A sliding door lock for a vehicle

Abstract

The present application relates to the technical field of automobile, disclose a kind of vehicle sliding door lock, lock door assembly includes unlocking swing arm and lock body, unlocking swing arm is engaged with lock body;Safety component includes first swing arm, second swing arm and slide bar, seat body includes safety support arm, first swing arm is rotatably connected to safety support arm, second swing arm is rotatably connected to safety support arm, transmission groove is formed between second swing arm and unlocking swing arm;One end of slide bar is inserted into transmission groove;Transmission groove is provided with transmission end and safety end, first swing arm drives slide bar to slide and switch in transmission end and safety end, when slide bar is located in transmission end, second swing arm, slide bar and unlocking swing arm are transmission cooperation;When slide bar is located in safety end, second swing arm is separated from slide bar and unlocking swing arm respectively.The vehicle sliding door lock of the present application integrates the inside lock safety function to the vehicle sliding door lock body, realizes the balance of lock system function distribution, to improve the efficiency and performance of overall system.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and in particular to a sliding door lock for a vehicle. Background Art

[0002] With the continuous development of the automotive industry, vehicle safety, comfort, and intelligence are gaining increasing attention. As a crucial component of a vehicle, the door lock system not only fulfills its anti-theft and safety functions but also directly impacts the user's daily experience. The locking system design is particularly complex for vehicles equipped with sliding doors, as it must accommodate the unique movement and locking requirements of the sliding doors.

[0003] Traditional automotive sliding door lock systems typically utilize separate locking and safety mechanisms, each with relatively independent functions. This results in a complex system structure and a large number of components, increasing manufacturing costs while also reducing system reliability and efficiency. Furthermore, traditional lock systems can exhibit an imbalance in functional distribution. For example, the locking mechanism may handle too many functions, while the safety mechanism may have a relatively limited function, limiting overall system performance. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. The present invention provides a vehicle sliding door lock that integrates an internal locking safety function into the vehicle sliding door lock body, achieving a balanced distribution of locking system functions, thereby improving the efficiency and performance of the entire system.

[0005] In order to achieve the above-mentioned object, the present invention provides a vehicle sliding door lock, comprising a base, a safety assembly and a door lock assembly.

[0006] The door lock assembly includes an unlocking arm and a lock body, wherein the lock body and the unlocking arm are respectively rotatably connected to the base body, and the unlocking arm is engaged with the lock body;

[0007] The safety assembly includes a first rotating arm, a second rotating arm and a sliding rod, the base body includes a safety support arm, the safety support arm is provided with a first rotating shaft and a second rotating shaft, the first rotating arm is rotatably connected to the safety support arm via the first rotating shaft, the second rotating arm is rotatably connected to the safety support arm via the second rotating shaft, the safety support arm is located between the first rotating arm and the second rotating arm, the second rotating arm is located between the safety support arm and the unlocking rotating arm, a transmission groove is defined between the second rotating arm and the unlocking rotating arm, the sliding rod is rotatably connected to the first rotating arm, and one end of the sliding rod is inserted into the transmission groove;

[0008] The transmission groove is provided with a transmission end and a safety end, and the first rotating arm drives the sliding rod to slide and switch between the transmission end and the safety end. When the sliding rod is located at the transmission end, the second rotating arm, the sliding rod and the unlocking rotating arm are coordinated in transmission, and the second rotating arm is rotated to control the unlocking rotating arm to separate from the lock body; when the sliding rod is located at the safety end, the second rotating arm is separated from the sliding rod and the unlocking rotating arm respectively.

[0009] As a preferred solution, the base body includes a base plate, which is connected to a third rotating shaft and a fourth rotating shaft, the safety support arm is perpendicular to the base plate, the lock body is rotatably connected to the base plate via the third rotating shaft, and the unlocking rotating arm is rotatably connected to the base plate via the fourth rotating shaft.

[0010] As a preferred solution, the lock body includes a lock plate and a lock buckle fixed to the vehicle body, the lock plate is rotatably connected to the base plate through the third rotating shaft, the outer periphery of the lock plate is provided with a lock groove and a limit groove, the lock buckle is slidably inserted in the lock groove, and the unlocking arm is provided with a pawl, and the pawl is engaged with the limit groove.

