Bearing device and child carrier

Abstract

The utility model relates to the technical field of children products, and discloses a bearing device and a children carrier, and the bearing device comprises a bearing seat, a first locking mechanism, a first unlocking mechanism and a second locking mechanism. First connecting parts are arranged on at least two opposite sides of the bearing seat, and the first connecting parts are used for being connected with a supporting device. The first locking mechanism is arranged on the first connecting part and used for locking the first connecting part and the supporting device. The first unlocking mechanism is arranged on the first connecting part and provided with a first position for unlocking the first locking mechanism and a second position for releasing the first locking mechanism. A second locking mechanism is arranged between the first connecting part on at least one side and the first unlocking mechanism, and the second locking mechanism is used for locking the first unlocking mechanism at the first position. Through the arrangement of the second locking mechanism, a user does not need to manually keep the first locking mechanism in an unlocking state all the time, so that the bearing device can be taken down by liberating two hands or a single hand, and the problem that the bearing device is difficult to disassemble is solved.

Description

Technical Field

[0001] This utility model relates to the field of children's products technology, and in particular to a support device and a child carrier. Background Technology

[0002] Carriers designed to support infants or children are typically designed to be detachable from their supporting structures, allowing for easy use of the carrier and convenient storage. Examples of carriers include child seats, infant carriers, and bassinets, while examples of supporting structures include vehicle frames and car seats.

[0003] In existing technologies, the carrier device and the support device are usually locked together by an unlockable locking structure. However, during the unlocking operation, both hands must be pressed simultaneously on the unlock buttons on both sides of the carrier device to unlock both locking structures. Furthermore, both hands must remain pressed on the unlock buttons to detach the carrier device from the support device. Because it is difficult to remove the carrier device after pressing the unlock buttons, the disassembly of the carrier device and support device is quite difficult, resulting in a poor user experience.

[0004] Therefore, there is an urgent need for a support device and a child vehicle to solve the above problems. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a support device and a child carrier that can simplify the disassembly steps of the support device and make the disassembly operation of the support device simpler and less labor-intensive.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On the one hand, a carrying device is provided, comprising:

[0008] A support base, wherein at least two opposite sides of the support base are provided with first connecting portions, the first connecting portions being configured to connect to a support device of a child vehicle;

[0009] A first locking mechanism is disposed at the first connecting portion, and the first locking mechanism is used to lock the first connecting portion and the support device;

[0010] A first unlocking mechanism is disposed on the first connecting portion, and the first unlocking mechanism has a first position for unlocking the first locking mechanism and a second position for releasing the first locking mechanism;

[0011] The second locking mechanism is provided between the first connecting portion and the first unlocking mechanism on at least one side, and the second locking mechanism is used to lock the first unlocking mechanism in the first position.

[0012] As an optional embodiment of the bearing device of this utility model, the first connecting part has a insertion cavity, and the support device is provided with a second connecting part, which can be inserted into or detached from the insertion cavity; the first locking mechanism includes a locking hook rotatably disposed in the insertion cavity, and a limiting block is provided on the second connecting part, wherein the locking hook can hook onto the limiting block to lock the first connecting part and the second connecting part;

[0013] The first unlocking mechanism includes a first unlocking member movably disposed in the insertion cavity. The first unlocking member has a first engaging portion, and the locking hook has a second engaging portion. When the first unlocking member moves relative to the insertion cavity, the first engaging portion engages with the second engaging portion to drive the locking hook to rotate in a direction disengaging from the limiting block; or...

[0014] The first unlocking mechanism includes a first unlocking component connected to the lock hook, which, when driven to move toward the first position, causes the lock hook to rotate in the direction of disengaging from the limiting block.

[0015] As an optional embodiment of the bearing device of this utility model, the first mating part has a first mating surface, the second mating part has a second mating surface, and when the first unlocking member moves, the first mating surface can slide and engage with the second mating surface to drive the lock hook to rotate.

[0016] As an optional embodiment of the bearing device of this utility model, the locking hook is provided with an elastic arm, the end of the elastic arm away from the locking hook abutting against the inner wall of the insertion cavity, and the locking hook can rotate in the direction of hooking the limiting block under the elastic force of the elastic arm; or,

[0017] An elastic reset member is provided between the locking hook and the inner wall of the insertion cavity, and the locking hook can rotate in the direction of hooking the limiting block under the elastic force of the elastic reset member.

[0018] As an optional embodiment of the bearing device of this utility model, the first unlocking mechanism includes a first unlocking member movably disposed on the first connecting portion along a first direction, and the second locking mechanism includes a first locking member disposed on the first connecting portion and a second locking member disposed on the first unlocking member. When the first unlocking mechanism moves to the first position, the first locking member and the second locking member cooperate to lock the first unlocking mechanism in the first position.

[0019] As an optional embodiment of the bearing device of this utility model, one of the first locking member and the second locking member is a snap-fit ​​member, and the other is a limiting hole;

[0020] The latching member includes an elastic hook disposed on the first connecting portion, and the limiting hole includes a first limiting hole disposed on the first unlocking member. During the movement of the first unlocking member along the first direction, the elastic hook can engage with the first limiting hole under its own elastic force; or...

[0021] The latching member includes a first locking pin movably disposed on the first unlocking member along a second direction; the limiting hole includes a second limiting hole disposed on the first connecting portion; during the movement of the first unlocking member along the first direction, the first locking pin can be driven to insert into the second limiting hole along the second direction; the first direction and the second direction are arranged at an angle; or...

[0022] The latching member includes a second locking pin movably disposed on the first unlocking member, and the limiting hole includes a limiting hole three disposed on the first connecting part. During the process of the first unlocking member moving toward the first position, the second locking pin can be engaged into the limiting hole three.

[0023] As an optional embodiment of the bearing device of this utility model, the bearing device further includes a second unlocking mechanism connected to the first unlocking member, and the second unlocking mechanism is movable relative to the first unlocking member. When the second unlocking mechanism moves relative to the first unlocking member, it can drive the first locking member to cooperate with or disengage from the second locking member.

[0024] Alternatively, the support device may be provided with a second unlocking mechanism for driving the first locking member to disengage from the second locking member.

[0025] As an optional embodiment of the bearing device of this utility model, the second unlocking mechanism includes:

[0026] A trigger is movably disposed on the first unlocking member along a first direction, and the trigger is provided with a first guide portion;

[0027] The second unlocking member is movably disposed on the first unlocking member along the second direction. The second unlocking member is provided with a second guide portion. When the trigger member moves relative to the first unlocking member along the first direction, the first guide portion and the second guide portion cooperate to drive the second unlocking member to move along the second direction and drive the first locking member to cooperate with or disengage from the second locking member.

[0028] A first elastic element is constrained between the first unlocking element and the triggering element, and the triggering element can move relative to the first unlocking element in a first direction under the elastic force of the first elastic element.

[0029] The second elastic element is constrained between the first unlocking element and the second unlocking element. The second unlocking element can move along the second direction under the elastic force of the second elastic element to drive the first locking element to disengage from the second locking element.

[0030] The elastic force of the second elastic element is less than that of the first elastic element.

[0031] As an optional embodiment of the bearing device of this utility model, the second unlocking mechanism includes a third unlocking member movably disposed on the first unlocking member along a first direction, the third unlocking member being provided with a third guide portion, the second locking member being movably disposed on the first unlocking member along a second direction, and the second locking member being provided with a fourth guide portion.

[0032] When the third unlocking member moves relative to the first unlocking member in the first direction, the third guide portion cooperates with the fourth guide portion to drive the second locking member to cooperate with or disengage from the first locking member in the second direction;

[0033] The second unlocking mechanism further includes a third elastic element, which is constrained between the first unlocking element and the third unlocking element. The third unlocking element can move relative to the first unlocking element in a first direction under the elastic force of the third elastic element.

[0034] The second locking mechanism further includes a fourth elastic element, which is constrained between the first unlocking element and the second locking element. The second locking element can move along the second direction to cooperate with the second locking element under the elastic force of the fourth elastic element.

[0035] The elastic force of the fourth elastic element is less than that of the third elastic element.

