Ice breaking mechanism for automotive door lock

Abstract

The application discloses an ice breaking mechanism for a car door lock, which comprises a shell, a driving assembly, a pawl assembly and a clamping plate, wherein the clamping plate is rotationally connected to the shell through a first rotating shaft; the pawl assembly is rotationally connected to the shell through a second rotating shaft; the pawl assembly is rotationally driven along the axial direction of the second rotating shaft through a release rod; the driving assembly is connected to the shell and can drive the clamping plate to rotate, so as to complete the unlocking of the clamping plate; the driving assembly comprises a driving unit and an ice breaking unit; the ice breaking unit comprises a pull rod and a push rod, and the push rod is movably connected to the pull rod; the driving unit drives the pull rod to move and can drive the push rod to rotate; the push rod drives the clamping plate to rotate along the axial direction of the first rotating shaft, so as to open the clamping plate and complete the unlocking. The mechanism can push the car door to a certain distance, provides assistance for manual door opening or electric door opening, and improves customer satisfaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile door lock, in particular to an ice breaking mechanism for automobile door lock. BACKGROUND

[0002] When the conventional door lock is unlocked to open the door, the ratchet pawl mechanism inside the lock body is unlocked, and the vehicle door is popped open by the compression potential energy of the door sealing strip. When the vehicle door is covered by rain and snow or frozen by residual water, the door cannot be popped open by the sealing strip. In this case, a very large force is required to pull or push the door, and the door may be difficult to open. On the other hand, with the development of automobile intelligence, electrification and shared cars, more and more vehicle models begin to be equipped with electrically opened door locks. As a result, hidden handles may be used, and even the mechanical outer handle may be cancelled. In the above-mentioned harsh low-temperature rain and snow environment, the door is frozen, and the hidden handle may not be able to pop out with a certain probability, which is equivalent to no outer handle, and the passenger will face the situation of no place to exert force and unable to open the door. One solution to solve this problem is to install another top door actuator to push the door open by a certain distance, but this solution increases the system complexity and cost. SUMMARY

[0003] To solve the above technical problems, the present application provides an ice breaking mechanism for automobile door lock, which can push the door open by a certain distance, provide assistance for manual or electric door opening, and solve the problem of frozen door.

[0004] The technical scheme of the present application is: an ice breaking mechanism for automobile door lock, comprising a housing, a driving assembly, a pawl assembly and a clamping plate, the clamping plate is rotatably connected to the housing through a first rotating shaft, the pawl assembly is rotatably connected to the housing through a second rotating shaft, the pawl assembly is rotatable along the axial direction of the second rotating shaft through a release rod, and the driving assembly is connected to the housing and can drive the clamping plate to rotate to complete the unlocking of the clamping plate.

[0005] The driving assembly comprises a driving unit and an ice breaking unit, the ice breaking unit comprises a pull rod and a push rod, the push rod is movably connected to the pull rod, the driving unit drives the pull rod to move and can drive the push rod to rotate, and the push rod drives the clamping plate to rotate along the axial direction of the first rotating shaft to open the clamping plate and complete the unlocking.

[0006] Further, the push rod is rotatably connected to the housing through a third rotating shaft, and the third rotating shaft is connected with a buffer column.

[0007] Further, one end of the pull rod is movably connected to the push rod, the other end of the pull rod is provided with a guide block, the housing is provided with an arc-shaped groove matched with the guide block, and the guide block is slidably connected in the arc-shaped groove.

[0008] Further, the driving unit comprises a driving motor connected to the shell, a main gear shaft and a pushing plate, the pushing plate is rotationally connected to the shell, the driving motor drives the main gear shaft to rotate and drives the pushing plate to rotate, and the pushing plate drives the pull rod to move.

[0009] Further, one end of the pushing plate is provided with a protruding stopper, the protruding stopper is used in cooperation with the pull rod, and the other end of the pushing plate is arrayed with a plurality of connecting rods, the connecting rods are all connected with auxiliary gear wheels, and the auxiliary gear wheels are engaged with the main gear shaft.

[0010] Further, the shell is provided with a first spring, one end of the first spring is connected to the pushing rod, and the other end of the first spring is connected to the side wall of the shell.

[0011] Further, the release rod is rotationally connected to the second rotating shaft, one side of the release rod is provided with a second spring, one end of the second spring is connected to the side wall of the shell, and the other end of the second spring is connected to the release rod.

