Magnetic connection structure

Abstract

A magnetic connection structure is used for connection of a handrail of a baby stroller, the handrail is used for being detachably connected to a connecting base of the baby stroller, a protruding spring bolt and a first magnet are arranged in one of the connecting base and the handrail, a lock hole, an unlocking operation piece, a clamping and locking piece and a second magnet are arranged in the other one of the connecting base and the handrail, and the unlocking operation piece can actuate the clamping and locking piece. The clamping and locking piece can at least partially extend into the lock hole, and the second magnet and the first magnet can attract each other; during connection, when the handrail and the connecting base are close in the mode that the spring bolt is opposite to the lock hole, under the magnetic attraction action of the first magnet and the second magnet, the spring bolt rapidly enters the lock hole in the connecting direction Y to be connected with the clamping and locking piece, and therefore the handrail and the connecting base are rapidly connected together; during disassembly, the locking piece is driven by the unlocking operation piece to move to be separated from the spring bolt, so that the handrail can be separated from the connecting seat. According to the invention, the armrest can be quickly attracted and mounted on the connecting seat of the cart, manual alignment is not needed, the operation can be simplified, and the user experience is improved.

Description

Technical Field

[0001] The invention relates to the field of baby strollers, and in particular to a magnetic connection structure for a baby stroller handrail. Background Art

[0002] A baby stroller is a "transportation tool" for babies, and babies can sit or lie in the stroller. Usually, a baby stroller is provided with handrails, which are convenient for babies to hold when sitting in the stroller, and can prevent the baby from falling from the front of the stroller, thereby improving the safety of use. In order to facilitate the baby to get in and out of the stroller, the handrails are usually detachable, that is, the handrails can be opened to facilitate the user to put the baby in the stroller, or to facilitate the user to take the baby out of the stroller; when walking, the handrails are connected to the front of the stroller to ensure safety.

[0003] Existing armrests are usually detachably connected by a buckle structure, that is, sockets are provided on the connecting seats on the left and right sides of the cart, and buckles are provided at both ends of the armrest. The buckles can be inserted into the sockets to establish a connection so that the armrest can be installed on the cart; when the armrest needs to be removed, the button on the armrest is pressed, and the buckle can be disengaged from the socket, thereby achieving separation.

[0004] The existing armrest connection structures of this type are all manually plugged in along the extension direction of the armrest end, and manual alignment is required to achieve plugging. Moreover, the left and right ends usually need to be plugged in at the same time, so that the armrest as a whole moves in the front-to-back direction to connect or disconnect the armrest from the seat. If the armrest deviates from this direction, it is difficult for the two ends of the armrest to enter the plug hole for connection. Therefore, there is still room for improvement. Summary of the invention

[0005] The present invention aims to solve the above-mentioned problem and provides a magnetic connection structure for detachable installation of an armrest.

[0006] To solve the above problems, the present invention provides a magnetic connection structure for connecting an armrest of a baby stroller, wherein the armrest is used to be detachably connected to a connecting seat of the baby stroller, and is characterized in that a protruding lock tongue and a first magnet are provided in one of the connecting seat and the armrest, and a lock hole, a release operating member, a locking member and a second magnet are provided in the other, the release operating member can actuate the locking member, the locking member can at least partially extend into the lock hole, and the second magnet can be attracted to the first magnet; during connection, when the armrest and the connecting seat are close to each other in a manner that the lock tongue and the lock hole are opposite, under the magnetic attraction of the first magnet and the second magnet, the lock tongue quickly enters the lock hole along a connection direction Y and engages with the locking member, so that the armrest and the connecting seat are quickly connected together; during disassembly, the locking member is driven by the release operating member to move and disengage from the lock tongue, so that the armrest can be separated from the connecting seat.

[0007] Furthermore, the locking tongue and the first magnet are provided on the connecting seat; and the locking hole, the unlocking operating member, the locking member and the second magnet are provided on at least one end of the armrest.

