Child carrier

Abstract

The utility model relates to the technical field of children products, and discloses a children carrier which comprises a frame, a wheel set, a driving mechanism and an anti-rotation mechanism. The wheel set is detachably and rotationally installed on the frame, and the output end of the driving mechanism can be connected with the wheel set and used for driving the wheel set to rotate relative to the frame. The anti-rotation mechanism is arranged between the wheel set and the output end of the driving mechanism and used for limiting the wheel set and the output end of the driving mechanism in the circumferential direction. The wheel set can be independently stored by detaching the wheel set from the frame, so that the space occupied by the child carrier is reduced, and the child carrier is convenient to carry when a user goes out. The arrangement of the anti-rotation mechanism enables the wheel set to coaxially rotate with the output end of the driving mechanism, the coaxiality of the wheel set and the output end is guaranteed, and the rotation stability of the wheel set is improved. According to the child carrier, the coaxiality of the wheel sets and the output end of the driving mechanism can be guaranteed when the wheel sets rotate, the wheel sets can be detached and stored independently, and the use experience feeling is good.

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 alleviate the user's take baby burden, also can provide comfortable ride environment for children. In order to carry conveniently, the child stroller is usually designed as foldable, and when storing, can reduce the space occupation.

[0003] The existing foldable child stroller mostly is only the frame and seat foldable, and the wheels on the frame are still fixed on the frame, and multiple wheels on the frame need to occupy more space, so that the folded child stroller still cannot meet the carrying requirement under the condition that the vehicle space is limited. Although the wheels of the existing part of child strollers can be disassembled, it is difficult to guarantee the coaxiality of the wheel shaft after the wheels are assembled again, which affects the rotation of the wheels, and the use experience is poor.

[0004] Therefore, there is an urgent need for a children's carrier to solve the above problems. SUMMARY

[0005] Based on the above problems, the purpose of the utility model is to provide a children's carrier, which can realize the disassembly and assembly of the wheels and guarantee the coaxiality of the wheels and the wheel shaft, so that the wheels rotate more smoothly.

[0006] 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] Wheel group, dismountably rotatably installed in the frame;

[0010] Driving mechanism, its output end can be engaged with the wheel group, for driving the wheel group rotates relative to the frame;

[0011] Anti-rotation mechanism is arranged between the wheel group and the output end of the driving mechanism, and the anti-rotation mechanism is used to limit the wheel group and the output end of the driving mechanism in the circumferential direction.

[0012] As an optional scheme of the children's carrier of the utility model, the frame includes an adapter, the wheel group includes a wheel shaft, and the wheel shaft is dismountably rotatably connected with the adapter through a rotating part.

[0013] As an optional scheme of the children's carrier of the utility model, the adapter is provided with a mounting cavity, the rotating part includes a bearing arranged in the mounting cavity, and the wheel shaft passes through the inner ring of the bearing and is dismountably connected with the output end of the driving mechanism.

[0014] As an optional scheme of the child carrier of the utility model, the wheel shaft is provided with a plug-in cavity along the axial direction thereof, and the output end of the driving mechanism can be plugged into the plug-in cavity;

[0015] The anti-rotation mechanism comprises a limiting protrusion and a limiting groove, one of the limiting protrusion and the limiting groove is arranged in the plug-in cavity, and the other is arranged at the output end of the driving mechanism; after the output end of the driving mechanism is inserted into the plug-in cavity, the limiting protrusion is engaged with the limiting groove; and / or,

[0016] The cross section of the plug-in cavity and the cross section of the output end of the driving mechanism are both non-circular.

[0017] As an optional scheme of the child carrier of the utility model, the child carrier further comprises a locking mechanism, and the wheel shaft is axially limited to the rotating part through the locking mechanism to limit the wheel shaft from being separated from the adapter along the axial direction.

[0018] As an optional scheme of the child carrier of the utility model, the locking mechanism comprises a locking piece, the locking piece is movably arranged on the wheel shaft along the radial direction of the wheel shaft, and the locking piece has a locking position axially stopped on the rotating part and an unlocking position separated from the rotating part.

