Locking mechanism, door locking device, and vehicle

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] This application claims priority to Chinese Patent Application No. 202310089936.5, entitled "LOCKING MECHANISM, DOOR LOCK APPARATUS, AND VEHICLE," filed with the State Intellectual Property Office on January 17, 2023, which is incorporated herein by reference in its entirety.

[0002] The present application relates to the technical field of vehicle parts, and more particularly to a lock mechanism, a door lock device, and a vehicle. [Background technology]

[0003] To achieve the unlocking and locking functions, most existing vehicle door locks have a complex structure and a large number of parts and require a motor drive, which makes the vehicle door lock bulky and costly. Summary of the Invention

[0004] The purpose of this application is to provide a locking mechanism, a door locking device, and a vehicle, which has a simple structure and does not require a motor drive, thereby meeting the design requirements of compactness and low cost.

[0005] In order to achieve the objectives of this application, this application provides the following technical solutions:

[0006] According to a first aspect, the present application provides a locking mechanism including 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, and the first gear is fixed relative to the first rotating shaft. In a 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, and the locking arm is disengaged 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 including an upper housing and a lower housing that are separably connected, and the first rotating shaft and the second rotating shaft are connected to the lower housing.

[0008] In one embodiment, the first rotatable shaft, the second rotatable shaft, and the lower housing are of unitary construction.

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

[0010] In one embodiment, the plurality of first grooves for the first rotatable shaft have the same radius, and the groove width of the first grooves remains unchanged.

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

[0012] In one embodiment, the locking arm includes a rotating portion and a main portion connected to each other. The rotating portion is connected to and configured to rotate with a second rotating shaft. The main portion extends outward from the rotating portion and is connected to a first gear. The main portion is disposed between the cam and the first gear. A first protrusion is connected to the main portion and disposed on a 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 disposed at an end of the locking arm distal to the second rotatable shaft. The retaining table protrudes from one side of the first gear toward the cam. In a locked state, the hook is connected to the retaining table to limit rotation of the first gear about the first rotatable shaft. In an unlocked state, the hook is disconnected from the retaining table.

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

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

[0016] In one embodiment, the cam includes a second protrusion, and the connecting arm is provided with a second groove, and the second protrusion passes through 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 swing arm. The swing arm is mounted on a third rotating shaft. The swing arm is connected to a cam. The swing arm is configured to rotate about the third rotating shaft to rotate the cam during switching from the locked state to the unlocked state.

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

[0020] In one embodiment, the third rotatable shaft and the bottom housing are of unitary construction.

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

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

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

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

[0025] According to a second aspect, the present application further provides a door locking device including a 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 including a vehicle door and a 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 locking arm is disposed to connect to the first gear and engages with the first gear to realize the locked state of the locking mechanism. The cam then rotates to first rotate the locking arm and separate it from the first gear so that the first gear has a tendency to rotate. The cam then continues to rotate to correspondingly rotate the first gear, thereby achieving the unlocked state. The locking mechanism has a simple structure, which can improve manufacturing and assembly efficiency. Furthermore, fewer parts cooperate to reduce the space occupied by the locking mechanism, thereby meeting the design requirement for miniaturization. Furthermore, the above-described unlocking process is simple and does not require a motor, thereby significantly reducing the cost of the motor drive.

[0028] In order to more clearly show the technical solutions in the embodiments of the present application or the prior art, the drawings that need to be used in the description of the embodiments or the prior art are briefly introduced below. Of course, 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 explanation of the drawings]