[0008] Furthermore, the armrest includes a main body and a connecting part, the connecting part is connected to an end of the main body, and the lock hole, the unlocking operating member, the locking member and the second magnet are arranged on the connecting part.

[0009] Furthermore, the connecting portion is rotatably connected to the main body, and a rotation center thereof is perpendicular to the connecting direction Y.

[0010] Furthermore, a protruding positioning convex portion is provided on the side surface of the connecting portion where the lock hole is provided, and a concave positioning groove is provided on the side surface of the connecting seat where the lock tongue is provided. When the connecting seat is connected to the armrest, the positioning convex portion and the positioning groove are shape-engaged in the connection direction Y to prevent the armrest from rotating around the lock tongue.

[0011] Furthermore, the positioning groove includes an arc-shaped groove and a rectangular groove, the arc-shaped groove is arranged on the periphery of the locking tongue, and the rectangular grooves are distributed on both sides of the arc-shaped groove.

[0012] Furthermore, the lock release operating member includes a lock release operating part and an elastic part, the lock release operating parts are symmetrically arranged on both sides of the connecting part and partially exposed outside the connecting part, the elastic part is connected between the lock release operating parts, and the elastic part is used to drive the lock release operating member to reset; a protruding pushing part is provided on the lock release operating part or the elastic part, and the locking part is separately arranged from the lock release operating member; when the lock release operating part is operated, the pushing part pushes the locking part to disengage the locking part from the lock tongue.

[0013] Furthermore, a third magnet is provided on the locking member, and the locking member can be moved to engage with the locking tongue under the action of the magnetic force between the third magnet and the first magnet.

[0014] Furthermore, the connecting portion includes a matching connecting base and a cover shell, one end of the connecting base is rotatably connected to the armrest, the connecting base is provided with the locking hole, and the locking member, the unlocking operating member and the second magnet are provided between the connecting base and the cover shell.

[0015] Furthermore, a protruding supporting portion is provided on the end of the main body, the supporting portions are spaced apart from each other, and a first rotating shaft hole is provided on each supporting portion; one end of the connecting base is provided between the supporting portions, and a second rotating shaft hole is provided on the connecting base, and the connecting base is rotatably connected to the main body by a rotating shaft passing through the first rotating shaft hole and the second rotating shaft hole; the axial direction of the rotating shaft is perpendicular to the connecting direction Y.

[0016] Furthermore, one end of the main body is rotatably connected to the connecting seat, and one end of the main body is provided with the connecting portion and is detachably connected to the connecting seat.

[0017] The beneficial contribution of the present invention is that it effectively solves the above-mentioned problems. The magnetic connection structure of the present invention is provided with a first magnet and a second magnet on the armrest and the connecting seat for adsorption, and a lock tongue and a lock hole corresponding to the lock tongue, a locking part and a release operating part are provided, so that when the armrest and the connecting seat are connected, they can be quickly connected together under the magnetic attraction of the first magnet and the second magnet, and the connection can be established without manual alignment, thereby simplifying the operation and improving the user experience. In addition, the end of the armrest has a degree of freedom of rotation, so the movement of the armrest is not limited to translation along the front and rear directions, and the armrest can be unlocked and separated along the side of the cart. The magnetic connection structure of the present invention has the characteristics of novel structure, practical function, and easy use. It has strong practicality and should be vigorously promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a partial exploded schematic diagram of the present invention.

[0020] Figure 3 It is a schematic diagram of the structural decomposition of the present invention.

[0021] Figure 4 yes Figure 3 Schematic diagram from another perspective.

[0022] Figure 5 It is a cross-sectional view.

[0023] Figure 6 yes Figure 5 A partial enlarged view of .

[0024] Figure 7 It is a schematic diagram of the structural decomposition of the connection part.

[0025] Figure 8 It is a schematic diagram of the structure of the connection base.