[0019] As an optional scheme of the child carrier of the utility model, the locking mechanism further comprises a trigger rod and an elastic piece, the wheel shaft is a hollow shaft, the trigger rod is movably arranged in the cavity of the wheel shaft along the axial direction of the wheel shaft, and the elastic piece is limited between the trigger rod and the inner wall of the cavity of the wheel shaft along the axial direction of the wheel shaft.

[0020] Under the action of external force, the trigger rod moves along the axial direction to move the locking piece towards the unlocking position and make the elastic piece accumulate elastic potential energy;

[0021] After the action of external force is cancelled, the elastic piece drives the trigger rod to move along the axial direction to move the locking piece to reset towards the locking position.

[0022] As an optional scheme of the child carrier of the utility model, the wheel shaft is provided with a movable groove in communication with the cavity thereof, the locking piece is movably arranged in the movable groove, the trigger rod is provided with an unlocking groove, the unlocking groove is opposite to the movable groove when the unlocking position is reached, and the locking piece is at least partially moved to the unlocking groove to separate from the rotating part.

[0023] As an optional scheme of the child carrier of the utility model, the trigger rod is provided with a first limiting part, the cavity of the wheel shaft is provided with a second limiting part, and the first limiting part can abut against the second limiting part in the axial direction to limit the moving stroke of the trigger rod in the axial direction.

[0024] The third limiting part is arranged on the trigger rod, the fourth limiting part is arranged in the cavity of the wheel shaft, and the elastic member is sleeved on the trigger rod and limited between the third limiting part and the fourth limiting part.

[0025] As an optional scheme of the child carrier, the adapter comprises a first connecting sleeve and a second connecting sleeve coaxially arranged outside the first connecting sleeve, and the rotating part is arranged in the first connecting sleeve;

[0026] The wheel set further comprises a wheel disc, the wheel shaft is coaxially arranged in the wheel disc, the wheel disc is provided with a protruding part, the second connecting sleeve is provided with a recessed groove, and the protruding part can be embedded in the recessed groove and gap-fitted with the recessed groove.

[0027] The child carrier has the advantages that:

[0028] The child carrier provided by the utility model can be used to detach the wheel set from the frame when being stored, realize separate storage of the wheel set, reduce the size of the child carrier after being folded and stored, reduce the space occupied by the child carrier, and facilitate the user to carry it out. The anti-rotation mechanism is arranged to enable the wheel set to rotate coaxially with the output end of the driving mechanism, ensure the coaxiality of the two, and improve the rotation stability of the wheel set. That is, the child carrier can ensure the coaxiality of the wheel set and the output end of the driving mechanism during rotation, and realize separate detachment and storage of the wheel set, and the use experience is good. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings without creative labor.

[0030] Figure 1 is the exploded view of the wheel set and the adapter provided in the specific embodiment of the utility model;

[0031] Figure 2 is the cross-sectional view of the wheel set and the adapter provided in the specific embodiment of the utility model;

[0032] Figure 3 is Figure 2 is the local enlarged view of A in Fig.

[0033] Figure 4 is the structural schematic view of the wheel shaft provided in the specific embodiment of the utility model.

[0034] In the drawings:

[0035] 1-adapter; 2-wheel set; 3-driving mechanism; 4-rotating part; 5-locking mechanism;

[0036] 11-first connecting sleeve; 12-second connecting sleeve;

[0037] 111-mounting cavity; 121-recessed groove;

[0038] 21-wheel shaft; 22-wheel disc;

[0039] 211-plug-in cavity; 212-moving groove; 213-second limiting part; 214-fourth limiting part; 221-protruding part;

[0040] 31-output shaft;

[0041] 51-locking piece; 52-trigger lever; 53-elastic piece;

[0042] 521-unlocking groove; 522-first limiting part; 523-third limiting part. DETAILED DESCRIPTION

[0043] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0044] 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 shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting 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.