[0012] Further, the release rod is connected with a pushing block, the shell is provided with a sliding groove matched with the pushing block, and the pushing block is clamped and connected with the pawl assembly through the sliding groove.

[0013] Further, the driving assembly further comprises a self-suction unit, the self-suction unit comprises a linkage block and a push rod, the push rod is movably connected to the linkage block, and the linkage block is rotationally connected to the driving unit; the driving unit drives the linkage block to rotate and drives the push rod to move, the push rod drives the clamping plate to rotate along the axial direction of the first rotating shaft, so that the automatic closing of the clamping plate is completed.

[0014] The beneficial technical effects of the present application are:

[0015] 1. The main gear shaft drives a plurality of auxiliary gear wheels to rotate, and then drives the pushing plate to rotate, and the stability of the pushing plate in the rotating process is ensured by the engagement of the gear parts.

[0016] 2. The pushing plate is connected with a protruding pushing block, the protruding pushing block is moved in the rotating process of the pushing plate, the linkage block is moved by the protruding pushing block, the rotating speed and the rotating direction of the linkage block are the same as those of the pushing plate, when the linkage block rotates, the push rod and the clamping plate are abutted by driving, and then the locking purpose is achieved.

[0017] 3. The release rod can drive the pawl to rotate forward and reverse, and then the clamping plate achieves the locking or unlocking purpose.

[0018] 4. The push block is connected to the card slot of the pawl, so that the release rod and the pawl have the same speed and direction, achieving the purpose of synchronization.

[0019] 5. When the ratchet unlocks the card plate, the pull rod and the push rod can quickly drive the card plate to rotate along the axial direction of the first rotating shaft, thereby unlocking the card plate and opening the car door.

[0020] 6. One end of the pull rod is provided with a hook-shaped feature, which cooperates with the raised stopper of the push plate. The push plate rotates, so that the raised stopper drives the pull rod to move. The pull rod moves in the direction of the arc groove through the guide block. During the movement of the pull rod, it can drive the push rod to rotate, thereby achieving the effect of breaking ice.

[0021] 7. The push rod is connected to a first spring. By utilizing the elasticity of the first spring, the push rod can return to its original position when the external force is lost, thereby facilitating the locking of the card plate.

[0022] 8. The function of the ice-breaking unit is that when the card is unlocked, if the door still cannot be opened, the ice-breaking unit can drive the card to rotate, making it easier for people to open the door with external force.

[0023] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a card plate locked in the present invention;

[0025] Figure 2 A schematic diagram of the ice-breaking process of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the ice breaking unit of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the self-priming unit of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the push plate of the present invention;

[0029] Figure 6 A structural schematic diagram of another perspective of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the main gear shaft of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the drive assembly of the present invention;

[0032] Figure 9 Structure diagram of the pawl of the present application;

[0033] Figure 10 Structure diagram of the shell of the present application;

[0034] Figure 11 Structure diagram of the release lever of the present application.

[0035] Reference signs are:

[0036] 100, shell; 101, transverse groove; 102, arc-shaped groove; 200, clamping plate; 201, first rotating shaft; 202, buffer column; 300, pawl; 301, second rotating shaft; 302, pushing block; 303, release lever; 304, buffer; 305, clamping groove; 306, sliding groove; 307, second spring; 400, driving unit; 401, pushing plate; 402, connecting rod; 403, protruding pushing block; 404, protruding stop block; 405, driving motor; 406, main gear shaft; 407, auxiliary gear; 410, ice breaking unit; 411, linkage block; 412, pushing rod; 413, limiting column; 420, ice breaking unit; 421, pull rod; 422, pushing rod; 423, protruding block; 424, guide block; 425, first spring. DETAILED DESCRIPTION

[0037] In order to enable persons skilled in the art to more clearly understand the technical means of the present application and implement the same according to the contents of the specification, the specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings and examples, and the following examples are used to illustrate the present application but not to limit the scope of the present application.

[0038] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application herein.

[0039] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship described in the examples and shown in the drawings, or the orientation or positional relationship when the product of the present application is normally placed, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0040] As Figure 1 , Figure 2 , Figure 3 andFigure 6 The ice breaking mechanism for the automobile door lock, as shown in the drawings, specifically relates to an ice breaking mechanism for an automobile door lock, which comprises a housing 100, a driving assembly, a pawl assembly and a clamping plate 200, the clamping plate 200 being rotationally connected to the housing 100 through a first rotating shaft 201, the pawl assembly being rotationally connected to the housing 100 through a second rotating shaft 301, the pawl assembly being rotationally driven along the axial direction of the second rotating shaft 301 through a release lever 303, and the driving assembly being connected to the housing 100 and capable of driving the clamping plate 200 to rotate, so as to complete the rotation of the clamping plate 200 in the door opening direction and achieve the unlocking.

