Anti-shake device for wheels of child carrier

Abstract

The invention discloses an anti-shaking device for wheels of a child carrier, which comprises a connecting seat connected with a frame of the child carrier; the wheel seats are connected with the wheels of the child carrier; the rotating shaft piece is fixedly connected with one of the connecting seat and the wheel seat and is rotationally connected with the other one of the connecting seat and the wheel seat; the limiting mechanism abuts against the rotating shaft piece in the axial direction of the rotating shaft piece so as to limit vibration of the rotating shaft piece in the axial direction of the rotating shaft piece.

Description

[0001] This application is a divisional application of the invention patent application of Mingmen Switzerland Co., Ltd. (filing date is December 14, 2020), application number 202080096673.5, and invention name "Anti-sway device for wheels of child carriers"). Technical Field

[0002] The invention relates to an anti-swaying device for wheels of a child carrier. Background Art

[0003] Child carriers (such as strollers) can reduce the burden on caregivers when carrying children outside, and therefore have been widely used. The movement of child carriers is mainly achieved by wheels. However, current child carriers often shake and bump when traveling on uneven roads due to the shaking of the wheels, thereby affecting the safety and comfort of riding. Therefore, there is a need to provide a solution to solve the above problem. Summary of the invention

[0004] It is worth noting that one of the objectives of the present invention is to provide an anti-sway device for wheels of a child carrier.

[0005] It can be seen more clearly from the following specific embodiments that the anti-sway device claimed for protection in the present invention is a wheel for a child carrier, and the anti-sway device includes a connecting seat, a wheel seat, a rotating shaft and a limiting mechanism, the connecting seat is connected to the frame of the child carrier, the wheel seat is connected to the wheel of the child carrier, the rotating shaft is fixedly connected to one of the connecting seat and the wheel seat and rotationally connected to the other of the connecting seat and the wheel seat, and the limiting mechanism is used to limit the shaking of the wheel seat relative to the connecting seat.

[0006] According to one embodiment of the present invention, the limiting mechanism includes a damping member, the damping member is fixedly connected to the other of the connecting seat and the wheel seat, a through hole is formed on the damping member, and the rotating shaft member is passed through the through hole and tightly fitted with the damping member.

[0007] According to one embodiment of the present invention, a groove is formed on the rotating shaft component, and the damping component includes a protrusion, and the protrusion is tightly matched with the groove.

[0008] According to one embodiment of the present invention, the groove is a trapezoidal groove, and the protrusion is a trapezoidal protrusion.

[0009] According to one embodiment of the present invention, the limiting mechanism further includes at least one fixing member, and the at least one fixing member is used to fix the damping member to the other of the connecting seat and the wheel seat.

[0010] According to one embodiment of the present invention, the limiting mechanism further includes a bearing, the bearing is arranged on the other one of the connecting seat and the wheel seat, and the rotating shaft is rotatably connected to the other one of the connecting seat and the wheel seat through the bearing.

[0011] According to one embodiment of the present invention, the limiting mechanism includes a pushing member, and the pushing member pushes the rotating shaft member along the axial direction of the rotating shaft member.

[0012] According to one embodiment of the present invention, the pushing member is movably disposed on the other of the connecting seat and the wheel seat, the limiting mechanism further includes an elastic member, and the elastic member is connected to the pushing member to drive the pushing member to push the rotating shaft member.

[0013] According to one embodiment of the present invention, the limiting mechanism further includes a clamping member, a long hole is formed on the clamping member, the rotating shaft member is inserted into the long hole, and the clamping member can move relative to the rotating shaft member along the lateral direction of the rotating shaft member through the cooperation between the long hole and the rotating shaft member, thereby pushing the rotating shaft member along the lateral direction of the rotating shaft member.

[0014] According to one embodiment of the present invention, a groove is formed on the rotating shaft, the engaging member includes a protrusion, and when the engaging member pushes the rotating shaft along the lateral direction of the rotating shaft, the protrusion engages with the groove along the lateral direction of the rotating shaft.

[0015] According to one embodiment of the present invention, the engaging member is movably disposed on the other of the connecting seat and the wheel seat, the limiting mechanism further includes a reset member, and the reset member is disposed between the other of the connecting seat and the wheel seat and the engaging member to drive the engaging member to push the rotating shaft member along the lateral direction of the rotating shaft member.

[0016] According to one embodiment of the present invention, the limiting mechanism further includes at least one positioning column, the at least one positioning column is fixedly disposed on the other one of the connecting seat and the wheel seat and / or the pushing member, and the elastic member is sleeved on the at least one positioning column.

[0017] According to one embodiment of the present invention, the pushing member includes two positioning protrusions fixedly disposed on one of the connecting seat and the wheel seat, and the end of the rotating shaft member is clamped between the two positioning protrusions.

[0018] According to one embodiment of the present invention, the limiting mechanism further includes a plurality of rotating members, and the plurality of rotating members are rotatably matched with each other.

[0019] According to one embodiment of the present invention, the multiple rotating parts include a first gear and a second gear, the first gear is fixedly disposed on the other one of the connecting seat and the wheel seat and is sleeved on the rotating shaft, and the second gear is rotatably disposed on one of the connecting seat and the wheel seat.

