Integrated self-latching door lock

Abstract

The application relates to an integrated self-suction door lock, belonging to the technical field of automobile door locks, which comprises a bottom shell and a side shell, the bottom shell is provided with a rotating lock tongue and a pawl, the lock tongue is provided with half-locking teeth and full-locking teeth; when the pawl abuts against the half-locking teeth, the vehicle door is in a half-locked state; when the pawl abuts against the full-locking teeth, the vehicle door is in a full-locked state; the bottom shell is provided with a first rotating shaft, the first rotating shaft is provided with a first rotating arm and a first reset member for resetting the first rotating arm, one end of the first rotating arm is provided with a driving arm for driving the lock tongue to rotate from the half-locked state to the full-locked state, the other end is provided with a self-suction pull wire, the side shell is provided with a guide wheel and a pull wire mechanism for pulling the self-suction pull wire, and one end of the self-suction pull wire away from the driving arm is connected with the pull wire mechanism after penetrating through the guide wheel. The application has the effects of reducing installation difficulty and improving installation efficiency.

Description

Technical Field

[0001] This application relates to the field of automotive door locks, and more particularly to an integrated self-closing door lock. Background Technology

[0002] With the development of the automotive industry, users are demanding higher levels of automation in their vehicles. Traditional car door systems require external force to close the door, but if the force is too small, the door may remain partially locked, requiring more force to fully lock it. Some high-end cars use self-closing door locks, which can automatically close and lock the door under specific conditions.

[0003] Chinese patent CN110725623A discloses a self-closing door lock actuator, a self-closing door lock assembly, and a door lock modification method. The self-closing door lock assembly includes a door lock module, a self-closing pull cable, and a self-closing door lock actuator. The two ends of the automatic pull cable are connected to the door lock module and the self-closing door lock actuator, respectively.

[0004] To address the aforementioned technical problems, the inventors believe that installing a door lock requires first installing the door lock module and the self-closing door lock actuator inside the car door, and then connecting the self-closing cable to both the door lock module and the self-closing door lock actuator, which is inconvenient. Furthermore, arranging the self-closing cable inside the car door increases the number of wiring harnesses inside the door, making the overall wiring harness arrangement more difficult. Summary of the Invention

[0005] To address the aforementioned technical issues, this application provides an integrated self-closing door lock.

[0006] This application provides an integrated self-closing door lock, which adopts the following technical solution:

[0007] An integrated self-closing door lock includes a bottom shell and a side shell. The bottom shell has a rotatably mounted latch and a pawl. The latch has a half-lock tooth and a full-lock tooth. When the pawl abuts against the half-lock tooth, the door is in a half-locked state; when the pawl abuts against the full-lock tooth, the door is in a fully locked state. The bottom shell has a first rotating shaft, on which a first rotating arm and a first reset member for resetting the first rotating arm are mounted. One end of the first rotating arm has a drive arm for driving the latch from the half-locked state to the fully locked state, and the other end has a self-closing cable. The side shell has a guide wheel and a cable pulling mechanism for pulling the self-closing cable. The end of the self-closing cable away from the drive arm passes through the guide wheel and is connected to the cable pulling mechanism. When the cable pulling mechanism pulls the self-closing cable, the first rotating arm rotates, causing the drive arm to move towards the latch and push the latch to rotate.

[0008] By adopting the above technical solution, since the self-closing cable and the cable pulling mechanism are both arranged in the housing formed by the bottom shell and the side shell, the interference between the self-closing cable and the wiring harness inside the door can be reduced, thereby reducing the overall difficulty of arranging the wiring harness inside the door. In addition, it is proposed to integrate the cable pulling mechanism into the housing structure. During installation, only the housing mechanism needs to be installed and fixed. There is no need to install the self-closing door lock actuator or connect the self-closing cable to the self-closing door lock actuator, thereby improving the installation efficiency of the door lock.

[0009] Optionally, the cable pulling mechanism includes a first incomplete gear, which is rotatably mounted on the side shell. The first incomplete gear is provided with two locking plates, and a limiting gap is formed between the two locking plates. One end of each locking plate is provided with a hook. The end of the self-suction cable away from the first rotating arm passes through the limiting gap and is provided with a locking element. The two ends of the locking element are respectively locked in the two hooks. The side shell is provided with a first driving assembly that drives the second incomplete gear to rotate.

[0010] By adopting the above technical solution, the first drive component is activated to drive the first incomplete gear to rotate, the first incomplete gear to rotate, the plate to rotate, the plate to rotate, the hook to rotate, and the hook to rotate, thereby achieving the purpose of pulling the self-priming cable.

[0011] Optionally, the first drive assembly includes a first motor and a first worm gear fixed coaxially to the first motor. The first motor is fixed to a side housing. A first worm wheel is rotatably disposed on the side housing. The first worm wheel meshes with the first worm. A first gear is coaxially fixed on the first worm wheel. A second gear is rotatably disposed on the side housing. A third gear is coaxially fixed on the second gear. The number of teeth on the first gear is less than the number of teeth on the second gear. The third gear meshes with a first incomplete gear.

[0012] By adopting the above technical solution, the first motor is started, which drives the first worm gear to rotate. The rotation of the first worm gear drives the first gear to rotate. The rotation of the first gear drives the second gear to rotate. The rotation of the second gear drives the third gear to rotate, thereby achieving the purpose of driving the first incomplete gear to rotate.