[0041] The automobile door lock generally has two main actions, one of which is the opening of the door, and the other is the closing of the door. The closing of the door further includes the half-locking state of the automobile door lock and the full-locking state of the automobile door lock; the opening of the door includes the ice breaking of the automobile door lock, so as to quickly open the door when the door cannot be opened due to other external factors.

[0042] When the door is in the full-locking state, the pawl assembly is in contact with the clamping plate 200, so as to lock the clamping plate 200. When it is necessary to unlock the clamping plate 200, the release lever 303 drives the pawl assembly to rotate along the axial direction of the second rotating shaft 301, so that the pawl assembly is temporarily separated from the clamping plate 200, thereby achieving the purpose of unlocking the clamping plate 200. At this time, the clamping plate 200 is reversely rotated through the cooperation of the driving assembly and the clamping plate 200, thereby opening the door by a certain distance.

[0043] As shown in Figure 1 , Figure 2 and Figure 3 , the driving assembly comprises a driving unit 400 and an ice breaking unit 420, the ice breaking unit 420 comprises a pull rod 421 and a push rod 422, the push rod 422 is movably connected with the pull rod 421, the driving unit 400 drives the pull rod 421 to move and can drive the push rod 422 to rotate, and the push rod 422 drives the clamping plate 200 to rotate along the axial direction of the first rotating shaft 201, so as to open the clamping plate 200 and complete the unlocking.

[0044] It should be noted that the main function of the driving unit 400 is to provide an external power, one end of the push rod 422 is rotationally connected to the housing 100, the other end of the push rod 422 is movably connected to the pull rod 421, the push rod 422 is driven to rotate through the pull rod 421, so that the push rod 422 pushes the clamping plate 200 to rotate along the axial direction of the first rotating shaft 201, thereby opening the door by a certain distance.

[0045] As shown in Figure 1 and Figure 2As shown, the push rod 422 is rotatably connected to the shell 100 through a third rotating shaft (not shown in the figure), and the third rotating shaft is connected with the buffer column 202.

[0046] The buffer column 202 is mainly used for buffering the card plate 200 and limiting the moving stroke of the card plate 200.

[0047] The card plate 200 is always connected with the buffer column 202 in the locked state, and at this time, the card plate 200 is also located above the push rod 422. The end of the push rod 422 away from the pull rod 421 is provided with a protrusion 423, and the protrusion 423 abuts against one side of the card plate 200. When the pull rod 421 drives the push rod 422 to rotate along the axial direction of the third rotating shaft, the protrusion 423 on the push rod 422 extrudes one side of the card plate 200, thereby pushing the card plate 200 to rotate along the axial direction of the first rotating shaft 201, so as to achieve the purpose of opening the door by a certain distance.

[0048] As shown in Figure 2 , Figure 3 and Figure 10 , one end of the pull rod 421 is movably connected with the push rod 422, the other end of the pull rod 421 is provided with a guide block 424, the shell 100 is provided with an arc-shaped groove 102 used in cooperation with the guide block 424, and the guide block 424 is slidably connected in the arc-shaped groove 102.

[0049] The pull rod 421 is slidably connected in the arc-shaped groove 102 through the guide block 424, thereby limiting the moving direction of the pull rod 421. Similarly, the arc-shaped groove 102 is located on one side of the driving unit 400, and the driving unit 400 can drive the pull rod 421 to move along the length direction of the arc-shaped groove 102, so as to realize the pulling of the pull rod 421. When the pull rod 421 is in the pulling state, the push rod 422 movably connected with the pull rod 421 rotates synchronously along the axial direction of the third rotating shaft, and the protrusion 423 connected with the push rod 422 applies an external rotating force to one side of the card plate 200.

[0050] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , the driving unit 400 comprises a driving motor 405 connected with the shell 100, a main gear shaft 406, and a push plate 401 rotatably connected in the shell 100. The driving motor 405 drives the main gear shaft 406 to rotate and drives the push plate 401 to rotate, and the push plate 401 drives the pull rod 421 to move.