[0026] Figure ID:

[0027] Armrest 10: main body 101, connecting part 102, connecting base 1021, second rotating shaft hole 10211, magnet frame 10212, slide groove 10213, cover shell 1022, positioning protrusion 1023, arc-shaped protrusion 10231, rectangular protrusion 10232, supporting part 103, first rotating shaft hole 104, rotating shaft 105, locking hole 11, unlocking operating member 12, unlocking operating part 121, elastic part 122, pushing part 123, locking member 13, working inclined surface 131, second magnet 14, third magnet 15;

[0028] Connecting seat 20: locking tongue 21, locking groove 211, first magnet 22, positioning groove 23, arc groove 231, rectangular groove 232;

[0029] Connection direction Y. DETAILED DESCRIPTION

[0030] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0031] like Figures 1 to 8 As shown, the magnetic connection structure of the present invention is used for connecting the handrail 10 of the baby stroller, wherein the handrail 10 is used to be detachably connected to the connecting seat 20 of the baby stroller. Generally, the connecting seats 20 are respectively provided at the left and right ends of the baby stroller. The specific form of the connecting seat 20 is not limited, and it is usually a rigid structure that can support and install the handrail 10.

[0032] The main points of the present invention are that a protruding lock tongue 21 and a first magnet 22 are provided in one of the connecting seat 20 and the armrest 10, and a lock hole 11, a release operating member 12, a locking member 13 and a second magnet 14 are provided in the other. The release operating member 12 is used for unlocking operation, which can actuate the locking member 13 to unlock. The locking member 13 is used to engage with the lock tongue 21, and it can at least partially extend into the lock hole 11. When the locking member 13 extends into the lock hole 11, the locking member 13 can establish engagement with the lock tongue 21, so that the connecting seat 20 and the armrest 10 are connected together. When the locking member 13 withdraws from the range of the lock hole 11, the locking member 13 is disengaged from the lock tongue 21, and the connecting seat 20 and the armrest 10 can be separated. The second magnet 14 can attract the first magnet 22.

[0033] During connection, when the armrest 10 and the connecting seat 20 are close to each other in a manner that the locking tongue 21 and the locking hole 11 are opposite to each other, the first magnet 22 and the second magnet 14 attract each other, so that the locking tongue 21 quickly enters the locking hole 11 along the connection direction Y and combines with the locking member 13, so that the armrest 10 and the connecting seat 20 are quickly connected together.

[0034] Since the first magnet 22 and the second magnet 14 are provided between the armrest 10 and the connecting base 20, even if the armrest 10 and the connecting base 20 are not completely aligned, the armrest 10 and the connecting base 20 will quickly establish engagement under the effect of magnetic attraction, which greatly facilitates user use.

[0035] It should be noted that the locking tongue 21 quickly enters the locking hole 11 along the connection direction Y and engages with the locking member 13, which means that the locking tongue 21 and the locking member 13 move relative to each other, which may be that the locking tongue 21 remains stationary and the locking member 13 moves toward the locking tongue 21; or the locking member 13 remains stationary and the locking tongue 21 moves toward the locking member 13. Therefore, when the locking tongue 21 and the locking member 13 move relative to each other, regardless of whether the locking tongue 21 is stationary or moving, for the locking hole 11, the locking tongue 21 moves relative to the locking hole 11 along the connection direction Y and enters the locking hole 11.

[0036] During disassembly, the locking member 13 can be driven to move by the unlocking operating member 12 , so that the locking member 13 is disengaged from the locking tongue 21 , and the armrest 10 can be separated from the connecting seat 20 .

[0037] The first magnet 22 is preferably arranged in the lock tongue 21; the second magnet 14 is preferably arranged at a position corresponding to the lock hole 11, so that when the lock tongue 21 is close to the lock hole 11, the first magnet 22 and the second magnet 14 attract each other to assist the lock tongue 21 to quickly establish engagement with the locking member 13.

[0038] In some embodiments, the locking tongue 21 and the first magnet 22 are provided on at least one end of the armrest 10 , and the locking hole 11 , the unlocking operating member 12 , the locking member 13 and the second magnet 14 are provided on the connecting seat 20 .