[0013] Optionally, the first rotating shaft is provided with an external release link and a second reset member for driving the external release link to reset. An external release coupling rod is rotatably provided on the external release link. A release rod is coaxially fixed on the pawl. A first locking head is provided on the release rod. A locking groove is provided on the external release coupling rod. A third reset member is provided on the external release coupling rod for abutting the locking groove against the first locking head.

[0014] By adopting the above technical solution, when the external release linkage is pulled to rotate, it drives the external release coupling rod to rotate. The rotation of the external release coupling rod drives the first chuck to rotate. The rotation of the first chuck drives the release rod to rotate. The rotation of the release rod drives the pawl to rotate, thereby achieving the purpose of disengaging the pawl from the lock tongue, and thus realizing the function of unlocking with the external release linkage.

[0015] Optionally, the side shell is provided with an inner release connecting rod and a fourth reset member for driving the inner release connecting rod to rotate and reset. A second rotating rod is rotatably provided on the side shell. An inner release coupling rod is provided at the lower end of the second rotating rod. A horizontal plate is coaxially fixed on the pawl. A vertical plate is provided on the horizontal plate. A fifth reset member is provided on the inner release coupling rod for pressing the inner release coupling rod against the horizontal plate. A linkage plate is provided on the inner release connecting rod for abutting against the end of the second rotating rod away from the inner release coupling rod during rotation.

[0016] By adopting the above technical solution, when the inner release linkage is pulled, the linkage plate is driven to rotate. The rotation of the linkage plate drives the second rotating rod to rotate. The rotation of the second rotating rod drives the inner release coupling rod to move closer to the vertical plate until it pushes the vertical plate to rotate. The rotation of the vertical plate drives the horizontal plate to rotate. The rotation of the horizontal plate drives the pawl to rotate, thereby achieving the purpose of disengaging the pawl from the lock tongue, and thus realizing the function of unlocking the inner release linkage.

[0017] Optionally, the bottom shell is provided with a second incomplete gear and a sixth reset member for rotating and resetting the second incomplete gear. The bottom shell is provided with a second drive assembly for driving the second incomplete gear to rotate. The second incomplete gear is provided with a lever for disengaging the external release coupling rod during rotation, thereby disengaging the lever slot from the first chuck.

[0018] By adopting the above technical solution, when the second drive component is started, it drives the second incomplete gear to rotate. The rotation of the second incomplete gear drives the dial plate to rotate, thereby actuating the external release coupling rod to disengage the dial slot from the first latch. At this time, since the external release coupling rod is disengaged from the second rotating arm, pulling the external release linkage will not drive the pawl to rotate, thus realizing the locking function of the external release linkage and providing an anti-theft effect.

[0019] Optionally, the dial plate is provided with a second locking head, the first rotating shaft is provided with a second rotating arm and a seventh reset member for rotating and resetting the second rotating arm, the bottom end of the inner release coupling rod is provided with a protrusion, one end of the second rotating arm abuts against the second locking head, and the other end abuts against the protrusion, and the top surface of the end of the second rotating arm near the protrusion is provided with a guide surface. When the dial plate moves the outer release coupling rod, the second locking head moves the second rotating arm to rotate, thereby driving the guide surface to gradually pass over the protrusion.

[0020] By adopting the above technical solution, when the lever rotates, it drives the second latch to rotate, which in turn drives the second rotating arm to rotate, thereby causing the guide surface to gradually pass over the protrusion, thus raising the inner release coupling rod. In this case, when the inner release linkage is pulled again, the inner release coupling rod cannot drive the vertical plate to rotate, thereby driving the pawl to rotate, realizing the function of locking the inner release linkage and preventing the door from being opened accidentally during driving.

[0021] Optionally, a release mechanism is rotatably mounted on the side shell. The release mechanism includes a first branch and a second branch that are fixed to each other. A follower plate is provided on the second incomplete gear, and two limiting posts are provided on the follower plate. The first branch is always located between the two limiting posts. A pressure plate is provided on the inner release linkage. When the second incomplete gear starts to rotate from its initial position, it drives the release rod to move the outer release coupling rod. At the same time, the limiting posts drive the release mechanism to rotate, thereby causing the second branch to gradually move closer to the pressure plate. When the inner release linkage rotates for the first time, it drives the pressure plate to rotate. During the rotation of the pressure plate, the second branch is gradually pressed down. The rotation of the second branch drives the first branch to rotate, thereby restoring the second incomplete gear to its initial position.

[0022] By adopting the above technical solution, when the inner release linkage rotates for the first time, it drives the pressure plate to rotate. During the rotation of the pressure plate, the second branch is gradually pressed down. The rotation of the second branch drives the first branch to rotate, thereby restoring the second incomplete gear to its initial position, realizing the unlocking function of the door lock. Subsequently, since the second incomplete gear has returned to its initial position, it is reset by the seventh reset component, and the second rotating arm also returns to its initial position. The inner release coupling rod is gradually pressed down by the fifth reset component until it returns to its original position and abuts against the horizontal plate. When the inner release linkage is pulled a second time, it can finally drive the vertical plate to rotate, thereby realizing the unlocking function.

