Locking mechanisms, door locking devices, and vehicles

Abstract

A door lock device and a vehicle are provided. Each of the door lock devices and the vehicle includes a locking mechanism. The locking mechanism includes a cam, a locking arm, and a first gear. The cam is rotatably connected to a first rotating shaft. The locking arm is rotatably connected to a second rotating shaft and connected to the cam. The first gear is rotatably connected to the first rotating shaft and connected to the cam. The locking mechanism has a locked state and an unlocked state. In the locked state, the locking arm is connected to the first gear such that the first gear is fixed relative to the first rotating shaft. In the process of switching from the locked state to the unlocked state, the cam rotates around the first rotating shaft to rotate the locking arm around the second rotating shaft, the locking arm is disengaged from the first gear, and the cam rotates the first gear relative to the first rotating shaft.

Description

Technical Field

[0001] The present application claims the priority of Chinese Patent Application No. 202310089936.5 filed with the National Intellectual Property Administration on January 17, 2023 and titled "LOCKING MECHANISM, DOOR LOCK APPARATUS, AND VEHICLE", which is incorporated herein by reference in its entirety.

[0002] The present application relates to the technical field of vehicle parts, and in particular, to a locking mechanism, a door lock apparatus, and a vehicle.

Background Art

[0003] To realize the unlocking function and locking function, most existing vehicle door locks have a complicated structure, a large number of parts, and require motor driving, as a result, the vehicle door lock is bulky and costly.

Summary of Invention

[0004] The purpose of the present application is to provide a locking mechanism, a door lock apparatus, and a vehicle, wherein the locking mechanism has a simple structure and does not require motor driving, thereby meeting the design requirements of miniaturization and low cost.

[0005] To achieve the purpose of the present application, the present application provides the following technical solutions.

[0006] According to a first aspect, the present application provides a locking mechanism comprising a cam, a locking arm, and a first gear. The cam is rotatably connected to a first rotating shaft. The locking arm is rotatably connected to a second rotating shaft and connected to the cam. The first gear is rotatably connected to the first rotating shaft and connected to the cam. The status of the locking mechanism includes a locked state and an unlocked state. In the locked state, the locking arm is connected to the first gear, and the first gear is fixed relative to the first rotating shaft. In the process of switching from the locked state to the unlocked state, the cam is configured to rotate around the first rotating shaft to rotate the locking arm around the second rotating shaft, the locking arm is separated from the first gear, and the cam is configured to rotate the first gear relative to the first rotating shaft.

[0007] In one embodiment, the locking mechanism further includes a housing. The housing includes a detachably connected upper housing and a lower housing. A first rotating shaft and a second rotating shaft are connected to the lower housing.

[0008] In one embodiment, the first rotating shaft, the second rotating shaft, and the lower housing are integrated into a single structure.

[0009] In one embodiment, the cam is provided with a first groove. The lock arm includes a first projection. The first groove extends in an arc on the cam around a first rotating shaft. The first projection passes through and moves within the first groove.

[0010] In one embodiment, the multiple first grooves on the first rotating shaft have the same radius. The groove width of the first grooves remains constant.

[0011] In one embodiment, the multiple first grooves on the first rotating shaft 21 have different radii. The groove width of the first grooves remains constant.

[0012] In one embodiment, the lock arm includes a rotating portion and a main portion connected to each other. The rotating portion is connected to a second rotating shaft and configured to rotate. The main portion extends outward from the rotating portion and is connected to a first gear. The main portion is positioned between the cam and the first gear. A first projection is connected to the main portion and is positioned on the side of the main portion facing the cam.

[0013] In one embodiment, the locking arm includes a hook. The first gear includes a retaining table. The hook is located at the end of the locking arm furthest from the second rotating shaft. The retaining table protrudes from one side of the first gear toward the cam. In the locked state, the hook is connected to the retaining table, restricting the rotation of the first gear around the first rotating shaft. In the unlocked state, the hook is separated from the retaining table.

[0014] In one embodiment, the locking mechanism further includes a connecting arm. The connecting arm is mounted on a first rotating shaft and positioned between a cam and a first gear. In the process of switching from a locked state to an unlocked state, the cam is configured to rotate the connecting arm, which in turn rotates the first gear.

[0015] In one embodiment, the locking mechanism further includes a torsion spring. The torsion spring is positioned between a connecting arm and a first gear. The connecting arm is configured to rotate the first gear via the torsion spring.

[0016] In one embodiment, the cam includes a second projection. The connecting arm is provided with a second groove. The second projection passes through the second groove and moves within the second groove.

[0017] In one embodiment, the radius from the second groove to the first rotating shaft is the same, and the groove width of the second groove remains unchanged.