[0039] In this embodiment, the locking tongue 21 and the first magnet 22 are provided on the connecting seat 20, and the locking hole 11, the unlocking operating member 12, the locking member 13 and the second magnet 14 are provided on at least one end of the armrest 10. Therefore, this embodiment is described in this way, and other embodiments can be adaptively changed according to the content of this embodiment.

[0040] The armrest 10 may be magnetically connected to the connection base 20 at one end or at both ends.

[0041] When both ends of the armrest 10 are magnetically connected to the connecting seat 20, the lock hole 11, the unlocking operating member 12, the locking member 13 and the second magnet 14 are respectively provided at both ends of the armrest 10, and corresponding lock tongues 21 and first magnets 22 are respectively provided on the connecting seats 20 on the left and right sides of the cart.

[0042] In this embodiment, one end of the armrest 10 is magnetically connected to the connection base 20, and the other end of the armrest 10 is rotatably connected to the connection base 20. Therefore, the lock hole 11, the unlocking operating member 12, the locking member 13 and the second magnet 14 are provided at one end of the armrest 10 to be magnetically connected to the connection base 20, and the other end of the armrest 10 can be rotatably connected to the connection base 20 through various rotatable connection structures.

[0043] Furthermore, the armrest 10 includes a main body 101 and a connecting portion 102. The connecting portion 102 is connected to the end of the main body 101. The lock hole 11, the unlocking operating member 12, the locking member 13 and the second magnet 14 are arranged on the connecting portion 102.

[0044] In order to facilitate the separation of the armrest 10 from the connecting seat 20 , the connecting portion 102 is rotatably connected to the main body 101 , so that the connecting portion 102 can be rotated relative to the main body 101 , thereby facilitating the user to separate the connecting portion 102 from the connecting seat 20 .

[0045] When the connecting portion 102 rotates relative to the main body 101, its rotation center is perpendicular to the connecting direction Y. The connecting direction Y is substantially consistent with the axial direction of the locking tongue 21. When the rotation center is perpendicular to the connecting direction Y, the connecting portion 102 can be deflected in a direction away from the locking tongue 21 by rotation, so that the armrest 10 and the connecting seat 20 can be separated without moving the main body 101.

[0046] Furthermore, the rotation center is offset to one side of the locking hole 11 .

[0047] Furthermore, the connecting portion 102 includes a connecting base 1021 and a cover shell 1022 that are connected to each other. An accommodating space is formed between the connecting base 1021 and the cover shell 1022 for installing the unlocking operating member 12, the locking member 13 and the first magnet 22.

[0048] One end of the connection base 1021 is rotatably connected to the armrest 10. Specifically, a protruding support portion 103 is provided on the end of the main body 101. The support portions 103 are spaced in parallel to each other, and an insertion space is formed therebetween. First shaft holes 104 are respectively provided on the support portions 103. One end of the connection base 1021 is disposed between the support portions 103, that is, located in the insertion space. A second shaft hole 10211 is provided on the connection base 1021. The second shaft hole 10211 is opposite to the first shaft hole 104, and a shaft 105 is installed therein, and the axial direction of the shaft 105 is perpendicular to the connection direction Y. The connection base 1021 is rotatably connected to the main body 101 through the shaft 105. The connection portion 102 can rotate around the shaft 105.

[0049] The other end of the connecting base 1021 extends out of the supporting portion 103 and is provided with the locking hole 11 , so that the rotating shaft 105 can be biased to one side of the locking hole 11 .

[0050] In order to install the second magnet 14, a magnet frame 10212 is provided at a position of the connecting base 1021 corresponding to the position of the lock hole 11. The magnet frame 10212 is integrally formed with the connecting base 1021, and the first magnet 22 is fixedly embedded in the groove of the magnet frame 10212 and faces the lock hole 11.

[0051] To achieve unlocking, the release operating member 12 is movably disposed between the connection base 1021 and the cover shell 1022, and a portion of the release operating member 12 is exposed outside the connection portion 102. The release operating member 12 includes a release operating portion 121 and an elastic portion 122.

