Car sliding door self-priming lock and car sliding door

Abstract

The present invention discloses a self-priming lock for a sliding door of an automobile and a sliding door of the automobile, comprising: a base, a first clamping plate, a second clamping plate, a locking claw, a self-priming assembly, and an unlocking assembly; the first clamping plate is used to lock or unlock the sliding door; the second clamping plate is coaxially fixedly connected to the first clamping plate, and its edges extend outwardly to form a first driving arm and a first locking protrusion, respectively; the edges of the locking claw extend outwardly to form a second driving arm and a second locking protrusion, respectively; the self-priming assembly is used to drive the first driving arm to rotate from an unlocked position to a locked position, so that the second locking protrusion locks the first locking protrusion, thereby maintaining the first clamping plate in a locked state through the second clamping plate; the unlocking assembly is used to drive the locking claw to rotate so that the second locking protrusion releases the locking state of the first locking protrusion, thereby releasing the locking state of the first clamping plate. The overall structure of the present invention is simple, the volume is small, and the unlocking force is small, so that it is not easily deformed during self-priming. The manufacturing process is simple, the structure is reliable, and it can meet various operating conditions.

Description

Technical field

[0001] The present invention relates to the technical field of automobile sliding doors, and in particular to an automobile sliding door self-priming lock and an automobile sliding door. [Background Technology]

[0002] Existing vehicles, such as MPVs, have tall, spacious sliding doors. The upper rear portion of the door is prone to deformation due to fatigue impact. Conventional locks often fail to lock or close securely, causing water to enter the vehicle during rain, leading to misaligned opening and door jamming. Furthermore, most self-priming locks on the market utilize L-shaped cantilevered arms, which are prone to deformation during self-priming. This often requires welding to reinforce the cantilevered arms. However, this reinforcement method is complex and difficult to manufacture, poses weak welding issues due to thin sheet metal thicknesses, and presents manufacturing challenges and unreliable quality assurance.

[0003] Patent application number 202021273792.7 discloses a "sliding door lock and mobile vehicle," but unlocking the sliding door lock generates excess torque, resulting in a large unlocking force and easy deformation of the self-priming arm. Patent application number 201922203810.8 discloses a "self-priming lock and sliding door lock." This self-priming lock has a self-priming function, but due to the strong closing force at the upper end of the door, the locking mechanism is not labor-saving and easily deformed; the unlocking efficiency is low, resulting in a large unlocking force, and the opening arm is easily deformed; the opening arm is complex to process and difficult to form.

[0004] In view of this, it is necessary to provide a car sliding door self-priming lock and a car sliding door to overcome the above-mentioned defects. [Summary of the invention]

[0005] The purpose of the present invention is to provide a car sliding door self-priming lock and a car sliding door, aiming to improve the problem that the existing sliding door self-priming lock is easy to deform during self-priming. It has a small size, small unlocking force, simple manufacturing process, and a reliable structure that meets the working conditions and durable use.

[0006] In order to achieve the above object, the present invention provides a self-priming lock for a sliding door of an automobile, comprising:

[0007] base;

[0008] a first clamping plate, the first clamping plate being rotatably connected to the bottom of the base and being used for locking or unlocking the sliding door;

[0009] a second card plate, the second card plate being rotatably connected to a side of the base facing away from the first card plate and being coaxially fixedly connected to the first card plate; edges of the second card plate extending outwardly form a first driving arm and a first card protrusion, respectively;

[0010] A locking claw, the locking claw being rotatably connected to the base and disposed adjacent to the second clamping plate, with edges extending outwardly to form a second driving arm and a second clamping protrusion;

[0011] a self-priming assembly, the self-priming assembly being used to drive the first driving arm to rotate from an unlocked position to a locked position, so that the second latching protrusion locks the first latching protrusion, thereby maintaining the first latching plate in a locked state through the second latching plate;

[0012] An unlocking component is in contact with the second driving arm and is used to drive the locking claw to rotate so that the second latching protrusion releases the locking state of the first latching protrusion, thereby releasing the locking state of the first clamping plate.