[0020] According to one embodiment of the present invention, the limiting mechanism further includes a fixing portion, and the fixing portion is fixedly disposed on the other of the connecting seat and the wheel seat and sleeved on the rotating shaft.

[0021] According to one embodiment of the present invention, the first gear and the fixing portion are formed integrally.

[0022] According to one embodiment of the present invention, the root circle diameter of the first gear is greater than the root circle diameter of the second gear.

[0023] According to one embodiment of the present invention, the limiting mechanism includes a damping block, and the damping block is arranged on one side of the rotating shaft and can move relative to the rotating shaft along the lateral direction of the rotating shaft, thereby pushing the rotating shaft along the lateral direction of the rotating shaft.

[0024] According to one embodiment of the present invention, a groove is formed on the rotating shaft, the damping block includes a protrusion, and when the damping block pushes the rotating shaft along the lateral direction of the rotating shaft, the protrusion engages with the groove along the lateral direction of the rotating shaft.

[0025] According to one embodiment of the present invention, the damping block is movably disposed at the other of the connecting seat and the wheel seat, the limiting mechanism further includes a reset member, and the reset member is disposed between the other of the connecting seat and the wheel seat and the damping block to drive the damping block to push the rotating shaft member along the lateral direction of the rotating shaft member.

[0026] According to one embodiment of the present invention, the limiting mechanism further includes at least one positioning column, the at least one positioning column is fixedly disposed on the other one of the connecting seat and the wheel seat and / or the damping block, and the reset member is sleeved on the at least one positioning column.

[0027] According to one embodiment of the present invention, the limiting mechanism further includes a mounting member, the mounting member is fixedly disposed on the other of the connecting seat and the wheel seat, and the rotating shaft member is rotatably connected to the other of the connecting seat and the wheel seat through the mounting member.

[0028] According to one embodiment of the present invention, the anti-sway device further includes a buffer component, and the buffer component is arranged parallel to the rotating shaft component and installed between the wheel and the wheel seat.

[0029] According to one embodiment of the present invention, the limiting mechanism includes a rotating sleeve and a damping plate, the rotating sleeve is fixedly disposed on the other of the connecting seat and the wheel seat, the rotating shaft passes through the rotating sleeve and can rotate relative to the rotating sleeve, and the damping plate is disposed on the rotating shaft and pushes the rotating sleeve along the axial direction of the rotating shaft.

[0030] According to one embodiment of the present invention, the limiting mechanism includes a damping plate, and the damping plate is disposed on the rotating shaft and pushes the rotating sleeve along the axial direction of the rotating shaft.

[0031] According to one embodiment of the present invention, the limiting mechanism further includes a rotating sleeve, the rotating sleeve is fixedly disposed on the other of the connecting seat and the wheel seat, the rotating shaft includes a limiting portion and an extending portion, the rotating sleeve includes a through hole for inserting the extending portion, the limiting portion is used to limit the distance that the extending portion is inserted into the through hole, the damping plate is located between the limiting portion and the rotating sleeve, and the extending portion passes through the through hole to be connected to the connecting seat.

[0032] According to one embodiment of the present invention, the limiting mechanism includes a sleeve component, and the sleeve component is fixedly disposed on the other of the connecting seat and the wheel seat and sleeved on the rotating shaft component.

[0033] According to one embodiment of the present invention, at least one notch is formed on the wall surface of the sleeve component, and the inner diameter of the sleeve component is smaller than the outer diameter of the rotating shaft component.

[0034] According to one embodiment of the present invention, the limiting mechanism includes a sleeve and an elastic member, the sleeve is movably disposed on the other of the connecting seat and the wheel seat and is sleeved on the rotating shaft member, and the elastic member is disposed between the other of the connecting seat and the wheel seat and the sleeve to drive the sleeve to push the rotating shaft member along the lateral direction of the rotating shaft member.

[0035] According to one embodiment of the present invention, the limiting mechanism further includes a bearing, and the bearing is fixedly disposed on the other one of the connecting seat and the wheel seat.

[0036] According to one embodiment of the present invention, the limiting mechanism further includes an abutment member, and the abutment member is disposed between the connecting seat and the wheel seat.

[0037] According to one embodiment of the present invention, the limiting mechanism includes a fixing seat, which is fixedly connected to the connecting seat and one of the wheel seats and is sleeved on the rotating shaft. An accommodating hole is formed on the other of the connecting seat and the wheel seat, and the fixing seat is tightly fitted with the accommodating hole.

[0038] According to one embodiment of the present invention, the fixing seat includes a fixing body and at least one elastic abutting portion, and when the fixing seat is tightly matched with the receiving hole, the at least one elastic abutting portion abuts against the hole wall of the receiving hole and is elastically deformed.

[0039] In summary, the limiting mechanism of the anti-sway device of the present invention can limit the swaying of the wheel seat connected to the wheel relative to the connecting seat of the connecting frame. Therefore, the present invention can effectively prevent the child carrier from being bumped and shaken when traveling on uneven roads, thereby improving the riding safety and comfort of the child carrier.