[0018] In one embodiment, the locking mechanism further includes a oscillating arm, which is mounted on a third rotating shaft. The oscillating arm is connected to a cam. In the process of switching from a locked state to an unlocked state, the oscillating arm is configured to rotate around the third rotating shaft to rotate the cam.

[0019] In one embodiment, the locking mechanism further includes a bottom housing. The bottom housing is detachably connected to the lower housing. A third rotating shaft is connected to the bottom housing.

[0020] In one embodiment, the third rotating shaft and the bottom housing are integrated into a single structure.

[0021] In one embodiment, the rocking arm includes a first cooperating part. The cam includes a second cooperating part. The first cooperating part is connected to the second cooperating part. In the process of switching from a locked state to an unlocked state, the rocking arm is configured to rotate the cam.

[0022] In one embodiment, the locking mechanism further includes a tension wire and a slider connected to each other. The slider is connected to a rocking arm. The tension wire is connected to an external drive mechanism. In the process of switching from a locked state to an unlocked state, the tension wire is configured to extend or retract in order to move the slider, and the slider is configured to rotate the rocking arm.

[0023] In one embodiment, the locking mechanism further includes a second gear. The second gear is mounted on a fourth rotating shaft and connected to the first gear. The second gear is further connected to an external driven mechanism. In the process of switching from a locked state to an unlocked state, the first gear is configured to rotate the second gear in order to unlock the external driven mechanism.

[0024] In one embodiment, the locking mechanism further comprises a second circlip. The second circlip is sleeved between the fourth rotating shaft and the upper housing, and is configured to fix the fourth rotating shaft and the second gear.

[0025] According to a second aspect, the present application further provides a door lock device comprising the locking mechanism according to any one of the embodiments of the first aspect.

[0026] According to a third aspect, the present application further provides a vehicle comprising a vehicle door and the locking mechanism according to any one of the embodiments of the first aspect. The locking mechanism is mounted in the vehicle door.

[0027] In the present application, the lock arm is arranged to be connected to the first gear, and is engaged with the first gear to achieve the locked state of the locking mechanism. Then the cam rotates to first rotate the lock arm to separate it from the first gear, so that the first gear can have a tendency to rotate. Then the cam continues to rotate to correspondingly rotate the first gear, thereby achieving the unlocked state. The locking mechanism has a simple structure, and the manufacturing and assembly efficiency can be improved. Furthermore, fewer components cooperate to lower the space occupancy of the locking mechanism, thereby meeting the design requirement of miniaturization. Furthermore, the above-mentioned unlocking process is simple and does not require a motor, thereby greatly reducing the cost of motor drive.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can obtain other drawings based on these drawings without creative efforts. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] [Figure 1]It is an exploded view of the locking mechanism according to one embodiment. [Figure 2] It is an exploded structural view of the locking mechanism according to one embodiment. [Figure 3] It is a diagram showing the positional relationship among the cam, the lock arm and the first gear in a locked state according to one embodiment. [Figure 4] It is a diagram showing the positional relationship among the connecting arm, the lock arm and the first gear in a locked state according to an embodiment. [Figure 5] It is a diagram showing the positional relationship among the cam, the lock arm and the first gear in an unlocked state according to one embodiment. [Figure 6] It is a diagram showing the positional relationship among the connecting arm, the lock arm and the first gear in an unlocked state according to one embodiment. [Figure 7] It is a diagram of the door lock device according to one embodiment. [Figure 8] It is a diagram of a vehicle according to one embodiment. DETAILED DESCRIPTION OF EMBODIMENTS

[0030] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application. It is obvious that the described embodiments are only some rather than all embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] It should be noted that when an assembly is described as "fixed" to another assembly, the assembly may be directly disposed on the other assembly, or there may be an intermediate assembly. When an assembly is considered to be "connected" to another assembly, the assembly may be directly connected to the other assembly, or there may be an intermediate assembly.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as they would be generally understood by those skilled in the art to which this application belongs. Terms used herein are intended not to limit this application, but merely to describe specific embodiments. The terms “and / or” used herein include any combination of one or more of the relevant listed items.

[0033] The following describes in detail several embodiments of this application with reference to the attached drawings. Unless otherwise specified, the following embodiments and features within them can be combined with each other.

[0034] A locking mechanism provided in one embodiment of this application may be used in a vehicle, which may be a fuel vehicle or a new energy electric vehicle. The vehicle may have a concealed door handle, and preferably the locking mechanism helps the vehicle to have the function of extending the door handle for unlocking and closing the door handle for locking.