[0013] In a preferred embodiment, a first coil spring is provided on the side of the second clamping plate facing away from the base, and a second coil spring is provided on the side of the stopping claw facing away from the base, and the winding direction of the first coil spring is opposite to the winding direction of the second coil spring; when the first clamping plate is released from the locked state, the first coil spring drives the first driving arm to rotate from the locked position and maintain it in the unlocked position, so that the first driving arm abuts against the self-priming component; the second coil spring is used to drive the stopping claw so that the second clamping protrusion maintains a locked state with the first clamping protrusion.

[0014] In a preferred embodiment, the first clamping plate and the second clamping plate are connected by a first central axis with a chamfered structure, and a first mounting groove is provided at an end of the first central axis away from the second clamping plate; the stopping claw is connected to the base through a second central axis with a chamfered structure, and a second mounting groove is provided at an end of the second central axis away from the stopping claw; a fixing groove is also provided on the base; one end of the first coil spring is installed in the first mounting groove, and the other end is installed in the fixing groove; one end of the second coil spring is installed in the second mounting groove, and the other end is installed in the fixing groove.

[0015] In a preferred embodiment, the base includes a seat plate, a connecting plate vertically connected to the seat plate, and a cover plate provided on the side of the connecting plate away from the seat plate; the seat plate, the connecting plate and the cover plate are jointly arranged to form a accommodating groove, and the second clamping plate, the stopping claw, the first coil spring and the second coil spring are all accommodated in the accommodating groove; the cover plate is provided with an avoidance hole for the first driving arm to pass through one end away from the seat plate, and the shape of the avoidance hole is consistent with the trajectory shape of the first driving arm rotating from the unlocking position to the locking position.

[0016] In a preferred embodiment, the self - suction component includes a self - suction fixing plate fixed to the base, a self - suction shaft with two ends respectively connected to the base and the self - suction fixing plate, a self - suction arm hinged to the self - suction shaft at one side, and a self - suction driving part connected to the side of the self - suction arm away from the self - suction shaft; on the side of the self - suction arm close to the cover plate, there is a third driving arm, and the third driving arm is used to drive the first driving arm to rotate from the unlocking position to the locking position under the drive of the self - suction driving part.

[0017] In a preferred embodiment, a first torsion spring is sleeved on the self - suction shaft, and the first torsion spring is used to drive the third driving arm to reset to the unlocking position.

[0018] In a preferred embodiment, the unlocking component includes an unlocking fixing plate fixed to the base, an unlocking shaft arranged on the unlocking fixing plate, an unlocking arm hinged to the unlocking shaft at one side, and an unlocking driving part connected to the side of the unlocking arm away from the base; the side of the unlocking arm close to the unlocking driving part abuts against the second driving arm; the unlocking driving part is used to drive the unlocking arm to rotate, so as to带动 the stop claw to rotate, thereby解除 the locking state of the second convex on the first convex.

[0019] In a preferred embodiment, a second torsion spring is sleeved on the unlocking shaft, and the second torsion spring is used to drive the unlocking arm to reset to the initial position.

[0020] In a preferred embodiment, the extension heights of both the first convex and the second convex are less than the minimum distance between the second card plate and the stop claw, and the sum of the extension heights of the first convex and the second convex is greater than the minimum distance between the second card plate and the stop claw.

[0021] The present invention also provides an automotive sliding door, including the automotive sliding door self - suction lock according to any one of the above - mentioned embodiments.

[0022] The automotive sliding door self - suction lock and the automotive sliding door provided by the present invention drive the first driving arm to rotate from the unlocking position to the locking position through the self - suction component, and带动 the stop claw to rotate through the unlocking component to解除 the locking state of the second convex on the first convex. The overall structure is simple, small in volume, and small in unlocking force, so it is not easy to deform during self - suction, the manufacturing process is simple, the structure is reliable, it can meet various use conditions, and the service life is improved. In addition, the assembly structure of the present invention belongs to a "C" - shaped cantilever, with both ends of the structure fixed and the middle stressed, which is better than the traditional "L" - shaped cantilever.

Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A three-dimensional diagram of the self-priming lock for a sliding door of an automobile provided by the present invention;

[0025] Figure 2 for Figure 1 A three-dimensional view of the car sliding door self-priming lock from another angle;

[0026] Figure 3 for Figure 1 A three-dimensional view of the vehicle sliding door self-priming lock from another angle;

[0027] Figure 4 for Figure 1 A three-dimensional view of the interior of the base of the self-priming lock for a sliding door of an automobile;

[0028] Figure 5 for Figure 1 The diagram shows the internal structure of the car's sliding door self-priming lock with some of the obstructions hidden;

[0029] Figure 6 for Figure 5 The diagram shows the internal structure of the car sliding door self-priming lock with part of the obstruction further hidden.

