A stroller wheel

Abstract

The utility model discloses a baby carriage wheel, it includes inner hub, outer hub and a plurality of hub support arms, a plurality of hub support arms are respectively detachable connection between the inner hub and the outer hub, the outer side detachable sleeve joint of the outer hub has the tire part, the outer hub includes hub ring spare, first hub side ring and second hub side ring, detachable opposite connection between the first hub side ring and the second hub side ring is at both sides of the hub ring spare, and the tire part is fixed simultaneously relative compression tight. The utility model through detachable clamping and screw connection between inner hub, outer hub and hub support arm, realize structure modularization, and the convenient assembly and disassembly, and the maintenance, replacement and cleaning are convenient, and the tire part adopts the multilayer buffer design of outer tire part, shock attenuation part and positioning interface part, and the shock attenuation groove part in the outer tire part and the shock attenuation slotting of shock attenuation part cooperate and absorb ground impact force, and the vibration feeling in the driving of baby carriage is reduced significantly, and the riding comfort is improved.

Description

Technical Field

[0001] This utility model belongs to the field of children's vehicle wheel technology, specifically relating to a children's vehicle wheel with detachable components. Background Technology

[0002] As an essential tool for children's daily travel, the safety, comfort, and durability of strollers directly affect children's user experience. However, existing stroller wheels still have some technical problems and shortcomings in practical use. Traditional stroller wheels usually adopt a one-piece structure, with the rim and tire molded as a single piece or fixedly installed, lacking modular design.

[0003] Disassembly and maintenance are inconvenient. Traditional wheel structures are highly integrated, with the wheel hub, tire, and support arm fixed and non-removable. When the tire is worn or damaged, the entire wheel component needs to be replaced, increasing the difficulty of operation.

[0004] Limited shock absorption: Most existing children's stroller wheels have a single-layer tire structure and lack multi-layer buffer or shock absorption design. They cannot effectively absorb the impact of the road surface, resulting in large wheel vibrations when riding on uneven or bumpy roads, poor riding comfort, and possible discomfort to children.

[0005] Poor compatibility and modularity: Traditional wheel structures are fixed, and it is difficult to flexibly combine wheel hubs, support arms and tires. They cannot be quickly replaced or adapted according to different vehicle models or usage needs, which reduces the versatility of wheels.

[0006] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0007] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a children's stroller wheel to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a children's vehicle wheel, comprising an inner hub, an outer hub, and several hub support arms, wherein the hub support arms are detachably connected between the inner hub and the outer hub, and a tire component is detachably fitted onto the outer side of the outer hub. The outer hub includes a hub ring, a first hub side ring, and a second hub side ring, wherein the first hub side ring and the second hub side ring are detachably connected opposite to each other on both sides of the hub ring, and simultaneously press the tire component together for fixation.

[0009] Furthermore, one side of the wheel hub ring is provided with a first side ring recess, and the other side of the wheel hub ring is provided with a second side ring recess. The first wheel hub side ring is embedded in the first side ring recess, and the second wheel hub side ring is embedded in the second side ring recess. The side of the first side ring recess is evenly provided with a plurality of first positioning through holes, and the lower side of the first wheel hub side ring is evenly provided with a plurality of first positioning through blocks. The plurality of first positioning through blocks are connected one-to-one in the plurality of first positioning through holes. The side of the second side ring recess is evenly provided with a plurality of second positioning through holes, and the lower side of the second wheel hub side ring is evenly provided with a plurality of second positioning through blocks. The plurality of second positioning through blocks are connected one-to-one in the plurality of second positioning through holes. The plurality of first positioning through blocks and the plurality of second positioning through blocks are fixedly connected by connecting components.

[0010] Furthermore, the connecting component includes a female threaded connector and a female threaded connector. The female threaded connector is connected in the first positioning block, and the female threaded connector is connected in the second positioning block. At the same time, the female threaded connector and the female threaded connector are connected and fixed by a threaded engagement.

[0011] Furthermore, the tire component includes an outer tire portion, a shock-absorbing portion, and a positioning joint portion. The shock-absorbing portion is disposed on the inner side of the outer tire portion, and the positioning joint portion is disposed on the inner side of the shock-absorbing portion. The inner surface of the positioning joint portion is uniformly recessed with a plurality of positioning grooves. The plurality of positioning grooves are spaced apart along the circumference of the tire. Each positioning groove is used to engage a plurality of first positioning blocks and a plurality of second positioning blocks to achieve stable positioning of the tire component and the wheel hub ring.

