Door lock mechanism and vehicle

Abstract

The invention discloses a door lock mechanism and a vehicle, the door lock mechanism comprises a shell, a ratchet wheel and a pawl, the pawl comprises a floating support and a floating claw, and when the door lock mechanism is switched from an unlocking state to an upward locking state, the ratchet wheel pushes the floating claw to rotate relative to the floating support; when the door lock mechanism is switched from the locking state to the unlocking state, the floating claw is pushed by the floating support to rotate synchronously with the floating support, and the ratchet wheel rotates along with rotation of the floating claw. When the door lock mechanism is switched from the unlocking state to the locking state, the floating claw independently rotates relative to the shell, the floating support is kept fixed relative to the shell, only the floating claw impacts the ratchet wheel, and the mass and rotational inertia of the floating claw are small, so that the impact inertia and impact energy when the pawl impacts the ratchet wheel can be reduced, and vibration and impact abnormal sound are further reduced.

Description

Technical Field

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

[0002] Door locks are used to lock or unlock car doors when they are opened or closed. Currently, the lock is usually controlled by the engagement and disengagement of a pawl and a ratchet. When the user opens or closes the door, the pawl collides with the ratchet. To ensure structural strength, the pawl is usually made of metal, which makes the pawl have a large mass and moment of inertia. It is easy to vibrate during the impact, resulting in a large impact noise. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a door lock mechanism that can reduce vibration and abnormal sound when the ratchet wheel and the pawl collide.

[0004] The present invention also provides a vehicle having the door lock mechanism.

[0005] According to the first aspect of the present invention, the door lock mechanism is used to cooperate with the lock on the vehicle to switch between a locked state and an unlocked state. The door lock mechanism includes a shell, a ratchet and a pawl, and the ratchet is rotatably connected to the shell; the pawl includes a floating bracket and a floating pawl, and the floating bracket and the floating pawl are both rotatably connected to the shell; wherein, when the door lock mechanism switches from the unlocked state to the locked state, the ratchet pushes the floating pawl to rotate relative to the floating bracket, and the floating bracket is relatively fixed to the shell; when the door lock mechanism switches from the locked state to the unlocked state, the floating pawl is pushed by the floating bracket and rotates synchronously with the floating bracket, and the ratchet rotates following the rotation of the floating pawl.

[0006] The door lock mechanism according to the embodiment of the present invention has at least the following beneficial effects: In the present invention, when the door lock mechanism switches from the unlocked state to the locked state, the floating pawl rotates alone relative to the shell, the floating bracket remains fixed relative to the shell, and only the floating pawl hits the ratchet. Since the mass and rotational inertia of the floating pawl are small, the impact inertia and impact energy when the pawl collides with the ratchet can be reduced, thereby reducing vibration and abnormal impact noise.

[0007] According to some embodiments of the present invention, the floating bracket has a first abutment portion, and the floating claw has a second abutment portion. When the door lock mechanism switches from the unlocked state to the locked state, the first abutment portion and the second abutment portion are separated from each other; when the door lock mechanism switches from the locked state to the unlocked state, the first abutment portion abuts against the second abutment portion.

[0008] According to some embodiments of the present invention, the first abutting portion is provided to protrude toward the floating claw along the arrangement direction of the floating bracket and the floating claw, and / or the second abutting portion is provided to protrude toward the floating bracket along the arrangement direction of the floating bracket and the floating claw; When the door lock mechanism switches from the locked state to the unlocked state, the first abutting portion abuts against the second abutting portion and pushes the floating claw to rotate.

[0009] According to some embodiments of the present invention, the door lock mechanism further includes an elastic member connected to the floating claw and configured to provide the floating claw with an elastic force causing the second abutting portion to move toward the first abutting portion.

[0010] According to some embodiments of the present invention, the first abutting portion is located between the second abutting portion and the ratchet, the pawl is located between the ratchet and the elastic member, one end of the elastic member facing the ratchet is connected to the floating pawl, and the other end is connected to the housing.

[0011] According to some embodiments of the present invention, a first transition portion and a second transition portion are connected to each other on a circumferential side of the ratchet wheel, and along the circumference of the ratchet wheel, a rotation radius of one of the first transition portion and the second transition portion gradually increases, while a rotation radius of the other gradually decreases; During the process of switching the door lock mechanism from the unlocked state to the locked state, when the floating claw abuts against the first transition part, the floating claw gradually moves away from the floating bracket; when the floating claw abuts against the second transition part, the floating claw gradually approaches the floating bracket; when the door lock mechanism is in the locked state and the unlocked state, the ratchet abuts against the floating claw. According to some embodiments of the present invention, the door lock mechanism further includes a driving component, the driving component being mounted on the housing, the driving component being connected to the floating bracket, and being configured to drive the floating bracket to rotate the floating claw when the door lock mechanism switches from the locked state to the unlocked state; And / or, the shell has a limiting groove for the lock catch to be inserted, and the ratchet has a locking tooth and a locking groove located on one side of the locking tooth; when the door lock mechanism switches from the unlocked state to the locked state, the lock catch is inserted into the limiting groove and the locking groove, and pushes the ratchet to rotate; when the door lock mechanism is in the locked state, the locking tooth can limit each other with the lock catch.

[0012] According to some embodiments of the present invention, the door lock mechanism further includes a first buffer portion and a second buffer portion mounted on the housing, the first buffer portion and the second buffer portion being made of a flexible material, and when the door lock mechanism is in the locked state, the circumferential side of the ratchet abuts against the first buffer portion, and the second buffer portion is capable of abutting against the lock catch; And / or, the door lock mechanism further comprises a third buffer portion mounted on the housing, the third buffer portion being made of a flexible material, and when the door lock mechanism is in the unlocked state, the circumferential side of the ratchet abuts against the third buffer portion; And / or, the door lock mechanism also includes a fourth buffer portion, which is made of a flexible material. The fourth buffer portion is located between the floating bracket and the shell, and is used to abut against the floating bracket when the door lock mechanism switches from the locked state to the unlocked state.

