Wheel assembly and child's article of equipment

Abstract

The utility model belongs to children's articles technical field discloses a wheel assembly and children's articles. Wheel assembly includes wheel body, locking assembly and axle body. Axle body and wheel body are detachably connected and fixed, the outer wall of axle body is provided with the locking slot of extension setting along the circumferential direction of axle body, locking assembly includes the locking piece of activity setting on wheel body, locking piece is in locking position and unlocking position, when in locking position, locking piece is positioned to locking slot to limit wheel body and axle body along the axial direction of axle body and separate, when in unlocking position, locking piece separates locking slot. The wheel assembly provided by the utility model is used, and axle body is installed on the main body structure of children's articles, and wheel body can be conveniently detached from axle body, so that the occupied space of children's articles in transportation is saved.

Description

Technical Field

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

[0002] A stroller is a tool vehicle used by children for play, which can bring certain benefits to children's intellectual development and enhance their brain development.

[0003] Modern families often bring strollers when traveling; however, since car trunk space is limited, removing the stroller's wheels can effectively reduce the space it occupies.

[0004] However, in the existing technology, the wheels of strollers are generally not easy to remove, which makes it impossible to quickly remove the stroller wheels when the family goes on a trip, affecting the storage space in the car trunk. Utility Model Content

[0005] The purpose of this utility model is to provide a wheel assembly and children's products, the wheel body of which can be easily disassembled and assembled, so as to reduce the space occupied by children's products during transportation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Wheel assembly, including:

[0008] Wheel body;

[0009] The shaft is detachably connected and fixed to the wheel body, and a locking groove extending along the circumferential direction of the shaft is provided on the outer wall of the shaft.

[0010] A locking assembly includes a locking member movably disposed on the wheel body, the locking member being movable in a locked position and an unlocked position. In the locked position, the locking member is positioned into the locking groove to prevent the wheel body from disengaging from the shaft body in the axial direction of the shaft body; in the unlocked position, the locking member disengages from the locking groove.

[0011] Optionally, the wheel body is provided with a mounting hole adapted to the axle body and a sliding hole communicating with the mounting hole, the axle body is positioned to the mounting hole, and the locking member is slidably disposed on the wheel body along the sliding hole;

[0012] After the shaft is positioned, the sliding hole and the locking groove are positioned opposite each other.

[0013] Optionally, the locking assembly further includes a reset member disposed between the wheel and the locking member;

[0014] Under the action of external force, the locking member moves toward the locking position and causes the reset member to accumulate elastic potential energy;

[0015] After the external force is removed, the reset member drives the locking member to reset and move toward the locked position;

[0016] The reset component includes a compression spring disposed between the wheel and the locking component, with both ends of the compression spring abutting against the locking component and the wheel, respectively.

[0017] Optionally, the locking member is provided with a limiting groove, and the wheel body is provided with a limiting member that movably engages with the limiting groove, the limiting member being able to limit the movement stroke of the locking member.

[0018] Optionally, the locking component is provided with a through hole that mates with the shaft. The through hole can move with the locking component. In the locked position, the axis of the through hole is misaligned with the axis of the shaft. In the unlocked position, the shaft can disengage from the through hole.

[0019] On the locking assembly, a first guide avoidance slope is provided on the inner circumferential surface of the end of the through hole facing the shaft.

[0020] Optionally, the wheel assembly further includes an anti-rotation mechanism that restricts the wheel body from rotating relative to the shaft body in the circumferential direction of the shaft body; the anti-rotation mechanism includes an anti-rotation member fixed on the wheel body, and the shaft body is provided with a groove structure that engages with the anti-rotation member.

[0021] Optionally, the wheel body is provided with a mounting hole adapted to the shaft body, the anti-rotation component is provided on the inner wall of the mounting hole and protrudes towards the center of the mounting hole, and the groove structure is provided on the outer wall of the shaft body; or, the shaft body is tubular, and the groove structure penetrates the shaft body;

[0022] Alternatively, the anti-rotation component includes several positioning protrusions disposed on the side of the wheel body facing the shaft body, and an annular support plate is disposed on the outer wall of the shaft body, with the groove structure disposed on the annular support plate.

[0023] Optionally, the wheel assembly further includes a drive component, which is drivenly connected to the axle, and the axle is capable of driving the wheel to rotate synchronously.