[0023] Optionally, the locking component includes a sleeve with telescopic heads at both ends. The telescopic heads are slidably connected to the inner wall of the sleeve. A second elastic element is connected between the two telescopic heads. The opposite sides of the two locking hooks are provided with guide grooves for the telescopic heads to slide. The two ends of the guide grooves are connected to the outside.

[0024] By adopting the above technical solution, when installing the self-priming cable or when the self-priming cable breaks and needs to be replaced during use, the self-priming cable is passed through the guide wheel and the sleeve is pulled towards the hook. When the sleeve moves to the top of the guide groove, the telescopic heads on both sides of the sleeve are pressed, so that the telescopic heads on both sides of the sleeve gradually retract into the sleeve. The sleeve is pressed down, and the telescopic heads are aligned with the guide groove and moved down along the guide groove until the telescopic heads disengage from the bottom of the guide groove. Under the reset action of the second elastic element, the telescopic heads are ejected from the sleeve and locked in the hook, thereby realizing the installation of the self-priming cable.

[0025] Optionally, the two telescopic heads are provided with mounting grooves at opposite ends, and the two ends of the second elastic element are respectively connected to the bottom wall of the adjacent mounting groove. The two telescopic heads are provided with clearance grooves at opposite ends, and the clearance grooves are evenly arranged along the circumference of the mounting groove. The clearance grooves on the two telescopic heads are staggered.

[0026] By adopting the above technical solution, it is possible to ensure that the telescopic head has a sufficiently long length while also allowing the telescopic heads at both ends of the sleeve to retract into the sleeve as much as possible, thereby reducing the possibility that the telescopic head may detach from the hook due to the telescopic heads on both sides of the sleeve being too short.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting the self-closing cable and cable mechanism entirely within the housing formed by the bottom and side shells, the interference between the self-closing cable and the wiring harness inside the door can be reduced, thereby reducing the overall difficulty of arranging the wiring harness inside the door. In addition, it is proposed to integrate the cable mechanism into the housing structure. During installation, only the housing mechanism needs to be installed and fixed, without the need to install the self-closing door lock actuator or connect the self-closing cable to the self-closing door lock actuator, thereby improving the installation efficiency of the door lock.

[0029] 2. By setting the lever, when the second drive component is started, it drives the second incomplete gear to rotate. The rotation of the second incomplete gear drives the lever to rotate, thereby actuating the external release coupling rod to disengage the slot from the first latch. At this time, since the external release coupling rod is disengaged from the second rotating arm, pulling the external release linkage will not drive the pawl to rotate, thus realizing the locking function of the external release linkage and providing an anti-theft effect.

[0030] 3. Through the design of the sleeve, telescopic head, and elastic element, when installing the self-priming pull cable, pull the sleeve towards the hook. When the sleeve moves above the guide groove, press the telescopic heads on both sides of the sleeve, causing them to gradually retract into the sleeve. Press the sleeve down, aligning the telescopic heads with the guide groove and moving them downwards along the guide groove until they disengage from the bottom of the guide groove. Under the reset action of the second elastic element, the telescopic heads are ejected from the sleeve and locked in the hook, thus realizing the installation of the self-priming pull cable, making installation more labor-saving. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0032] Figure 2 This is a structural schematic diagram illustrating the internal structure of the bottom shell and side shell in Embodiment 1 of this application.

[0033] Figure 3 This is a structural schematic diagram illustrating the self-priming pull cord and pull cord mechanism in Embodiment 1 of this application.

[0034] Figure 4 This is a schematic diagram illustrating the structure of the first driving component in Embodiment 1 of this application.

[0035] Figure 5 This is a schematic diagram illustrating the structure of the external release linkage and the second drive assembly in Embodiment 1 of this application.

[0036] Figure 6 This is a structural schematic diagram illustrating the connection method between the release rod and the external release coupling rod in Embodiment 1 of this application.

[0037] Figure 7 This is a schematic diagram illustrating the structure of the internal release linkage in Embodiment 1 of this application.

[0038] Figure 8 This is a schematic diagram illustrating the structure of the safety release device in Embodiment 1 of this application.

[0039] Figure 9 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0040] Figure 10 This is a structural diagram illustrating the internal structure of the telescopic head in Embodiment 2 of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Bottom shell; 11. Locking tongue; 111. Half locking tooth; 112. Full locking tooth; 113. Transition arc surface; 12. Pawl; 122. Release lever; 1221. First locking head; 123. Horizontal plate; 1231. Vertical plate; 14. First rotating shaft; 141. First rotating arm; 1411. Drive arm; 1412. Self-closing pull cable; 142. First reset component; 143. External release linkage; 1431. 1432. External release coupling rod; 1433. Slot; 1434. Third reset component; 145. Second reset component; 146. Second rotating arm; 1451. Guide surface; 147. Seventh reset component; 15. Second incomplete gear; 151. Paddle plate; 1511. Second chuck; 152. Follower plate; 1521. Limiting post; 16. Sixth reset component; 17. Second drive assembly; 171. Second motor; 172. Second worm gear; 18. Second worm wheel; 181. Fourth gear; 2. Side shell; 21. Guide wheel; 22. First drive assembly; 221. First motor; 222. First worm gear; 23. First worm wheel; 24. First gear; 25. Second gear; 26. Third gear; 27. Internal release connecting rod; 271. Fourth reset component; 272. Linkage plate; 273. Pressure plate; 28. Second rotating rod; 281. Internal release coupling 2811, fifth reset component; 2812, protrusion; 29, safety release component; 291, first branch; 292, second branch; 3, pull wire mechanism; 31, first incomplete gear; 311, clamping plate; 312, limiting gap; 313, hook; 3131, guide groove; 32, clamping component; 321, sleeve; 322, telescopic head; 3221, clearance groove; 323, mounting groove; 324, second elastic component. Detailed Implementation

[0042] The following, in conjunction with Appendices 1-10, provides a further detailed description of this application.

