Child carrier

Abstract

The utility model relates to the technical field of children products, and discloses a children carrier which comprises a frame, an adapter, a wheel set and a driving mechanism. The adapting piece is rotationally connected to the frame, the wheel set is detachably connected with the adapting piece, a clutch structure is arranged between the output end of the driving mechanism and the adapting piece, and the output end of the driving mechanism is selectively connected with or separated from the adapting piece through the clutch structure. When the output end of the driving mechanism is connected with the adapter through the clutch structure, the driving mechanism can drive the adapter to drive the wheel set to rotate, and the child carrier is electrically driven to move. When the child carrier is manually pushed to move, the output end of the driving mechanism is separated from the adapter through the clutch structure, the driving mechanism can be prevented from generating resistance to rotation of the wheel set, and therefore the child carrier can be easily pushed in a labor-saving mode. When the child carrier is stored, the wheel sets can be detached from the adapters, the independent storage of the wheel sets is achieved, the occupied space of the child carrier is reduced, and the child carrier is convenient to carry when a user goes out.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field especially relates to a children's carrier. BACKGROUND

[0002] The child stroller is the necessary tool of baby family, can reduce or eliminate the force that user pushes the child stroller, and also can provide comfortable riding environment for children. In order to reduce or eliminate the force that user pushes the child stroller, the wheel of part of the existing child stroller increases drive motor, and the wheel rotation is driven through motor, realizes the movement of electric power-assisted child stroller.

[0003] But the child stroller in actual use process, sometimes need according to the road surface situation and other factors manually push the child stroller, and do not need drive motor operation, at this time manually push the child stroller, and the resistance exists between drive motor and wheel, influence the rotation of wheel, lead to manually push the child stroller and be more laborious, and the use experience is not good.

[0004] Therefore, the urgent need of a children's carrier to solve the above problems. UTILITY MODEL CONTENTS

[0005] Based on above problem, the utility model discloses a purpose in kind of children's carrier, can realize electric drive movement, and can avoid the resistance of drive motor when manually push the movement.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Provide a kind of children's carrier, comprising:

[0008] Frame;

[0009] Adapter, rotation is connected in the frame;

[0010] Wheel group, with the detachable connection of adapter;

[0011] Drive mechanism, its output end is provided with clutch structure between adapter, the output end of drive mechanism is selectively engaged or separated with adapter through clutch structure, and drive mechanism is engaged with adapter and can drive adapter drive wheel group rotates on the frame.

[0012] As the optional scheme of the utility model children's carrier, the clutch structure includes the clutch piece that is movably arranged between the adapter and the drive mechanism along the axial direction of the adapter, and the clutch piece has the engagement position that is engaged with the adapter and the separation position that is separated from the adapter.

[0013] As an optional scheme of the child carrier, a first limiting structure is arranged on the adapter, and a second limiting structure is arranged on the clutch member; when the clutch member is in the engagement position, the first limiting structure is inserted into the second limiting structure;

[0014] One of the first limiting structure and the second limiting structure is a limiting protrusion, and the other is a limiting groove; when the clutch member is in the engagement position, the limiting protrusion is inserted into the limiting groove;

[0015] The limiting protrusion and the limiting groove are both provided with a plurality of limiting protrusions and limiting grooves, and the plurality of limiting grooves and the plurality of limiting protrusions are one-to-one correspondingly clamped.

[0016] As an optional scheme of the child carrier, the clutch structure further comprises a first elastic member extending along the axial direction of the adapter, and the first elastic member is compressed and limited between the adapter and the clutch member; the clutch member can move along the axial direction to the separation position under the elastic force of the first elastic member.

[0017] As an optional scheme of the child carrier, the child carrier further comprises a connecting member rotatably arranged on the frame, the output end of the driving mechanism is connected with the connecting member, the connecting member is provided with a first matching part, the clutch member is provided with a second matching part, and when the driving mechanism drives the connecting member to rotate, the first matching part is matched with the second matching part to drive the clutch member to move along the axial direction to the engagement position.

[0018] Alternatively, the clutch structure further comprises an electromagnetic driving member, the output end of the driving mechanism is connected with the electromagnetic driving member, and the clutch member can move along the axial direction to the engagement position under the magnetic force of the electromagnetic driving member.

[0019] Alternatively, the frame is provided with an operation part connected with the clutch member, and the operation part is configured to drive the clutch member to move along the axial direction.

[0020] As an optional scheme of the child carrier, the first matching part comprises a first guide surface, the second matching part comprises a second guide surface, and when the driving mechanism drives the adapter to rotate, the first guide surface is slidably matched with the second guide surface.

[0021] As an optional scheme of the child carrier, the frame comprises a frame connecting part, the frame connecting part has a mounting cavity, and the connecting member at least partially extends into the mounting cavity and is rotatably matched with the mounting cavity.

[0022] The clutch structure further comprises a limiting piece and a second elastic piece, the limiting piece is movably arranged in the mounting cavity along the axial direction of the adapter piece and coaxially arranged outside the connecting member, the second elastic piece is compressed between the limiting piece and the inner wall of the mounting cavity, and the limiting piece can abut against the clutch piece under the elastic force of the second elastic piece to limit rotation of the clutch piece.

[0023] The mounting cavity is provided with a first rotating part, and the adapter piece is rotationally connected to the frame connecting part through the first rotating part.

[0024] The mounting cavity is provided with a second rotating part, and the connecting member is rotationally connected to the frame connecting part through the second rotating part.

[0025] As an optional scheme of the child carrier, the mounting cavity is provided with a first guide structure, the limiting piece is provided with a second guide structure, the first guide structure and the second guide structure are in sliding fit in the axial direction of the adapter piece and can circumferentially limit the limiting piece.

[0026] One of the first guide structure and the second guide structure is a guide groove, and the other is a guide protrusion, and the guide protrusion is in sliding fit with the guide groove.