[0012] Furthermore, the shock absorber is disposed between the first wheel hub side ring and the second wheel hub side ring, and the side of the shock absorber is evenly provided with several shock-absorbing grooves to absorb and mitigate the impact and vibration generated by the tire components during driving.

[0013] Furthermore, the outer surface of the tire is uniformly provided with several anti-slip patterns.

[0014] Furthermore, the interior of the outer tire section is provided with an annular damping groove.

[0015] Furthermore, the inner side of the wheel hub ring is evenly provided with a plurality of first support arm slots, and the outer side of the inner wheel hub is evenly provided with a plurality of second support arm slots. One end of the wheel hub support arm is provided with a first support arm locking part, and the other end of the wheel hub support arm is provided with a second support arm locking part. The first support arm locking part is engaged in the first support arm slot, and the second support arm locking part is engaged in the second support arm slot.

[0016] Furthermore, the left and right sides of the first support arm locking position are respectively provided with first positioning slots, and the left and right sides of the first support arm locking part are respectively provided with first positioning blocks. The two first positioning blocks are respectively engaged in the two first positioning slots for positioning and connection. The left and right sides of the second support arm locking position are respectively provided with second positioning slots, and the left and right sides of the second support arm locking part are respectively provided with second positioning blocks. The two second positioning blocks are respectively engaged in the two second positioning slots for positioning and connection.

[0017] Furthermore, the upper end of the first support arm slot is recessed with a first fixing recess, in which a first fixing cover strip is embedded. The first fixing cover strip is fixedly installed in the first fixing recess by screws. The upper end of the second support arm slot is recessed with a second fixing recess, in which a second fixing cover strip is embedded. The second fixing cover strip is fixedly installed in the second fixing recess by screws. The screws lock the wheel hub support arm in an upward limiting and pressing manner.

[0018] This utility model has the following advantages: It achieves modular structure through detachable snap-fit ​​and threaded connection between the inner hub, outer hub, and hub support arm, facilitating easy assembly, disassembly, maintenance, replacement, and cleaning. The hub support arm forms a double-layer limiting structure through a first support arm locking position, a second support arm locking position, and corresponding first positioning blocks, second positioning blocks, first fixing cover strips, and second fixing cover strips, effectively fixing the hub support arm in both radial and axial directions, preventing loosening or displacement during use. The tire component adopts a multi-layer buffer design consisting of an outer tire section, a shock-absorbing section, and a positioning joint. The damping grooves inside the outer tire section and the shock-absorbing grooves in the shock-absorbing section work together to absorb ground impact, significantly reducing vibration during the stroller's ride and improving riding comfort. Simultaneously, the anti-slip treads on the outer tire surface increase the friction between the tire and the ground and form drainage channels, maintaining good grip on wet and slippery surfaces and preventing slippage. The wheel hub support arm precisely engages with the first positioning block and the first positioning slot, and the second positioning block and the second positioning slot, ensuring concentric installation of the wheel hub assembly. This guarantees even force distribution and smooth operation during wheel rotation, reducing swaying. This invention boasts strong structural compatibility and significantly improves the overall safety, stability, comfort, and practicality of children's vehicle wheels. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0021] Figure 3 This is an exploded structural diagram of the outer wheel hub, tire component, and connecting component of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the tire component of this utility model.

[0023] Figure 5 This is an exploded structural diagram of the inner hub, outer hub, and hub support arm of this utility model.

[0024] Figure 6 This is a schematic diagram of the tire component structure of this utility model.

[0025] Figure 7 This is a schematic diagram of the outer hub structure of this utility model.

[0026] Reference numerals: Inner hub 10; Outer hub 20; Hub support arm 30; Tire component 40; Hub ring 21; First hub side ring 22; Second hub side ring 23; First side ring recess 211; Second side ring recess 212; First positioning through-hole 211a; First positioning through-block 221; Second positioning through-hole 212a; Second positioning through-block 231; Connecting component 50; Female threaded connector 51; Female threaded connector 52; Outer tire part 41; Shock absorber part 42; Positioning Connecting part 43; positioning groove 431; shock-absorbing groove 421; anti-slip texture 411; damping groove 412; first support arm locking position 213; second support arm locking position 11; first support arm locking part 31; second support arm locking part 32; first positioning groove 213a; first positioning block 311; second positioning groove 111; second positioning block 321; first fixing recess 214; first fixing cover strip 215; second fixing recess 112; second fixing cover strip 113. Detailed Implementation