[0024] Optionally, the shaft is tubular, and the wheel is provided with a wheel pin inserted into the shaft.

[0025] Children's products include a frame and a wheel assembly disposed on the frame, the wheel assembly being the aforementioned wheel assembly; the axle of the wheel assembly is disposed on the frame.

[0026] The beneficial effects of this utility model are:

[0027] The wheel assembly provided by this utility model allows the axle to be installed on the main structure of the child product (such as the frame of a stroller or a crib frame). The wheel can be easily detached from the axle, saving space during transportation. When the locking groove and locking element are in the locked position, the axle is installed on the wheel, allowing the child product to move normally. To remove the wheel, the locking element is moved relative to the wheel, releasing the lock between the locking groove and the locking element. This releases the lock between the groove and the locking element, allowing the wheel to be removed from the axle. To reinstall the wheel, the wheel is simply installed on the axle, ensuring the locking groove and locking element are in the locked position.

[0028] The children's products provided by this utility model have an axle mounted on the main structure of the children's products (such as the frame of a stroller or the frame of a crib), and the wheels can be easily removed from the axle, which helps to save space occupied by the children's products during transportation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the wheel assembly provided in an embodiment of the present invention;

[0031] Figure 2 yes Figure 1 Sectional view of section AA;

[0032] Figure 3 yes Figure 2 Enlarged view of point B in the middle;

[0033] Figure 4 This is an exploded structural diagram of the wheel assembly provided in an embodiment of the present invention;

[0034] Figure 5 yes Figure 4 Enlarged view of point C in the middle;

[0035] Figure 6 This is a schematic diagram of the locking component provided in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the locking member provided in this embodiment of the utility model. Figure 1 ;

[0037] Figure 8 This is a schematic diagram of the structure of the locking member provided in this embodiment of the utility model. Figure 2 ;

[0038] Figure 9 This is a schematic diagram of the structure of the locking member provided in this embodiment of the utility model. Figure 3 ;

[0039] Figure 10 This is a schematic diagram of the structure of the locking member provided in this embodiment of the utility model. Figure 4 ;

[0040] Figure 11 This is a schematic diagram of a wheel body provided in an embodiment of the present utility model;

[0041] Figure 12 yes Figure 11 Enlarged view at point D;

[0042] Figure 13 This is a partially enlarged view of another structure of the wheel body provided in this embodiment of the utility model;

[0043] Figure 14 This is a partially enlarged view of another structure of the wheel body provided in this embodiment of the utility model;

[0044] Figure 15 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 1 ;

[0045] Figure 16 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 2 ;

[0046] Figure 17 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 3 ;

[0047] Figure 18 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 4 ;

[0048] Figure 19 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 5 ;

[0049] Figure 20 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 6 ;

[0050] Figure 21 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 7 ;

[0051] Figure 22 This is a schematic diagram of the structure of the shaft provided in this embodiment of the utility model. Figure 8 .

[0052] In the picture:

[0053] 1. Wheel body; 11. Wheel body pin; 12. Mounting hole; 13. Sliding hole;

[0054] 2. Locking assembly; 21. Locking element; 211. Limiting groove; 212. Through hole; 2121. First guide clearance slope; 22. Reset element;

[0055] 3. Shaft body; 31. Locking groove; 32. Flange; 321. Anti-rotation hole; 33. Hole structure; 34. Groove structure; 35. Second guide avoidance slope; 36. Petal structure; 361. Third guide avoidance slope;

[0056] 4. Anti-rotation component. Detailed Implementation

[0057] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0058] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction 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.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0061] Example 1

[0062] See Figures 1-6 This embodiment provides a wheel assembly that can be applied to children's products, such as strollers. The wheel assembly can be packaged and transported separately during the transportation of the stroller to reduce the space occupied during transportation. After transportation, the wheel assembly can be quickly installed on the stroller frame. Alternatively, when the user needs to go out, the wheel assembly can be removed from the stroller frame to reduce the space occupied by the stroller and make it more convenient for the user to go out.

[0063] Alternatively, the stroller can be a baby stroller or a child-assisted vehicle.

[0064] Of course, this wheel assembly can also be used in other types of children's products, such as cribs. In this way, the wheel assembly can be packaged and transported separately during the transportation of the crib to reduce the space occupied during transportation. After the transportation is completed, the wheel assembly can be quickly installed on the crib frame.

