Unlocking switch and seat

Abstract

The embodiment of the application relates to the technical field of seats, and discloses an unlocking switch and a seat. A base has a mounting groove, the base is used for being arranged on a seat back, a button is slidably arranged in the mounting groove in a first direction, a restoring member is connected to the base at one end and connected to the button at the other end, the restoring member is used for driving the button to return to an initial position after being pressed, a limiting mechanism comprises a movable piece and a fixed piece, the fixed piece is arranged on the outer side wall of the base, the movable piece is located on the outer side of the base and connected to the button in the mounting groove, the movable piece slides along the first direction with the button, and the fixed piece is used for abutting against the movable piece when the button returns to the initial position. The unlocking switch provided by the application has small space occupation and is not prone to damage.

Description

Technical Field

[0001] This application relates to the field of seat technology, and more particularly to an unlocking switch and a seat. Background Technology

[0002] The rear seats of a vehicle generally consist of a seat and a backrest, which can be folded down relative to each other to expand the rear passenger space.

[0003] The seat may also include an unlocking switch and a locking mechanism, which are connected in a control manner. When the unlocking switch is not pulled, the locking mechanism can fix the seat and backrest in the unfolded position. When the unlocking switch is pulled outward, the locking mechanism can engage the unfolded position of the seat, allowing the backrest to flip towards the seat to achieve seat folding.

[0004] However, the unlocking switches in the aforementioned technologies are large in size, which takes up a lot of space and reduces the space utilization of the seat. In addition, the unlocking switches in these technologies are easy to damage and have poor durability. Utility Model Content

[0005] In view of this, the present application provides an unlocking switch and a seat to solve the technical problems in the above-mentioned related technologies, such as the unlocking switch being large in size and occupying a large amount of functional space, resulting in reduced space utilization on the seat, and the unlocking switch being easy to damage and having poor durability.

[0006] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0007] A first aspect of this application provides an unlocking switch for unlocking the backrest of a seat, comprising:

[0008] A base having a mounting groove, the base being used for mounting on the back of the seat;

[0009] The button is slidably disposed within the mounting slot along the first direction;

[0010] The response component has one end connected to the base and the other end connected to the button. The response component is used to drive the button to return to its initial position after it has been pressed.

[0011] The limiting mechanism includes a movable part and a fixed part. The fixed part is disposed on the outer side wall of the base. The movable part is located on the outer side of the base and connected to the button in the mounting groove. The movable part slides along the first direction with the button. The fixed part is used to abut against the movable part when the button returns to the initial position.

[0012] This application provides an unlocking switch. This technical solution replaces the traditional handle structure with a press-type unlocking mechanism, achieving a compact layout through the sliding cooperation of the base and button. The base, as the supporting body, forms the button's moving track through the mounting groove, allowing the button to move only in a single direction. This adapts to the curved shape of the seat back while reducing lateral space occupation. The elastic connection design of the return component ensures the button automatically resets after being pressed, avoiding manual back-pushing. The limiting mechanism uses a combination of an externally arranged movable and fixed component. When the button resets, mechanical abutment achieves precise limiting, preventing the button from dislodging and avoiding occupying internal space in the mounting groove. The linkage design between the movable component and the button extends the movement trajectory to the outside of the base, forming a double limiting mechanism that ensures structural stability and precise control of the movement stroke. The externally arranged fixed and movable components form a spatially staggered layout, effectively separating functional areas and maintaining a simple linear movement space within the internal mounting groove.

[0013] In some embodiments of this application, the side wall of the base is provided with a first guide groove extending in a first direction;

[0014] The unlocking switch also includes a connecting structure, one end of which is connected to the movable part, and the other end passes through the first guide groove and is connected to the button in the mounting groove.

[0015] And / or,

[0016] The movable component is also used to connect to the cable.

[0017] In some embodiments of this application, the active element includes:

[0018] The main body is connected to the connecting structure;

[0019] An abutment arm is provided at one end of the main body near the fixing member, and the abutment arm is used to abut against the fixing member.