[0027] like Figures 1 to 7As shown, a children's vehicle wheel includes an inner hub 10, an outer hub 20, and several hub support arms 30. The hub support arms 30 are detachably connected between the inner hub 10 and the outer hub 20. A tire component 40 is detachably fitted onto the outer side of the outer hub 20. The outer hub 20 includes a hub ring 21, a first hub side ring 22, and a second hub side ring 23. The first hub side ring 22 and the second hub side ring 23 are detachably connected opposite each other to the two sides of the hub ring 21. At the same time, the first hub side ring 22 and the second hub side ring 23 press against each other to fix the tire component 40. In use, when the tire component 40 is worn or damaged, the connecting piece between the first hub side ring 22 and the second hub side ring 23 can be loosened to separate them, thereby removing the tire component 40 for replacement. Several hub support arms 30 have a locking end and a plug-in end at both ends. The locking end is detachably locked into the outer edge groove of the inner hub 10, and the plug-in end is plugged into and fixed in the inner wall limiting groove of the outer hub 20, achieving a stable and detachable connection. The hub support arms 30 are radially distributed to support the outer hub 20, forming a rigid support structure between the inner hub 10 and the outer hub 20, ensuring the balance and durability of the hub during rolling.

[0028] In practical implementation, the wheel hub ring 21 has a first side ring recess 211 on one side and a second side ring recess 212 on the other side. The first wheel hub side ring 22 is fitted into the first side ring recess 211, and the second wheel hub side ring 23 is fitted into the second side ring recess 212. The side of the first side ring recess 211 is evenly provided with a plurality of first positioning through holes 211a, and the lower side of the first wheel hub side ring 22 is evenly provided with a plurality of first positioning through blocks 221. The plurality of first positioning through blocks 221 are connected one-to-one with the plurality of first positioning through holes 211a. In the positioning through-hole 211a, a plurality of second positioning through-holes 212a are evenly provided on the side of the second side ring recess 212, and a plurality of second positioning through-holes 231 are evenly protruding on the lower side of the second wheel hub side ring 23. The plurality of second positioning through-holes 231 are connected one-to-one in the plurality of second positioning through-holes 212a. A plurality of first positioning through-holes 221 and a plurality of second positioning through-holes 231 are arranged opposite each other. The middle portions of the first positioning through-holes 221 and the second positioning through-holes 231 are fixedly connected by a connecting member 50, forming a stable side ring clamping structure. In use, when it is necessary to install or replace the tire component 40, the connecting member 50 can be disassembled first to separate the first wheel hub side ring 22 and the second wheel hub side ring 23, thereby releasing the tire component 40 for easy disassembly, replacement, or maintenance. During installation, the tire component 40 is fitted onto the outer edge of the hub ring 21, the first hub side ring 22 and the second hub side ring 23 are re-fitted, and the tire component 40 is fixed by the connecting component 50 to achieve reliable compression and positioning of the tire component 40, so that it does not slip or loosen during driving.

[0029] In practical implementation, the connecting component 50 includes a female threaded connector 51 and a female threaded connector 52. The female threaded connector 51 is connected to the first positioning block 221, and the female threaded connector 52 is connected to the second positioning block 231. The female threaded connector 52 and the female threaded connector 51 are threadedly engaged and fixed. During use, when the tire component 40 needs to be disassembled or replaced, the female threaded connector 52 can be unscrewed, separating the first positioning block 221 and the second positioning block 231, thereby releasing the first hub side ring 22 and the second hub side ring 23, facilitating the disassembly of the tire component 40. During installation, after the tire component 40 is fitted onto the outer edge of the hub ring component 21, the first hub side ring 22 and the second hub side ring 23 are re-fitted, and then the female threaded connector 52 is screwed into the female threaded connector 51, achieving a stable clamping and positioning of the tire component 40, preventing it from loosening during driving.