[0011] As a preferred solution, the unlocking arm includes an unlocking lever and a limiting lever, the unlocking lever is perpendicular to the limiting lever, and when the sliding rod is located at the transmission end, the second arm, the sliding rod and the unlocking lever are in transmission cooperation, the pawl is connected to the limiting lever, and the limiting lever is rotatably connected to the base plate through the fourth rotating shaft.

[0012] As a preferred solution, the limit lever is connected to a second return spring, one end of the second return spring is connected to the bottom plate, and the other end is connected to the limit lever.

[0013] As a preferred solution, the second rotating arm includes an operating part and a transmission part, an angle is defined between the operating part and the transmission part, the angle opens toward the bottom plate, and the sliding rod passes through the angle and is inserted into the transmission slot.

[0014] As a preferred solution, the transmission part and the unlocking arm are arranged opposite to the sliding rod. When the sliding rod is located at the transmission end, the transmission part, the sliding rod and the unlocking arm are coordinated in transmission. When the sliding rod is located at the safety end, the transmission part is separated from the sliding rod and the unlocking arm respectively.

[0015] As a preferred solution, the first rotating arm is connected to a fifth rotating shaft, and the sliding rod is rotatably connected to the fifth rotating shaft.

[0016] As a preferred solution, the safety support arm is provided with a first limiting notch, and the first rotating arm is provided with a first limiting block, and the first limiting block is clamped in the first limiting notch.

[0017] As a preferred solution, the safety support arm is provided with a second limiting notch, the second rotating arm is provided with a second limiting block, and the second limiting block is clamped in the second limiting notch.

[0018] Compared with the prior art, a sliding door lock for a vehicle according to an embodiment of the present invention has the following advantages: it includes a base, a safety assembly, and a door lock assembly, wherein the safety assembly is used to implement a locking safety function, and the door lock assembly is used to lock the vehicle door. The base is used to connect the safety assembly and the door lock assembly to form a whole, and to support the safety assembly and the door lock assembly. The door lock assembly includes an unlocking arm and a lock body, and the lock body is used to lock or unlock the vehicle door and the vehicle body. When the unlocking arm is engaged with the lock body, the lock body is limited so that the lock body cannot rotate, the vehicle door and the vehicle body cannot be opened, and the lock body remains in a locked state. The safety assembly includes a first rotating arm, a second rotating arm, and a sliding rod. The base is provided with a safety support arm. The first rotating arm is rotatably connected to the safety support arm via a first rotating shaft, and the first rotating arm can rotate around the first rotating shaft. The second rotating arm is rotatably connected to the safety support arm via a second rotating shaft, and the second rotating arm can rotate around the second rotating shaft. The safety support arm supports the first rotating arm and the second rotating arm respectively. The safety support arm is located between the first rotating arm and the second rotating arm, and the first rotating arm and the second rotating arm can rotate relative to the safety support arm. A transmission groove is defined between the second rotating arm and the unlocking rotating arm, and the slide rod is rotatably connected to the first rotating arm to support the slide rod. The slide rod is inserted into the transmission groove, which is provided with a transmission end and a safety end. The first rotating arm drives the slide rod to slide and switch between the transmission end and the safety end. When the slide rod is located at the transmission end, the slide rod is located between the second rotating arm and the unlocking rotating arm. When the second rotating arm is moved, the second rotating arm pushes the unlocking rotating arm to rotate through the sliding rod. After the unlocking rotating arm rotates, the unlocking rotating arm is separated from the lock body, thereby releasing the limit of the lock body on the lock body by the shifting rod, and the lock body can be rotated to unlock. The unlocking arm and the lock body remain locked. Rotating the first arm drives the slide bar away from the second arm, causing it to move from the drive end to the safety end. When the slide bar is at the safety end, the second arm separates from the slide bar and the unlocking arm, idling about the second axis to one side of the unlocking arm. The second arm is unable to push the unlocking arm through the slide bar, resulting in the locked state. Integrating the internal lock safety function into the vehicle sliding door lock body achieves a balanced distribution of locking system functions, thereby improving overall system efficiency and performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Figure 2 This is an embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure at A in FIG.

