A buttonless unlocking device

Abstract

The application relates to a buttonless unlocking device and belongs to the technical field of vehicle accessories. The buttonless unlocking device comprises a supporting frame and a mounting interface, the mounting interface comprises a mounting shell, a protection piece and a first elastic piece, further comprises a locking assembly, the locking assembly comprises a locking frame, a first magnetic sheet arranged on the locking frame, a locking piece slidably arranged on the mounting interface and abuttingly matched with the locking frame, and a second elastic piece for driving the locking frame to reset, and the mounting shell is internally provided with a locking groove for sliding of the locking piece; the supporting frame is provided with a second magnetic sheet which is magnetically repelled by the first magnetic sheet; when the second magnetic sheet approaches the first magnetic sheet, the first magnetic sheet drives the locking frame to rotate, the locking frame drives the locking piece to slide and separate from the locking groove, and the protection piece is unlocked from the locking state. The application has the effects of improving the safety and dustproofness of the protection piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle accessories, in particular to a buttonless unlocking device. BACKGROUND

[0002] As an important means of transportation in our life, vehicles are widely used in people's life to meet people's convenient, fast and efficient travel needs. More and more people use flat electronic devices to watch videos, listen to music or play games during driving to improve the entertainment during driving.

[0003] The Chinese utility model patent with publication number CN220096264U discloses a support frame, a bearing and a seat assembly. The seat assembly in the reference patent includes a seat, a mounting interface provided on the seat, and a support frame inserted into the mounting interface. The flat electronic device is mounted on the support frame, and the user in the rear seat can use the flat electronic device. The mounting interface includes a mounting piece, a stop piece, a protection piece, a third rotating shaft and a second reset elastic piece. The protection piece is used to cover the insertion slot for the support frame, and the protection piece is rotatably installed on the stop piece through the third rotating shaft. The support frame is inserted into the mounting interface, so that the protection piece is flipped upward towards the seat. When the support frame is removed from the mounting interface, the protection piece is automatically reset under the action of the second reset elastic piece, and the insertion slot is covered again.

[0004] For the above related technology, although the protection piece covers the insertion slot through the second reset elastic piece, the protection piece itself is not locked, and the rear user may still accidentally touch the protection piece, causing the protection piece to be manually opened, which may damage the circuit in the mounting interface or cause dust to enter. SUMMARY

[0005] In order to reduce the probability of accidental opening of the protection piece and improve the safety of the mounting interface, the present application provides a buttonless unlocking device.

[0006] The buttonless unlocking device provided by the present application adopts the following technical scheme:

[0007] A buttonless unlocking device, comprising a support frame for mounting a tablet electronic device and a mounting interface arranged on a back of a seat, the mounting interface comprising a mounting housing, a protection member rotatably mounted on the mounting housing, and a first elastic member for driving the protection member to reset, further comprising a locking assembly for locking the protection member, the locking assembly comprising a locking frame rotatably mounted on the mounting interface, a first magnetic sheet arranged on the locking frame, a locking member slidably mounted on the mounting interface and abuttingly matched with the locking frame, and a second elastic member for driving the locking frame to reset, the mounting housing having a locking groove inside for the locking member to slide; the support frame is provided with a second magnetic sheet magnetically attracted to the first magnetic sheet, when the second magnetic sheet approaches the first magnetic sheet, the first magnetic sheet drives the locking frame to rotate, the locking frame drives the locking member to slide away from the locking groove, and the protection member is unlocked from the locked state.

[0008] By adopting the above technical scheme, the locking assembly is arranged to lock the protection member, thereby reducing the probability of the internal space of the mounting interface being communicated with the outside due to the protection member being touched by mistake by a user in the rear row of the vehicle, and improving the safety performance and dustproof effect of the mounting interface. When the support frame needs to be mounted, the locking member is automatically separated from the locking groove and the protection member is unlocked from the locked state through the cooperation of the first magnetic sheet and the second magnetic sheet, the support frame can be directly inserted into the mounting interface, the unlocking of the protection member and the insertion of the support frame are synchronized, the operation is convenient, and the unlocking efficiency is high. When the support frame is separated from the mounting interface, the locking frame is automatically reset under the action of the second elastic member, so that the protection member is relocked.