[0036] As an optional embodiment of the bearing device of this utility model, the first connecting part has a insertion cavity, and the support device is provided with a second connecting part. The second connecting part can be inserted into or detached from the insertion cavity. When the second connecting part detaches from the insertion cavity, the second unlocking mechanism cooperates with the first locking member or the second locking member to drive the first locking member to detach from the second locking member.

[0037] The first unlocking component is provided with a sliding cavity communicating with the insertion cavity, and the second unlocking mechanism is slidably disposed in the sliding cavity along the first direction;

[0038] The second connecting part is located at one end of the insertion cavity and can extend into the sliding cavity and abut against the second unlocking mechanism. When the second connecting part is disengaged from the insertion cavity, the unlocking mechanism moves relative to the first unlocking member to drive the first locking member to disengage from the second locking member.

[0039] On the other hand, a child vehicle is provided, including a support device and a carrying device as described above, wherein the carrying device is detachably mounted on the support device.

[0040] The beneficial effects of this utility model are as follows:

[0041] The carrier and child support provided by this utility model, by setting a second locking mechanism between the first connecting part and the first unlocking mechanism on at least one side, allows the user to remove the carrier from the support device simply by operating the first unlocking mechanism to unlock the first locking mechanism. At this time, the second locking mechanism can lock the first unlocking mechanism in the first unlocked position. That is, the first locking mechanism remains in the unlocked state, and the first connecting part is unlocked from the support device. Therefore, the user does not need to manually keep the first locking mechanism in the unlocked state all the time, and can remove the carrier from the support device with both hands or one hand, solving the problem of difficult disassembly of existing carriers and support devices and improving the user experience. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0043] Figure 1 This is a structural schematic diagram of the bearing device provided in a specific embodiment of this utility model;

[0044] Figure 2 This is a first cross-sectional view of the first unlocking mechanism in the second position provided in Embodiment 1;

[0045] Figure 3 This is a second cross-sectional view of the first unlocking mechanism in the second position provided in Embodiment 1;

[0046] Figure 4 This is a schematic diagram of the structure of the first unlocking mechanism and the first locking mechanism provided in Embodiment 1;

[0047] Figure 5 This is a schematic diagram of the structure of the second unlocking mechanism provided in Embodiment 1;

[0048] Figure 6 This is a first cross-sectional view of the first unlocking mechanism in the first position provided in Embodiment 1;

[0049] Figure 7 This is a second cross-sectional view of the first unlocking mechanism in the first position provided in Embodiment 1;

[0050] Figure 8 This is the process of the second unlocking mechanism unlocking the first unlocking mechanism provided in Embodiment 1. Figure 1 ;

[0051] Figure 9 This is the process of the second unlocking mechanism unlocking the first unlocking mechanism provided in Embodiment 1. Figure 2 ;

[0052] Figure 10 This is a first cross-sectional view of the first unlocking mechanism restoring to the second position provided in Embodiment 1;

[0053] Figure 11 This is a second cross-sectional view of the first unlocking mechanism in Embodiment 1 restoring to the second position;

[0054] Figure 12 This is a first cross-sectional view of the first unlocking mechanism in the second position provided in Embodiment 2;

[0055] Figure 13 This is a second cross-sectional view of the first unlocking mechanism in the second position provided in Embodiment 2;

[0056] Figure 14 This is a first cross-sectional view of the first unlocking mechanism in the first position provided in Embodiment 2;

[0057] Figure 15 This is a second cross-sectional view of the first unlocking mechanism in the first position provided in Embodiment 2;

[0058] Figure 16 This is a schematic diagram of the first structure of the first unlocking mechanism and the first locking mechanism provided in Embodiment 2;

[0059] Figure 17 This is a second structural schematic diagram of the first unlocking mechanism and the first locking mechanism provided in Embodiment 2;

[0060] Figure 18 This is a schematic diagram of the first structure of the second locking mechanism and the second unlocking mechanism provided in Embodiment 2;

[0061] Figure 19 This is a schematic diagram of the second structure of the second locking mechanism and the second unlocking mechanism provided in Embodiment 2;

[0062] Figure 20This is a diagram illustrating the process of the second unlocking mechanism unlocking the first unlocking mechanism, as provided in Embodiment 2.

[0063] Figure 21 This is a first cross-sectional view of the first unlocking mechanism restoring to the second position provided in Embodiment 2;

[0064] Figure 22 This is a second cross-sectional view of the first unlocking mechanism restoring to the second position provided in Embodiment 2;

[0065] Figure 23 This is a schematic diagram of the first locking mechanism provided in Embodiment 3 in a locked state;

[0066] Figure 24 This is a schematic diagram of the first locking mechanism provided in Embodiment 3 in the unlocked state;

[0067] Figure 25 This is a schematic diagram of the second connecting part detaching from the first connecting part provided in Embodiment 3;

[0068] Figure 26 This is a first cross-sectional schematic diagram of the first locking mechanism in the locked state provided in Embodiment 4;

[0069] Figure 27 This is a second cross-sectional schematic diagram of the first locking mechanism in the locked state provided in Embodiment 4;

[0070] Figure 28 This is a first cross-sectional schematic diagram of the first locking mechanism in the unlocked state provided in Embodiment 4;

[0071] Figure 29 This is a second cross-sectional schematic diagram of the first locking mechanism in the unlocked state provided in Embodiment 4;

[0072] Figure 30 This is a schematic diagram of the first cross section when the second connecting part is detached from the first connecting part, as provided in Embodiment 4;

[0073] Figure 31 This is a schematic diagram of the second cross section when the second connecting part is detached from the first connecting part, as provided in Embodiment 4.

[0074] In the picture:

[0075] 1-Support base; 2-First locking mechanism; 4-Second locking mechanism; 5-Second unlocking mechanism; 6-Handle;

[0076] 11-First connecting part; 111-Insertion cavity; 112-Securing hole two; 113-Securing hole three;

[0077] 21-Locking hook; 211-Second mating part; 2111-Second mating surface; 22-Elastic arm; 23-Elastic reset element;

[0078] 31 - First unlocking component;

[0079] 311-First mating part; 3111-First mating surface; 312-Limiting hole one; 313-Sliding cavity; 314-Limiting hole four; 315-First limiting groove; 316-Second limiting groove;

[0080] 41-Elastic hook; 42-First locking pin; 421-Fourth guide surface; 422-Eighth positioning protrusion;

[0081] 43-Fourth elastic element; 44-Second locking pin; 45-Fifth elastic element; 46-Swinging element;

[0082] 51-Trigger element; 52-Second unlocking element; 53-First elastic element; 54-Second elastic element;

[0083] 511-First guide surface; 512-First abutment surface; 513-Second positioning protrusion; 514-First sliding groove;

[0084] 521 - Second guide surface; 522 - Fourth positioning protrusion;

[0085] 55 - Third unlocking component; 56 - Third elastic component; 57 - Fourth unlocking component; 58 - Fifth unlocking component;

[0086] 551 - Third guide surface; 552 - Second abutment surface; 553 - Sixth positioning protrusion; 554 - Second slide groove;

[0087] 5511 - First positioning plane; 5512 - Guide slope; 5513 - Second positioning plane;

[0088] 100 - Second connecting part; 101 - Limiting block. Detailed Implementation

[0089] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0090] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0091] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0092] Example 1

[0093] like Figures 1 to 11 As shown, this embodiment provides a support device that simplifies the disassembly process, making disassembly easier and less strenuous, and providing a better user experience. The support device includes a support base 1, a first locking mechanism 2, a first unlocking mechanism, and a second locking mechanism 4.

[0094] The carrier 1 has a first connecting portion 11 on at least two opposite sides, which is configured to connect to a support device of the child carrier. A first locking mechanism 2 is disposed on the first connecting portion 11 and is used to lock the first connecting portion 11 and the support device. A first unlocking mechanism is disposed on the first connecting portion 11 and has a first position for unlocking the first locking mechanism 2 and a second position for releasing the first locking mechanism 2. A second locking mechanism 4 is disposed between the first connecting portion 11 and the first unlocking mechanism on at least one side and is used to lock the first unlocking mechanism in the first position.