[0021] Figure 3It is a schematic structural diagram of the safety support arm and the other side of the first rotating arm in an embodiment of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the use state of the door lock assembly according to an embodiment of the present invention.

[0023] In the picture:

[0024] 10. Base; 11. Safety support arm; 12. Bottom plate; 13. First limiting notch; 14. Second limiting notch;

[0025] 20. Safety assembly; 21. First rotating arm; 22. Fifth rotating shaft; 23. First rotating shaft; 24. First limiting block; 25. Second rotating arm; 26. Operating unit; 27. Transmission unit; 28. Angle; 29. ​​Second rotating shaft; 30. Second limiting block; 31. Sliding rod; 32. Transmission slot; 33. Transmission end; 34. Safety end;

[0026] 40. Door lock assembly; 41. Unlocking arm; 42. Unlocking lever; 43. Limiting lever; 44. Ratchet; 45. Fourth rotating shaft; 46. Lock body; 47. Lock plate; 48. Lock slot; 49. Limiting slot; 50. Lock catch; 51. Third rotating shaft. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be understood that the terms "connected," "connected," "fixed," etc. used in the present invention should be interpreted broadly. For example, the terms may be fixedly connected, detachably connected, or integrated; may be mechanically connected or welded; may be directly connected or indirectly connected through an intermediate medium; may be internal communication between two elements or an interactive relationship between two elements, unless otherwise clearly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 4As shown, a vehicle sliding door lock according to a preferred embodiment of the present invention includes a base 10, a safety assembly 20 and a door lock assembly 40.

[0031] The door lock assembly 40 includes an unlocking arm 41 and a lock body 46. The lock body 46 and the unlocking arm 41 are respectively rotatably connected to the base 10. The unlocking arm 41 is engaged with the lock body 46.

[0032] The safety assembly 20 includes a first rotating arm 21, a second rotating arm 25 and a sliding rod 31. The base 10 includes a safety support arm 11. The safety support arm 11 is provided with a first rotating shaft 23 and a second rotating shaft 29. The first rotating arm 21 is rotatably connected to the safety support arm 11 via the first rotating shaft 23. The second rotating arm 25 is rotatably connected to the safety support arm 11 via the second rotating shaft 29. The safety support arm 11 is located between the first rotating arm 21 and the second rotating arm 25. The second rotating arm 25 is located between the safety support arm 11 and the unlocking rotating arm 41. A transmission groove 32 is defined between the second rotating arm 25 and the unlocking rotating arm 41. The sliding rod 31 is rotatably connected to the first rotating arm 21. One end of the sliding rod 31 is inserted into the transmission groove 32.

[0033] The transmission groove 32 is provided with a transmission end 33 and a safety end 34. The first rotating arm 21 drives the slide rod 31 to slide and switch between the transmission end 33 and the safety end 34. When the slide rod 31 is located at the transmission end 33, the second rotating arm 25, the slide rod 31 and the unlocking rotating arm 41 are transmitted and cooperated, and the second rotating arm 25 is rotated to control the unlocking rotating arm 41 to separate from the lock body 46; when the slide rod 31 is located at the safety end 34, the second rotating arm 25 is separated from the slide rod 31 and the unlocking rotating arm 41 respectively.