[0043] Example 1:

[0044] Embodiment 1 of this application discloses an integrated self-closing door lock. (Refer to...) Figure 1 An integrated self-closing door lock includes a base shell 1 and a side shell 2 arranged perpendicularly to each other. A latch 11 and a pawl 12 are rotatably mounted on the base shell 1. A half-locking tooth 111 and a full-locking tooth 112 are integrally formed on the latch 11, with a transition arc surface 113 between the half-locking tooth 111 and the full-locking tooth 112. When the pawl 12 abuts against the half-locking tooth 111, the door is in a half-locked state; when the pawl 12 abuts against the full-locking tooth 112, the door is in a fully locked state.

[0045] Reference Figure 1 , Figure 2 and Figure 3A first rotating shaft 14 is fixed on the bottom shell 1. The first rotating shaft 14 is equipped with a first rotating arm 141 and a first reset member 142 for rotating and resetting the first rotating arm 141. One end of the first rotating arm 141 is provided with a drive arm 1411 for driving the latch 11 from a half-locked state to a fully locked state, and the other end is connected to a self-closing pull cable 1412. The side shell 2 is provided with a guide wheel 21 and a pull mechanism 3 for pulling the self-closing pull cable 1412. The end of the self-closing pull cable 1412 away from the drive arm 1411 passes through the guide wheel 21 and is connected to the pull mechanism 3. The guide wheel 21 is used to reverse the pulling force on the self-closing pull cable 1412. When the pull mechanism 3 pulls the self-closing pull cable 1412, the first rotating arm 141 rotates, causing the drive arm 1411 to move towards the latch 11 and push the latch 11 to rotate. In this embodiment, the first reset member 142 is a torsion spring.

[0046] Reference Figure 2 and Figure 3 The cable pulling mechanism 3 includes a first incomplete gear 31, which is rotatably mounted on the side shell 2. Two clamping plates 311 are integrally formed on the outer peripheral wall of the first incomplete gear 31, and a limiting gap 312 is formed between the two clamping plates 311. A hook 313 is integrally formed on one end of the clamping plate 311. The end of the self-suction cable 1412 away from the first rotating arm 141 passes through the limiting gap 312 and is fixedly connected to a clamping member 32. The two ends of the clamping member 32 are respectively clamped in the two hooks 313. The side shell 2 is provided with a first driving assembly 22 for driving the second incomplete gear 15 to rotate.

[0047] Reference Figure 2 , Figure 3 and Figure 4 The first drive assembly 22 includes a first motor 221 and a first worm gear 222. The first motor 221 is fixed to the side housing 2, and the first worm gear 222 is coaxially fixed to the output shaft of the first motor 221. A first worm wheel 23 is rotatably mounted on the side housing 2, meshing with the first worm gear 222. A first gear 24 is coaxially fixed on the first worm wheel 23. A second gear 25 is rotatably mounted on the side housing 2, and a third gear 26 is coaxially fixed on the second gear 25. The number of teeth on the first gear 24 is less than the number of teeth on the second gear 25. The third gear 26 meshes with a first incomplete gear 31.

[0048] When closing the car door, the door is manually pulled to close. When the external force applied to the door is small, causing the door lock to be in a half-locked state, the latch 11 is in the half-locked position, at which time the pawl 12 abuts against the half-locking tooth 111. The first motor 221 is started, driving the first worm gear 222 to rotate. The rotation of the first worm gear 222 drives the first gear 24 to rotate, which in turn drives the second gear 25 to rotate. The rotation of the second gear 25 drives the third gear 26 to rotate, which in turn drives the first incomplete gear 31 to rotate, which in turn drives the latch 313 to rotate. The latch 313 then rotates... The locking element 32 rotates, which in turn pulls the self-closing cable 1412. The self-closing cable 1412 pulls and drives the first rotating arm 141 to rotate. The rotation of the first rotating arm 141 drives the drive arm 1411 to move toward the latch 11 and push the latch 11 to rotate, thereby causing the half locking tooth 111 to disengage from the pawl 12. The pawl 12 slides relative to the transition arc surface 113 until the full locking tooth 112 engages with the pawl 12. The latch 11 is in the fully locked position, and the first motor 221 stops. At this time, the first reset element 142 drives the first rotating arm 141 to rotate and reset, and the drive arm 1411 returns to the initial position.