[0095] That is, a second locking mechanism 4 can be provided between the two first connecting parts 11 and the two first unlocking mechanisms, so that after the first locking mechanism 2 is unlocked, the first connecting parts 11 on both sides of the support seat 1 and the support device can be kept in the unlocked state at the same time, making it easier to remove the support device.

[0096] Of course, a second locking mechanism 4 can also be provided between one of the first connecting parts 11 and the first unlocking mechanism, so that the first locking mechanism 2 on one side of the support seat 1 remains in the locked position after being unlocked, and the user can manually control the first unlocking mechanism 2 on the other side of the support seat 1 with one hand to keep the first locking mechanism 2 in the unlocked position, while the user can lift the support seat 1 from the base with the other hand, which can also simplify the disassembly steps of the support device and make disassembly and assembly more convenient.

[0097] In addition, a second locking mechanism 4 is provided only on the first unlocking mechanism on one side of the carrier 1. When the first locking mechanism on one side of the carrier 1 is unlocked, the other side of the carrier 1 remains locked, making it difficult for the carrier 1 (such as a basket) to fall off the base (such as a frame), thus improving the safety of using child vehicles.

[0098] The support device provided in this embodiment, by providing a second locking mechanism 4 between the first connecting portion 11 and the first unlocking mechanism on at least one side, allows the user to remove the support seat 1 from the support device simply by operating the first unlocking mechanism to unlock the first locking mechanism 2. At this time, the second locking mechanism 4 can lock the first unlocking mechanism in the first position where the first locking mechanism 2 is unlocked. That is, the first locking mechanism 2 remains in the unlocked state, and the first connecting portion 11 is unlocked from the support device. Therefore, the user does not need to manually keep the first locking mechanism 2 in the unlocked state all the time, and can remove the support seat 1 from the support device with both hands or one hand, solving the problem of difficult disassembly of the existing support device and improving the user experience.

[0099] Optionally, the aforementioned support device can be the frame of a stroller or trailer, a fixed seat for the fixed support device, or a car seat, etc. The support device can be an infant carrier, bassinet, child seat, etc.

[0100] Optionally, see Figure 1 The carrying device also includes a handle 6, both ends of which are rotatably connected to the support base 1 via the first connecting part 11. The support base 1 can be lifted by the handle 6, making it convenient for the user to move the carrying device. By adjusting the rotation angle of the handle 6, the handle 6 can be folded up or unfolded, making it easier to store and use.

[0101] Optionally, see Figure 2 , Figure 6 , Figure 8 and Figure 10 The first connecting part 11 has a insertion cavity 111, and the support device is provided with a second connecting part 100, which can be inserted into or detached from the insertion cavity 111. (See reference...) Figure 3 , Figure 4 and Figure 7The first locking mechanism 2 includes a locking hook 21 rotatably disposed in the insertion cavity 111, and a limiting block 101 is provided on the second connecting part 100. The locking hook 21 can hook onto the limiting block 101 to lock the first connecting part 11 and the second connecting part 100.

[0102] like Figure 2 and Figure 3 As shown, after the second connecting part 100 is inserted into the insertion cavity 111, the locking hook 21 is engaged with the limiting block 101, and the first connecting part 11 and the second connecting part 100 are in a locked state. At this time, the bearing device is locked onto the support device. Figure 6 and Figure 7 As shown, when the first unlocking mechanism is operated to unlock the first locking mechanism 2, the locking hook 21 disengages from the limiting block 101, and at this time the second connecting part 100 can move out relative to the insertion cavity 111 (as shown). Figure 8 and Figure 9 (As shown), so that the bearing device is disengaged from the support device. When the second connecting part 100 is inserted into the insertion cavity 111 again, the locking hook 21 can hook the limiting block 101 again, so that the second connecting part 100 and the first connecting part 11 are locked again.

[0103] Optionally, see Figure 2 , Figure 3 , Figure 7 and Figure 8 The first unlocking mechanism includes a first unlocking member 31 movably disposed in the insertion cavity 111 along a first direction, see reference. Figure 4 The first unlocking member 31 is provided with a first engaging part 311, and the locking hook 21 is provided with a second engaging part 211. When the first unlocking member 31 moves along a first direction, the first engaging part 311 and the second engaging part 211 engage to drive the locking hook 21 to rotate in the direction of disengaging from the limiting block 101. The provision of the first engaging part 311 and the second engaging part 211 makes the unlocking operation simple and easy; only the first unlocking member 31 needs to be moved along the first direction to unlock the locking hook 21. In this embodiment, the first direction is... Figure 2 and Figure 3 Pressing down on the first unlocking component 31 in the up-down direction will unlock the lock hook 21.

[0104] Optionally, see Figure 3 and Figure 4 The first mating part 311 has a first mating surface 3111, and the second mating part 211 has a second mating surface 2111. When the first unlocking member 31 moves, the first mating surface 3111 can slide and engage with the second mating surface 2111 to drive the locking hook 21 to rotate. Figure 2 and Figure 3As shown, when the locking hook 21 is in the locked state, the first mating part 311 is not in contact with the second mating part 211. During the process of driving the first unlocking member 31 to move down, after the first mating surface 3111 comes into contact with the second mating surface 2111, when the first unlocking member 31 continues to move down, the first mating surface 3111 slides into contact with the second mating surface 2111. The first mating surface 3111 generates a pushing force on the second mating surface 2111, thereby driving the locking hook 21 to rotate around its rotation axis.

[0105] In this embodiment, both the first mating surface 3111 and the second mating surface 2111 are arc-shaped surfaces, allowing the locking hook 21 to rotate along a preset trajectory. For example... Figure 3 As shown, in the initial state, the first unlocking member 31 is in the second position, the locking hook 21 is in the locked state, and the second mating part 211 is located at the lower end of the first mating surface 3111. During the pressing down of the first unlocking member 31, the first mating surface 3111 and the second mating surface 2111 slide into contact, and simultaneously the second mating part 211 moves upward relative to the first mating surface 3111, as shown... Figure 7 As shown, when the first unlocking member 31 moves to the first position, the second mating part 211 moves to the upper end of the first mating surface 3111, and the locking hook 21 rotates to the unlocked state.

[0106] In other embodiments, the first mating surface 3111 and the second mating surface 2111 can also be designed as inclined surfaces, as long as they can drive the locking hook 21 to rotate around a preset trajectory.

[0107] Optionally, see Figure 2 , Figure 3 and Figure 4 The first connecting part 11 is provided with an opening (not shown) communicating with the insertion cavity 111. The first unlocking member 31 can extend at least partially through the opening, which facilitates the user to operate the first unlocking member 31 to drive the lock hook 21 to unlock.

[0108] Optionally, see Figure 3 , Figure 4 and Figure 7 The locking hook 21 is provided with an elastic arm 22. The end of the elastic arm 22 away from the locking hook 21 abuts against the inner wall of the insertion cavity 111. The locking hook 21 can rotate towards the hook-locking limit block 101 under the elastic force of the elastic arm 22. During the unlocking process where the first unlocking component 31 drives the locking hook 21 to rotate and unlock, the elastic arm 22 is compressed and undergoes elastic deformation, from Figure 3 The morphological changes shown are Figure 7 As shown, when the force exerted by the first unlocking member 31 on the locking hook 21 decreases or disappears, the elastic arm 22 releases elastic potential energy, thereby driving the locking hook 21 to rotate in the opposite direction and return to its original position, as indicated. Figure 11The state shown is such that the elastic arm 22 allows the locking hook 21 to automatically return to its original position, facilitating the next locking of the first connecting part 11 and the second connecting part 100.

[0109] For example, the elastic arm 22 is an arc-shaped plate that is suspended above the locking hook 21. The arc-shaped convex surface of the arc-shaped plate faces the hook of the locking hook 21, so as to ensure that the arc-shaped plate is squeezed and accumulates elastic potential energy when the locking hook 21 is unlocked.