[0030] Numbers in the figure: 100, car sliding door self-priming lock; 10, first clamping plate; 101, first locking groove; 20, second clamping plate; 21, first central axis; 211, first mounting groove; 22, first driving arm; 23, first clamping protrusion; 24, first coil spring; 30, locking claw; 31, second central axis; 311, second mounting groove; 32, second driving arm; 33, second clamping protrusion; 34, second coil spring; 40, self-priming assembly; 41, self-priming fixing plate ;42. Self-priming shaft;43. Self-priming arm;44. Self-priming drive unit;45. Third drive arm;46. First torsion spring;50. Unlocking assembly;51. Unlocking fixing plate;52. Unlocking shaft;53. Unlocking arm;54. Unlocking drive unit;55. Second torsion spring;56. Limiting block;60. Base;61. Seat plate;611. Second locking groove;62. Connecting plate;63. Cover plate;631. Avoidance hole;64. Fixing groove;601. Accommodating groove. [Specific implementation method]

[0031] In order to make the purpose, technical solution and beneficial technical effects of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0032] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0034] In an embodiment of the present invention, a vehicle sliding door self-priming lock 100 is provided for self-priming locking and unlocking a sliding door of a vehicle, for example, manual door locking or sliding door locking of a vehicle such as an MPV.

[0035] like Figure 1-Figure 3 As shown, the automobile sliding door self-priming lock 100 includes: a first clamping plate 10, a second clamping plate 20, a locking claw 30, a self-priming component 40, an unlocking component 50 and a base 60.

[0036] The base 60 is used to be fixed to other parts of the vehicle. The base 60 includes a seat plate 61, a connecting plate 62 vertically connected to the seat plate 61, and a cover plate 63 located on the side of the connecting plate 62 away from the seat plate 61. The seat plate 61 and the cover plate 63 can be fixed together by rivets, which simplifies the assembly process. Specifically, the seat plate 61, the connecting plate 62, and the cover plate 63 are collectively arranged to form a receiving groove 601. The second clamping plate 20 and the locking claw 30 are both accommodated in the receiving groove 601 to prevent the second clamping plate 20 and the locking claw 30 from falling off the base 60 and without affecting their movement within the receiving groove 601.

[0037] The first clip 10 is rotatably connected to the bottom of the base 60 and is used to lock or unlock the sliding door. The shape of the first clip 10 can be designed according to the specific locking requirements. In this embodiment, the first clip 10 includes a first locking groove 101, which is used to accommodate the locking component of the sliding door. The base plate 61 defines a second locking groove 611. When the first clip 10 is rotated to the position directly below the base 60, the sidewalls of the first locking groove 101 drive the locking component into the second locking groove 611. The sidewalls of the first locking groove 101 seal the opening of the second locking groove 611, and the sidewalls of the second locking groove 611 seal the opening of the first locking groove 101, thereby confining the locking component within the second locking groove 611 and locking the vehicle door. When the first clip 10 rotates to form an acute angle with the base plate 61, the opening of the first locking groove 101 opens, facilitating the release of the locking component from the first clip 10. Of course, in other embodiments, the first clamping plate 10 may also achieve the locking function through other locking methods, and is not limited to the above exemplary embodiments.

[0038] Combine Figure 6 As shown, the second card plate 20 is rotatably connected to the side of the base 60 facing away from the first card plate 10 and is coaxially fixedly connected to the first card plate 10. The first card plate 10 and the second card plate 20 are connected via a first central shaft 21 having a chamfered edge structure. That is, the first central shaft 21 is cylindrical and has a chamfered edge on at least one side. Accordingly, the first card plate 10 and the second card plate 20 are provided with matching circular holes with chamfered edges, so that the first card plate 10 and the second card plate 20 can both be mounted on the first central shaft 21 without relative rotation, while also allowing the second card plate 20 to drive the first card plate 10 to rotate.