[0020] In some embodiments of this application, the fastener includes two spaced-apart abutment blocks;

[0021] The abutting arm includes two arms, each abutting arm corresponds to one abutting block, and the abutting arm abuts against the abutting block.

[0022] In some embodiments of this application, a guide structure is also included;

[0023] The guide structure is connected to the button, and the inner wall of the mounting groove has a second guide groove extending along the first direction, with the guide structure located within the second guide groove.

[0024] In some embodiments of this application, guide posts are also included;

[0025] The guide post is disposed on the side of the bottom wall of the button facing the mounting groove, and the guide post extends along the first direction;

[0026] The bottom wall of the mounting groove has a through hole that mates with the guide post, and the guide post is inserted into the through hole.

[0027] In some embodiments of this application, the guide post includes two posts, which are spaced apart on the surface of the button facing the through hole;

[0028] The through hole includes two holes, and each guide post is inserted into one of the through holes.

[0029] In some embodiments of this application, a guide tube is also included;

[0030] The guide tube extends along a first direction, and the opening of the guide tube is in communication with the through hole;

[0031] The guide post is inserted into the guide tube and the through hole.

[0032] In some embodiments of this application, the responding element is a compression spring;

[0033] The compression spring is sleeved on the outer periphery of the guide tube and the guide post;

[0034] One end of the compression spring is connected to the inner bottom wall of the mounting groove, and the other end is connected to the button.

[0035] A second aspect of this application provides a seat, which includes a foldable seat and backrest, a locking structure, and an unlocking switch as described above;

[0036] The locking structure is used to control the folding state of the seat and the backrest. The unlocking switch is connected to the locking structure. The locking structure is used to cause the backrest to flip and fold towards the seat when the unlocking switch is activated. Attached Figure Description

[0037] Figure 1 This application provides a schematic diagram of the structure of an unlocking switch from two perspectives.

[0038] Figure 2 An exploded view of an unlocking switch provided in an embodiment of this application;

[0039] Figure 3 An exploded view of an unlocking switch provided in an embodiment of this application;

[0040] Figure 4 for Figure 1Cross-sectional view at point AA;

[0041] Figure 5 A schematic diagram of the structure of an unlocking switch provided in this application, showing the moving part and the fixed part abutting when the button is in the initial position;

[0042] Figure 6 A schematic diagram of the structure of an unlocking switch provided in this application embodiment when the button is pressed and the moving part and the fixed part are not in contact;

[0043] Figure 7 This is a structural schematic diagram of a seat provided in an embodiment of this application.

[0044] Figure label:

[0045] 10. Unlock switch; 20. Backrest; 30. Cable;

[0046] 100. Base;

[0047] 110. Mounting slot; 120. First guide slot; 130. Through hole;

[0048] 200. Button;

[0049] 300. Reply document;

[0050] 400. Limiting mechanism;

[0051] 410. Moving parts; 420. Fasteners;

[0052] 411. Main body; 412. Abutting arm; 421. Abutting block;

[0053] 500, guide post;

[0054] 600. Guide tube. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0056] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0057] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0058] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0059] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0060] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0061] The unlocking switches in the aforementioned technologies are relatively large, occupying significant functional space and reducing the space utilization of the seat. Furthermore, these unlocking switches are prone to damage and have poor durability. This is because existing unlocking switches use a lever-type mechanism. Unlocking with a lever-type unlocking switch requires pulling outwards, and because a hand-operated lever is needed, the lever is relatively large, taking up considerable space. Additionally, the lever has poor conformability to the seat surface, easily protruding in areas such as curved surfaces, affecting the appearance. Moreover, the lever-type unlocking switch has a relatively thin structure at the lever area, making it prone to damage and having poor durability.