[0013] According to some embodiments of the present invention, the door lock mechanism includes a first buffer portion, a second buffer portion, a third buffer portion, and a fourth buffer portion mounted on the housing and made of a flexible material; when the door lock mechanism is in the locked state, the peripheral side of the ratchet abuts against the first buffer portion, and the second buffer portion is capable of abutting against the lock catch; when the door lock mechanism is in the unlocked state, the peripheral side of the ratchet abuts against the third buffer portion; the fourth buffer portion is located between the floating bracket and the housing, and is used to abut against the floating bracket when the door lock mechanism switches from the locked state to the unlocked state; Wherein, the first buffer portion, the second buffer portion, the third buffer portion and the fourth buffer portion are integrally connected; and / or, the first buffer portion is arc-shaped on a side facing the ratchet; And / or, the second buffer portion has a plurality of recessed grooves; And / or, the hardness of the first buffer portion is H1, the hardness of the second buffer portion is H2, and the hardness of the third buffer portion is H3, and H2>H1>H3. A vehicle according to a second aspect of the present invention includes: The door lock mechanism in the embodiment of the first aspect; a vehicle body, on which the lock buckle is installed; a door body, wherein the door lock mechanism is mounted on the door body; When the door lock mechanism is in the locked state, the lock catch is locked with the door lock mechanism; when the door lock mechanism is in the unlocked state, the lock between the door lock mechanism and the lock catch is released.

[0014] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 A three-dimensional schematic diagram of an embodiment of a door lock mechanism of the present invention; Figure 2 is a schematic diagram of an embodiment of a pawl; Figure 3 for Figure 1 A schematic diagram of the door lock mechanism in the other direction after the housing is hidden; Figure 4 is a schematic diagram of the door lock mechanism in the unlocked state; Figure 5 is a schematic diagram of a door lock mechanism in a locked state; Figure 6 is a schematic diagram of an embodiment of a ratchet; Figure 7 A schematic diagram of an embodiment of a buffer component.

[0016] Reference numerals: Lock buckle 10; shell 100, limiting groove 110; ratchet 200, locking tooth 210, locking groove 220, first wall 221, second wall 222, first rotating shaft 230, first transition part 240, second transition part 250, first skeleton 260, first limiting part 261, second limiting part 262, third limiting part 263, first shell 270; pawl 300, floating pawl 310, second abutting part 311, second skeleton 312, second shell 313, floating bracket 320, first abutting part 321, notch 322, second rotating shaft 330; driving component 400, output shaft 410, driving edge 411; elastic member 500; buffer component 600, first buffer part 610, second buffer part 620, buffer protrusion 621, groove 622, third buffer part 630, fourth buffer part 640. DETAILED DESCRIPTION

[0017] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0019] In the description of the present invention, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0020] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0021] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0022] When the car door is opened or closed, the door is locked and unlocked through the door lock. Currently, the engagement and disengagement of the pawl and the ratchet are usually used to control the door lock. When the user opens or closes the door, the pawl and the ratchet collide and abut against each other to limit the position, so that the door lock can remain in the locked state or the unlocked state. In order to ensure the stability of the lock state and the service life of the door lock mechanism, the ratchet and pawl are usually made of metal, which makes the mass and rotational inertia of the pawl large, and the two impact each other during the collision, which is prone to low-frequency vibration and produces a large impact noise.

[0023] Based on the above, a door lock mechanism is provided in an embodiment of the present invention, which is used to cooperate with a lock buckle 10 on a vehicle to switch between a locked state and an unlocked state. The door lock mechanism can be installed on the vehicle door. When the door lock mechanism is in the locked state, the door lock mechanism and the lock buckle 10 are locked to lock the vehicle door closed on the vehicle body. When the door lock mechanism is in the unlocked state, the lock between the door lock mechanism and the lock buckle 10 is released, and the vehicle door can be opened relative to the vehicle body.

[0024] Reference Figure 1 The door lock mechanism includes a housing 100, a ratchet 200, and a pawl 300. The ratchet 200 and the pawl 300 are both rotatably connected to the housing 100. The housing 100 can be installed and fixed inside the vehicle door. When the ratchet 200 and the pawl 300 rotate relative to the housing 100, the current state of the door lock mechanism can be switched, causing the door lock mechanism to switch between the locked state and the unlocked state. During the process of switching between the locked state and the unlocked state, the ratchet 200 and the pawl 300 continue to rotate. When the ratchet 200 and the pawl 300 rotate until they collide with each other and abut against a limit position, the door lock mechanism switches to the locked state or the unlocked state. The abutment between the ratchet 200 and the pawl 300 allows the door lock mechanism to be stable in the locked state or the unlocked state.

[0025] In this embodiment, the pawl 300 includes a floating pawl 310 and a floating bracket 320. The floating pawl 310 and the floating bracket 320 are both rotatably connected to the shell 100. The floating pawl 310 can rotate independently relative to the shell 100. When the floating pawl 310 rotates independently, the floating bracket 320 remains stationary and remains relatively fixed with the shell 100. The floating pawl 310 rotates relative to the floating bracket 320. During this process, the floating pawl 310 and the floating bracket 320 are independent of each other, and only the floating pawl 310 in the pawl 300 participates in the movement. When the floating pawl 310 and the ratchet 200 rotate until the two collide and abut against each other, the ratchet 200 and the pawl 300 abut against the limit position, and the door lock mechanism switches to the locked state; when the door lock mechanism switches from the locked state to the unlocked state, the floating pawl 310 is pushed by the floating bracket 320 and rotates synchronously with the floating bracket 320 relative to the housing 100, and the ratchet 200 rotates following the rotation of the floating pawl 310, and when the floating pawl 310 and the ratchet 200 rotate until the two collide and abut against each other, the ratchet 200 and the pawl 300 abut against the limit position, and the door lock mechanism switches to the unlocked state.

[0026] It can be understood that when the door lock mechanism switches from the unlocked state to the locked state, since the floating pawl 310 rotates alone relative to the shell 100, the floating bracket 320 remains fixed relative to the shell 100, and only the floating pawl 310 hits the ratchet 200. Since the mass and moment of inertia of the floating pawl 310 are relatively small, the impact inertia and impact energy when the pawl 300 collides with the ratchet 200 can be reduced, thereby reducing vibration and abnormal impact noise.