[0027] As an optional scheme of the child carrier, the wheel set comprises an axle, the connecting member is tubular as a whole and has a plug-in cavity matched with the axle, the adapter piece has a first shaft hole in communication with the plug-in cavity, the clutch piece has a second shaft hole in communication with the plug-in cavity, and the axle sequentially passes through the first shaft hole, the second shaft hole and is axially positioned into the plug-in cavity.

[0028] As an optional scheme of the child carrier, the child carrier further comprises a locking mechanism for limiting the wheel set from being separated from the connecting member along the axial direction of the adapter piece.

[0029] The wheel set further comprises a wheel disc, the axle is coaxially arranged in the wheel disc, the plug-in cavity is provided with a third rotating part, and the axle is rotationally connected with the connecting member through the third rotating part.

[0030] The locking mechanism comprises a locking piece movably arranged on the axle along the radial direction of the axle, the locking piece has a locking position positioned to an end face of the third rotating part and an unlocking position separated from the third rotating part.

[0031] As an optional scheme of the child carrier, the locking mechanism further comprises a trigger lever and a third elastic member, the wheel shaft is a hollow shaft, the trigger lever is movably arranged in the cavity of the wheel shaft along the axial direction of the wheel shaft, and the third elastic member is limited between the trigger lever and the inner wall of the cavity of the wheel shaft along the axial direction of the wheel shaft.

[0032] Under the action of an external force, the trigger lever moves along the axial direction to move the locking member towards the unlocking position and accumulate elastic potential energy of the third elastic member.

[0033] After the action of the external force is cancelled, the third elastic member drives the trigger lever to move along the axial direction to move the locking member towards the locking position.

[0034] The wheel shaft is provided with a movable groove in communication with the cavity thereof, and the locking member is movably arranged in the movable groove, and the trigger lever is provided with an unlocking groove, and when the unlocking position is reached, the unlocking groove is opposite to the movable groove, and the locking member is at least partially moved to the unlocking groove to be separated from the third rotating part.

[0035] As an optional scheme of the child carrier, the wheel set is provided with a first anti-rotation structure, the adapter is provided with a second anti-rotation structure, and the first anti-rotation structure and the second anti-rotation structure are matched to limit the relative rotation of the wheel set and the adapter in the circumferential direction.

[0036] One of the first anti-rotation structure and the second anti-rotation structure is an anti-rotation protrusion, and the other is an anti-rotation groove, and the anti-rotation protrusion is inserted into the anti-rotation groove; the anti-rotation protrusion and the anti-rotation groove are both provided with a plurality of anti-rotation protrusions and anti-rotation grooves, and the plurality of anti-rotation protrusions and anti-rotation grooves are one-to-one correspondingly inserted.

[0037] The wheel set comprises a wheel disc, the wheel disc is provided with an anti-rotation member, and the anti-rotation member is provided with the first anti-rotation structure.

[0038] The child carrier provided by the utility model has the advantages that:

[0039] When the output end of the driving mechanism is engaged with the adapter through the clutch structure, the driving mechanism can drive the adapter to drive the wheel set to rotate, so that the electrically-driven child carrier is moved. When the child carrier is moved by manpower, the output end of the driving mechanism is separated from the adapter through the clutch structure, so that the driving mechanism can prevent the rotation of the wheel set from generating resistance, thereby more easily and labor-savingly pushing the child carrier. When the child carrier is stored, the wheel set can be detached from the adapter, the wheel set is stored alone, the space occupied by the child carrier is reduced, and the user can conveniently carry the child carrier when going out. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the contents of the embodiments of the present application and the drawings.

[0041] Figure 1 is a structural schematic view of a wheel set provided by the embodiment of the present application;

[0042] Figure 2 is a first exploded schematic view of the wheel set provided by the embodiment of the present application;

[0043] Figure 3 is a second exploded schematic view of the wheel set provided by the embodiment of the present application;

[0044] Figure 4 is a cross-sectional view of the wheel set provided by the embodiment of the present application;

[0045] Figure 5 is Figure 4 is a local enlarged view of position A in FIG. 4;

[0046] Figure 6 is a cross-sectional view of the wheel axle provided by the embodiment of the present application;

[0047] Figure 7 is a structural schematic view of the clutch structure and the adapter provided by the second embodiment of the present application;

[0048] Figure 8 is a structural schematic view of the clutch structure and the adapter provided by the third embodiment of the present application;

[0049] Figure 9 is a schematic view of the clutch structure provided by the fourth embodiment of the present application;

[0050] Figure 10 is a structural schematic view of the clutch structure and the connecting member provided by the fifth embodiment of the present application.

[0051] In the drawings:

[0052] 1-vehicle frame connecting portion; 2-adapter; 3-wheel set; 4-clutch structure; 5-connecting member; 6-locking mechanism;

[0053] 7-first rotating part; 8-second rotating part; 9-third rotating part;

[0054] 11-mounting cavity; 12-guiding groove; 13-operating portion;

[0055] 21 - first limiting structure; 22 - first shaft hole; 23 - anti-rotation groove;

[0056] 31 - wheel shaft; 32 - wheel disc;

[0057] 311 - movable slot; 312 - second limiting part; 313 - fourth limiting part;

[0058] 321 - anti-rotation part; 3211 - anti-rotation protrusion;

[0059] 41 - clutch part; 42 - first elastic part; 43 - limiting part; 44 - second elastic part; 45 - electromagnetic driving part;

[0060] 411 - second limiting structure; 412 - second matching part; 4121 - second guide surface; 413 - second shaft hole;

[0061] 431 - guide protrusion;

[0062] 51 - first connecting sleeve; 52 - second connecting sleeve;

[0063] 511 - first matching part; 5111 - first guide surface; 512 - plug-in cavity; 521 - connecting hole;

[0064] 61 - locking part; 62 - trigger rod; 63 - third elastic part;

[0065] 621 - unlocking slot; 622 - first limiting part; 623 - third limiting part. DETAILED DESCRIPTION

[0066] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiments of the utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0067] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0068] 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.