[0062] To address the aforementioned issues, this application provides an unlocking switch and a seat. This technical solution replaces the traditional handle structure with a press-type unlocking mechanism, employing a sliding fit between the base and the button to achieve a compact layout. The base, acting as the supporting structure, forms the button's movement track through the mounting groove, ensuring the button moves only in a single direction. This adapts to the curved shape of the seat back while reducing lateral space occupation. The elastic connection design of the return component allows the button to automatically reset after being pressed, eliminating the need for manual repositioning. The limiting mechanism uses a combination of an externally arranged movable and fixed component, achieving precise limiting through mechanical abutment when the button resets, preventing the button from dislodging and avoiding occupying internal space in the mounting groove. The linkage design between the movable component and the button extends the movement trajectory to the outside of the base, forming a double limiting mechanism that ensures structural stability and precise control of the movement stroke. The externally arranged fixed and movable components form a spatially staggered layout, effectively separating functional areas and maintaining a clean, linear movement space within the internal mounting groove.

[0063] The unlocking switch and seat provided in this application are described below with reference to the accompanying drawings and specific embodiments.

[0064] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an unlocking switch 10 for unlocking a seat back 20, which may include a base 100, a button 200, a return element 300, and a limiting mechanism 400.

[0065] The base 100 has a mounting groove 110 and is used to be mounted on the seat back 20. The base 100 is the basic component that supports the movement of the button 200 and can be manufactured by injection molding. Its mounting groove 110 forms a sliding track for the button 200.

[0066] Reference Figure 2 and Figure 3 Button 200 along the first direction (e.g.) Figure 2 The button 200 is slidably disposed within the mounting groove 110 in the X direction. The button 200 refers to the contact component that performs the pressing operation; it can be formed by metal stamping or plastic molding, and its surface can be adapted to the curved shape of the backrest 20.

[0067] One end of the return component 300 is connected to the base 100, and the other end is connected to the button 200. The return component 300 is used to drive the button 200 to return to its initial position after being pressed. The elastic reset component refers to an elastic element that provides the restoring force, such as a coil spring or an elastic rubber body, with its two ends fixed to the inner wall of the base 100 and the bottom surface of the button 200, respectively.

[0068] Reference Figure 1The limiting mechanism 400 may include a movable member 410 and a fixed member 420. The fixed member 420 is disposed on the outer wall of the base 100. The movable member 410 is located on the outer side of the base 100 and connected to the button 200 in the mounting groove 110. The movable member 410 slides along the first direction with the button 200. The fixed member 420 is used to abut against the movable member 410 when the button 200 returns to its initial position. The movable member 410 refers to a limiting component mechanically connected to the button 200, such as a metal stamping part or a plastic connecting rod, which extends to the outer side of the base 100 to form a motion trajectory extension. The fixed member 420 refers to a limiting structure disposed on the outer wall of the base 100, such as a welded metal block or an integrally formed plastic boss, which forms a contact stop surface with the movable member 410.

[0069] Specifically, when the operator presses button 200, button 200 slides along the axial direction of mounting groove 110, compressing the elastic reset component. The linkage mechanism drives the movable part 410 to move synchronously, at which point the fixed part 420 separates from the movable part 410. After releasing the pressure, the elastic reset component pushes button 200 back to its initial position, and the movable part 410 moves in the opposite direction until it contacts the fixed part 420, forming a mechanical limit. During this process, the linear motion trajectory of button 200 is strictly limited to a single direction, avoiding the swing space requirements of traditional structures. The contact surface between the movable part 410 and the fixed part 420 is located on the outside of the base 100, which neither affects the movement space of the internal components nor compromises reset accuracy through external limiting. The elastic potential energy stored in the compressed state of the elastic reset component is converted into the reset force of button 200, achieving the automatic return function.