[0009] Optionally, the locking member comprises a locking portion for being inserted into the locking groove and a driving portion matched with the locking frame, the driving portion is provided with a first driving slope, and the locking frame has a second driving slope abuttingly matched with the first driving slope.

[0010] By adopting the above technical scheme, the cooperation mode of the locking member and the locking frame is disclosed, the locking member comprises a locking portion and a driving portion, the locking portion and the locking groove are inserted into each other, the rotation of the protection member is limited, and the protection member is locked. When the locking frame rotates, the first driving slope of the driving portion and the second driving slope of the locking frame are matched, the rotary motion is converted into vertical motion, the sliding motion of the locking member as a whole is realized, the mechanism design is simplified, and the space is saved.

[0011] Optionally, the second elastic member comprises a first wire spring and a second wire spring, the first wire spring drives the locking member to have a tendency to move towards the locking groove, the driving portion is provided with a first wire groove at an end portion away from the second driving slope, and the protection member is provided with a second wire groove for arranging both ends of the wire spring.

[0012] By adopting the technical scheme, the structure of the second elastic member is disclosed, the two ends of the first wire spring are arranged in the second wire slot of the protection member, and the part between the two ends is arranged in the first wire slot, when the support frame is inserted into the mounting interface, the locking member is separated from the locking slot, the first wire spring is lifted and bent by the locking member, after the support frame is removed from the mounting interface, the first wire spring recovers deformation without external pressure, so that the locking member is pressed into the locking slot again.

[0013] Optionally, the second wire spring drives the locking frame to have a tendency to rotate away from the protection member, the protection member is provided with a third wire slot for arranging the two ends of the second wire spring, and the locking frame is provided with a fourth wire slot for arranging the two ends of the second wire spring.

[0014] By adopting the technical scheme, the second wire spring is used for rotating reset of the locking frame, when the support frame is separated from the mounting interface, that is, the external pressure on the second wire spring is released, the second wire spring recovers deformation, and drives the locking frame to rotate away from the protection member, and the locking member is reinserted into the locking slot under the action of the first wire spring.

[0015] Optionally, the protection member is provided with a first limiting sliding groove for sliding of the locking member, and the first limiting sliding groove is located on the side of the protection member away from the first elastic member.

[0016] By adopting the technical scheme, the first limiting sliding groove is arranged, which can limit and guide the sliding of the locking member, and the stability of the locking member during sliding is improved.

[0017] Optionally, the mounting interface is further provided with a limiting frame body for limiting a rotation angle of the locking frame, the limiting frame body is fixedly connected with the protection member, the limiting frame body has a positioning surface for abutting against the locking frame, and when the locking frame abuts against the positioning surface, the protection member is in a locked state.

[0018] By adopting the technical scheme, the limiting frame body is arranged, which can limit the rotation angle of the locking frame, so that when the second elastic member recovers deformation, the situation that the locking frame rotates too much and the attraction and cooperation of the second magnetic piece and the first magnetic piece are weakened is reduced.

[0019] Optionally, the device comprises two groups of locking assemblies, the two groups of locking assemblies are symmetrically arranged along a central axis of the protection member in a length direction of the protection member, the mounting shell is provided with two groups of rotating seats for rotating installation of the two groups of locking assemblies, the rotating seat is provided with a first rotating shaft, the locking assembly is provided with a transmission member at the first rotating shaft, and synchronous rotation of the two groups of locking assemblies is realized through the transmission member.

[0020] By adopting the technical scheme, the two sets of symmetrical locking assemblies can achieve more ideal locking effect on the protection member, and further reduce the probability of accidental opening of the protection member, and the transmission member is arranged to enable the two sets of locking assemblies to move synchronously, thereby improving the unlocking efficiency of the locking assemblies.

[0021] Optionally, the transmission member comprises a first transmission gear arranged on one of the first rotating shafts and a second transmission gear arranged on the other first rotating shaft, and the first transmission gear and the second transmission gear are in meshing engagement.

