Locking mechanism, table plate assembly, seat assembly and vehicle

Abstract

The utility model provides a locking mechanism, a table plate assembly, a seat assembly and a vehicle. The locking mechanism comprises a locking assembly, the locking assembly has a locking state for locking the target object and an unlocking state for releasing the target object, and the locking assembly at least comprises an unlocking shifting block; at least part of the unlocking mechanism is movably arranged relative to the locking assembly, so that part of the unlocking mechanism is provided with a pre-unlocking position and an unlocking triggering position, the part of the unlocking mechanism is operated to be located at the pre-unlocking position after moving by a first distance relative to the locking assembly in the first direction, and the part of the unlocking mechanism is operated to be located at the unlocking triggering position after moving by a second distance relative to the locking assembly. After the unlocking mechanism with the operation part located at the pre-unlocking position moves by a second distance in the second direction opposite to the first direction, the unlocking mechanism is located at the unlocking triggering position, and in the process that part of the unlocking mechanism moves in the second direction, part of the unlocking mechanism drives the unlocking shifting block to rotate by a preset angle till the locking assembly is in the unlocking state.

Description

Technical Field

[0001] This utility model relates to the field of locking technology, specifically to a locking mechanism and table assembly, seat assembly, and vehicle. Background Technology

[0002] Locking mechanisms are widely used in daily life, from door locks and car locks to security locks on various mechanical devices. Their basic function is to ensure the fixation or release of an object through two states: locking and unlocking. Traditional locking mechanisms are mostly designed with two simple actions: "locking" and "unlocking." The locked state ensures the object's position is fixed, while the unlocked state allows the object to move freely. Taking a car tray table as an example, under normal circumstances, the tray table only has two states: locked and unlocked.

[0003] However, due to the overly simple unlocking operation, traditional locking mechanisms may pose safety risks in the event of accidental or unintentional unlocking. For example, children might accidentally unlock the device, leading to an accident. Furthermore, the tabletop may become inconvenient to use due to excessive weight or accidental unlocking. Currently, no effective solution has been proposed to address these technical issues. Utility Model Content

[0004] The main purpose of this utility model is to provide a locking mechanism, a table assembly, a seat assembly, and a vehicle to solve the problem that the overly simple locking mechanism in the prior art is prone to accidental unlocking.

[0005] To achieve the above objectives, according to one aspect of the present invention, a locking mechanism is provided, comprising: a locking component having a locked state for locking a target object and an unlocked state for releasing the target object, wherein the locking component includes at least an unlocking lever; and an unlocking mechanism, wherein at least a portion of the unlocking mechanism is movably disposed relative to the locking component such that the portion of the unlocking mechanism has a pre-unlocking position and an unlocking trigger position, wherein the operating portion of the unlocking mechanism moves a first distance relative to the locking component along a first direction and is positioned at the pre-unlocking position, and the operating portion of the unlocking mechanism, positioned at the pre-unlocking position, moves a second distance along a second direction opposite to the first direction and is positioned at the unlocking trigger position, wherein during the movement of the portion of the unlocking mechanism along the second direction, the portion of the unlocking mechanism drives the unlocking lever to rotate by a preset angle until the locking component is in the unlocked state.

[0006] The above embodiments of this application achieve the following beneficial effects: When unlocking the locking component, the unlocking mechanism requires two operations. After the first operation, the unlocking mechanism is in the pre-unlocked position, and after the second operation, it is in the unlock trigger position. This increases the complexity of the locking mechanism's locking and unlocking switching operations. The pre-unlocked position requires the user to perform a specific operation before unlocking, effectively preventing accidental unlocking caused by user mis-touch or external force. This solves the problem of accidental unlocking caused by overly simple locking mechanisms in the prior art, reducing losses and security risks. For example, in a push-button unlocking mechanism, if the lock is accidentally pressed, it may unlock. However, by adding a pre-unlocked position, i.e., the lock needs to be operated (e.g., rotated) to the pre-unlocked position before the unlocking operation, this dual verification mechanism can effectively prevent unintended unlocking and improve the security of the locking mechanism.

[0007] Furthermore, the unlocking mechanism includes a first unlocking component and a second unlocking component. The first unlocking component is rotatably configured, and during rotation, the first unlocking component is always in contact with the second unlocking component. The first unlocking component is operated to rotate a first angle along a third direction, so that at least a portion of the second unlocking component moves to a pre-unlocking position along the first direction. The first unlocking component is operated to rotate a second angle along a fourth direction opposite to the third direction, so that at least a portion of the second unlocking component moves to an unlock trigger position along the second direction. During the movement of at least a portion of the second unlocking component along the second direction, a portion of the second unlocking component drives the unlocking lever to rotate a preset angle until the locking component is in the unlocked state.

[0008] The above-described optional embodiments of this application achieve the following beneficial effects: the locking component can be unlocked by rotating the first unlocking component. Furthermore, the first unlocking component rotates a first angle to place the unlocking mechanism in a pre-unlocking position, during which the locking component remains locked. Upon further rotation, the first unlocking component rotates a second angle to place the unlocking mechanism in an unlock trigger position, during which the locking component gradually switches to the unlocked state. This embodiment only requires rotating the first unlocking component to unlock, making the unlocking operation simple.

[0009] Furthermore, the second unlocking component includes an unlocking lever and a sliding handle. The unlocking lever is movably configured relative to the locking component, with the first direction being the axial upward direction of the unlocking lever and the second direction being the axial downward direction of the unlocking lever. The sliding handle is movably configured relative to the locking component and is provided with a limit lever. The unlocking lever moves a first distance relative to the locking component and the sliding handle along the first direction and is located at the pre-unlocking position. The unlocking lever moves a second distance relative to the locking component along the second direction and is located at the unlocking trigger position. During the movement of the unlocking lever along the second direction, a portion of the unlocking lever is always in contact with the limit lever. The unlocking lever pushes the limit lever and the sliding handle to move synchronously along the second direction. The sliding handle drives the unlocking lever to rotate a preset angle until the locking component is in the unlocked state.

[0010] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: when the unlocking rod moves along the first direction, the locking component and the sliding handle remain relatively stationary; when the unlocking rod moves along the second direction, the unlocking rod pushes the limit lever and the sliding handle to move synchronously; the movement of the sliding handle drives the unlocking block to rotate, thereby unlocking the locking component. Here, the first direction and the second direction are both axial directions of the unlocking rod. That is to say, the unlocking of the locking component can be achieved by the reciprocating motion of the unlocking rod in the axial direction. This setting simplifies the unlocking operation. In combination with the aforementioned embodiments, the entire locking mechanism can be unlocked by adjusting the movement direction of the unlocking rod by rotating the first unlocking component, making the unlocking operation of the locking mechanism more effortless and stable.

[0011] Furthermore, after the unlocking lever, which is located in the unlock trigger position, moves a third distance along the second direction, the second unlocking component is in the fully unlocked position. When the second unlocking component is in the fully unlocked position, the unlocking lever can move relative to the sliding handle and the sliding handle along the second direction.

[0012] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the unlocking lever in the fully unlocked position can continue to move relative to the sliding handle in the second direction. That is to say, at this time, the unlocking lever can drive the first unlocking component connected to it to continue to move axially downward, reducing the size of the locking mechanism in the axial direction of the unlocking lever, which can be used to realize the retraction and storage action of the locking mechanism.

[0013] Furthermore, the limiting lever includes at least a stop block, which is movably connected to the sliding handle so that the stop block has a default position in the direction of movement of the unlocking lever and a clearance position away from the direction of movement of the unlocking lever. During the movement of the unlocking lever in the first direction, the stop block switches from the default position to the clearance position so that the unlocking lever moves relative to the sliding handle in the first direction.