[0070] This application provides an unlocking switch 10. This technical solution replaces the traditional handle structure with a press-type unlocking mechanism, achieving a compact layout through the sliding engagement of the base 100 and the button 200. The base 100, as the supporting body, forms the moving track of the button 200 via the mounting groove 110, allowing the button 200 to move only in one direction. This adapts to the curved shape of the seat back 20 while reducing lateral space occupation. The elastic connection design of the return member 300 ensures that the button 200 automatically resets after being pressed, avoiding manual reset. The limiting mechanism 400 uses an outerly arranged movable member 410 cooperating with a fixed member 420. When the button 200 resets, it achieves precise limiting through mechanical abutment, preventing the button 200 from dislodging and avoiding occupying internal space in the mounting groove 110. The linkage design between the movable member 410 and the button 200 extends the movement trajectory to the outside of the base 100, forming a double limiting mechanism that ensures structural stability and achieves precise control of the movement stroke. The fixed part 420 and the movable part 410 on the outside form a spatially staggered layout, effectively separating the functional areas and keeping the internal mounting groove 110 in a simple linear movement space.

[0071] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the unlocking switch 10 may further include a guide structure (not shown in the figure), which is connected to the button 200. The inner wall of the mounting groove 110 has a second guide groove (not shown in the figure) extending in a first direction, and the guide structure is located in the second guide groove.

[0072] This technical solution achieves precise control over the movement trajectory of the button 200 by setting a cooperative relationship between the guide structure and the second guide groove. The guide structure is directly connected to the button 200, thus forcibly constraining the movement path of the button 200 within the range of motion of the guide structure. The specific structure of the second guide groove extending along the first direction on the inner wall of the mounting groove 110 complements the shape of the guide structure, and this spatial cooperation effectively restricts the degree of freedom of the button 200 in directions other than the first direction.

[0073] When button 200 is pressed by an external force, the sliding trajectory of the guide structure within the second guide groove is strictly limited to linear motion. This mechanical constraint fundamentally eliminates the possibility of displacement of button 200 in the lateral or rotational directions. The contact surface between the guide structure and the second guide groove forms a stable sliding pair structure. The frictional resistance generated by the physical contact of the sliding pair can effectively suppress the minor vibrations of button 200 caused by inertia or assembly gaps during movement.

[0074] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the unlocking switch 10 may further include a guide post 500, which is disposed on the side of the button 200 facing the bottom wall of the mounting groove 110 and extends in a first direction. The bottom wall of the mounting groove 110 has a through hole 130 that mates with the guide post 500, and the guide post 500 is inserted into the through hole 130.

[0075] This technical solution achieves precise control of the movement trajectory of the button 200 by setting the cooperation relationship between the guide post 500 and the through hole 130. The guide post 500 is set at the bottom of the button 200 and extends along the first direction, so that the button 200 can only move along the axial direction of the post during the pressing process, thus eliminating the possibility of lateral displacement from a physical structure perspective. The through hole 130 opened in the bottom wall of the mounting groove 110 forms a clearance fit with the guide post 500, which allows the post to slide freely in the hole, while the constraint effect of the hole wall on the circumferential direction of the post further restricts the degree of freedom of movement of the button 200.

[0076] This direct insertion method between the guide post 500 and the through hole 130 eliminates the need for a complex transmission mechanism. Single-degree-of-freedom motion control can be achieved solely through the geometric fit of the two parts, simplifying the structure while ensuring operational reliability.

[0077] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the guide post 500 may include two guide posts 500, which are spaced apart on the surface of the button 200 facing the through hole 130. The through hole 130 may include two through holes, with each guide post 500 correspondingly inserted into one through hole 130.

[0078] This technical solution uses two spaced-apart guide posts 500, each inserted into a corresponding through hole 130, to form a dual-point synchronous guiding structure. The spaced arrangement of the two guide posts 500 increases the number of support points during the movement of the button 200, distributing the lateral force experienced by the button 200 when sliding in the first direction to the contact surfaces of the two guide posts 500 and the through hole 130, thereby avoiding localized wear or displacement caused by single-point force.

[0079] Furthermore, the one-to-one correspondence between the two through holes 130 and the guide posts 500 ensures that each guide post 500 is constrained by the hole wall during movement, further improving the stability of the guide trajectory. This combination of double guide posts 500 and double through holes 130 not only enhances the overall rigidity of the structure but also balances the force distribution of the button 200 during pressing through a symmetrical layout, making the operation of the unlocking switch 10 smoother and more reliable.