[0030] In practical implementation, the tire component 40 includes an outer tire portion 41, a shock-absorbing portion 42, and a positioning joint portion 43. The shock-absorbing portion 42 is disposed inside the outer tire portion 41, and the positioning joint portion 43 is disposed inside the shock-absorbing portion 42. The inner surface of the positioning joint portion 43 is uniformly recessed with a plurality of positioning grooves 431, which are spaced apart along the tire circumference. Each positioning groove 431 has a square shape and is used to accommodate a connecting positioning structure. The positioning joint portion 43 is installed inside the hub ring component 21, and it is correspondingly engaged with a plurality of first positioning blocks 221 and a plurality of second positioning blocks 231 through its internal positioning grooves 431. During installation, the plurality of first positioning blocks 221 and the plurality of second positioning blocks 231 are respectively inserted one-to-one into the plurality of positioning grooves 431, achieving precise positioning and stable connection between the tire component 40 and the hub ring component 21. This positioning method not only prevents the tire component 40 from shifting or loosening during high-speed rotation, but also maintains connection stability when subjected to impact. The shock-absorbing part 42 is located between the first wheel hub side ring 22 and the second wheel hub side ring 23, arranged in a ring shape, and is made of highly elastic silicone or polyurethane material, possessing excellent elastic deformation performance. The side of the shock-absorbing part 42 is evenly provided with several shock-absorbing grooves 421, extending along the tire circumference. Each groove 421 is spaced apart from the others, and its depth and width are designed according to the wheel diameter and load-bearing capacity, allowing the shock-absorbing part 42 to form an elastic buffer space when deformed under pressure. In use, when the stroller travels on uneven roads or encounters bumps, the outer tire 41 first contacts the ground and transmits the impact force. This impact force is absorbed and dispersed by the elastic structure of the shock-absorbing part 42. The several shock-absorbing grooves 421 further weaken the vibration transmission through expansion and contraction deformation, making the tire deformation more gentle, thereby effectively reducing the vibration amplitude of the stroller. At the same time, the positioning joint 43 maintains a stable connection with the wheel hub ring 21 through the positioning and fitting structure, ensuring that the entire tire component 40 can maintain a fixed position under stress, without swaying or loosening, thereby improving the stability and safety of the stroller.

[0031] In practical implementation, the outer surface of the tire portion 41 is uniformly provided with a plurality of anti-slip treads 411, which are spaced apart along the circumference of the tire. This multi-directional tread distribution effectively increases the coefficient of friction between the tire and the ground during the stroller's movement, thereby improving anti-slip performance and ground grip, and preventing the stroller from slipping on wet or gravel roads. The interior of the tire portion 41 is provided with an annular cushioning groove 412. The function of the cushioning groove 412 is to generate controllable elastic deformation when the tire portion 41 is impacted by the ground, allowing the tire portion 41 to undergo slight radial expansion and contraction deformation, thus forming the first layer of cushioning. Through this structural design, the impact force from the ground is first absorbed by the tire portion 41, then buffered by the deformation generated by the cushioning groove 412, and finally transmitted to the shock-absorbing portion 42 for secondary energy absorption, achieving a multi-layered shock absorption effect.

[0032] In practical implementation, the inner side of the wheel hub ring 21 is uniformly provided with a plurality of first support arm slots 213. These first support arm slots 213 are spaced apart along the circumference of the wheel hub ring 21, forming a groove-like structure. The shape of each first support arm slot 213 matches the shape of the first support arm slot 31, enabling precise fitting and positioning, thus ensuring stable installation. The outer side of the inner wheel hub 10 is uniformly provided with a plurality of second support arm slots 11. The number and distribution of the second support arm slots 11 correspond one-to-one with the number of first support arm slots 213. The second support arm slots 11 also adopt a ring-shaped distribution structure, uniformly distributed on the outer circumference of the inner wheel hub 10. One end of the wheel hub support arm 30 is provided with a first support arm slot 31, used for insertion and engagement with the first support arm slot 213. The other end of the wheel hub support arm 30 is provided with a second support arm locking part 32, which also has a snap-fit ​​structure that matches the second support arm locking position 11 for embedding and fixing. During installation, the operator can first insert the first support arm locking parts 31 at one end of several wheel hub support arms 30 into the corresponding first support arm locking positions 213, and then press the second support arm locking parts 32 at the other end into the second support arm locking positions 11, so that the wheel hub support arm 30 is fixedly connected between the inner wheel hub 10 and the outer wheel hub 20 in the radial direction, thereby forming a stable support frame structure.