[0069] Example 1

[0070] like Figures 1 to 4 As shown, this embodiment provides a child vehicle that can achieve electric drive for movement while avoiding resistance generated by the drive motor when pushed manually. The child vehicle includes a frame, an adapter 2, a wheel set 3, and a drive mechanism.

[0071] The adapter 2 is rotatably connected to the frame, and the wheel set 3 is detachably connected to the adapter 2. A clutch structure 4 is provided between the output end of the drive mechanism and the adapter 2. The output end of the drive mechanism is selectively engaged or disengaged from the adapter 2 through the clutch structure 4. When the drive mechanism is engaged with the adapter 2, it can drive the adapter 2 to drive the wheel set 3 to rotate on the frame.

[0072] In this embodiment, see Figure 1 and Figure 4 The frame includes a frame connecting part 1, and an adapter 2 is rotatably mounted on the frame connecting part 1. The frame connecting part 1 is used to connect with the frame body.

[0073] When the output end of the drive mechanism engages with the adapter 2 via the clutch structure 4, the drive mechanism drives the adapter 2 to rotate the wheel set 3, thus achieving electric drive for the child vehicle. When the child vehicle is pushed manually, the clutch structure 4 separates the output end of the drive mechanism from the adapter 2, preventing the drive mechanism from generating resistance to the rotation of the wheel set 3, making it easier and less strenuous to push the child vehicle. For storage, the wheel set 3 can be detached from the adapter 2 for separate storage, reducing the space occupied by the child vehicle and making it convenient for users to carry when out and about.

[0074] Optionally, see Figure 2 and Figure 3 The wheelset 3 is equipped with a first anti-rotation structure, and the adapter 2 is equipped with a second anti-rotation structure. The first and second anti-rotation structures cooperate to restrict the relative rotation of the wheelset 3 and the adapter 2 in the circumferential direction. The first and second anti-rotation structures ensure that the wheelset 3 and the adapter 2 can always rotate synchronously, guaranteeing the coaxiality of the wheelset 3 during rotation and improving the rotational stability of the wheelset 3.

[0075] Optionally, one of the first anti-rotation structure and the second anti-rotation structure is an anti-rotation protrusion 3211, and the other is an anti-rotation groove 23, with the anti-rotation protrusion 3211 and the anti-rotation groove 23 interlocking. In this embodiment, the wheel set 3 is provided with the anti-rotation protrusion 3211, and the adapter 2 is provided with the anti-rotation groove 23. After the wheel set 3 is installed and fixed, the anti-rotation protrusion 3211 is inserted into the anti-rotation groove 23, thereby achieving circumferential positioning of the wheel set 3 and the adapter 2.

[0076] Furthermore, multiple anti-rotation protrusions 3211 and anti-rotation grooves 23 are provided. Multiple anti-rotation protrusions 3211 are spaced apart circumferentially on the wheel set 3, and multiple anti-rotation grooves 23 are spaced apart circumferentially on the adapter 2. The multiple anti-rotation protrusions 3211 and multiple anti-rotation grooves 23 are inserted one-to-one, making the circumferential positioning of the wheel set 3 and the adapter 2 more stable, and ensuring the coaxiality of the wheel set 3 when it rotates.

[0077] Further, see Figure 3 and Figure 5 The wheel assembly 3 includes a wheel disc 32, on which an anti-rotation component 321 is provided, and the anti-rotation component 321 is provided with a first anti-rotation structure. In this embodiment, a groove is recessed in the wheel disc 32, and the anti-rotation component 321 is embedded in the groove. Multiple anti-rotation protrusions 3211 are provided on the side of the anti-rotation component 321 facing away from the groove. Exemplarily, the anti-rotation component 321 is fixed to the wheel disc 32 by screws or other fasteners, and the anti-rotation component 321 can be disassembled and replaced for convenient maintenance.

[0078] Optionally, see Figure 2 , Figure 3 and Figure 4 The clutch structure 4 includes a clutch member 41 movably disposed between the adapter 2 and the drive mechanism along the axial direction of the adapter 2. The clutch member 41 has an engaged position that engages with the adapter 2 and a disengaged position that disengages from the adapter 2. When electric power is needed to drive the wheel set 3, the clutch member 41 is driven axially to engage with the adapter 2, and the drive mechanism can then drive the adapter 2 to rotate the wheel set 3 on the frame via the clutch member 41. When the drive mechanism is not needed to drive the wheel set 3, the clutch member 41 is driven axially to disengage from the adapter 2. At this time, when the child vehicle is pushed manually, the wheel set 3 and the adapter 2 rotate relative to the frame, so that the drive mechanism does not interfere with the rotation of the wheel set 3, thereby reducing the resistance when pushing the child vehicle manually and making it easier to push.

[0079] Optionally, see Figure 2 and Figure 3The child vehicle also includes a connecting member 5 rotatably mounted on the frame. The output end of the drive mechanism is connected to the connecting member 5. The connecting member 5 is provided with a first mating part 511, and the clutch 41 is provided with a second mating part 412. When the drive mechanism drives the connecting member 5 to rotate, the first mating part 511 and the second mating part 412 engage to drive the clutch 41 to move axially toward the engagement position. That is, during the process of the drive mechanism driving the adapter 2 to rotate, the first mating part 511 and the second mating part 412 interact to generate an axial thrust on the clutch 41, thereby causing the clutch 41 to move toward the adapter 2 until the clutch 41 engages with the adapter 2.

[0080] Specifically, the first mating part 511 includes a first guide surface 5111 disposed on the connecting member 5, and the second mating part 412 includes a second guide surface 4121 disposed on the clutch member 41 (see reference). Figure 7 When the drive mechanism drives the adapter 2 to rotate, the first guide surface 5111 and the second guide surface 4121 slide together, thereby pushing the clutch 41 to move and engage with the adapter 2.

