Transmission device of car central door lock with electric attraction function

Abstract

This application relates to the field of automotive door lock technology, and provides a transmission device for a central locking system with electric suction function. The device includes a cable mechanism, a rotating plate for controlling the door lock's operation during rotation, and a mounting plate for housing the cable mechanism. The mounting plate has a mounting seat for the cable mechanism. The cable mechanism includes a cable sleeve placed on the mounting seat and a cable inserted into the cable sleeve and slidable along the cable sleeve. The other end of the cable, relative to the end connected to the mounting seat, is rotatably connected to the rotating plate. The mounting seat has a locking groove for placing the cable sleeve, and a locking plate for locking the cable sleeve after it enters the locking groove. The locking plate has a combination groove corresponding to the locking groove, and the diameter of the combined locking groove and the combination groove is the same as the diameter of the cable sleeve. This invention can firmly fix the cable sleeve and the cable to the mounting plate through the locking plate, preventing the cable from falling off the mounting plate.

Description

Technical Field

[0001] This application relates to the field of automotive door lock technology, and in particular to a transmission device for a central locking system for automobiles with electric suction function. Background Technology

[0002] Central locking, or central locking for short, is one of the most basic and common comfort and safety features in modern cars. Simply put, it is a centralized control system that allows passengers to control the locking and unlocking of all doors in the vehicle (usually including the trunk / tailgate) simultaneously through a single point of operation (usually a button or switch on the driver's side door).

[0003] Commercially available automotive central locking systems typically use a motor as the power source for the actuator. Electronic control equipment controls the motor's output power, which is then transmitted via a cable to control the lock's movement. Currently, a Chinese invention patent, published on April 4, 2025, with announcement number CN116427796B, provides a side door lock for automobiles, including an electric opening mechanism and a self-priming ice-breaking auxiliary device. The self-priming ice-breaking auxiliary device includes a rotating rod, an ice-breaking push rod, and a self-priming push rod. The rotating rod can be pulled and rotated by a cable mechanism and returns to its original position when the cable mechanism is not in operation. The ice-breaking push rod and the self-priming push rod are hinged to the rotating rod. In the assisted self-priming mode, the self-priming push rod drives the ratchet, disabling the auxiliary ice-breaking function of the self-priming ice-breaking auxiliary device. In the assisted ice-breaking mode, the ice-breaking push rod drives the ratchet, disabling the auxiliary self-priming function of the self-priming ice-breaking auxiliary device. The car side door lock described in this invention can solve the problem of assisting in opening and closing the door through a cable mechanism, and can select to perform a single function as needed.

[0004] In one related technology, a car side door lock has a pull cable connected to a mounting plate via a fixed sleeve fitted onto its surface. The mounting plate has a semi-open circular groove, and the surface of the fixed sleeve has an annular groove. The fixed sleeve is engaged with the circular groove through the annular groove. When the pull cable moves to control the door lock, the pull cable causes the fixed sleeve to swing. After long-term use, the engagement between the fixed sleeve and the mounting plate may loosen, potentially causing the fixed sleeve and pull cable to detach from the mounting plate, resulting in the door lock malfunctioning. Utility Model Content

[0005] This application provides a transmission device for a car central locking system with electric suction function, which can improve the technical problem in related technologies where the cable is easy to fall off the mounting plate.

[0006] This application provides a transmission device for a car central locking system with electric suction function, including: a cable mechanism, a rotating plate for controlling the door lock's operation when rotated, and a mounting plate for placing the cable mechanism. The mounting plate has a mounting seat for placing the cable mechanism. The cable mechanism includes a cable sleeve placed on the mounting seat and a cable inserted into the cable sleeve and slidable along the cable sleeve. The other end of the cable relative to the end connected to the mounting seat is rotatably connected to the rotating plate. The mounting seat has a locking groove for placing the cable sleeve. The mounting seat has a locking plate for locking the cable sleeve after it enters the locking groove. The locking plate has a combination groove corresponding to the locking groove. The diameter of the combined locking groove and the combination groove is the same as the diameter of the cable sleeve.

[0007] The technical solutions described above in this application embodiment have at least the following technical effects: the cable sleeve and the cable are firmly fixed to the mounting plate by the locking plate, preventing the cable from falling off the mounting plate.

[0008] In some embodiments, the mounting plate is provided with at least two sets of mounting seats, each set of mounting seats is fixedly mounted on the mounting plate in parallel, and each set of mounting seats is provided with a corresponding locking plate.

[0009] In some embodiments, the mounting base and the locking plate are respectively provided with connecting ears on both sides, and the connecting ears are connected by detachable bolts.