[0039] The edge of the second card plate 20 extends outward to form a first drive arm 22 and a first latching protrusion 23. In this embodiment, the second card plate 20 is substantially circular, and the first drive arm 22 and the first latching protrusion 23 extend from the circumference of the second card plate 20, thereby forming a corresponding protrusion structure.

[0040] Combine Figure 6 As shown, the pawl 30 is rotatably connected to the base 60 and positioned adjacent to the second retaining plate 20. Its edges extend outward to form a second driving arm 32 and a second retaining protrusion 33. Specifically, the pawl 30 is connected to the base 60 via a second central shaft 31 with a chamfered edge. In this embodiment, the pawl 30 is generally circular in shape, with the second driving arm 32 and the second retaining protrusion 33 extending from the circumference of the pawl 30 to form corresponding raised structures. The second driving arm 32 and the second retaining protrusion 33 are located on opposite sides of the pawl 30.

[0041] It should be noted that the extended heights of the first and second latching protrusions 23, 33 are both less than the minimum spacing between the second clamping plate 20 and the locking claw 30, and the sum of the extended heights of the first and second latching protrusions 23, 33 is greater than the minimum spacing between the second clamping plate 20 and the locking claw 30. The extended height of the first latching protrusion 23 is the distance between the free end of the first latching protrusion 23 and the circumference of the second clamping plate 20, and the extended height of the second latching protrusion 33 is the distance between the free end of the second latching protrusion 33 and the circumference of the locking claw 30.

[0042] Because the extended heights of the first and second latching protrusions 23, 33 are both less than the minimum spacing between the second clamping plate 20 and the locking claw 30, the first latching protrusion 23 can pass through the gap between the second clamping plate 20 and the locking claw 30, thereby abutting against the second latching protrusion 33. Furthermore, because the sum of the extended heights of the first and second latching protrusions 23, 33 is greater than the minimum spacing between the second clamping plate 20 and the locking claw 30, the second latching protrusion 33 can abut against the side surface of the first latching protrusion 23, preventing the first latching protrusion 23 from rotating freely, thereby ultimately locking the rotational state of the second clamping plate 20. Furthermore, the side surfaces of the first and second latching protrusions 23, 33 can be curved surfaces to facilitate the first latching protrusion 23 to engage the locking limit point of the second latching protrusion 33.

[0043] Further, combined Figure 4 As shown, a first coil spring 24 is provided on the side of the second clamping plate 20 facing away from the base 60. When the first clamping plate 10 is unlocked, the first coil spring 24 drives the first driving arm 22 to rotate from the locked position A and maintain it in the unlocked position B, so that the first driving arm 22 abuts against the self-priming assembly 40. In other words, the first coil spring 24 has a tendency to disengage the first latching protrusion 23 and the second latching protrusion 33, thereby restoring the second clamping plate 20 and maintaining the first clamping plate 10 in the unlocked state.

[0044] A first mounting slot 211 is defined at the end of the first central shaft 21 away from the second retaining plate 20. A fixing slot 64 is also defined on the base 60. One end of the first coil spring 24 is mounted in the first mounting slot 211, while the other end is mounted within the fixing slot 64. When the first driving arm 22 rotates from the unlocked position B (i.e., the initial position) to the locked position A (i.e., the locked limit position between the second retaining protrusion 33 and the first retaining protrusion 23), the first coil spring 24 is tensioned, thereby providing elastic potential energy to the first coil spring 24.

[0045] Further, combined Figure 4As shown, a second coil spring 34 is provided on the side of the locking pawl 30 facing away from the base 60. Both the first coil spring 24 and the second coil spring 34 are accommodated within the accommodating groove 601. The winding direction of the first coil spring 24 is opposite to that of the second coil spring 34. Specifically, the first coil spring 24 tends to disengage the first latching protrusion 23 from the second latching protrusion 33, while the second coil spring 34 tends to maintain the second latching protrusion 33 locked to the first latching protrusion 23. Because the first latch plate 10, to which the first coil spring 24 is connected, is locked to the sliding door, it experiences greater resistance, while the locking pawl 30 experiences less resistance. Therefore, the second coil spring 34 forces the locking pawl 30 to contact its limit point, maintaining the locked state. Furthermore, after the unlocking action is completed, the locking pawl 30 is returned to its initial state by the second coil spring 34. The stop claw 30 may also be provided with a limit block 56 on the base, and the second coil spring 34 will drive the second driving arm 32 to reset to the position where it hits the limit block 56 of the stop claw 30 .