[0110] Furthermore, the locking hook 21 is rotatably connected to the first connecting part 11 via a rotating shaft. The rotating shaft can be set on the locking hook 21. A rotating hole or rotating groove is provided on the inner wall of the insertion cavity 111. The rotating shaft is inserted into the rotating hole (rotating groove) and rotates with the rotating hole (rotating groove) to realize the rotatable connection between the locking hook 21 and the first connecting part 11.

[0111] Optionally, see Figure 2 and Figure 6 The second locking mechanism 4 includes a first locking member disposed on the first connecting portion 11 and a second locking member disposed on the first unlocking member 31. When the first unlocking mechanism moves to the first position, the first locking member and the second locking member cooperate to lock the first unlocking mechanism in the first position. That is, when the second locking member moves with the first unlocking member 31 to engage with the first locking member, the first unlocking member 31 moves to the first position and is locked in the first position, so that the locking hook 21 of the first locking mechanism 2 can be temporarily kept in the unlocked state, making it convenient to remove the supporting device.

[0112] Optionally, one of the first locking member and the second locking member is a snap-fit ​​member, and the other is a limiting hole. In this embodiment, see [reference needed]. Figure 2 and Figure 6 The snap-fit ​​component includes an elastic snap hook 41 disposed on the first connecting portion 11, and a limiting hole includes a limiting hole 312 disposed on the first unlocking component 31. The elastic snap hook 41 can snap into the limiting hole 312 under its own elastic force. Figure 2 As shown, when the first unlocking member 31 is in the second position, the elastic hook 41 is deformed by the first unlocking member 31 and is in the unlocked state. During the downward movement of the first unlocking member 31, when the limiting hole 312 moves with the first unlocking member 31 to align with the hook of the elastic hook 41, the squeezing force of the first unlocking member 31 on the elastic hook 41 disappears, and the elastic hook 41 then engages with the limiting hole 312 under its own elastic force, thereby locking the first unlocking member 31 in the first position and keeping the locking hook 21 in the unlocked state. Figure 6 and Figure 7 As shown.

[0113] For example, the elastic hook 41 includes a connected elastic cantilever and a hook. The side wall of the insertion cavity 111 of the first connecting part 11 is provided with a receiving groove. The end of the elastic cantilever away from the hook is fixedly connected to the top wall of the receiving groove (see reference). Figure 2 and Figure 6 (in the orientation of the hook), when the hook is subjected to compressive force, the elastic cantilever undergoes elastic deformation.

[0114] Optionally, see Figure 2 and Figure 5 The supporting device also includes a second unlocking mechanism 5 connected to the first unlocking member 31, and the second unlocking mechanism 5 is movable relative to the first unlocking member 31. When the second unlocking mechanism 5 moves relative to the first unlocking member 31, it can drive the first locking member to cooperate with or disengage from the second locking member, so as to realize the locking and unlocking of the first unlocking mechanism.

[0115] Optionally, the second unlocking mechanism 5 includes a trigger 51 and a second unlocking member 52. The trigger 51 is movably disposed on the first unlocking member 31 along a first direction and has a first guide portion. The second unlocking member 52 is movably disposed on the first unlocking member 31 along a second direction and has a second guide portion. When the trigger 51 moves relative to the first unlocking member 31 along the first direction, the first guide portion and the second guide portion cooperate to drive the second unlocking member 52 to move along the second direction and drive the first locking member to engage or disengage from the second locking member; the first direction and the second direction are set at an angle. In this embodiment, the first direction is... Figure 2 and Figure 3 The top and bottom directions, the second direction is Figure 2 The left and right directions. Since the second unlocking member 52 can only move in the first direction along with the first unlocking member 31, when the triggering member 51 moves relative to the first unlocking member 31 in the first direction, the triggering member 51 also moves relative to the second unlocking member 52 in the first direction. During this process, the interaction between the first guide part and the second guide part can drive the second unlocking member 52 to move in the second direction, thereby driving the first locking member to disengage from the second locking member, thus unlocking the first locking member's limitation on the first unlocking member 31.

[0116] In this embodiment, see Figure 5 The first guide portion has a first guide surface 511 and the second guide portion has a second guide surface 521. When the trigger member 51 moves relative to the first unlocking member 31, the first guide surface 511 and the second guide surface 521 slide together. The first guide surface 511 can generate a pushing force on the second guide surface 521 to drive the second unlocking member 52 to move along the second direction.

[0117] For example, the first guide surface 511 is an inclined surface and the second guide surface 521 is an arc surface, which can reduce the resistance of the sliding contact between the two and make the movement of the second unlocking member 52 smoother. In other embodiments, both the first guide surface 511 and the second guide surface 521 can be designed as arc surfaces or inclined surfaces.

[0118] Further, see Figure 2 , Figure 4 , Figure 5 and Figure 6 The second unlocking mechanism 5 further includes a first elastic element 53 and a second elastic element 54. The first elastic element 53 extends along a first direction and is constrained between the first unlocking member 31 and the trigger member 51. The trigger member 51 can move relative to the first unlocking member 31 along the first direction under the elastic force of the first elastic element 53. The second elastic element 54 extends along a second direction and is constrained between the first unlocking member 31 and the second unlocking member 52. The second unlocking member 52 can move along the second direction under the elastic force of the second elastic element 54 to drive the first locking member to disengage from the second locking member. The first elastic element 53 allows the trigger member 51 to automatically move relative to the first unlocking member 31 along the first direction, thereby allowing the second unlocking member 52 to automatically push the elastic hook 41 of the first locking member away from the limiting hole 312 under the elastic force of the second elastic element 54, thus automatically unlocking the first unlocking member 31.

[0119] Furthermore, the elastic force of the second elastic member 54 is less than that of the first elastic member 53. With this configuration, after the second connecting part 100 disengages from the insertion cavity 111, the first elastic member 53 can have sufficient elastic force to drive the trigger member 51 to move downward, so that the second elastic member 54 drives the second unlocking member 52 to insert into the limiting hole 312 and push the elastic hook 41 out of the limiting hole 312.

[0120] Optionally, see Figure 6 and Figure 10The first connecting part 11 has a insertion cavity 111, and the support device is provided with a second connecting part 100. The second connecting part 100 can be inserted into or detached from the insertion cavity 111. When the second connecting part 100 detaches from the insertion cavity 111, the second unlocking mechanism 5 cooperates with the first locking member or the second locking member to drive the first locking member to disengage from the second locking member. The first unlocking member 31 is provided with a sliding cavity 313 communicating with the insertion cavity 111, and the second unlocking mechanism 5 is slidably disposed in the sliding cavity 313 along a first direction. One end of the second connecting part 100 located in the insertion cavity 111 can extend into the sliding cavity 313 and abut against the second unlocking mechanism 5. When the second connecting part 100 detaches from the insertion cavity 111, the second unlocking mechanism 5 moves relative to the first unlocking member 31 to drive the first locking member to disengage from the second locking member. In this embodiment, the trigger member 51 is slidably disposed in the sliding cavity 313 along the first direction, and the second connecting part 100 extends into the sliding cavity 313 and can abut against the trigger member 51, so that the compression limit of the first elastic member 53 is located between the first unlocking member 31 and the trigger member 51. When the second connecting part 100 disengages from the insertion cavity 111, the trigger member 51 moves relative to the first unlocking member 31 under the elastic force of the first elastic member 53.

[0121] Specifically, such as Figure 2 As shown, in the initial state, the first unlocking member 31 is in the second position, and the end of the second unlocking member 52 is located in the limiting hole 312. When the first unlocking member 31 is pressed down, the first unlocking member 31 drives the trigger member 51 to move down together through the first elastic member 53, and at the same time, the second unlocking member 52 moves down with the first unlocking member 31. After moving down a certain distance, the trigger member 51 abuts against the end of the second connecting part 100. At this time, when the first unlocking member 31 is pressed down again, the trigger member 51 does not move, and the first elastic member 53 is compressed. Since the second unlocking member 52 continues to move down with the first unlocking member 31, before the first unlocking member 31 moves to the first position, the first guide surface 511 of the trigger member 51 slides with the second guide surface 521 of the second unlocking member 52, thereby pushing the second unlocking member 52 to move to the right in the second direction (refer to...). Figure 2 and Figure 6 (position in the middle) and compress the second elastic element 54; such as Figure 6 As shown, when the first unlocking member 31 moves to the first position, the second unlocking member 52 disengages from the limiting hole 312, and the elastic hook 41 engages with the limiting hole 312, thus locking the first unlocking member 31. During this process, the elastic arm 22 on the locking hook 21 is compressed and accumulates elastic potential energy.

