail door button), the vehicle body control module receives the door closing signal, the electric stay rod works to pull the vehicle door, the vehicle door pulls the lock hook 21 and the pawl 22 to rotate around respective riveting points, so that the second lock notch 211 on the lock hook 21 is close to the clamping part 221 of the pawl 22 until the clamping part 221 of the pawl 22 is embedded into the second lock notch 211, and thus, a half-locking state of the self-suction lock is realized, and the structure in the half-locking state is shown in the attached drawing 3.
The full locking state:
when the electric stay pulls the car door to achieve the semi-locked state of the self-priming lock, the car body control module controls the driving motor 31 to rotate forward, the balance 34 rotates from left to right under the action of the driving motor 31, while the balance 34 rotates, the power end of the connecting lever 341 also rotates from left to right, because the power end of the locking lever 41 is relatively fixedly connected with the power end of the connecting lever 341, the resistance end of the locking lever 41 rotates from right to left around the fulcrum, when the resistance end of the locking lever 41 rotates to left, the resistance end of the locking lever 41 contacts with the locking part 213 on the left side, when the resistance end of the locking lever 41 continuously rotates to left, the resistance end of the locking lever 41 drives the lock hook 21 to rotate to left around the riveting point through the locking part 213, namely, at this time, the second lock port 211 on the lock hook 21 is separated from the clamping part 221 on the pawl 22 and the first lock port 212 is close to the clamping part 221, when the first lock port 212 on the lock hook 21 rotates to the position of the, the clamping portion 221 is embedded into the first lock opening 212 of the lock hook 21, so as to realize a full lock state of the self-priming lock, and the structure in the full lock state is shown in fig. 4; after the full locking is completed, the vehicle body control module controls the driving motor 31 to rotate reversely, and the balance wheel 34 rotates reversely to return to the initial position.
A fully open state:
when a user sends out a door opening signal (a remote control key, a middle control button and a tail door button), the vehicle body control module controls the driving motor 31 to rotate reversely according to the received signal, the driving motor 31 rotates reversely to drive the balance 34 to rotate from right to left, at the moment, the resistance end of the connecting lever 341 rotates from left to right, when the resistance end of the connecting lever 341 rotates rightwards, the resistance end of the connecting lever 341 contacts with the convex part 421 of the unlocking lever 42 on the right side of the connecting lever 341, when the resistance end of the connecting lever 341 continuously rotates rightwards, the power end of the unlocking lever 42 rotates rightwards around the fulcrum, when the power end of the unlocking lever 42 rotates rightwards, the unlocking rod 422 connected with the power end of the unlocking lever 42 contacts with the unlocking part 222 on the right side, the unlocking rod 422 on the power end of the unlocking lever 42 continuously rotates rightwards, the unlocking part 222 also rotates rightwards and drives the pawl 22 to rotate rightwards around the riveting point, at the moment, the clamping part 221 on the pawl 22 sequentially winds out from the first locking, releasing the lock catch from the engagement position to realize the full open state of the self-suction lock, opening the tail gate, and the structure in the full open state is shown in the attached figure 5; when the tail gate is opened, the vehicle body control module controls the driving motor 31 to rotate forwards again, and the balance wheel 34 rotates forwards and returns to the initial position.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a ingenious structural design utilizes a driving motor 31's corotation and reversal to drive balance 34 reciprocating motion, controls the cooperation between latch hook 21 and the pawl 22 through balance 34's reciprocating motion, from this realization from inhaling of locking closing and the function of opening.
2. The utility model discloses compare with the current structure that adopts two motors from the lock, owing to removed a motor and the box body that corresponds, drive gear 35 and the isotructure of acting as go-between, consequently this scheme from the lock use cost low, occupation space is little, light in weight and can effectively reduce the energy consumption.
3. The utility model discloses a single motor car tail-gate is from inhaling keying constructs owing to reduced a motor and the control unit, and weight reduction is about 600 grams, has practiced thrift the energy consumption, has made the contribution for the lightweight of vehicle.
In the present embodiment, the lock body 1 is further provided with a lock hook position sensor 46, a detent position sensor 47 and a balance wheel position sensor 45 at positions corresponding to the lock hook 21, the detent 22 and the balance wheel 34, respectively, and the lock hook position sensor 46, the detent position sensor 47 and the balance wheel position sensor 45 are all in data transmission connection with the body control module.
In this way, by providing the lock hook position sensor 46, the click position sensor 47, and the balance position sensor 45 to transmit the position information of the lock hook 21, the click 22, and the balance 34 to the vehicle body control module, the vehicle body control module can control the drive motor 31 more accurately.