[0033] In practical implementation, the left and right sides of the first support arm locking position 213 are respectively provided with first positioning grooves 213a, and the left and right sides of the first support arm locking part 31 are respectively provided with first positioning blocks 311. Several first positioning blocks 311 and several first positioning grooves 213a are matched in shape and size, enabling a stable connection through locking during assembly. During installation, when the operator inserts the first support arm locking part 31 into the first support arm locking position 213, the two first positioning blocks 311 respectively embed into the corresponding two first positioning grooves 213a, forming a double-sided limiting structure. This effectively constrains the wheel hub support arm 30 in both the radial and axial directions, preventing the support arm from rotating or displacing under force. This mechanical locking method improves the overall connection strength and stability. The second support arm locking position 11 has two recessed second positioning slots 111 on its left and right sides, and the second support arm locking part 32 has two protruding second positioning blocks 321 on its left and right sides. The positions and shapes of the second positioning blocks 321 and the second positioning slots 111 are identical. During installation, the operator inserts the second support arm locking part 32 into the second support arm locking position 11, and the two second positioning blocks 321 are embedded one-to-one into the two second positioning slots 111, thus forming a reliable limiting position at the connection. During use, the first positioning blocks 311 and the second positioning blocks 321 achieve bidirectional limiting positioning in their corresponding slots, ensuring that each wheel hub support arm 30 remains in a fixed position and does not loosen due to wheel rotation or vibration. Simultaneously, this structure facilitates assembly and disassembly; only slight external force is required to engage or disengage, avoiding the use of additional tools and improving the maintenance convenience and modularity of the stroller wheels.

[0034] In practical implementation, the upper end of the first support arm locking position 213 is recessed with a first fixing recess 214, and a first fixing cover strip 215 is embedded in the first fixing recess 214. The shape of the first fixing cover strip 215 is consistent with the groove shape of the first fixing recess 214, and it fits tightly inside the first fixing recess 214. The first fixing cover strip 215 covers the top position of the first support arm locking part 31, and by forming a pressure cover structure, it limits and presses the support arm locking part 31 upward. The first fixing cover strip 215 is fixedly installed in the first fixing recess 214 by screws. Through the locking action of the screws, the first fixing cover strip 215 can be firmly pressed into the first fixing recess 214, thereby further limiting and fixing the first support arm locking part 31 located below. This structure can effectively prevent the first support arm locking part 31 from loosening or falling out under long-term use or vibration, and improve the overall structural stability and service life of the stroller wheel.

[0035] In specific implementation, the upper end of the second support arm locking position 11 is provided with a second fixing recess 112, and a second fixing cover strip 113 is embedded in the second fixing recess 112. The second fixing cover strip 113 is fixedly installed in the second fixing recess 112 by screws. Through the locking action of the screws, the second fixing cover strip 113 can be firmly pressed into the second fixing recess 112, thereby playing a further limiting and fixing role for the second support arm locking part 32 located below.

[0036] In summary, this utility model achieves modular structure through the detachable snap-fit ​​and threaded connection between the inner hub 10, the outer hub 20 and the hub support arm 30, making it easy to assemble and disassemble, maintain, replace and clean. The hub support arm 30 forms a double-layer limiting structure through the first support arm locking position 213, the second support arm locking position 11 and the corresponding first positioning locking block 311, the second positioning locking block 321 and the first fixing cover strip 215 and the second fixing cover strip 113, so that the hub support arm 30 is effectively fixed in both the radial and axial directions, preventing loosening or displacement during use. The tire component 40 employs a multi-layered buffer design consisting of an outer tire section 41, a shock-absorbing section 42, and a positioning joint 43. The damping groove 412 inside the outer tire section 41 and the shock-absorbing groove 421 of the shock-absorbing section 42 work together to absorb ground impact, significantly reducing vibration during the stroller's movement and improving riding comfort. Simultaneously, the anti-slip treads 411 on the surface of the outer tire section 41 increase the friction between the tire and the ground and form drainage channels, maintaining good grip on wet and slippery surfaces and preventing slippage. The wheel hub support arm 30 precisely engages with the first positioning block 311 and the first positioning groove 213a, and the second positioning block 321 and the second positioning groove 111, ensuring concentric installation of the wheel hub assembly. This guarantees even force distribution and smooth operation during wheel rotation, reducing swaying. This invention exhibits strong structural compatibility and significantly improves the overall safety, stability, comfort, and practicality of the stroller wheel.

Claims

1. A children's stroller wheel, characterized in that, It includes an inner hub (10), an outer hub (20), and several hub support arms (30). Several hub support arms (30) are detachably connected between the inner hub (10) and the outer hub (20). A tire component (40) is detachably fitted on the outer side of the outer hub (20). The outer hub (20) includes a hub ring (21), a first hub side ring (22), and a second hub side ring (23). The first hub side ring (22) and the second hub side ring (23) are detachably connected to each other on both sides of the hub ring (21) and simultaneously press the tire component (40) together for fixation.