[0049] By utilizing the transmission ratios between the worm gear and worm, the first gear 24 and the second gear 25, and the third gear 26 and the first incomplete gear 31, the traction force is increased while the speed is reduced, thus amplifying the torque output by the first motor 221. This allows for the selection of a lower-power first drive motor. After the aforementioned series of transmission ratios, the self-priming cable 1412 can still be pulled. Furthermore, due to the lower power of the first drive motor, the first worm 222 can also be made of plastic, thereby reducing production costs.

[0050] Reference Figure 5 and Figure 6 The first rotating shaft 14 is provided with an external release connecting rod 143 and a second reset member 144 for driving the external release connecting rod 143 to rotate and reset. The external release connecting rod 143 is rotatably connected to the first rotating shaft 14. An external release coupling rod 1431 is rotatably mounted on the external release connecting rod 143. A release rod 122 is coaxially fixed on the pawl 12. A first locking head 1221 is integrally formed on the release rod 122. A locking groove 1432 is opened on the external release coupling rod 1431. A third reset member 1433 is provided on the external release coupling rod 1431 for abutting the locking groove 1432 against the first locking head 1221. In this embodiment, both the second reset member 144 and the third reset member 1433 are torsion springs.

[0051] When the external release linkage 143 is pulled to rotate, it drives the external release coupling rod 1431 to rotate. The rotation of the external release coupling rod 1431 drives the first locking head 1221 to rotate. The rotation of the first locking head 1221 drives the release rod 122 to rotate. The rotation of the release rod 122 drives the pawl 12 to rotate, thereby achieving the purpose of disengaging the pawl 12 from the locking tongue 11, and thus realizing the unlocking function of the external release linkage 143.

[0052] Reference Figure 2 and Figure 7 The side shell 2 is provided with an inner release connecting rod 27 and a fourth reset member 271 for driving the inner release connecting rod 27 to rotate and reset. A second rotating rod 28 is rotatably mounted on the side shell 2, and an inner release coupling rod 281 is rotatably mounted at the lower end of the second rotating rod 28. A horizontal plate 123 is coaxially fixed on the pawl 12, and a vertical plate 1231 is coaxially fixed on one end of the horizontal plate 123 away from the inner release coupling rod 281. A fifth reset member 2811 is provided on the inner release coupling rod 281 for pressing the inner release coupling rod 281 against the horizontal plate 123. A linkage plate 272 is integrally formed on the inner release connecting rod 27 for abutting the end of the second rotating rod 28 away from the inner release coupling rod 281 during rotation. In this embodiment, both the fourth reset member 271 and the fifth reset member 2811 are torsion springs.

[0053] When the inner release linkage 27 is pulled, the linkage plate 272 is rotated. The rotation of the linkage plate 272 causes the second rotating rod 28 to rotate. The rotation of the second rotating rod 28 causes the inner release coupling rod 281 to move closer to the vertical plate 1231 until it pushes the vertical plate 1231 to rotate. The rotation of the vertical plate 1231 causes the horizontal plate 123 to rotate. The rotation of the horizontal plate 123 causes the pawl 12 to rotate, thereby achieving the purpose of disengaging the pawl 12 from the lock tongue 11, and thus realizing the function of unlocking the inner release linkage 27.

[0054] Reference Figure 5 and Figure 6 A second incomplete gear 15 is rotatably connected to the bottom shell 1, and a sixth reset member 16 is provided on the bottom shell 1 for resetting the rotation of the second incomplete gear 15. A second drive assembly 17 is provided on the bottom shell 1 to drive the rotation of the second incomplete gear 15. A lever plate 151 is integrally formed on the second incomplete gear 15. The lever plate 151 is used to push the external release coupling rod 1431 during rotation, thereby disengaging the lever groove from the first locking head 1221. In this embodiment, the sixth reset member 16 is a torsion spring.

[0055] Reference Figure 5 and Figure 7The dial plate 151 has a second locking head 1511 integrally formed on it. The first rotating shaft 14 is provided with a second rotating arm 145 and a seventh reset member 146 for rotating and resetting the second rotating arm 145. The bottom end of the inner release coupling rod 281 has a protrusion 2812 integrally formed on it. One end of the second rotating arm 145 abuts against the second locking head 1511, and the other end abuts against the protrusion 2812. The top surface of the end of the second rotating arm 145 near the protrusion 2812 is provided with a guide surface 1451. When the dial plate 151 moves the outer release coupling rod 1431, the second locking head 1511 moves the second rotating arm 145 to rotate, thereby causing the guide surface 1451 to gradually pass over the protrusion 2812. In this embodiment, the seventh reset member 146 is a torsion spring.

[0056] Reference Figure 2 and Figure 5 The second drive assembly 17 includes a second motor 171 and a second worm gear 172 coaxially fixed to the second motor 171. The second motor 171 is mounted on the base housing 1. A second worm wheel 18 is rotatably connected to the base housing 1. The second worm wheel 18 meshes with the second worm gear 172. A fourth gear 181 is coaxially fixed to the second worm wheel 18. The fourth gear 181 meshes with the second incomplete gear 15.