[0029] [Figure 1]FIG. 1 is a diagram of the apparent structure of a locking mechanism according to one embodiment. [Figure 2] FIG. 1 is an exploded view of a locking mechanism according to one embodiment. [Figure 3] FIG. 10 is a diagram illustrating the positional relationship between a cam, a lock arm, and a first gear in a locked state according to one embodiment. [Figure 4] FIG. 10 is a diagram illustrating the positional relationship between the connecting arm, the lock arm, and the first gear in a locked state according to an embodiment. [Figure 5] FIG. 10 is a diagram illustrating the positional relationship between a cam, a lock arm, and a first gear in an unlocked state according to one embodiment. [Figure 6] FIG. 10 is a diagram illustrating the positional relationship between the connecting arm, the locking arm, and the first gear in an unlocked state according to one embodiment. [Figure 7] FIG. 1 is a diagram of a door lock device according to one embodiment. [Figure 8] 1 is a diagram of a vehicle according to one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0030] The following clearly and completely describes the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. It is obvious that the described embodiments are only some, not all, of the 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 being "fixed" to another assembly, the assembly may be directly on the other assembly, or an intermediate assembly may be present. When an assembly is considered to be "connected" to another assembly, the assembly may be directly connected to the other assembly, or an intermediate assembly may be present at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are not intended to limit the application, but merely to describe specific embodiments. The term "and / or" used in this application includes any combination of one or more of the associated listed items.

[0033] The following describes in detail some embodiments of the present application with reference to the accompanying drawings. Unless contradictory, the following embodiments and features within the embodiments can be combined with each other.

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

[0035] 1 and 2, in one embodiment, a 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 states of the locking mechanism 100 include a locked state and an unlocked state. In the locked state, the locking arm 12 is connected to the first gear 13 such that the first gear 13 is fixed relative to 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 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.

[0036] Specifically, the locking mechanism 100 may be attached to a vehicle body or a vehicle door. The locking mechanism 100 is configured to cooperate with a driving mechanism and a driven mechanism to be locked and unlocked. Referring to FIG. 1 , the locking mechanism 100 includes a housing 20. The housing 20 includes an upper housing 201 and a lower housing 202 that are separably connected. The upper housing 201 and the lower housing 202 are connected to surround a first housing cavity. The cam 11, the locking arm 12, and the first gear 13 are all housed in the first housing cavity. The first rotating shaft 21 and the 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 to each other.

[0037] In one embodiment, the first rotating shaft 21, the second rotating shaft 22, and the lower housing 202 are of a unitary structure. It can be understood that the lower housing 202 can be of an injection-molded structure. Thus, the first rotating shaft 21 and the second rotating shaft 22 can be of a cylindrical structure 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 connecting surface and the second connecting surface 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 rotating shaft 21 and the second rotating shaft 22. The first rotating shaft 21 and the second rotating shaft 22 are inserted into the corresponding axial holes to secure the rotating shafts.

[0038] In one embodiment, the locking mechanism 100 further includes a screw 25. A threaded hole is provided in each of the upper housing 201 and the lower housing 202. The screw 25 passes through threads on the first connecting surface and the second connecting surface to secure the upper housing 201 and the lower housing 202 together. Therefore, the insertion direction of the screw 25 can be the same as the axial direction of the first rotating shaft 21 and the second rotating shaft 22. Of course, in other embodiments, other fixing modes are possible and are not limited herein.

[0039] In one embodiment, the first gear 13 may be disposed 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 the vehicle. The first gear 13 may be directly or indirectly connected to the driven mechanism described above, which may be a door lock device on the vehicle door or 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 locking arm 12 is not driven by the cam 11 and remains stationary. The locking arm 12 is connected to and engaged with the first gear 13 such 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 locking arm 12 is engaged relative to the gear ring of the first gear 13 such that the first gear 13 cannot rotate. Of course, in other embodiments, the locking arm 12 can instead be engaged with the first gear 13 at another position.

[0041] In the process of switching 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 to be disengaged from the first gear 13. The first gear 13 is disengaged and can rotate clockwise or counterclockwise around the first rotating shaft 21 accordingly under the drive of the cam 11. Finally, a 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 can be driven by the drive mechanism to rotate counterclockwise or clockwise around the first rotating shaft 21. Furthermore, the cam rotates the first gear 13 counterclockwise or clockwise around the first rotating shaft 21 to reset it. Then, the cam 11 rotates the lock arm 12 counterclockwise or clockwise around the second rotating shaft 22 to reset it until the first gear 13 is engaged, thereby completing the locking.