[0080] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the unlocking switch 10 may further include a guide tube 600, which extends along a first direction and has its opening communicating with the through hole 130. The guide post 500 is inserted into the guide tube 600 and the through hole 130.

[0081] The guide tube 600 extends along the first direction, and its extension direction is consistent with the movement direction of the button 200, so that the sliding path of the guide post 500 in the guide tube 600 is strictly limited to the first direction, so as to prevent the guide post 500 from deviating during movement.

[0082] The guide tube 600's opening is connected to the through hole 130, indicating that the guide tube 600 and the through hole 130 on the base 100 form a continuous channel, and the guide post 500 is simultaneously inserted into both the guide tube 600 and the through hole 130. This design ensures that the guide post 500 is not only radially constrained by the through hole 130 during movement, but also axially wrapped by the longer guide tube 600, thereby increasing the contact area between the guide post 500 and the guide structure.

[0083] The guide post 500 is inserted into the guide tube 600 and the through hole 130, meaning that the movement path of the guide post 500 is jointly defined by the guide tube 600 and the through hole 130. Compared to the method of guidance only through the through hole 130, the extra wrapping length provided by the guide tube 600 can enhance the lateral support of the guide post 500, reduce the shaking or tilting of the button 200 due to uneven force during pressing or rebounding, and thus improve the stability of the overall structure.

[0084] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the return element 300 is a compression spring, which is sleeved on the outer periphery of the guide tube 600 and the guide post 500. One end of the compression spring is connected to the inner bottom wall of the mounting groove 110, and the other end is connected to the button 200.

[0085] A compression spring is used as the return element 300, utilizing its elastic deformation characteristics to achieve automatic rebound after the button 200 is pressed. This design is simple and low-cost. The compression spring is sleeved on the outer periphery of the guide tube 600 and guide post 500. The physical constraint of the guide tube 600 and guide post 500 limits the radial displacement of the spring during extension and retraction, preventing the spring from deviating from its rebound path or interfering with other components due to wobbling. One end of the compression spring is connected to the inner bottom wall of the mounting groove 110, and the other end is connected to the button 200, ensuring that the spring's extension and retraction direction is consistent with the button 200's movement direction, thus ensuring effective transmission of the rebound force.

[0086] In addition, by arranging the compression spring, guide tube 600, and guide post 500 coaxially, the space of the spring and guide structure is reused, reducing the independent space occupied by components in the mounting groove 110, thereby improving the compactness and integration of the overall structure.

[0087] Reference Figure 1 , Figure 5 and Figure 6 In some embodiments, the side wall of the base 100 has a first guide groove 120 extending in a first direction. The unlocking switch 10 may also include a connecting structure (not shown in the figure), one end of which is connected to the movable member 410, and the other end passes through the first guide groove 120 and is connected to the button 200 in the mounting groove 110.

[0088] This technical solution uses a first guide groove 120 structure to physically constrain the movement path of the connecting structure, so that the movable part 410 can only move linearly along the first direction during the pressing of the button 200, thus avoiding the problem of lateral displacement of the movable part 410 due to lack of guidance.

[0089] The connection structure adopts a layout in which one end is fixed to the movable part 410 and the other end passes through the guide groove and connects to the button 200. This not only realizes the linkage between the movable part 410 and the button 200, but also restricts the movement trajectory of the connection structure to a single degree of freedom through the limiting effect of the guide groove, thereby improving the operational stability of the unlocking mechanism.

[0090] Reference Figure 1 , Figure 5 and Figure 6 In some embodiments, the movable member 410 is also used to connect with the cable 30, and the movable member 410 has a through hole for the cable 30 to be installed.