[0027] When the door lock mechanism switches from the unlocked state to the locked state, the floating claw 310 rotates independently relative to the housing 100, and when the door lock mechanism switches from the locked state to the unlocked state, the floating claw 310 and the floating bracket 320 rotate synchronously relative to the housing 100; on the one hand, in the case where the user locks the car door by manually pushing and pulling the car door, since the pushing and pulling force applied by the user to the car door is uncontrollable, it is very easy to cause the pawl 300 and the ratchet 200 to collide strongly when the door lock mechanism switches to the locked state, and generate large vibrations and abnormal impact noises due to the impact; in this embodiment, when the door lock mechanism switches from the unlocked state to the locked state, the floating claw 310 rotates independently, and during this process, the rotational inertia of the movable part of the pawl 300 is small, which can reduce the impact inertia and improve the manual locking effect. The problem of large abnormal noise and vibration; on the other hand, when the door lock mechanism switches between the unlocked state and the locked state, the ratchet 200 only cooperates with the floating pawl 310. Among them, when the door lock mechanism switches from the unlocked state to the locked state, the ratchet 200 is active and the pawl 300 is driven. The floating pawl 310 is pushed by the ratchet 200 and rotates relative to the shell 100. When the door lock mechanism switches from the locked state to the unlocked state, the pawl 300 is active and the ratchet 200 is driven. The ratchet 200 follows the rotation of the floating pawl 310 and rotates relative to the shell 100. At the same time, the floating pawl 310 rotates synchronously with the floating bracket 320. Through the active and driven cooperation between the floating pawl 310 and the ratchet 200, the floating pawl 310 can rotate alone or synchronously with the floating bracket 320, so that the pawl 300 can cooperate with the movement requirements of the door lock mechanism in different states and reduce the collision energy between the pawl 300 and the ratchet 200 in the locked state. As will be appreciated, when the door lock mechanism switches between the locked and unlocked states, the floating pawl 310 and the floating bracket 320 have connected and disconnected states. When the door lock mechanism switches from the unlocked state to the locked state, the floating bracket 320 and the floating pawl 310 are disconnected, allowing the floating pawl 310 to rotate independently relative to the housing 100. The connection between the floating bracket 320 and the floating pawl 310 is not limited to abutment or plugging. When the door lock mechanism switches from the locked state to the unlocked state, the floating bracket 320 and the floating pawl 310 are connected, allowing them to rotate synchronously relative to the housing 100.

[0028] In one embodiment, referring to Figure 2When the door lock mechanism switches from the locked state to the unlocked state, the first abutment 321 abuts against the second abutment 311, and the ratchet 200 only cooperates with the floating pawl 310. When the door lock mechanism switches from the unlocked state to the locked state, the ratchet 200 acts as an active member to push the floating pawl 310 to rotate, and the floating bracket 320 remains stationary, and the first abutment 321 and the second abutment 311 are separated from each other. At this time, the floating bracket 320 and the floating pawl 310 are in a separated state, and the floating pawl 310 rotates independently relative to the housing 100; when the door lock mechanism switches from the locked state to the unlocked state, the first abutment 321 abuts against the second abutment 311. At this time, the floating bracket 320 and the floating pawl 310 are in a connected state, and the floating pawl 310 is pushed by the floating bracket 320 and rotates synchronously with the floating bracket 320 relative to the housing 100. The ratchet 300 acts as an active member to make the ratchet 200 rotate following the rotation of the floating pawl 310. It is understandable that the switching between the separation state and the connection state of the floating bracket 320 and the floating claw 310 can be achieved by the mutual abutment and separation between the first abutment portion 321 and the second abutment portion 311 , which is simple and easy to operate.

[0029] Specifically, in one embodiment, the first abutment portion 321 is protruded toward the floating claw 310 along the arrangement direction of the floating bracket 320 and the floating claw 310, and / or the second abutment portion 311 is protruded toward the floating bracket 320 along the arrangement direction of the floating bracket 320 and the floating claw 310, so as to facilitate the abutment and cooperation between the first abutment portion 321 and the second abutment portion 311; when the door lock mechanism switches from a locked state to an unlocked state, the first abutment portion 321 abuts against the second abutment portion 311, and pushes the floating claw 310 to rotate synchronously with the floating bracket 320.

[0030] For example, Figure 2 As shown, the floating bracket 320 and the floating pawl 310 are arranged along the rotation axis of the pawl 300, the first abutting portion 321 is located on the side of the floating bracket 320 facing the floating pawl 310, and / or the second abutting portion 311 is located on the side of the floating pawl 310 facing the floating bracket 320. Alternatively, in another embodiment, the pawl 300 and the ratchet 200 are arranged along a first direction, and the floating pawl 310 and the floating bracket 320 are arranged along a second direction, the first direction, the second direction, and the rotation axis of the pawl 300 are perpendicular to each other, the first abutting portion 321 is located on the side of the floating bracket 320 facing the floating pawl 310, and / or the second abutting portion 311 is located on the side of the floating pawl 310 facing the floating pawl 310.

[0031] In the case where the floating bracket 320 and the floating claw 310 are arranged along the rotation axis direction of the pawl 300, the floating bracket 320 and the floating claw 310 can be rotatably connected to the shell 100 based on the same rotation axis, and the floating bracket 320 is located between the floating claw 310 and the shell 100. The floating claw 310, the floating bracket 320 and the shell 100 are arranged in a stacked state, making the assembly of the pawl 300 and the shell 100 more compact.

[0032] In the initial stage of switching the door lock mechanism from the locked state to the unlocked state, the floating pawl 310 is pushed by the floating bracket 320 to swing toward the ratchet 200, or the floating pawl 310 is pushed by the floating bracket 320 to swing away from the ratchet 200. In the case where the floating pawl 310 is pushed by the floating bracket 320 to swing toward the ratchet 200, the first abutting portion 321 and the second abutting portion 311 are both located on the side of the pawl 300 facing the ratchet 200. When the door lock mechanism is in the locked state, the first abutting portion 321 abuts against the side of the second abutting portion 311 facing away from the ratchet 200. When the door lock mechanism begins to switch from the locked state to the unlocked state, the first abutting portion 321 pushes the second abutting portion 311 toward the ratchet 200, causing the floating pawl 310 to rotate toward the ratchet 200. In the case where the floating pawl 310 is pushed by the floating bracket 320 to swing back toward the ratchet 200, the first abutment portion 321 and the second abutment portion 311 are both located on the side of the pawl 300 facing away from the ratchet 200. When the door lock mechanism is in the locked state, the first abutment portion 321 abuts against the side of the second abutment portion 311 facing the ratchet 200. When the door lock mechanism starts to switch from the locked state to the unlocked state, the first abutment portion 321 pushes the second abutment portion 311 back toward the ratchet 200, causing the floating pawl 310 to rotate back toward the ratchet 200.

[0033] For example, the first abutting portion 321 and the second abutting portion 311 are both located on the side of the pawl 300 facing away from the ratchet wheel 200. Figure 2 In the illustrated embodiment, the second abutting portion 311 protrudes toward the floating bracket 320 along the rotation axis of the pawl 300 , and the first abutting portion 321 is disposed on the side of the floating bracket 320 facing away from the ratchet 200 . When the door lock mechanism is in the locked state and the unlocked state, the second abutment portion 311 abuts against the side of the first abutment portion 321 facing away from the ratchet 200; when the door lock mechanism switches from the locked state to the unlocked state, the first abutment portion 321 pushes the second abutment portion 311 away from the ratchet 200, causing the floating claw 310 to rotate away from the ratchet 200, and the ratchet 200 rotates following the rotation of the floating claw 310 until the door lock mechanism switches to the unlocked state; when the door lock mechanism switches from the unlocked state to the locked state, the ratchet 200 pushes the floating claw 310 to rotate, and the floating claw 310 swings in the direction away from the ratchet 200, the first abutment portion 321 separates from the second abutment portion 311, and the floating claw 310 rotates alone until the door lock mechanism switches to the locked state.