[0052] The unlocking operation part 121 and the elastic part 122 can be integrally formed or fixedly connected. In this embodiment, the unlocking operation member 12 and the elastic part 122 are integrally formed, wherein the unlocking operation member 12 is used for user operation, and is symmetrically arranged on both sides of the connecting part 102 and partially exposed on the connecting part 102. The elastic part 122 is connected between the unlocking operation parts 121, and is used to drive the unlocking operation part 121 to reset. When the unlocking operation member 12 is operated, the elastic part 122 is elastically deformed, so that elastic force can be accumulated to drive the unlocking operation part 121 to reset.

[0053] In this embodiment, the unlocking operation portion 121 is connected to the elastic portion 122 in a ring shape, which surrounds the outer periphery of the locking hole 11 .

[0054] In order to actuate the locking member 13, a protruding pushing portion 123 is provided on the unlocking operation portion 121 or the elastic portion 122. The pushing portion 123 may have any shape. When the unlocking operation portion 121 is operated, the pushing portion 123 moves toward the locking member 13 and pushes the locking member 13 to move, so that the locking member 13 is disengaged from the locking tongue 21.

[0055] In this embodiment, the pushing portion 123 is in the shape of a long strip, extending along the pressing direction of the unlocking operation portion 121, and is arranged on the inner side of the unlocking operation portion 121, that is, located in the annular structure formed by the unlocking operation portion 121 and the elastic portion 122. The number of the pushing portions 123 can be set as required. Preferably, a pushing portion 123 is respectively provided in the diagonal direction of the unlocking operation member 12, which can avoid unlocking when the unlocking operation portion 121 is pressed in one direction. Only when the unlocking operation member 12 is pressed in both directions, the locking member 13 can be completely disengaged from the locking tongue 21, otherwise, the locking tongue 21 cannot be disengaged from the locking member 13.

[0056] The locking member 13 is disposed separately from the unlocking operating member 12 and is disposed inside the unlocking operating member 12. In order to restrict the linear movement of the locking member 13, a slide groove 10213 is disposed on the connection base 1021, and the locking member 13 is movably disposed in the slide groove 10213 and can linearly move along the slide groove 10213. The moving direction of the locking member 13 is perpendicular to the moving direction of the unlocking operating portion 121 and perpendicular to the connection direction Y.

[0057] In order to drive the locking member 13 to move in a direction perpendicular to the moving direction of the unlocking operation portion 121, an action inclined surface 131 is provided on the locking member 13, and the action inclined surface 131 is inclined with respect to the moving direction of the unlocking operation portion 121 and is parallel to the connecting direction Y. In this way, when the unlocking operation portion 121 is pressed bidirectionally, the locking member 13 can be moved in a vertical direction.

[0058] When unlocking, the unlocking operation portion 121 is pressed bidirectionally, and the pushing portion 123 cooperates with the action inclined surface 131 to push the locking member 13 to move in a direction away from the locking tongue 21, thereby disengaging from the locking tongue 21, and further allowing the connecting portion 102 to be separated from the connecting base 1021.

[0059] In order to achieve locking, a third magnet 15 is provided in the locking member 13 . The third magnet 15 moves synchronously with the locking member 13 .

[0060] When the lock tongue 21 enters the lock hole 11 along the connection direction Y, the locking member 13 moves to engage with the lock tongue 21 under the magnetic force of the third magnet 15 and the first magnet 22. For example, the locking member 13 first moves in a direction away from the lock tongue 21 under the magnetic repulsion between the third magnet 15 and the first magnet 22, so that the lock tongue 21 can easily enter the lock hole 11; and as the positional relationship between the lock tongue 21 and the lock hole 11 changes, the magnetic repulsion is converted into a magnetic attraction, and the first magnet 22 attracts the third magnet 15 to move the locking member 13 toward the lock tongue 21, so that the locking member 13 engages with the lock tongue 21.