[0051] It needs to be explained that, the push plate 401 is rotationally connected in the shell 100, one end of the push plate 401 is connected with the main gear shaft 406, and the other end of the push plate 401 is connected with the linkage block 411; the driving motor 405 drives the main gear shaft 406 to rotate, drives the push plate 401 to rotate through the main gear shaft 406, drives the linkage block 411 to rotate through the push plate 401, and then drives the push rod 412 to extrude the clamping plate 200 to complete the automatic suction process.

[0052] Similarly, the driving motor 405 drives the main gear shaft 406 to rotate reversely, drives the push plate 401 to rotate reversely through the main gear shaft 406, drives the pull rod 421 to move along the length direction of the arc-shaped groove 102 through the push plate 401, when the pull rod 421 is in the moving process, the push rod 422 movably connected with the pull rod 421 rotates synchronously along the axial direction of the third rotating shaft, so that the protruding block 423 connected with the push rod 422 applies a rotating external force to one side of the clamping plate 200 to complete the ice breaking process.

[0053] As can be seen, the power of the linkage block 411 is given by the push plate 401, and the linkage block 411 can be driven to rotate when the push plate 401 rotates. The axial directions of the push plate 401 and the linkage block 411 are the same, and the turning direction and the rotating speed of the linkage block 411 are the same as those of the push plate 401 when the push rod 412 moves.

[0054] Similarly, the power of the pull rod 421 is given by the push plate 401, and the pull rod 421 can be driven to move when the push plate 401 rotates. The moving direction of the pull rod 421 is the length direction of the arc-shaped groove 102, and the guide block 424 is used in cooperation with the arc-shaped groove 102 to ensure the stability and smoothness of the moving process of the pull rod 421.

[0055] The linkage block 411 is rotationally connected to the push plate 401, and the linkage block 411 is located above the push plate 401.

[0056] As shown in Figure 5 , Figure 6 , Figure 7 and Figure 8 , one end of the push plate 401 is provided with a protruding stop block 404, and the protruding stop block 404 is used in cooperation with the pull rod 421; the other end of the push plate 401 is arrayed with a plurality of connecting rods 402, and each of the plurality of connecting rods 402 is connected with a secondary gear 407, and the secondary gear 407 is engaged with the main gear shaft 406; the main gear shaft 406 is located between the plurality of secondary gears 407.

[0057] Similarly, one side of the protruding block 404 is also provided with a protruding push block 403 connected to the push plate 401, and the protruding push block 403 is used in cooperation with the linkage block 411. When the push plate 401 rotates, the linkage block 411 is driven to rotate by the protruding push block 403, thereby providing power to the linkage block 411.

[0058] As shown in Figure 1 and Figure 4 , in the self-suction state, the linkage block 411 is located above the push plate 401, and the protruding push block 403 is located on one side of the linkage block 411, as shown in Figure 6 , Figure 7 and Figure 8 , when the main gear shaft 406 drives the push plate 401 to rotate, as shown in Figure 4 , the linkage block 411 does not move; as shown in Figure 1 and Figure 4 , when the protruding push block 403 on the push plate 401 extrudes one side of the linkage block 411, it drives the linkage block 411 to rotate synchronously, at this time, the push rod 412 movably connected to the linkage block 411 moves synchronously, so that one end of the push rod 412 extrudes one side of the clamping plate 200, thereby completing the self-suction process of the clamping plate 200.

[0059] As shown in Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 , in the ice breaking state, the main gear shaft 406 drives the push plate 401 to rotate reversely, as shown in Figure 2 , Figure 3 and Figure 5 , the protruding block 404 on the push plate 401 is connected with the pull rod 421 and pulls the pull rod 421, as shown in Figure 2 , Figure 3 and Figure 10 , when the pull rod 421 slides along the length direction of the arc-shaped slot 102, the push rod 422 movably connected to the pull rod 421 rotates along the axial direction of the third rotating shaft synchronously, thereby completing the ice breaking process of the clamping plate 200.

[0060] As shown in Figure 2 and Figure 3 , the shell 100 is provided with a first spring 425, one end of the first spring 425 is connected to the push rod 422, and the other end of the first spring 425 is connected to the side wall of the shell 100. By using the elasticity of the first spring 425, when the push rod 422 loses external force, it can return to the original position, which is convenient for locking the clamping plate 200.