[0034] Alternatively, in another embodiment, one of the first abutting portion 321 and the second abutting portion 311 is set as a protrusion, and the other is set as one of the inner walls of the groove. The protrusion and the groove are respectively set on the side facing each other of the first abutting portion 321 and the second abutting portion 311. The protrusion is always inserted into the groove and can slide in the groove. When the protrusion abuts against one of the inner walls of the groove, the first abutting portion 321 abuts against the second abutting portion 311. When the protrusion moves away from the inner wall of the groove by sliding in the groove, the first abutting portion 321 is separated from the second abutting portion 311.

[0035] Reference Figures 3 to 5 The door lock mechanism also includes a drive component 400, which is used to provide rotational power to the floating bracket 320 when the door lock mechanism switches from the locked state to the unlocked state. The housing 100 has a retaining groove 110 for inserting the lock catch 10. The ratchet 200 has a locking tooth 210 and a locking groove 220 located on one side of the locking tooth 210. Both the retaining groove 110 and the locking groove 220 are used to cooperate with the lock catch 10 to switch the door lock mechanism to the locked state.

[0036] The locking groove 220 has a first wall 221 away from the locking tooth 210 and a second wall 222 close to the locking tooth 210. The length of the first wall 221 is greater than the length of the second wall 222. Figure 4 When the door lock mechanism switches from the unlocked state to the locked state, the lock catch 10 abuts against the protruding area of ​​the first wall 221 compared to the second wall 222, and gradually moves toward the depth of the limiting groove 110. During the movement of the lock catch 10, the ratchet 200 is driven to rotate, and the ratchet 200, as an active member, drives the floating claw 310 to rotate; as the ratchet 200 rotates, the abutting position of the lock catch 10 and the ratchet 200 moves toward the depth of the locking groove 220. When at least part of the lock catch 10 moves between the first wall 221 and the second wall 222 and is simultaneously inserted into the locking groove 220 and the limiting groove 110, the lock catch 10 is limited by the locking teeth 210. At this time, the door lock mechanism switches to the locked state (such as Figure 5 ).

[0037] Specifically, the ratchet 200 is rotatably connected to the housing 100 via the first rotating shaft 230 . The torsion spring is sleeved on the outside of the first rotating shaft 230 , and two ends of the torsion spring are respectively in contact with the first rotating shaft 230 and the housing 100 . When the door lock mechanism switches from the unlocked state to the locked state, the ratchet 200 is pushed by the lock buckle 10 to rotate around the first rotation direction. During this process, the torsion spring is compressed and accumulates elastic force. The ratchet 200 acts as an active component to push the floating claw 310 to rotate alone until the door lock mechanism switches to the locked state; when the door lock mechanism switches from the locked state to the unlocked state, the driving component 400 drives the floating bracket 320 to rotate, and the floating bracket 320 pushes the floating claw 310 to rotate synchronously with the floating bracket 320. The elastic force of the torsion spring is released and causes the ratchet 200 to rotate around the second rotation direction. The first rotation direction is opposite to the second rotation direction. When the ratchet 200 rotates to the opening of the locking groove 220 and connects with the limiting groove 110, the lock buckle 10 can withdraw from the locking groove 220 and the limiting groove 110. At this time, the lock between the door lock mechanism and the lock buckle 10 is released.

[0038] It is understood that the PWN algorithm can be used to control the rotational speed of the floating bracket 320 driven by the drive component 400, thereby ensuring smooth rotation between the floating pawl 310 and the ratchet 200 and reducing abnormal noise when the door lock mechanism switches to the unlocked state. The drive component 400 is not limited to driving the floating bracket 320 in a manner that is eccentric to the rotation center of the floating bracket 320, the drive component 400 providing linear force and driving the floating bracket 320 to swing about the rotation center; or the drive component 400 is connected to the rotation center of the floating bracket 320, providing rotational force and driving the floating bracket 320 to rotate about the rotation center.

[0039] Taking the linear power provided by the driving component 400 as an example, when the door lock mechanism switches from the unlocked state to the locked state, the output end of the driving component 400 retreats, or the driving component 400 retreats as a whole, and the driving component 400 withdraws the drive to the floating bracket 320. Since the ratchet 200 only cooperates with the floating claw 310, the ratchet 200 acts as an active component and pushes the floating claw 310 to rotate synchronously when rotating relative to the housing 100. The floating bracket 320 remains stationary, the first abutting portion 321 separates from the second abutting portion 311, and the floating claw 310 and the floating bracket 320 switch to a separated state. , only the floating pawl 310 in the pawl 300 rotates alone; when the door lock mechanism switches from the locked state to the unlocked state, the output end of the driving component 400 extends or the driving component 400 moves as a whole toward the floating bracket 320, and the driving component 400 is connected to the floating bracket 320 and drives the floating bracket 320 to rotate. The first abutting portion 321 and the second abutting portion 311 are in an abutting state, and the floating pawl 310 is pushed by the floating bracket 320 and rotates synchronously with the floating bracket 320. The pawl 300 acts as an active component, causing the ratchet 200 to rotate following the rotation of the pawl 300.

[0040] Therefore, the floating bracket 320 has a state of being connected to the driving component 400 and a state of being separated from the driving component 400. When the output end of the driving component 400 retracts, the driving component 400 is separated from the floating bracket 320, and the ratchet 200 acts as an active component to push the floating claw 310 to rotate alone, and the floating claw 310 is separated from the floating bracket 320; when the output end of the driving component 400 extends, the driving component 400 is connected to the floating bracket 320, and the pawl 300 acts as an active component, and the ratchet 200 rotates following the rotation of the pawl 300, and the floating claw 310 and the floating bracket 320 rotate synchronously relative to the housing 100.