[0014] The above-described optional embodiments of this application can achieve the following beneficial effects: Before the unlocking lever moves along the first direction, the stop block is in a default position. When the unlocking lever moves along the first direction, the stop block switches from the default position to an avoidance position. At this time, the unlocking lever can move relative to the sliding handle along the first direction, thereby reaching the pre-unlocking position. The stop block's position switching mechanism enables the unlocking lever to automatically avoid obstacles when moving along the first direction.

[0015] Furthermore, the limit lever is rotatably connected to the sliding handle to switch the stop block between the default position and the avoidance position.

[0016] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the rotary connection simplifies the complexity of the mechanism design, while ensuring the precise matching of each component.

[0017] Furthermore, when the unlocking lever is in the pre-unlock position, the stop block switches to the default position, and the unlocking lever is located on the side of the stop block closer to the unlocking lever and contacts the stop block.

[0018] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: when in the pre-unlocked position, the stop block switches to the default position, that is, at this time the stop block is located on the moving path of the unlocking rod. The stop block can play a role in stopping the unlocking rod, so that when the unlocking rod moves axially downward, the sliding handle can be moved synchronously by pushing the stop block.

[0019] Furthermore, during the process of the unlocking lever moving a second distance in the second direction, the stop block is always in the default position, the unlocking lever is always located on the side of the stop block closer to the unlocking lever and abuts against the stop block, the unlocking lever pushes the limit lever to move in the second direction, thereby causing the sliding handle to move synchronously.

[0020] The above-described optional embodiments of this application can achieve the following beneficial effects: the stop block is always in the default position, ensuring the correct guidance of the unlocking lever, ensuring the reliability of the unlocking lever, and avoiding instability during the movement process.

[0021] Furthermore, when the unlock lever is in the unlock trigger position, the unlock lever is located on the side of the stop block closer to the unlock lever and abuts against the stop block.

[0022] The above-described optional embodiments of this application can achieve the following beneficial effects: when in the unlock trigger position, the unlock lever is located on the side of the stop block near the unlock lever and abuts against the stop block, which can maintain the unlock state of the unlock component and ensure that the target object is removed from the unlock component.

[0023] Furthermore, during the process of the unlock lever moving from the unlock trigger position to the fully unlocked position, the stop block switches from the default position to the avoidance position, so that the unlock lever moves relative to the sliding handle in the second direction. When the unlock lever is in the fully unlocked position, the stop block is in the default position, and the unlock lever is located on the side of the stop block away from the unlock lever.

[0024] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: by switching the position of the stop block, the unlocking lever moves to the side of the stop block away from the unlocking lever. At this time, the unlocking lever can have a degree of freedom of movement on this side, for example, it can continue to move down or shift left and right. The unlocking lever in the fully unlocked position moves relatively independently from the sliding handle, so that the movement of the unlocking lever will not interfere with the state of the unlocking component. The unlocking lever can achieve free position change.

[0025] Furthermore, the sliding handle has a movable hole, and the second unlocking component also includes a fixed base and a fixed rod. The sliding handle is slidably connected to the fixed base so that the sliding handle is movably set relative to the locking component. The fixed rod is connected to the fixed base and extends through the movable hole to the side where the limit lever is located. The fixed rod is located on the first side of the stop block. When the unlocking lever is in the pre-unlocking position, the stop block and the fixed rod are set at a distance along the second direction. When the unlocking lever is in the unlocking trigger position, the stop block contacts the fixed rod. During the process of the unlocking lever moving from the unlocking trigger position to the fully unlocked position, the fixed rod pushes the stop block to rotate from the default position to the avoidance position.

[0026] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the fixed rod can rotate and push the stop block during the process of the unlocking rod moving from the unlock trigger position to the fully unlocked position, so that the stop block automatically switches from the default position to the avoidance position. At the same time, the fixed rod has a limiting function on the fixed base. After the fixed rod rotates the stop block from the default position to the avoidance position, the unlocking rod moves to the fully unlocked position, the unlocking rod disengages from the abutment relationship with the stop block, and the unlocking rod no longer drives the sliding handle to move synchronously. That is, the movement process of the sliding handle ends, so that the sliding handle cannot continue to move downward, avoiding the problem of damage to the unlocking block caused by excessive movement of the sliding handle continuing to press the unlocking lever.

[0027] Furthermore, the second unlocking component also includes a first elastic element, the first end of which is connected to the limit lever, and the second end of which is connected to the fixed base. When the stop block is in the default position, the first elastic element is in a first natural state. During the process of the stop block rotating from the default position to the avoidance position, the first elastic element is in a first compressed state.

[0028] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the first elastic element can generate a force to push the limit lever from the avoidance position back to the initial position when it is in the first compressed state, so as to ensure that after the unlocking lever moves from the first side of the limit lever to the second side of the limit lever, or after the unlocking lever moves from the second side of the limit lever to the first side of the limit lever, the limit lever automatically rotates from the avoidance position back to the initial position, so as to ensure that the limit lever normally plays the role of stopping the position of the unlocking lever in the next step.

[0029] Furthermore, the second unlocking component also includes a second elastic element. The first end of the second elastic element is connected to the fixed base, and the second end of the second elastic element is connected to the sliding handle. When the unlocking lever is in the pre-unlocking position, the second elastic element is in a second natural state. During the movement of the sliding handle in the second direction, the second elastic element is in a second compressed state.

[0030] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: when the second elastic member is in the second compressed state, it can generate a force to push the sliding handle back to its original position in the first direction, so that after the sliding handle completes the function of pressing down to unlock the unlocking block, it returns to the natural contact state before pressing down to unlock the unlocking block, ensuring that the subsequent unlocking cooperation between the locking component and the unlocking mechanism can be carried out normally.

[0031] Furthermore, the first unlocking component includes a support arm, one end of which is provided with a driving part. The support arm is rotatable, and during the rotation of the support arm, the driving part is always in contact with the unlocking rod. The radial dimension of the contact position between the driving part and the unlocking rod can be varied so that the rotation of the support arm drives the unlocking rod to move along the axial direction of the unlocking rod.

[0032] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the radial dimension change of the contact position between the drive part and the unlocking rod can drive the unlocking rod to move along the axial direction of the unlocking rod, thereby realizing the switching of the unlocking mechanism between the pre-unlocking position and the unlocking trigger position. This setting can realize unlocking at the same time as rotating the support arm, making the unlocking operation simpler and faster.

[0033] Furthermore, the drive unit includes at least a cam. During the rotation of the support arm, the cam is always in contact with the unlocking lever. The radial dimension of the contact position between the cam and the unlocking lever can be set to vary so that the rotation of the support arm drives the unlocking lever to move along the axial direction of the unlocking lever.

[0034] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the cam mechanism can achieve precise motion control, ensure the smoothness and repeatability of the unlocking process, and the cam can be designed into different shapes, such as conical or inclined, according to actual needs, to adapt to different unlocking stroke and force requirements, thereby enhancing the versatility of the mechanism.

[0035] Furthermore, the locking mechanism also includes: a base, the base including a base housing and a sliding base disposed within the base housing, the sliding base being movably disposed along a first direction or a second direction; wherein, the locking component is disposed within the base housing and connected to the base housing, the first unlocking component, the target object, and the unlocking rod are respectively connected to the sliding base, wherein the sliding base can drive the target object and the first unlocking component to move synchronously along the first direction, so that the target object cooperates with the locking component until the locking component is in the locked state.

[0036] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the sliding base can drive the first unlocking component, the target object, and the unlocking rod connected thereto to move synchronously. When performing locking operations, the first unlocking component can be directly operated to drive the sliding base to move along the first direction, thereby driving the target object and the unlocking rod to move. During the movement, the target object can cooperate with the locking component fixed in the base housing, so that the locking component locks the target object, and the unlocking rod moves to a position close to the sliding handle and the limit lever, completing the preparation for the subsequent unlocking action.