[0091] The design of connecting the movable component 410 to the cable 30 allows the external cable 30 mechanism to be directly driven through the movable component 410 when the button 200 is pressed, thus transmitting the unlocking action to the seat locking structure. This achieves an integrated design of the mechanical transmission path, reduces the intermediate connection structure between the unlocking switch 10 and the external actuator, and optimizes the overall compactness of the structure.

[0092] Reference Figure 1 , Figure 5 and Figure 6 In some embodiments, the movable element 410 may include a main body 411 and an abutment arm 412.

[0093] The main body 411 is connected to the connecting structure, and the abutting arm 412 is disposed at one end of the main body 411 near the fixing member 420. The abutting arm 412 is used to abut against the fixing member 420.

[0094] By decomposing the movable component 410 into a modular structure consisting of a main body 411 and an abutment arm 412, the component structure is optimized while ensuring the limiting function. The main body 411 serves as the basic connecting unit, and through direct cooperation with the connecting structure, it realizes the linkage transmission relationship between the movable component 410 and the button 200, ensuring the effective transmission of driving force.

[0095] The abutment arm 412 adopts a partially extended structure, with a contact point only located at the end of the main body 411 near the fixing member 420. This ensures that the extension length and volume of the abutment arm 412 only need to meet the single-point contact requirement with the fixing member 420, significantly reducing material usage compared to the integral movable part 410. This split design maintains the core function of the movable part 410 while reducing material costs through structural simplification.

[0096] The orientation of the abutment arm 412 ensures that its contact surface is parallel to the fixing member 420, forming a surface contact type limit stop during the reset process of the button 200, thus preventing the moving member 410 from deflecting due to uneven force.

[0097] Reference Figure 1 , Figure 5 and Figure 6 In some embodiments, the fastener 420 may include two spaced-apart abutment blocks 421. Two abutment arms 412 may be included, each abutment arm 412 corresponding to one abutment block 421, and the abutment arm 412 abuts against the abutment block 421.

[0098] This technical solution sets the fixing member 420 as two spaced abutment blocks 421, which form a one-to-one abutment relationship with the two abutment arms 412 of the movable member 410, so that when the movable member 410 springs back to the initial position, the two abutment arms 412 can contact the two abutment blocks 421 simultaneously.

[0099] This symmetrical structural design of the double support arms and double abutment blocks 421 ensures that the supporting force on the movable part 410 during the abutment and limiting process is evenly distributed to the two contact points, avoiding local stress concentration caused by single-point contact. Simultaneously, the abutment blocks 421 are arranged at intervals, reducing material usage compared to the integral fastener 420, thus lowering the manufacturing cost of the fastener 420 while maintaining structural strength. The cooperation between the two abutment arms 412 and the two abutment blocks 421 maintains the stability of the limiting mechanism 400 and optimizes the number of components through modular design.

[0100] Reference Figure 7 This application embodiment also provides a seat, which may include a foldable seat (not shown in the figure) and a backrest 20, a locking structure (not shown in the figure), and the aforementioned unlocking switch 10. The locking structure is used to control the folding state of the seat and the backrest 20, and the unlocking switch 10 is controlled and connected to the locking structure. The locking structure is used to cause the backrest 20 to flip and fold towards the seat when the unlocking switch 10 is activated.

[0101] This seat solves the problems of low space utilization and inconvenient operation of traditional seat unlocking devices by systematically integrating the push-to-unlock switch 10 with the folding mechanism.

[0102] The foldable seat and backrest 20 form the basic structure, providing the physical carrier for the unlocking action. The locking structure, as the core control unit, directly determines the switching of the folding state, and its linkage control relationship with the unlocking switch 10 enables precise triggering of the mechanical action. The aforementioned unlocking switch 10 inherits the technical advantages of press-type operation, such as space saving, stable automatic rebound, and reliable guide limit.

[0103] When the unlocking switch 10 is pressed, the locking structure is released via the pull cable 30 or mechanical linkage, allowing the backrest 20 to fold and flip towards the seat under the action of gravity or external force. This technical solution deeply couples the compact unlocking mechanism with the seat folding function, retaining the low space occupation of the push-button switch while achieving reliable execution of the folding action through system-level design.