[0041] In another embodiment, during the switching process of the door lock mechanism between the unlocked state and the locked state, the driving component 400 has a powered state and an unpowered state, and the driving component 400 always remains connected to the floating bracket 320. When the driving component 400 is in the powered state, the driving component 400 can provide rotatable power to the floating bracket 320. When the driving component 400 is in the unpowered state, the driving component 400 stops providing power to the floating bracket 320. Specifically, when the door lock mechanism switches from the unlocked state to the locked state, the driving component 400 is in an unpowered state. Since the ratchet 200 only cooperates with the floating pawl 310, the ratchet 200 acts as an active component and pushes the floating pawl 310 to rotate synchronously when rotating relative to the shell 100. The floating bracket 320 remains stationary, the first abutment portion 321 is separated from the second abutment portion 311, the floating pawl 310 and the floating bracket 320 are switched to a separated state, and only the floating pawl 310 in the pawl 300 rotates alone; when the door lock mechanism switches from the locked state to the unlocked state, the driving component 400 is in a powered state and drives the floating bracket 320 to rotate. The first abutment portion 321 and the second abutment portion 311 are in an abutment state. The floating pawl 310 is pushed by the floating bracket 320 and rotates synchronously with the floating bracket 320. The pawl 300 acts as an active component, and the ratchet 200 rotates following the rotation of the pawl 300.

[0042] Furthermore, in one embodiment, referring to Figure 3 The output shaft 410 of the driving component 400 is provided with a spiral driving edge 411 on its circumference. The floating bracket 320 is located on a radially lateral portion of the driving component 400. The floating bracket 320 has a notch 322, into which the driving edge 411 is inserted. When the door lock mechanism switches from a locked state to an unlocked state, the output shaft 410 rotates, and the driving edge 411 moves the inner wall of the notch 322, causing the floating bracket 320 to rotate about the rotation center. Alternatively, in another embodiment, the output shaft 410 of the driving component 400 is connected to one side of the floating bracket 320. When the door lock mechanism switches from a locked state to an unlocked state, the output shaft 410 moves, pushing the floating bracket 320 to rotate about the rotation center.

[0043] In addition, in one embodiment, one end of the floating bracket 320 is rotatably connected to the shell 100, and the other end is connected to the driving component 400. The floating bracket 320 and the floating claw 310 are both rotatably connected to the shell 100 based on the second rotating shaft 330, which lengthens the distance between the rotation centers of the driving component 400 and the floating bracket 320, facilitates the spatial arrangement of the driving component 400, and makes the driving of the floating bracket 320 by the driving component 400 more flexible.

[0044] It should be noted that when the door lock mechanism is in the locked state, the first abutment portion 321 and the second abutment portion 311 are in the abutment state. In this way, when the door lock mechanism switches from the locked state to the unlocked state, since the first abutment portion 321 and the second abutment portion 311 abut, the floating claw 310 can be pushed by the floating bracket 320 in the initial state when switching to the unlocked state, and rotate synchronously with the floating bracket 320, so that the floating claw 310 has a higher response speed and can eliminate the transmission abnormal noise caused by the matching gap between the first abutment portion 321 and the second abutment portion 311.

[0045] Therefore, during the process of switching the door lock mechanism from the unlocked state to the locked state, the floating claw 310 first moves away from the floating bracket 320, so that the first abutting portion 321 and the second abutting portion 311 are separated, and then the floating claw 310 approaches the floating bracket 320, so that the first abutting portion 321 and the second abutting portion 311 are restored to a mutually abutting state when the door lock mechanism is switched to the locked state; and, in this process, no matter whether the floating claw 310 is in the stage of approaching the floating bracket 320 or in the stage of moving away from the floating bracket 320, the first abutting portion 321 and the second abutting portion 311 are in a mutually separated state, so that the floating claw 310 can rotate alone.

[0046] Specifically, refer to Figure 6 The circumferential side of the ratchet 200 has a first transition portion 240 and a second transition portion 250 connected to each other, and the first transition portion 240 and the second transition portion 250 are alternately arranged along the circumference of the ratchet 200; along the circumference of the ratchet 200, the rotation radius of one of the first transition portion 240 and the second transition portion 250 gradually increases, and the rotation radius of the other gradually decreases; the rotation radius is the distance between different positions on the circumferential side of the first transition portion 240 and the axis center of the ratchet 200, or the distance between different positions on the circumferential side of the second transition portion 250 and the axis center of the ratchet 200.

[0047] When the door lock mechanism switches from the unlocked state to the locked state, the floating claw 310 is always in a state of abutting against the peripheral side of the ratchet 200. The ratchet 200 rotates around the first rotation direction. The floating claw 310 first abuts against the first transition portion 240 and then transitions to abutting against the second transition portion 250. When the floating claw 310 abuts against the first transition portion 240, the floating claw 310 gradually moves away from the floating bracket 320, and the distance between the first abutting portion 321 and the second abutting portion 311 gradually increases. When the floating claw 310 abuts against the position where the first transition portion 240 and the second transition portion 250 are connected, the distance between the first abutting portion 321 and the second abutting portion 311 is the largest. When the floating claw 310 transitions to abutting against the second transition portion 250, the floating claw 310 gradually approaches the floating bracket 320, and the distance between the first abutting portion 321 and the second abutting portion 311 gradually decreases. When the door lock mechanism switches to the locked state, the first abutting portion 321 abuts against the second abutting portion 311.

[0048] When both the first transition portion 240 and the second transition portion 250 are convex, the first abutting portion 321 and the second abutting portion 311 are located on the side of the pawl 300 facing away from the ratchet 200. Along the first rotational direction, the rotation radius of the first transition portion 240 gradually increases, while the rotation radius of the second transition portion 250 gradually decreases. The first transition portion 240 and the second transition portion 250 are arranged sequentially along the first rotational direction. When the door lock mechanism switches from an unlocked state to a locked state, the ratchet 200 rotates in the first rotational direction. The floating pawl 310 first abuts the first transition portion 240 and then transitions to abutting the second transition portion 250. When the floating pawl 310 abuts the first transition portion 240, it rotates away from the ratchet 200 and gradually moves away from the floating bracket 320. When the floating pawl 310 transitions to abutting the second transition portion 250, it rotates toward the ratchet 200 and gradually approaches the floating bracket 320.

[0049] When both the first transition portion 240 and the second transition portion 250 are recessed, the first abutting portion 321 and the second abutting portion 311 are located on the side of the pawl 300 facing the ratchet 200. Along the first rotational direction, the rotation radius of the first transition portion 240 gradually decreases, while the rotation radius of the second transition portion 250 gradually increases. The first transition portion 240 and the second transition portion 250 are arranged sequentially along the first rotational direction. When the door lock mechanism switches from an unlocked state to a locked state, the ratchet 200 rotates in the first rotational direction. The floating pawl 310 first abuts the first transition portion 240 and then transitions to abutting the second transition portion 250. When the floating pawl 310 abuts the first transition portion 240, it rotates toward the ratchet 200 and gradually moves away from the floating bracket 320. When the floating pawl 310 transitions to abutting the second transition portion 250, it rotates away from the ratchet 200 and gradually approaches the floating bracket 320.