[0065] Specifically, see Figures 1-5 In this embodiment, the wheel assembly includes a wheel body 1, a locking assembly 2, and an axle 3.

[0066] The shaft 3 is detachably connected and fixed to the wheel 1, and a locking groove 31 extending along the circumferential direction of the shaft 3 is provided on the outer wall of the shaft 3.

[0067] The locking assembly 2 includes a locking member 21 movably disposed on the wheel body 1. The locking member 21 is movable in a locked position and an unlocked position. In the locked position, the locking member 21 is positioned in the locking groove 31 to restrict the wheel body 1 from disengaging from the shaft body 3 in the axial direction of the shaft body 3. In the unlocked position, the locking member 21 disengages from the locking groove 31.

[0068] Understandably, taking a children's stroller as an example, the axle 3 is set on the stroller's frame.

[0069] When the locking groove 31 and the locking piece 21 are in the locked position, the axle 3 is installed on the wheel 1, and the stroller can walk normally through the wheel 1. When the wheel 1 needs to be removed, control the locking piece 21 to move relative to the wheel 1, release the lock between the locking groove 31 and the locking piece 21, that is, control the locking piece 21 to move relative to the wheel 1, so that the locking groove 31 and the locking piece 21 are in the unlocked position, and then the wheel 1 can be removed from the axle 3.

[0070] When it is necessary to reinstall wheel 1 onto shaft 3, simply install wheel 1 onto shaft 3 and ensure that locking groove 31 and locking element 21 are in the locked position.

[0071] The wheel assembly provided in this embodiment facilitates the assembly and disassembly of the wheel 1 onto the axle 3. Users carrying children's products can easily remove the wheel 1 when traveling, thereby reducing the space occupied by the children's products and making travel more convenient. After arriving at the destination, users can reassemble the wheel 1 onto the axle 3 to ensure the normal use of the children's products.

[0072] Optionally, a bearing is fitted on the shaft 3, and after the shaft 3 is installed on the wheel 1, the bearing is located between the shaft 3 and the wheel 1.

[0073] Specifically, see Figure 3 and Figure 4 In this embodiment, the wheel body 1 is provided with a mounting hole 12 that is adapted to the shaft body 3 and a sliding hole 13 that communicates with the mounting hole 12. The shaft body 3 is positioned to the mounting hole 12, and the locking member 21 is slidably disposed on the wheel body 1 along the sliding hole 13.

[0074] After the shaft body 3 is positioned, the sliding hole 13 and the locking groove 31 are positioned opposite each other.

[0075] With this configuration, once the shaft 3 is positioned, the locking element 21 can slide along the sliding hole 13 until it engages with the locking groove 31.

[0076] Furthermore, in order to enable the locking member 21 to switch between the locked position and the unlocked position, in this embodiment, the locking component 2 also includes a reset member 22, which is disposed between the wheel body 1 and the locking member 21.

[0077] Under the action of external force, the locking member 21 moves toward the locking position and causes the reset member 22 to accumulate elastic potential energy.

[0078] After the external force is removed, the reset member 22 drives the locking member 21 to move back to the locked position.

[0079] For example, when it is necessary to lock the shaft 3 onto the wheel 1, press the locking member 21 toward the locking position, the reset member 22 accumulates elastic potential energy, then insert the shaft 3 into the mounting hole 12, and then release the locking member 21. The reset member 22 drives the locking member 21 to reset and move toward the locking position until the locking member 21 locks with the locking groove 31.

[0080] When it is necessary to remove the shaft 3, press the locking piece 21 so that the shaft 3 can be pulled out from the mounting hole 12, and then release the locking piece 21.

[0081] Specifically, in this embodiment, the reset member 22 includes a compression spring disposed between the wheel body 1 and the locking member 21, with both ends of the compression spring abutting against the locking member 21 and the wheel body 1 respectively.

[0082] Specifically, see Figure 3 and Figure 6 In this embodiment, the locking component 2 is provided with a through hole 212 that cooperates with the shaft 3. The through hole 212 can move with the locking component 2. In the locked position, the axis of the through hole 212 is misaligned with the axis of the shaft 3. In the unlocked position, the shaft 3 can disengage from the through hole 212.