[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 positioned in the first position, the locking mechanism 100 is in a locked state. As the cam 11 rotates around the first rotating shaft 21 in a certain direction from the first position to the second position, the cam 11 disengages the locking arm 12 from the first gear 13. When the cam 11 is positioned in the second position, the locking arm 12 is disengaged 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 in the aforementioned direction from the second position to the third position, the cam 11 rotates the first gear 13. When the cam 11 is positioned in the third position, the first gear 13 rotates to the final unlocked position.

[0044] In the present application, the locking arm 12 is arranged and configured to connect to the first gear 13 and engage with the first gear 13 to realize the locked state of the locking mechanism 100. The cam 11 then rotates to first rotate the locking arm 12 and separate it from the first gear 13 so that the first gear 13 has a tendency to rotate. The cam 11 then continues to rotate to correspondingly rotate the first gear 13, thereby achieving the unlocked state. The locking mechanism 100 has a simple structure, which can improve manufacturing and assembly efficiency. Furthermore, fewer parts cooperate to reduce the space occupied by the locking mechanism 100, thereby meeting the design requirement for miniaturization. Furthermore, the above-described unlocking process is simple and does not require a motor, thereby significantly reducing the cost of the motor drive.

[0045] In one embodiment, referring to FIGS. 3 and 5, the cam 11 is provided with a first groove 111. The lock arm 12 includes a first protrusion 121. The first groove 111 extends in an arc around the first rotating shaft 21 on the cam 11. The first protrusion 121 passes through 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. The first groove 111 may extend through 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 that are connected to each other. The rotating portion 12A is connected to and rotates on the second rotating shaft 22. Main portion 12B extends outward from one side of rotating portion 12A until the main portion is connected to first gear 13. Main portion 12B is disposed between cam 11 and first gear 13. First protrusion 121 is connected to main portion 12B and is disposed on the side of main portion 12B facing cam 11.

[0046] In one embodiment, the first groove 111 extends in an arc around the first rotating shaft 21 on the cam 11, and the multiple first grooves 111 for the first rotating shaft 21 have the same radius. The groove width of the first groove 111 remains unchanged. For example, the two opposing sides of the first groove 111 are the inner sidewall 111A and the outer sidewall 111B. The inner sidewall 111A is closer to the first rotating shaft 21 than the outer sidewall 111B. Furthermore, the distance from all points on the inner sidewall 111A to the first rotating shaft 21 is the same, and the distance from all points on the outer sidewall 111B to the first rotating shaft 21 is also the same. As shown in the figure, when the cam 11 is positioned in the first position, the first protrusion 121 is positioned at the rightmost position of the first groove 111. 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 first protrusion 121 moves to the leftmost side of the first groove 111 under the pressure of the inner side wall 111A, so that 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 another embodiment, the multiple first grooves 111 for the first rotating shaft 21 have different radii. The groove width of the first groove 111 remains unchanged. For example, the two opposing sides of the first groove 111 are an inner sidewall 111A and an outer sidewall 111B. The inner sidewall 111A is closer to the first rotating shaft 21 than the outer sidewall 111B. As shown in the figure, the distance from the inner sidewall 111A to the first rotating shaft 21 increases in the counterclockwise direction, and the distance from the outer sidewall 111B to the first rotating shaft 21 also increases in the counterclockwise direction. It can be seen that the leftmost side of the first groove 111 is farther from the first rotating shaft 21 than the rightmost side of the first groove 111. The manner in which the first protrusion 121 moves within the first groove 111 can be seen in the above-described embodiment. It can be seen that in this embodiment, the cam 11 rotates to push the main portion 12B away from the cam 11, to enable the cam 11 to push the locking arm 12 to be disengaged from the first gear 13. The centrifugal radius of the first groove 111 is increased to obtain the effect of pushing the locking arm 12 away using the first protrusion 121.