[0035] In one embodiment, referring to Figures 1 and 2, the locking mechanism 100 includes a cam 11, a locking arm 12, and a first gear 13. The cam 11 is rotatably connected to a first rotating shaft 21. The locking arm 12 is rotatably connected to a second rotating shaft 22 and connected to the cam 11. The first gear 13 is rotatably connected to the first rotating shaft 21 and connected to the cam 11. The status of the locking mechanism 100 includes a locked state and an unlocked state. In the locked state, the locking arm 12 is connected to the first gear 13 so that the first gear 13 is fixed against the first rotating shaft 21. In the process of switching from the locked state to the unlocked state, the cam 11 rotates around the first rotating shaft 21, causing the lock arm 12 to rotate around the second rotating shaft 22, the lock arm 12 to separate from the first gear 13, and the cam 11 rotates the first gear 13 relative to the first rotating shaft 21.

[0036] Specifically, the locking mechanism 100 may be mounted on the vehicle body or vehicle door. The locking mechanism 100 is configured to cooperate with a drive mechanism, as well as a driven mechanism to be locked and unlocked. Referring to Figure 1, the locking mechanism 100 includes a housing 20. The housing 20 includes an upper housing 201 and a lower housing 202 that are detachably connected. The upper housing 201 and the lower housing 202 are connected to surround a first housing cavity. The aforementioned cam 11, locking arm 12, and first gear 13 are all housed in the first housing cavity. A first rotating shaft 21 and a second rotating shaft 22 are connected to the lower housing 202, and the axial directions of the first rotating shaft 21 and the second rotating shaft 22 are parallel.

[0037] In one embodiment, the first rotating shaft 21, the second rotating shaft 22, and the lower housing 202 are integrally constructed. It can be understood that the lower housing 202 may be an injection-molded structure. Thus, the first rotating shaft 21 and the second rotating shaft 22 may be cylindrical structures protruding from the lower housing 202. The upper housing 201 includes a first connecting surface, and the lower housing 202 includes a second connecting surface. When the upper housing 201 is connected to the lower housing 202, the first and second connecting surfaces face each other. The axial directions of the first rotating shaft 21 and the second rotating shaft 22 are perpendicular to the second connecting surface. The first connecting surface is provided with axial holes that cooperate with the first and second rotating shafts 21 and 22. The first and second rotating shafts 21 and 22 are each inserted into their corresponding axial holes to fix the rotating shafts in place.

[0038] In one embodiment, the locking mechanism 100 further includes a screw 25. Each of the upper housing 201 and the lower housing 202 is provided with a screw hole. The screw 25 passes through threads on the first and second connecting surfaces to fasten the upper housing 201 and the lower housing 202. Thus, the insertion direction of the screw 25 may be the same as the axial direction of the first and second rotating shafts 21 and 22. Naturally, other fastening configurations are possible in other embodiments, and these are not limited herein.

[0039] In one embodiment, the first gear 13 may be positioned behind the cam 11 in the direction from the first connecting surface to the second connecting surface. The cam 11 may be directly or indirectly connected to the drive mechanism described above, which may be an exterior door handle of a vehicle. The first gear 13 may be directly or indirectly connected to the driven mechanism described above, which may be a vehicle door or a door locking device on the vehicle body.

[0040] In one embodiment, the status of the locking mechanism 100 includes a locked state and an unlocked state. In the locked state, the cam 11 is not driven by the drive mechanism and remains stationary relative to the first rotating shaft 21. Furthermore, the lock arm 12 is not driven by the cam 11 and remains stationary. The lock arm 12 is connected to and engages with the first gear 13 so that the first gear cannot rotate freely. Thus, the first gear 13 cannot drive the driven mechanism and the vehicle door remains locked. Optionally, the lock arm 12 is engaged relative to the gear ring of the first gear 13 so that the first gear 13 cannot rotate. Naturally, in other embodiments, the lock arm 12 may instead engage with the first gear 13 in a different position.

[0041] During the transition from the locked state to the unlocked state, the cam 11 is driven by the drive mechanism and can rotate clockwise or counterclockwise around the first rotating shaft 21. Furthermore, the cam can rotate the lock arm 12 clockwise or counterclockwise around the second rotating shaft 22. The lock arm 12 rotates so as to be separated from the first gear 13. The first gear 13 is not engaged and can rotate correspondingly clockwise or counterclockwise around the first rotating shaft 21 under the drive of the cam 11. Finally, the driven mechanism can also unlock the door under the drive of the first gear 13.

[0042] Naturally, when the unlocked state is switched to the locked state, the cam 11 is driven by the drive mechanism and can rotate counterclockwise or clockwise around the first rotating shaft 21. Furthermore, the cam resets the first gear 13 by rotating it counterclockwise or clockwise around the first rotating shaft 21. The cam 11 then resets the lock arm 12 by rotating it counterclockwise or clockwise around the second rotating shaft 22 until the first gear 13 is engaged, thereby completing the lock.