[0034] The sliding door lock of the present invention includes a base 10, a safety assembly 20, and a door lock assembly 40. The safety assembly 20 is used to implement a locking safety function, and the door lock assembly 40 is used to lock the vehicle door. The base 10 is used to connect the safety assembly 20 and the door lock assembly 40 to form an integral unit, providing support for the safety assembly 20 and the door lock assembly 40. The door lock assembly 40 includes an unlocking arm 41 and a lock body 46. The lock body 46 is used to lock or unlock the vehicle door and the vehicle body. When the unlocking arm 41 engages with the lock body 46, the lock body 46 is restricted, preventing it from rotating, preventing the vehicle door and the vehicle body from opening, and maintaining the lock body 46 in a locked state. The safety assembly 20 includes a first rotating arm 21, a second rotating arm 25 and a sliding rod 31. The base 10 is provided with a safety support arm 11. The first rotating arm 21 is rotatably connected to the safety support arm 11 through a first rotating shaft 23. The first rotating arm 21 can rotate around the first rotating shaft 23. The second rotating arm 25 is rotatably connected to the safety support arm 11 through a second rotating shaft 29. The second rotating arm 25 can rotate around the second rotating shaft 29. The safety support arm 11 supports the first rotating arm 21 and the second rotating arm 25 respectively. The safety support arm 11 is located between the first rotating arm 21 and the second rotating arm 25. The first rotating arm 21 and the second rotating arm 25 can rotate relative to the safety support arm 11. A transmission groove 32 is defined between the second rotating arm 25 and the unlocking rotating arm 41. The sliding rod 31 is rotatably connected to the first rotating arm 21 to support the sliding rod 31. The sliding rod 31 is inserted into the transmission groove 32, as shown Figure 2 As shown, the transmission slot 32 has a transmission end 33 and a safety end 34. The first rotating arm 21 drives the slide bar 31 to slide and switch between the transmission end 33 and the safety end 34. When the slide bar 31 is at the transmission end 33, the slide bar 31 is located between the second rotating arm 25 and the unlocking rotating arm 41. When the second rotating arm 25 is moved, the second rotating arm 25 pushes the unlocking rotating arm 41 to rotate through the sliding rod 31. After the unlocking rotating arm 41 rotates, the unlocking rotating arm 41 separates from the lock body 46, thereby releasing the position restriction of the lock body 46 by the lever, and the lock body 46 can be rotated to unlock. The unlocking arm 41 and the lock body 46 remain locked. The first arm 21 rotates, driving the slide bar 31 away from the second arm 25, causing the slide bar 31 to move from the driving end 33 to the safety end 34. When the slide bar 31 is at the safety end 34, the second arm 25 separates from the slide bar 31 and the unlocking arm 41. The second arm 25 idles about the second axis 29 on one side of the unlocking arm 41, preventing the slide bar 31 from pushing the unlocking arm 41, and the lock enters the safety state. Integrating the internal lock safety function into the vehicle sliding door lock body 46 achieves a balanced distribution of locking system functions, thereby improving the efficiency and performance of the entire system.

[0035] As one embodiment, Figure 1As shown, a force in the direction F1 is applied to the first rotating arm 21 to move the slide bar 31 from the safety end 34 to the transmission end 33 , and a force in the opposite direction of F1 is applied to the first rotating arm 21 to move the slide bar 31 from the transmission end 33 to the safety end 34 .

[0036] Further, such as Figure 1 and Figure 4 As shown, the base 10 includes a base plate 12, to which a third rotating shaft 51 and a fourth rotating shaft 45 are connected. The safety support arm 11 is perpendicular to the base plate 12. The lock body 46 is rotatably connected to the base plate 12 via the third rotating shaft 51, and the unlocking arm 41 is rotatably connected to the base plate 12 via the fourth rotating shaft 45. The third rotating shaft 51 and the fourth rotating shaft 45 are both perpendicular to the base plate 12. The lock body 46 is rotatably connected to the base plate 12 about the third rotating shaft 51, and the unlocking arm 41 is rotatably connected to the base plate 12 via the fourth rotating shaft 45. The safety support arm 11 is perpendicular to the base plate 12, so that the safety assembly 20 is located above the door lock assembly 40, avoiding interference during transmission and ensuring smoother transmission.