[0048] 4 and 6, in one embodiment, the lock arm 12 includes a hook 122. The first gear 13 includes a retaining table 131. The hook 122 is disposed at an end of the lock arm 12 remote 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 to limit 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 portion 12B includes a hook 122 and a lever 123. Two ends of the lever 123 are connected to the rotating portion 12A and the hook 122, respectively. The hook 122 is connected to the lever 123 at an included angle. The first gear 13 includes a gear body 132 and a holding table 131. The gear body 132 is a wheel rim including a gear ring. The holding table 131 is a structure that protrudes from the side of the gear body 132 facing the cam 11. Therefore, the holding table 131 is disposed between the cam 11 and the gear body 132. The holding table 131 protrudes from the gear body 132 in a rotational manner toward the cam 11. For example, the holding table 131 extends from the starting point to the end point in a ring shape, such that the starting point and the end point are connected end to end and protrude further from the surface of the gear body 132 than the starting point. Therefore, the hook 122 can be connected to the end point of the holding table 131 in a locked state. The process of separating the hook 122 from the holding table 131 can be referred to in the above-described embodiment.

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

[0051] Specifically, the connecting arm 14 may be disposed between the holding table 131 and the cam 11 in the above-described embodiment, and the connecting arm 14 may be separately engaged with the cam 11 and the first gear 13. When the cam 11 rotates in a certain direction around the first rotating shaft 21 from a first position to a second position, the connecting arm 14 may be kept stationary relative to the first rotating shaft 21. As the cam 11 continues to rotate in the aforementioned direction around the first rotating shaft 21 from the second position to a third position, 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 FIG. 2 , the locking mechanism 100 further includes a torsion spring 191. The torsion spring 191 is disposed between the connecting arm 14 and the first gear 13. The connecting arm 14 rotates the first gear 13 via the torsion spring 191. For example, the connecting arm 14 includes a ring-shaped first engagement portion (not shown), which surrounds the first rotating shaft 21. The first gear 13 includes a ring-shaped second engagement portion (not shown), which surrounds the first rotating shaft 21. Two opposing ends of the torsion spring 191 extend to the first engagement portion and the second engagement portion, respectively. When the connecting arm 14 rotates, the torsion spring 191 is simultaneously compressed in a direction near the first gear 13 so as to rotate the first gear 13. 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, so that the connecting arm 14 is reset.

[0053] 4 and 6, in one embodiment, the cam 11 includes a second protrusion 112. The connecting arm 14 is provided with a second groove 141. The second protrusion 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 protrusion 112 is disposed beside 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. Of course, the second groove may instead extend in a straight line, and this is not particularly limited. The specific movement relationship of the second protrusion 112 within the second groove 141 is such that when the cam 11 is positioned in the first position, the second protrusion 112 is positioned at the leftmost side 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 protrusion 112 moves to the rightmost position of the second groove 141, but this can be understood as simply the cam 11 rotating and the second protrusion 112 moving within the second groove 141, and not driving the lock arm 12. When the cam 11 rotates from the second position to the third position, the cam 11 continues to rotate clockwise around the first rotating shaft 21. Because the second protrusion 112 is already positioned at the rightmost position of the second groove 141, the second protrusion 112 can push the connecting arm 14 and rotate it clockwise as well.