[0081] For example, the connecting member 5 is tubular in shape and has a plug-in cavity 512 adapted to the clutch member 41. The first mating part 511 is a first protrusion protruding from the inner wall of the plug-in cavity 512. Multiple first protrusions are spaced apart in the circumferential direction in the plug-in cavity 512. The first guide surface 5111 is provided on the opposite sides of each first protrusion. Further, the second mating part 412 includes multiple second protrusions spaced apart in the circumferential direction on the clutch member 41. The second guide surface 4121 is provided on the opposite sides of each second protrusion. A first mating groove is formed between every two adjacent first protrusions, and a second mating groove is formed between every two adjacent second protrusions. After the clutch member 41 is installed into the plug-in cavity 512, the first protrusions are engaged in the second mating grooves, and the second protrusions are engaged in the first mating grooves. When the driving mechanism drives the adapter 2 to rotate, the interaction between the first guide surface 5111 and the second guide surface 4121 can drive the clutch member 41 to move axially.

[0082] Optionally, the connecting member 5 includes a first connecting sleeve 51 and a second connecting sleeve 52. One end of the first connecting sleeve 51 is rotatably connected to the frame connecting part 1, and the other end is sleeved and connected to the outside of the second connecting sleeve 52. The above-mentioned insertion cavity 512 is formed inside the first connecting sleeve 51. The first connecting sleeve 51 and the second connecting sleeve 52 can be fixed together by fasteners such as screws. The second connecting sleeve 52 is used to connect to the output end of the drive mechanism.

[0083] For example, the driving mechanism is a rotary motor. The second connecting sleeve 52 is provided with a connecting hole 521 extending along its axial direction. The output shaft of the rotary motor is inserted into the connecting hole 521. After the rotary motor is started, it can drive the second connecting sleeve 52 and the first connecting sleeve 51 to rotate synchronously.

[0084] Optionally, see Figure 2 and Figure 3 The adapter 2 is provided with a first limiting structure 21, and the clutch 41 is provided with a second limiting structure 411. When in the engagement position, the first limiting structure 21 and the second limiting structure 411 are inserted into each other, so that the clutch 41 can be circumferentially limited and fixed together with the adapter 2. When the drive mechanism drives the connecting member 5 to rotate the clutch 41, the adapter 2 rotates synchronously with the clutch 41, thereby driving the wheel set 3 to rotate.

[0085] Optionally, one of the first limiting structure 21 and the second limiting structure 411 is a limiting protrusion, and the other is a limiting groove. In the engaged position, the limiting protrusion is inserted into the limiting groove. In this embodiment, as shown... Figure 2 and Figure 3 As shown, the adapter 2 is provided with a limiting protrusion, and the clutch 41 is provided with a limiting groove. When the clutch 41 moves axially to the engagement position, the limiting groove engages with the limiting protrusion.

[0086] Furthermore, multiple limiting protrusions and limiting grooves are provided. Multiple limiting protrusions are arranged in a ring along the circumferential direction on the adapter 2, and multiple limiting grooves are arranged in a ring along the circumferential direction on the clutch 41. The multiple limiting grooves and multiple limiting protrusions are engaged one-to-one, which can improve the circumferential limiting stability of the clutch 41 and the adapter 2.

[0087] Optionally, see Figure 2 , Figure 3 , Figure 4 and Figure 5 The clutch structure 4 also includes a first elastic element 42 extending axially along the adapter 2. The first elastic element 42 is compressed and positioned between the adapter 2 and the clutch 41. The clutch 41 can move axially toward the disengaged position under the elastic force of the first elastic element 42. When the drive mechanism drives the connecting member 5 to rotate, the connecting member 5 drives the clutch 41 to move axially toward the adapter 2. During this process, the first elastic element 42 compresses and accumulates elastic potential energy. When the drive mechanism stops operating, the first elastic element 42 releases its elastic potential energy, driving the clutch 41 to move away from the adapter 2, so that the clutch 41 disengages from the adapter 2, thereby avoiding resistance to the rotation of the adapter 2 by the drive mechanism, making it easier to push the child carrier manually. For example, the first elastic element 42 is a compression spring.

[0088] Optionally, see Figure 2 , Figure 3 , Figure 4 and Figure 5The frame connecting part 1 has a mounting cavity 11, and the connecting member 5 extends at least partially into the mounting cavity 11 and rotates with the mounting cavity 11. The clutch structure 4 also includes a limiting member 43 and a second elastic member 44. The limiting member 43 is movably disposed in the mounting cavity 11 along the axial direction of the adapter 2 and coaxially disposed outside the connecting member 5. The compression limit of the second elastic member 44 is located between the limiting member 43 and the inner wall of the mounting cavity 11. The limiting member 43 can abut against the clutch member 41 under the elastic force of the second elastic member 44 to restrict the rotation of the clutch member 41. When the clutch 41 and the adapter 2 are in a disengaged state, the second elastic member 44 is in a compressed state, and the limiting member 43 abuts against the clutch 41. Therefore, when the drive mechanism drives the connecting member 5 to rotate, due to the frictional force of the limiting member 43 on the clutch 41, the clutch 41 can only move axially towards the adapter 2 under the interaction force of the first mating part 511 and the second mating part 412. At the same time, the limiting member 43 moves towards the adapter 2 under the elastic force of the second elastic member 44, so that the limiting member 43 always abuts against the clutch 41, preventing the clutch 41 from rotating and ensuring that the clutch 41 can accurately engage with the adapter 2.

[0089] Further, see Figure 2 and Figure 3 A first guide structure is provided inside the mounting cavity 11, and a second guide structure is provided on the limiting member 43. The first guide structure and the second guide structure slide in axial direction on the adapter 2 and can circumferentially limit the limiting member 43. The cooperation of the first guide structure and the second guide structure can both restrict the movement direction of the limiting member 43 and prevent the limiting member 43 from rotating, ensuring that the limiting member 43 can abut against the clutch 41 and limit the rotation of the clutch 41 during the movement of the clutch 41 toward the engagement position.