[0043] In one embodiment, the cam 11 rotates around the first rotating shaft 21, passing through a first position, a second position, and a third position. When the cam 11 is in the first position, the locking mechanism 100 is in a locked state. As the cam 11 rotates around the first rotating shaft 21 from the first position to the second position in a certain direction, the cam 11 separates the lock arm 12 from the first gear 13. When the cam 11 is in the second position, the lock arm 12 is separated from the first gear 13, and the first gear 13 does not rotate. Then, as the cam 11 continues to rotate around the first rotating shaft 21 from the second position to the third position in the aforementioned direction, the cam 11 rotates the first gear 13. When the cam 11 is in the third position, the first gear 13 rotates to the final unlocked position.

[0044] In this application, the lock arm 12 is positioned and configured to connect to the first gear 13 and engage with the first gear 13 to achieve the locked state of the lock mechanism 100. The cam 11 then rotates to first rotate the lock arm 12 and separate it from the first gear 13, so that the first gear 13 may have a tendency to rotate. The cam 11 then continues to rotate to rotate the first gear 13 accordingly, thereby achieving the unlocked state. The lock mechanism 100 has a simple structure, and manufacturing and assembly efficiency can be improved. Furthermore, fewer parts work together to reduce the space occupancy of the lock mechanism 100, thereby meeting the design requirements for miniaturization. Moreover, the unlocking process described above is simple and does not require a motor, thereby significantly reducing the cost of motor drives.

[0045] In one embodiment, referring to Figures 3 and 5, the cam 11 is provided with a first groove 111. The lock arm 12 includes a first projection 121. The first groove 111 extends in an arc on the cam 11 around the first rotating shaft 21. The first projection 121 passes through the first groove 111 and moves within the first groove 111. Specifically, the first groove 111 is provided on the side of the cam 11 facing the first gear 13, and the first groove 111 may penetrate the cam 11 or may be recessed inward from the surface of the cam 11. The lock arm 12 includes a rotating portion 12A and a main portion 12B connected to each other. The rotating portion 12A is connected to and rotates on the second rotating shaft 22. The main portion 12B extends outward from one side of the rotating portion 12A until the main portion is connected to the first gear 13. The main portion 12B is positioned between the cam 11 and the first gear 13. The first projection 121 is connected to the main portion 12B and is positioned on the side of the main portion 12B facing the cam 11.

[0046] In one embodiment, the first groove 111 extends in an arc on the cam 11 around the first rotating shaft 21, and multiple first grooves 111 relative to the first rotating shaft 21 have the same radius. The groove width of the first groove 111 remains constant. For example, the two opposing sides of the first groove 111 are the inner side wall 111A and the outer side wall 111B. The inner side wall 111A is closer to the first rotating shaft 21 than the outer side wall 111B. Furthermore, the distance from all points on the inner side wall 111A to the first rotating shaft 21 is the same, and the distance from all points on the outer side wall 111B to the first rotating shaft 21 is also the same. When the cam 11 is positioned in the first position as shown in the figure, the first projection 121 is located on the far right of the first groove 111. Next, as the cam 11 rotates from the first position to the second position, the cam 11 rotates clockwise around the first rotating shaft 21. The first projection 121 moves to the leftmost position of the first groove 111 under pressure from the inner side wall 111A, and as a result, the lock arm 12 rotates counterclockwise around the second rotating shaft 22, thereby separating the lock arm 12 from the first gear 13.

[0047] In other embodiments, the multiple first grooves 111 relative to the first rotating shaft 21 have different radii. The groove width of the first groove 111 remains constant. For example, the two opposing sides of the first groove 111 are the inner side wall 111A and the outer side wall 111B. The inner side wall 111A is closer to the first rotating shaft 21 than the outer side wall 111B. As shown in the figure, the distance from the inner side wall 111A to the first rotating shaft 21 increases along the counterclockwise direction, and the distance from the outer side wall 111B to the first rotating shaft 21 also increases along the counterclockwise direction. It can be understood that the leftmost part of the first groove 111 is further from the first rotating shaft 21 than the rightmost part of the first groove 111. The manner in which the first projection 121 moves within the first groove 111 can be seen by referring to the embodiments described above. In this embodiment, it can be understood that the cam 11 rotates to push the main portion 12B away from the cam 11 in order to allow the cam 11 to push the lock arm 12 which is to be separated from the first gear 13. The centrifugal radius of the first groove 111 is increased in order to obtain the effect of pushing the lock arm 12 using the first projection 121.

[0048] In one embodiment, referring to Figures 4 and 6, the locking arm 12 includes a hook 122. The first gear 13 includes a retaining table 131. The hook 122 is located at the end of the locking arm 12 furthest from the second rotating shaft 22. The retaining table 131 protrudes from the side of the first gear 13 facing the cam 11. In the locked state, the hook 122 is connected to the retaining table 131, restricting the rotation of the first gear 13 around the first rotating shaft 21. In the unlocked state, the hook 122 is separated from the retaining table 131.

