Lock mechanism, handrail device, and vehicle

Abstract

This application provides a locking mechanism, a handrail device, and a vehicle, belonging to the technical field of vehicle components. The locking mechanism includes: a first locking tongue, rotatably mounted on a first locking member; and a second locking tongue, rotatably mounted on the first locking tongue. The second locking tongue is configured to rotate towards the side of the second locking member when pressure is applied by the second locking member, causing the first locking tongue to rotate away from the side of the second locking member, so that the first locking tongue inserts into the second locking member. The first locking tongue is configured to rotate towards the side of the second locking member to reset after the second locking tongue inserts into the second locking member, and to maintain the second locking tongue in the inserted state. This ensures a stable and reliable latch between the locking mechanism and the handrail, preventing the locking mechanism from disengaging due to incomplete engagement.

Description

Technical Field

[0001] This application relates to the field of vehicle component technology, and in particular to a locking mechanism, handrail device and vehicle. Background Technology

[0002] Locking mechanisms, as common functional components in automotive interiors, can secure armrests or other parts while the vehicle is in motion, preventing the armrests from being accidentally opened due to vibration or external force.

[0003] In the prior art, the handrail device includes a handrail, a handrail compartment, and a locking mechanism. The handrail is rotatably mounted on one side of the handrail compartment, and the locking mechanism is a single latch structure located on the other side of the handrail compartment. When the user presses the handrail, the handrail rotates and abuts against the latch, driving the latch to rotate. After the handrail is pressed into place, the latch returns to its original position and connects with a buckle on the handrail, locking the handrail in place.

[0004] However, existing locking mechanisms are prone to disengagement and locking failure due to incomplete engagement of the locking mechanism. Utility Model Content

[0005] This application provides a locking mechanism, a handrail device, and a vehicle to solve the problem that existing locking mechanisms are prone to disengagement due to incomplete engagement of the locking mechanism.

[0006] In a first aspect, embodiments of this application provide a locking mechanism, comprising:

[0007] The first locking tongue is rotatably mounted on the first locking member;

[0008] The second locking tongue is rotatably mounted on the first locking tongue, and the rotation axis of the second locking tongue is parallel to the rotation axis of the first locking tongue.

[0009] The second locking tongue is configured to rotate toward the side where the second locking member is located when it is pressed by the second locking member, and drive the first locking tongue away from the side where the second locking member is located, so that the second locking tongue can be inserted into the second locking member.

[0010] The first locking tongue is configured to rotate toward the side where the second locking member is located to reset after the second locking tongue is inserted into the second locking member, and to keep the second locking tongue in the inserted state.

[0011] In one possible implementation, the locking mechanism provided in this application embodiment includes a first locking tongue comprising:

[0012] The first connecting part is used to rotatably connect with the first locking member;

[0013] A limiting part is provided on the first connecting part and is connected to the second locking tongue. The limiting part is configured to abut against the second locking tongue so that the second locking tongue remains in the inserted state.

[0014] The operating part is disposed on the first connecting part and located on the side of the limiting part away from the second locking tongue. The operating part is configured to drive the first locking tongue to rotate away from the side where the second locking member is located when subjected to external force, and drive the second locking tongue to disengage from the second locking member.

[0015] In one possible implementation, the locking mechanism provided in this application embodiment has a limiting part inclined toward the side away from the operating part, and forms a surface contact engagement with the side of the second locking tongue toward the limiting part.

[0016] In one possible implementation, the locking mechanism provided in this application embodiment includes a second locking tongue comprising:

[0017] The second connecting part is connected to the first locking tongue;

[0018] An insertion part is provided on one side of the second connecting part to insert or disengage the second locking member.

[0019] In one possible implementation, the locking mechanism provided in this application embodiment has a first guide surface on the side of the insertion part away from the first locking tongue. The first guide surface is configured to drive the second locking tongue to rotate toward the side where the second locking member is located and move away from the pressure direction relative to the second locking member when it abuts against the second locking member and is pressured by the second locking member, until it disengages from the second locking member.

[0020] The insertion part has a second guide surface on the side facing the first locking tongue. The second guide surface is connected to the first guide surface. The second guide surface is configured to move relative to the second locking member after the first guide surface disengages from the second locking member, so as to insert the second locking member until it abuts against the second locking member, thereby keeping the second locking tongue in the inserted state.

[0021] In one possible implementation, the locking mechanism provided in this application embodiment has a first guide surface and a second guide surface that are both arc-shaped surfaces, and the concave sides of the arc-shaped surfaces are both facing the first locking tongue.