[0010] In some embodiments, the cable sleeve has an annular limiting groove at the corresponding position of the locking groove on the mounting base.

[0011] In some embodiments, the locking slot on the mounting base and the combination slot on the locking plate are respectively provided with anti-slip pads.

[0012] In some embodiments, a groove is provided inside the cable sleeve, and steps are provided at both ends of the groove. A limiting ring is fixedly sleeved on the cable, and the limiting ring is slidably disposed inside the groove.

[0013] In some embodiments, the inner wall of the cable sleeve is provided with a plurality of guide grooves, and the outer peripheral surface of the limiting ring is provided with a plurality of guide strips adapted to the guide grooves, the guide strips being slidably connected inside the guide grooves.

[0014] In some embodiments, the cable is fitted with a sheath, the cable can slide along the sheath, and one end of the sheath near the cable sleeve is inserted into the groove and fixedly connected to the inner wall of the cable sleeve.

[0015] In some embodiments, a connecting ring is fixedly sleeved at one end of the cable, and a connecting hole adapted to the connecting ring is provided on the rotating plate, and the connecting ring is rotatably connected inside the connecting hole. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a transmission device for a car central locking system with electric suction function, provided in an embodiment of this application;

[0017] Figure 2 An exploded structural diagram of the transmission device of a car central locking system with electric suction function, provided in an embodiment of this application;

[0018] Figure 3 A cross-sectional view of a transmission device for a car central locking system with electric suction function, provided in an embodiment of this application;

[0019] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0020] Figure 5 for Figure 3 Enlarged view of section B;

[0021] Figure 6 This is a schematic diagram of the connection structure between the cable and the rotating plate of a car central locking system with electric suction function, provided in an embodiment of this application.

[0022] The following are the labeling elements in the figure:

[0023] 1. Cable mechanism; 11. Cable sleeve; 111. Limiting groove; 112. Slide groove; 113. Guide groove; 12. Cable; 2. Rotating plate; 21. Connecting hole; 3. Mounting plate; 31. Mounting base; 311. Locking groove; 312. Locking plate; 313. Combination groove; 314. Connecting ear; 4. Anti-slip pad; 5. Limiting ring; 51. Guide strip; 6. Outer skin; 7. Connecting ring. Detailed Implementation

[0024] In one related technology, a car side door lock has a pull cable connected to a mounting plate via a fixed sleeve fitted onto its surface. The mounting plate has a semi-open circular groove, and the surface of the fixed sleeve has an annular groove. The fixed sleeve is engaged with the circular groove through the annular groove. When the pull cable moves to control the door lock, the pull cable causes the fixed sleeve to swing. After long-term use, the engagement between the fixed sleeve and the mounting plate may loosen, potentially causing the fixed sleeve and pull cable to detach from the mounting plate, resulting in the door lock malfunctioning.

[0025] Based on this, in order to improve the technical problem that the cable is easy to fall off the mounting plate in the related technology, the embodiments of this application provide the following solution.

[0026] The following combination Figures 1-6 This application will be described in further detail.

[0027] This embodiment discloses a transmission device for a car central locking system with electric suction function, including: a cable mechanism 1, a rotating plate 2 for controlling the door lock's operation when rotated, and a mounting plate 3 for placing the cable mechanism 1. The mounting plate 3 is provided with a mounting seat 31 for placing the cable mechanism 1. The cable mechanism 1 includes a cable sleeve 11 placed on the mounting seat 31 and a cable 12 inserted into the cable sleeve 11 and slidable along the cable sleeve 11. The other end of the cable 12 relative to the end connected to the mounting seat 31 is rotatably connected to the rotating plate 2. The mounting seat 31 is provided with a locking groove 311 for placing the cable sleeve 11. The mounting seat 31 is provided with a locking plate 312 for locking the cable sleeve 11 after it enters the locking groove 311. The locking plate 312 is provided with a combination groove 313 corresponding to the locking groove 311. The diameter of the combined connection between the locking groove 311 and the combination groove 313 is the same as the diameter of the cable sleeve 11.

[0028] As can be seen from the above, the car central locking lock with electric suction function provided in this application embodiment has a locking plate 312 and a mounting base 31 that are tightly fitted against the outer peripheral surface of the cable sleeve 11 to fix the cable sleeve 11 on the mounting plate 3. When the cable 12 slides relative to the cable sleeve 11 and drives the rotating plate 2 to rotate, the locking plate 312 can prevent the cable sleeve 11 from detaching from the mounting base 31. At the same time, the locking plate 312 and the mounting base 31 can also reduce the shaking or bending of the cable sleeve 11, so that the sliding direction of the cable 12 is consistent with the axial direction of the cable sleeve 11, thereby reducing the friction between the cable 12 and the cable sleeve 11 and making the sliding of the cable 12 smoother.