[0040] Those skilled in the art can understand the above and other objects of the present invention without any ambiguity after reading the following detailed description of the preferred embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following drawings are provided to further illustrate the present invention by way of example, wherein

[0042] Figure 1 FIG. 1 is a schematic diagram of the appearance of a child carrier according to a first embodiment of the present invention.

[0043] Figure 2 FIG. 1 is a partial structural diagram of a child carrier according to a first embodiment of the present invention.

[0044] Figure 3 It is an exploded view of the components of the anti-sway device according to the first embodiment of the present invention.

[0045] Figure 4 It is a cross-sectional schematic diagram of the anti-sway device according to the first embodiment of the present invention.

[0046] Figure 5 FIG. 1 is a schematic diagram of a damping member according to a first embodiment of the present invention.

[0047] Figure 6 FIG. 1 is a schematic diagram of the appearance of a child carrier according to a second embodiment of the present invention.

[0048] Figure 7 FIG. 2 is a partial structural diagram of a child carrier according to a second embodiment of the present invention.

[0049] Figure 8 It is a cross-sectional schematic diagram of an anti-sway device according to a second embodiment of the present invention.

[0050] Fig. 9FIG. 4 is a partial structural diagram of a child carrier according to a third embodiment of the present invention.

[0051] Fig.10 FIG. 1 is a partial structural cross-sectional diagram of a child carrier according to a third embodiment of the present invention.

[0052] Figures 11 to 14 Schematic diagram of the structure of different parts of a child carrier according to a third embodiment of the present invention.

[0053] Fig.15 FIG. 2 is a schematic cross-sectional view of another part of the structure of the child carrier according to the third embodiment of the present invention.

[0054] Fig.16 FIG. 4 is a schematic diagram of a fixing portion according to a third embodiment of the present invention.

[0055] Fig.17 Schematic diagram of a wheel seat body according to a third embodiment of the present invention.

[0056] Fig.18 FIG. 4 is a partial structural diagram of a child carrier according to a fourth embodiment of the present invention.

[0057] Fig.19 It is a partial enlarged schematic diagram of the structure of a child carrier according to a fourth embodiment of the present invention.

[0058] Fig. 20 FIG. 4 is a schematic cross-sectional view of a portion of the structure of an anti-sway device according to a fourth embodiment of the present invention.

[0059] Fig.21 It is an exploded view of components of the anti-sway device according to the fourth embodiment of the present invention.

[0060] Fig. 22 FIG. 4 is a schematic diagram of a damping block according to a fourth embodiment of the present invention.

[0061] Fig.23 FIG. 5 is a partial structural diagram of a child carrier according to a fifth embodiment of the present invention.

[0062] Fig.24 For the fifth embodiment of the present invention Fig.23 An enlarged schematic diagram of the structure of part A of the child carrier is shown.

[0063] Fig.25 It is an exploded view of components of the anti-sway device according to the fifth embodiment of the present invention.

[0064] Fig.26 FIG. 5 is a partial structural cross-sectional diagram of a child carrier according to a fifth embodiment of the present invention.

[0065] Fig. 27 For the fifth embodiment of the present invention Fig.26 An enlarged schematic diagram of the structure of part B of the child carrier is shown.

[0066] Fig.28 FIG. 6 is a partial structural diagram of a child carrier according to a sixth embodiment of the present invention.

[0067] Fig.29 It is an enlarged schematic diagram of the structure of part C of the child carrier according to the sixth embodiment of the present invention.

[0068] Fig.30 Schematic diagram of a socket according to a sixth embodiment of the present invention.

[0069] Fig.31 FIG. 2 is a partial structural diagram of a child carrier according to a seventh embodiment of the present invention.

[0070] Fig.32 FIG. 1 is an enlarged schematic diagram of a partial structure of a child carrier according to a seventh embodiment of the present invention.

[0071] Fig.33 FIG. 2 is an enlarged schematic diagram of another structural part of the child carrier according to the seventh embodiment of the present invention.

[0072] Fig.34 FIG. 1 is an exploded view of some structural components of a child carrier according to a seventh embodiment of the present invention.

[0073] Fig.35 FIG. 1 is a partial structural cross-sectional diagram of a child carrier according to a seventh embodiment of the present invention.

[0074] Fig.36 FIG. 4 is a schematic diagram of the appearance of a child carrier according to an eighth embodiment of the present invention.

[0075] Fig.37 FIG. 2 is a partial structural diagram of a child carrier according to an eighth embodiment of the present invention.

[0076] Fig.38 FIG. 2 is an exploded view of some structural components of a child carrier according to an eighth embodiment of the present invention.

[0077] Fig.39 FIG. 2 is a schematic diagram of a partial internal structure of a child carrier according to an eighth embodiment of the present invention.

[0078] Fig.40 FIG. 2 is a schematic diagram of another part of the internal structure of the child carrier according to the eighth embodiment of the present invention. DETAILED DESCRIPTION

[0079] The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, the word "connected" herein includes any direct and indirect structural connection means. Therefore, if the text describes that a first device is connected to a second device, it means that the first device can be directly structurally connected to the second device, or indirectly structurally connected to the second device through other devices or connection means.