[0022] In one possible implementation, the locking mechanism provided in this application embodiment further includes:

[0023] A bracket is rotatably connected to the first locking tongue, and the bracket is used to be mounted on the first locking member;

[0024] A first rotating shaft is mounted on a bracket, and a first locking tongue is rotatably mounted on the first rotating shaft. The central axis of the first rotating shaft forms the rotation axis of the first locking tongue.

[0025] The second rotating shaft is disposed on the first locking tongue at a distance from the first rotating shaft. The second locking tongue is rotatably disposed on the second rotating shaft, and the central axis of the second rotating shaft forms the rotation axis of the second locking tongue.

[0026] In one possible implementation, the locking mechanism provided in this application embodiment further includes:

[0027] A reset component is provided on the first locking tongue corresponding to the first rotating shaft and connected to the bracket component, so as to drive the first locking tongue to reset after the second locking tongue is inserted into the second locking component.

[0028] Secondly, embodiments of this application provide a handrail device, including a handrail body and a locking mechanism disposed on the handrail body;

[0029] The handrail body includes a handrail compartment and a handrail that is rotatably opened and closed on the handrail compartment. The handrail compartment forms the first locking element and the handrail forms the second locking element.

[0030] Thirdly, embodiments of this application provide a vehicle, including a vehicle body and a locking mechanism disposed on the vehicle body, or, including a vehicle body and a handrail device disposed on the vehicle body.

[0031] The locking mechanism, handrail device, and vehicle provided in this application embodiment include a first locking tongue and a second locking tongue rotatably connected. The first locking tongue is rotatably connected to a first locking member, and the second locking tongue is inserted into a second locking member, thereby locking the first and second locking members together. During the locking process of the first and second locking members, the second locking member applies pressure to the second locking tongue, causing the second locking tongue to rotate towards the side where the second locking member is located under pressure, and causing the first locking tongue to rotate away from the side where the second locking member is located under pressure. Since the first and second locking tongues rotate in opposite directions at this time, and the first locking tongue rotates away from the second locking member, the first locking tongue can reserve space for the latching action between the second locking tongue and the second locking member, thereby increasing the downward stroke of the second locking member, making the downward pressure of the second locking member more sufficient, and facilitating the alignment of the corresponding latch on the second locking member with the second locking member. This allows the second locking tongue to fully insert into the second locking member, ensuring the correct insertion depth and preventing a "partial engagement." Once the second locking member is fully depressed, the first locking tongue loses its pressure and can rotate back towards the side containing the second locking member. At this point, the first locking tongue rotates in the opposite direction to its previous rotation, causing the second locking tongue to also rotate towards and insert into the second locking member. After the second locking tongue is inserted, the first locking tongue, under its resetting action, tends to insert the second locking tongue even deeper, ensuring it remains stably and reliably in the inserted state. The second locking member can then rise to fill the reserved space and lock securely with the second locking tongue. This ensures a stable and reliable latch between the locking mechanism and the handrail, preventing the locking mechanism from disengaging due to incomplete engagement. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0033] Figure 1 This is a schematic diagram of the handrail device provided in the embodiments of this application;

[0034] Figure 2 for Figure 1 A schematic diagram showing the disassembled structure of the center armrest assembly;

[0035] Figure 3 for Figure 1 Top view of the center armrest assembly;

[0036] Figure 4 for Figure 3 AA-direction section Figure 1 ;

[0037] Figure 5 for Figure 3AA-direction section Figure 2 ;

[0038] Figure 6 for Figure 3 AA-direction section Figure 3 ;

[0039] Figure 7 for Figure 4 Schematic diagram of the central locking mechanism;

[0040] Figure 8 for Figure 7 A schematic diagram of the structure of the first locking tongue in the middle;

[0041] Figure 9 for Figure 7 A schematic diagram of the structure of the second locking tongue.

[0042] Explanation of reference numerals in the attached figures:

[0043] 100 - First locking tongue; 110 - First connecting part; 120 - Limiting part; 130 - Operating part;

[0044] 200 - Second locking tongue; 210 - Second connecting part; 220 - Insertion part; 221 - First guide surface; 222 - Second guide surface;

[0045] 300-bracket component;

[0046] 400 - First rotating shaft;

[0047] 500 - Second rotating shaft;

[0048] 600 - Reset component;

[0049] 700 - First locking element;

[0050] 800 - Second locking element; 810 - Mounting base; 820 - Pop-out torsion spring; 830 - Snap-in position.

[0051] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the absence of conflict, the following embodiments and features can be combined with each other.