[0090] Optionally, one of the first guide structure and the second guide structure is a guide groove 12, and the other is a guide protrusion 431, with the guide protrusion 431 slidingly engaged with the guide groove 12. The guide groove 12 and the guide protrusion 431 can also limit the travel of the limiting member 43. Specifically, when the clutch member 41 moves to the engagement position, the guide protrusion 431 slides to its limit position within the guide groove 12, and the limiting member 43 can no longer move axially. When the drive mechanism continues to drive the connecting member 5 to rotate, the clutch member 41 can continue to move towards the adapter 2 to disengage from the limiting member 43. The resistance force of the limiting member 43 on the clutch member 41 disappears. At this time, the connecting member 5, the clutch member 41, and the adapter 2 are engaged, and the drive mechanism can drive the connecting member 5, the clutch member 41, and the adapter 2 to rotate synchronously, thereby driving the wheel set 3 to rotate synchronously.

[0091] When the drive mechanism stops operating and the child carrier is pushed manually, the wheel set 3 drives the adapter 2 to rotate. Under the elastic force of the first elastic element 42, the clutch 41 moves away from the adapter 2 until the clutch 41 disengages from the adapter 2 (separated position), reducing the resistance when pushing the child carrier manually, making it easier and less strenuous. In this embodiment, the elastic force of the second elastic element 44 is less than that of the first elastic element 42, so that during the separation process of the clutch 41 from the adapter 2, the clutch 41 can push against the limiting element 43 and move away from the adapter 2 under the elastic force of the first elastic element 42, and the second elastic element 44 compresses and stores energy.

[0092] For example, the second elastic element 44 is a compression spring, see reference Figure 3 and Figure 5 The outer peripheral wall of the limiting member 43 is provided with a receiving groove, and a stop ring is fixedly provided in the mounting cavity 11. A positioning groove is recessed on the end face of the stop ring. One end of the second elastic member 44 is restricted in the receiving groove, and the other end is restricted in the positioning groove, so as to ensure that the second elastic member 44 can always extend and contract along the axial direction.

[0093] Furthermore, the inner wall of the mounting cavity 11 is recessed with multiple guide grooves 12 along the circumferential direction, and the limiting member 43 is provided with multiple guide protrusions 431 at intervals along the circumferential direction. The multiple guide protrusions 431 and the multiple guide grooves 12 are slidably engaged in a one-to-one correspondence, which can improve the movement stability of the limiting member 43.

[0094] Optionally, see Figure 2 , Figure 3 and Figure 5 A first rotating component 7 is provided inside the mounting cavity 11. The adapter 2 is rotatably connected to the frame connecting part 1 via the first rotating component 7 to achieve rotatable installation of the adapter 2 and the frame. Exemplarily, the first rotating component 7 is a bearing, with its inner ring fixedly connected to the adapter 2 and its outer ring fixedly connected to the inner wall of the mounting cavity 11. In other embodiments, the first rotating component 7 may also be a self-lubricating bushing fitted and fixed to the adapter 2, with the self-lubricating bushing rotatably engaging with the inner wall of the mounting cavity 11.

[0095] Furthermore, a second rotating component 8 is provided inside the mounting cavity 11, and the connecting member 5 is rotatably connected to the frame connecting part 1 through the second rotating component 8 to achieve a rotatable connection between the connecting member 5 and the frame. For example, the second rotating component 8 is a bearing, the inner ring of the bearing is fixedly connected to the outer wall of the first connecting sleeve 51 of the adapter 2, and the outer ring of the bearing is fixedly connected to the inner wall of the mounting cavity 11.

[0096] Optionally, see Figure 2 , Figure 3 and Figure 4The wheel assembly 3 includes a wheel axle 31, which is coaxially mounted on the wheel disc 32. The connecting member 5 is tubular in shape and has a plug-in cavity 512 adapted to the wheel axle 31. The adapter 2 has a first shaft hole 22 communicating with the plug-in cavity 512. The clutch 41 has a second shaft hole 413 communicating with the plug-in cavity 512. The wheel axle 31 passes through the first shaft hole 22 and the second shaft hole 413 in sequence and is axially positioned in the plug-in cavity 512.

[0097] Further, see Figure 4 , Figure 5 and Figure 6 The child vehicle also includes a locking mechanism 6 for preventing the wheel assembly 3 from disengaging from the connecting member 5 along the axial direction of the adapter 2. When assembling the wheel assembly 3, the axle 31 is aligned with the first axle hole 22 and the second axle hole 413, inserted into the insertion cavity 512, and locked into the insertion cavity 512 by the locking mechanism 6. This prevents the wheel assembly 3 from detaching from the frame and ensures a secure installation. When it is necessary to remove the wheel assembly 3, simply unlock the locking mechanism 6 to release the axial restriction of the axle 31, and then remove the axle 31 from the insertion cavity 512, the first axle hole 22, and the second axle hole 413. The assembly and disassembly are simple.

[0098] Optionally, see Figure 3 and Figure 5 A third rotating component 9 is provided inside the insertion cavity 512, and the wheel axle 31 is rotatably connected to the connecting member 5 through the third rotating component 9. After the clutch 41 is separated from the adapter 2, the wheel assembly 3 can rotate relative to the connecting member 5, preventing the connecting member 5 from generating resistance to the rotation of the wheel assembly 3. Exemplarily, the third rotating component 9 is a bearing, the outer ring of the bearing is fixedly connected to the inner wall of the mounting cavity 11, and the wheel axle 31 passes through the inner ring of the bearing and is axially limited within the insertion cavity 512 by the locking mechanism 6.