[0122] like Figure 8 and Figure 9As shown, at the instant the second connecting part 100 disengages from the insertion cavity 111, the trigger 51 moves downward relative to the first unlocking part 31 under the elastic force of the first elastic member 53. During this process, the first guide surface 511 of the trigger 51 slides and engages with the second guide surface 521 of the second unlocking part 52. The pushing force of the first guide surface 511 on the second guide surface 521 gradually decreases. At the same time, the second elastic member 54 releases elastic potential energy to drive the second unlocking part 52 to move to the left along the second direction and insert into the limiting hole 312, and push the elastic hook 41 to disengage from the limiting hole 312, thus completing the unlocking of the first unlocking part 31.

[0123] like Figure 10 and Figure 11 As shown, after the second connecting part 100 disengages from the insertion cavity 111, the elastic arm 22 on the locking hook 21 releases its elastic potential energy, causing the locking hook 21 to rotate towards the locked position. During this process, the second engaging part 211 of the locking hook 21 slides into contact with the first engaging part 311 of the first unlocking member 31, thereby pushing the first unlocking member 31 back from the first position to the second position along the first direction. At the same time, the first unlocking member 31 drives the trigger member 51 and the second unlocking member 52 to move upward and return to their original positions. Exemplarily, the first elastic member 53 and the second elastic member 54 are both springs.

[0124] In this embodiment, see Figure 6 and Figure 8 The bottom of the trigger 51 is provided with a first abutting surface 512, and the end of the second connecting part 100 abuts against the first abutting surface 512.

[0125] Furthermore, the first unlocking component 31 is provided with a first positioning protrusion, see reference. Figure 5 The trigger member 51 is provided with a second positioning protrusion 513. One end of the first elastic member 53 is sleeved on the first positioning protrusion and the other end is sleeved on the second positioning protrusion 513. This ensures that the first elastic member 53 is securely installed between the first unlocking member 31 and the trigger member 51, and ensures that the first elastic member 53 always extends and retracts in the first direction.

[0126] Further, see Figure 5 The trigger member 51 is provided with a first groove 514 extending along a first direction. One end of the second unlocking member 52 is slidably inserted into the first groove 514. The first guide surface 511 is arranged side by side with the first groove 514, so that when the trigger member 51 moves relative to the first unlocking member 31 along the first direction, the first guide surface 511 and the second guide surface 521 slide in engagement, while the second unlocking member 52 moves within the first groove 514. (See reference...) Figure 2 and Figure 4The first unlocking member 31 is provided with a first limiting groove 315 extending along the second direction, and a third positioning protrusion is provided within the first limiting groove 315. The second unlocking member 52 is provided with a fourth positioning protrusion 522. One end of the second elastic member 54 extends into the first limiting groove 315 and is sleeved on the third positioning protrusion, while the other end of the second elastic member 54 is sleeved on the fourth positioning protrusion 522. The arrangement of the first limiting groove 315, the third positioning protrusion, and the fourth positioning protrusion 522 ensures that the second elastic member 54 can only extend and retract in the second direction, guaranteeing that the second unlocking member 52 always moves along the second direction.

[0127] Example 2

[0128] This embodiment provides a supporting device, which differs from Embodiment 1 in that:

[0129] See Figure 1 and Figure 12 The supporting device includes a support base 1, a first locking mechanism 2, a first unlocking mechanism, and a second locking mechanism 4. (See attached image for details.) Figure 12 and Figure 13 The support base 1 has a first connecting portion 11 on at least two opposite sides, and the first connecting portion 11 is configured to connect to a support device of the child vehicle. A first locking mechanism 2 is disposed on the first connecting portion 11 and is used to lock the first connecting portion 11 and the support device. A first unlocking mechanism is disposed on the first connecting portion 11 and has a first position for unlocking the first locking mechanism 2 and a second position for releasing the first locking mechanism 2. A second locking mechanism 4 is disposed between the first connecting portion 11 and the first unlocking mechanism on at least one side and is used to lock the first unlocking mechanism in the first position.

[0130] That is, a second locking mechanism 4 can be provided between both first connecting parts 11 and both first unlocking mechanisms, so that after the first locking mechanism 2 is unlocked, the first connecting parts 11 on both sides of the support seat 1 and the support device can be kept in the unlocked state at the same time, making it easier to remove the support device. Alternatively, a second locking mechanism 4 can be provided between only one of the first connecting parts 11 and the corresponding first unlocking mechanism, so that after the first locking mechanism 2 on one side of the support seat 1 is unlocked, it remains in the locked position, and the user can manually control the first unlocking mechanism 2 on the other side of the support seat 1 with one hand to keep the first locking mechanism 2 in the unlocked position, while the user's other hand can lift the support seat 1 from the base, which also simplifies the disassembly steps of the support device and makes disassembly and assembly more convenient.

[0131] Optionally, see Figure 12 , Figure 13 , Figure 14 and Figure 15The first unlocking mechanism includes a first unlocking member 31 movably disposed in the insertion cavity 111 along a first direction. The second locking mechanism 4 includes a first locking member disposed in the first connecting portion 11 and a second locking member disposed on the first unlocking member 31. When the first unlocking mechanism moves to the first position, the first locking member and the second locking member cooperate to lock the first unlocking mechanism in the first position. That is, while the first unlocking member 31 is moved along the first direction, the second locking member can move with the first unlocking member 31 to engage with the first locking member, thereby locking the first unlocking member 31 in the first position of unlocking the first locking mechanism 2, so that the locking hook 21 of the first locking mechanism 2 is temporarily kept in the unlocked state, making it convenient to remove the supporting device.

[0132] In this embodiment, the first direction is Figure 12 and Figure 13 The top and bottom directions, the second direction is Figure 12 The left and right directions in the middle.

[0133] Optionally, one of the first locking member and the second locking member is a snap-fit ​​member, and the other is a limiting hole. In this embodiment, see [reference needed]. Figure 12 and Figure 14 The latching member includes a first locking pin 42 movably disposed on the first unlocking member 31 along a second direction, and a limiting hole includes a second limiting hole 112 disposed on the first connecting portion 11. During the movement of the first unlocking member 31 along the first direction, the first locking pin 42 can be driven to insert into the second limiting hole 112 along the second direction. Figure 12 As shown, in the initial state, the first unlocking member 31 is in the second position, and the first locking pin 42 is not inserted into the second limiting hole 112. During the downward movement of the first unlocking member 31, the first locking pin 42 moves with the first unlocking member 31 until it aligns with the second limiting hole 112. Then, the first locking pin 42 moves along the second direction and inserts into the second limiting hole 112 to lock the first unlocking member 31 in the first position, keeping the locking hook 21 in the unlocked state. Figure 14 and Figure 15 As shown.

[0134] Optionally, see Figure 12 and Figure 17 The first unlocking component 31 is provided with a limiting hole 4 314, and the first locking pin 42 is restricted in the first direction by the limiting hole 4 314 and can pass through the limiting hole 4 314 and engage with the limiting hole 2 112. Figure 12 As shown, when the first unlocking member 31 is not pressed, the locking hook 21 is in a locked state, and the first locking pin 42 is engaged in the limiting hole 314 to prevent the first locking pin 42 from shifting relative to the first unlocking member 31 in the first direction. Figure 14 and Figure 17As shown, after the first unlocking member 31 is pressed and moved to the first position, the first locking pin 42 passes through the limiting hole 314 and is engaged in the limiting hole 112 to restrict the first unlocking member 31 from moving in the first direction, thereby keeping the locking hook 21 in the unlocked state.