[0057] When the second motor 171 rotates, it drives the second worm gear 172 to rotate. The rotation of the second worm gear 172 drives the second worm wheel 18 to rotate. The rotation of the second worm wheel 18 drives the fourth gear 181 to rotate. The rotation of the fourth gear 181 drives the second incomplete gear 15 to rotate. The rotation of the second incomplete gear 15 drives the dial plate 151 to rotate. The rotation of the dial plate 151 actuates the outer release coupling rod 1431, thereby disengaging the dial slot from the first clamp 1221. At the same time, the dial plate 151 drives the second clamp 1511 to rotate. The second clamp 1511 actuates the second rotating arm 145 to rotate, thereby causing the guide surface 1451 to gradually pass over the protrusion 2812, thereby raising the inner release coupling rod 281. At this time, since the outer release coupling rod 1431 is disengaged from the second rotating arm 145, pulling the outer release link 143 again will not drive the pawl 12 to rotate, thus achieving the function of locking the outer release link 143 and having an anti-theft effect. In addition, since the inner release coupling rod 281 is lifted, pulling the inner release link 27 will not drive the vertical plate 1231 to rotate, thereby driving the pawl 12 to rotate, thus achieving the function of locking the inner release link 27 and preventing the door from being opened by accident during driving.

[0058] Reference Figure 2 and Figure 8A locking mechanism 29 is rotatably mounted on the side shell 2. The locking mechanism 29 includes a first branch 291 and a second branch 292 fixed to each other. A follower plate 152 is integrally formed on the second incomplete gear 15. Two limit posts 1521 are integrally formed on the end of the follower plate 152 away from its own rotation center. The first branch 291 is always located between the two limit posts 1521. A pressure plate 273 is integrally formed on the inner release linkage 27. When the second incomplete gear 15 starts to rotate from the initial position, it drives the release rod 122 to move the outer release coupling rod 1431. At the same time, the limit posts 1521 drive the locking mechanism 29 to rotate, thereby causing the second branch 292 to gradually move closer to the pressure plate 273. When the inner release linkage 27 rotates for the first time, it drives the pressure plate 273 to rotate. During the rotation of the pressure plate 273, it gradually presses down on the second branch 292. The rotation of the second branch 292 drives the first branch 291 to rotate, thereby restoring the second incomplete gear 15 to the initial position and realizing the locking function of the door lock. Subsequently, since the second incomplete gear 15 has returned to its initial position, the second rotating arm 145 also returns to its initial position due to the reset action of the seventh reset member 146. The inner release coupling rod 281 is gradually pressed down under the action of the fifth reset member 2811 until it returns to its original position and abuts against the horizontal plate 123. When the inner release connecting rod 27 is pulled again for the second time, the inner release coupling rod 281 can finally drive the vertical plate 1231 to rotate, thereby realizing the unlocking function.

[0059] The implementation principle of Embodiment 1 of this application is as follows: When closing the car door, the car door is closed by manually pulling it. When the external force applied to the car door is small, causing the car door lock to be in a half-locked state, the latch 11 is in a half-locked position. At this time, the pawl 12 abuts against the half-locking tooth 111. The cable mechanism 3 is activated, and the cable mechanism 3 pulls the self-closing cable 1412. The self-closing cable 1412 pulls and drives the first rotating arm 141 to rotate. The rotation of the first rotating arm 141 drives the drive arm 1411 to move toward the latch 11 and pushes the latch 11 to rotate, thereby causing the half-locking tooth 111 to disengage from the pawl 12. The pawl 12 slides relative to the transition arc surface 113 until the full-locking tooth 112 engages with the pawl 12, and the latch 11 is in a fully locked position.

[0060] Since the self-closing pull cable 1412 and the pull cable mechanism 3 are both arranged in the housing formed by the bottom shell 1 and the side shell 2, the interference between the self-closing pull cable 1412 and the wiring harness inside the door can be reduced, thereby reducing the overall difficulty of arranging the wiring harness inside the door. In addition, it is proposed to integrate the pull cable mechanism 3 into the housing structure. During installation, only the housing mechanism needs to be installed and fixed. There is no need to install the self-closing door lock actuator or connect the self-closing pull cable 1412 to the self-closing door lock actuator, thereby improving the installation efficiency of the door lock.

[0061] When the external release linkage 143 is pulled to rotate, it drives the external release coupling rod 1431 to rotate. The rotation of the external release coupling rod 1431 drives the first locking head 1221 to rotate. The rotation of the first locking head 1221 drives the release rod 122 to rotate. The rotation of the release rod 122 drives the pawl 12 to rotate, thereby achieving the purpose of disengaging the pawl 12 from the locking tongue 11, and thus realizing the unlocking function of the external release linkage 143.

[0062] When the inner release linkage 27 is pulled, the linkage plate 272 is rotated. The rotation of the linkage plate 272 causes the second rotating rod 28 to rotate. The rotation of the second rotating rod 28 causes the inner release coupling rod 281 to move closer to the vertical plate 1231 until it pushes the vertical plate 1231 to rotate. The rotation of the vertical plate 1231 causes the horizontal plate 123 to rotate. The rotation of the horizontal plate 123 causes the pawl 12 to rotate, thereby achieving the purpose of disengaging the pawl 12 from the lock tongue 11, and thus realizing the function of unlocking the inner release linkage 27.

