Sliding door lock for vehicle

Abstract

The invention relates to the technical field of automobiles, and discloses a vehicle sliding door lock, a door locking assembly comprises an unlocking rotating arm and a lock body, and the unlocking rotating arm is clamped and matched with the lock body; the safety assembly comprises a first rotating arm, a second rotating arm and a sliding rod, the seat body comprises a safety supporting arm, the first rotating arm is rotationally connected to the safety supporting arm, the second rotating arm is rotationally connected to the safety supporting arm, a transmission groove is defined between the second rotating arm and the unlocking 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, the first rotating arm drives the sliding rod to slide and switch between the transmission end and the safety end, and when the sliding rod is located at the transmission end, the second rotating arm, the sliding rod and the unlocking rotating arm are in transmission fit; 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. According to the sliding door lock for the vehicle, the safety function of the inner lock is integrated to the sliding door lock body for the vehicle, balance of function distribution of a lock system is achieved, and therefore the efficiency and performance of the whole system are improved.

Description

Technical Field

[0001] The 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 automobile industry, the safety, comfort and intelligence level of vehicles are increasingly valued. As an important part of the vehicle, the door lock system not only undertakes the anti-theft and safety functions of the vehicle, but also directly affects the daily use experience of users. Especially for vehicles equipped with sliding doors, the design of the lock system is more complicated, and it is necessary to take into account the special movement mode and locking requirements of the sliding door.

[0003] Traditional sliding door lock systems for vehicles usually use independent locking mechanisms and safety mechanisms, and the functions of the two are relatively independent, resulting in a complex system structure and a large number of parts, which not only increases manufacturing costs but also reduces the reliability and efficiency of the system. In addition, traditional lock systems may have an imbalance in function allocation. For example, the locking mechanism assumes too many functions, while the function of the safety mechanism is relatively single, resulting in limited overall system performance. Summary of the invention

[0004] The invention aims to solve at least one of the technical problems existing in the prior art. The invention provides a vehicle sliding door lock, which integrates the inner locking safety function into the vehicle sliding door lock body, realizes the balance of the lock system function distribution, and thus improves the efficiency and performance of the overall system.

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

[0006] The door lock assembly comprises an unlocking rotating arm and a lock body, wherein the lock body and the unlocking rotating arm are respectively rotatably connected to the base body, and the unlocking rotating 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 seat 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 cooperate with each other 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 embodiment, 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.

[0010] As a preferred embodiment, 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 via 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 rotating arm is provided with a ratchet, and the ratchet 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, when the sliding rod is located at the transmission end, the second arm, the sliding rod and the unlocking lever cooperate in transmission, 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 groove.

[0014] As a preferred solution, the transmission part and the unlocking arm are arranged opposite to the sliding rod, and when the sliding rod is located at the transmission end, the transmission part, the sliding rod and the unlocking arm cooperate in transmission, and 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, 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 connected to the second limiting notch.

[0018] Compared with the prior art, a vehicle sliding door lock according to an embodiment of the present invention has the following beneficial effects: it includes a seat body, a safety assembly and a door lock assembly, wherein the safety assembly is used to realize the locking safety function, and the door lock assembly is used to lock the vehicle door. The seat body 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 rotating 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 rotating 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, and the seat body is provided with a safety support arm, the first rotating arm is rotatably connected to the safety support arm through a first rotating shaft, the first rotating arm can rotate around the first rotating shaft, the second rotating arm is rotatably connected to the safety support arm through a second rotating shaft, the second rotating arm can rotate around the second rotating shaft, and 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, and the transmission groove 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 lever, and the lock body can be rotated to unlock. The unlocking arm and the lock body remain in the locked state. The first arm is rotated, and the first arm drives the slide bar to move away from the second arm, so that the slide bar moves from the transmission end to the safety end. When the slide bar is at the safety end, the second arm is separated from the slide bar and the unlocking arm respectively, and the second arm rotates idly around the second axis on one side of the unlocking arm. The second arm cannot push the unlocking arm through the slide bar and enters the safety state. Integrating the internal lock safety function into the vehicle sliding door lock body achieves a balanced distribution of lock system functions, thereby improving the efficiency and performance of the overall system. 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 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 status of the door lock assembly according to an embodiment of the present invention.