[0061] No matter the lock or unlock of the card plate 200, the release lever 303 needs to drive the pawl assembly to move, so that the pawl assembly and the card plate 200 can be matched to complete, and it needs to be emphasized that one side of the pawl assembly is always in close contact with one side of the card plate 200 when the card plate 200 is in the locked or unlocked state.

[0062] As shown in Figure 1 , Figure 2 and Figure 9 , wherein the pawl assembly comprises a pawl 300, one side of the pawl 300 is provided with a buffer 304 connected to the shell 100, and the buffer 304 plays a buffering role in the movement process of the pawl 300, and further limits the movement stroke of the pawl 300. In addition, the pawl 300 is rotatably connected to the shell 100 through a second rotating shaft 301.

[0063] As shown in Figure 1 , Figure 8 and Figure 11 , the release lever 303 is rotatably connected to the second rotating shaft 301, and one side of the release lever 303 is provided with a second spring 307, one end of the second spring 307 is connected to the side wall of the shell 100, and the other end of the second spring 307 is connected to the release lever 303.

[0064] It needs to be explained that the shell 100 is located between the pawl 300 and the release lever 303, the pawl 300 and the release lever 303 share the second rotating shaft 301, the release lever 303 is connected with the second spring 307, and the elasticity of the second spring 307 is used to drive the release lever 303 to rotate along the axial direction of the first rotating shaft 201, thereby driving the pawl 300 to rotate, so as to realize the locking of the card plate 200.

[0065] Similarly, the pawl 300 and the release lever 303 are in the same speed and same direction movement, so the elasticity of the second spring 307 can also directly act on the pawl 300.

[0066] The release lever 303 is connected with a push block 302, the shell 100 is provided with a sliding groove 306 used in cooperation with the push block 302, and the push block 302 passes through the sliding groove 306 and is connected with the pawl assembly.

[0067] It needs to be explained that the pawl assembly comprises a pawl 300, and the push block 302 is used to be connected with the pawl 300, so that the pawl 300 and the release lever 303 can move at the same speed and in the same direction.

[0068] The pawl 300 is provided with a clamping groove 305, and the pawl 300 is connected with the push block 302 through the clamping groove 305.

[0069] The pushing block 302 is clamped and connected with the clamping groove 305 of the pawl 300 through the sliding groove 306. When the release lever 303 rotates, the pushing block 302 moves in the sliding groove 306 and drives the pawl 300 to rotate synchronously. The release lever 303 drives the pawl 300 to rotate forward or reversely, thereby being capable of locking or unlocking the clamping plate 200.

[0070] The clamping groove 305 and the pushing block 302 are clamped and connected, thereby realizing the synchronous rotation effect of the pawl 300 and the release lever 303.

[0071] As shown in Figure 1 and Figure 4 , the driving assembly further comprises a self-suction unit 410, the self-suction unit 410 comprises a linkage block 411 and a push rod 412, the push rod 412 is movably connected to the linkage block 411, and the linkage block 411 is rotationally connected to the driving unit 400; the driving unit 400 drives the linkage block 411 to rotate and drives the push rod 412 to move, and the push rod 412 drives the clamping plate 200 to rotate along the axial direction of the first rotating shaft 201, so as to automatically close the clamping plate 200.

[0072] The above embodiment has explained a self-suction process and a movement process of the linkage block 411 and the push rod 412 in detail, and the processes will not be described herein.

[0073] The clamping plate 200 is in a half-locked state due to the action of an external force and is converted from the half-locked state to a full-locked state.

[0074] It should be noted that the automobile door is normally in two states when being closed, one is a half-locked state, and the other is a full-locked state. The half-locked state usually exists a gap when the automobile door is closed, and the automobile door in the half-locked state cannot be opened under the action of an external force. The full-locked state usually means that the automobile door is completely closed.

[0075] When the automobile door is switched from the half-locked state to the full-locked state, the linkage block 411 drives the push rod 412 to move and drives the clamping plate 200 to rotate along the axial direction of the first rotating shaft 201 through the push rod 412, so that the clamping plate 200 is clamped and connected with the buffer column 202 connected to the shell 100.

[0076] The push rod 412 is connected with a limiting column 413, the shell 100 is provided with a horizontal groove 101, the limiting column 413 penetrates into the horizontal groove 101, and the horizontal groove 101 is located on one side of the clamping plate 200.

[0077] The push rod 412 is movably connected with the linkage block 411, and is used in cooperation with the limiting column 413 through the horizontal slot 101, thereby limiting the moving stroke of the push rod 412, so that the push rod 412 can push the clamping plate 200 to rotate along the axial direction of the first rotating shaft 201.