[0049] Specifically, the main part 12B includes a hook 122 and a lever 123. The two ends of the lever 123 are connected to the rotating part 12A and the hook 122, respectively. The hook 122 is connected to the lever 123 at a certain angle. The first gear 13 includes a gear body 132 and a retaining table 131. The gear body 132 is a wheel rim including a gear ring. The retaining table 131 is a structure that protrudes from the side of the gear body 132 facing the cam 11. Thus, the retaining table 131 is positioned between the cam 11 and the gear body 132. The retaining table 131 protrudes in a rotational manner from the gear body 132 toward the cam 11. For example, the retaining table 131 extends from the start to the end in an annular shape such that the start and end points are connected end to end, and the end point protrudes more from the surface of the gear body 132 than the start point. Therefore, the hook 122 can be connected to the endpoint of the holding table 131 in the locked state. The process by which the hook 122 is separated from the holding table 131 can be described by referring to the embodiments described above.

[0050] In one embodiment, referring to Figures 4 and 6, the locking mechanism 100 further includes a connecting arm 14. The connecting arm 14 is mounted on a first rotating shaft 21 and positioned between a cam 11 and a first gear 13. In the process of switching from a locked state to an unlocked state, the cam 11 rotates the connecting arm 14, and the connecting arm 14 rotates the first gear 13.

[0051] Specifically, the connecting arm 14 may be positioned between the holding table 131 and the cam 11 in the embodiment described above, and the connecting arm 14 may engage with the cam 11 and the first gear 13 separately. When the cam 11 rotates from a first position to a second position around the first rotating shaft 21 in a certain direction, the connecting arm 14 may be kept stationary with respect to the first rotating shaft 21. As the cam 11 continues to rotate from a second position to a third position around the first rotating shaft 21 in the aforementioned direction, the connecting arm 14 may be driven by the cam 11 to rotate in the same direction and rotate the first gear 13.

[0052] In one embodiment, referring to Figure 2, the locking mechanism 100 further includes a torsion spring 191. The torsion spring 191 is positioned between a connecting arm 14 and a first gear 13. The connecting arm 14 rotates the first gear 13 via the torsion spring 191. For example, the connecting arm 14 includes an annular first engaging portion (not shown in the figure), which surrounds a first rotating shaft 21. The first gear 13 includes an annular second engaging portion (not shown in the figure), which surrounds the first rotating shaft 21. The two opposing ends of the torsion spring 191 extend to the first and second engaging portions, respectively. As the connecting arm 14 rotates, the torsion spring 191 is simultaneously compressed in a direction near the first gear 13 so that the first gear 13 can be rotated. When switching to the locked state, the first gear 13 rotates in the opposite direction to compress the torsion spring 191 in the direction facing the connecting arm 14, and as a result the connecting arm 14 is reset.

[0053] In one embodiment, referring to Figures 4 and 6, the cam 11 includes a second projection 112. The connecting arm 14 is provided with a second groove 141. The second projection 112 penetrates the second groove 141 and moves within the second groove 141. Specifically, the second groove 141 is provided on the side of the connecting arm 14 facing the cam 11, and the second groove 141 may penetrate the connecting wall or may be recessed inward from the surface of the connecting arm 14. The second projection 112 is positioned alongside the first groove 111.

[0054] In one embodiment, the second groove 141 can extend in an arc around the first rotating shaft 21 on the connecting arm 14, and the radius from the second groove 141 to the first rotating shaft 21 is the same. The groove width of the second groove 141 remains unchanged. Naturally, the second groove may instead extend in a straight line, and this is not particularly limited. The specific movement relationship of the second projection 112 within the second groove 141 is such that when the cam 11 is positioned in the first position, the second projection 112 is positioned at the leftmost end of the second groove 141. Then, as the cam 11 rotates from the first position to the second position, the cam 11 rotates clockwise around the first rotating shaft 21. The second projection 112 moves to the far right of the second groove 141, which can be understood as simply the cam 11 rotating, causing the second projection 112 to move within the second groove 141 and not drive the lock arm 12. As the cam 11 rotates from the second to the third position, the cam 11 continues to rotate clockwise around the first rotating shaft 21. Since the second projection 112 is already positioned to the far right of the second groove 141, the second projection 112 can push the connecting arm 14 and rotate it clockwise as well.

[0055] In one embodiment, referring to Figure 2, the locking mechanism 100 further includes a oscillating arm 15. The oscillating arm 15 is mounted on a third rotating shaft 23. The oscillating arm 15 is connected to a cam 11. In the process of switching from a locked state to an unlocked state, the oscillating arm 15 rotates around the third rotating shaft 23 to rotate the cam 11. Specifically, the oscillating arm 15 is connected to the cam 11, and the oscillating arm 15 rotates clockwise or counterclockwise around the third rotating shaft 23 to rotate the cam 11 clockwise or counterclockwise. Furthermore, the oscillating arm 15 may be directly or indirectly connected to a drive mechanism for rotation.