[0053] In the prior art, the handrail device includes a handrail, a handrail compartment, and a locking mechanism. The handrail is rotatably mounted on one side of the handrail compartment, and the locking mechanism is a single latch structure located on the other side of the handrail compartment. When the user presses the handrail, the handrail rotates and abuts against the latch, driving the latch to rotate. After the handrail is pressed into place, the latch returns to its original position and connects with a buckle on the handrail, locking the handrail in place.

[0054] However, the existing handrail pressing stroke corresponds to the locking tongue position of the locking mechanism. During the pressing and locking process, improper operation or handrail jamming can easily cause the pressing to not be fully completed. At this time, the locking mechanism cannot be fully aligned with the buckle on the handrail, so the locking tongue of the locking mechanism is only partially inserted into the buckle on the handrail, forming a "false buckle" phenomenon where the buckle is not fully engaged. During subsequent vehicle travel, road bumps or external impacts can easily cause the locking mechanism to disengage and the locking to fail.

[0055] To overcome the deficiencies in the prior art, the locking mechanism, handrail device, and vehicle provided in this application embodiment include a first locking tongue and a second locking tongue rotatably connected. The first locking tongue is rotatably connected to a first locking member, and the second locking tongue is inserted into a second locking member, thereby locking the first and second locking members to each other. During the locking process of the first and second locking members, the second locking member applies pressure to the second locking tongue, causing the second locking tongue to rotate towards the side where the second locking member is located under pressure, and causing the first locking tongue to rotate away from the side where the second locking member is located under pressure. Since the first and second locking tongues rotate in opposite directions at this time, and the first locking tongue rotates away from the second locking member, the first locking tongue can reserve space for the latching action between the second locking tongue and the second locking member, thereby increasing the downward stroke of the second locking member, making the downward pressure of the second locking member more sufficient, and facilitating the alignment of the second locking tongue with the corresponding latch on the second locking member. This allows the second locking tongue to fully insert into the second locking member, ensuring the correct insertion depth and preventing a "partial engagement." Once the second locking member is fully depressed, the first locking tongue loses its pressure and can rotate back towards the side containing the second locking member. At this point, the first locking tongue rotates in the opposite direction to its previous rotation, causing the second locking tongue to also rotate towards and insert into the second locking member. After the second locking tongue is inserted, the first locking tongue, under its resetting action, tends to insert the second locking tongue even deeper, ensuring it remains stably and reliably in the inserted state. The second locking member can then rise to fill the reserved space and lock securely with the second locking tongue. This ensures a stable and reliable latch between the locking mechanism and the handrail, preventing the locking mechanism from disengaging due to incomplete engagement.

[0056] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the present invention.

[0057] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this application embodiment provides a locking mechanism, including:

[0058] The first locking tongue 100 is rotatably mounted on the first locking member 700;

[0059] The second locking tongue 200 is rotatably mounted on the first locking tongue 100, and the rotation axis of the second locking tongue 200 is parallel to the rotation axis of the first locking tongue 100.

[0060] The second locking tongue 200 is configured to rotate toward the side where the second locking member 800 is located when it is pressed by the second locking member 800, and drive the first locking tongue 100 to rotate away from the side where the second locking member 800 is located, so that the second locking tongue 200 is inserted into the second locking member 800.

[0061] The first locking tongue 100 is configured to rotate toward the side where the second locking member 800 is located to reset after the second locking tongue 200 is inserted into the second locking member 800, and to keep the second locking tongue 200 in the inserted state.

[0062] It is understood that the first locking element 700 can be an armrest compartment on a vehicle, or other structures on or outside the vehicle that need to be locked. The second locking element 800 can be a corresponding armrest installed on the armrest compartment, or a cover of other structures that need to be locked; this application does not impose any limitations on this. The second locking element 800 is rotatably mounted on the mounting base 810, and a spring-loaded torsion spring 820 is provided between the mounting base 810 and the second locking element 800, so that after the locking mechanism unlocks relative to the second locking element 800, the second locking element 800 can spring up automatically.

[0063] The first locking tongue 100 is rotatably mounted on the first locking member 700 and is rotatable. Typically, the axis of rotation of the first locking tongue 100 can be arranged to pass through the connection between the first locking tongue 100 and the first locking member 700, so that the first locking tongue 100 can rotate as a whole.