[0029] In some embodiments, please refer to the following: Figure 1 and Figure 2 The mounting plate 3 is provided with at least two sets of mounting seats 31, each mounting seat 31 is fixedly mounted on the mounting plate 3 in parallel, and each set of mounting seats 31 is provided with a corresponding locking plate 312.

[0030] With this configuration, each set of mounting bases 31 and locking plates 312 simultaneously fix the cable sleeve 11, which can further reduce the shaking and bending phenomenon caused by the force on the cable sleeve 11 when the cable 12 slides, and enhance the firmness of fixing the cable sleeve 11.

[0031] Optionally, in some embodiments, please refer to Figure 1 and Figure 2 The mounting base 31 and the locking plate 312 are respectively provided with connecting ears 314 on both sides, and the connecting ears 314 are connected by detachable bolts.

[0032] With this setup, when installing the cable sleeve 11, first place the cable sleeve 11 inside the locking groove 311, then press the locking plate 312 onto the cable sleeve 11, so that the combination groove 313 mates with the cable sleeve 11, and at the same time, make the mounting base 31 and the corresponding connecting ears 314 on the locking plate 312 fit together. Then, connect the corresponding connecting ears 314 with bolts to fix the locking plate 312 onto the mounting base 31. When the cable 12 or cable sleeve 11 is damaged and needs to be replaced, unscrew the bolts on the connecting ears 314 to disconnect the connection between the mounting base 31 and the locking plate 312, then remove the locking plate 312, and then remove and replace the cable sleeve 11 and cable 12.

[0033] Optionally, please refer to Figure 2 The cable sleeve 11 is provided with an annular limiting groove 111 at the corresponding position of the locking groove 311 on the mounting base 31.

[0034] With this configuration, the limiting groove 111 can cooperate with the mounting base 31 and the locking plate 312 to limit the axial movement of the cable sleeve 11, preventing the cable sleeve 11 from sliding between the mounting base 31 and the locking plate 312 when the cable 12 slides, thus enhancing the fixing effect of the mounting base 31 and the locking plate 312 on the cable sleeve 11.

[0035] In some embodiments, please refer to Figure 2 Anti-slip pads 4 are provided inside the locking groove 311 on the mounting base 31 and the combination groove 313 on the locking plate 312.

[0036] With this configuration, the anti-slip pad 4 can be made of rubber. After the cable sleeve 11 is installed on the mounting base 31 and fixed by the locking plate 312, the cable sleeve 11 will squeeze the anti-slip pad 4 to deform it, so that the anti-slip pad 4 will stick tightly to the cable sleeve 11 through its own elasticity. The anti-slip pad 4 can increase the axial fixing effect of the mounting base 31 and the locking plate 312 on the cable sleeve 11 through the friction between it and the cable sleeve 11. The cable sleeve 11 may have a certain error in thickness during production. The anti-slip pad 4 can compensate for the error in thickness of the cable sleeve 11 through its own deformation, and avoid the cable sleeve 11 being loosened due to gaps between the mounting base 31, the locking plate 312 and the cable sleeve 11.

[0037] Optionally, in some embodiments, please refer to Figures 3 to 5 The cable sleeve 11 has a groove 112 inside, and steps are provided at both ends of the groove 112. A limiting ring 5 is fixedly sleeved on the cable 12, and the limiting ring 5 is slidably disposed inside the groove 112.

[0038] With this configuration, in the initial state, the limiting ring 5 abuts against the step at one end of the slide groove 112, and the position of the rotating plate 2 at this time puts the door lock in a certain state. When the pull cable 12 drives the limiting ring 5 to slide to the other end of the slide groove 112, the pull cable 12 pulls the rotating plate 2 to rotate, causing the door lock to switch states. When the limiting ring 5 slides to the other end of the slide groove 112 and abuts against the step, the limiting ring 5 and the pull cable 12 stop moving, and the position of the rotating plate 2 at this time puts the door lock in another state. During the sliding process of the pull cable 12, the limiting ring 5 prevents the pull cable 12 from directly contacting and rubbing against the pull cable sleeve 11. The limiting ring 5 can maintain a small frictional resistance with the inner wall of the pull cable sleeve 11, thereby making the sliding of the pull cable 12 smoother.

[0039] Optionally, please refer to Figures 3 to 5 Multiple guide grooves 113 are provided on the inner wall of the cable sleeve 11, and multiple guide strips 51 adapted to the guide grooves 113 are provided on the outer circumferential surface of the limiting ring 5. The guide strips 51 are slidably connected inside the guide grooves 113.