[0083] The perforation 212 can move with the locking component 2. In the locked position, the axis of the perforation 212 is misaligned with the axis of the shaft 3. In the unlocked position, the shaft 3 can disengage from the perforation 212.

[0084] Specifically, see Figure 3 When the locking member 21 locks with the locking groove 31, the axis of the through hole 212 is misaligned with the axis of the shaft 3 to prevent the shaft 3 from disengaging from the through hole 212. At the same time, the reset member 22 has elastic potential energy to drive the locking member 21 to lock with the locking groove 31. Under the action of the elastic potential energy of the reset member 22, the inner ring surface of the through hole 212 on the locking member 21 abuts against the bottom of the locking groove 31, so that the wheel 1 and the shaft 3 are stably locked together.

[0085] Specifically, see Figure 2 and Figure 3 At this time, the locking member 21 is in the locked position, the reset member 22 is compressed and accumulates elastic potential energy, the reset member 22 is elastically connected with the locking member 21 and applies an upward force to the locking member 21, so that the axis of the through hole 212 is misaligned with the axis of the shaft 3, thereby making the locking member 21 engage with the locking groove 31 of the shaft 3 and the bottom of the locking groove 31 abut against it. At this time, the shaft 3 cannot move along its own axis direction, and the shaft 3 is locked together with the wheel 1.

[0086] When it is necessary to remove wheel 1, Figure 3Taking the position shown as an example, press down on the locking member 21, and the reset member 22 is further compressed. The locking member 21 is disengaged from the locking groove 31 of the shaft 3. At this time, the shaft 3 can be disengaged from the through hole 212, so that the wheel 1 can be disassembled.

[0087] After removing wheel 1, simply loosen locking piece 21.

[0088] Understandably, after the wheel 1 is disassembled, under the elastic force of the reset member 22, the locking member 21 will be positioned higher than... Figure 3 The position of the locking component 21.

[0089] Specifically, a mounting space for mounting the locking component 2 is provided inside the wheel body 1. Within the mounting space, one end of the reset component 22 is fixedly connected to the inner wall of the mounting space, and the other end of the reset component 22 is fixedly connected to the locking component 21. Optionally, the fixed connection can be made by welding.

[0090] See Figure 7 Optionally, in some embodiments, a first guide avoidance slope 2121 is provided on the inner circumferential surface of the locking component 2 at the end of the through hole 212 facing the shaft 3. The first guide avoidance slope 2121 is located at the end of the through hole 212 facing the shaft 3, so that the shaft 3 can quickly pass through the through hole 212.

[0091] See Figure 8 Optionally, in some embodiments, the inner diameter of the perforation 212 can always remain consistent, reducing the processing cost of the first guide avoidance slope 2121.

[0092] See Figure 9 Optionally, in some embodiments, the locking member 21 is provided with a limiting groove 211, and the wheel body 1 is provided with a limiting member (not shown in the figure) that is movably engaged with the limiting groove 211. The limiting member can limit the movement of the locking member 21.

[0093] Specifically, the limiting groove 211 is an oblong hole extending radially along the wheel body 1. The cooperation between the limiting groove 211 and the limiting member makes the unlocking operation easier. For example, when unlocking is required, the locking member 21 is pressed towards the axis of the wheel body 1. When the side wall of the limiting groove 211 and the limiting member abut, it indicates that the pressing is in place. At this time, the shaft body 3 is aligned with the through hole 212, and the wheel body 1 can be smoothly disengaged from the shaft body 3.

[0094] Optionally, in some embodiments, the perforation 212 can be Figures 7-9 The circular structure shown can also be Figure 10 The non-circular structure shown can be locked together as long as the locking member 21 can be locked with the locking groove 31.

[0095] Specifically, in Figure 10 In China, with Figure 10 Taking the orientation shown as an example, the perforation 212 is a non-circular structure. Under the elastic force of the reset member 22, the portion of the locking member 21 located around the perforation 212 can be locked together with the locking groove 31. This design reduces costs on the one hand, and facilitates the lightweight design of the product on the other.

[0096] Specifically, in this embodiment, the shaft 3 can drive the wheel 1 to rotate. In order to ensure that the shaft 3 can smoothly drive the wheel 1 to rotate, the wheel assembly also includes an anti-rotation mechanism that restricts the wheel 1 from rotating relative to the shaft 3 in the circumferential direction.