[0037] According to another specific embodiment of this application, a tabletop assembly is provided, the tabletop assembly including a locking mechanism, the locking mechanism being the aforementioned locking mechanism, the target object including the tabletop and a bolt, the locking component having a locked state of locking the bolt, and the locking component having an unlocked state of releasing the bolt, wherein the tabletop is connected to the unlocking mechanism, and the rotation of the unlocking mechanism in the operating part can drive the tabletop to rotate synchronously.

[0038] The above-described optional embodiments of this application can achieve the following beneficial effects: By setting the target objects as the tabletop and the bolt, during unlocking, only the tabletop and the part of the unlocking mechanism connected to it need to be rotated to unlock the bolt. It should be understood that the tabletop and the bolt are in a synchronized state; that is, after the locking component locks the bolt, the tabletop is also locked and cannot be displaced, but it can rotate with part of the unlocking mechanism. After the bolt is unlocked, the tabletop is also unlocked, and at this time, it can be displaced. Using the tabletop assembly in this embodiment, when using the tabletop, the user needs to rotate it twice to unlock it, avoiding accidental locking of the tabletop due to excessive weight or user error, thus improving the user experience.

[0039] According to another aspect of the present invention, a seat assembly is provided, the seat assembly including a table assembly, the table assembly being the table assembly described above.

[0040] The above embodiments of this application can achieve the following beneficial effects: by applying the above-mentioned table assembly to the seat assembly, users can use the table for office work, study and other activities when using the seat, and the table is less likely to be accidentally locked during use, thus improving the user experience.

[0041] According to another aspect of the present invention, a vehicle is provided having a seat assembly, the seat assembly being the aforementioned seat assembly.

[0042] The above embodiments of this application can achieve the following beneficial effects: By setting up the seat assembly in the above embodiments, it is more convenient for passengers in the vehicle to use the seat table. For example, when placing tablets, books, computers, food, etc. on the seat table, the seat table is locked and cannot be moved, which effectively improves the support stability of the table. After use, the user can rotate the seat table to retract it without having to operate an additional unlocking tool, simplifying the user's unlocking operation process and improving the user's riding experience. Attached Figure Description

[0043] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0044] Figure 1 A schematic diagram of the structure of a first embodiment of the locking mechanism according to the present invention is shown;

[0045] Figure 2 An exploded structural schematic diagram of an embodiment of the locking assembly of the locking mechanism according to the present invention is shown;

[0046] Figure 3 A schematic diagram of the structure of a first embodiment of the locking mechanism according to the present invention in the pre-unlocked position is shown;

[0047] Figure 4 A schematic diagram of an embodiment of the locking mechanism according to the present invention moving from a pre-unlocking position to an unlocking trigger position is shown;

[0048] Figure 5 A schematic diagram of an embodiment of the locking mechanism according to the present invention in the unlocking trigger position is shown;

[0049] Figure 6 A schematic diagram showing the state switching of an embodiment of the unlocking mechanism of the locking mechanism according to the present invention is shown;

[0050] Figure 7 A schematic diagram of the structure of a second embodiment of the locking mechanism according to the present invention is shown;

[0051] Figure 8 A schematic diagram of a second embodiment of the locking mechanism according to the present invention in the pre-unlocked position is shown;

[0052] Figure 9 A schematic diagram of a third embodiment of the locking mechanism according to the present invention in the pre-unlocked position is shown;

[0053] Figure 10 A schematic diagram of the structure of an embodiment of the locking component of the locking mechanism according to the present invention is shown;

[0054] Figure 11 A schematic diagram of the fourth embodiment of the locking mechanism according to the present invention in the pre-unlocked position is shown;

[0055] Figure 12 A schematic diagram of the fifth embodiment of the locking mechanism according to the present invention in the pre-unlocked position is shown.

[0056] The above figures include the following reference numerals:

[0057] 100. Locking assembly; 110. First housing; 180. Second housing; 120. Unlocking lever; 130. Locking tongue; 140. Unlocking lever return spring; 150. Locking tongue return spring; 160. Rotating shaft; 170. Gap elimination block;

[0058] 200. Second unlocking component; 210. Fixed base; 211. Fixed rod; 220. Sliding handle; 221. Movable hole; 230. Limit lever; 231. Stop block; 2310. Acting surface; 232. Inclined surface; 240. First elastic element; 250. Second elastic element;

[0059] 300. Unlock lever;

[0060] 400. Locking bolt;

[0061] 500. First unlocking component; 501. Support arm; 502. Cam;

[0062] 610. Base housing; 620. Sliding base;

[0063] 700. Tabletop. Detailed Implementation

[0064] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0065] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0066] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0067] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0068] Combination Figures 1 to 12 As shown, according to a specific embodiment of this application, a locking mechanism is provided.

[0069] The locking mechanism includes a locking component 100 and an unlocking mechanism. The locking component 100 has a locked state for locking a target object and an unlocked state for releasing the target object. The locking component 100 includes at least an unlocking lever 120. At least a portion of the unlocking mechanism is movably disposed relative to the locking component 100 so that the portion of the unlocking mechanism has a pre-unlocking position and an unlocking triggering position. The operating portion of the unlocking mechanism moves a first distance relative to the locking component 100 along a first direction and is then positioned in the pre-unlocking position. After the operating portion of the unlocking mechanism in the pre-unlocking position moves a second distance along a second direction opposite to the first direction, the unlocking mechanism is then positioned in the unlocking triggering position. During the movement of the portion of the unlocking mechanism along the second direction, the portion of the unlocking mechanism drives the unlocking lever 120 to rotate a preset angle until the locking component 100 is in the unlocked state.

[0070] The above embodiments of this application can achieve the following beneficial effects: When the unlocking mechanism unlocks the locking component 100, it needs to perform two operations. After the first operation, the unlocking mechanism is in the pre-unlock position, and after the second operation, the unlocking mechanism is in the unlock trigger position. This increases the complexity of the locking mechanism's locking and unlocking switching operations. The pre-unlock position requires the user to perform a specific operation before unlocking, effectively preventing accidental unlocking caused by user mis-touch or external force. This solves the problem that the overly simple locking mechanism in the prior art is prone to accidental unlocking, reducing losses and safety risks. For example, in a press-type unlocking tabletop mechanism, if the tabletop is accidentally pressed, it may unlock. However, by adding a pre-unlock position, that is, the tabletop needs to be operated (e.g., rotated) to the pre-unlock position before the unlocking operation is performed, this dual verification mechanism can effectively prevent unintended unlocking caused by excessive tabletop load or user mis-operation, improving the safety of the tabletop mechanism.

[0071] In one exemplary embodiment of this application, Figure 1 This diagram shows the structure of the locking mechanism when it is in the locked state. Figure 3 A schematic diagram of the locking mechanism in the pre-unlocked position is shown. Figure 5 This diagram shows the structure of the locking mechanism in the unlock trigger position. Figure 4This diagram illustrates a structural schematic of the locking mechanism at an intermediate position during its movement from the pre-unlock position to the unlock trigger position. The first direction is direction F1 as shown in the diagram, and the second direction is direction F2 as shown. Specifically, the first direction is vertically upward, and the second direction is vertically downward. It should be understood that the unlocking mechanism operated during the transition to the pre-unlock position may differ from that during the transition to the unlock trigger position. For example, during the first movement to the pre-unlock position, part of the unlocking mechanism moves, while another part remains relatively stationary with respect to the locking assembly 100. During the second movement from the pre-unlock position to the unlock trigger position, the part of the unlocking mechanism that moved during the first movement moves along the second direction, and the other part of the unlocking mechanism that remained relatively stationary with respect to the locking assembly 100 during the first movement follows suit, causing the other part of the unlocking mechanism to press down on the unlocking lever 120 of the locking assembly 100. The unlocking lever 120 rotates, gradually unlocking the target object. The part of the unlocking mechanism that needs to move in both movements can be considered the driving part of the unlocking mechanism. The other part that moves only in the second movement can be considered the operating part of the unlocking mechanism, that is, the part that directly acts on the unlocking lever 120 of the locking assembly 100 to achieve the unlocking action. The driving part of the unlocking mechanism moves to the pre-unlock position in the first movement and drives the operating part to move in the second movement. The movement of the operating part can drive the unlocking lever 120 to rotate.