[0040] With this configuration, when the cable 12 slides against the limiting ring 5, the limiting ring 5 causes the guide groove 113 to slide inside the guide bar 51. The guide groove 113 can restrict the rotation of the limiting ring 5 through the guide bar 51, thereby preventing the cable 12 from twisting during sliding and preventing damage to the cable 12.

[0041] In some embodiments, please refer to Figures 3 to 5 The cable 12 is fitted with a skin 6, which can slide along the skin 6. One end of the skin 6 near the cable sleeve 11 is inserted into the groove 112 and fixedly connected to the inner wall of the cable sleeve 11.

[0042] With this design, the outer skin 6 can prevent dust, rainwater, etc. from contacting the cable 12, thus preventing the cable 12 from rusting and causing it to jam when sliding.

[0043] In some embodiments, please refer to Figure 1 and Figure 6 One end of the cable 12 is fixedly sleeved with a connecting ring 7, and the rotating plate 2 has a connecting hole 21 that is adapted to the connecting ring 7. The connecting ring 7 is rotatably connected inside the connecting hole 21.

[0044] With this configuration, when the cable 12 slides, it drives the connecting ring 7 to move. The connecting ring 7 pulls the rotating plate 2 to rotate while rotating relative to the rotating plate 2 inside the connecting hole 21, thereby achieving control over the rotation of the rotating plate 2.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transmission device for a car central locking system with electric suction function, comprising a cable mechanism (1), a rotating plate (2) for controlling the door lock to perform actions when rotated, and a mounting plate (3) for placing the cable mechanism (1), wherein the mounting plate (3) is provided with a mounting seat (31) for placing the cable mechanism (1), the cable mechanism (1) comprising a cable sleeve (11) placed on the mounting seat (31) and a cable (12) inserted into the cable sleeve (11) and slidable along the cable sleeve (11), wherein the other end of the cable (12) is rotatably connected to the rotating plate (2) relative to the end connected to the mounting seat (31), characterized in that: The mounting base (31) is provided with a locking groove (311) for placing the cable sleeve (11). The mounting base (31) is provided with a locking plate (312) for locking the cable sleeve (11) after it enters the locking groove (311). The locking plate (312) is provided with a combination groove (313) corresponding to the locking groove (311). The diameter of the combination groove (311) and the combination groove (313) after being connected is the same as the diameter of the cable sleeve (11).

2. The transmission device for a car central locking system with electric suction function according to claim 1, characterized in that: The mounting plate (3) is provided with at least two sets of mounting seats (31), each mounting seat (31) is fixedly mounted on the mounting plate (3) in parallel, and each set of mounting seats (31) is provided with a corresponding locking plate (312).

3. The transmission device for a car central locking system with electric suction function according to claim 1 or 2, characterized in that: The mounting base (31) and the locking plate (312) are respectively provided with connecting ears (314) on both sides, and the connecting ears (314) are connected by detachable bolts.

4. The transmission device for a car central locking system with electric suction function according to claim 1 or 2, characterized in that: The cable sleeve (11) has an annular limiting groove (111) at the corresponding position of the locking groove (311) on the mounting base (31).

5. The transmission device for a car central locking system with electric suction function according to claim 3, characterized in that: The locking groove (311) on the mounting base (31) and the combination groove (313) on the locking plate (312) are respectively provided with anti-slip pads (4).

6. The transmission device for a car central locking system with electric suction function according to claim 1, 2, or 5, characterized in that: The cable sleeve (11) has a groove (112) inside, and steps are provided at both ends of the groove (112). A limiting ring (5) is fixedly sleeved on the cable (12), and the limiting ring (5) is slidably disposed inside the groove (112).

7. The transmission device for a car central locking system with electric suction function according to claim 6, characterized in that: The inner wall of the cable sleeve (11) is provided with multiple guide grooves (113), and the outer circumferential surface of the limiting ring (5) is provided with multiple guide strips (51) that are adapted to the guide grooves (113). The guide strips (51) are slidably connected inside the guide grooves (113).

8. The transmission device for a car central locking system with electric suction function according to claim 6, characterized in that: The cable (12) is fitted with a skin (6), and the cable (12) can slide along the skin (6). One end of the skin (6) near the cable sleeve (11) is inserted into the groove (112) and fixedly connected to the inner wall of the cable sleeve (11).

9. The transmission device for a car central locking system with electric suction function according to claim 1, 2, or 5, characterized in that: One end of the cable (12) is fixedly sleeved with a connecting ring (7), and the rotating plate (2) has a connecting hole (21) adapted to the connecting ring (7), and the connecting ring (7) is rotatably connected inside the connecting hole (21).

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