[0104] In some embodiments, the foldable seat described above can be used as a seat in a vehicle. The vehicle can be a gasoline-powered vehicle, or it can be a new energy vehicle, such as a pure electric vehicle (PEV / BEV), a range-extended electric vehicle (REEV), a hybrid electric vehicle (HEV), or a fuel cell electric vehicle. The vehicle can also be any vehicle equipped with a battery.

[0105] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An unlocking switch (10), characterized in that, Unlocking the seat back (20) includes: A base (100) having a mounting groove (110) for mounting on the backrest (20) of the seat; A button (200) is slidably disposed in the mounting groove (110) along the first direction; The return piece (300) is connected at one end to the base (100) and at the other end to the button (200). The return piece (300) is used to drive the button (200) to return to its initial position after being pressed. The limiting mechanism (400) includes a movable part (410) and a fixed part (420). The fixed part (420) is disposed on the outer side wall of the base (100). The movable part (410) is located on the outer side of the base (100) and connected to the button (200) in the mounting groove (110). The movable part (410) slides along the first direction with the button (200). The fixed part (420) is used to abut against the movable part (410) when the button (200) returns to the initial position.

2. The unlocking switch (10) according to claim 1, characterized in that, The base (100) has a first guide groove (120) extending in a first direction on its side wall; The unlocking switch (10) also includes a connecting structure, one end of which is connected to the movable part (410), and the other end passes through the first guide groove (120) and is connected to the button (200) in the mounting groove (110); And / or, The movable part (410) is also used to connect to the cable (30).

3. The unlocking switch (10) according to claim 2, characterized in that, The movable component (410) includes: The main body (411) is connected to the connecting structure; An abutment arm (412) is provided at one end of the main body (411) near the fixing member (420), and the abutment arm (412) is used to abut against the fixing member (420).

4. The unlocking switch (10) according to claim 3, characterized in that, The fastener (420) includes two spaced-apart abutment blocks (421); The abutting arm (412) includes two, each abutting arm (412) corresponds to one abutting block (421), and the abutting arm (412) abuts against the abutting block (421).

5. The unlocking switch (10) according to claim 1, characterized in that, It also includes guide structures; The guide structure is connected to the button (200), and the inner wall of the mounting groove (110) has a second guide groove extending along the first direction, and the guide structure is located in the second guide groove.

6. The unlocking switch (10) according to claim 1, characterized in that, It also includes guide pillars (500); The guide post (500) is disposed on one side of the bottom wall of the button (200) facing the mounting groove (110), and the guide post (500) extends along the first direction; The bottom wall of the mounting groove (110) is provided with a through hole (130) that cooperates with the guide post (500), and the guide post (500) is inserted into the through hole (130).

7. The unlocking switch (10) according to claim 6, characterized in that, The guide post (500) includes two, and the two guide posts (500) are spaced apart on the surface of the button (200) facing the through hole (130); The through hole (130) includes two, and each guide post (500) is inserted into one of the through holes (130).

8. The unlocking switch (10) according to claim 6, characterized in that, It also includes a guide tube (600); The guide tube (600) extends along a first direction, and the opening of the guide tube (600) is in communication with the through hole (130); The guide post (500) is inserted into the guide tube (600) and the through hole (130).

9. The unlocking switch (10) according to claim 8, characterized in that, The return element (300) is a compression spring; The compression spring is sleeved on the outer periphery of the guide tube (600) and the guide post (500); One end of the compression spring is connected to the inner bottom wall of the mounting groove (110), and the other end is connected to the button (200).

10. A type of seat, characterized in that, It includes a foldable seat and backrest (20), a locking mechanism, and an unlocking switch (10) as claimed in any one of claims 1 to 9; The locking structure is used to control the folding state of the seat and the backrest (20). The unlocking switch (10) is connected to the locking structure. The locking structure is used to cause the backrest (20) to flip and fold towards the seat when the unlocking switch (10) is driven.

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