[0022] By adopting the technical scheme, the structure of the transmission member is disclosed, and the meshing engagement of the first transmission gear and the second transmission gear enables one set of locking frames to drive the other set of locking frames to rotate synchronously when one set of locking frames rotates, thereby achieving synchronization of unlocking and locking of the two sets of locking assemblies.

[0023] Optionally, the locking frame is provided with a first mounting groove for mounting the first magnetic sheet, and the locking frame is provided with a limiting stopper for limiting the first magnetic sheet from being separated and a guide inclined block for guiding the first magnetic sheet to be mounted at an opening end surface of the first mounting groove.

[0024] By adopting the technical scheme, the mounting mode of the first magnetic sheet is disclosed, the first magnetic sheet is inserted into the first mounting groove along the guide inclined block, and then the first magnetic sheet is completely pressed into the first mounting groove by manual or equipment, and the limiting stopper is arranged to reduce the probability of the limiting stopper being separated from the first mounting groove.

[0025] Optionally, the support frame comprises a support frame body, a protection shell inserted into the support frame body, and the second magnetic sheet, and an end portion of the support frame body is provided with a second mounting groove for mounting the second magnetic sheet.

[0026] By adopting the technical scheme, the structure of the support frame is disclosed, the second magnetic sheet is fixedly inserted into the second mounting groove, and then the protection shell is inserted into the support frame, and the protection shell plays a protection and fixing role on the second magnetic sheet.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] By arranging the locking assembly, the protection member can be locked, the situation that the internal space of the mounting interface is communicated with the outside world due to accidental touch of the protection member by the user in the rear row of the vehicle is reduced, and the safety and dustproof effect of the mounting interface are improved,

[0029] By cooperation of the first magnetic sheet and the second magnetic sheet, the unlocking operation is simple, and the probability of accidental opening is reduced.

[0030] The application sets two groups of locking assemblies and transmission members, so that the locking effect of the protection member is more ideal, and when one group of locking assemblies switches state, the other group of locking assemblies is synchronously switched by the transmission member, so that the reliability and stability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the embodiment of the application.

[0032] Figure 2 is an exploded schematic diagram of the mounting interface of the embodiment of the application.

[0033] Figure 3 is an exploded schematic diagram of the protection member and the outer cover of the embodiment of the application.

[0034] Figure 4 is a schematic diagram of the protection member in the locked state of the embodiment of the application.

[0035] Figure 5 is a schematic diagram of the protection member in the unlocked state of the embodiment of the application. Figure 4 is a partial enlarged schematic diagram of A in FIG. 7.

[0036] Figure 6 is an exploded schematic diagram of the locking frame and the first magnetic sheet in the embodiment of the application.

[0037] Figure 7 is a schematic diagram of the protection member in the unlocked state of the embodiment of the application.

[0038] Figure 8 is an exploded structural schematic diagram of the support frame of the embodiment of the application.

[0039] Figure 9 is a schematic diagram of the protection member in the locked state and one group of locking frames hidden of the embodiment of the application.

[0040] Figure 10 is a schematic diagram of the cooperation structure of the limiting frame body and the protection member in the embodiment of the application.

[0041] Explanation of reference signs: 1, support frame; 11, second magnetic sheet; 12, support frame body; 121, second mounting groove; 13, protective shell; 2, mounting interface; 3, mounting shell; 31, shell seat; 32, decorative strip; 321, plug-in groove; 322, locking groove; 33, outer side cover body; 34, limiting frame body; 341, limiting rotating groove; 3411, positioning surface; 342, second limiting sliding groove; 35, second rotating shaft; 4, protective piece; 41, compression ring surface; 42, rotating seat; 43, first rotating shaft; 44, first limiting sliding groove; 45, second wire groove; 46, limiting seat; 461, third wire groove; 5, first elastic piece; 6, locking assembly; 61, locking frame; 611, first mounting groove; 612, limiting stopper; 6121, limiting stop surface; 613, guide inclined block; 6131, guide inclined surface; 614, give-way groove; 6141, second driving inclined surface; 615, fourth wire groove; 62, first magnetic sheet; 63, locking piece; 631, locking portion; 632, driving portion; 6321, first driving inclined surface; 6322, first wire groove; 64, second elastic piece; 641, first wire spring; 642, second wire spring; 65, transmission piece; 651, first transmission gear; 652, second transmission gear. DETAILED DESCRIPTION

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the present application can be arranged in different directions, so these orientation-indicating terms are only illustrative and should not be regarded as limiting, such as "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features.