[0056] In one embodiment, referring to Figure 2, the locking mechanism 100 further includes a bottom housing 203. The bottom housing 203 is detachably connected to a lower housing 202, and the bottom housing 203 and lower housing 202 surround a second housing cavity. The aforementioned swing arm 15 is housed in the second housing cavity. A third rotating shaft 23 is connected to the bottom housing 203, and the axial direction of the third rotating shaft 23 is perpendicular to the axial direction of the first rotating shaft 21.

[0057] In one possible embodiment, the locking mechanism 100 further includes a first circlip 192. The first circlip 192 is sleeved between the third rotating shaft 23 and the lower housing 202 and is configured to secure the third rotating shaft 23 and the swing arm 15.

[0058] In one embodiment, the third rotating shaft 23 and the bottom housing 203 are integrally constructed. It may be understood that the housing may be an injection-molded structure. Thus, the third rotating shaft 23 may be a cylindrical structure protruding from the bottom housing 203. The lower housing 202 includes a third connecting surface, and the bottom housing 203 includes a fourth connecting surface. When the bottom housing 203 is connected to the lower housing 202, the third and fourth connecting surfaces face each other. The axial direction of the third rotating shaft 23 is perpendicular to the third connecting surface. The third connecting surface may be provided with an axial hole that cooperates with the third rotating shaft 23. The third rotating shaft 23 is inserted into the axial hole to fix the rotating shaft.

[0059] In one embodiment, referring to Figures 2, 3, and 5, the rocking arm 15 includes a first cooperating portion 151. The cam 11 includes a second cooperating portion 113. The first cooperating portion 151 is connected to the second cooperating portion 113 such that the rocking arm 15 rotates the cam 11 during the transition from a locked state to an unlocked state. Specifically, the first cooperating portion 151 may be a hole provided in the rocking arm 15. The second cooperating portion 113 may be a spherical projection extending from the cam 11, which extends into and engages within the hole. In this way, the rocking arm 15 can rotate the cam 11 when it rocks from end to end. Of course, in other embodiments, the first cooperating portion 151 and the second cooperating portion 113 may be implemented in other structures, and this is not particularly limited. The second cooperating portion 113 is preferably positioned at the end of the cam 11 facing the second projection 112 such that the second cooperating portion 113 is located furthest from the second projection 112, thereby increasing the displacement stroke of the second projection 112.

[0060] In one embodiment, referring to Figure 2, the locking mechanism 100 further includes a tension wire 16 and a slider 17 connected to each other. The slider 17 is connected to the rocking arm 15. The tension wire 16 is configured to be connected to an external drive mechanism. In the process of switching between the locked and unlocked states, the tension wire 16 is extended or retracted to move the slider 17, and the slider 17 rotates the rocking arm 15. Specifically, the slider 17 may be housed in the aforementioned second housing cavity and connected to the lower housing 202. A small slider 17 is connected to the end of the rocking arm 15 furthest from the first cooperating portion 151. The tension wire 16 is connected separately to the drive mechanism and the slider 17. The drive mechanism moves the slider 17 from side to side via the tension wire 16, thereby rotating the rocking arm 15 around the third rotating shaft 23.

[0061] In other embodiments, the swing arm 15 may instead be driven by other means, such as a tension rod.

[0062] In one embodiment, referring to Figure 2, the locking mechanism 100 further includes a second gear 18. The second gear 18 is mounted on a fourth rotating shaft 24 and connected to the first gear 13. The second gear 18 is further configured to connect to an external driven mechanism. In the process of switching from a locked state to an unlocked state, the first gear 13 rotates the second gear 18 to unlock the external driven mechanism. Specifically, the fourth rotating shaft 24 is connected to a lower housing 202, and the axial directions of the fourth rotating shaft 24 and the first rotating shaft 21 are parallel. The second gear 18 meshes with the first gear 13.

[0063] In one possible embodiment, referring to Figure 2, the locking mechanism 100 further includes a second circlip 193. The second circlip 193 is sleeved between the fourth rotating shaft 24 and the upper housing 201 and is configured to secure the fourth rotating shaft 24 and the second gear 18.

[0064] The complete operation of the locking mechanism 100 is described in detail below.

[0065] Switching to the unlocked state. First, the drive mechanism extends or retracts the tension wire 16, which pushes the slider 17 and slides on the lower housing 202, which rotates the oscillating arm 15 around the third rotating shaft 23, which rotates the cam 11 around the first rotating shaft 21, which rotates the locking arm 12 around the second rotating shaft 22 and separates it from the first gear 13. The cam 11 then continues to rotate so as to rotate the connecting arm 14 around the first rotating shaft 21. The connecting arm 14 compresses the torsion spring 191 so as to rotate the first gear 13. The first gear 13 rotates the second gear 18 around the fourth rotating shaft 24. The second gear 18 unlocks the driven mechanism.