[0080] See also Figures 1 to 5 , Figure 1 FIG. 1 is a schematic diagram of the appearance of a child carrier 100A according to a first embodiment of the present invention. Figure 2 FIG. 1 is a partial structural diagram of a child carrier 100A according to a first embodiment of the present invention. Figure 3 FIG. 2 is an exploded view of components of the anti-sway device 200A according to the first embodiment of the present invention. Figure 4 FIG. 2 is a cross-sectional schematic diagram of an anti-sway device 200A according to a first embodiment of the present invention. Figure 5 FIG. 2 is a schematic diagram of a damping member 241A according to a first embodiment of the present invention. Figures 1 to 5 As shown, the child carrier 100A may be a child stroller, but the present invention is not limited thereto. For example, in another embodiment, the child carrier may also be a child playbed, a child basket, or a child bed. The child carrier 100A includes a frame 101A, four wheels 102A, and two anti-sway devices 200A. The front legs of the frame 101A are connected to two wheels 102A, and the rear legs of the frame 101A are connected to the other two wheels 102A. Each anti-sway device 200A is disposed between the front legs of the frame 101A and the corresponding wheel 102A. However, the number and location of the wheels and anti-sway devices of the present invention are not limited thereto, and they depend on actual needs. For example, in another embodiment, the number of anti-sway devices may be only one and is disposed between the rear legs of the frame and the corresponding wheels.

[0081] like Figures 2 to 4 As shown, each anti-sway device 200A includes a connecting seat 210A, a wheel seat 220A, a rotating shaft 230A and a limiting mechanism 240A. The connecting seat 210A is connected to the frame 101A, the wheel seat 220A is connected to the corresponding wheel 102A, the wheel seat 220A is rotatably connected to the connecting seat 210A through the rotating shaft 230A, and the limiting mechanism 240A is used to limit the shaking of the wheel seat 220A relative to the connecting seat 210A.

[0082] Specifically, the lower end of the rotating shaft member 230A is fixedly connected to the wheel seat 220A, and the upper end of the rotating shaft member 230A is rotatably connected to the connecting seat 210A. The limiting mechanism 240A includes a damping member 241A and a bearing 242A. The bearing 242A is arranged on the connecting seat 210A so that the rotating shaft member 230A can be rotatably connected to the connecting seat 210A through the bearing 242A. A mounting hole 211A is formed in the connecting seat 210A, and the damping member 241A is fixed in the mounting hole 211A. A through hole 2411A is formed on the damping member 241A. The rotating shaft member 230A is penetrated by the through hole 2411A and is tightly matched with the damping member 241A. The damping member 241A can limit the movement of the rotating shaft member 230A to limit the shaking of the wheel seat 220A relative to the connecting seat 210A.

[0083] More specifically, a groove 231A is formed on the rotating shaft 230A, and the damping member 241A includes a protrusion 2412A. The groove 231A is located on the outer wall of the rotating shaft 230A, and the protrusion 2412A is located on the inner wall of the through hole 2411A of the damping member 241A. When the rotating shaft 230A is penetrated through the through hole 2411A, the protrusion 2412A can be tightly fitted in the groove 231A to limit the rotation of the rotating shaft 230A in the horizontal direction and the vibration of the vertical direction, thereby limiting the shaking of the wheel seat 220A relative to the connecting seat 210A in the horizontal and vertical directions.

[0084] In addition, in this embodiment, the groove 231A can be a trapezoidal groove, and the protrusion 2412A can be a trapezoidal protrusion. The above structural setting enables the tight fit between the protrusion 2412A and the groove 231A to more effectively limit the movement of the rotating shaft 230A in the horizontal and vertical directions.

[0085] Furthermore, the limiting mechanism 240A further includes two fixing members 243A, and the two fixing members 243A are used to fix the damping member 241A to the connecting seat 210A. In this embodiment, the fixing members 243A can be locking screws.

[0086] Specifically, Figure 4 and Figure 5 As shown, the damping member 241A includes a main body 2413A and a neck 2414A arranged at one end of the main body 2413A, the outer side of the neck 2414A protrudes to form two bosses 2415A, and a connecting portion 2416A with a concave structure is formed between each boss 2415A and the main body 2413A. Two fixing members 243A pass through the connecting seat 210A and are respectively inserted into the two connecting portions 2416A to fix the damping member 241A to the connecting seat 210A, thereby preventing the damping member 241A from being displaced by the rotating shaft member 230A, thereby ensuring the structural stability.

[0087] However, the present invention is not limited to this embodiment, and the number of fixing members, bosses and connecting parts may depend on actual design requirements. For example, in another embodiment, the limiting mechanism may only include one fixing member, and the damping member may only be formed with one boss and one connecting part.

[0088] In this embodiment, the anti-sway device 200A utilizes the tight fit between the protrusion 2412A protruding from the damping member 241A and the groove 231A formed on the rotating shaft member 230A to limit the movement of the rotating shaft member 230A in the horizontal and vertical directions, thereby limiting the swaying of the wheel seat 220A relative to the connecting seat 210A in the horizontal and vertical directions. Therefore, the child carrier 100A is less likely to bump and shake when traveling on uneven roads, and has better riding safety and comfort.