[0064] The second latch 200 is rotatably mounted on the first latch 100 and can rotate relative to the first latch 100. This allows the first latch 100 to drive the second latch 200 to rotate together around the rotation axis of the first latch 100, while there is no relative rotation between the second latch 200 and the first latch 100, achieving synchronous rotation of the two latches. Alternatively, the first latch 100 can rotate around its rotation axis, and the second latch 200 can rotate around its own rotation axis, with the rotation axis of the second latch 200 parallel to that of the first latch 100, thus creating a combined rotation of the second latch 200 around both axes.

[0065] The locking mechanism provided in this application includes a first locking tongue 100 and a second locking tongue 200 rotatably connected. The first locking tongue 100 is rotatably connected to a first locking member 700, and the second locking tongue 200 is inserted into a second locking member 800, thereby locking the first locking member 700 and the second locking member 800 together. During the locking process of the first locking member 700 and the second locking member 800, the second locking member 800 applies pressure to the second locking tongue 200, causing the second locking tongue 200 to rotate towards the side where the second locking member 800 is located under the pressure, and causing the first locking tongue 100 to rotate away from the side where the second locking member 800 is located under the pressure. Since the first locking tongue 100 and the second locking tongue 200 rotate in opposite directions at this time, the first locking tongue 100 rotates away from the second locking member 800, which allows the first locking tongue 100 to reserve space for the latching action between the second locking tongue 200 and the second locking member 800. This increases the downward stroke of the second locking member 800, making the downward pressure of the second locking member 800 more sufficient, and facilitating the alignment of the second locking tongue 200 with the corresponding latch 830 on the second locking member 800. Therefore, the second locking tongue 200 can be fully inserted into the second locking member 800 afterward, ensuring the subsequent insertion depth of the second locking tongue 200 and avoiding the phenomenon of "false latching". When the second locking member 800 is pressed into place, the first locking tongue 100 loses the pressure from the second locking member 800 and can rotate back to the side where the second locking member 800 is located. At this time, the rotation direction of the first locking tongue 100 is opposite to the previous rotation direction, and it drives the second locking tongue 200 to also rotate towards the second locking member 800 and insert into the second locking member 800. After the second locking tongue 200 is inserted into the second locking member 800, the first locking tongue 100, under the reset action, can make the second locking tongue 200 tend to insert into the second locking member 800 even deeper, so that the second locking tongue 200 can be stably and reliably maintained in the inserted state. Then the second locking member 800 can rise to make up for the reserved space and lock with the second locking tongue 200. This achieves a stable and reliable latch between the locking mechanism and the handrail, and prevents the locking mechanism from falling out and failing due to not being fully engaged in the latch position 830.

[0066] In some embodiments, refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first locking tongue 100 includes:

[0067] The first connecting part 110 is used to rotatably connect with the first locking member 700;

[0068] A limiting part 120 is provided on the first connecting part 110. The limiting part 120 is connected to the second locking tongue 200. The limiting part 120 is configured to abut against the second locking tongue 200 so that the second locking tongue 200 is kept in the inserted state.

[0069] The operation unit 130 is disposed on the first connecting part 110 and located on the side of the limiting part 120 away from the second locking tongue 200. The operation unit 130 is configured to drive the first locking tongue 100 to rotate away from the side where the second locking member 800 is located when subjected to external force, and drive the second locking tongue 200 to disengage from the second locking member 800.

[0070] The first connecting part 110 is provided with a rotating hole, which is rotatably connected to the first locking member 700. The rotation axis of the first locking tongue 100 passes through the center of the rotating hole, so that the first locking tongue 100 can rotate around the rotation axis of the first locking tongue 100 under the action of the first connecting part 110, which facilitates the user to lock and unlock.

[0071] The limiting part 120 is disposed on the first connecting part 110 and connected to the second locking tongue 200. When the first locking tongue 100 rotates to reset towards the side where the second locking member 800 is located, the limiting part 120 can abut against the second locking tongue 200 to apply a tendency force to the second locking tongue 200 towards the second locking member 800, so that the second locking tongue 200 is stably kept in the inserted state. In this way, even in the locked state, the second locking tongue 200 can also be stably inserted into the second locking member 800, preventing the second locking tongue 200 from accidentally disengaging. Thus, it can effectively avoid the second locking tongue 200 from loosening or disengaging due to external force vibration, collision, or other factors, ensuring that the locking mechanism is always in the locked state.