[0072] Specifically, when the locking mechanism in this embodiment is applied to the tabletop locking, the seat and tabletop are connected. The tabletop remains locked during the first movement, facilitating user use. A second movement is initiated during subsequent retraction to unlock the tabletop. The first and second movements can be designed to fit the tabletop's usage scenario. For example, after the tabletop pops out, it is in a vertical position and locked. The first movement involves part of the unlocking mechanism rotating with the tabletop to a horizontal position, allowing normal user use. When the tabletop needs to be retracted, the second movement is initiated, rotating the tabletop and part of the unlocking mechanism back to a vertical position, unlocking the tabletop. Upon returning to a vertical position, the tabletop has completed its unlocking action, allowing for subsequent retraction, such as vertically retracting the tabletop into the storage space. This embodiment effectively meets the requirements of various usage scenarios and is easy to operate.

[0073] It should be noted that both movements can be achieved simply by operating the unlocking mechanism. Depending on actual needs, the operation of the locking mechanism during both movements can be set to conform to user habits, such as a rotation operation in opposite directions or a horizontal extension operation. Furthermore, the aforementioned locking mechanism can also be applied to unlocking other devices; for example, it can be applied to seat cushions, and the unlocking process for seat cushions is similar to that for tabletops.

[0074] In this embodiment, the structure of the locking component 100 is as follows: Figure 2 As shown, the unlocking lever 120 is used to control the state switching of the locking component 100. Pressing the unlocking lever 120 down causes it to rotate to the lower left by a preset angle, thus unlocking the device.

[0075] Furthermore, the unlocking mechanism includes a first unlocking component 500 and a second unlocking component 200. The first unlocking component 500 is rotatably configured, and during rotation, the first unlocking component 500 is always in contact with the second unlocking component 200. The first unlocking component 500 is operated to rotate a first angle in a third direction, so that at least a portion of the second unlocking component 200 moves to a pre-unlocking position in the first direction. The first unlocking component 500 is operated to rotate a second angle in a fourth direction opposite to the third direction, so that at least a portion of the second unlocking component 200 moves to an unlock trigger position in the second direction. During the movement of at least a portion of the second unlocking component 200 in the second direction, a portion of the second unlocking component 200 drives the unlocking lever 120 to rotate a preset angle until the locking component 100 is in the unlocked state.

[0076] The above-described optional embodiments of this application achieve the following beneficial effects: The locking component 100 can be unlocked by rotating the first unlocking component 500. Furthermore, the first unlocking component 500 rotates a first angle to place the unlocking mechanism in a pre-unlocking position, during which the locking component 100 remains locked. Upon further rotation, the first unlocking component 500 rotates a second angle to place the unlocking mechanism in an unlock trigger position, during which the locking component 100 gradually switches to the unlocked state. This embodiment only requires rotating the first unlocking component 500 to unlock, making the unlocking operation simple.

[0077] Combination Figure 6 As shown, the third direction is direction F3 as shown in the figure, and the fourth direction is direction F4 as shown in the figure.

[0078] like Figure 7 , Figure 8 , Figure 9 As shown, the first unlocking component 500 can be connected to the user's objects, such as the seat back, seat cushion, seat table, etc.

[0079] Further, the second unlocking component 200 includes an unlocking lever 300 and a sliding handle 220. The unlocking lever 300 is movably disposed relative to the locking component 100, with the first direction being the axial upward direction of the unlocking lever 300 and the second direction being the axial downward direction of the unlocking lever 300. The sliding handle 220 is movably disposed relative to the locking component 100, and a limit lever 230 is disposed on the sliding handle 220. The unlocking lever 300 moves a first distance relative to the locking component 100 and the sliding handle 220 along the first direction and is located at the pre-unlocking position. The unlocking lever 300 moves a second distance relative to the locking component 100 along the second direction and is located at the unlocking trigger position. During the movement of the unlocking lever 300 along the second direction, a portion of the unlocking lever 300 is always in contact with the limit lever 230. The unlocking lever 300 pushes the limit lever 230 and the sliding handle 220 to move synchronously along the second direction. The sliding handle 220 drives the unlocking block 120 to rotate a preset angle until the locking component 100 is in the unlocked state.

[0080] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: When the unlocking rod 300 moves along the first direction, the locking component 100 and the sliding handle 220 remain relatively stationary. When the unlocking rod 300 moves along the second direction, the unlocking rod 300 pushes the limit lever 230 and the sliding handle 220 to move synchronously. The movement of the sliding handle 220 drives the unlocking block 120 to rotate, thereby unlocking the locking component 100. The first direction and the second direction are both axial directions of the unlocking rod 300. That is to say, the unlocking of the locking component 100 can be achieved by the reciprocating movement of the unlocking rod 300 in the axial direction. This setting simplifies the unlocking operation. In combination with the aforementioned embodiments, the entire locking mechanism can be unlocked by adjusting the movement direction of the unlocking rod 300 by rotating the first unlocking component 500, making the unlocking operation of the locking mechanism more effortless and stable.

[0081] In one exemplary embodiment of this application, the sliding handle 220 has an overlapping structure that engages with the unlocking lever 120. The overlapping structure overlaps above the unlocking lever 120. When the sliding handle 220 moves in the second direction, the overlapping structure can drive the unlocking lever 120 downward, thereby causing the unlocking lever 120 to rotate and unlocking the locking component 100.

[0082] Furthermore, after the unlocking lever 300, which is located in the unlock trigger position, moves a third distance along the second direction, the second unlocking component 200 is in the fully unlocked position. When the second unlocking component 200 is in the fully unlocked position, the unlocking lever 300 can move relative to the sliding handle 220 along the second direction.

[0083] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the unlocking lever 300 in the fully unlocked position can continue to move relative to the sliding handle 220 in the second direction. That is to say, at this time, the unlocking lever 300 can drive the first unlocking component 500 connected to it to continue to move axially downward, reducing the size of the locking mechanism in the axial direction of the unlocking lever 300, which can be used to realize the retraction and storage action of the locking mechanism.

[0084] Furthermore, the limiting lever 230 includes at least a stop block 231. The limiting lever 230 is movably connected to the sliding handle 220 so that the stop block 231 has a default position in the moving direction of the unlocking lever 300 and a clearance position away from the moving direction of the unlocking lever 300. During the movement of the unlocking lever 300 along the first direction, the stop block 231 switches from the default position to the clearance position so that the unlocking lever 300 moves relative to the sliding handle 220 along the first direction.

[0085] The above-described optional embodiments of this application can achieve the following beneficial effects: Before the unlocking lever 300 moves along the first direction, the stop block 231 is in the default position. When the unlocking lever 300 moves along the first direction, the stop block 231 switches from the default position to the avoidance position. At this time, the unlocking lever 300 can move relative to the sliding handle 220 along the first direction, thereby reaching the pre-unlocking position. The position switching mechanism of the stop block 231 enables the unlocking lever 300 to automatically avoid obstacles when moving along the first direction.

[0086] Furthermore, the limiting lever 230 is rotatably connected to the sliding handle 220 to switch the stop block 231 between a default position and an avoidance position. In other embodiments, the limiting lever 230 and the sliding handle 220 may also be movably arranged in the horizontal direction. For example, the limiting lever 230 is connected to the sliding handle 220 through an elastic member extending in the horizontal direction, and the movement direction of the stop block 231 is guided by a guide surface provided at the end of the stop block 231.