[0097] See Figure 5 , Figure 11 and Figure 12 The anti-rotation mechanism includes an anti-rotation component 4 fixed on the wheel body 1, and a groove structure 34 on the shaft body 3 that is inserted and engaged with the anti-rotation component 4.

[0098] When the shaft 3 is locked to the wheel 1, the anti-rotation member 4 passes through the groove structure 34, and the opposite sides of the anti-rotation member 4 abut against the opposite two sides of the groove structure 34, thereby restricting the relative rotation of the shaft 3 and the wheel 1.

[0099] Optionally, see Figure 12 and Figure 20 The wheel body 1 is provided with a mounting hole 12 that is adapted to the shaft body 3. The anti-rotation component 4 is provided on the inner wall of the mounting hole 12 and protrudes towards the center of the mounting hole 12. The groove structure 34 is provided on the outer wall of the shaft body 3.

[0100] Or, see Figure 19 The shaft 3 is tubular, and the groove structure 34 penetrates the shaft 3;

[0101] Or, see Figure 14 The anti-rotation component 4 includes several positioning protrusions on the side of the wheel body 1 facing the shaft body 3. An annular support plate is provided on the outer wall of the shaft body 3, and the groove structure 34 is provided on the annular support plate.

[0102] Specifically, see Figure 5 , Figures 11-13 The axle 3 is tubular, and the wheel body 1 is provided with a wheel pin 11 inserted into the axle 3.

[0103] Specifically, the wheel body 1 has a wheel pin 11 inside the mounting hole 12, and the axle 3 has a hole structure 33 that mates with the wheel pin 11. When the axle 3 is connected to the wheel body 1, the wheel pin 11 passes through the hole structure 33. The presence of the wheel pin 11 ensures the connection strength between the axle 3 and the wheel body 1.

[0104] Optionally, see Figure 12 In some embodiments, the anti-rotation element 4 is a pin extending radially along the wheel body pin shaft 11.

[0105] Optionally, see Figure 13 In some embodiments, the anti-rotation component 4 is a raised rib or key provided on the side of the wheel pin 11.

[0106] Optionally, see Figure 15 For a structure with a wheel pin 11 and an anti-rotation component 4 on the side of the wheel pin 11, a hole structure 33 is provided at the end of the shaft 3, and a groove structure 34 that mates with the anti-rotation component 4 is provided on the side of the end of the shaft 3.

[0107] Specifically, the groove structures 34 are spaced apart circumferentially along the shaft 3, and the number of groove structures 34 can be set as needed. (Optional) Figure 15 and Figure 16 The four in the middle can also be Figure 17 The two options can be set as needed; no further restrictions are imposed here.

[0108] Optionally, the groove structure 34 can be a through groove that penetrates the side wall of the shaft body 3.

[0109] Optionally, see Figure 15 In some embodiments, the end face of the shaft 3 is provided with a second guide avoidance slope 35, the presence of which enables the shaft 3 to quickly pass through the through hole 212.

[0110] Optionally, see Figure 16 In some embodiments, after a plurality of through-groove-shaped groove structures 34 are provided at the end of the shaft body 3, a plurality of petal structures 36 are correspondingly formed at the end of the shaft body 3. Further, a third guide avoidance slope 361 is provided on the side of the petal structure 36 so that the anti-rotation member 4 can quickly engage with the groove structure 34.

[0111] Of course, see Figure 17 In some embodiments, the end face of the shaft 3 may not be provided with the second guide avoidance slope 35 in order to reduce processing costs.

[0112] Understandably, the structure of the end of the shaft 3 is set according to actual needs. The following lists several structures of the shaft 3 with the wheel pin 11 set on the wheel body 1.

[0113] For example, see Figure 15 The end of the shaft 3 is provided with a hole structure 33 that mates with the wheel pin 11, a locking groove 31 extending circumferentially along the shaft 3, a plurality of groove structures 34 and forming a plurality of petal structures 36, and a second guide avoidance slope 35 is provided at the front end of each petal structure 36.