[0045] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication, for the ordinary skill in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0046] As Figures 1 to 4 Indicated, the present embodiment provides a kind of child carrier, can realize the disassembly of wheel, and can guarantee that wheel rotates smoothly.The child carrier includes frame, wheel group 2, drive mechanism 3 and anti-rotation mechanism.

[0047] Wherein, wheel group 2 is detachably rotatably installed on the frame, the output end of drive mechanism 3 can be engaged with wheel group 2, for driving wheel group 2 relative to the frame rotation.Anti-rotation mechanism is arranged between wheel group 2 and the output end of drive mechanism 3, and the anti-rotation mechanism is used to limit wheel group 2 and the output end of drive mechanism 3 in circumferential direction.

[0048] When storing child carrier, wheel group 2 can be removed from the frame, realize the independent storage of wheel group 2, reduce the volume of child carrier after folding storage, reduce the space occupied by child carrier, facilitate user to carry outside.The setting of anti-rotation mechanism makes wheel group 2 can rotate coaxially with the output end of drive mechanism 3, guarantee the coaxiality of both, to improve the rotation stability of wheel group 2.That is, the child carrier can guarantee the coaxiality of wheel group 2 and the output end of drive mechanism 3 when rotating, and can realize the independent disassembly of wheel group 2, and the use experience is good.In addition, the setting of drive mechanism 3 realizes the electric drive of wheel group 2, so that child carrier can move automatically, without user to push.

[0049] Optionally, referring to Figure 1 And Figure 2 , frame includes adapter 1, wheel group 2 includes wheel shaft 21, and wheel shaft 21 is detachably rotatably connected with adapter 1 through rotating part 4.Such setting, can realize the rotation cooperation of wheel shaft 21 and the adapter 1 of frame, and can realize the disassembly of wheel group 2.

[0050] Specifically, in the embodiment, adapter 1 is provided with mounting cavity 111, rotating part 4 includes bearing arranged in mounting cavity 111, wheel shaft 21 passes through the inner ring of bearing and is detachably connected with the output end of drive mechanism 3.The outer ring of bearing is fixedly connected with the inner wall of mounting cavity 111, and wheel shaft 21 is connected with the output end of drive mechanism 3 after passing through the inner ring of bearing, and drive mechanism 3 directly drives wheel shaft 21 to rotate relative to adapter 1, to realize that drive mechanism 3 drives wheel group 2 to rotate.The setting of bearing can make wheel shaft 21 rotate more smoothly relative to adapter 1, improve the rotation stability of wheel group 2.

[0051] Further, referring to Figure 1 and Figure 2 , the adapter 1 comprises a first connecting sleeve 11 and a second connecting sleeve 12 coaxially arranged outside the first connecting sleeve 11, and the rotating part 4 is arranged in the first connecting sleeve 11. The wheel set 2 further comprises a wheel disc 22, and the wheel shaft 21 is coaxially arranged in the wheel disc 22. The wheel disc 22 is provided with a protruding part 221, and the second connecting sleeve 12 is provided with a recessed groove 121. The protruding part 221 can be embedded in the recessed groove 121 and is in clearance fit with the recessed groove 121. In the embodiment, the protruding part 221 is protruded along the axial direction of the wheel disc 22, and the second connecting sleeve 12 has a certain thickness. The recessed groove 121 is recessed in the end surface of the second connecting sleeve 12 along the axial direction of the second connecting sleeve 12. When the wheel set 2 is installed in place, the protruding part 221 of the wheel disc 22 can be embedded in the recessed groove 121, so that the wheel shaft 21 is not exposed, and the external appearance is neat and beautiful. Since there is a clearance between the protruding part 221 and the recessed groove 121, the second connecting sleeve 12 will not interfere with the rotation of the wheel set 2. The arrangement of the second connecting sleeve 12 can increase the structural strength of the connection between the adapter 1 and the wheel set 2, prevent the adapter 1 from deforming, and further improve the rotation stability of the wheel set 2.