[0023] In the figure:

[0024] 10. seat body; 11. insurance support arm; 12. bottom plate; 13. first limiting notch; 14. second limiting notch;

[0025] 20. Insurance component; 21. First rotating arm; 22. Fifth rotating shaft; 23. First rotating shaft; 24. First limiting block; 25. Second rotating arm; 26. Operating part; 27. Transmission part; 28. Angle; 29. ​​Second rotating shaft; 30. Second limiting block; 31. Sliding rod; 32. Transmission groove; 33. Transmission end; 34. Insurance 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 buckle; 51. Third rotating shaft. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with 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 operated 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" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, 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 comprises a seat body 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 body 10, and 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 seat body 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 through the first rotating shaft 23. The second rotating arm 25 is rotatably connected to the safety support arm 11 through 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, and 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 sliding rod 31 to slide and switch between the transmission end 33 and the safety end 34. When the sliding rod 31 is located at the transmission end 33, the second rotating arm 25, the sliding 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 sliding rod 31 is located at the safety end 34, the second rotating arm 25 is separated from the sliding rod 31 and the unlocking rotating arm 41 respectively.

[0034] The vehicle sliding door lock of the present invention comprises a seat body 10, a safety assembly 20 and a door lock assembly 40, wherein the safety assembly 20 is used to realize the locking safety function, and the door lock assembly 40 is used to lock the vehicle door. The seat body 10 is used to connect the safety assembly 20 and the door lock assembly 40 to form a whole, and to support the safety assembly 20 and the door lock assembly 40. The door lock assembly 40 comprises an unlocking rotating arm 41 and a lock body 46, and the lock body 46 is used to lock or unlock the vehicle door and the vehicle body. When the unlocking rotating arm 41 is engaged with the lock body 46, the lock body 46 is limited, so that the lock body 46 cannot rotate, the vehicle door and the vehicle body cannot be opened, and the lock body 46 remains 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 body 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, such as Figure 2 As shown, the transmission groove 32 is provided with a transmission end 33 and a safety end 34, and 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 located at the transmission end 33, the slide bar 31 is located between the second rotating arm 25 and the unlocking rotating arm 41, and the second rotating arm 25 is moved, and 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 is separated from the lock body 46, thereby releasing the limit 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 in the locked state, and the first arm 21 is rotated, and the first arm 21 drives the slide bar 31 to move away from the second arm 25, so that the slide bar 31 moves from the transmission end 33 to the safety end 34. When the slide bar 31 is at the safety end 34, the second arm 25 is separated from the slide bar 31 and the unlocking arm 41 respectively, and the second arm 25 rotates idly around the second shaft 29 on one side of the unlocking arm 41. The second arm 25 cannot push the unlocking arm 41 through the slide bar 31, and enters the safety state. The internal lock safety function is integrated into the vehicle sliding door lock body 46 to achieve a balanced distribution of lock system functions, thereby improving the efficiency and performance of the overall system.

[0035] As one embodiment, Figure 1As shown, a force in the direction of 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 body 10 includes a bottom plate 12, the bottom plate 12 is connected with a third rotating shaft 51 and a fourth rotating shaft 45, the insurance support arm 11 is perpendicular to the bottom plate 12, the lock body 46 is rotatably connected to the bottom plate 12 through the third rotating shaft 51, and the unlocking rotating arm 41 is rotatably connected to the bottom plate 12 through the fourth rotating shaft 45. The third rotating shaft 51 and the fourth rotating shaft 45 are respectively perpendicular to the bottom plate 12, the lock body 46 is rotatably connected to the bottom plate 12 around the third rotating shaft 51, and the unlocking rotating arm 41 is rotatably connected to the bottom plate 12 through the fourth rotating shaft 45. The insurance support arm 11 is perpendicular to the bottom plate 12, so that the insurance component 20 is located above the door lock component 40, avoiding interference during transmission and making the transmission smoother.