[0061] In order to facilitate the locking member 13 to enter the lock hole 11 and establish engagement with the lock tongue 21, a side opening that penetrates the lock hole 11 is provided on the side of the magnet frame 10212. The locking member 13 can at least partially extend into the lock hole 11 through the side opening.

[0062] The locking tongue 21 is protrudingly arranged on the connecting seat 20, and is a columnar structure. A locking groove 211 is arranged on the circumference of the locking tongue 21, and the locking groove 211 can be an annular structure or a non-annular structure. When the locking tongue 21 enters the lock hole 11, the locking member 13 can be inserted into the locking groove 211 in a direction transverse to the locking tongue 21, so that the locking tongue 21 and the locking member 13 are engaged. At this time, the locking tongue 21 cannot be withdrawn from the lock hole 11, and the armrest 10 and the connecting seat 20 are connected together and cannot be separated. When the locking member 13 moves away from the locking tongue 21 in a direction transverse to the locking tongue 21, the locking member 13 moves out of the locking groove 211, and the locking member 13 is disengaged from the locking tongue 21. At this time, the armrest 10 can be separated from the connecting seat 20.

[0063] In order to prevent the handrail 10 and the connecting seat 20 from rotating relative to each other, a protruding positioning protrusion 1023 is provided on one side surface of the connecting portion 102 provided with the lock hole 11, and a concave positioning groove 23 is provided on one side surface of the connecting seat 20 provided with the lock tongue 21. When the connecting seat 20 and the handrail 10 are connected together, the positioning protrusion 1023 and the positioning groove 23 are shape-engaged in the connection direction Y, thereby preventing the handrail 10 from rotating around the lock tongue 21.

[0064] Further, the positioning groove 23 includes an arc groove 231 and a rectangular groove 232. The arc groove 231 is arranged at the periphery of the lock tongue 21, and the rectangular groove 232 is distributed on both sides of the arc groove 231. Correspondingly, the positioning protrusion 1023 also includes an arc-shaped protrusion 10231 and a rectangular protrusion 10232 arranged at the periphery of the lock hole 11, and the rectangular protrusion 10232 is distributed on both sides of the arc-shaped protrusion 10231. The rectangular groove 232 and the rectangular protrusion 10232 have a rotation-stopping function, which can prevent the handrail 10 from rotating around the lock tongue 21.

[0065] Furthermore, the connection seat 20 is provided on both sides of the cart, and a protruding locking tongue 21 is provided on one of the connection seats 20, and the locking tongue 21 faces the outer sides of the left and right sides of the cart, and the connecting portion 102 of the armrest 10 can be inserted into the connection seat 20 from the side of the cart toward the locking tongue 21, so that the armrest 10 and the connection seat 20 are quickly connected together. Since the first magnet 22 and the second magnet 14 are provided between the armrest 10 and the connection seat 20, the armrest 10 and the connection seat 20 can be automatically attracted and connected when they are close to each other, which can greatly facilitate the use of the user.

[0066] Although the present invention is disclosed through the above embodiments, the scope of the present invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the present invention.

Claims

1. A magnetic connection structure, used for connecting a baby stroller armrest (10), wherein the armrest (10) is used to be detachably connected to a connection seat (20) of the baby stroller, characterized in that: A protruding locking tongue (21) and a first magnet (22) are provided in one of the connecting seat (20) and the armrest (10), and a locking hole (11), a lock release operating member (12), a locking member (13) and a second magnet (14) are provided in the other, wherein the lock release operating member (12) can actuate the locking member (13), the locking member (13) can at least partially extend into the locking hole (11), and the second magnet (14) can attract the first magnet (22); During connection, when the armrest (10) and the connecting seat (20) are brought close to each other in a manner that the locking tongue (21) and the locking hole (11) are opposite to each other, under the magnetic attraction of the first magnet (22) and the second magnet (14), the locking tongue (21) quickly enters the locking hole (11) along the connecting direction Y and engages with the locking member (13), so that the armrest (10) and the connecting seat (20) are quickly connected together; During disassembly, the locking member (13) is driven by the lock release operating member (12) to move and disengage from the locking tongue (21), so that the armrest (10) can be separated from the connecting seat (20).