[0037] Further, such as Figure 1 and Figure 4 As shown, the lock body 46 includes a lock plate 47 and a lock catch 50 fixed to the vehicle body. The lock plate 47 is rotatably connected to the bottom plate 12 via a third rotating shaft 51. A lock groove 48 and a limit groove 49 are provided on the periphery of the lock plate 47. The lock catch 50 is slidably inserted into the lock groove 48. The unlocking arm 41 is provided with a pawl 44, and the pawl 44 is engaged with the limit groove 49. The lock catch 50 is inserted into the lock groove 48 from the opening of the lock groove 48, and the pawl 44 of the unlocking arm 41 is engaged with the limit groove 49 to limit the lock plate 47 and prevent the lock plate 47 from further rotating, so as to achieve the locking of the lock plate 47 and the lock catch 50, thereby improving the locking reliability. The sliding door moves in the left and right directions, as shown in FIG. Figure 4 As shown, when the lock plate 47 and the pawl 44 are solid lines, the lock plate 47 and the lock buckle 50 are in a locked state, the opening of the lock slot 48 is downward, and the lock slot 48 extends roughly in the up-down direction. The lock buckle 50 cannot slide out of the lock slot 48 in the left-right direction. At the same time, the pawl 44 is engaged with the limit slot 49 to limit the position. The lock plate 47 cannot rotate around the third shaft 51 to ensure that the lock buckle 50 is located in the limit slot 49. Figure 4 As shown, when the lock plate 47 and the pawl 44 are dotted lines, when the lock plate 47 and the lock buckle 50 are in the unlocked state, the opening of the lock slot 48 deviates from the moving direction, and the extension direction of the lock slot 48 extends roughly along the left and right directions. The lock plate 47 is fixed to the vehicle door. When the vehicle door is moved away from the defense line of the lock buckle 50, the lock buckle 50 can slide out of the lock slot 48, the pawl 44 is separated from the limit slot 49, and the pawl 44 releases the limit on the lock plate 47, thereby unlocking the vehicle door and the vehicle body.

[0038] As one embodiment, Figure 4As shown, the locking groove 48 is a U-shaped groove, and the opening of the U-shaped groove faces outward.

[0039] As one embodiment, Figure 4 As shown, the lock plate 47 is connected to a first return spring. The first return spring applies a return force F3 to the lock plate 47, causing the lock plate 47 to rotate about the third rotation axis 51. This promotes the rotation of the lock slot 48 from extending generally vertically to extending generally horizontally after the pawl 44 separates from the retaining groove 49, facilitating the release of the lock catch 50 from the lock slot 48 and unlocking the door. When the lock catch 50 is inserted into the lock slot 48 and the door is pushed, the lock catch 50 pushes the lock plate 47 in the direction opposite to the door's movement, thereby shifting the lock plate 47 from the unlocked state to the locked state. Preferably, the first return spring is a torsion spring. One end of the first return spring is connected to the base plate 12, and the other end is connected to the lock plate 47.

[0040] As one embodiment, the opening of the limiting groove 49 is arranged toward the direction of the pawl 44 so that the pawl 44 can be smoothly inserted into or removed from the locking plate 47 .

[0041] Further, such as Figure 1 and Figure 4 As shown, the unlocking arm 41 includes an unlocking lever 42 and a limiting lever 43. The unlocking lever 42 is perpendicular to the limiting lever 43. When the slide bar 31 is at the transmission end 33, the second arm 25, the slide bar 31, and the unlocking lever 42 cooperate in transmission. The pawl 44 is connected to the limiting lever 43, and the limiting lever 43 is rotatably connected to the base plate 12 via a fourth rotation axis 45. The unlocking lever 42 is perpendicular to the limiting lever 43, and the extension direction of the limiting lever 43 is parallel to the extension direction of the base plate 12. The unlocking lever 42 is perpendicular to the limiting lever 43. The second arm 25 pushes the unlocking lever 42 to rotate via the slide bar 31. The unlocking lever 42 drives the limiting lever 43 to rotate about the fourth rotation axis 45, and the limiting lever 43 drives the pawl 44 to engage or disengage with the limiting groove 49. Because the components related to the door lock's safety are located on one side of the components related to the locking, the transmission space is clearly divided into functional areas, thereby preventing interference between the transmission of the safety components and the rotation of the locking components.

[0042] As one embodiment, Figure 1 and Figure 4 As shown, a force in the direction F2 is applied to the second rotating arm 25, and the second rotating arm 25 pushes the sliding rod 31 to drive the unlocking rotating arm 41 to rotate, and the unlocking rotating arm 41 drives the pawl 44 to separate from the limiting groove 49, thereby releasing the limit on the locking block.