[0072] The operating part 130 is disposed on the first connecting part 110 and located on the side of the limiting part 120 opposite to the second locking tongue 200, allowing the operating part 130 to be exposed relatively away from the first locking member 700 and the second locking member 800, facilitating unlocking operations. When the operating part 130 is subjected to external force, it can drive the first locking tongue 100 to rotate away from the side where the second locking member 800 is located, and drive the second locking tongue 200 to move or rotate away from the second locking member 800, causing the second locking tongue 200 to disengage from the latch 830 of the second locking member 800. This makes the unlocking process simple and convenient; simply applying external force to the operating part 130 easily achieves the rotation and unlocking actions of the locking tongue.

[0073] Among them, reference Figure 7 and Figure 8 As shown, the limiting part 120 is inclined toward the side opposite to the operating part 130, and forms a surface contact with the side of the second locking tongue 200 toward the limiting part 120.

[0074] It is easy to understand that the limiting part 120 is tilted away from the operating part 130, so that the tilting direction of the limiting part 120 is relatively towards the second locking member 800. In this way, when the limiting part 120 abuts against the second locking tongue 200, the second locking tongue 200 can be subjected to a force along the tilting direction of the limiting part 120, so that the second locking tongue 200 is more stably and reliably kept in the inserted state, and the second locking tongue 200 is prevented from unnecessarily moving away from the latch 830 of the second locking member 800, which would cause it to disengage.

[0075] Furthermore, the surface contact between the limiting part 120 and the second locking tongue 200, compared to point contact or line contact, allows the force between the limiting part 120 and the second locking tongue 200 to be more evenly distributed on the contact surface. The larger contact area also more effectively restricts the wobbling and displacement of the second locking tongue 200 during the locking process, resulting in a tighter fit between the second locking tongue 200 and the second locking member 800.

[0076] Furthermore, a rotating hole is provided on the limiting part 120, through which the second locking tongue 200 is rotatably connected to the limiting part 120, and the rotation axis of the second locking tongue 200 is coaxial with the rotating hole to ensure rotational stability. The operating part 130 can be a button structure extending away from the limiting part 120 and the first connecting part 110, with a prominent and easily noticeable structure, improving operational convenience. To reduce the weight of the first locking tongue 100 while maintaining its structural strength, a cavity can be provided on the first locking tongue 100 at positions corresponding to the operating part 130 and the first connecting part 110, and reinforcing ribs can be spaced within the cavity.

[0077] Furthermore, in some embodiments, reference is made to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, the second locking tongue 200 includes:

[0078] The second connecting part 210 is connected to the first locking tongue 100;

[0079] Insertion part 220 is provided on one side of the second connecting part 210 to insert or disengage the second locking member 800.

[0080] The second connecting part 210 connects to the first locking tongue 100, enabling the second locking tongue 200 and the first locking tongue 100 to cooperate and coordinate their actions, ensuring the effectiveness of the locking and unlocking functions.

[0081] An insertion portion 220 is disposed on the side of the second connecting portion 210 facing the second locking member 800 for insertion into or disengagement from the second locking member 800. The surface of the insertion portion 220 facing away from the second locking member 800 can form a surface contact with the limiting portion 120 so that the limiting portion 120 stably restricts the relative position of the insertion portion 220.

[0082] Among them, reference Figure 7 and Figure 9 As shown, the insertion part 220 has a first guide surface 221 on the side away from the first locking tongue 100. The first guide surface 221 is configured to drive the second locking tongue 200 to rotate toward the side where the second locking tongue 800 is located when it abuts against the second locking member 800 and is subjected to pressure from the second locking member 800, and to move relative to the second locking member 800 away from the pressure direction until it disengages from the second locking member 800.

[0083] The insertion part 220 has a second guide surface 222 on the side facing the first locking tongue 100. The second guide surface 222 is connected to the first guide surface 221. The second guide surface 222 is configured to move relative to the second locking member 800 after the first guide surface 221 disengages from the second locking member 800, so as to insert into the second locking member 800 until it abuts against the second locking member 800, so that the second locking tongue 200 is kept in the inserted state.

[0084] The first guide surface 221 enables the second locking tongue 200 to automatically rotate toward the side where the second locking member 800 is located when it is subjected to pressure from the second locking member 800, and to move away from the pressure direction relative to the second locking member 800 until it disengages from the second locking member 800. This process does not require additional complicated manual operation, simplifies the locking process, and improves the smoothness of locking.

[0085] When the first guide surface 221 disengages from the second locking member 800, as the second locking member 800 continues to be pressed down, the second guide surface 222 guides the insertion part 220 to move relative to the second locking member 800 and accurately inserts into the second locking member 800 until it comes into contact, so that the second locking tongue 200 remains in the inserted state, thereby ensuring that the locking mechanism can lock reliably and improving the security of the locking mechanism.