2. The stroller wheel according to claim 1, characterized in that, The hub ring component (21) has a first side ring recess (211) on one side and a second side ring recess (212) on the other side. The first hub side ring (22) is fitted into the first side ring recess (211), and the second hub side ring (23) is fitted into the second side ring recess (212). The side of the first side ring recess (211) is evenly provided with a plurality of first positioning through holes (211a), and the lower side of the first hub side ring (22) is evenly provided with a plurality of first positioning through blocks (221). The positioning blocks (221) are connected one-to-one with the first positioning holes (211a). The second side ring recess (212) is evenly provided with a number of second positioning holes (212a). The lower side of the second wheel hub side ring (23) is evenly provided with a number of second positioning blocks (231). The number of second positioning blocks (231) are connected one-to-one with the number of second positioning holes (212a). The number of first positioning blocks (221) and the number of second positioning blocks (231) are fixedly connected by connecting components (50).

3. The stroller wheel according to claim 2, characterized in that, The connecting component (50) includes a female threaded connector (51) and a female threaded connector (52). The female threaded connector (51) is connected in the first positioning block (221), and the female threaded connector (52) is connected in the second positioning block (231). At the same time, the female threaded connector (52) and the female threaded connector (51) are connected and fixed by a threaded engagement.

4. The stroller wheel according to claim 1, characterized in that, The tire component (40) includes an outer tire part (41), a shock absorber part (42), and a positioning joint part (43). The shock absorber part (42) is disposed inside the outer tire part (41), and the positioning joint part (43) is disposed inside the shock absorber part (42). The inner side of the positioning joint part (43) is uniformly recessed with a plurality of positioning grooves (431). The plurality of positioning grooves (431) are distributed at intervals along the circumference of the tire. Each positioning groove (431) is used to fit a plurality of first positioning blocks (221) and a plurality of second positioning blocks (231) to achieve stable positioning of the tire component (40) and the hub ring (21).

5. The stroller wheel according to claim 4, characterized in that, The shock absorber (42) is located between the first wheel hub side ring (22) and the second wheel hub side ring (23). The side of the shock absorber (42) is evenly provided with several shock absorber slots (421) to absorb and mitigate the impact and vibration generated by the tire component (40) during driving.

6. The stroller wheel according to claim 5, characterized in that, The outer surface of the outer tire part (41) is uniformly provided with several anti-slip patterns (411).

7. The stroller wheel according to claim 6, characterized in that, The inner part of the outer tire (41) is provided with an annular slow-down groove (412).

8. The stroller wheel according to claim 1, characterized in that, The inner side of the hub ring (21) is evenly provided with a number of first support arm slots (213), and the outer side of the inner hub (10) is evenly provided with a number of second support arm slots (11). One end of the hub support arm (30) is provided with a first support arm slot (31), and the other end of the hub support arm (30) is provided with a second support arm slot (32). The first support arm slot (31) is engaged in the first support arm slot (213), and the second support arm slot (32) is engaged in the second support arm slot (11).

9. The stroller wheel according to claim 8, characterized in that, The left and right sides of the first support arm slot (213) are respectively recessed with first positioning slots (213a), and the left and right sides of the first support arm slot (31) are respectively protruding with first positioning blocks (311). The two first positioning blocks (311) are respectively embedded in the two first positioning slots (213a) for positioning and connection. The left and right sides of the second support arm slot (11) are respectively recessed with second positioning slots (111), and the left and right sides of the second support arm slot (32) are respectively protruding with second positioning blocks (321). The two second positioning blocks (321) are respectively embedded in the two second positioning slots (111) for positioning and connection.

10. The stroller wheel according to claim 9, characterized in that, The upper end of the first support arm slot (213) is provided with a first fixing recess (214), and a first fixing cover strip (215) is embedded in the first fixing recess (214). The first fixing cover strip (215) is fixedly installed in the first fixing recess (214) by screws. The upper end of the second support arm slot (11) is provided with a second fixing recess (112), and a second fixing cover strip (113) is embedded in the second fixing recess (112). The second fixing cover strip (113) is fixedly installed in the second fixing recess (112) by screws. The wheel hub support arm (30) is limited and pressed upward by the screw locking action.

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