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

[0056] 2, in one embodiment, the locking mechanism 100 further includes a bottom housing 203. The bottom housing 203 is detachably connected to the lower housing 202, and the bottom housing 203 and the lower housing 202 enclose a second accommodating cavity. The aforementioned swing arm 15 is accommodated in the second accommodating 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 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 of a unitary structure. It can be understood that the housing can be of an injection-molded structure. Thus, the third rotating shaft 23 can be of a cylindrical structure protruding from the bottom housing 203. The bottom 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 bottom housing 202, the third connecting surface and the fourth connecting surface face each other. The axial direction of the third rotating shaft 23 is perpendicular to the third connecting surface. The third connecting surface can 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] 2, 3, and 5, in one embodiment, the swing 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 so that the swing arm 15 rotates the cam 11 during switching from a locked state to an unlocked state. Specifically, the first cooperating portion 151 may be a hole provided in the swing arm 15. The second cooperating portion 113 may be a spherical protrusion extending from the cam 11, the spherical protrusion extending into and engaging with the hole. In this manner, the swing arm 15 can rotate the cam 11 as it swings 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, which is not particularly limited. The second cooperating portion 113 is preferably positioned at the end of the cam 11 opposite the second protrusion 112 so that the second cooperating portion 113 is located furthest from the second protrusion 112, thereby increasing the displacement stroke of the second protrusion 112.

[0060] In one embodiment, referring to FIG. 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 swing arm 15. The tension wire 16 is configured to be connected to an external drive mechanism. In the process of switching between the locked state and the unlocked state, the tension wire 16 is extended or retracted to move the slider 17, which rotates the swing arm 15. Specifically, the slider 17 may be housed in the second housing cavity and connected to the lower housing 202. A small slider 17 is connected to the end of the swing arm 15 far from the first cooperating portion 151. The tension wire 16 is separately connected to the drive mechanism and the slider 17. The drive mechanism moves the slider 17 left and right via the tension wire 16, thereby rotating the swing arm 15 around the third rotation shaft 23.

[0061] In other embodiments, the swing arm 15 may instead be driven in other ways, such as by a drawbar.

[0062] In one embodiment, referring to FIG. 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 the locked state to the 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 the 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 is meshed with the first gear 13.

[0063] 2, in one possible embodiment, 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 configured to secure the fourth rotating shaft 24 and the second gear 18.

[0064] The complete operating process 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 to slide on the lower housing 202. The slider 17 rotates the swing arm 15 around the third rotating shaft 23. The swing arm 15 rotates the cam 11 around the first rotating shaft 21. The cam 11 rotates the lock arm 12 around the second rotating shaft 22, separating it from the first gear 13. The cam 11 then continues to rotate, causing the connecting arm 14 to rotate around the first rotating shaft 21. The connecting arm 14 compresses the torsion spring 191, causing the first gear 13 to rotate. 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 tension wire 16, which pushes the slider 17 to slide on the lower housing 202. The slider 17 rotates the swing 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 specific angle, it can reset and rotate the lock arm 12, which is then reconnected to and engaged with the first gear 13.

[0067] The present application further provides a door lock device 200. Referring to Fig. 7, the door lock device 200 can use the lock mechanism 100 according to the above embodiment. The door lock device 200 can be used in, but is not limited to, a vehicle or other mechanical structure that requires locking or unlocking.

[0068] Additionally, the present 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 within the vehicle door 101.

[0069] It should be noted that in the description of this embodiment of the present application, the orientation or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the orientation or positional relationships shown in the drawings, and this is merely for the purpose of facilitating and simplifying the description of the present application, and is not intended to indicate or imply that the referred to device or element must have a particular orientation, be configured in a particular orientation, or be operated in a particular orientation. Therefore, these terms should not be construed as limiting the present application.

[0070] The above disclosure is merely a preferred embodiment of the present application, which of course cannot be used to limit the scope of the claims of the present application. Those skilled in the art can understand that all or part of the process of implementing the above embodiment and equivalent modifications made according to the claims of the present application still fall within the scope covered by the present application. [Explanation of symbols]

[0071] 100 Locking mechanism 11 Cam 111 First Groove 111A Inside side wall 111B Outer side wall 112 Second protrusion 113 Second Collaborative Part 12 Lock Arm 12A Rotating part 12B Main parts 121 First protrusion 122 Hook 123 Lever 13 First Gear 131 Holding table 132 Gear body 14 Connecting arm 141 Second Groove 15 Swing arm 151 First Collaborative Part 16 Pulling 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 Lock Devices 1000 vehicles 101 Vehicle door