[0087] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the rotary connection simplifies the complexity of the mechanism design, while ensuring the precise matching of each component.

[0088] Specifically, in an exemplary embodiment of this application, the pivot of the limiting lever 230 extends along the thickness direction of the sliding handle 220, and the limiting lever 230 extends along the length direction of the sliding handle 220. The first end of the limiting lever 230 away from the unlocking block 120 is rotatably connected to the sliding handle 220, and the second end of the limiting lever 230 near the unlocking block 120 is provided with a stop block 231. When the limiting lever 230 rotates around the pivot, the stop block 231 can be switched between the default position and the avoidance position. The stop block 231 has an inclined surface 232 facing the first end of the limit lever 230 and an action surface 2310 facing the unlocking lever 120. The unlocking lever 300 moves forward in the first direction and is positioned close to the inclined surface 232. When the unlocking lever 300 moves in the first direction, it contacts the inclined surface 232 and pushes the stop block 231 to rotate during the movement. Under the push of the unlocking lever 300, the stop block 231 rotates from the default position to the avoidance position.

[0089] Furthermore, when the unlocking lever 300 is in the pre-unlocking position, the stop block 231 switches to the default position, and the unlocking lever 300 is located on the side of the stop block 231 near the unlocking lever 120 and contacts the stop block 231.

[0090] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: when in the pre-unlock position, the stop block 231 switches to the default position, that is, at this time the stop block 231 is located on the moving path of the unlocking rod 300. The stop block 231 can stop the unlocking rod 300, so that when the unlocking rod 300 moves axially downward, the sliding handle 220 can be moved synchronously by pushing the stop block 231.

[0091] It should be understood that the stop block 231 in this application is mainly used to realize the linkage control of the unlocking lever 300 and the sliding handle 220. That is, when the unlocking lever 300 moves along the first direction, the unlocking lever 300 and the sliding handle 220 are set independently. When the unlocking lever 300 moves a second distance along the second direction, the unlocking lever 300 and the sliding handle 220 move synchronously, thereby realizing unlocking. The stop block 231 in this application can also be replaced by other structures that can achieve the same function. For example, a connecting mechanism associated with the pre-unlocking position can be set. This connecting mechanism can connect the unlocking lever 300 and the sliding handle 220 when the unlocking lever 300 moves to the pre-unlocking position, so that the unlocking lever 300 and the sliding handle 220 move synchronously. After the unlocking lever 300 moves to the unlocking trigger position, the unlocking lever 300 and the sliding handle 220 are separated, so that the unlocking lever 300 and the sliding handle 220 return to the independent movement state.

[0092] Furthermore, during the process of the unlocking lever 300 moving a second distance in the second direction, the stop block 231 is always in the default position, and the unlocking lever 300 is always located on the side of the stop block 231 close to the unlocking lever 120 and abuts against the stop block 231. The unlocking lever 300 pushes the limit lever 230 to move in the second direction, thereby driving the sliding handle 220 to move synchronously.

[0093] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the stop block 231 is always in the default position, ensuring the correct guidance of the unlocking rod 300, ensuring the reliability of the unlocking rod 300, and avoiding instability during the movement process.

[0094] Furthermore, when the unlocking lever 300 is in the unlocking trigger position, the unlocking lever 300 is located on the side of the stop block 231 near the unlocking paddle 120 and abuts against the stop block 231.

[0095] The above-described optional embodiments of this application can achieve the following beneficial effects: when in the unlock trigger position, the unlock lever 300 is located on the side of the stop block 231 near the unlock lever 120 and abuts against the stop block 231, thus maintaining the unlocked state of the locking component 100 and ensuring that the target object is dislodged from the locking component 100.

[0096] Furthermore, during the process of the unlock lever 300 moving from the unlock trigger position to the fully unlocked position, the stop block 231 switches from the default position to the avoidance position, so that the unlock lever 300 moves relative to the sliding handle 220 in the second direction. When the unlock lever 300 is in the fully unlocked position, the stop block 231 is in the default position, and the unlock lever 300 is located on the side of the stop block 231 away from the unlock lever 120.

[0097] The above-described optional embodiments of this application can achieve the following beneficial effects: by switching the position of the stop block 231, the unlocking lever 300 moves to the side of the stop block 231 away from the unlocking lever 120. At this time, the unlocking lever 300 can have a degree of freedom of movement on this side, for example, it can continue to move down or shift left and right. The unlocking lever 300 in the fully unlocked position moves relatively independently from the sliding handle 220, so that the movement of the unlocking lever 300 at this time will not interfere with the state of the locking component 100, and the unlocking lever 300 can achieve free position change.

[0098] Furthermore, the sliding handle 220 is provided with an active hole 221. The second unlocking component 200 also includes a fixed base 210 and a fixed rod 211. The sliding handle 220 is slidably connected to the fixed base 210 so that the sliding handle 220 is movably disposed relative to the locking component 100. The fixed rod 211 is connected to the fixed base 210 and extends through the active hole 221 to the side where the limit lever 230 is located. The fixed rod 211 is located on the first side of the stop block 231. When the unlocking lever 300 is in the pre-unlocking position, the stop block 231 and the fixed rod 211 are disposed at a distance along the second direction. When the unlocking lever 300 is in the unlocking trigger position, the stop block 231 contacts the fixed rod 211. During the process of the unlocking lever 300 moving from the unlocking trigger position to the fully unlocked position, the fixed rod 211 pushes the stop block 231 to rotate from the default position to the avoidance position.

[0099] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: The setting of the fixing rod 211 can realize the rotation and push of the stop block 231 during the process of the unlocking rod 300 moving from the unlocking trigger position to the fully unlocked position, so that the stop block 231 automatically switches from the default position to the avoidance position. At the same time, the fixing rod 211 has a limiting function on the fixed base 210. After the fixing rod 211 rotates the stop block 231 from the default position to the avoidance position, the unlocking rod 300 moves to the fully unlocked position, the unlocking rod 300 disengages from the abutment relationship with the stop block 231, and the unlocking rod 300 no longer drives the sliding handle 220 to move synchronously. That is, the movement process of the sliding handle 220 is terminated. This prevents the sliding handle 220 from continuing to move downward, avoiding the problem of damage to the unlocking lever 120 caused by excessive movement of the sliding handle 220 continuing to press the unlocking lever 120.

[0100] In one exemplary embodiment of this application, the fixed base 210 has two slide grooves extending along the length direction of the sliding handle 220. The two slide grooves are respectively located at both ends of the width direction of the sliding handle 220. The sliding handle 220 extends into the slide grooves and can move relative to the fixed base 210 along the slide grooves.

[0101] like Figure 3 , Figure 4 As shown, the movable hole 221 can be a strip-shaped hole, an elliptical hole, or an oblong hole. The end of the fixed rod 211 extends to the side where the limit lever 230 is located, and the end face of the sliding handle 220 facing the fixed rod 211 is set to be arc-shaped so that the fixed rod 211 can rotate more smoothly.

[0102] Furthermore, the second unlocking component 200 also includes a first elastic element 240. The first end of the first elastic element 240 is connected to the limit lever 230, and the second end of the first elastic element 240 is connected to the fixed base 210. When the stop block 231 is in the default position, the first elastic element 240 is in the first natural state. During the process of the stop block 231 rotating from the default position to the avoidance position, the first elastic element 240 is in the first compressed state.

[0103] The above-described optional embodiments of this application can achieve the following beneficial effects: the first elastic member 240 can generate a force to push the limiting lever 230 from the avoidance position back to the initial position when it is in the first compressed state, ensuring that after the unlocking lever 300 moves from the first side of the limiting lever 230 to the second side of the limiting lever 230, or after the unlocking lever 300 moves from the second side of the limiting lever 230 to the first side of the limiting lever 230, the limiting lever 230 automatically rotates from the avoidance position back to the initial position, ensuring that the limiting lever 230 normally plays its role in stopping the position of the unlocking lever 300 in the next step.