[0052] Optionally, referring to Figure 2 and Figure 3 , the wheel shaft 21 is provided with a plug-in cavity 211 along the axial direction thereof, and the output end of the driving mechanism 3 can be plugged into the plug-in cavity 211. The anti-rotation mechanism is arranged between the plug-in cavity 211 and the output end of the driving mechanism 3 to circumferentially limit the wheel shaft 21 and the output end of the driving mechanism 3, so that the wheel shaft 21 can rotate coaxially with the adapter 1, the coaxiality of the wheel shaft 21 and the output end of the driving mechanism 3 is ensured, the rotation smoothness of the wheel set 2 is improved, and the movement of the child carrier is more flexible.

[0053] Illustratively, the driving mechanism 3 is a rotary motor, the rotary motor is located in the mounting cavity 111, the output shaft 31 of the rotary motor is plugged into the plug-in cavity 211, and the rotary motor drives the wheel shaft 21 to rotate synchronously after being started.

[0054] Optionally, the anti-rotation mechanism comprises a limiting protrusion and a limiting groove, one of the limiting protrusion and the limiting groove is arranged in the plug-in cavity 211, and the other is arranged at the output end of the driving mechanism 3. After the output end of the driving mechanism 3 is inserted into the plug-in cavity 211, the limiting protrusion and the limiting groove are engaged. For example, the limiting groove is arranged on the inner wall of the plug-in cavity 211, and the limiting protrusion is arranged at the output end of the driving mechanism 3. Illustratively, the limiting protrusion is a limiting key protruded on the output shaft 31, and the limiting groove is a key groove recessed on the inner wall of the plug-in cavity 211.

[0055] In other embodiments, the cross-sectional shape of the plug-in cavity 211 can also be designed as a non-circular shape, and correspondingly, the cross-sectional shape of the output shaft 31 of the driving mechanism 3 is also designed as a non-circular shape. After the output shaft 31 is inserted into the plug-in cavity 211, the circumferential limiting of the two can be realized.

[0056] Optionally, referring to Figure 2 , Figure 3 and Figure 4 , the child carrier further comprises a locking mechanism 5, the wheel shaft 21 is axially limited by the locking mechanism 5 to the rotating part 4 to limit the wheel shaft 21 from being detached from the rotating joint 1 in the axial direction. That is, the locking mechanism 5 can axially limit the wheel set 2 to the rotating joint 1 to prevent the wheel set 2 from being detached from the rotating joint 1, and to ensure that the wheel set 2 is firmly installed. When it is necessary to dismount the wheel set 2, the locking mechanism 5 is only needed to be unlocked, the axial limitation of the wheel shaft 21 is released, and then the wheel shaft 21 is detached from the rotating joint 1, which is simple and easy to realize.

[0057] Optionally, referring to Figure 3 and Figure 4 , the locking mechanism 5 comprises a locking piece 51, which is movably arranged on the wheel shaft 21 in the radial direction of the wheel shaft 21, and the locking piece 51 has a locking position axially abutting against the rotating part 4 and an unlocking position away from the rotating part 4. After the wheel shaft 21 is installed in place in the installation cavity 111, the locking piece 51 is moved in the radial direction of the wheel shaft 21 to the locking position to lock the axial position of the wheel shaft 21, prevent the wheel set 2 from being detached from the frame, and ensure that the wheel set 2 is firmly installed. In this embodiment, the rotating part 4 is a bearing, and after the wheel shaft 21 passes through the inner ring of the bearing, the locking piece 51 abuts against the end face of the bearing.

[0058] Further, the locking mechanism 5 further comprises a trigger rod 52 and an elastic piece 53, the wheel shaft 21 is a hollow shaft, the trigger rod 52 is movably arranged in the cavity of the wheel shaft 21 in the axial direction of the wheel shaft 21, and the elastic piece 53 is limited between the trigger rod 52 and the inner wall of the cavity of the wheel shaft 21 in the axial direction of the wheel shaft 21. Under the action of external force, the trigger rod 52 moves in the axial direction to move the locking piece 51 towards the unlocking position and make the elastic piece 53 accumulate elastic potential energy. After the action of external force is cancelled, the elastic piece 53 drives the trigger rod 52 to move in the axial direction to move the locking piece 51 towards the locking position and reset.