[0050] Reference Figure 4 and Figure 5 The door lock mechanism also includes an elastic member 500, which is connected to the floating claw 310 and is used to provide an elastic force to the floating claw 310. The elastic force can cause the second abutting portion 311 to move toward the first abutting portion 321, so that the first abutting portion 321 and the second abutting portion 311 can maintain abutment when the door lock mechanism is in a locked state, an unlocked state, and switches between the locked state and the unlocked state, so as to eliminate the transmission gap between the floating claw 310 and the floating bracket 320 and reduce the abnormal transmission noise inside the pawl 300.

[0051] The elastic member 500 is configured to have elastic force when it is assembled on the floating claw 310 and the shell 100, so that the elastic member 500 has an initial pre-tightening force. When the door lock mechanism is in the locked state and the unlocked state, the elastic member 500 is in a deformed state and has a first deformation amount; when the door lock mechanism switches between the locked state and the unlocked state, the elastic member 500 is pressed by the floating claw 310 and deformed more, and has a second deformation amount, which is greater than the first deformation amount; this makes the elastic member 500 always in a state of providing elastic force to the floating claw 310, effectively eliminating the transmission gap between the floating claw 310 and the floating bracket 320, and improving the synchronization and response speed of the movement of the floating claw 310 and the floating bracket 320.

[0052] In one embodiment, the elastic member 500 is configured as a torsion spring, which is sleeved on the second rotating shaft 330. One end of the torsion spring abuts the housing 100, and the other end abuts the floating claw 310. The abutment between the floating claw 310 and the torsion spring causes the second abutting portion 311 to move toward the first abutting portion 321 due to the elastic force of the torsion spring applied to the floating claw 310. In another embodiment, the elastic member 500 is configured as a compression spring, with one end of the elastic member 500 connected to the floating claw 310 and the other end connected to the housing 100. The elastic member 500 is always in a compressed state, and the second abutting portion 311 has a tendency to move toward the first abutting portion 321 due to the elastic force of the compression spring applied to the floating claw 310.

[0053] For the case where the elastic member 500 is configured as a compression spring, refer to Figure 4 and Figure 5The pawl 300 is located between the ratchet 200 and the elastic member 500, and the first abutting portion 321 is located between the second abutting portion 311 and the ratchet 200. One end of the elastic member 500 facing the ratchet 200 is connected to the floating pawl 310, and the other end is connected to the housing 100. The elastic member 500 is compressed and can provide an elastic force to the floating pawl 310 to move toward the ratchet 200, and an elastic force to move the second abutting portion 311 toward the first abutting portion 321. This allows the floating pawl 310 to maintain an abutment state with the ratchet 200, and the first abutting portion 321 to maintain an abutment state with the second abutting portion 311. This improves the effectiveness and response speed of motion transmission between the ratchet 200 and the pawl 300, and between the floating pawl 310 and the floating bracket 320, and makes the state switching of the door lock mechanism more stable.

[0054] In one embodiment, referring to Figure 2 and Figure 6 The ratchet 200 includes a first frame 260 and a first shell 270 wrapped around the outside of the first frame 260. The floating claw 310 includes a second frame 312 and a second shell 313 wrapped around the outside of the second frame 312. The first frame 260 and the second frame 312 are both made of metal, and the first shell 270 and the second shell 313 are made of plastic. The first shell 270 can be integrally molded on the outside of the first frame 260 by injection molding, or the first frame 260 can be detachably assembled inside the first shell 270. Similarly, the second shell 313 can be integrally molded on the outside of the second frame 312 by injection molding, or the second frame 312 can be detachably assembled inside the second shell 313. By setting up a first frame 260 and a second frame 312 made of metal material, the ratchet 200 and the pawl 300 have higher structural strength and can improve the service life of the ratchet 200 and the pawl 300, and the first shell 270 isolates the first frame 260 and the shell 100, and the second shell 313 isolates the second frame 312 and the shell 100, thereby improving the hard friction between the first frame 260 and the shell 100, and between the second frame 312 and the shell 100; when the door lock mechanism is in the locked state and the unlocked state, the first frame 260 and the second frame 312 abut against each other, so that the door lock mechanism remains stably in the locked state and the unlocked state.

[0055] Furthermore, the floating bracket 320 is made of plastic material to reduce the mass of the floating bracket 320; on the one hand, when the door lock mechanism is in the locked state and the unlocked state, the ratchet 200 does not collide with the floating bracket 320, so only the first skeleton 260 is set in the floating claw 310 to meet the structural strength requirements of the pawl 300; on the other hand, the lightweight design of the floating bracket 320 reduces the total weight of the floating claw 310 and the floating bracket 320. When the door lock mechanism switches from the locked state to the unlocked state, the overall rotational inertia of the pawl 300 is small, which can reduce the impact energy and abnormal noise of the pawl 300 and the ratchet 200 when the door lock mechanism switches to the unlocked state.

[0056] In addition, different parts of the first skeleton 260 are exposed to the outside of the first shell 270, and a plurality of limiting portions are formed on the peripheral side of the ratchet 200. The limiting portions are used to collide or abut with the shell 100 or the floating claw 310 when the door lock mechanism switches to a locked state or an unlocked state, so that the door lock mechanism has a higher state stability.

[0057] Reference Figures 4 to 7 The door lock mechanism further includes a first buffer portion 610 and a second buffer portion 620. Both the first buffer portion 610 and the second buffer portion 620 are mounted on the housing 100 and are used to cushion the impact of the ratchet 200 when the door lock mechanism is switched to the locked state. Specifically, the first buffer portion 610 and the second buffer portion 620 are both made of a flexible material. The multiple limiting portions of the first frame 260 include a first limiting portion 261. When the door lock mechanism is switched to the locked state, the first limiting portion 261 collides and abuts against the first buffer portion 610, and the lock catch 10 collides and abuts against the second buffer portion 620. The first buffer portion 610 cushions the impact of the first limiting portion 261 against the housing 100, while the second buffer portion 620 cushions the impact of the lock catch 10 against the housing 100, thereby reducing vibration and abnormal noise of the door lock mechanism when in the locked state.