[0043] As one embodiment, Figure 1 and Figure 4 As shown, the unlocking lever 42 and the limiting lever 43 are integrally formed, which facilitates component production and improves the mechanical strength of the entire component.

[0044] As one embodiment, Figure 4 As shown, the pawl 44 is riveted to one end of the limit lever 43 so as to drive the pawl 44 to rotate through the limit lever 43 .

[0045] Furthermore, the limit lever 43 is connected to a second return spring, and the limit lever 43 has a limit position and a limit release position. In the initial state of the limit lever 43, the pawl 44 connected to the limit lever 43 is engaged with the limit groove 49 to form a limit position, and the second rotating arm 25 pushes the unlocking lever 42 through the slide rod 31 and drives the limit lever 43 to rotate around the fourth rotating shaft 45 to the limit release position. The pawl 44 is separated from the limit groove 49, and under the action of the second return spring, it drives the limit lever 43 to rotate and reset around the fourth rotating shaft 45, and rotates from the limit release position to the limit position, thereby improving the convenience of operation.

[0046] As one embodiment, the second return spring is a torsion spring, one end of which is connected to the bottom plate 12 , and the other end of which is connected to the limit lever 43 .

[0047] Further, such as Figure 1 and Figure 4 As shown, the second arm 25 includes an operating portion 26 and a transmission portion 27. An angle 28 is defined between the operating portion 26 and the transmission portion 27, with the angle 28 opening toward the base plate 12. A slide rod 31 passes through the angle 28 and then inserts into a transmission slot 32. The operating portion 26 drives the transmission portion 27 to rotate about a second rotation axis 29, which in turn pushes the slide rod 31 toward the unlocking arm 41. This rotation of the unlocking arm 41 improves transmission stability and reliability. Furthermore, the angle 28 between the operating portion 26 and the transmission portion 27 reduces the overall footprint of the second arm 25, contributing to the miniaturization of the vehicle sliding door lock.

[0048] As one embodiment, the angle 28 is set in a range of 15°-45°, so that the second rotating arm 25 occupies a smaller space as a whole, which contributes to the miniaturization of the vehicle sliding door lock.

[0049] Further, such as Figure 1As shown, the transmission portion 27 and the unlocking arm 41 are arranged relative to the slide bar 31. When the slide bar 31 is at the transmission end 33, the slide bar 31 is confined between the transmission portion 27 and the unlocking arm 41. The transmission portion 27, the slide bar 31, and the unlocking arm 41 cooperate with each other. The transmission portion 27 drives the unlocking arm 41 to rotate to the limit release position through the slide bar 31, thereby separating the pawl 44 from the limit slot 49, allowing the lock body 46 to rotate about the third rotation axis 51 and unlock. When the slide bar 31 is at the safety end 34, the transmission portion 27 separates from the slide bar 31 and the unlocking arm 41, respectively, and the transmission relationship between the transmission portion 27 and the slide bar 31 and the unlocking arm 41 is broken. The transmission portion 27 can then rotate freely about the second rotation axis 29. The limit lever 43 is in the limit position, the pawl 44 is engaged with the limit slot 49, the lock body 46 cannot rotate about the third rotation axis 51, and the unlocking arm 41 is in the safety position, ensuring safety in use.

[0050] As one embodiment, Figure 1 As shown, the transmission portion 27 extends toward the limit lever 43 , and the unlock lever 42 extends toward the operating portion 26 . When the slide bar 31 is located at the safety end 34 , the slide bar 31 moves toward the limit lever 43 and away from the transmission portion 27 .

[0051] Further, such as Figure 3 As shown, the first rotating arm 21 is connected to the fifth rotating shaft 22, and the sliding rod 31 is rotatably connected to the fifth rotating shaft 22. The fifth rotating shaft 22 is connected to the side of the first rotating arm 21 near the included angle 28. When the transmission part 27 drives the unlocking rotating arm 41 to rotate via the sliding rod 31, the sliding rod 31 rotates about the fifth rotating shaft 22, thereby preventing the first rotating arm 21 from rotating synchronously, ensuring that the first rotating arm 21 drives the sliding rod 31 to slide on the transmission end 33 or the safety end 34, improving the operation convenience of the first rotating arm 21.