[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, such as 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, the lock slot 48 extends roughly in the up-down direction, and 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 limiting slot 49 to limit the position, and the lock plate 47 cannot rotate around the third rotation axis 51 to ensure that the lock buckle 50 is located in the limiting slot 49. Figure 4 As shown, when the lock plate 47 and the pawl 44 are dotted lines, 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 direction. The lock plate 47 is fixed to the vehicle door. When the vehicle door is moved to move 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, and the first return spring applies a return force F3 to the lock plate 47, prompting the lock plate 47 to rotate around the third rotating shaft 51, so that when the pawl 44 is separated from the limiting groove 49, the lock groove 48 is promoted to rotate from extending roughly in the up-down direction to extending roughly in the left-right direction, so that the lock catch 50 is released from the lock groove 48 to unlock. When locking, after the lock catch 50 is inserted into the lock groove 48, when the door is pushed, the lock catch 50 pushes the lock plate 47 to rotate in the opposite direction of the movement of the door, thereby causing the lock plate 47 to enter the locked state from the unlocked state. Preferably, the first return spring is a torsion spring. One end of the first return spring is connected to the bottom 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 pulled out of 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 located at the transmission end 33, the second arm 25, the slide bar 31 and the unlocking lever 42 are in transmission cooperation. The ratchet 44 is connected to the limiting lever 43. The limiting lever 43 is rotatably connected to the bottom plate 12 through the fourth rotating shaft 45. The unlocking lever 42 is perpendicular to the limiting lever 43. The extension direction of the limiting lever 43 is parallel to the extension direction of the bottom plate 12. The unlocking lever 42 is perpendicular to the limiting lever 43. The second arm 25 pushes the unlocking lever 42 to rotate through the slide bar 31. The unlocking lever 42 drives the limiting lever 43 to rotate around the fourth rotating shaft 45. The limiting lever 43 drives the ratchet 44 to engage or separate with the limiting groove 49. Since the relevant components of the door lock for insurance are located on one side of the relevant components for locking, the transmission space function is clearly divided, thereby avoiding interference between the transmission of the insurance 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 limiting of 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 that the limit lever 43 drives the pawl 44 to rotate.

[0045] Furthermore, the limit lever 43 is connected to a second reset 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 sliding rod 31 and drives the limit lever 43 to rotate around the fourth rotating shaft 45 to the limit release position, and the pawl 44 is separated from the limit groove 49, and under the action of the second reset spring, the limit lever 43 is driven 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 rotating 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. The angle 28 opens toward the bottom plate 12. The slide bar 31 passes through the angle 28 and is inserted into the transmission slot 32. The operating portion 26 drives the transmission portion 27 to rotate around the second rotating shaft 29. The transmission portion 27 pushes the slide bar 31 to rotate toward the unlocking rotating arm 41. The slide bar 31 pushes the unlocking rotating arm 41 to rotate. An angle 28 is defined between the operating portion 26 and the transmission portion 27. The slide bar 31 passes through the angle 28 and is inserted into the transmission slot 32, thereby improving the transmission stability and reliability. At the same time, since there is a certain angle 28 between the operating portion 26 and the transmission portion 27, the second rotating arm 25 occupies a smaller space as a whole, which is conducive to the miniaturization of the vehicle sliding door lock.

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

[0049] Further, such as Figure 1As shown, the transmission part 27 and the unlocking arm 41 are arranged relative to the slide bar 31. When the slide bar 31 is located at the transmission end 33, the slide bar 31 is limited between the transmission part 27 and the unlocking arm 41. The transmission part 27, the slide bar 31 and the unlocking arm 41 cooperate in transmission. The transmission part 27 drives the unlocking arm 41 to rotate to the limit release position through the slide bar 31, so that the pawl 44 is separated from the limit groove 49, and the lock body 46 can rotate around the third rotation axis 51 to unlock. When the slide bar 31 is located at the safety end 34, the transmission part 27 is separated from the slide bar 31 and the unlocking arm 41 respectively, and the transmission part 27 is disconnected from the slide bar 31 and the unlocking arm 41 respectively, so that the transmission part 27 can rotate freely around the second rotation axis 29, the limit lever 43 is located at the limit position, the pawl 44 and the limit groove 49 are in a clamping state, the lock body 46 cannot rotate around the third rotation axis 51, and the unlocking arm 41 is in a safety state, ensuring the safety of use.