[0135] Optionally, the supporting device further includes a second unlocking mechanism 5 connected to the first unlocking member 31, and the second unlocking mechanism 5 is movable relative to the first unlocking member 31. When the second unlocking mechanism 5 moves relative to the first unlocking member 31, it can drive the first locking member to cooperate with or disengage from the second locking member, so as to lock and unlock the first unlocking mechanism.

[0136] Optionally, see Figure 12 , Figure 14 , Figure 18 and Figure 19 The second unlocking mechanism 5 includes a third unlocking member 55 movably disposed on the first unlocking member 31 along a first direction, and a third guide portion disposed on the third unlocking member 55. A second locking member is movably disposed on the first unlocking member 31 along a second direction, and a fourth guide portion is disposed on the second locking member. When the first unlocking member 31 moves relative to the third unlocking member 55 along the first direction, the third guide portion and the fourth guide portion cooperate to drive the second locking member to engage or disengage from the first locking member along the second direction. Since the second locking member can only move with the first unlocking member 31 in the first direction, when the first unlocking member 31 moves while the third unlocking member 55 does not move, the interaction between the third guide portion and the fourth guide portion can drive the second locking member to move along the second direction, thereby engaging with the first locking member and locking the first unlocking member 31. When the first unlocking member 31 does not move while the third unlocking member 55 moves relative to the first unlocking member 31 along the first direction, the third unlocking member 55 also moves relative to the second locking member along the first direction. During this process, the interaction between the third guide part and the fourth guide part can drive the second locking member to move along the second direction, thereby causing the second locking member to disengage from the first locking member and unlocking the first unlocking member 31.

[0137] In this embodiment, see Figure 14 and Figure 19 The third guide portion has a third guide surface 551, and the fourth guide portion has a fourth guide surface 421. When the first unlocking member 31 and the third unlocking member 55 move relative to each other in the first direction, the third guide surface 551 and the fourth guide surface 421 slide together. The third guide surface 551 can generate a pushing force on the fourth guide surface 421, thereby driving the second locking member (first locking pin 42) to move in the second direction.

[0138] For example, the third guide surface 551 includes a first positioning plane 5511, a guide ramp 5512, and a second positioning plane 5513 connected in sequence, and the first positioning plane 5511 is further away from the limiting hole 112 relative to the second positioning plane 5513. Figure 12 As shown, in the initial state, the fourth guide surface 421 of the first locking pin 42 abuts against the first positioning plane 5511, so that the end face of the first locking pin 42 does not protrude from the limiting hole 314. During the pressing down of the first unlocking member 31, the third unlocking member 55 remains stationary, and the fourth guide surface 421 of the first locking pin 42 slides from the first positioning plane 5511 to the guide slope 5512, and then slides from the guide slope 5512 to the second positioning surface, as shown. Figure 14 As shown, at this time, the first unlocking component 31 is in the first position, and the first locking pin 42 passes through the limiting hole 314 in the second direction and is engaged in the limiting hole 112, thus completing the locking of the first unlocking component 31.

[0139] Furthermore, the fourth guide surface 421 is an arc surface, which can reduce the resistance of the sliding contact between the fourth guide surface 421 and the third guide surface 551, making the first locking pin 42 move more smoothly.

[0140] Optionally, see Figure 12 , Figure 18 and Figure 19 The second unlocking mechanism 5 also includes a third elastic element 56, which extends along a first direction and is constrained between the first unlocking element 31 and the third unlocking element 55. The third unlocking element 55 can move relative to the first unlocking element 31 along the first direction under the elastic force of the third elastic element 56. The second locking mechanism 4 also includes a fourth elastic element 43, which extends along a second direction and is constrained between the first unlocking element 31 and the second locking element. The second locking element can move along the second direction under the elastic force of the fourth elastic element 43 to engage with the first locking element. The third elastic element 56 allows the third unlocking element 55 to automatically move relative to the first unlocking element 31 along the first direction, thereby allowing the second locking element (first locking pin 42) to automatically insert into or disengage from the limiting hole 112 under the elastic force of the fourth elastic element 43, thus automatically unlocking the first unlocking element 31.

[0141] Furthermore, the elastic force of the fourth elastic member 43 is less than that of the third elastic member 56. With this configuration, after the second connecting part 100 disengages from the insertion cavity 111, the third elastic member 56 can have sufficient elastic force to drive the third unlocking member 55 to move downward, thereby driving the first locking pin 42 to disengage from the limiting hole 112.

[0142] Optionally, see Figure 14 and Figure 20The first unlocking member 31 is provided with a sliding cavity 313 communicating with the insertion cavity 111. The second unlocking mechanism 5 is slidably disposed in the sliding cavity 313 along a first direction. One end of the second connecting part 100 located in the insertion cavity 111 can extend into the sliding cavity 313 and abut against the second unlocking mechanism 5. When the second connecting part 100 disengages from the insertion cavity 111, the second unlocking mechanism 5 moves relative to the first unlocking member 31 to drive the second locking member to disengage from the first locking member. In this embodiment, the third unlocking member 55 is slidably disposed in the sliding cavity 313 along the first direction. The second connecting part 100 extends into the sliding cavity 313 and abuts against the third unlocking member 55, so that the compression limit of the third elastic member 56 is located between the third unlocking member 55 and the first unlocking member 31. When the second connecting part 100 disengages from the insertion cavity 111, the third unlocking member 55 moves relative to the first unlocking member 31 under the elastic force of the third elastic member 56.

[0143] Specifically, such as Figure 12 As shown, in the initial state, the first unlocking member 31 is in the second position, the end of the first locking pin 42 is located in the limiting hole 314, and there is a small distance between the lower end of the third unlocking member 55 and the top end of the second connecting part 100. When the first unlocking member 31 is pressed down, the first unlocking member 31 moves the third unlocking member 55 down together with the third elastic member 56, and the first locking pin 42 moves down with the first unlocking member 31 at the same time. After moving down a short distance, the lower end of the third unlocking member 55 abuts against the top end of the second connecting part 100. When the first unlocking member 31 is pressed down again, the third unlocking member 55 does not move, and the third elastic member 56 is compressed. During this process, the third guide surface 551 of the third unlocking member 55 always slides with the fourth guide surface 421 of the first locking pin 42. Since the second positioning plane 5513 of the third guide surface 551 is closer to the limiting hole 112 than the first positioning plane 5511, the first locking pin 42 moves to the left in the second direction under the elastic force of the fourth elastic member 43 as the first unlocking member 31 moves down (refer to...). Figure 12 and Figure 14 (in the orientation), until the first locking pin 42 is inserted into the limiting hole 112, as shown. Figure 14 As shown, locking the first unlocking component 31 is complete. Figure 13 and Figure 15 As shown, during this process, the elastic arm 22 on the locking hook 21 is compressed and accumulates elastic potential energy.

[0144] like Figure 20As shown, at the instant the second connecting part 100 disengages from the insertion cavity 111, the third unlocking member 55 moves downward relative to the first unlocking member 31 under the elastic force of the third elastic member 56. During this process, the fourth guide surface 421 of the first locking pin 42 slides from the second positioning plane 5513 to the guide slope 5512, and then slides from the guide slope 5512 to the first positioning plane 5511. The fourth elastic member 43 is deformed by pressure, and the first locking pin 42 moves to the right along the second direction and disengages from the limiting hole 112, thus completing the unlocking of the first unlocking member 31.

[0145] like Figure 21 and Figure 22 As shown, after the second connecting part 100 disengages from the insertion cavity 111, the elastic arm 22 on the locking hook 21 releases its elastic potential energy, causing the locking hook 21 to rotate towards the locked position. During this process, the second engaging part 211 of the locking hook 21 slides into contact with the first engaging part 311 of the first unlocking member 31, thereby pushing the first unlocking member 31 back from the first position to the second position along the first direction. At the same time, the first unlocking member 31 drives the third unlocking member 55 and the first locking pin 42 to move upward and return to their original positions. Exemplarily, the third elastic member 56 and the fourth elastic member 43 are both springs.

[0146] In this embodiment, see Figure 14 and Figure 20 The bottom of the third unlocking member 55 is provided with a second abutting surface 552, and the end of the second connecting part 100 abuts against the second abutting surface 552.