[0046] A second mounting slot 311 is defined at one end of the second central shaft 31 away from the locking claw 30 . One end of the second coil spring 34 is mounted in the second mounting slot 311 , and the other end is mounted in the fixing slot 64 .

[0047] In an embodiment of the present invention, Figure 5 As shown, the self-priming assembly 40 is used to drive the first driving arm 22 to rotate from the unlocking position B to the locking position A, so that the second latching protrusion 33 locks the first latching protrusion 23, thereby maintaining the first latching plate 10 in a locked state through the second latching plate 20.

[0048] Furthermore, the cover plate 63 defines a clearance hole 631 for the end of the first driving arm 22 away from the base plate 61 to pass through. The shape of the clearance hole 631 corresponds to the trajectory of the first driving arm 22 as it rotates from the unlocked position B to the locked position A. Specifically, the clearance hole 631 is an arc-shaped hole, with the end away from the locking claw 30 representing the unlocked position B and the end closer to the locking claw 30 representing the locked position A.

[0049] Specifically, the self-priming assembly 40 includes a self-priming fixed plate 41 fixed on the base 60, a self-priming shaft 42 whose two ends are respectively connected to the base 60 and the self-priming fixed plate 41, a self-priming arm 43 hinged on the self-priming shaft 42 on one side, and a self-priming drive unit 44 connected to the self-priming arm 43 away from the side of the self-priming shaft 42. That is, the self-priming drive unit 44 is eccentrically arranged relative to the self-priming shaft 42. In the present embodiment, the self-priming drive unit 44 is a cable, which can drive the self-priming arm 43 to rotate under electric or manual drive. The self-priming arm 43 is provided with a third drive arm 45 on the side close to the cover plate 63. The third drive arm 45 is used to drive the first drive arm 22 to rotate from the unlocking position B to the locking position A under the drive of the self-priming drive unit 44. At this time, since the first latch 23 rotates synchronously with the first drive arm 22, the first latch 23 will be stuck by the second latch 33 to be locked.

[0050] Furthermore, a first torsion spring 46 is sleeved on the self-priming shaft 42. The first torsion spring 46 is used to drive the third driving arm 45 to return to the unlocked position B. That is, after the third driving arm 45 drives the first driving arm 22 to the locked position A, the self-priming driving portion 44 is released, and the self-priming arm 43 is reset by the action of the first torsion spring 46, causing the third driving arm 45 to move to the unlocked position B, allowing the next locking action to be performed without hindering the unlocking of the second clamping plate 20.

[0051] In an embodiment of the present invention, Figure 5 As shown, the unlocking assembly 50 abuts against the second driving arm 32 to drive the locking claw 30 to rotate so that the second locking protrusion 33 releases the locking state of the first locking protrusion 23, thereby releasing the locking state of the first clamping plate 10.

[0052] Specifically, the unlocking assembly 50 includes an unlocking fixing plate 51 fixed to the base 60, an unlocking shaft 52 disposed on the unlocking fixing plate 51, an unlocking arm 53 hingedly connected to the unlocking shaft 52, and an unlocking drive unit 54 connected to the side of the unlocking arm 53 facing away from the base 60. The side of the unlocking arm 53 closest to the unlocking drive unit 54 abuts the second drive arm 32. The length between the unlocking drive unit 54 and the unlocking shaft 52 is greater than the length of the unlocking arm 53 on the side opposite the unlocking shaft 52, thereby forming a force-saving lever structure. The unlocking drive unit 54 is a cable that can be driven electrically or manually to rotate the unlocking arm 53, thereby driving the locking pawl 30 to rotate, thereby causing the second latching protrusion 33 to release the locking state of the first latching protrusion 23.

[0053] Furthermore, a second torsion spring 55 is sleeved on the unlocking shaft 52. The second torsion spring 55 is used to drive the unlocking arm 53 to return to the initial position.

[0054] It should be noted that the lever connection between the unlocking arm 53 and the pawl 30 is simple and labor-saving. The single transmission chain does not generate excess torque, resulting in a low unlocking force and a compact structure. The initial position of the unlocking arm 53 is limited by the base 60. That is, the end of the unlocking arm 53 away from the unlocking drive 54 is simultaneously abutted by the step structure of the unlocking drive 54 and the base 60. Therefore, the unlocking arm 53 and the second coil spring 34 jointly limit the pawl 30, preventing the pawl 30 from rotating too much, which would also cause the first latching protrusion 23 to disengage from the locked state of the second latching protrusion 33.