[0089] See also Figures 6 to 8 , Figure 6 FIG. 1 is a schematic diagram of the appearance of a child carrier 100B according to a second embodiment of the present invention. Figure 7 FIG. 1 is a partial structural diagram of a child carrier 100B according to a second embodiment of the present invention. Figure 8 FIG. 2 is a cross-sectional view of an anti-sway device 200B according to a second embodiment of the present invention. Figures 6 to 8 As shown, the child carrier 100B includes a frame 101B, four wheels 102B and two anti-sway devices 200B, the front legs of the frame 101B are connected to the two wheels 102B, the rear legs of the frame 101B are connected to the other two wheels 102B, each anti-sway device 200B is arranged between the front legs of the frame 101B and the corresponding wheel 102B, each anti-sway device 200B includes a connecting seat 210B, a wheel seat 220B, a rotating shaft 230B and a limiting mechanism 240B, the connecting seat 210B is connected to the frame 101B, the wheel seat 220B is connected to the corresponding wheel 102B, the lower end of the rotating shaft 230B is rotatably connected to the wheel seat 220B, and the upper end of the rotating shaft 230B The connecting base 210B is fixedly connected, and a positioning hole 221B is formed in the wheel base 220B. The limiting mechanism 240B includes an elastic member 241B and a pushing member 242B. The pushing member 242B is movably arranged in the positioning hole 221B and adjacent to the lower end of the rotating shaft member 230B. The elastic member 241B is connected to the pushing member 242B. The elastic member 241B can provide an elastic force to push the rotating shaft member 230B along the axial direction of the rotating shaft member 230B. The elastic member 241B can drive the pushing member 242B to push the rotating shaft member 230B along the axial direction of the rotating shaft member 230B, thereby limiting the vibration of the rotating shaft member 230B in the vertical direction, and further limiting the shaking of the wheel base 220B relative to the connecting base 210B in the vertical direction.

[0090] In addition, in this embodiment, the elastic member 241B can be a compression spring, the side of the pushing member 242B adjacent to the rotating shaft member 230B can be a planar structure, and the side of the pushing member 242B adjacent to the elastic member 241B can be a sleeve structure to cover the upper end of the elastic member 241B so that the upper end of the elastic member 241B can be firmly positioned, and the limiting mechanism 240B can further include a positioning column 243B fixedly set on the wheel seat 220B, and the lower end of the elastic member 241B is sleeved on the positioning column 243B so that the lower end of the elastic member 241B can be firmly positioned. The above-mentioned structural arrangement can prevent the elastic member 241B from deviating, thereby ensuring the structural stability.

[0091] However, the present invention is not limited to this embodiment, and any structure that can position the elastic member falls within the scope of the present invention. For example, in another embodiment, the arrangement positions of the sleeve structure and the positioning column can be interchanged, that is, the sleeve structure can be formed on the wheel seat, and the positioning column can be formed on one side of the push member adjacent to the elastic member. Alternatively, in another embodiment, the limiting mechanism can include two positioning columns or two sleeve structures respectively arranged on the wheel seat and the push member. Alternatively, in another embodiment, the positioning column and the sleeve structure can be omitted.

[0092] Furthermore, if Figure 8 As shown, the limiting mechanism 240B further includes a locking member 244B, on which a long hole 2441B is formed, and the rotating shaft member 230B is penetrated by the long hole 2441B. The locking member 244B can move relative to the rotating shaft member 230B along the lateral direction of the rotating shaft member 230B through the cooperation between the long hole 2441B and the rotating shaft member 230B, thereby pushing the rotating shaft member 230B along the lateral direction of the rotating shaft member 230B, thereby limiting the rotation of the rotating shaft member 230B in the horizontal direction, and further limiting the shaking of the wheel seat 220B in the horizontal direction relative to the connecting seat 210B.

[0093] In this embodiment, a groove 231B is formed on the rotating shaft member 230B, and the engaging member 244B includes a protrusion 2442B. When the engaging member 244B pushes the rotating shaft member 230B along the lateral direction of the rotating shaft member 230B, the protrusion 2442B engages with the groove 231B along the lateral direction of the rotating shaft member 230B. The above structural arrangement can not only limit the rotation of the rotating shaft member 230B in the horizontal direction, but also realize the rapid disassembly of the wheel seat 220B and the connecting seat 210B. That is, the user can operate the engaging member 244B to disengage the protrusion 2442B from the groove 231B to allow the wheel seat 220B and the connecting seat 210B to be separated from each other.

[0094] In addition, the limiting mechanism 240B further includes a reset member 245B, which is disposed between the wheel seat 220B and the engaging member 244B to drive the engaging member 244B to push the rotating shaft member 230B along the lateral direction of the rotating shaft member 230B. The reset member 245B can enable the engaging member 244B to always have the potential energy to push the rotating shaft member 230B along the lateral direction.

[0095] In this embodiment, the anti-sway device 200B utilizes the pushing member 242B and the engaging member 244B to limit the vibration in the vertical direction and the rotation in the horizontal direction of the rotating shaft member 230B, thereby limiting the vertical and horizontal shaking of the wheel seat 220B relative to the connecting seat 210B. Therefore, the child carrier 100B is less likely to be bumped and shaken when traveling on uneven roads, and has better riding safety and comfort.