[0043] The following will be described in detail below Figures 1-10 The present application is further described in detail.

[0044] The present application discloses a buttonless unlocking device.

[0045] Reference will be made to Figure 1 The buttonless unlocking device is used for vehicle seat and tablet electronic device installation, comprising a support frame 1 for tablet electronic device installation and a mounting interface 2 mounted on the back of the seat.

[0046] Reference will be made toFigure 2 The mounting interface 2 comprises a mounting housing 3, a protection piece 4 rotatably mounted on the mounting housing 3, a first elastic piece 5 for resetting the protection piece 4, and a locking assembly 6 for locking the protection piece 4. The mounting housing 3 comprises a housing base 31 for fixed connection with a seat, a decorative strip 32 fixedly connected with the housing base 31, an outer cover 33 arranged on the outer side end surface of the decorative strip 32, and a limiting rack 34 covering and locking the locking assembly 6. The housing base 31 is fixed with the seat by means of bolts or the like, and the outer cover 33 is fixedly connected with the decorative strip 32 by insertion.

[0047] In combination Figure 3 The decorative strip 32 has an insertion slot 321 penetrating through the two side end surfaces and for insertion of the support frame 1, and the protection piece 4 is rotatably mounted on the decorative strip 32 and covers and seals the insertion slot 321. The end surface of the protection piece 4 exposed to the outside of the seat is defined as the outer side, and the position of the insertion slot 321 is defined as the inner side.

[0048] The protection piece 4 is in the shape of a rectangular plate with circular arc portions at both ends, and the outer side end surface is flush with the surface of the outer cover 33. The protection piece 4 also has a pressing ring surface 41 at the edge of the outer side end surface for pressing of the outer cover 33, so that the protection piece 4 cannot rotate outwardly, and the overall appearance is improved.

[0049] Referring to Figure 3 and Figure 4 The locking assembly 6 comprises a locking rack 61 rotatably mounted on the protection piece 4, a first magnetic piece 62 limitingly mounted on the locking rack 61, a locking piece 63 slidingly mounted on the mounting interface 2 and abuttingly matched with the locking rack 61, and a second elastic piece 64 for driving the locking rack 61 to reset. In the embodiment, the mounting interface 2 is provided with two sets of locking assemblies 6, and the two sets of locking assemblies 6 are symmetrically arranged along the central axis of the protection piece 4.

[0050] The protection piece 4 has a rotating base 42 for rotatable mounting of the two sets of locking assemblies 6, and a first rotating shaft 43 is rotatably mounted at the rotating base 42. The rotating axis of the first rotating shaft 43 is perpendicular to the rotating axis of the protection piece 4. The rotating base 42 is located on the central axis of the protection piece 4, and the locking assembly 6 is fixed with a transmission piece 65 at the first rotating shaft 43, so that synchronous rotation of the two sets of locking assemblies 6 is realized through the transmission piece 65. The transmission piece 65 comprises a first transmission gear 651 fixed to one of the first rotating shafts 43 and a second transmission gear 652 fixed to the other first rotating shaft 43, and both transmission gears are half-toothed gears.

[0051] Referring to Figure 6The first magnetic sheet 62 is a circular magnetic sheet. The locking frame 61 has a first mounting groove 611 on the side away from the first rotating shaft 43 for limiting installation of the first magnetic sheet 62. The locking frame 61 is integrally provided with a limiting stop block 612 and a guide inclined block 613 at the groove opening of the first mounting groove 611. The limiting stop block 612 and the guide inclined block 613 are symmetrically arranged along the axis of the first mounting groove 611. The limiting stop block 612 has a limiting stop surface 6121, and the guide inclined block 613 has a guide inclined surface 6131. The limiting stop surface and the guide inclined surface 6131 have the same inclination direction. When assembled, the first magnetic sheet 62 is inserted from the side of the guide inclined block 613, and then is completely installed into the first mounting groove 611 by pressing.