[0052] As one embodiment, the fifth rotating shaft 22 and the second rotating shaft 29 extend in the same direction.

[0053] Further, such as Figure 1 and Figure 3 As shown, the safety support arm 11 is provided with a first limiting notch 13, and the first rotating arm 21 is provided with a first limiting block 24, which is engaged with the first limiting notch 13. The cooperation between the first limiting notch 13 and the first limiting block 24 ensures that the first rotating arm 21 rotates within a set range, improves the accuracy of the position movement of the sliding rod 31 driven by the first rotating arm 21 between the transmission end 33 and the safety end 34, and ensures operational reliability.

[0054] Further, such as Figure 1As shown, the safety support arm 11 is provided with a second limiting notch 14, and the second rotating arm 25 is provided with a second limiting block 30. The second limiting block 30 is connected to the second limiting notch 14. Through the cooperation between the second limiting notch 14 and the second limiting block 30, the second rotating arm 25 is ensured to rotate within the set range, so that the slide rod 31 is always maintained between the transmission part 27 and the unlocking lever 42, thereby ensuring operational reliability.

[0055] In summary, an embodiment of the present invention provides a sliding door lock for a vehicle, comprising a base 10, a safety assembly 20, and a door lock assembly 40. The safety assembly 20 is used to implement a locking safety function, and the door lock assembly 40 is used to lock the vehicle door. The base 10 is used to connect the safety assembly 20 and the door lock assembly 40 to form a whole, providing support for the safety assembly 20 and the door lock assembly 40. The door lock assembly 40 includes an unlocking arm 41 and a lock body 46. The lock body 46 is used to lock or unlock the vehicle door and the vehicle body. When the unlocking arm 41 engages with the lock body 46, the lock body 46 is limited in position, preventing the lock body 46 from rotating, preventing the vehicle door and the vehicle body from opening, and maintaining the lock body 46 in a locked state. The safety assembly 20 includes a first pivot arm 21, a second pivot arm 25, and a slide bar 31. The base 10 is provided with a safety support arm 11. The first pivot arm 21 is rotatably connected to the safety support arm 11 via a first pivot axis 23, and the first pivot arm 21 is capable of rotating about the first pivot axis 23. The second pivot arm 25 is rotatably connected to the safety support arm 11 via a second pivot axis 29, and the second pivot arm 25 is capable of rotating about the second pivot axis 29. The safety support arm 11 supports the first and second pivot arms 21 and 25, respectively. The safety support arm 11 is located between the first and second pivot arms 21 and 25, and the first and second pivot arms 21 and 25 are capable of rotating relative to the safety support arm 11. A transmission slot 32 is defined between the second pivot arm 25 and the unlocking pivot arm 41. The slide bar 31 is rotatably connected to the first pivot arm 21 to provide support for the slide bar 31. The slide bar 31 is inserted into the transmission slot 32, which has a transmission end 33 and a safety end 34. The first rotating arm 21 drives the slide bar 31 to slide and switch between the transmission end 33 and the safety end 34. When the slide bar 31 is at the transmission end 33, it is located between the second rotating arm 25 and the unlocking rotating arm 41. When the second rotating arm 25 is moved, the second rotating arm 25 pushes the unlocking rotating arm 41 to rotate through the slide bar 31. After the unlocking rotating arm 41 rotates, the unlocking rotating arm 41 separates from the lock body 46, thereby releasing the lock body 46 from the position limit of the shift lever, and the lock body 46 can be rotated to unlock. The unlocking arm 41 and the lock body 46 remain locked. The first arm 21 rotates, driving the slide bar 31 away from the second arm 25, causing the slide bar 31 to move from the driving end 33 to the safety end 34. When the slide bar 31 is at the safety end 34, the second arm 25 separates from the slide bar 31 and the unlocking arm 41. The second arm 25 idles about the second axis 29 on one side of the unlocking arm 41, preventing the slide bar 31 from pushing the unlocking arm 41, and the lock enters the safety state. Integrating the internal lock safety function into the vehicle sliding door lock body 46 achieves a balanced distribution of locking system functions, thereby improving the efficiency and performance of the entire system.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A sliding door lock for a vehicle, characterized by: Including seat body, insurance component and door lock component, The door lock assembly includes an unlocking arm and a lock body, wherein the lock body and the unlocking arm are respectively rotatably connected to the base body, and the unlocking arm is engaged with the lock body; The safety assembly includes a first rotating arm, a second rotating arm and a sliding rod, the base body includes a safety support arm, the safety support arm is provided with a first rotating shaft and a second rotating shaft, the first rotating arm is rotatably connected to the safety support arm via the first rotating shaft, the second rotating arm is rotatably connected to the safety support arm via the second rotating shaft, the safety support arm is located between the first rotating arm and the second rotating arm, the second rotating arm is located between the safety support arm and the unlocking rotating arm, a transmission groove is defined between the second rotating arm and the unlocking rotating arm, the sliding rod is rotatably connected to the first rotating arm, and one end of the sliding rod is inserted into the transmission groove; The transmission groove is provided with a transmission end and a safety end, and the first rotating arm drives the sliding rod to slide and switch between the transmission end and the safety end. When the sliding rod is located at the transmission end, the second rotating arm, the sliding rod and the unlocking rotating arm are coordinated in transmission, and the second rotating arm is rotated to control the unlocking rotating arm to separate from the lock body; when the sliding rod is located at the safety end, the second rotating arm is separated from the sliding rod and the unlocking rotating arm respectively.