[0096] See also Figures 9 to 17 , Fig. 9 FIG. 1 is a partial structural diagram of a child carrier 100C according to a third embodiment of the present invention. Fig.10 FIG. 1 is a schematic cross-sectional view of a portion of a child carrier 100C according to a third embodiment of the present invention. Figures 11 to 14 1 is an enlarged schematic diagram of different parts of the child carrier 100C according to the third embodiment of the present invention. Fig.15 FIG. 2 is a schematic cross-sectional view of another part of the structure of the child carrier 100C according to the third embodiment of the present invention. Fig.16 is a schematic diagram of a fixing portion 244C according to a third embodiment of the present invention. Fig.17 FIG. 2 is a schematic diagram of a wheel seat body 221C according to a third embodiment of the present invention. Figures 9 to 17 As shown, the child carrier 100C includes a frame 101C, at least one wheel 102C and at least one anti-sway device 200C. The anti-sway device 200C is arranged between the frame 101C and the corresponding wheel 102C. The anti-sway device 200C includes a connecting seat 210C, a wheel seat 220C, a rotating shaft 230C and a limiting mechanism 240C. The connecting seat 210C is connected to the frame 101C, the wheel seat 220C is connected to the corresponding wheel 102C, the lower end of the rotating shaft 230C is rotatably connected to the wheel seat 220C, and the upper end of the rotating shaft 230C is fixedly connected to the connecting seat 210C.

[0097] like Fig. 9 , Fig.13 , Fig.14 and Fig.17 As shown, a long hole 2201C is formed at the lower end of the wheel seat 220C, and the long hole 2201C is set at an angle. The axle 1021C of the wheel 102C is passed through the long hole 2201C and can slide in the long hole 2201C. When the wheel 102C is subjected to a vertical external force, the wheel 102C can move relative to the wheel seat 220C through the cooperation between the axle 1021C and the long hole 2201C, so as to prevent the wheel 102C from driving the wheel seat 220C to shake in the vertical direction relative to the connecting seat 210C.

[0098] like Fig. 9 , Fig.10 , Fig.13 , Fig.14 and Fig.17As shown, the wheel seat 220C includes a wheel seat body 221C and a positioning seat 222C, the upper end of the wheel seat body 221C is formed with a receiving groove for accommodating the positioning seat 222C, and the positioning seat 222C is detachably connected to the wheel seat body 221C. In this embodiment, the wheel seat body 221C and the positioning seat 222C can be connected to each other through two locking members 223C, wherein the locking member 223C can be a locking screw. The rotating shaft component 230C is passed through the positioning seat 222C, and the limiting mechanism 240C includes a pushing component 241C. The pushing component 241C includes two positioning protrusions 2411C fixedly arranged on the wheel seat body 221C. The lower end of the rotating shaft component 230C protrudes from the positioning seat 222C and is clamped between the two positioning protrusions 2411C. The two positioning protrusions 2411C can push the rotating shaft component 230C along the axial direction of the rotating shaft component 230C, thereby limiting the vibration of the rotating shaft component 230C in the vertical direction, and further limiting the shaking of the wheel seat 220C relative to the connecting seat 210C in the vertical direction.

[0099] In this embodiment, the two positioning protrusions 2411C and the wheel seat body 221C can be integrally formed, and a guide surface 2412C can be formed on each positioning protrusion 2411C. A hemispherical mating head 231C is formed at the lower end of the rotating shaft member 230C. The mating head 231C can be guided by the two guide surfaces 2412C and inserted between the two positioning protrusions 2411C in a tight fit, thereby ensuring structural stability.

[0100] In addition, if Figures 11 to 16 As shown, the limiting mechanism 240C further includes a first gear 2431C and a second gear 2432C. The first gear 2431C is sleeved on the rotating shaft 230C, and the second gear 2432C is rotatably set on the positioning seat 222C and rotates with the first gear 2431C. When the wheel 102C is subjected to horizontal external force, the rotational cooperation between the first gear 2431C and the second gear 2432C can limit the rotation of the rotating shaft 230C in the horizontal direction, thereby limiting the shaking of the wheel seat 220C relative to the connecting seat 210C in the horizontal direction.

[0101] In this embodiment, the root circle diameter of the first gear 2431C may be larger than the root circle diameter of the second gear 2432C to achieve a better limiting effect on the horizontal rotation of the rotating shaft 230C. However, the present invention is not limited to this embodiment. In another embodiment, the root circle diameter of the first gear may be less than or equal to the root circle diameter of the second gear.