When in the half-locking state, the lock hook position sensor 46 and the pawl position sensor 47 output the position information of the lock hook 21 and the pawl 22 to the vehicle body control module, and the vehicle body control module continuously enables the driving motor 31 to rotate forwards until the full-locking state; after the full locking is completed, the locking hook position sensor 46, the pawl position sensor 47 and the balance wheel position sensor 45 respectively output the position information of the locking hook 21, the pawl 22 and the balance wheel 34 to the vehicle body control module, and the vehicle body control module controls the driving motor 31 to reversely rotate to drive the balance wheel 34 to return to the initial position; after the self-priming lock is completely opened, the latch hook position sensor 46, the pawl position sensor 47 and the balance wheel position sensor 45 respectively output the position information of the latch hook 21, the pawl 22 and the balance wheel 34 to the vehicle body control module, and the vehicle body control module controls the driving motor 31 to rotate positively to drive the balance wheel 34 to return to the initial position.
In this embodiment, the lock body 1 is further provided with a stopper pin 44, and the right end surface of the balance 34 is in contact with the stopper pin 44 when the click portion 221 is fitted into the first lock notch 212.
Thus, when the click portion 221 is fitted into the first locking notch 212, the right end surface of the balance 34 abuts against the stopper pin 44, so that the balance 34 does not rotate rightward any longer, and the full lock of the self-priming lock is completed.
In this embodiment, a first return spring 43 is disposed on the connecting member at the rotatable connection position of the unlocking lever 42 and the lock body 1, two ends of the first return spring 43 are respectively connected to the connecting member and the unlocking lever 42, and the connecting member may be a rivet when in specific use.
Thus, when the self-priming lock is in a fully open state, the vehicle body control module drives the driving motor 31 to rotate forward to enable the balance wheel 34 to return to the initial position, the connecting lever 341 also returns to the initial position under the action of the balance wheel 34, at the moment, the acting force of the resistance end of the connecting lever 341 on the power end of the unlocking lever 42 disappears, and the unlocking lever 42 returns to the initial position under the action of the first return spring 43, so that the self-priming lock can work normally after a user sends a door opening signal next time.
In this embodiment, the power end of the connecting lever 341 is provided with a plurality of lightening holes, and the joint of the power end of the connecting lever 341 and the engaging portion is provided with an arc-shaped chamfer.
Like this, establish a plurality of lightening holes under the prerequisite of guaranteeing to connect lever 341 atress to can further reduce whole self-priming lock's weight, simultaneously, the arc chamfer is established with the department of meeting of meshing portion to the power end of connecting lever 341, because the width of connecting lever 341 and meshing portion differs greatly, thereby it concentrates the emergence rupture phenomenon to produce stress concentration easily in both department of meeting, through setting up the arc chamfer, can effectively disperse the effort of department of meeting, reduce stress concentration and rupture phenomenon's emergence.
In this embodiment, the lock body 1 is further provided with a guiding limiting hole, the resistance end of the unlocking lever 42 extends into the guiding limiting hole and can slide in the guiding limiting hole, and the resistance end of the unlocking lever 42 is respectively contacted with two sides of the guiding limiting hole when the self-priming lock is in a fully opened state and the unlocking lever 42 is in a free state.
Thus, the guide limit hole is arranged to guide and limit the movement of the unlocking lever 42, when the self-priming lock is completely opened, the resistance end of the unlocking lever 42 is in contact with one side of the guide limit hole to limit the position, and the position of the balance wheel 34 is also limited under the action of the unlocking lever 42, so that the balance wheel 34 is prevented from continuously reversing after being completely opened; after the balance wheel 34 drives the connecting lever 341 to return to the initial position after being fully opened, the unlocking lever 42 is reset to the position contacting with the other side of the guide limiting hole under the action of the first reset spring 43, so that the unlocking lever 42 can be reset to the same position every time under the action of the guide limiting hole, and the reliable operation of the self-priming lock is ensured.
In this embodiment, the unlocking lever is in an inverted U shape with a downward opening, one end of the inverted U shape opening of the unlocking lever is connected with the power end of the unlocking lever 42, the other end of the inverted U shape opening of the unlocking lever can be contacted with the unlocking portion 222, and the resistance end of the locking lever 41 can extend into the inverted U shape opening of the unlocking lever.
Like this, through setting the unblock pole to the downward structure of falling U-shaped of opening to make the resistance end of locking lever 41 can stretch into this opening, because at the in-process of locking, the resistance end of locking lever 41 can move to the direction of unblock pole, like this, the opening through the unblock pole provides the space for the removal of the resistance end of locking lever 41, thereby can shorten the distance of arranging between unblock pole and the locking lever 41, realize from the miniaturized design of inhaling the lock.
In this embodiment, a second return spring 23 is further connected to the lower side of the lock hook 21, and the first locking notch 212 of the lock hook 21 can rotate in a direction away from the locking portion 221, and both ends of the second return spring 23 are connected to the lock hook 21 and the lock body 1, respectively.