[0147] Optionally, a fifth positioning protrusion is provided on the first unlocking component 31, see reference. Figure 18 and Figure 19 The third unlocking member 55 is provided with a sixth positioning protrusion 553. One end of the third elastic member 56 is sleeved on the fifth positioning protrusion and the other end is sleeved on the sixth positioning protrusion 553. This ensures that the third elastic member 56 is securely installed between the first unlocking member 31 and the third unlocking member 55, and ensures that the third elastic member 56 always extends and retracts in the first direction.

[0148] Further, see Figure 16 The first unlocking component 31 is provided with a second limiting groove 316 extending along the second direction, combined with Figure 12 and Figure 14 A seventh positioning protrusion is provided inside the second limiting groove 316, see reference. Figure 19 The first locking pin 42 is provided with an eighth positioning protrusion 422. One end of the fourth elastic member 43 extends into the second limiting groove 316 and is sleeved on the seventh positioning protrusion, while the other end of the fourth elastic member 43 is sleeved on the eighth positioning protrusion 422. The arrangement of the second limiting groove 316, the seventh positioning protrusion, and the eighth positioning protrusion 422 ensures that the fourth elastic member 43 can only extend and retract in the second direction, guaranteeing that the first locking pin 42 always moves in the second direction.

[0149] Optionally, see Figure 18 and Figure 19 The third unlocking member 55 is provided with a second slide groove 554 extending along the first direction. One end of the first locking pin 42 is slidably inserted into the second slide groove 554. The third guide surface 551 is arranged side by side with the second slide groove 554, so that when the third unlocking member 55 and the first unlocking member 31 move relative to each other in the first direction, the third guide surface 551 can slide and cooperate with the fourth guide surface 421, while the first locking pin 42 moves in the second slide groove 554.

[0150] Example 3

[0151] like Figures 23 to 25 As shown, this embodiment provides a supporting device, which differs from Embodiments 1 and 2 in that:

[0152] Optionally, see Figure 23 and Figure 24 The first unlocking mechanism includes a first unlocking member 31 connected to the locking hook 21. When the first unlocking member 31 is driven to move toward the first position, the locking hook 21 can rotate in the direction of disengaging from the limiting block 101. In this embodiment, the first unlocking member 31 is fixedly connected to the locking hook 21, and the first unlocking member 31 can swing left and right relative to the first connecting part 11 (see reference). Figure 23 and Figure 24 (The position in the middle), the user only needs to move the first unlocking component 31 to drive the lock hook 21 to unlock.

[0153] Furthermore, the first connecting part 11 is provided with a plug cavity 111, the second connecting part 100 can be inserted into or detached from the plug cavity 111, and the locking hook 21 is rotatably disposed in the plug cavity 111.

[0154] Optionally, one of the first locking member and the second locking member is a snap-fit ​​member, and the other is a limiting hole. In this embodiment, see [reference needed]. Figure 23 and Figure 24 The locking component includes a second locking pin 44 movably disposed on the first unlocking component 31, and a limiting hole includes a limiting hole three 113 disposed on the first connecting part 11. During the movement of the first unlocking component 31 toward the first position, the second locking pin 44 can be locked into the limiting hole three 113.

[0155] like Figure 23 and Figure 24 As shown, when the locking hook 21 is in the locked state, the second locking pin 44 is not engaged with the limiting hole 313, and the first unlocking member 31 is facing towards... Figure 24 During the movement in the direction indicated by the arc-shaped arrow, when the second locking pin 44 moves with the first unlocking component 31 to align with the limiting hole 313, the second locking pin 44 engages with the limiting hole 313, thereby locking the first unlocking mechanism. Figure 24 As shown.

[0156] Furthermore, the second locking mechanism also includes a fifth elastic element 45, one end of which is connected to the second locking pin 44, and the other end of which is connected to the first unlocking mechanism, as shown below. Figure 23 As shown, when the locking hook 21 is in the locked state, the end of the second locking pin 44 abuts against the first connecting part 11, and the fifth elastic member 45 is in a compressed state. When the first unlocking member 31 moves the second locking pin 44 to align with the limiting hole 3 113, the fifth elastic member 45 releases its elastic potential energy to drive the second locking pin 44 into the limiting hole 3 113. Under the elastic force of the fifth elastic member 45, the second locking pin 44 is stably held in the position of locking the first unlocking member 31, so that the locking hook 21 is temporarily kept in the unlocked position.

[0157] Furthermore, the end of the second locking pin 44 is designed as an arc surface to ensure that the second locking pin 44 can smoothly engage or disengage from the limiting hole 313.

[0158] Optionally, see Figure 23 and Figure 24 An elastic reset member 23 is provided between the locking hook 21 and the inner wall of the insertion cavity 111. The locking hook 21 can rotate towards the hook-locking block 101 under the elastic force of the elastic reset member 23. During the unlocking process where the first unlocking member 31 drives the locking hook 21 to rotate, the elastic reset member 23 is stretched. When the second connecting part 100 disengages from the insertion cavity 111 and releases the first unlocking member 31, the elastic reset member 23 releases its elastic potential energy, causing the locking hook 21 to rotate and reset towards the hook-locking block 101.

[0159] Optionally, the support device is provided with a second unlocking mechanism 5, which is used to drive the first locking member to disengage from the second locking member. (See reference...) Figure 24 and Figure 25 The second unlocking mechanism 5 is disposed on the second connecting part 100 of the support device. The second unlocking mechanism 5 includes a fourth unlocking member 57 disposed on the second connecting part 100. During the process of the second connecting part 100 disengaging from the first connecting part 11, the fourth unlocking member 57 can drive the locking hook 21 to move toward the locking position, so that the locking hook 21 drives the first unlocking member 31 and the second locking pin 44 to disengage from the limiting hole 313, thereby unlocking the first unlocking member 31.

[0160] Example 4

[0161] like Figures 26 to 31 As shown, this embodiment provides a supporting device, which differs from Embodiments 1, 2, and 3 in that:

[0162] Optionally, one of the first locking member and the second locking member is a snap-fit ​​member, and the other is a limiting hole. In this embodiment, see [reference needed]. Figure 26 , Figure 27 , Figure 28 and Figure 29 The locking component includes a second locking pin 44 movably disposed on the first unlocking component 31, and a limiting hole includes a limiting hole three 113 disposed on the first connecting part 11. During the movement of the first unlocking component 31 toward the first position, the second locking pin 44 can be locked into the limiting hole three 113.

[0163] like Figure 26 and Figure 27 As shown, when the locking hook 21 is in the locked state, the second locking pin 44 is not engaged with the limiting hole 313. During the downward movement of the first unlocking member 31, when the second locking pin 44 moves with the first unlocking member 31 to align with the limiting hole 313, the second locking pin 44 engages with the limiting hole 313, thereby locking the first unlocking mechanism. Figure 28 and Figure 29 As shown.

[0164] Furthermore, the second locking mechanism also includes a swing member 46 and a fifth elastic member 45. The swing member 46 is rotatably connected to the first unlocking member 31. The second locking pin 44 is a protrusion protruding from the swing member 46. One end of the fifth elastic member 45 is connected to the swing member 46, and the other end of the fifth elastic member 45 is connected to the first unlocking member 31. Figure 26 As shown, when the locking hook 21 is in the locked state, the end of the second locking pin 44 abuts against the first connecting part 11, and the fifth elastic member 45 is in a compressed state. When the first unlocking member 31 moves the second locking pin 44 to align with the limiting hole 3 113, the fifth elastic member 45 releases its elastic potential energy, causing the swing member 46 to rotate at a certain angle, thereby driving the second locking pin 44 to engage in the limiting hole 3 113, as shown. Figure 28 As shown, the second locking pin 44 is stably held in the position of locking the first unlocking member 31 under the elastic force of the fifth elastic member 45, so that the locking hook 21 is temporarily kept in the unlocked position.