[0059] Specifically, when unlocking the wheel set 2, an external force is applied to the trigger rod 52 to move the trigger rod 52 in the axial direction, thereby driving the locking piece 51 to move in the radial direction of the wheel shaft 21 and away from the rotating part 4, to realize unlocking. After the trigger rod 52 is released, the trigger rod 52 reversely moves under the action of the elastic force of the elastic piece 53, thereby driving the locking piece 51 to move in the radial direction of the wheel shaft 21 and extend, and abutting against the rotating part 4, to realize axially locking the wheel shaft 21.

[0060] Optionally, referring to Figure 3 and Figure 4The wheel shaft 21 is provided with a movable slot 212 communicating with the cavity, and the locking member 51 is movably arranged in the movable slot 212. The trigger lever 52 is provided with an unlocking slot 521. When the unlocking slot 521 is opposite to the movable slot 212, the locking member 51 is at least partially moved into the unlocking slot 521 to be separated from the rotating part 4.

[0061] Specifically, as shown in Figure 2 and Figure 3 , the wheel set 2 is assembled with the adapter 1 of the frame, the locking member 51 is stopped at the rotating part 4 (locking position), and the elastic member 53 is in a compressed state. When the wheel set 2 is disassembled, referring to the orientation in Figure 2 , the trigger lever 52 is axially driven to move right by an external force, and the elastic member 53 is compressed and stored energy. When the unlocking slot 521 on the trigger lever 52 moves to be opposite to the movable slot 212, the locking member 51 can fall into the unlocking slot 521 under the action of its own gravity, and at the same time, the locking member 51 is separated from the rotating part 4, so as to unlock the wheel set 2 and the adapter 1. At this time, the wheel shaft 21 can be separated from the mounting cavity 111 of the adapter 1. When the wheel shaft 21 is separated from the adapter 1, the external force on the trigger lever 52 is removed, the elastic member 53 releases the elastic potential energy, and the trigger lever 52 is axially moved relative to the wheel shaft 21 again. The unlocking slot 521 is misaligned with the movable slot 212, and the trigger lever 52 drives the locking member 51 to switch to the locking position.

[0062] Optionally, an unlocking button can be arranged on the wheel set 2, and the unlocking button is connected with the trigger lever 52. The trigger lever 52 is driven to be unlocked by axially pressing the unlocking button, and the unlocking operation is more convenient.

[0063] Optionally, referring to Figure 3 and Figure 4 , the trigger lever 52 is provided with a first limiting part 522, and the cavity of the wheel shaft 21 is provided with a second limiting part 213. The first limiting part 522 can abut against the second limiting part 213 in the axial direction, so as to limit the moving stroke of the trigger lever 52 in the axial direction. The first limiting part 522 and the second limiting part 213 cooperate to prevent the trigger lever 52 from being separated from the wheel shaft 21, so that the locking member 51 can be accurately unlocked or locked.

[0064] Exemplarily, the locking member 51 is a spherical structure, the first limiting part 522 is an annular protrusion arranged on the trigger lever 52, and the second limiting part 213 is a stepped groove arranged on the inner wall of the cavity of the wheel shaft 21.

[0065] Further, the trigger rod 52 is provided with a third limiting portion 523, the cavity of the wheel shaft 21 is provided with a fourth limiting portion 214, and the elastic member 53 is sleeved on the trigger rod 52 and is limited between the third limiting portion 523 and the fourth limiting portion 214. The third limiting portion 523 and the fourth limiting portion 214 cooperate to make the elastic member 53 only able to stretch and contract in a limited space, and further generate an axial force on the trigger rod 52, so that the trigger rod 52 is automatically moved in the axial direction to drive the locking member 51 to move to the locking position and keep in the locking state.

[0066] Exemplarily, the elastic member 53 is a spring, the third limiting portion 523 is a limiting ring sleeved on the trigger rod 52, and the fourth limiting portion 214 is a stepped groove recessed on the inner wall of the cavity of the wheel shaft 21.