[0066] Switching to the locked state. The drive mechanism extends or retracts the pull wire 16, which pushes the slider 17 and slides on the lower housing 202, which slides the oscillating arm 15 around the third rotating shaft 23, which rotates the cam 11 around the first rotating shaft 21. The cam 11 then resets and rotates the first gear 13, which resets the second gear 18. When the cam 11 rotates at a certain angle, it can reset and rotate the lock arm 12, which reconnects to and engages with the first gear 13.

[0067] Furthermore, this application further provides a door locking device. Referring to Figure 7, the door locking device 200 can use the locking mechanism 100 according to the above embodiment. The door locking device 200 can be used in a vehicle or in other mechanical structures that require locking or unlocking, and this is not particularly limited.

[0068] Furthermore, this application further provides a vehicle 1000. Referring to Figure 8, the vehicle 1000 includes a vehicle door 101 and a locking mechanism 100 according to the above embodiment. The locking mechanism 100 is mounted inside the vehicle door 101.

[0069] In this description of the embodiments of this application, the orientation or positional relationships indicated by terms such as “center,” “top,” “bottom,” “left,” “right,” “vertical,” “horizontal,” “inside,” and “outside” are based on the orientation or positional relationships shown in the drawings and are solely for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, must be configured in a particular orientation, or must operate in a particular orientation. Therefore, these terms should not be construed as limiting this application.

[0070] The embodiments disclosed above are merely preferred embodiments of this application and, naturally, cannot be used to limit the scope of the claims of this application. A person skilled in the art will understand that all or part of the process of carrying out the above embodiments, and equivalent modifications made in accordance with the claims of this application, are still included in the scope covered by this application. [Explanation of Symbols]

[0071] 100 Locking Mechanism 11 Cam 111 The first trench 111A Inside side wall 111B Outer side wall 112 Second projection 113 Second collaborative part 12 Lock Arm 12A Rotating part 12B Main parts 121 First projection 122 Hooks 123 Lever 13. First Gear 131 Holding Table 132 Gear body 14 connecting arms 141 The second trench 15. Swivel Arm 151 First collaborative part 16. Tension wire 17 Slider 18. Second Gear 191 Torsion spring 192 First circlip 193 Second circlip 20 Housing 201 Upper Housing 202 Lower Housing 203 Bottom Housing 21 First rotating shaft 22 Second rotating shaft 23 Third rotating shaft 24. Fourth rotating shaft 25 screws 200 Door Locking Devices 1000 vehicles 101 Vehicle Doors

Claims

1. A cam (11) is rotatably connected to the first rotating shaft (21), A lock arm (12) is rotatably connected to a second rotating shaft (22) and connected to the cam (11), A first gear (13) is rotatably connected to the first rotating shaft (21) and connected to the cam (11), A locking mechanism (100) comprising, The status of the locking mechanism (100) includes a locked state and an unlocked state. In the locked state, the lock arm (12) is connected to the first gear (13), and the first gear (13) is fixed to the first rotating shaft (21). A locking mechanism (100) is configured such that, in the process of switching from the locked state to the unlocked state, the cam (11) rotates around the first rotating shaft (21) to rotate the lock arm (12) around the second rotating shaft (22), the lock arm (12) is separated from the first gear (13), and the cam (11) rotates the first gear (13) relative to the first rotating shaft (21).

2. The locking mechanism (100) according to claim 1, further comprising a housing (20), the housing (20) comprising a detachably connected upper housing (201) and a lower housing (202), and the first rotating shaft (21) and the second rotating shaft (22) being connected to the lower housing (202).

3. The locking mechanism (100) according to claim 2, wherein the first rotating shaft (21), the second rotating shaft (22), and the lower housing (202) are integrally structured.

4. A locking mechanism (100) according to any one of claims 1 to 3, wherein the cam (11) is provided with a first groove (111), the locking arm (12) is provided with a first projection (121), the first groove (111) extends in an arc on the cam (11) around the first rotating shaft (21), and the first projection (121) penetrates the first groove (111) and moves within the first groove (111).

5. The locking mechanism (100) according to claim 4, wherein the plurality of first grooves (111) on the first rotating shaft (21) have the same radius and the groove width of the first grooves (111) remains unchanged, or the plurality of first grooves (111) on the first rotating shaft (21) have different radii and the groove width of the first grooves (111) remains unchanged.