[0086] The first guide surface 221 and the second guide surface 222 are connected to each other on the side away from the limiting part 120, so that the first guide surface 221 and the second guide surface 222 form a sharp corner structure on the side of the insertion part 220 away from the limiting part 120. The sharp corner structure allows the insertion part 220 to be more easily aligned with the buckle 830 on the second locking member 800, thereby improving the accuracy of the insertion part 220 into the buckle 830.

[0087] In specific implementation, refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, both the first guide surface 221 and the second guide surface 222 are arc-shaped surfaces, and the concave sides of the arc-shaped surfaces face the first locking tongue 100.

[0088] It is understandable that the curved surface allows the contact point of the second locking tongue 200 to change smoothly during contact and relative movement with the second locking member 800, avoiding jamming caused by sharp edges. When the first guide surface 221 is subjected to pressure from the second locking member 800, the curved surface can decompose the pressure into components in multiple directions, thereby allowing the second locking tongue 200 to rotate more smoothly toward the side where the second locking member 800 is located and move away from the direction of pressure, reducing resistance during the unlocking process and making the unlocking operation smoother.

[0089] Moreover, the concave side of the arc-shaped surface faces the first locking tongue 100, so that the first guide surface 221 can better disengage from and engage with the second locking member 800 during the pressing of the second locking member 800 and then enter the latching position 830.

[0090] To further enhance the reliability of the locking between the second locking tongue 200 and the second locking member 800, the surface of the latch 830 that contacts the second guide surface 222 can also be an arc-shaped surface, and the arc-shaped surface of the latch 830 and the second guide surface 222 should fit together properly. When the second locking tongue 200 is inserted into the latch 830 of the second locking member 800, the second guide surface 222 can form a tighter fit with the latch 830 of the second locking member 800, thereby increasing friction and making the second locking tongue 200 more stable in the inserted state, less prone to loosening or dislodging, thus improving the safety and reliability of the locking mechanism.

[0091] In addition, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the locking mechanism further includes:

[0092] The bracket 300 is rotatably connected to the first locking tongue 100, and the bracket 300 is used to be mounted on the first locking member 700.

[0093] A first rotating shaft 400 is mounted on a bracket 300, and a first locking tongue 100 is rotatably mounted on the first rotating shaft 400. The central axis of the first rotating shaft 400 forms the rotation axis of the first locking tongue 100.

[0094] The second rotating shaft 500 is spaced apart from the first rotating shaft 400 and disposed on the first locking tongue 100. The second locking tongue 200 is rotatably disposed on the second rotating shaft 500, and the central axis of the second rotating shaft 500 forms the rotation axis of the second locking tongue 200.

[0095] The bracket 300 is set on the first locking component 700, providing an installation base and positioning reference for the entire locking mechanism, thereby fixing the locking mechanism at a specific position of the first locking component 700, ensuring the accurate relative position between the locking mechanism and the first locking component 700 and the subsequent cooperating second locking component 800, and ensuring the normal realization of the locking function.

[0096] The first rotating shaft 400 is mounted on the bracket 300 and passes through a rotating hole in the first connecting part 110, allowing the first locking bolt 100 to rotate around the central axis of the first rotating shaft 400, facilitating locking and unlocking operations. Similarly, the second rotating shaft 500 is mounted in a rotating hole in the limiting part 120 and passes through the second connecting part 210 of the second locking bolt 200, allowing the second locking bolt 200 to rotate around the central line of the second rotating shaft 500. The second locking bolt 200 and the first locking bolt 100 achieve relative rotation through different rotating shafts, realizing coordinated action between them. This results in a more rational spatial distribution of the various components of the locking mechanism, avoids interference between components, and improves the compactness of the structure.

[0097] It should be noted that the first rotating shaft 400 and the second rotating shaft 500 are spaced apart. Based on the distance between them, the rotation amplitude between the first locking tongue 100 and the second locking tongue 200 can be effectively controlled. A larger distance results in a smaller rotation amplitude for the first locking tongue 100 and a larger rotation amplitude for the second locking tongue 200. This makes it difficult to ensure sufficient space is provided for the second locking member 800 by the first locking tongue 100, limiting the additional downward stroke of the second locking member 800 and making it difficult to guarantee the depth to which the second locking tongue 200 inserts into the latch 830 of the second locking member 800. Conversely, a smaller distance results in a larger rotation amplitude for the first locking tongue 100 and a limited rotation amplitude for the second locking tongue 200. This may cause the second locking member 800 to be interfered with by the second locking tongue 200 before it can be fully depressed, as the second locking tongue 200 cannot continue to rotate. Therefore, the interval between the first rotating shaft 400 and the second rotating shaft 500 needs to be specifically set according to the dimensions of the first locking tongue 100 and the second locking tongue 200, as well as the required pressing stroke of the second locking member 800 and the dimensions of the latch 830. This application does not impose any restrictions on this.