2. The magnetic connection structure according to claim 1, characterized in that: The locking tongue (21) and the first magnet (22) are provided on the connecting seat (20); The lock hole (11), the lock release operating member (12), the locking member (13) and the second magnet (14) are provided at at least one end of the armrest (10).

3. The magnetic connection structure according to claim 2, characterized in that: The handrail (10) comprises a main body (101) and a connecting portion (102), wherein the connecting portion (102) is connected to an end of the main body (101). The lock hole (11), the lock release operating member (12), the locking member (13) and the second magnet (14) are arranged on the connecting portion (102).

4. The magnetic connection structure according to claim 3, characterized in that: The connecting portion (102) is rotatably connected to the main body (101), and the center of rotation is perpendicular to the connecting direction Y.

5. The magnetic connection structure according to claim 3, characterized in that: A protruding positioning convex portion (1023) is provided on a side surface of the connecting portion (102) on which a locking hole (11) is provided, and a concave positioning groove (23) is provided on a side surface of the connecting seat (20) on which a locking tongue (21) is provided. When the connecting seat (20) and the armrest (10) are connected together, the positioning convex portion (1023) and the positioning groove (23) are in shape engagement in a connection direction Y to prevent the armrest (10) from rotating around the locking tongue (21).

6. The magnetic connection structure according to claim 5, characterized in that: The positioning groove (23) comprises an arc-shaped groove (231) and a rectangular groove (232); the arc-shaped groove (231) is arranged at the periphery of the locking tongue (21), and the rectangular groove (232) is distributed on both sides of the arc-shaped groove (231).

7. The magnetic connection structure according to claim 1, characterized in that: The lock releasing operating member (12) comprises a lock releasing operating portion (121) and an elastic portion (122); the lock releasing operating portion (121) is symmetrically arranged on both sides of the connecting portion (102) and partially exposed outside the connecting portion (102); the elastic portion (122) is connected between the lock releasing operating portions (121); the elastic portion (122) is used to drive the lock releasing operating member (12) to reset; a protruding pushing portion (123) is provided on the lock releasing operating portion (121) or the elastic portion (122); The locking member (13) is arranged separately from the unlocking operating member (12); When the unlocking operation portion (121) is operated, the pushing portion (123) pushes the locking member (13) to disengage the locking member (13) from the locking tongue (21).

8. The magnetic connection structure according to claim 7, characterized in that: A third magnet (15) is provided on the locking member (13), and under the action of the magnetic force between the third magnet (15) and the first magnet (22), the locking member (13) can be moved to engage with the locking tongue (21).

9. The magnetic connection structure according to claim 3, characterized in that: The connecting portion (102) comprises a matching connecting base (1021) and a cover shell (1022); one end of the connecting base (1021) is rotatably connected to the armrest (10); the locking hole (11) is provided on the connecting base (1021); and the locking member (13), the unlocking operating member (12) and the second magnet (14) are provided between the connecting base (1021) and the cover shell (1022).

10. The magnetic connection structure according to claim 9, characterized in that: A protruding support portion (103) is provided at the end of the main body portion (101), the support portions (103) are spaced apart from each other, and a first rotating shaft hole (104) is respectively provided on the support portions (103); One end of the connection base (1021) is arranged between the support parts (103), and a second rotation axis hole (10211) is arranged on the connection base (1021). The connection base (1021) is rotatably connected to the main body (101) via a rotation axis (105) passing through the first rotation axis hole (104) and the second rotation axis hole (10211); The axial direction of the rotating shaft (105) is perpendicular to the connecting direction Y.

11. The magnetic connection structure according to claim 3, characterized in that: One end of the main body (101) is rotatably connected to the connecting seat (20), and one end of the main body (101) is provided with the connecting portion (102) and is detachably connected to the connecting seat (20).

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