[0104] Furthermore, the second unlocking component 200 also includes a second elastic element 250. The first end of the second elastic element 250 is connected to the fixed base 210, and the second end of the second elastic element 250 is connected to the sliding handle 220. When the unlocking rod 300 is in the pre-unlocking position, the second elastic element 250 is in the second natural state. During the movement of the sliding handle 220 in the second direction, the second elastic element 250 is in the second compressed state.

[0105] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the second elastic member 250 can generate a force to push the sliding handle 220 back to its original position in the first direction when it is in the second compressed state, so that after the sliding handle 220 completes the function of pressing down to unlock the unlocking block 120, it returns to the natural contact state before pressing down to unlock the unlocking block 120, ensuring that the subsequent unlocking cooperation between the locking component 100 and the unlocking mechanism can be carried out normally.

[0106] like Figure 1 As shown, both the first elastic element 240 and the second elastic element 250 are springs.

[0107] Furthermore, the first unlocking component 500 includes a support arm 501, one end of which is provided with a driving part. The support arm 501 is rotatably configured, and during the rotation of the support arm 501, the driving part is always in contact with the unlocking rod 300. The radial dimension of the contact position between the driving part and the unlocking rod 300 can be varied so that the rotation of the support arm 501 drives the unlocking rod 300 to move along the axial direction of the unlocking rod 300.

[0108] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the radial dimension change of the contact position between the driving part and the unlocking rod 300 can drive the unlocking rod 300 to move along the axial direction of the unlocking rod 300, thereby realizing the switching of the unlocking mechanism between the pre-unlocking position and the unlocking triggering position. This setting can realize unlocking at the same time as rotating the support arm 501, making the unlocking operation simpler and faster.

[0109] In one exemplary embodiment of this application, the driving part is a variable diameter slide, and one end of the unlocking rod 300 is designed with a roller or slider that matches the inner contour of the variable diameter slide. When the unlocking rod 300 slides along the variable diameter slide, the size change of the variable diameter slide will directly affect the axial displacement of the unlocking rod 300, thereby controlling the contact between the unlocking rod 300 and the limit lever 230. Specifically, when the support arm 501 rotates by a first angle in a third direction, the unlocking lever 300 moves to the pre-unlocking position in the first direction. At this time, the change in the profile of the variable diameter slide is small and insufficient to drive the unlocking lever 300 to move in the vertical direction. When the support arm 501 continues to rotate in the fourth direction, the unlocking lever 300 moves to the unlocking trigger position in the second direction. At this time, the change in the size of the variable diameter slide causes the roller or slider of the unlocking lever 300 to move downward in the axial direction, thereby pressing down the limit lever 230 and triggering the unlocking process. During the process of the unlocking lever 300 moving from the unlocking trigger position to the fully unlocked position, the internal profile design of the variable diameter slide allows the unlocking lever 300 to continue to move in the second direction. At the same time, at a certain point, the change in the size of the variable diameter slide causes the unlocking lever 300 to disengage from the limit lever 230, allowing the unlocking lever 300 to continue to move independently.

[0110] Preferably, the drive unit includes at least a cam 502. During the rotation of the support arm 501, the cam 502 is always in contact with the unlocking rod 300. The radial dimension of the contact position between the cam 502 and the unlocking rod 300 can be varied so that the rotation of the support arm 501 drives the unlocking rod 300 to move along the axial direction of the unlocking rod 300.

[0111] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the cam mechanism can achieve precise motion control, ensure the smoothness and repeatability of the unlocking process, and the cam can be designed into different shapes, such as conical or inclined, according to actual needs, to adapt to different unlocking stroke and force requirements, thereby enhancing the versatility of the mechanism.

[0112] like Figure 6As shown, in an exemplary embodiment of this application, the support arm 501 can be rotated to position 500-1 and position 500-2. The included angle between position 500-1 and position 500-2 is close to 90°, which corresponds to the vertical and horizontal states of the support arm 501 in actual application. For example, when the support arm 501 is in position 500-1, the support arm 501 is in a horizontal state, and when the support arm 501 is in position 500-2, the support arm 501 is in a vertical state. It should be noted that the first direction is the upward axial direction of the unlocking lever 300, and the second direction is the downward axial direction of the unlocking lever 300. Specifically, when the support arm 501 is in position 500-1, the unlocking lever 300 moves upward axially to position 300-1. Correspondingly, the unlocking lever 300 moves to the pre-unlocking position on the second side of the limit lever 230. At this time, the sliding handle 220 does not act on the unlocking block 120. When the support arm 501 rotates to position 500-2, the unlocking lever 300 moves downward axially to position 300-2. The unlocking lever 300 drives the abutting limit lever 230 to move in the second direction, which in turn drives the sliding handle 220 to move in the second direction, so that the sliding handle 220 drives the unlocking block 120 to rotate at a preset angle, and the locking assembly 100 begins to unlock.

[0113] Furthermore, the locking mechanism also includes a base, which includes a base housing 610 and a sliding base 620 disposed within the base housing 610. The sliding base 620 is movably disposed along a first direction or a second direction. The locking component 100 is disposed within the base housing 610 and connected to the base housing 610. The first unlocking component 500, the target object, and the unlocking rod 300 are respectively connected to the sliding base 620. The sliding base 620 can drive the target object and the first unlocking component 500 to move synchronously along the first direction, so that the target object cooperates with the locking component 100 until the locking component 100 is in a locked state.

[0114] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the sliding base 620 can drive the first unlocking component 500, the target object, and the unlocking rod 300 connected thereto to move synchronously. When performing locking operations, the first unlocking component 500 can be directly operated to drive the sliding base 620 to move along the first direction, thereby driving the target object and the unlocking rod 300 to move. During the movement, the target object can cooperate with the locking component 100 fixed in the base housing 610, so that the locking component 100 locks the target object. The unlocking rod 300 moves to a position close to the sliding handle 220 and the limit lever 230, completing the preparation for the subsequent unlocking action.

[0115] like Figure 7 , Figure 8 , Figure 9As shown, the first unlocking component 500 can extend at least partially beyond the base housing 610. The first unlocking component 500 can be used to connect to a user's object, such as a tabletop or seat cushion. The first unlocking component 500 has a use position and a storage position. The first unlocking component 500 can be moved in a first direction and a second direction by the sliding base 620, thereby switching between the use position and the storage position. For example, if the first unlocking component 500 is currently in the storage position, the sliding base 620 drives the first unlocking component 500 to move in the first direction, i.e., the axial upward direction of the unlocking lever 300, causing the first unlocking component 500 to move from the storage position to the use position. During this process, the target object and the locking component 100 are locked together, so that the first unlocking component 500 in the use position is locked to the user object. When locked, the switching between the use position and the storage position is not possible; the movement to make the first unlocking component 500 in the use position... After using the object, rotate the first unlocking component 500, and the unlocking lever 300 switches to the pre-unlocking position. During this process, the locking component 100 remains locked, and the object follows the first unlocking component 500 to a horizontal position for easy use. When it is necessary to retract the object, rotate the first unlocking component 500 again, and the object follows the first unlocking component 500 to a vertical position. The unlocking lever 300 switches to the unlock trigger position, and the locking component 100 switches to the unlocked state to release the object. Continue to press the unlocking lever 300 downwards, and the unlocking lever 300 moves the object, the first unlocking component 500, and the object downwards until the first unlocking component 500 returns to the storage position.