[0098] Furthermore, refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the locking mechanism also includes:

[0099] The reset component 600 is disposed on the first locking tongue 100 corresponding to the first rotating shaft 400 and connected to the bracket component 300, so as to drive the first locking tongue 100 to reset after the second locking tongue 200 is inserted into the second locking component 800.

[0100] When the first locking tongue 100 is subjected to the downward pressure of the second locking member 800, and rotates away from the side where the second locking member 800 is located, the reset member 600 deforms and accumulates elastic potential energy. After the second locking tongue 200 is inserted into the latch 830 of the second locking member 800, the first locking tongue 100 and the second locking tongue 200 lose the downward pressure. At this time, the reset member 600 restores its deformation and releases elastic potential energy to drive the first locking tongue 100 to automatically reset. There is no need to manually adjust the first locking tongue 100 to the initial position, reducing additional operation steps.

[0101] After the first latch 100 is reset to the correct position, the limiting part 120 abuts against the insertion part 220 of the second latch 200. In this way, the first latch 100 can be held in the position by the reset member 600, and the second latch 200 can be kept in the inserted state, thereby enhancing the locking stability of the entire locking mechanism.

[0102] Specifically, the reset member 600 can be a torsion spring disposed on the first rotating shaft 400, with one side of the torsion spring abutting against the bracket member 300 and the other side abutting against the first connecting part 110 of the first locking tongue 100 and the operating member.

[0103] In other embodiments, a reset member 600 may be additionally provided on the second rotating shaft 500 to further improve the reset efficiency of the second locking tongue 200.

[0104] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this application embodiment also provides a handrail device, including a handrail body and a locking mechanism disposed on the handrail body;

[0105] The handrail body includes a handrail compartment and a handrail that is rotatably opened and closed on the handrail compartment. The handrail compartment forms a first locking element 700, and the handrail forms a second locking element 800.

[0106] The locking mechanism has been described in the above embodiments and will not be repeated here.

[0107] This application also provides a vehicle, including a vehicle body and a locking mechanism disposed on the vehicle body, or a vehicle body and a handrail device disposed on the vehicle body.

[0108] The handrail device and vehicle provided in this application embodiment, by setting a locking mechanism, includes a first locking tongue 100 and a second locking tongue 200 rotatably connected. The first locking tongue 100 is rotatably connected to a first locking member 700, and the second locking tongue 200 is inserted into a second locking member 800, thereby locking the first locking member 700 and the second locking member 800 together. During the locking process of the first locking member 700 and the second locking member 800, the second locking member 800 applies pressure to the second locking tongue 200, causing the second locking tongue 200 to rotate towards the side where the second locking member 800 is located under the pressure, and causing the first locking tongue 100 to rotate away from the side where the second locking member 800 is located under the pressure. Since the first locking tongue 100 and the second locking tongue 200 rotate in opposite directions at this time, the first locking tongue 100 rotates away from the second locking member 800, which allows the first locking tongue 100 to reserve space for the latching action between the second locking tongue 200 and the second locking member 800. This increases the downward stroke of the second locking member 800, making the downward pressure of the second locking member 800 more sufficient, and facilitating the alignment of the second locking tongue 200 with the corresponding latch 830 on the second locking member 800. Therefore, the second locking tongue 200 can be fully inserted into the second locking member 800 afterward, ensuring the subsequent insertion depth of the second locking tongue 200 and avoiding the phenomenon of "false latching". When the second locking member 800 is pressed into place, the first locking tongue 100 loses the pressure from the second locking member 800 and can rotate back to the side where the second locking member 800 is located. At this time, the rotation direction of the first locking tongue 100 is opposite to the previous rotation direction, and it drives the second locking tongue 200 to also rotate towards the second locking member 800 and insert into the second locking member 800. After the second locking tongue 200 is inserted into the second locking member 800, the first locking tongue 100, under the reset action, can make the second locking tongue 200 tend to insert into the second locking member 800 even deeper, so that the second locking tongue 200 can be stably and reliably maintained in the inserted state. Then the second locking member 800 can rise to make up for the reserved space and lock with the second locking tongue 200. This achieves a stable and reliable latch between the locking mechanism and the handrail, and prevents the locking mechanism from falling out and failing due to not being fully engaged in the latch position 830.