[0114] For example, see Figure 16 The end of the shaft 3 is provided with a hole structure 33 that mates with the wheel pin 11, and a locking groove 31 extending circumferentially along the shaft 3. Several groove structures 34 are provided and several petal structures 36 are formed. A second guide avoidance slope 35 is provided at the front end of each petal structure 36, and a third guide avoidance slope 361 is provided on both sides of each petal structure 36.

[0115] For example, see Figure 17 The end of the shaft 3 is provided with a hole structure 33 that mates with the wheel pin 11, and a locking groove 31 extending circumferentially along the shaft 3. It is provided with two groove structures 34 and forms two petal structures 36. The petal structures 36 are not provided with a second guide avoidance slope 35 and a third guide avoidance slope 361.

[0116] For example, see Figure 18 The end of the shaft 3 is provided with a hole structure 33 that mates with the wheel pin 11, and a locking groove 31 extending circumferentially along the shaft 3. Several groove structures 34 are provided and several petal structures 36 are formed. A third guide avoidance slope 361 is provided on both sides of each petal structure 36. No second guide avoidance slope 35 is provided on the petal structure 36.

[0117] For example, see Figure 19 , Figure 19 and Figure 17 The difference is that, Figure 19 There are four midslot structures 34 and four valve structures 36. Figure 19 In the middle, the end of the shaft body 3 is provided with a hole structure 33 that mates with the wheel pin 11, a locking groove 31 extending circumferentially along the shaft body 3 is provided, four groove structures 34 are provided and four petal structures 36 are formed, and the petal structures 36 are not provided with a second guide avoidance slope 35 and a third guide avoidance slope 361.

[0118] For example, see Figure 20 The shaft body 3 has a hole structure 33, a locking groove 31 is provided on the outer periphery of the shaft body 3 along the circumferential direction, and several groove structures 34 are provided on the outer surface of the shaft body 3 along the axial direction. The groove structures 34 are non-through groove structures. The shaft body 3 does not have a second guide avoidance slope 35 and a third guide avoidance slope 361.

[0119] The following is for Figure 14 The mounting holes 12 are provided on the middle wheel body 1, and the structure of several shaft bodies 3 is listed.

[0120] For example, see Figure 21The shaft body 3 does not have a hole structure 33. A locking groove 31 is provided along the circumferential direction of the shaft body 3 on its outer periphery. Several groove structures 34 are provided along the axial direction of the shaft body 3 on its outer surface. The groove structures 34 are non-through groove structures. The shaft body 3 does not have a second guide avoidance slope 35 or a third guide avoidance slope 361. Correspondingly... Figure 21 The anti-rotation component 4 is integrally formed and installed on the inner wall of the mounting hole 12 in the shaft 3.

[0121] For example, see Figure 22 The shaft body 3 does not have a hole structure 33, but a locking groove 31 is provided on the outer periphery of the shaft body 3 along the circumferential direction; a flange 32 is fixedly installed on the shaft body 3, and the flange 32 is provided with several anti-rotation holes 321. See also... Figure 14 On the wheel body 1, a plurality of anti-rotation components 4 are arranged circumferentially along the mounting hole 12, and the anti-rotation components 4 are arranged one-to-one with the anti-rotation holes 321. After the shaft body 3 is installed into the mounting hole 12, the anti-rotation component 4 passes through its corresponding anti-rotation hole 321.

[0122] Optionally, the wheel assembly also includes a drive element (not shown in the figure), which is driven to be connected to the shaft 3, and the shaft 3 can drive the wheel 1 to rotate synchronously.

[0123] Alternatively, the driving component may be a drive motor.

[0124] In this embodiment, the locking component 2 is movably mounted on the wheel body 1, and when the shaft body 3 is locked together with the locking component 2, the shaft body 3 can rotate synchronously with the locking component 2, and there will be no friction between the two due to relative rotation, thus avoiding wear caused by friction.

[0125] If the locking component 2 is installed on the frame of the stroller, the locking component 2 cannot rotate when the axle 3 rotates. At this time, there is relative movement between the axle 3 and the locking component 2, and there is friction between the two, which will cause wear on the axle 3 and the locking component 2.

[0126] Example 2

[0127] This embodiment provides a children's product.

[0128] The children's product includes a frame and a wheel assembly disposed on the frame, the wheel assembly being the wheel assembly of Embodiment 1; the axle 3 of the wheel assembly is disposed on the frame.