2. The vehicle sliding door lock according to claim 1, characterized in that: The base body includes a base plate, the base plate is connected to a third rotating shaft and a fourth rotating shaft, the safety support arm is perpendicular to the base plate, the lock body is rotatably connected to the base plate via the third rotating shaft, and the unlocking rotating arm is rotatably connected to the base plate via the fourth rotating shaft.

3. The vehicle sliding door lock according to claim 2, characterized in that: The lock body includes a lock plate and a lock buckle fixed to the vehicle body. The lock plate is rotatably connected to the base plate through the third rotating shaft. The outer periphery of the lock plate is provided with a lock groove and a limit groove. The lock buckle is slidably inserted into the lock groove. The unlocking rotating arm is provided with a pawl, and the pawl is engaged with the limit groove.

4. The vehicle sliding door lock according to claim 3, characterized in that: The unlocking arm includes an unlocking lever and a limiting lever, the unlocking lever is perpendicular to the limiting lever, and when the sliding rod is located at the transmission end, the second arm, the sliding rod and the unlocking lever are in transmission cooperation, the pawl is connected to the limiting lever, and the limiting lever is rotatably connected to the base plate through the fourth rotating shaft.

5. The vehicle sliding door lock according to claim 4, characterized in that: The limit lever is connected to a second return spring, one end of the second return spring is connected to the bottom plate, and the other end is connected to the limit lever.

6. The vehicle sliding door lock according to claim 2, characterized in that: The second rotating arm includes an operating portion and a transmission portion. An angle is defined between the operating portion and the transmission portion. The angle opens toward the bottom plate. The sliding rod passes through the angle and is inserted into the transmission slot.

7. The vehicle sliding door lock according to claim 6, characterized in that: The transmission part and the unlocking arm are arranged opposite to the sliding rod. When the sliding rod is located at the transmission end, the transmission part, the sliding rod and the unlocking arm are coordinated in transmission. When the sliding rod is located at the safety end, the transmission part is separated from the sliding rod and the unlocking arm respectively.

8. The vehicle sliding door lock according to claim 1, characterized in that: The first rotating arm is connected to a fifth rotating shaft, and the sliding rod is rotatably connected to the fifth rotating shaft.

9. The vehicle sliding door lock according to claim 1, characterized in that: The safety support arm is provided with a first limiting notch, and the first rotating arm is provided with a first limiting clamping block, and the first limiting clamping block is clamped in the first limiting notch.

10. The vehicle sliding door lock according to claim 1, characterized in that: The safety support arm is provided with a second limiting notch, and the second rotating arm is provided with a second limiting clamping block, and the second limiting clamping block is clamped in the second limiting notch.

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