[0058] The door lock mechanism also includes a third buffer portion 630, which is mounted on the housing 100 and is used to cushion the impact of the ratchet 200 when the door lock mechanism is switched to the unlocked state. Specifically, the third buffer portion 630 is made of a flexible material. The multiple limiting portions of the first frame 260 include a second limiting portion 262. The first limiting portion 261 and the second limiting portion 262 are arranged at intervals along the circumference of the ratchet 200. When the door lock mechanism is switched to the unlocked state, the second limiting portion 262 collides and abuts the third buffer portion 630. The third buffer portion 630 cushions the impact of the second limiting portion 262 on the housing 100, thereby reducing vibration and abnormal noise of the door lock mechanism when in the unlocked state.

[0059] The door lock mechanism also includes a fourth buffer portion 640, which is installed on the shell 100 and is located between the floating bracket 320 and the shell 100. The fourth buffer portion 640 is made of a flexible material. The fourth buffer portion 640 serves to isolate the shell 100 from the floating bracket 320, and is used to abut against the floating bracket 320 when the door lock mechanism switches from a locked state to an unlocked state, thereby avoiding hard friction between the floating bracket 320 and the shell 100 when rotating, which may cause damage to the floating bracket 320 and the shell 100 and generate abnormal friction noise.

[0060] It is understood that the aforementioned flexible materials are not limited to silicone, rubber, TPE (thermoplastic elastomer), TPU (thermoplastic polyurethane), etc. The multiple limiting portions of the first frame 260 also include a third limiting portion 263 , which is configured to abut against the floating claw 310 when the door lock mechanism is locked. Multiple third limiting portions 263 may be provided, with different third limiting portions 263 configured to abut against the floating claw 310 when the door lock mechanism is in different locked positions.

[0061] In one embodiment, the first buffer portion 610, the second buffer portion 620, the third buffer portion 630, and the fourth buffer portion 640 are integrally connected to form the buffer component 600. This simplifies the installation steps of the multiple buffer portions to the housing 100 and improves the efficiency of assembling the buffer portions and the housing 100. Specifically, the housing 100 is provided with a groove for mounting each buffer portion and the connecting portion between adjacent buffer portions. The first buffer portion 610, the second buffer portion 620, the third buffer portion 630, and the fourth buffer portion 640 are integrally formed into the housing 100 via two-color injection molding. The interference fit between the buffer portions and the housing 100 makes the connection between the multiple buffer portions and the housing 100 more stable and reliable, while also reducing the time required to install the multiple buffer portions to the housing 100.

[0062] Furthermore, different buffers have different hardnesses to achieve differentiated absorption of collision energy at different locations. When the door lock mechanism is locked, the collision intensity between the lock catch 10 and the second buffer 620 is higher, while the collision energy between the first limiter 261 and the first buffer 610 is lower. When the door lock mechanism is unlocked, the collision energy between the second limiter 262 and the third buffer 630 is relatively lower. At locations with higher collision intensity, the limiter exerts a greater impact on these locations, necessitating a design with high structural strength and a long service life. Therefore, in this embodiment, the hardness of the first buffer 610 is H1, the hardness of the second buffer 620 is H2, and the hardness of the third buffer 630 is H3, with H2 > H1 > H3.

[0063] Furthermore, the second buffer portion 620 can be made of TPU, and the first and third buffer portions 610 and 630 can be made of TPE. When assembling the buffer portions to the housing 100 using two-shot injection molding, TPU can be injected in the first stage to form the second buffer portion 620. Then, TPE can be injected in the second stage to form the first and second buffer portions 610 and 620. Finally, silicone can be injected to form the fourth buffer portion 640.

[0064] In conventional technology, the buffer surface of the buffer component 600 is usually set to a flat state. The contact between the lock buckle 10 and the flat surface of the buffer component 600 causes the collision energy to be concentratedly released, resulting in a large instantaneous collision force and causing metal chattering sound. This defect cannot be improved by material modification. Based on this, in one embodiment of the present application, referring to Figure 7 The second buffer portion 620 includes a plurality of spaced-apart buffer protrusions 621, each defining a groove 622. The grooves 622 are concave and are not limited to being strip-shaped or dot-shaped. When the door lock mechanism is locked, the lock catch 10 first contacts the buffer protrusions 621. As the lock catch 10 continues to move, the buffer protrusions 621 are compressed, causing the lock catch 10 to contact the inner wall of the groove 622. During this process, the collision between the lock catch 10 and the second buffer portion 620 occurs in stages, gradually releasing the collision energy. Furthermore, during the deformation process, the sliding friction between the buffer protrusions 621 and the lock catch 10 replaces the rigid collision of the lock catch 10, effectively reducing transient collision noise.

[0065] Furthermore, if the ratchet 200 collides with the planar buffer component 600, the impact energy is released at the moment of contact, generating high-frequency transient noise. The surface contact causes a sudden change in the buffering force, which in turn causes the ratchet 200 to vibrate. Based on this, in one embodiment of the present application, the surface of the first buffer portion 610 facing the ratchet 200 is arc-shaped. The first limiter 261 and the first buffer portion 610 are in surface contact instead of line contact, increasing the contact area gradient. This achieves gradient buffering of the collision, prolongs the release time of the collision energy, and thereby reduces collision noise and vibration of the ratchet 200.

[0066] The locking and unlocking process of the door lock mechanism of the present invention is as follows: Figure 4 When the door lock mechanism is in the unlocked state, the second limiting portion 262 abuts against the third buffer portion 630, the first abutting portion 321 abuts against the second abutting portion 311, the opening of the locking groove 220 communicates with the limiting groove 110, and the lock catch 10 disengages from the limiting groove 110 and the locking groove 220. When the door lock mechanism switches from the unlocked state to the locked state, the lock catch 10 enters the limiting groove 110 and abuts against the first wall 221, and the lock catch 10 pushes the ratchet 200 to rotate in the first direction ( Figure 4The ratchet 200 rotates in the counterclockwise direction, and at the same time, the ratchet 200 pushes the floating claw 310 to rotate, and the floating claw 310 swings away from the ratchet 200 ( Figure 4 When the locking pawl 310 is in the unlocked position, the first stop 261 and the second stop 311 are released, and the first stop 261 is in the unlocked position, and the second stop 261 is released.

[0067] When the door lock mechanism switches from the locked state to the unlocked state, the driving component 400 drives the floating bracket 320 to rotate in the direction away from the ratchet 200 ( Figure 5 The first abutting portion 321 and the second abutting portion 311 maintain an abutting state, the floating bracket 320 pushes the floating claw 310 to rotate synchronously relative to the housing 100, the elastic force of the torsion spring is released, and the ratchet 200 rotates in the second direction ( Figure 5 When the ratchet 200 rotates clockwise (in the middle), the compression amount of the elastic member 500 increases; when the ratchet 200 rotates until the second limiting portion 262 collides and abuts against the third buffer portion 630, the opening of the locking groove 220 is connected to the limiting groove 110, and the lock catch 10 can be withdrawn from the locking groove 220 and the limiting groove 110. The lock between the door lock mechanism and the lock catch 10 is released, and the door lock mechanism switches to the unlocked state.