[0165] Furthermore, the support device is equipped with a second unlocking mechanism 5, which is used to drive the first locking member to disengage from the second locking member. (See reference...) Figure 28 , Figure 30 and Figure 31 The second unlocking mechanism 5 is disposed on the second connecting part 100 of the support device. The second unlocking mechanism 5 includes a fifth unlocking member 58 disposed on the second connecting part 100. During the process of the second connecting part 100 disengaging from the first connecting part 11, the fifth unlocking member 58 can drive the swing member 46 to rotate, so that the swing member 46 drives the second locking pin 44 to disengage from the limiting hole 113 (e.g., Figure 30 As shown), the first unlocking component 31 is unlocked.

[0166] Example 5

[0167] This embodiment provides a child carrier, including a support device and a carrying device as described in any of the above embodiments, wherein the carrying device is detachably mounted to the support device. The carrying device can be an infant carrier, a bassinet, a child seat, etc. The support device can be a stroller frame, a fixed seat for securing the carrying device, or a car seat, etc.

[0168] When disassembling a child carrier using this support device, the user only needs to operate the first unlocking mechanism to unlock the first locking mechanism 2. At this time, the second locking mechanism 4 can lock the first unlocking mechanism in the first position where the first locking mechanism 2 is unlocked. That is, the first locking mechanism 2 remains unlocked, and the first connecting part 11 is unlocked from the support device. Therefore, the user does not need to manually keep the first locking mechanism 2 unlocked all the time, and can remove the carrier 1 from the support device with both hands or one hand. This solves the problem of difficult disassembly of existing support devices and support devices, and improves the user experience.

[0169] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A supporting device, characterized in that, include: A support base, wherein at least two opposite sides of the support base are provided with first connecting portions, the first connecting portions being configured to connect to a support device of a child vehicle; A first locking mechanism is disposed at the first connecting portion, and the first locking mechanism is used to lock the first connecting portion and the support device; A first unlocking mechanism is disposed on the first connecting portion, and the first unlocking mechanism has a first position for unlocking the first locking mechanism and a second position for releasing the first locking mechanism; The second locking mechanism is provided between the first connecting portion and the first unlocking mechanism on at least one side, and the second locking mechanism is used to lock the first unlocking mechanism in the first position.

2. The bearing device according to claim 1, characterized in that, The first connecting part has a plug-in cavity, and the support device is provided with a second connecting part, which can be inserted into or detached from the plug-in cavity; the first locking mechanism includes a locking hook rotatably disposed in the plug-in cavity, and a limiting block is provided on the second connecting part, which can hook onto the limiting block to lock the first connecting part and the second connecting part; The first unlocking mechanism includes a first unlocking member movably disposed in the insertion cavity. The first unlocking member has a first engaging portion, and the locking hook has a second engaging portion. When the first unlocking member moves relative to the insertion cavity, the first engaging portion engages with the second engaging portion to drive the locking hook to rotate in a direction disengaging from the limiting block; or... The first unlocking mechanism includes a first unlocking component connected to the lock hook, which, when driven to move toward the first position, causes the lock hook to rotate in the direction of disengaging from the limiting block.

3. The bearing device according to claim 2, characterized in that, The first mating part has a first mating surface, and the second mating part has a second mating surface. When the first unlocking member moves, the first mating surface can slide and engage with the second mating surface to drive the lock hook to rotate.

4. The bearing device according to claim 2, characterized in that, The locking hook is provided with an elastic arm, the end of which, away from the locking hook, abuts against the inner wall of the insertion cavity. The locking hook can rotate in the direction of engaging the limiting block under the elastic force of the elastic arm; or... An elastic reset member is provided between the locking hook and the inner wall of the insertion cavity, and the locking hook can rotate in the direction of hooking the limiting block under the elastic force of the elastic reset member.

5. The bearing device according to claim 1, characterized in that, The first unlocking mechanism includes a first unlocking member movably disposed on the first connecting portion along a first direction, and the second locking mechanism includes a first locking member disposed on the first connecting portion and a second locking member disposed on the first unlocking member. When the first unlocking mechanism moves to a first position, the first locking member and the second locking member cooperate to lock the first unlocking mechanism in the first position.

6. The bearing device according to claim 5, characterized in that, One of the first locking member and the second locking member is a snap-fit ​​member, and the other is a limiting hole; The latching member includes an elastic hook disposed on the first connecting portion, and the limiting hole includes a first limiting hole disposed on the first unlocking member. During the movement of the first unlocking member along the first direction, the elastic hook can engage with the first limiting hole under its own elastic force; or... The latching member includes a first locking pin movably disposed on the first unlocking member along a second direction; the limiting hole includes a second limiting hole disposed on the first connecting portion; during the movement of the first unlocking member along the first direction, the first locking pin can be driven to insert into the second limiting hole along the second direction; the first direction and the second direction are arranged at an angle; or... The latching member includes a second locking pin movably disposed on the first unlocking member, and the limiting hole includes a limiting hole three disposed on the first connecting part. During the process of the first unlocking member moving toward the first position, the second locking pin can be engaged into the limiting hole three.

7. The bearing device according to claim 5, characterized in that, The supporting device further includes a second unlocking mechanism connected to the first unlocking member, and the second unlocking mechanism is movable relative to the first unlocking member. When the second unlocking mechanism moves relative to the first unlocking member, it can drive the first locking member to engage or disengage from the second locking member. Alternatively, the support device may be provided with a second unlocking mechanism for driving the first locking member to disengage from the second locking member.

8. The bearing device according to claim 7, characterized in that, The second unlocking mechanism includes: A trigger is movably disposed on the first unlocking member along a first direction, and the trigger is provided with a first guide portion; The second unlocking member is movably disposed on the first unlocking member along the second direction. The second unlocking member is provided with a second guide portion. When the trigger member moves relative to the first unlocking member along the first direction, the first guide portion and the second guide portion cooperate to drive the second unlocking member to move along the second direction and drive the first locking member to cooperate with or disengage from the second locking member. A first elastic element is constrained between the first unlocking element and the triggering element, and the triggering element can move relative to the first unlocking element in a first direction under the elastic force of the first elastic element. The second elastic element is constrained between the first unlocking element and the second unlocking element. The second unlocking element can move along the second direction under the elastic force of the second elastic element to drive the first locking element to disengage from the second locking element. The elastic force of the second elastic element is less than that of the first elastic element.

9. The bearing device according to claim 7, characterized in that, The second unlocking mechanism includes a third unlocking member movably disposed on the first unlocking member along a first direction, the third unlocking member being provided with a third guide portion; the second locking member is movably disposed on the first unlocking member along a second direction, the second locking member being provided with a fourth guide portion. When the third unlocking member moves relative to the first unlocking member in the first direction, the third guide portion cooperates with the fourth guide portion to drive the second locking member to cooperate with or disengage from the first locking member in the second direction; The second unlocking mechanism further includes a third elastic element, which is constrained between the first unlocking element and the third unlocking element. The third unlocking element can move relative to the first unlocking element in a first direction under the elastic force of the third elastic element. The second locking mechanism further includes a fourth elastic element, which is constrained between the first unlocking element and the second locking element. The second locking element can move along a second direction to cooperate with the first locking element under the elastic force of the fourth elastic element. The elastic force of the fourth elastic element is less than that of the third elastic element.

10. The bearing device according to claim 7, characterized in that, The first connecting part has a insertion cavity, and the support device is provided with a second connecting part. The second connecting part can be inserted into or detached from the insertion cavity. When the second connecting part detaches from the insertion cavity, the second unlocking mechanism cooperates with the first locking member or the second locking member to drive the first locking member to disengage from the second locking member. The first unlocking component is provided with a sliding cavity communicating with the insertion cavity, and the second unlocking mechanism is slidably disposed in the sliding cavity along the first direction; The second connecting part is located at one end of the insertion cavity and can extend into the sliding cavity and abut against the second unlocking mechanism. When the second connecting part is disengaged from the insertion cavity, the second unlocking mechanism moves relative to the first unlocking member to drive the first locking member to disengage from the second locking member.

11. A child vehicle, characterized in that, It includes a support device and a load-bearing device as described in any one of claims 1-10, wherein the load-bearing device is detachably mounted on the support device.

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