6. The locking mechanism (100) according to claim 4, wherein the locking arm (12) comprises a rotating portion (12A) and a main portion (12B) connected to each other, the rotating portion (12A) is connected to the second rotating shaft (22) and configured to rotate, the main portion (12B) extends outward from the rotating portion (12A) and is connected to the first gear (13), the main portion (12B) is positioned between the cam (11) and the first gear (13), and the first projection (121) is connected to the main portion (12B) and positioned on the side of the main portion (12B) facing the cam (11).

7. A locking mechanism (100) according to any one of claims 1 to 3, wherein the locking arm (12) comprises a hook (122), the first gear (13) comprises a retaining table (131), the hook (122) is positioned at the end of the locking arm (12) furthest from the second rotating shaft (22), the retaining table (131) protrudes from one side of the first gear (13) toward the cam (11), in the locked state the hook (122) is connected to the retaining table (131) to restrict the rotation of the first gear (13) around the first rotating shaft (21), and in the unlocked state the hook (122) is separated from the retaining table (131).

8. The locking mechanism (100) according to any one of claims 1 to 3, further comprising a connecting arm (14), the connecting arm (14) being mounted on the first rotating shaft (21) and positioned between the cam (11) and the first gear (13), wherein in the process of switching from the locked state to the unlocked state, the cam (11) is configured to rotate the connecting arm (14), and the connecting arm (14) rotates the first gear (13).

9. The locking mechanism (100) according to claim 8, further comprising a torsion spring (191), wherein the torsion spring (191) is positioned between the connecting arm (14) and the first gear (13), and the connecting arm (14) is configured to rotate the first gear (13) via the torsion spring (191).

10. The locking mechanism (100) according to claim 8, wherein the cam (11) has a second projection (112), the connecting arm (14) has a second groove (141), and the second projection (112) passes through the second groove (141) and moves within the second groove (141).

11. The locking mechanism (100) according to claim 10, wherein the radius from the second groove (141) to the first rotating shaft (21) is the same, and the groove width of the second groove (141) remains unchanged.

12. The locking mechanism (100) according to any one of claims 1 to 3, further comprising a swing arm (15), wherein the swing arm (15) is mounted on a third rotating shaft (23), the swing arm (15) is connected to the cam (11), and in the process of switching from the locked state to the unlocked state, the swing arm (15) is configured to rotate around the third rotating shaft (23) to rotate the cam (11).

13. The device further comprises a swing arm (15), the swing arm (15) is mounted on a third rotating shaft (23), the swing arm (15) is connected to the cam (11), and in the process of switching from the locked state to the unlocked state, the swing arm (15) is configured to rotate around the third rotating shaft (23) to rotate the cam (11), The locking mechanism (100) according to claim 2 or 3, further comprising a bottom housing (203), the bottom housing (203) being detachably connected to the lower housing (202), and the third rotating shaft (23) being connected to the bottom housing (203).

14. The locking mechanism (100) according to claim 13, wherein the third rotating shaft (23) and the bottom housing (203) are integrally structured.

15. The locking mechanism (100) according to claim 12, wherein the rocking arm (15) comprises a first cooperating portion (151), the cam (11) comprises a second cooperating portion (113), the first cooperating portion (151) is connected to the second cooperating portion (113), and in the process of switching from the locked state to the unlocked state, the rocking arm (15) is configured to rotate the cam (11).

16. The locking mechanism (100) according to claim 12, further comprising a tension wire (16) and a slider (17) connected to each other, wherein the slider (17) is connected to the oscillating arm (15), the tension wire (16) is connected to an external drive mechanism, and in the process of switching between the locked state and the unlocked state, the tension wire (16) is configured to extend or retract in order to move the slider (17), and the slider (17) is configured to rotate the oscillating arm (15).

17. A locking mechanism (100) according to any one of claims 1 to 3, further comprising a second gear (18), the second gear (18) being mounted on a fourth rotating shaft (24) and connected to the first gear (13), the second gear (18) being further connected to an external driven mechanism, and the first gear (13) being configured to rotate the second gear (18) in order to unlock the external driven mechanism during the process of switching from the locked state to the unlocked state.

18. The present invention further comprises a second gear (18), the second gear (18) being mounted on a fourth rotating shaft (24) and connected to the first gear (13), the second gear (18) being further connected to an external driven mechanism, and the first gear (13) being configured to rotate the second gear (18) in order to unlock the external driven mechanism during the process of switching from the locked state to the unlocked state. The locking mechanism (100) according to claim 2 or 3, further comprising a second circlip (193) which is sleeved between the fourth rotating shaft (24) and the upper housing (201) and configured to secure the fourth rotating shaft (24) and the second gear (18).

19. A door locking device (200) comprising a locking mechanism (100) according to any one of claims 1 to 3.

20. A vehicle (1000) comprising a vehicle door (101) and a locking mechanism (100) according to any one of claims 1 to 3, wherein the locking mechanism (100) is installed inside the vehicle door (101).

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