[0102] Furthermore, if Fig.10 , Fig.11 , Fig.12 and Fig.16As shown, the limiting mechanism 240C further includes a fixing portion 244C, and the fixing portion 244C is fixedly disposed on the connecting seat 210C and sleeved on the rotating shaft 230C, the first gear 2431C is disposed at the lower end portion of the fixing portion 244C, the fixing portion 244C can be integrally formed with the first gear 2431C, a receiving cavity 245C for inserting the rotating shaft 230C is formed in the fixing portion 244C, the upper end portion of the fixing portion 244C is fixed to the connecting seat 210C, and the fixing portion 244C can be used to support the internal structure of the connecting seat 210C to improve the structural stability. In this embodiment, a flat mounting portion 2441C may be formed at the upper end of the fixing portion 244C, and a first mounting hole 2442C may be formed on the mounting portion 2441C. A flat portion 232C may be formed at the upper end of the rotating shaft member 230C, and a second mounting hole 233C corresponding to the first mounting hole 2442C may be formed on the flat portion 232C. The above-mentioned structural arrangement enables the rotating shaft member 230C and the fixing portion 244C to be fixed to the connecting seat 210C using positioning pins passing through the first mounting hole 2442C and the second mounting hole 233C.

[0103] Understandably, in order to realize the rotation setting of the second gear 2432C, the positioning seat 222C may be formed with an insertion hole for the gear shaft of the second gear 2432C to be inserted. In addition, in another embodiment, the positioning seat may also be convexly provided with a pivot pin for the second gear to be sleeved.

[0104] In addition, the present invention is not limited to this embodiment. In addition to the gear, the limiting mechanism can also use at least two rotating parts to limit the rotation of the rotating shaft in the horizontal direction. For example, in another embodiment, the limiting mechanism can include a cam sleeved on the rotating shaft and a plurality of rotating disks that rotate with the cam. When the wheel is subjected to a horizontal external force, the cam can move the plurality of rotating disks, thereby limiting the rotation of the rotating shaft in the horizontal direction.

[0105] like Fig.11 and Fig.14 As shown, the anti-shake device 200C further includes a support base 250C arranged between the connecting base 210C and the positioning base 222C, the positioning base 222C protrudes with a locking protrusion 2221C, the support base 250C is provided with a protective cover 251C, the second gear 2432C is located between the positioning base 222C and the protective cover 251C, and the protective cover 251C is formed with a locking groove 2511C for the locking protrusion 2221C to engage with and an opening 2512C for the rotating shaft 230C and the first gear 2431C to pass through.

[0106] In this embodiment, the anti-sway device 200C utilizes the rotational cooperation between the push member 241C and the first gear 2431C and the second gear 2432C to limit the vibration of the rotating shaft 230C in the vertical direction and the rotation in the horizontal direction, thereby limiting the vertical and horizontal shaking of the wheel seat 220C relative to the connecting seat 210C. In addition, the anti-sway device 200C utilizes the cooperation between the wheel axle 1021C and the long hole 2201C to prevent the wheel 102C from driving the wheel seat 220C to shake in the vertical direction relative to the connecting seat 210C. Therefore, the child carrier 100C is less likely to bump and shake when traveling on uneven roads, and has better riding safety and comfort.

[0107] See also Figures 18 to 22 , Fig.18 FIG. 1 is a partial structural diagram of a child carrier 100D according to a fourth embodiment of the present invention. Fig.19 FIG. 1 is an enlarged schematic diagram of a part of the structure of a child carrier 100D according to a fourth embodiment of the present invention. Fig. 20 FIG. 2 is a schematic cross-sectional view of a portion of the structure of an anti-sway device 200D according to a fourth embodiment of the present invention. Fig.21 FIG. 2 is an exploded view of components of an anti-sway device 200D according to a fourth embodiment of the present invention. Fig. 22 FIG. 2 is a schematic diagram of a damping block 244D according to a fourth embodiment of the present invention. Figures 18 to 22 As shown, the child carrier 100D includes a frame 101D, at least one wheel 102D and at least one anti-sway device 200D. The anti-sway device 200D is arranged between the frame 101D and the corresponding wheel 102D. The anti-sway device 200D includes a connecting seat 210D, a wheel seat 220D, a rotating shaft 230D and a limiting mechanism 240D. The connecting seat 210D is connected to the frame 101D, the wheel seat 220D is connected to the corresponding wheel 102D, the lower end of the rotating shaft 230D is rotatably connected to the wheel seat 220D, the upper end of the rotating shaft 230D is fixedly connected to the connecting seat 210D, and the limiting mechanism 240D is arranged between the rotating shaft 230D and the wheel seat 220D to limit the shaking of the wheel seat 220D relative to the connecting seat 210D.

[0108] Specifically, Figure 20 to Figure 22As shown, the wheel seat 220D includes a first accommodating chamber 2201D for accommodating the rotating shaft 230D and the limiting mechanism 240D, and a through hole 2202D connected to the first accommodating chamber 2201D and for the rotating shaft 230D to pass through. The rotating shaft 230D passes through the through hole 2202D and is arranged between the wheel seat 220D and the connecting seat 210D in the vertical direction. The limiting mechanism 240D includes a bearing 241D and a mounting member 242D. The bearing 241D is arranged in the first accommodating cavity 2201D and is located below the through hole 2202D. The rotating shaft member 230D is passed through the bearing 241D to realize the rotational connection between the rotating shaft member 230D and the wheel seat 220D. The mounting member 242D is adjacent to the lower end of the rotating shaft member 230D and is used to position the rotating shaft member 230D in the first accommodating cavity 2201D. The mounting member 242D is fixed in the first accommodating cavity 2201D by at least one fastener 243D.