[0116] In one exemplary embodiment of this application, the sliding base 620 is a sliding block with a receiving space, within which the first unlocking component 500, the target object, and the unlocking lever 300 are all disposed. The first unlocking component 500 is connected to the sliding block; movement of the sliding block causes the first unlocking component 500, the target object, and the unlocking lever 300 to move synchronously. Figure 11 and Figure 12 Partial structure inside the base housing 610 is shown (the sliding base 620 is not fully shown; only the portion of the sliding base 620 extending outside the base housing 610 is shown). The fixed base 210 and the locking assembly 100 are both disposed inside the base housing 610 and connected to the base housing 610. The first unlocking assembly 500 is located outside the base housing 610.

[0117] Optionally, a slide rail structure may be provided inside the base housing 610 to facilitate the sliding base 620 to slide along the slide rail. Alternatively, a drive mechanism for driving the sliding base 620 to slide may be provided inside the base housing 610, such as a drive motor. The rotation of the output shaft of the drive motor can drive the sliding base 620 to slide up and down. Alternatively, a pop-out mechanism may be provided inside the base housing 610. The elastic force of the pop-out mechanism can pop the sliding base 620 upward until the locking component 100 locks the target object.

[0118] According to another specific embodiment of this application, a tabletop assembly is provided, the tabletop assembly including a locking mechanism, the locking mechanism being the aforementioned locking mechanism, the target object including a tabletop 700 and a bolt 400, the locking component 100 having a locked state of locking the bolt 400, and the locking component 100 having an unlocked state of releasing the bolt 400, wherein the tabletop 700 is connected to the unlocking mechanism, and the rotation of the unlocking mechanism in the operating part can drive the tabletop 700 to rotate synchronously.

[0119] The above-described optional embodiments of this application can achieve the following beneficial effects: By setting the target objects as the tabletop 700 and the bolt 400, during unlocking, only the tabletop 700 and the part of the unlocking mechanism connected to it need to be rotated to unlock the bolt 400. It should be understood that the tabletop 700 and the bolt 400 are in a synchronized state; that is, after the locking assembly 100 locks the bolt 400, the tabletop 700 is also locked and cannot be displaced, but it can rotate with part of the unlocking mechanism. After the bolt 400 is unlocked, the tabletop 700 is also unlocked, and at this time, it can be displaced. Using the tabletop assembly in this embodiment, when using the tabletop 700, the user needs to rotate it twice to unlock the tabletop 700, avoiding accidental locking of the tabletop due to excessive weight or user misoperation, thus improving the user experience.

[0120] This application also provides a preferred embodiment of a table assembly. This table assembly can realize different locking states of a lock with the bolt in the same position, which can conveniently meet the needs of usage scenarios such as car seat tray tables.

[0121] Specifically, the table assembly includes a table 700 and a locking mechanism. The locking mechanism includes a locking component 100, a second unlocking component 200, an unlocking lever 300, a bolt 400, and a first unlocking component 500. The first unlocking component 500 includes a support arm 501 and a cam 502 disposed at the end of the support arm 501.

[0122] The locking component 100 and the second unlocking component 200 are locked onto the base housing 610, and the unlocking rod 300, the bolt 400 and the first unlocking component 500 are located on the sliding base 620 that moves relative to the base housing 610.

[0123] like Figure 2 and Figure 10 As shown, the locking assembly 100 includes a first housing 110, a second housing 180, an unlocking lever 120, a locking tongue 130, an unlocking lever return spring 140, a locking tongue return spring 150, a rotating shaft 160, and a gap elimination block 170.

[0124] like Figure 1 As shown, the second unlocking component 200 includes a fixed base 210, a sliding handle 220, a limit lever 230, a first elastic element 240, and a second elastic element 250. The first elastic element 240 is a reset spring, and the second elastic element 250 is a lifting spring.

[0125] The working process of the locking mechanism in this embodiment is as follows:

[0126] 1. The tabletop 700 pops up vertically. After the sliding base 620 moves upward, the bolt 400 moves upward with the sliding base 620 and strikes the bolt tongue 130. The locking assembly 100 enters the locking state, locking the bolt 400 (see [link]). Figure 1 ).

[0127] 2. Subsequently, the support arm 501 is folded over. As the support arm 501 rotates from position 500-2 to position 500-1, the unlocking lever 300 moves upward from position 300-2 to position 300-1. The unlocking lever 300 actuates the limit lever 230 and continues to move upward above the limit lever 230. At this time, the locking assembly 100 remains locked, and the unlocking lever 300 approaches the action surface 2310 of the limit lever 230 (see [link]). Figure 3 ).

[0128] 3. When the tabletop 700 is ready to be retracted, fold it down, rotate the support arm 501 back to its original position (i.e., position 500-2), and press down the unlocking lever 300 to position 300-2. The unlocking lever 300 presses down the limiting lever 230, which abuts against the action surface 2310. The limiting lever 230 drives the sliding handle 220 downward. At this time, the sliding handle 220 will drive the unlocking block 120 of the locking assembly 100, keeping the locking assembly 100 in the unlocked state (see [link]). Figure 4 ).

[0129] 4. When the locking assembly 100 is in the unlocked state, pressing the sliding base 620 will continue to push the unlocking lever 300. After a certain stroke, the inclined surface 232 of the limit lever 230 contacts the fixed base 210, forcing the limit lever 230 to rotate. The fixed lever 211 drives the limit lever 230 to move upwards from left to right, disengaging it from the unlocking lever 300. When the limit lever 230 and the unlocking lever 300 are no longer aligned, the unlocking lever 300 will pass the limit lever 230 and move downwards (see [link]). Figure 5 ).

[0130] 5. At the same time, since the limit lever 230 is not constrained in the height direction, the sliding handle 220 will move upward under the action of the second elastic element 250; at the same time, the limit lever 230 will also be reset to the default position under the action of the first elastic element 240, the locking component 100 is in the unlocked state, and the bolt 400 leaves the locking range of the locking component 100.

[0131] In this embodiment, the locking mechanism utilizes cam 502 to drive the unlocking lever 300 downward when the tabletop 700 is folded, thereby pressing down the limit lever 230, which in turn drives the sliding handle 220 downward, ultimately unlocking the unlocking block 120 of the locking assembly 100. This achieves the switching between the locking and unlocking structures, resulting in high convenience in actual use. This solution resolves the linkage change between the two unlocking states, avoiding the need for separate operation and greatly improving operational convenience.

[0132] According to another specific embodiment of this application, a seat assembly is provided, which includes a table assembly, the table assembly being the same as the table assembly in the above embodiment.

[0133] The above embodiments of this application can achieve the following beneficial effects: by applying the table assembly in the above embodiments to the seat assembly, when using the seat, the user can use the table for office work, study and other activities, and the table is less likely to be accidentally locked during use, thus improving the user experience.

[0134] It should be noted that the seats in this embodiment may include seats of various means of transportation (such as cars, airplanes, trains, etc.), as well as office furniture and lounge chairs that need to provide table angle adjustment functions.

[0135] According to another specific embodiment of this application, a vehicle is provided, the vehicle having a seat assembly, the seat assembly being the seat assembly in the above embodiment.

[0136] The above embodiments of this application can achieve the following beneficial effects: By setting up the seat assembly in the above embodiments, it is more convenient for passengers in the vehicle to use the seat table. For example, when placing tablets, books, computers, food, etc. on the seat table, the seat table is locked and cannot be moved, which effectively improves the support stability of the table. After use, the user can rotate the seat table to retract it without having to operate an additional unlocking tool, simplifying the user's unlocking operation process and improving the user's riding experience.

[0137] The vehicles in this embodiment include, but are not limited to, long-distance buses, commercial vehicles, sedans, and SUVs, and are especially suitable for occasions where the table angle needs to be adjusted in a personalized way.

[0138] In this application, "multiple" refers to two or more.

[0139] In this application, unless otherwise expressly defined, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can specifically understand the meaning of the above terms in this application.