[0109] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0110] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0111] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0112] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A locking mechanism, characterized in that, include: The first locking tongue (100) is rotatably mounted on the first locking member (700); The second latch (200) is rotatably mounted on the first latch (100), and the rotation axis of the second latch (200) is parallel to the rotation axis of the first latch (100). The second locking tongue (200) is configured to rotate toward the side where the second locking member (800) is located when it is pressed by the second locking member (800), and drive the first locking tongue (100) to rotate away from the side where the second locking member (800) is located, so that the second locking tongue (200) is inserted into the second locking member (800). The first latch (100) is configured to rotate toward the side where the second lockable member (800) is located to reset after the second latch (200) is inserted into the second lockable member (800), and to keep the second latch (200) in the inserted state.

2. The locking mechanism according to claim 1, characterized in that, The first locking bolt (100) includes: The first connecting part (110) is used to rotatably connect with the first locking member (700); A limiting part (120) is disposed on the first connecting part (110), the limiting part (120) is connected to the second locking tongue (200), and the limiting part (120) is configured to abut against the second locking tongue (200) so that the second locking tongue (200) remains in the inserted state; An operating part (130) is disposed on the first connecting part (110) and located on the side of the limiting part (120) away from the second locking tongue (200). The operating part (130) is configured to drive the first locking tongue (100) to rotate away from the side where the second locking member (800) is located when subjected to an external force, and drive the second locking tongue (200) to disengage from the second locking member (800).

3. The locking mechanism according to claim 2, characterized in that, The limiting part (120) is inclined toward the side opposite to the operating part (130) and forms a surface contact engagement with the side of the second locking tongue (200) toward the limiting part (120).

4. The locking mechanism according to claim 1, characterized in that, The second locking tongue (200) includes: The second connecting part (210) is connected to the first locking tongue (100); An insertion part (220) is provided on one side of the second connecting part (210) to insert into or disengage the second locking member (800).

5. The locking mechanism according to claim 4, characterized in that, The insertion part (220) has a first guide surface (221) on the side away from the first locking tongue (100). The first guide surface (221) is configured to drive the second locking tongue (200) to rotate toward the side where the second locking member (800) is located when it abuts against the second locking member (800) and is subjected to pressure from the second locking member (800), and to move relative to the second locking member (800) away from the pressure direction until it disengages from the second locking member (800). The insertion part (220) has a second guide surface (222) on the side facing the first locking tongue (100). The second guide surface (222) is connected to the first guide surface (221). The second guide surface (222) is configured to move relative to the second locking member (800) after the first guide surface (221) disengages from the second locking member (800) to insert the second locking member (800) until it abuts against the second locking member (800) so that the second locking tongue (200) remains in the inserted state.

6. The locking mechanism according to claim 5, characterized in that, Both the first guide surface (221) and the second guide surface (222) are arc-shaped surfaces, and the concave sides of the arc-shaped surfaces are facing the first latch (100).

7. The locking mechanism according to any one of claims 1-6, characterized in that, Also includes: A bracket (300) is rotatably connected to the first locking tongue (100), and the bracket (300) is used to be mounted on the first locking member (700); A first rotating shaft (400) is disposed on the bracket (300), and a first locking tongue (100) is rotatably disposed on the first rotating shaft (400). The central axis of the first rotating shaft (400) forms the rotation axis of the first locking tongue (100). The second rotating shaft (500) is spaced apart from the first rotating shaft (400) on the first locking tongue (100), and the second locking tongue (200) is rotatably mounted on the second rotating shaft (500). The central axis of the second rotating shaft (500) forms the rotation axis of the second locking tongue (200).

8. The locking mechanism according to claim 7, characterized in that, Also includes: A reset member (600) is disposed on the first locking tongue (100) corresponding to the first rotating shaft (400) and connected to the bracket (300) so as to drive the first locking tongue (100) to reset after the second locking tongue (200) is inserted into the second locking member (800).

9. A handrail device, characterized in that, Includes a handrail body and a locking mechanism as described in any one of claims 1-8 disposed on the handrail body; The handrail body includes a handrail compartment and a handrail that is rotatably opened and closed on the handrail compartment. The handrail compartment forms the first locking element (700), and the handrail forms the second locking element (800).

10. A vehicle, characterized in that, It includes a vehicle body and a locking mechanism as described in any one of claims 1-8, or it includes a vehicle body and a handrail device as described in claim 9, which is provided on the vehicle body.

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