[0129] When the locking groove 31 and the locking piece 21 are in the locked position, the axle 3 is installed on the wheel 1, and the stroller can walk normally through the wheel 1. When the wheel 1 needs to be removed, control the locking piece 21 to move relative to the wheel 1, release the lock between the locking groove 31 and the locking piece 21, that is, control the locking piece 21 to move relative to the wheel 1, so that the locking groove 31 and the locking piece 21 are in the unlocked position, and then the wheel 1 can be removed from the axle 3.

[0130] When it is necessary to reinstall wheel 1 onto shaft 3, simply install wheel 1 onto shaft 3 and ensure that locking groove 31 and locking element 21 are in the locked position.

[0131] Furthermore, in this embodiment, the wheel body 1 of the wheel assembly is rotatably mounted on the vehicle frame.

[0132] Alternatively, the stroller can be a baby stroller or a child-assisted vehicle.

[0133] Of course, in other embodiments, the children's product can also be a crib.

[0134] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wheel assembly, characterized in that, include: Wheel body; The shaft is detachably connected and fixed to the wheel body, and a locking groove extending along the circumferential direction of the shaft is provided on the outer wall of the shaft. A locking assembly includes a locking member movably disposed on the wheel body, the locking member being movable in a locked position and an unlocked position, wherein, in the locked position, the locking member is positioned into the locking groove to prevent the wheel body from disengaging from the axle in the axial direction of the axle body; When in the unlocked position, the locking element disengages from the locking slot.

2. The wheel assembly according to claim 1, characterized in that, The wheel body is provided with a mounting hole adapted to the shaft body and a sliding hole communicating with the mounting hole. The shaft body is positioned to the mounting hole, and the locking member is slidably disposed on the wheel body along the sliding hole. After the shaft is positioned, the sliding hole and the locking groove are positioned opposite each other.

3. The wheel assembly according to claim 2, characterized in that, The locking assembly further includes a reset member disposed between the wheel and the locking member; Under the action of external force, the locking member moves toward the locking position and causes the reset member to accumulate elastic potential energy; After the external force is removed, the reset member drives the locking member to reset and move toward the locked position; The reset component includes a compression spring disposed between the wheel and the locking component, with both ends of the compression spring abutting against the locking component and the wheel, respectively.

4. The wheel assembly according to claim 2, characterized in that, The locking member is provided with a limiting groove, and the wheel body is provided with a limiting member that movably cooperates with the limiting groove. The limiting member can limit the movement stroke of the locking member.

5. The wheel assembly according to claim 2, characterized in that, The locking component is provided with a through hole that mates with the shaft. The through hole can move with the locking component. In the locked position, the axis of the through hole is misaligned with the axis of the shaft. In the unlocked position, the shaft can disengage from the through hole. On the locking assembly, a first guide avoidance slope is provided on the inner circumferential surface of the end of the through hole facing the shaft.

6. The wheel assembly according to any one of claims 1-5, characterized in that, The wheel assembly further includes an anti-rotation mechanism that restricts the wheel body from rotating relative to the shaft body in the circumferential direction of the shaft body; the anti-rotation mechanism includes an anti-rotation component fixed on the wheel body, and the shaft body is provided with a groove structure that engages with the anti-rotation component.

7. The wheel assembly according to claim 6, characterized in that, The wheel body is provided with a mounting hole that matches the shaft body. The anti-rotation component is provided on the inner wall of the mounting hole and protrudes towards the center of the mounting hole. The groove structure is provided on the outer wall of the shaft body; or, the shaft body is tubular and the groove structure penetrates the shaft body. Alternatively, the anti-rotation component includes several positioning protrusions disposed on the side of the wheel body facing the shaft body, and an annular support plate is disposed on the outer wall of the shaft body, with the groove structure disposed on the annular support plate.

8. The wheel assembly according to claim 6, characterized in that, The wheel assembly also includes a drive component, which is driven to the shaft, and the shaft can drive the wheel to rotate synchronously.

9. The wheel assembly according to any one of claims 1-5, characterized in that, The shaft is tubular, and the wheel is provided with a wheel pin that is inserted into the shaft.

10. Children's products, characterized in that, The vehicle includes a frame and a wheel assembly disposed on the frame, the wheel assembly being the wheel assembly as described in any one of claims 1-9; the axle of the wheel assembly is disposed on the frame.

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