[0140] The terms “first,” “second,” and “third” (if any) in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0141] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0142] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0143] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0144] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0145] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lock mechanism, characterized in that The application relates to a lock assembly (100) for locking a target object, and a release mechanism for releasing the target object. The lock assembly (100) comprises a release block (120). The release mechanism comprises a first release assembly (500) and a second release assembly (200).

2. The lockup mechanism according to claim 1, characterized by The first release assembly (500) is rotatable and always in contact with the second release assembly (200) during rotation.

3. The lockup mechanism according to claim 2, characterized by The second release assembly (200) comprises a release rod (300) and a sliding handle (220). The release rod (300) is movable relative to the lock assembly (100) along a first direction to a pre-release position and along a second direction opposite to the first direction to a release trigger position. The sliding handle (220) is movable relative to the lock assembly (100) along the first direction to the pre-release position and along the second direction to the release trigger position. The release rod (300) is movable relative to the lock assembly (100) along the first direction to the pre-release position and along the second direction to the release trigger position. The sliding handle (220) is movable relative to the lock assembly (100) along the first direction to the pre-release position and along the second direction to the release trigger position. Part of the unlocking lever (300) is in contact with the limiting lever (230) during movement of the unlocking lever (300) in the second direction, the unlocking lever (300) pushes the limiting lever (230) and the sliding handle (220) to move synchronously in the second direction, the sliding handle (220) drives the unlocking block (120) to rotate by the preset angle, until the locking assembly (100) is in the unlocking state.

4. The lockup mechanism according to claim 3, characterized by After the unlocking lever (300) in the unlocking trigger position moves by a third distance in the second direction, the second unlocking assembly (200) is in a fully unlocked position, when the second unlocking assembly (200) is in the fully unlocked position, the unlocking lever (300) can move relative to the sliding handle (220) in the second direction.

5. The locking mechanism of claim 4, wherein, The limiting lever (230) at least comprises a stop block (231), the limiting lever (230) is movably connected with the sliding handle (220), so that the stop block (231) has a default position in the movement direction of the unlocking lever (300), and a avoiding position away from the movement direction of the unlocking lever (300), During movement of the unlocking lever (300) in the first direction, the stop block (231) switches from the default position to the avoiding position, so that the unlocking lever (300) moves relative to the sliding handle (220) in the first direction.

6. The locking mechanism of claim 5, wherein, The limiting lever (230) is rotationally connected with the sliding handle (220), so that the stop block (231) switches between the default position and the avoiding position.

7. The locking mechanism according to claim 5 or 6, characterized in that When the unlocking lever (300) is in the pre-unlocking position, the stop block (231) switches to the default position, the unlocking lever (300) is located on the side of the stop block (231) close to the unlocking block (120) and in contact with the stop block (231).

8. The locking mechanism of claim 7, wherein, During movement of the unlocking lever (300) in the second direction by the second distance, the stop block (231) is always in the default position, the unlocking lever (300) is always located on the side of the stop block (231) close to the unlocking block (120) and in contact with the stop block (231), the unlocking lever (300) pushes the limiting lever (230) to move in the second direction, thereby driving the sliding handle (220) to move synchronously.

9. The locking mechanism of claim 8, wherein, When the unlocking lever (300) is in the unlocking trigger position, the unlocking lever (300) is located on the side of the stop block (231) close to the unlocking block (120) and in contact with the stop block (231).

10. The locking mechanism of claim 5 or 6, wherein, During the movement of the unlocking lever (300) from the unlocking trigger position to the fully unlocking position, the stop block (231) is switched from the default position to the avoiding position to enable the unlocking lever (300) to move relative to the sliding handle (220) in the second direction, and when the unlocking lever (300) is in the fully unlocking position, the stop block (231) is in the default position, and the unlocking lever (300) is located on the side of the stop block (231) away from the unlocking knob (120).

11. The lockup mechanism according to claim 5, characterized by The sliding handle (220) is provided with a movable hole (221), and the second unlocking assembly (200) further comprises: A fixed base (210), the sliding handle (220) is in sliding connection with the fixed base (210), so that the sliding handle (220) is movably arranged relative to the locking assembly (100); A fixed rod (211), the fixed rod (211) is connected with the fixed base (210) and extends to the side where the limiting lever (230) is located through the movable hole (221), and the fixed rod (211) is located on the first side of the stop block (231); Wherein, when the unlocking lever (300) is in the pre-unlocking position, the stop block (231) is arranged with a distance between the fixed rod (211) in the second direction, when the unlocking lever (300) is in the unlocking trigger position, the stop block (231) is in contact with the fixed rod (211), and during the movement of the unlocking lever (300) from the unlocking trigger position to the fully unlocking position, the fixed rod (211) pushes the stop block (231) to rotate from the default position to the avoiding position.

12. The locking mechanism of claim 11, wherein, The second unlocking assembly (200) further comprises: A first elastic member (240), the first end of the first elastic member (240) is connected with the limiting lever (230), and the second end of the first elastic member (240) is connected with the fixed base (210), when the stop block (231) is in the default position, the first elastic member (240) is in the first natural state, and during the rotation of the stop block (231) from the default position to the avoiding position, the first elastic member (240) is in the first compressed state.

13. The locking mechanism according to claim 11 or 12, characterized in that The second unlocking assembly (200) further comprises: A second elastic member (250), the first end of the second elastic member (250) is connected with the fixed base (210), and the second end of the second elastic member (250) is connected with the sliding handle (220), when the unlocking lever (300) is in the pre-unlocking position, the second elastic member (250) is in the second natural state, and during the movement of the sliding handle (220) in the second direction, the second elastic member (250) is in the second compressed state.

14. The lockup mechanism according to claim 3, characterized by The first unlocking assembly (500) comprises a support arm (501), one end of the support arm (501) is provided with a driving part, the support arm (501) is rotatably arranged, and the driving part is always in contact with the unlocking rod (300) during rotation of the support arm (501), wherein the radial dimension of the contact position of the driving part and the unlocking rod (300) is variably arranged, so that the rotation of the support arm (501) drives the unlocking rod (300) to move along the axial direction of the unlocking rod (300).

15. The locking mechanism of claim 14, wherein, The driving part at least comprises a cam (502), the cam (502) is always in contact with the unlocking rod (300) during rotation of the support arm (501), wherein the radial dimension of the contact position of the cam (502) and the unlocking rod (300) is variably arranged, so that the rotation of the support arm (501) drives the unlocking rod (300) to move along the axial direction of the unlocking rod (300).

16. The locking mechanism of claim 3, wherein, The locking mechanism further comprises: The base comprises a base shell (610) and a sliding base (620) arranged in the base shell (610), and the sliding base (620) is movably arranged along the first direction or the second direction; The locking assembly (100) is arranged in the base shell (610) and connected with the base shell (610), the first unlocking assembly (500), the target object and the unlocking rod (300) are respectively connected with the sliding base (620), wherein the sliding base (620) can drive the target object and the first unlocking assembly (500) to move synchronously along the first direction, so that the target object cooperates with the locking assembly (100) until the locking assembly (100) is in the locking state.

17. A table board assembly characterized by, The table plate assembly comprises the locking mechanism, the locking mechanism is any one of the locking mechanisms in claims 1-16, the target object comprises a table plate (700) and a lock bolt (400), the locking assembly (100) has the locking state of locking the lock bolt (400), and the locking assembly (100) has the unlocking state of releasing the lock bolt (400), wherein the table plate (700) is connected with the unlocking mechanism, and rotation of the unlocking mechanism of the operating part can drive the table plate (700) to rotate synchronously.

18. A seating assembly characterized by, The seat assembly comprises the table plate assembly, and the table plate assembly is the table plate assembly in claim 17.

19. A vehicle characterized by comprising: The vehicle has the seat assembly, and the seat assembly is the seat assembly in claim 18. The vehicle has the seat assembly, and the seat assembly is the seat assembly in claim 18.

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