[0063] When the second motor 171 rotates, it drives the second worm gear 172 to rotate. The rotation of the second worm gear 172 drives the second worm wheel 18 to rotate. The rotation of the second worm wheel 18 drives the fourth gear 181 to rotate. The rotation of the fourth gear 181 drives the second incomplete gear 15 to rotate. The rotation of the second incomplete gear 15 drives the dial plate 151 to rotate. The rotation of the dial plate 151 actuates the outer release coupling rod 1431, thereby disengaging the dial slot from the first clamp 1221. At the same time, the dial plate 151 drives the second clamp 1511 to rotate. The second clamp 1511 actuates the second rotating arm 145 to rotate, thereby causing the guide surface 1451 to gradually pass over the protrusion 2812, thereby raising the inner release coupling rod 281. At this time, since the outer release coupling rod 1431 is disengaged from the second rotating arm 145, pulling the outer release link 143 again will not drive the pawl 12 to rotate, thus achieving the function of locking the outer release link 143 and having an anti-theft effect. In addition, since the inner release coupling rod 281 is lifted, pulling the inner release link 27 will not drive the vertical plate 1231 to rotate, thereby driving the pawl 12 to rotate, thus achieving the function of locking the inner release link 27 and preventing the door from being opened by accident during driving.

[0064] Example 2:

[0065] Embodiment two of this application also discloses an integrated self-closing door lock. (See attached...) Figure 9 and Figure 10The difference between Embodiment 2 and Embodiment 1 is that: the clip 32 includes a sleeve 321, and telescopic heads 322 are inserted into both ends of the sleeve 321. The telescopic heads 322 are slidably connected to the inner wall of the sleeve 321. The two telescopic heads 322 are provided with mounting grooves 323 at opposite ends. The bottom walls of the two mounting grooves 323 are connected by a second elastic member 324. The two hooks 313 are provided with guide grooves 3131 on opposite sides for the telescopic heads 322 to slide. The two ends of the guide grooves 3131 are connected to the outside. Two telescopic heads 322 have clearance grooves 3221 at their opposite ends. These clearance grooves 3221 are evenly distributed along the circumference of the mounting groove 323. The clearance grooves 3221 on the two telescopic heads 322 are staggered. This ensures that the telescopic heads 322 have sufficient length while also allowing the telescopic heads 322 at both ends of the sleeve 321 to retract as much as possible into the sleeve 321, reducing the possibility of the telescopic heads 322 disengaging from the hooks 313 due to excessively short telescopic heads 322 on both sides of the sleeve 321. In this second embodiment, the second elastic element 324 is a helical compression spring.

[0066] The implementation principle of Embodiment 2 of this application is as follows: When installing the self-priming pull cable 1412 or when the self-priming pull cable 1412 breaks and needs to be replaced during use, first connect the end of the self-priming pull cable 1412 away from the sleeve 321 to the first rotating arm 141. Then, pass the self-priming pull cable 1412 through the guide wheel 21 and pull the sleeve 321 towards the hook 313. When the sleeve 321 moves to the top of the guide groove 3131, pinch the telescopic heads 322 on both sides of the sleeve 321, so that... The telescopic heads 322 on both sides of the sleeve 321 gradually retract into the sleeve 321. The sleeve 321 is pressed downwards, and the telescopic heads 322 are aligned with the guide groove 3131 and moved downwards along the guide groove 3131 until the telescopic heads 322 disengage from the bottom of the guide groove 3131. Under the reset action of the second elastic element 324, the telescopic heads 322 are ejected from the sleeve 321 and locked in the hook 313, thereby realizing the installation of the self-closing pull cable 1412. Compared with the installation method of the self-closing pull cable 1412 in Embodiment 1, it is not necessary to pull the locking piece 32 completely over the hook 313 and pass it over the hook 313 before locking it into the hook 313, reducing the pulling force required to pull the locking piece 32 and making the installation easier.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated self-closing door lock, characterized in that: The vehicle includes a bottom shell (1) and a side shell (2) arranged perpendicularly to each other. A locking tongue (11) and a pawl (12) are rotatably mounted on the bottom shell (1). The locking tongue (11) is provided with a half-locking tooth (111) and a full-locking tooth (112). When the pawl (12) abuts against the half-locking tooth (111), the door is in a half-locked state. When the pawl (12) abuts against the full-locking tooth (112), the door is in a fully locked state. A first rotating shaft (14) is provided on the bottom shell (1). The first rotating shaft (14) is provided with a first rotating arm (141) and a first reset member (142) for resetting the first rotating arm (141). One end of the first rotating arm (141) is provided with a... There is a drive arm (1411) for driving the latch (11) to rotate from a half-locked state to a fully locked state, and a self-closing pull cable (1412) is provided at the other end. The side shell (2) is provided with a guide wheel (21) and a pull cable mechanism (3) for pulling the self-closing pull cable (1412). The end of the self-closing pull cable (1412) away from the drive arm (1411) passes through the guide wheel (21) and is connected to the pull cable mechanism (3). When the pull cable mechanism (3) pulls the self-closing pull cable (1412), the first rotating arm (141) rotates, causing the drive arm (1411) to move toward the latch (11) and push the latch (11) to rotate. The first rotating shaft (14) is provided with an external release mechanism. The outer release link (143) and the second reset member (144) for driving the outer release link (143) to reset are provided. An outer release coupling rod (1431) is rotatably provided on the outer release link (143). A release rod (122) is coaxially fixed on the pawl (12). A first chuck (1221) is provided on the release rod (122). A slot (1432) is provided on the outer release coupling rod (1431). A third reset member (1433) for abutting the slot (1432) against the first chuck (1221) is provided on the outer release coupling rod (1431). An inner release link (27) and a drive inner release link (28) are provided on the side shell (2). 7) The fourth reset component (271) for rotation reset, the side shell (2) is rotatably provided with a second rotating rod (28), the lower end of the second rotating rod (28) is provided with an inner release coupling rod (281), the pawl (12) is coaxially fixed with a horizontal plate (123), the horizontal plate (123) is provided with a vertical plate (1231), the inner release coupling rod (281) is provided with a fifth reset component (2811) for pressing the inner release coupling rod (281) against the horizontal plate (123), the inner release connecting rod (27) is provided with a linkage plate (272) for abutting the end of the second rotating rod (28) away from the inner release coupling rod (281) during rotation;The bottom shell (1) is provided with a second incomplete gear (15) and a sixth reset member (16) for rotating and resetting the second incomplete gear (15). The bottom shell (1) is provided with a second drive assembly (17) for driving the second incomplete gear (15) to rotate. The second incomplete gear (15) is provided with a lever (151) for disengaging the slot (1432) from the first chuck (1221) by actuating the external release coupling rod (1431) during rotation.