[0078] In addition, first, the clamping plate 200 enters the half-locked state due to an external force, and when the clamping plate 200 enters the half-locked state, the linkage block 411 drives the push rod 412 to apply an external force to the clamping plate 200, so that the clamping plate 200 continues to rotate, thereby realizing full locking.

[0079] In summary, when the push plate 401 rotates forward, the self-suction unit 410 can be driven to lock the automobile door, and when the push plate 401 reverses, the ice-breaking unit 420 can be driven to push the automobile door away by a certain distance, thereby opening the automobile door.

[0080] The above embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the present application. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any person skilled in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or replace some technical features with equivalent ones within the technical range disclosed by the present application. The modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application.

Claims

1. An ice-breaking mechanism for a car door lock, characterized in that: The invention comprises a housing (100), a driving assembly, a pawl assembly and a card plate (200), wherein the card plate (200) is rotatably connected to the housing (100) via a first rotating shaft (201); the pawl assembly is rotatably connected to the housing (100) via a second rotating shaft (301); the pawl assembly rotates axially around the second rotating shaft (301) via a release lever (303), and the driving assembly is connected to the housing (100) and can drive the card plate (200) to rotate, thereby completing the unlocking of the card plate (200); The driving assembly includes a driving unit (400) and an ice-breaking unit (420), the ice-breaking unit (420) includes a pull rod (421) and a push rod (422), the driving unit (400) drives the pull rod (421) to move, and can drive the push rod (422) to rotate, and the push rod (422) drives the card plate (200) to rotate axially around the first rotating shaft (201) to open the card plate (200) and complete unlocking; The push rod (422) is rotatably connected to the housing (100) via a third rotating shaft, and the third rotating shaft is connected to a buffer column (202); One end of the pull rod (421) is movably connected to the push rod (422), and the other end of the pull rod (421) is provided with a guide block (424). The shell (100) is provided with an arc groove (102) used in conjunction with the guide block (424), and the guide block (424) is slidably connected in the arc groove (102).

2. The ice-breaking mechanism for automobile door locks according to claim 1, characterized in that: The driving unit (400) includes a driving motor (405) connected to the housing (100), a main gear shaft (406) and a push plate (401), wherein the push plate (401) is rotatably connected to the housing (100), the driving motor (405) drives the main gear shaft (406) to rotate, and drives the push plate (401) to rotate, and the push plate (401) drives the pull rod (421) to move.

3. The ice-breaking mechanism for automobile door lock according to claim 2, characterized in that: One end of the push plate (401) is provided with a raised stopper (404), and the raised stopper (404) and the pull rod (421) are used in conjunction with each other; the other end of the push plate (401) is provided with a plurality of connecting rods (402) in an array, and the plurality of connecting rods (402) are all connected to a sub-gear (407), and the sub-gear (407) is engaged with the main gear shaft (406).

4. The ice-breaking mechanism for automobile door lock according to claim 1, characterized in that: The housing (100) is provided with a first spring (425), one end of the first spring (425) is connected to the push rod (422), and the other end of the first spring (425) is connected to the side wall of the housing (100).

5. The ice-breaking mechanism for automobile door lock according to claim 1, characterized in that: The release lever (303) is rotatably connected to the second rotating shaft (301), and a second spring (307) is provided on one side of the release lever (303), one end of the second spring (307) is connected to the side wall of the shell (100), and the other end of the second spring (307) is connected to the release lever (303).

6. The ice-breaking mechanism for automobile door lock according to claim 5, characterized in that: The release rod (303) is connected to a push block (302), and the housing (100) is provided with a sliding groove (306) used to cooperate with the push block (302). The push block (302) passes through the sliding groove (306) and is connected to the pawl assembly by snapping.

7. The ice-breaking mechanism for automobile door lock according to claim 1, characterized in that: The driving assembly further comprises a self-priming unit (410), the self-priming unit (410) comprising a linkage block (411) and a push rod (412), the push rod (412) being movably connected to the linkage block (411), and the linkage block (411) being rotationally connected to the driving unit (400); the driving unit (400) drives the linkage block (411) to rotate in the opposite direction and drives the push rod (412) to move, and the push rod (412) drives the card plate (200) to rotate axially around the first rotating shaft (201) to complete the locking of the card plate (200).

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