Thus, when the self-priming lock is in the fully open state, the second return spring 23 rotates the locking hook 21, so that the locking hook 21 is completely released from engagement.
Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A self-absorption lock of an automobile tail door is characterized by comprising a lock body, a driving component, a triggering component and a lock catch component, wherein the driving component, the triggering component and the lock catch component are arranged on the lock body;
the lock catch assembly comprises a lock hook and a pawl, the lock hook is rotatably connected to the lock body, a first locking opening, a second locking opening and a locking part are arranged on the peripheral surface of the lock hook, the second locking opening is arranged above the first locking opening, the locking part can be in contact with the trigger assembly, the pawl is positioned on the right side of the lock hook, and the pawl is provided with a clamping part which can be embedded into the first locking opening and the second locking opening and an unlocking part which can be in contact with the trigger assembly;
the driving assembly comprises a driving motor and a worm and gear mechanism connected with the driving motor, a worm of the worm and gear mechanism is connected with a rotating shaft of the driving motor, a transmission shaft is coaxially arranged on a worm gear of the worm and gear mechanism, a transmission gear is arranged on the transmission shaft, the balance wheel further comprises a balance wheel, the balance wheel comprises a meshing part and a connecting lever, a fulcrum of the connecting lever is rotatably connected to the lock body, a power end of the connecting lever is connected with the meshing part of the balance wheel, and the balance wheel is meshed with the transmission gear through the meshing part;
the trigger assembly comprises a locking lever and an unlocking lever positioned on the right side of the locking lever, the fulcrum of the locking lever is rotatably connected to the lock body, the power end of the locking lever is relatively and fixedly connected with the power end of the connecting lever, the resistance end of the locking lever is positioned on the right side of the locking part, the resistance end of the locking lever can be abutted against the locking hook when the balance wheel rotates in the forward direction and enables the first locking opening of the locking hook to rotate towards the direction close to the clamping part of the pawl, the fulcrum of the unlocking lever is rotatably connected to the lock body, the power end of the unlocking lever is provided with a bulge locking lever and an unlocking lever, the bulge of the bulge faces towards the resistance end of the connecting lever and can be contacted with the resistance end of the connecting lever when the balance wheel rotates in the reverse direction, and the unlocking lever is positioned on the left side of the unlocking part, the unlocking rod can abut against the pawl when the balance wheel rotates reversely, and enables the clamping part of the pawl to rotate in a first lock opening direction far away from the lock body.
2. The self-priming lock of claim 1, wherein the lock body further comprises a lock hook position sensor, a pawl position sensor and a balance position sensor at positions corresponding to the lock hook, the pawl and the balance, respectively, and the lock hook position sensor, the pawl position sensor and the balance position sensor are in data transmission connection with the body control module.
3. The self-priming lock of claim 1, wherein the lock body further comprises a stop pin, and the right end face of the balance wheel can contact with the stop pin when the engaging portion is inserted into the first locking notch.
4. The self-priming lock for the automobile tail-gate of claim 1, wherein a first return spring is sleeved on a connecting piece at the rotatable connection position of the unlocking lever and the lock body, and two ends of the first return spring are respectively connected to the connecting piece and the unlocking lever.
5. The self-priming lock of claim 1 wherein the power end of the connecting lever has a plurality of lightening holes, and the junction of the power end of the connecting lever and the engaging portion has an arcuate chamfer.
6. The self-priming lock of claim 1, wherein the lock body further has a guiding and limiting hole, the resistance end of the unlocking lever extends into the guiding and limiting hole and can slide in the guiding and limiting hole, and the resistance end of the unlocking lever contacts with both sides of the guiding and limiting hole respectively in the fully open state of the self-priming lock and the free state of the unlocking lever.
7. The self-priming lock of claim 1, wherein the unlocking lever is in a downward opening inverted U shape, one end of the opening of the inverted U shape of the unlocking lever is connected with the power end of the unlocking lever, the other end of the opening of the inverted U shape of the unlocking lever can be contacted with the unlocking part, and the resistance end of the locking lever can extend into the opening of the inverted U shape of the unlocking lever.
8. The self-priming lock of claim 1, wherein a second return spring is further connected to a lower side of the latch hook, the second return spring being capable of rotating the first locking opening of the latch hook in a direction away from the locking portion, and two ends of the second return spring are respectively connected to the latch hook and the lock body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775660.5U CN210118020U (en) | 2019-05-28 | 2019-05-28 | Self-absorption lock for automobile tail door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775660.5U CN210118020U (en) | 2019-05-28 | 2019-05-28 | Self-absorption lock for automobile tail door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118020U true CN210118020U (en) | 2020-02-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920775660.5U Active CN210118020U (en) | 2019-05-28 | 2019-05-28 | Self-absorption lock for automobile tail door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118020U (en) |
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2019
- 2019-05-28 CN CN201920775660.5U patent/CN210118020U/en active Active
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