[0067] It should be noted that the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A child carrier, characterized in that, The child carrier comprises: a frame; a wheel set rotatably mounted on the frame; a driving mechanism, an output end of which is capable of engaging with the wheel set for driving the wheel set to rotate relative to the frame; a rotation-preventing mechanism arranged between the wheel set and the output end of the driving mechanism, the rotation-preventing mechanism being configured to circumferentially limit the wheel set and the output end of the driving mechanism.

2. The child carrier of claim 1, wherein, The frame comprises a rotating joint, and the wheel set comprises an axle, the axle being rotatably connected to the rotating joint via a rotating component.

3. The child carrier of claim 2, wherein, The rotating joint is provided with a mounting cavity, and the rotating component comprises a bearing arranged in the mounting cavity, the axle penetrating the inner ring of the bearing and being detachably connected to the output end of the driving mechanism.

4. The child carrier of claim 3, wherein, The axle is provided with a plug-in cavity along the axial direction thereof, and the output end of the driving mechanism is capable of being plugged into the plug-in cavity. The rotation-preventing mechanism comprises a limiting protrusion and a limiting groove, one of the limiting protrusion and the limiting groove being arranged in the plug-in cavity, and the other being arranged on the output end of the driving mechanism, the limiting protrusion and the limiting groove being engaged after the output end of the driving mechanism is plugged into the plug-in cavity; and / or The cross section of the plug-in cavity and the cross section of the output end of the driving mechanism are both non-circular.

5. The child carrier of claim 2, wherein, The child carrier further comprises a locking mechanism, the axle being axially limited to the rotating component via the locking mechanism to limit the axle from being separated from the rotating joint in the axial direction.

6. The child carrier of claim 5, wherein, The locking mechanism comprises a locking member, the locking member being movably arranged on the axle along the radial direction of the axle, the locking member having a locking position at which the locking member is axially stopped on the rotating component and an unlocking position at which the locking member is separated from the rotating component.

7. The child carrier of claim 6, wherein, The locking mechanism further comprises a trigger lever and an elastic member, the axle being a hollow axle, the trigger lever being movably arranged in the hollow cavity of the axle along the axial direction of the axle, and the elastic member being limited between the trigger lever and the inner wall of the hollow cavity of the axle along the axial direction of the axle; Under the action of an external force, the trigger lever moves in the axial direction to move the locking member towards the unlocking position and to accumulate elastic potential energy of the elastic member; After the action of the external force is removed, the elastic member drives the trigger lever to move in the axial direction to move the locking member to return to the locking position.

8. The child carrier of claim 7, wherein, The axle is provided with a movable slot in communication with the hollow cavity thereof, the locking member being movably arranged in the movable slot, the trigger lever being provided with an unlocking slot, the unlocking slot being opposite to the movable slot when the locking member is in the unlocking position, and the locking member being at least partially arranged in the unlocking slot to be separated from the rotating component.

9. The child carrier of claim 7, wherein, The trigger lever is provided with a first limiting portion, and the hollow cavity of the axle is provided with a second limiting portion, the first limiting portion being capable of abutting against the second limiting portion in the axial direction to limit the moving stroke of the trigger lever in the axial direction; The trigger lever is provided with a third limiting portion, and the hollow cavity of the axle is provided with a fourth limiting portion, the elastic member being sleeved on the trigger lever and being limited between the third limiting portion and the fourth limiting portion.

10. Child carrier according to any one of claims 2-9, characterized in that, The rotating joint comprises a first connecting sleeve and a second connecting sleeve coaxially arranged outside the first connecting sleeve, and the rotating component is arranged in the first connecting sleeve. The wheel set further comprises a wheel disc, the wheel shaft is coaxially arranged on the wheel disc, the wheel disc is provided with a protruding part, the second connecting sleeve is provided with a recessed groove, and the protruding part can be embedded in the recessed groove and gap-fitted with the recessed groove.

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