[0055] The unlocking process principle of the present invention is:

[0056] The unlocking drive motor or external force drives the cable of the unlocking drive unit 54, which drives the unlocking arm 53 to rotate about the unlocking shaft 52. This allows the portion of the unlocking arm 53 that is closest to the unlocking drive unit 54, bounded by the unlocking shaft 52, to pry the second driving arm 32 of the locking pawl 30, causing the second driving arm 32 to move simultaneously with the unlocking arm 53. At this time, the second clamping plate 20 is released from the lock of the second latching protrusion 33 and is reset by the first coil spring 24 (i.e., the first driving arm 22 rotates from the locked position A to the unlocked position B). Since the first clamping plate 10 and the second clamping plate 20 are fixedly connected by the first central axis 21, the first clamping plate 10 moves to the unlocked position B simultaneously with the second clamping plate 20, thereby maintaining the unlocked state. When the unlocking action is completed, the locking pawl 30 and the unlocking arm 53 are reset to their initial state by the second torsion spring 55.

[0057] The locking process principle of the present invention is:

[0058] When electrically driven, the cable of the self-priming drive unit 44 pulls the self-priming arm 43 to rotate about the self-priming shaft 42. Because the third drive arm 45 abuts the first drive arm 22, the first drive arm 22 absorbs the thrust of the third drive arm 45, which in turn drives the second clip 20 from the unlocked position B to the locked position A. Because the first and second clips 10 and 20 are fixedly connected via the first central axis 21, the first clip 10 moves simultaneously with the second clip 20. When the second clip 20 moves, the first latch 23 of the second clip 20 pushes the stop pawl 30 to rotate via the second latch 33. When the two clips rotate to a predetermined position, the second clip 20 is locked by the second latch 33 of the stop pawl 30 with the second coil spring 34, thereby locking the first and second clips 10 and 20. After the second clip 20 is locked, the self-priming arm 43 is reset to its initial position via the first torsion spring 46.

[0059] It can be understood that the assembly structure of the unlocking fixed plate 51 and the self-suction fixed plate 41 belongs to a "C"-shaped cantilever. The two ends of the structure are fixed and the middle is stressed, ensuring that it is not easily deformed under stress, which is better than the traditional "L"-shaped cantilever. Among them, after the parts of the present invention are formed, only the riveting process is involved. The internal stress of the assembly after riveting is small, and the unlocking module is optimized. The unlocking stroke belongs to a labor-saving mechanism. At the same time, the opening stroke of the present invention is small and the overtravel is large, and it can be adapted to a variety of unlocking mechanisms.

[0060] The present invention also provides an automotive sliding door, including the automotive sliding door self-suction lock 100 as described in any one of the above embodiments.

[0061] In summary, the automotive sliding door self-suction lock 100 and the automotive sliding door provided by the present invention drive the first driving arm 22 to rotate from the unlocking position B to the locking position A through the self-suction component 40, and the unlocking component 50带动 the detent pawl 30 to rotate so that the second convex 33 releases the locking state of the first convex 23. The overall structure is simple, small in volume, and small in unlocking force, so it is not easily deformed during self-suction, the manufacturing process is simple, the structure is reliable, it can meet various use conditions, and the service life is improved. In addition, the assembly structure of the present invention belongs to a "C"-shaped cantilever, with the two ends of the structure fixed and the middle stressed, which is better than the traditional "L"-shaped cantilever.

[0062] The present invention is not limited only to what is described in the specification and embodiments, so additional advantages and modifications can be easily achieved by those skilled in the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A car sliding door self-priming lock, characterized in that: include: base; a first clamping plate, the first clamping plate being rotatably connected to the bottom of the base and being used for locking or unlocking the sliding door; a second card plate, the second card plate being rotatably connected to a side of the base facing away from the first card plate and being coaxially fixedly connected to the first card plate; edges of the second card plate extending outwardly form a first driving arm and a first card protrusion, respectively; A locking claw rotatably connected to the base and disposed adjacent to the second clamping plate, with edges extending outward to form a second driving arm and a second clamping protrusion; a self-priming assembly, the self-priming assembly being used to drive the first driving arm to rotate from an unlocked position to a locked position, so that the second latching protrusion locks the first latching protrusion, thereby maintaining the first latching plate in a locked state through the second latching plate; An unlocking component is in contact with the second driving arm and is used to drive the locking claw to rotate so that the second latching protrusion releases the locking state of the first latching protrusion, thereby releasing the locking state of the first clamping plate.