[0099] Optionally, see Figure 4 , Figure 5 and Figure 6 The locking mechanism 6 includes a locking member 61 that is radially movably disposed on the axle 31. The locking member 61 has a locking position positioned at the end face of the third rotating component 9 and an unlocking position disengaged from the third rotating component 9. After the axle 31 is installed in the mounting cavity 11, the locking member 61 moves radially to the locking position to lock the axial position of the axle 31, preventing the wheel assembly 3 from disengaging from the connecting member 5 and ensuring that the wheel assembly 3 is securely installed. In this embodiment, the third rotating component 9 is a bearing. After the axle 31 passes through the inner ring of the bearing, the locking member 61 stops at the end face of the bearing.

[0100] Furthermore, the locking mechanism 6 also includes a trigger rod 62 and a third elastic element 63. The axle 31 is a hollow shaft. The trigger rod 62 is movably disposed within the cavity of the axle 31 along the axial direction of the axle 31. The third elastic element 63 is constrained along the axial direction of the axle 31 by the trigger rod 62 and the inner wall of the cavity of the axle 31. Under the action of an external force, the trigger rod 62 moves axially, causing the locking element 61 to move toward the unlocked position and the third elastic element 63 to accumulate elastic potential energy. After the external force is removed, the third elastic element 63 drives the trigger rod 62 to move axially, causing the locking element 61 to move toward the locked position.

[0101] When unlocking wheel assembly 3, an external force is applied to trigger rod 62, causing trigger rod 62 to move axially, thereby driving locking member 61 to move radially along wheel axle 31 and disengage from third rotating component 9, thus unlocking. After releasing trigger rod 62, trigger rod 62 moves in the opposite direction under the elastic force of third elastic member 63, thereby driving locking member 61 to extend radially along wheel axle 31 and stop at third rotating component 9, thus axially locking wheel axle 31.

[0102] Further, see Figure 5 and Figure 6 The axle 31 is provided with a movable groove 311 communicating with its cavity. The locking member 61 is movably disposed in the movable groove 311. The trigger rod 62 is provided with an unlocking groove 621. When in the unlocked position, the unlocking groove 621 is directly opposite the movable groove 311. The locking member 61 moves at least partially to the unlocking groove 621 to disengage from the third rotating component 9.

[0103] Specifically, such as Figure 4 and Figure 5 As shown, at this time, wheel assembly 3 is assembled with adapter 2 and connecting member 5, locking member 61 is stopped by third rotating member 9, and third elastic member 63 is in a compressed state. When disassembling wheel assembly 3, refer to... Figure 4 When the trigger rod 62 is positioned in the center, an external force drives the trigger rod 62 to move axially to the right. During this process, the third elastic element 63 compresses and stores energy. When the unlocking groove 621 on the trigger rod 62 moves to face the movable groove 311, the locking element 61 falls into the unlocking groove 621 under its own gravity. At the same time, the locking element 61 disengages from the third rotating component 9, unlocking the wheel assembly 3 and the connecting component 5. At this time, the wheel axle 31 can be disengaged from the insertion cavity 512. After the wheel axle 31 disengages from the insertion cavity 512, the external force on the trigger rod 62 is removed, and the third elastic element 63 releases its elastic potential energy, causing the trigger rod 62 to move axially relative to the wheel axle 31 again. The unlocking groove 621 and the movable groove 311 are misaligned, and the trigger rod 62 drives the locking element 61 to switch to the locked position.

[0104] Optionally, an unlock button can be provided on the wheel set 3. The unlock button is connected to the trigger rod 62. The trigger rod 62 is driven to unlock by pressing the unlock button axially, making the unlocking operation more convenient.

[0105] Optionally, see Figure 5 and Figure 6 The trigger rod 62 is provided with a first limiting part 622, and the cavity of the wheel axle 31 is provided with a second limiting part 312. The first limiting part 622 can abut against the second limiting part 312 in the axial direction to limit the axial movement of the trigger rod 62. The cooperation of the first limiting part 622 and the second limiting part 312 can prevent the trigger rod 62 from disengaging from the wheel axle 31, so that the locking member 61 can be accurately unlocked or locked.

[0106] For example, the locking member 61 is a spherical structure, the first limiting part 622 is an annular protrusion surrounding the trigger rod 62, and the second limiting part 312 is a stepped groove recessed into the inner wall of the cavity of the wheel axle 31.

[0107] Furthermore, a third limiting part 623 is provided on the trigger rod 62, and a fourth limiting part 313 is provided in the cavity of the wheel axle 31. The third elastic member 63 is sleeved on the trigger rod 62 and is constrained between the third limiting part 623 and the fourth limiting part 313. The cooperation of the third limiting part 623 and the fourth limiting part 313 allows the third elastic member 63 to extend and retract only within a limited space, thereby generating an axial force on the trigger rod 62, enabling the trigger rod 62 to move automatically along the axial direction, thereby driving the locking member 61 to move to the locking position and maintain it in the locked state.

[0108] For example, the third elastic element 63 is a spring, the third limiting part 623 is a limiting ring fitted onto the trigger rod 62, and the fourth limiting part 313 is a stepped groove recessed into the inner wall of the cavity of the wheel axle 31.

[0109] Example 2

[0110] This embodiment provides a child vehicle, which differs from Embodiment 1 in that:

[0111] Optionally, see Figure 7The clutch structure 4 includes a clutch element 41 and a first elastic element 42. The clutch element 41 is axially movably disposed within the mounting cavity 11 of the frame connecting part 1. The first elastic element 42 is compressed and limited between the adapter 2 and the clutch element 41. The connecting member 5 is connected to the output end of the drive mechanism. The connecting member 5 is provided with a first mating part 511, and the clutch element 41 is provided with a second mating part 412. When the drive mechanism drives the connecting member 5 to rotate, the first mating part 511 and the second mating part 412 engage to drive the clutch element 41 to move axially toward the engagement position. That is, during the process of the drive mechanism driving the adapter 2 to rotate, the first mating part 511 and the second mating part 412 interact to generate an axial thrust on the clutch element 41, thereby causing the clutch element 41 to move toward the adapter 2 until the clutch element 41 engages with the adapter 2. During this process, the first elastic element 42 compresses and accumulates elastic potential energy. When the drive mechanism stops operating, the first elastic element 42 releases elastic potential energy, driving the clutch 41 to move away from the adapter 2, so that the clutch 41 disengages from the adapter 2, thereby avoiding the drive mechanism from generating resistance to the rotation of the adapter 2, making it easier to push the child vehicle manually.