[0050] As one embodiment, Figure 1 As shown, the transmission part 27 extends toward the limit lever 43 , the unlock lever 42 extends toward the operating part 26 , and 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 part 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 close to the angle 28. When the transmission part 27 pushes the unlocking rotating arm 41 to rotate through the sliding rod 31, the sliding rod 31 rotates around 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 at the transmission end 33 or the insurance end 34, and 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 insurance 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, and the first limiting block 24 is clamped in the first limiting notch 13. Through the cooperation between the first limiting notch 13 and the first limiting block 24, the first rotating arm 21 is ensured to rotate within a set range, and the first rotating arm 21 drives the sliding rod 31 to move back and forth between the transmission end 33 and the insurance end 34. The position movement accuracy is improved, and the operation reliability is ensured.

[0054] Further, such as Figure 1As shown, the safety support arm 11 is provided with a second limit notch 14, and the second rotating arm 25 is provided with a second limit block 30. The second limit block 30 is clamped in the second limit notch 14. Through the cooperation between the second limit notch 14 and the second limit block 30, it is ensured that the second rotating arm 25 rotates within a set range, so that the sliding 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, wherein the safety assembly 20 is used to realize 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, and to support the safety assembly 20 and the door lock assembly 40. The door lock assembly 40 comprises an unlocking rotating arm 41 and a lock body 46, and the lock body 46 is used to lock or unlock the vehicle door and the vehicle body. When the unlocking rotating arm 41 is engaged with the lock body 46, the lock body 46 is limited, so that the lock body 46 cannot rotate, the vehicle door and the vehicle body cannot be opened, and the lock body 46 remains in a locked state. The safety assembly 20 includes a first rotating arm 21, a second rotating arm 25 and a slide bar 31. The seat body 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 slide bar 31 is rotatably connected to the first rotating arm 21 to support the slide bar 31. The slide bar 31 is inserted into the transmission groove 32, and the transmission groove 32 is provided with 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 located at the transmission end 33, the slide bar 31 is located between the second rotating arm 25 and the unlocking rotating arm 41. The second rotating arm 25 is moved, and 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 is separated from the lock body 46, thereby releasing the limit 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 in the locked state, and the first arm 21 is rotated, and the first arm 21 drives the slide bar 31 to move away from the second arm 25, so that the slide bar 31 moves from the transmission end 33 to the safety end 34. When the slide bar 31 is at the safety end 34, the second arm 25 is separated from the slide bar 31 and the unlocking arm 41 respectively, and the second arm 25 rotates idly around the second shaft 29 on one side of the unlocking arm 41. The second arm 25 cannot push the unlocking arm 41 through the slide bar 31, and enters the safety state. The internal lock safety function is integrated into the vehicle sliding door lock body 46 to achieve a balanced distribution of lock system functions, thereby improving the efficiency and performance of the overall system.

[0056] The above are only preferred embodiments 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 in that: Including seat body, insurance component and door lock component, The door lock assembly comprises an unlocking rotating arm and a lock body, wherein the lock body and the unlocking rotating arm are respectively rotatably connected to the base body, and the unlocking rotating arm is engaged with the lock body; The safety assembly includes a first rotating arm, a second rotating arm and a sliding rod, the seat 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 cooperate with each other 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 seat body includes a base plate, the base plate is connected with 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 via the third rotating shaft. A lock groove and a limit groove are provided on the outer periphery of the lock plate. The lock buckle is slidably inserted in 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 lever comprises an unlocking lever and a limiting lever, the unlocking lever is perpendicular to the limiting lever, when the sliding rod is located at the transmission end, the second arm, the sliding rod and the unlocking lever cooperate in transmission, the pawl is connected to the limiting lever, and the limiting lever is rotatably connected to the base plate via 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 part and a transmission part. An angle is defined between the operating part and the transmission part. The angle opens toward the bottom plate. The sliding rod passes through the angle and is inserted into the transmission groove.

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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