[0052] With reference to Figure 6 and Figure 7 , the locking piece 63 is slidingly installed in the decorative strip 32, and the sliding direction of the locking piece 63 is parallel to the first rotating shaft 43. The decorative strip 32 is provided with a locking groove 322 in the inner wall of the insertion groove 321 for insertion of the locking piece 63. The locking piece 63 comprises a locking portion 631 and a driving portion 632.

[0053] The locking portion 631 and the driving portion 632 are integrally provided. The protective piece 4 has a first limiting sliding groove 44 for limiting sliding of the locking portion 631. The locking portion 631 further has a guide surface (not marked in the figure) for insertion into the locking groove 322. The driving portion 632 is located on the side of the locking portion 631 away from the protective piece 4. The driving portion 632 has a first driving inclined surface 6321 at the end facing the locking groove 322. The locking frame 61 has a clearance groove 614 corresponding to the locking piece 63. The inner wall of the clearance groove 614 has a second driving inclined surface 6141 for abutting and cooperating with the first driving inclined surface 6321.

[0054] According to Figure 4 and Figure 7 , the protective piece 4 has two states of locking and unlocking through cooperation of the locking frame 61 and the locking piece 63: when the locking portion 631 is located in the locking groove 322, the protective piece 4 is in the locking state ( Figure 4 ), at this time, the first driving inclined surface 6321 and the second driving inclined surface 6141 abut each other, and the inner side surfaces of the locking frame 61 and the protective piece 4 have a rotating gap; when the locking portion 631 is separated from the locking groove 322, the protective piece 4 is in the unlocking state ( Figure 7 ), at this time, the first driving inclined surface 6321 and the second driving inclined surface 6141 are separated, and the inner side surfaces of the locking frame 61 and the protective piece 4 are in close contact.

[0055] The unlocking of the protection member 4 is realized by the principle of magnetic attraction. The end of the support frame 1 is provided with a second magnetic sheet 11 which is attracted to the first magnetic sheet 62. When the support frame 1 approaches the outer side of the protection member 4, the first magnetic sheet 62 is driven to rotate the locking frame 61 towards the protection member 4 under the action of the second magnetic sheet 11, so that the second driving inclined surface 6141 and the first driving inclined surface 6321 abut against each other, and the locking member 63 is separated from the locking groove 322.

[0056] With reference to Figure 8 , the support frame 1 comprises a support frame body 12 and a protective shell 13 sleeved on the support frame body 12. The end of the support frame body 12 is provided with two second mounting grooves 121 for mounting the second magnetic sheet 11. The two second mounting grooves 121 correspond to the first mounting grooves 611 of the two sets of locking assemblies 6 respectively. The protective shell 13 and the support frame body 12 are clamped and fixed.

[0057] With reference to Figure 7 and Figure 9 , the second elastic member 64 is used for relocking of the locking assembly 6 after the support frame 1 is separated. The two sets of locking assemblies 6 share the second elastic member. The second elastic member 64 comprises a first wire spring 641 and a second wire spring 642. The first wire spring 641 is used for resetting the locking member 63, and the second wire spring 642 is used for resetting the locking member 63. The first wire spring 641 and the second wire spring 642 are consistent in structure and each comprises two end portions and a spring body.

[0058] The first wire spring 641 is arranged along the length direction of the protection member 4. The side of the driving portion 632 away from the locking groove 322 is provided with a first wire groove 6322 for arranging the spring body of the first wire spring 641. The protection member 4 is provided with a second wire groove 45 on one side of the first limiting sliding groove 44 for arranging the two ends of the first wire spring 641. The opening directions of the first wire groove 6322 and the second wire groove 45 are opposite, and the opening of the second wire groove 45 faces the locking groove 322. The first wire spring 641 provides an elastic force for the sliding reset of the locking member 63. In the normal state of the first wire spring 641, the protection member 4 is in the locked state, and the locking portion 631 is inserted and matched with the locking groove 322. When the protection member 4 is in the unlocked state, the locking portion 631 is separated from the locking groove 322, and the first wire spring 641 is bent and deformed in the direction away from the locking groove 322 under the action of the locking member 63.