[0112] Furthermore, in this embodiment, the first limiting structure 21 is a limiting groove provided on the adapter 2, and the second limiting structure 411 is a limiting protrusion provided on the clutch 41. When engaged, the limiting protrusion is inserted into the limiting groove. For example, the limiting protrusion is a ratchet.

[0113] Furthermore, multiple limiting grooves are provided circumferentially on the adapter 2, and correspondingly, multiple limiting protrusions are provided circumferentially on the clutch 41. The multiple limiting protrusions and multiple limiting grooves are engaged one-to-one, thereby improving the circumferential limiting stability of the clutch 41 and the adapter 2.

[0114] Example 3

[0115] This embodiment provides a child vehicle, which differs from Embodiment 1 in that:

[0116] See Figure 8 Optionally, the clutch structure 4 includes a clutch member 41 movably disposed between the adapter 2 and the wheel set 3 along the axial direction of the adapter 2. The clutch member 41 has an engagement position for engaging with the wheel set 3 and a disengagement position for disengaging from the wheel set 3. An operating part 13 connected to the clutch member 41 is provided on the frame connection part 1, and the operating part 13 is configured to drive the clutch member 41 to move axially.

[0117] When the electric-assisted child vehicle needs to be moved, the clutch 41 is moved to engage with the adapter 2 via the operating unit 13. At this time, the drive mechanism can drive the adapter 2 to rotate the wheel set 3 through the clutch 41. When electric assistance is not needed, the clutch 41 is moved to disengage from the adapter 2 via the operating unit 13. At this time, when the child vehicle is pushed manually, the drive mechanism will not generate resistance to the rotation of the wheel set 3, making pushing easier.

[0118] In this embodiment, see Figure 8 The first limiting structure 21 is a limiting groove provided on the adapter 2, and the second limiting structure 411 is a limiting protrusion provided on the clutch 41. In the engaged position, the limiting protrusion is inserted into the limiting groove. Furthermore, multiple limiting grooves are provided at intervals along the circumference on the adapter 2, and correspondingly, multiple limiting protrusions are provided at intervals along the circumference on the clutch 41. The multiple limiting protrusions and multiple limiting grooves are engaged one-to-one, improving the circumferential limiting stability of the clutch 41 and the adapter 2.

[0119] Example 4

[0120] This embodiment provides a child vehicle, which differs from Embodiment 1 in that:

[0121] See Figure 9 Optionally, the clutch structure 4 includes a clutch member 41 movably disposed between the adapter 2 and the wheel set 3 along the axial direction of the adapter 2. The clutch member 41 has an engagement position for engaging with the wheel set 3 and a disengagement position for disengaging from the wheel set 3. The clutch structure 4 also includes an electromagnetic drive member 45, the output end of the drive mechanism is connected to the electromagnetic drive member 45, and the clutch member 41 can move axially toward the engagement position under the magnetic force of the electromagnetic drive member 45.

[0122] Furthermore, the clutch structure 4 also includes an elastic reset member disposed between the clutch component 41 and the electromagnetic drive component 45. When the electromagnetic drive component 45 is energized and generates a magnetic field, the clutch component 41 moves under the action of magnetic force to engage with the adapter 2, and the elastic reset member stores energy. At this time, the drive mechanism can drive the adapter 2 to rotate the wheel set 3 through the clutch component 41. When the electromagnetic drive component 45 is de-energized, the magnetic field disappears, the elastic reset member releases its elastic potential energy, and the clutch component 41 moves axially under the elastic force of the elastic reset member and disengages from the adapter 2. At this time, when the child vehicle is pushed manually, the drive mechanism will not generate resistance to the rotation of the wheel set 3, making pushing easier.

[0123] For example, the electromagnetic drive 45 includes an electromagnetic coil, and the clutch 41 is made of a magnetic material. When the electromagnetic coil is energized, a magnetic field is generated, and when the electromagnetic coil is de-energized, the magnetic field disappears.

[0124] Example 5

[0125] This embodiment provides a child vehicle, which differs from Embodiment 1 in that:

[0126] Optionally, the wheelset 3 includes a disc 32 and an axle 31 coaxially disposed on the disc 32, see reference. Figure 10 The connecting components 5 are tubular in shape and have insertion cavities 512 adapted to the wheel axle 31. The wheel axle 31 is rotatably connected to the adapter 2 via a third rotating component 9. In this embodiment, the third rotating component 9 is a one-way bearing. After passing through the inner ring of the one-way bearing, the wheel axle 31 is axially limited within the insertion cavity 512 by a locking mechanism 6. When the drive mechanism drives the connecting components 5 to rotate, the connecting components 5 drive the wheel axle 31 to rotate synchronously via the one-way bearing, thereby realizing the electric drive of the wheel set 3. When the drive mechanism stops operating and the stroller is pushed manually, the wheel axle 31 can drive the inner ring of the one-way bearing to rotate freely, thereby preventing the drive mechanism from generating resistance to the rotation of the wheel axle 31.

[0127] 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 child vehicle, characterized in that, include: Frame; The adapter is rotatably connected to the vehicle frame; The wheel assembly is detachably connected to the adapter. The drive mechanism has a clutch structure between its output end and the adapter. The output end of the drive mechanism can selectively engage or disengage from the adapter through the clutch structure. When the drive mechanism engages with the adapter, it can drive the adapter to rotate the wheel set on the frame.