2. The automobile sliding door self-priming lock according to claim 1, characterized in that: A first coil spring is provided on a side of the second clamping plate facing away from the base, and a second coil spring is provided on a side of the locking claw facing away from the base, wherein the winding direction of the first coil spring is opposite to the winding direction of the second coil spring; when the first clamping plate is unlocked, the first coil spring drives the first driving arm to rotate from the locked position and maintain it in the unlocked position, so that the first driving arm abuts against the self-priming component; The second coil spring is used to drive the locking claw so that the second locking protrusion maintains a locking state with respect to the first locking protrusion.

3. The automobile sliding door self-priming lock according to claim 2, characterized in that: The first clamping plate and the second clamping plate are connected by a first central axis with a chamfered structure, and a first mounting groove is provided at an end of the first central axis away from the second clamping plate; the stopping claw is connected to the base through a second central axis with a chamfered structure, and a second mounting groove is provided at an end of the second central axis away from the stopping claw; a fixing groove is also provided on the base; one end of the first coil spring is installed in the first mounting groove, and the other end is installed in the fixing groove; one end of the second coil spring is installed in the second mounting groove, and the other end is installed in the fixing groove.

4. The automobile sliding door self-priming lock according to claim 2, characterized in that: The base includes a seat plate, a connecting plate vertically connected to the seat plate, and a cover plate provided on the side of the connecting plate away from the seat plate; the seat plate, the connecting plate and the cover plate are jointly arranged to form a accommodating groove, and the second clamping plate, the stopping claw, the first coil spring and the second coil spring are all accommodated in the accommodating groove; the cover plate is provided with an avoidance hole for the first driving arm to pass through one end away from the seat plate, and the shape of the avoidance hole is consistent with the trajectory shape of the first driving arm when it rotates from the unlocking position to the locking position.

5. The automobile sliding door self-priming lock according to claim 4, characterized in that: The self-priming component includes a self-priming fixing plate fixed on the base, a self-priming shaft with two ends respectively connected to the base and the self-priming fixing plate, a self-priming arm hinged to the self-priming shaft on one side, and a self-priming driving part connected to the side of the self-priming arm away from the self-priming shaft; a third driving arm is provided on the side of the self-priming arm close to the cover plate, and the third driving arm is used to drive the first driving arm to rotate from the unlocking position to the locking position under the drive of the self-priming driving part.

6. The automobile sliding door self-priming lock according to claim 5, characterized in that: A first torsion spring is sleeved on the self-priming shaft, and the first torsion spring is used to drive the third driving arm to return to the unlocking position.

7. The automobile sliding door self-priming lock according to claim 1, characterized in that: The unlocking assembly includes an unlocking fixing plate fixed to the base, an unlocking shaft provided on the unlocking fixing plate, an unlocking arm hinged on one side of the unlocking shaft, and an unlocking driving portion connected to a side of the unlocking arm away from the base; The unlocking arm is in contact with the second driving arm on one side close to the unlocking driving portion; The unlocking driving portion is used to drive the unlocking arm to rotate, so as to drive the locking claw to rotate, thereby allowing the second locking protrusion to release the locking state of the first locking protrusion.

8. The automobile sliding door self-priming lock according to claim 7, characterized in that: A second torsion spring is sleeved on the unlocking shaft, and the second torsion spring is used to drive the unlocking arm to return to an initial position.

9. The automobile sliding door self-priming lock according to claim 1, characterized in that: The extended heights of the first and second clamping protrusions are both smaller than the minimum distance between the second clamping plate and the stopping claw, and the sum of the extended heights of the first and second clamping protrusions is larger than the minimum distance between the second clamping plate and the stopping claw.

10. A sliding door for an automobile, characterized in that: It comprises the automobile sliding door self-priming lock according to any one of claims 1 to 9.

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