[0059] The second wire spring 642 is arranged along the length direction of the protection piece 4, the protection piece 4 is integrally provided with a limiting seat 46 between the two rotating seats 42, the limiting seat 46 has a third wire groove 461 for limiting abutting of the spring body of the second wire spring 642, and the side of the locking frame 61 towards the protection piece 4 has a fourth wire groove 615 for arranging two ends of the second wire spring 642. The second wire spring 642 provides elastic force for rotation reset of the locking frame 61, and the bending direction of the second wire spring 642 is perpendicular to the first wire spring 641. The second wire spring 642 is in a bent normal state, the protection piece 4 is in a locked state, when the protection piece 4 is in an unlocked state, the locking portion 631 is separated from the locking groove 322, and the second wire spring 642 drives the locking frame 61 to rotate away from the protection piece 4.

[0060] With reference to Figure 10 In order to prevent the locking frame 61 from rotating too much when resetting and to prevent the rotation installation of the protection piece 4, the installation shell 3 further comprises a limiting frame body 34. The limiting frame body 34 is located on the inner side of the protection piece 4, and the limiting frame body 34 covers the locking assembly 6. The limiting frame body 34 is fixedly connected with the protection piece 4, and the limiting frame body 34 is rotationally installed on the side away from the locking groove 322 and the decorative strip 32. The decorative strip 32 has a second rotating shaft 35 matched with the limiting frame body 34. The first elastic member 5 is installed on the second rotating shaft 35, and the first elastic member 5 is a torsion spring member, and the two ends thereof are respectively abutted against the limiting frame body 34 and the inner side of the protection piece 4, so that the protection piece 4 has a tendency to always rotate outward.

[0061] The limiting frame body 34 has a limiting rotation groove 341 for rotation of the locking frame 61, and the bottom wall of the limiting rotation groove 341 has a positioning face 3411. When the locking frame 61 abuts against the positioning face 3411, the protection piece 4 is in a locked state. The limiting frame body 34 further has a second limiting sliding groove 342 corresponding to the first limiting sliding groove 44, and through the arrangement of the two limiting sliding grooves, the stability of the locking member 63 during sliding can be improved.

[0062] The implementation principle of the buttonless unlocking device is as follows: the protection piece 4 has two states of locking and unlocking: when the locking portion 631 is located in the locking groove 322, the protection piece 4 is in a locked state, at this time, the first driving inclined surface 6321 and the second driving inclined surface 6141 abut against each other, the locking frame 61 abuts against the positioning face of the limiting frame body 34, the locking frame 61 and the inner side of the protection piece 4 have a rotation gap, the first wire spring 641 is in a horizontal normal state, and the second wire spring 642 is in a bent normal state;

[0063] When the support frame 1 approaches the outside of the protection piece 4, the first magnetic sheet 62 and the second magnetic sheet 11 are attracted to each other, so that the locking frame 61 rotates towards the inner side surface of the protection piece 4, and the two groups of locking assemblies 6 rotate synchronously through the transmission member 65; under the abutting action of the first driving inclined surface 6321 and the second driving inclined surface 6141, the locking part 631 is separated from the locking groove 322, the locking frame 61 and the inner side surface of the protection piece 4 are attached, the spring body of the first wire spring 641 is bent towards the direction of the second rotating shaft 35, the middle included angle of the second wire spring 642 is reduced, and the whole is in a horizontal state;

[0064] When the support frame 1 is separated from the plug-in groove 321, the limiting frame body 34 and the protection piece 4 rotate to reset under the action of the second elastic member 64, and at the same time, the first wire spring 641 and the second wire spring 642 drive the locking piece 63 to slide and the locking frame 61 to rotate, respectively, without external constraints.