Claims

1. a cam (11) rotatably connected to a first rotating shaft (21); a lock arm (12) rotatably connected to a second rotating shaft (22) and connected to said cam (11); a first gear (13) 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 relative to the first rotating shaft (21); A locking mechanism (100) configured such that, during 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 locking arm (12) around the second rotating shaft (22), the locking 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. 2. The locking mechanism (100) of claim 1, further comprising a housing (20), the housing (20) comprising an upper housing (201) and a lower housing (202) that are separably connected, the first rotating shaft (21) and the second rotating shaft (22) being connected to the lower housing (202).

3. 3. The locking mechanism (100) of claim 2, wherein the first rotating shaft (21), the second rotating shaft (22), and the lower housing (202) are of one piece construction.

4. 4. The locking mechanism (100) according to claim 1, wherein the cam (11) is provided with a first groove (111), the locking arm (12) comprises a first protrusion (121), the first groove (111) extends in an arc around the first rotating shaft (21) on the cam (11), and the first protrusion (121) passes through the first groove (111) and moves within the first groove (111).

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

6. 5. The locking mechanism (100) of 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 disposed between the cam (11) and the first gear (13), and the first protrusion (121) is connected to the main portion (12B) and disposed on a side of the main portion (12B) facing the cam (11).

7. 7. The locking mechanism (100) of claim 1, wherein the locking arm (12) comprises a hook (122), the first gear (13) comprises a holding table (131), the hook (122) is disposed at an end of the locking arm (12) remote from the second rotating shaft (22), the holding table (131) protruding from one side of the first gear (13) toward the cam (11), and in the locked state, the hook (122) is connected to the holding table (131) to limit rotation of the first gear (13) around the first rotating shaft (21), and in the unlocked state, the hook (122) is separated from the holding table (131).

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

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

10. 10. The locking mechanism (100) according to claim 8 or 9, wherein the cam (11) comprises a second protrusion (112), the connecting arm (14) is provided with a second groove (141), and the second protrusion (112) passes through and moves within the second groove (141).

11. 11. The locking mechanism (100) of 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. 12. The locking mechanism (100) of claim 1, further comprising a swing arm (15), the swing arm (15) being mounted on a third rotating shaft (23), the swing arm (15) being connected to the cam (11), and configured to rotate around the third rotating shaft (23) to rotate the cam (11) during the process of switching from the locked state to the unlocked state.

13. 13. The locking mechanism (100) of claim 12, further comprising a bottom housing (203), said bottom housing (203) detachably connected to said lower housing (202), and said third rotating shaft (23) connected to said bottom housing (203).

14. 14. The locking mechanism (100) of claim 13, wherein the third rotating shaft (23) and the bottom housing (203) are of one piece construction.

15. 15. A locking mechanism (100) according to any one of claims 12 to 14, wherein the oscillating 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 the oscillating arm (15) is configured to rotate the cam (11) in the process of switching from the locked state to the unlocked state.

16. 16. The locking mechanism (100) of claim 12, further comprising a tension wire (16) and a slider (17) connected to each other, the slider (17) being connected to the swing arm (15), the tension wire (16) being connected to an external drive mechanism, and in the process of switching between the locked state and the unlocked state, the tension wire (16) being configured to be extended or retracted to move the slider (17), and the slider (17) being configured to rotate the swing arm (15).

17. 17. The locking mechanism (100) of claim 1, 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 configured such that, during the process of switching from the locked state to the unlocked state, the first gear (13) rotates the second gear (18) to unlock the external driven mechanism.

18. 18. The locking mechanism (100) of claim 17, further comprising a second circlip (193), the second circlip (193) being 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 18.

20. A vehicle (1000) comprising a vehicle door (101) and a locking mechanism (100) according to any one of claims 1 to 19, wherein the locking mechanism (100) is mounted within the vehicle door (101).

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