2. The integrated self-closing door lock according to claim 1, characterized in that: The pull-wire mechanism (3) includes a first incomplete gear (31), which is rotatably mounted on the side shell (2). The first incomplete gear (31) is provided with two clamping plates (311), and a limiting gap (312) is formed between the two clamping plates (311). One end of the clamping plate (311) is provided with a hook (313). The end of the self-suction pull-wire (1412) away from the first rotating arm (141) passes through the limiting gap (312) and is provided with a clamping element (32). The two ends of the clamping element (32) are respectively clamped in the two hooks (313). The side shell (2) is provided with a first driving assembly (22) that drives the first incomplete gear (31) to rotate.

3. An integrated self-closing door lock according to claim 2, characterized in that: The first drive assembly (22) includes a first motor (221) and a first worm gear (222) coaxially fixed to the first motor (221). The first motor (221) is fixed to the side shell (2). A first worm wheel (23) is rotatably disposed on the side shell (2). The first worm wheel (23) meshes with the first worm gear (222). A first gear (24) is coaxially fixed on the first worm wheel (23). A second gear (25) is rotatably disposed on the side shell (2). A third gear (26) is coaxially fixed on the second gear (25). The number of teeth of the first gear (24) is less than the number of teeth of the second gear (25). The third gear (26) meshes with a first incomplete gear (31).

4. An integrated self-closing door lock according to claim 3, characterized in that: The dial plate (151) is provided with a second locking head (1511), the first rotating shaft (14) is provided with a second rotating arm (145) and a seventh reset member (146) for the rotation reset of the second rotating arm (145), the bottom end of the inner release coupling rod (281) is provided with a protrusion (2812), one end of the second rotating arm (145) abuts against the second locking head (1511), and the other end abuts against the protrusion (2812). The top surface of the second rotating arm (145) near the protrusion (2812) is provided with a guide surface (1451). When the dial plate (151) moves the outer release coupling rod (1431), the second locking head (1511) moves the second rotating arm (145) to rotate, thereby driving the guide surface (1451) to gradually pass over the protrusion (2812).

5. An integrated self-closing door lock according to claim 4, characterized in that: A release mechanism (29) is rotatably mounted on the side shell (2). The release mechanism (29) includes a first branch (291) and a second branch (292) that are fixed to each other. A follower plate (152) is provided on the second incomplete gear (15). Two limit posts (1521) are provided on the follower plate (152). The first branch (291) is always located between the two limit posts (1521). A pressure plate (273) is provided on the inner release linkage (27). When the second incomplete gear (15) starts to rotate from the initial position, it drives the release mechanism. As the lever (122) moves the external release coupling lever (1431), the limiting post (1521) drives the unlocking component (29) to rotate, thereby causing the second branch (292) to gradually move closer to the pressure plate (273); when the internal release linkage (27) rotates for the first time, it drives the pressure plate (273) to rotate. During the rotation of the pressure plate (273), it gradually presses down on the second branch (292). The rotation of the second branch (292) drives the first branch (291) to rotate, thereby restoring the second incomplete gear (15) to its initial position.

6. An integrated self-closing door lock according to claim 2, characterized in that: The locking element (32) includes a sleeve (321), with telescopic heads (322) at both ends of the sleeve (321). The telescopic heads (322) are slidably connected to the inner wall of the sleeve (321). A second elastic element (324) is connected between the two telescopic heads (322). The opposite side of the two hooks (313) is provided with a guide groove (3131) for the telescopic heads (322) to slide. The two ends of the guide groove (3131) are connected to the outside.

7. An integrated self-closing door lock according to claim 6, characterized in that: The two telescopic heads (322) are provided with mounting grooves (323) at opposite ends. The two ends of the second elastic member (324) are respectively connected to the bottom wall of the adjacent mounting groove (323). The two telescopic heads (322) are provided with clearance grooves (3221) at opposite ends. The clearance grooves (3221) are evenly arranged along the circumference of the mounting groove (323). The clearance grooves (3221) on the two telescopic heads (322) are staggered.

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