[0065] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A buttonless unlocking device, comprising a support frame (1) for mounting a tablet electronic device and a mounting interface (2) disposed on the back of a seat, the mounting interface (2) comprising a mounting housing (3), a protective member (4) rotatably mounted on the mounting housing (3), and a first elastic member (5) for driving the protective member (4) to reset, characterized in that, It also includes a locking assembly (6) for locking the protective member (4), the locking assembly (6) including a locking bracket (61) rotatably mounted on the mounting interface (2), a first magnetic piece (62) disposed on the locking bracket (61), a locking member (63) slidably mounted on the mounting interface (2) and abutting against the locking bracket (61), and a second elastic member (64) driving the locking bracket (61) to reset. The inner side of the mounting housing (3) has a locking groove (322) for the locking member (63) to slide. The protective member (4) is locked by the locking member (63). The support frame (1) is provided with a second magnetic piece (11) that is magnetically attracted to the first magnetic piece (62). When the second magnetic piece (11) approaches the first magnetic piece (62), the first magnetic piece (62) drives the locking frame (61) to rotate toward the support frame (1). The locking frame (61) drives the locking member (63) to slide away from the locking groove (322), and the protective member (4) unlocks from the locked state. The locking member (63) includes a locking part (631) for insertion into the locking groove (322) and a driving part (632) that cooperates with the locking frame (61). The driving part (632) is provided with a first driving ramp (6321), and the locking frame (61) has a second driving ramp (6141) that abuts against the first driving ramp (6321). The second elastic member (64) includes a first wire spring (641) and a second wire spring (642). The first wire spring (641) drives the locking member (63) to move toward the locking groove (322). The driving part (632) is provided with a first wire groove (6322) at the end away from the second driving ramp (6141) for the spring body of the first wire spring (641) to be arranged. The protective member (4) is provided with a second wire groove (45) for the two ends of the first wire spring (641) to be arranged.

2. The buttonless unlocking device according to claim 1, characterized in that, The second spring (642) drives the locking frame (61) to rotate away from the protective member (4), the protective member (4) is provided with a third groove (461) for the second spring (642) to stop and abut, and the locking frame (61) has a fourth groove (615) for the two ends of the second spring (642) to be arranged.

3. The buttonless unlocking device according to claim 1, characterized in that, The protective member (4) is provided with a first limiting groove (44) for the locking member (63) to slide, and the first limiting groove (44) is located on the side of the protective member (4) away from the first elastic member (5).

4. A buttonless unlocking device according to claim 3, characterized in that, The installation interface (2) is also rotatably provided with a limiting frame (34) for limiting the rotation angle of the locking frame (61). The limiting frame (34) and the protective member (4) are fixedly connected. The limiting frame (34) has a positioning surface (3411) for the locking frame (61) to abut. When the locking frame (61) abuts the positioning surface (3411), the protective member (4) is in a locked state.

5. A buttonless unlocking device according to claim 1, characterized in that, The device includes two sets of locking components (6), which are symmetrically arranged along the central axis of the length of the protective component (4). The mounting housing (3) is provided with two sets of rotating seats (42) for the two sets of locking components (6) to be rotatably mounted. A first rotating shaft (43) is provided on the rotating seat (42). A transmission component (65) is provided on the first rotating shaft (43) of the locking component (6), and the synchronous rotation of the two sets of locking components (6) is realized through the transmission component (65).

6. A buttonless unlocking device according to claim 5, characterized in that, The transmission component (65) includes a first transmission gear (651) disposed on one of the first rotating shafts (43) and a second transmission gear (652) disposed on the other first rotating shaft (43), wherein the first transmission gear (651) and the second transmission gear (652) mesh with each other.

7. A buttonless unlocking device according to claim 1, characterized in that, The locking frame (61) has a first mounting groove (611) for mounting the first magnetic piece (62). The locking frame (61) has a limiting block (612) on the open end face of the first mounting groove (611) to restrict the first magnetic piece (62) from disengaging and a guide block (613) to guide the first magnetic piece (62) to be mounted.

8. A buttonless unlocking device according to claim 1, characterized in that, The support frame (1) includes a support frame body (12), a protective shell (13) inserted into the support frame body (12), and a second magnetic sheet (11). The end of the support frame body (12) is provided with a second mounting groove (121) for mounting the second magnetic sheet (11).

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