2. The child vehicle according to claim 1, characterized in that, The clutch structure includes a clutch member movably disposed between the adapter and the drive mechanism along the axial direction of the adapter, the clutch member having an engagement position for engaging with the adapter and a disengagement position for disengaging from the adapter.

3. The child vehicle according to claim 2, characterized in that, The adapter is provided with a first limiting structure, and the clutch is provided with a second limiting structure. In the engagement position, the first limiting structure and the second limiting structure are inserted into each other. One of the first limiting structure and the second limiting structure is a limiting protrusion, and the other is a limiting groove. In the engagement position, the limiting protrusion is inserted into the limiting groove. Multiple limiting protrusions and multiple limiting grooves are provided, and the multiple limiting grooves and multiple limiting protrusions are engaged one-to-one.

4. The child vehicle according to claim 2, characterized in that, The clutch structure further includes a first elastic element extending axially along the adapter, the first elastic element being compressed between the adapter and the clutch, and the clutch being able to move axially toward the separation position under the elastic force of the first elastic element.

5. The child vehicle according to claim 2, characterized in that, The child vehicle also includes a connecting member rotatably mounted on the frame. The output end of the drive mechanism is connected to the connecting member. The connecting member is provided with a first mating part, and the clutch is provided with a second mating part. When the drive mechanism drives the connecting member to rotate, the first mating part and the second mating part engage to drive the clutch to move axially toward the engagement position. Alternatively, the clutch structure may further include an electromagnetic drive unit, the output end of the drive mechanism being connected to the electromagnetic drive unit, and the clutch unit being able to move axially toward the engagement position under the magnetic force of the electromagnetic drive unit. Alternatively, the vehicle frame may be provided with an operating part connected to the clutch, the operating part being configured to drive the clutch to move axially.

6. The child vehicle according to claim 5, characterized in that, The first mating part includes a first guide surface, and the second mating part includes a second guide surface. When the driving mechanism drives the adapter to rotate, the first guide surface and the second guide surface slide together.

7. The child vehicle according to claim 5, characterized in that, The frame includes a frame connection portion, the frame connection portion having a mounting cavity, and the connecting member at least partially extends into the mounting cavity and rotatably engages with the mounting cavity. The clutch structure further includes a limiting member and a second elastic member. The limiting member is movably disposed in the mounting cavity along the axial direction of the adapter and coaxially disposed outside the connecting member. The compression limit of the second elastic member is located between the limiting member and the inner wall of the mounting cavity. The limiting member can abut against the clutch member under the elastic force of the second elastic member to restrict the rotation of the clutch member. The mounting cavity is provided with a first rotating component, and the adapter is rotatably connected to the frame connection part through the first rotating component. A second rotating component is provided inside the mounting cavity, and the connecting member is rotatably connected to the frame connecting part through the second rotating component.

8. The child vehicle according to claim 7, characterized in that, The mounting cavity is provided with a first guide structure, and the limiting member is provided with a second guide structure. The first guide structure and the second guide structure slide in the axial direction of the adapter and can circumferentially limit the limiting member. One of the first guide structure and the second guide structure is a guide groove, and the other is a guide protrusion, wherein the guide protrusion slides in conjunction with the guide groove.

9. The child vehicle according to claim 5, characterized in that, The wheel assembly includes an axle, the connecting member is tubular in shape and has a plug-in cavity adapted to the axle, the adapter has a first shaft hole communicating with the plug-in cavity, the clutch has a second shaft hole communicating with the plug-in cavity, and the axle passes through the first shaft hole and the second shaft hole in sequence and is axially positioned into the plug-in cavity.

10. The child vehicle according to claim 9, characterized in that, The child vehicle also includes a locking mechanism for preventing the wheelset from disengaging from the connecting member along the axial direction of the adapter; The wheel assembly also includes a wheel disc, the wheel axle is coaxially disposed on the wheel disc, a third rotating component is disposed in the insertion cavity, and the wheel axle is rotatably connected to the connecting member through the third rotating component; The locking mechanism includes a locking member that is radially movably disposed on the axle along the axle, the locking member having a locking position positioned at the end face of the third rotating component and an unlocking position disengaged from the third rotating component.

11. The child vehicle according to claim 10, characterized in that, The locking mechanism further includes a trigger rod and a third elastic element. The axle is a hollow axle. The trigger rod is movably disposed in the cavity of the axle along the axial direction of the axle. The third elastic element is constrained along the axial direction of the axle between the trigger rod and the inner wall of the cavity of the axle. Under the action of external force, the trigger rod moves axially, causing the locking member to move toward the unlocking position and the third elastic member to accumulate elastic potential energy; After the external force is removed, the third elastic element drives the trigger rod to move axially, causing the locking element to move toward the locking position; The axle is provided with a movable groove communicating with its cavity. The locking member is movably disposed in the movable groove. The trigger rod is provided with an unlocking groove. In the unlocked position, the unlocking groove is directly opposite the movable groove. The locking member moves at least partially to the unlocking groove to disengage from the third rotating component.

12. The child vehicle according to any one of claims 1-11, characterized in that, The wheelset is provided with a first anti-rotation structure, and the adapter is provided with a second anti-rotation structure. The first anti-rotation structure and the second anti-rotation structure cooperate to restrict the wheelset and the adapter from rotating relative to each other in the circumferential direction. One of the first anti-rotation structure and the second anti-rotation structure is an anti-rotation protrusion and the other is an anti-rotation groove. The anti-rotation protrusion is inserted into the anti-rotation groove. Multiple anti-rotation protrusions and multiple anti-rotation grooves are provided, and multiple anti-rotation protrusions are inserted into multiple anti-rotation grooves in a one-to-one correspondence. The wheel assembly includes a wheel disc, on which an anti-rotation component is provided, and on which the first anti-rotation structure is provided.

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