[0068] The present invention also provides a vehicle, which includes the above-mentioned door lock mechanism, and also includes a vehicle body and a door body, the door lock mechanism is installed on the door body, and the lock buckle 10 is installed on the vehicle body; when the door lock mechanism is in a locked state, the lock buckle 10 is locked with the door lock mechanism, so that the door body is stabilized in a state closed to the vehicle body; when the door lock mechanism is in an unlocked state, the lock between the door lock mechanism and the lock buckle 10 is released, and the door body can be opened relative to the vehicle body.

[0069] It should be noted that the vehicle referred to in this invention may be a private car, such as a sedan, SUV, MPV, or pickup truck. The vehicle may also be a commercial vehicle, such as a van, bus, or truck. The vehicle may be a fuel vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it may be a hybrid vehicle or a pure electric vehicle.

[0070] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications may be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof may be combined with one another unless there is a conflict.

Claims

1. Door lock mechanism, characterized in that, Used to cooperate with the lock on the vehicle to switch between the locked state and the unlocked state, the door lock mechanism includes: case; a ratchet, rotatably connected to the housing; A pawl, comprising a floating bracket and a floating claw, wherein the floating bracket and the floating claw are both rotatably connected to the housing; In which, when the door lock mechanism switches from the unlocked state to the locked state, the ratchet pushes the floating claw to rotate relative to the floating bracket, and the floating bracket is fixed relatively to the shell; when the door lock mechanism switches from the locked state to the unlocked state, the floating claw is pushed by the floating bracket and rotates synchronously with the floating bracket, and the ratchet rotates following the rotation of the floating claw.

2. The door lock mechanism according to claim 1, characterized in that: The floating bracket has a first abutment portion, and the floating claw has a second abutment portion. When the door lock mechanism switches from the unlocked state to the locked state, the first abutment portion and the second abutment portion are separated from each other; when the door lock mechanism switches from the locked state to the unlocked state, the first abutment portion abuts against the second abutment portion.

3. The door lock mechanism according to claim 2, wherein: The first abutting portion is provided to protrude toward the floating claw along the arrangement direction of the floating bracket and the floating claw, and / or the second abutting portion is provided to protrude toward the floating bracket along the arrangement direction of the floating bracket and the floating claw; When the door lock mechanism switches from the locked state to the unlocked state, the first abutting portion abuts against the second abutting portion and pushes the floating claw to rotate.

4. The door lock mechanism according to claim 2, wherein: The door lock mechanism further includes an elastic member connected to the floating claw and configured to provide the floating claw with an elastic force causing the second abutting portion to move toward the first abutting portion.

5. The door lock mechanism according to claim 4, characterized in that: The first abutting portion is located between the second abutting portion and the ratchet, the pawl is located between the ratchet and the elastic member, one end of the elastic member facing the ratchet is connected to the floating pawl, and the other end is connected to the housing.

6. The door lock mechanism according to claim 1, wherein: A first transition portion and a second transition portion are connected to each other on the circumference of the ratchet wheel. Along the circumference of the ratchet wheel, the rotation radius of one of the first transition portion and the second transition portion gradually increases, while the rotation radius of the other gradually decreases. During the process of switching the door lock mechanism from the unlocked state to the locked state, when the floating claw abuts against the first transition part, the floating claw gradually moves away from the floating bracket; when the floating claw abuts against the second transition part, the floating claw gradually approaches the floating bracket; when the door lock mechanism is in the locked state and the unlocked state, the ratchet abuts against the floating claw.

7. The door lock mechanism according to claim 1, wherein: The door lock mechanism further includes a driving component, which is mounted on the housing and connected to the floating bracket, and is used to drive the floating bracket to drive the floating claw to rotate when the door lock mechanism switches from the locked state to the unlocked state; And / or, the shell has a limiting groove for the lock catch to be inserted, and the ratchet has a locking tooth and a locking groove located on one side of the locking tooth; when the door lock mechanism switches from the unlocked state to the locked state, the lock catch is inserted into the limiting groove and the locking groove, and pushes the ratchet to rotate; when the door lock mechanism is in the locked state, the locking tooth can limit each other with the lock catch.

8. The door lock mechanism according to claim 1, wherein: The door lock mechanism further includes a first buffer portion and a second buffer portion mounted on the housing, the first buffer portion and the second buffer portion being made of a flexible material. When the door lock mechanism is in the locked state, the circumference of the ratchet abuts against the first buffer portion, and the second buffer portion is capable of abutting against the lock catch. And / or, the door lock mechanism further comprises a third buffer portion mounted on the housing, the third buffer portion being made of a flexible material, and when the door lock mechanism is in the unlocked state, the circumferential side of the ratchet abuts against the third buffer portion; And / or, the door lock mechanism also includes a fourth buffer portion, which is made of a flexible material. The fourth buffer portion is located between the floating bracket and the shell, and is used to abut against the floating bracket when the door lock mechanism switches from the locked state to the unlocked state.

9. The door lock mechanism according to claim 1, wherein: The door lock mechanism includes a first buffer portion, a second buffer portion, a third buffer portion, and a fourth buffer portion mounted on the housing and made of a flexible material. When the door lock mechanism is in the locked state, the peripheral side of the ratchet abuts against the first buffer portion, and the second buffer portion is capable of abutting against the lock catch; when the door lock mechanism is in the unlocked state, the peripheral side of the ratchet abuts against the third buffer portion; the fourth buffer portion is located between the floating bracket and the housing, and is used to abut against the floating bracket when the door lock mechanism switches from the locked state to the unlocked state; Wherein, the first buffer portion, the second buffer portion, the third buffer portion and the fourth buffer portion are integrally connected; and / or, the first buffer portion is arc-shaped on a side facing the ratchet; And / or, the second buffer portion has a plurality of recessed grooves; And / or, the hardness of the first buffer portion is H1, the hardness of the second buffer portion is H2, and the hardness of the third buffer portion is H3, and H2>H1>H3.

10. A vehicle, characterized in that include: The door lock mechanism according to any one of claims 1 to 9; a vehicle body, on which the lock buckle is installed; a door body, wherein the door lock mechanism is mounted on the door body; When the door lock mechanism is in the locked state, the lock catch is locked with the door lock mechanism; when the door lock mechanism is in the unlocked state, the lock between the door lock mechanism and the lock catch is released.

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