[0109] In addition, the limiting mechanism 240D further includes a damping block 244D and a reset member 245D. The damping block 244D is arranged in the first accommodating chamber 2201D and is located beside the lower end of the rotating shaft member 230D. The damping block 244D can move relative to the rotating shaft member 230D along the lateral direction of the rotating shaft member 230D, thereby pushing the rotating shaft member 230D along the lateral direction of the rotating shaft member 230D, thereby limiting the rotation of the rotating shaft member 230D in the horizontal direction, thereby limiting the shaking of the wheel seat 220D in the horizontal direction relative to the connecting seat 210D. The reset member 245D is arranged in the first accommodating chamber 2201D and is located between the wheel seat 220D and the damping block 244D, so as to drive the damping block 244D to push the rotating shaft member 230D along the lateral direction of the rotating shaft member 230D.

[0110] Specifically, the damping block 244D can be made of rubber or plastic material, the reset member can be a spring, and the limiting mechanism 240D can further include a positioning column 246D, the positioning column 246D is fixedly set on the damping block 244D, and the reset member 245D is sleeved on the positioning column 246D, but the present invention is not limited to this embodiment, and it depends on actual needs. For example, in another embodiment, the positioning column can be formed on the wheel seat. Alternatively, in another embodiment, the limiting mechanism can include two positioning columns fixedly set on the damping block and the wheel seat respectively. Alternatively, in another embodiment, the positioning column can also be omitted.

[0111] In this embodiment, a groove 231D is formed on the rotating shaft 230D, and the damping block 244D includes a protrusion 2441D, and when the damping block 244D pushes the rotating shaft 230D along the lateral direction of the rotating shaft 230D, the protrusion 2441D is engaged with the groove 231D along the lateral direction of the rotating shaft 230D. Specifically, the groove 231D can be an annular groove, and the end surface of the damping block 244D close to the rotating shaft 230D can be an arc surface, and the protrusion 2441D can be arranged on the arc surface.

[0112] In addition, the anti-sway device 200D further includes a buffer 250D, which is arranged in parallel with the rotating shaft 230D and installed between the wheel 102D and the wheel seat 220D. Specifically, the wheel seat 220D further includes a second accommodating chamber 2203D and two slots 2204D connected to the second accommodating chamber 2203D and used for the wheel axle of the wheel 102D to pass through. The anti-sway device 200D further includes a support block 260D, the buffer 250D and the support block 260D are arranged in the second accommodating chamber 2203D, the support block 260D is located on the wheel axle of the wheel 102D, and the buffer 250D is arranged between the support block 260D and the top wall of the second accommodating chamber 2203D to prevent the wheel 102D from driving the wheel seat 220D to move in the vertical direction, thereby limiting the vertical shaking of the wheel seat 220D relative to the connecting seat 210D. However, the present invention is not limited to this embodiment. For example, in another embodiment, a support portion for one end of the buffer member to abut against and for connecting to the axle of the wheel extends from the bottom of the second accommodating cavity.

[0113] In addition, the anti-sway device 200D further includes a first connecting member 270D and a second connecting member 280D, wherein the first connecting member 270D is pivotally connected to the second connecting member 280D, and the second connecting member 280D is pivotally connected to the wheel seat 220D through the axle of the wheel 102D. Specifically, the second connecting member 280D has a receiving cavity 281D to receive the outer periphery 2205D of the second receiving cavity 2203D of the wheel seat 220D.

[0114] In this embodiment, the anti-sway device 200D uses a damping block 244D to limit the rotation of the rotating shaft 230D in the horizontal direction, thereby limiting the horizontal shaking of the wheel seat 220D relative to the connecting seat 210D. In addition, the anti-sway device 200D also uses a buffer 250D to prevent the wheel 102D from driving the wheel seat 220D to shake in the vertical direction relative to the connecting seat 210D. Therefore, the child carrier 100D is less likely to bump and shake when traveling on uneven roads, and has better riding safety and comfort.

[0115] See also Figure 23 to Figure 27 , Fig.23 FIG. 1 is a partial structural diagram of a child carrier 100E according to a fifth embodiment of the present invention. Fig.24 For the fifth embodiment of the present invention Fig.23 The enlarged schematic diagram of the structure of part A of the child carrier 100E is shown. Fig.25 FIG. 2 is an exploded view of components of an anti-sway device 200E according to a fifth embodiment of the present invention. Fig.26 FIG. 1 is a schematic cross-sectional view of a part of the structure of a child carrier 100E according to a fifth embodiment of the present invention. Fig. 27 For the fifth embodiment of the present invention Fig.26FIG. 1 is an enlarged schematic diagram of the structure of part B of the child carrier 100E. Figure 23 to Figure 27 As shown, the child carrier 100E includes a frame 101E, at least one wheel 102E and at least one anti-sway device 200E. The anti-sway device 200E is arranged between the frame 101E and the corresponding wheel 102E. The anti-sway device 200E includes a connecting seat 210E, a wheel seat 220E, a rotating shaft 230E and a limiting mechanism 240E. The connecting seat 210E is connected to the frame 101E, the wheel seat 220E is connected to the corresponding wheel 102E, the lower end of the rotating shaft 230E is rotatably connected to the wheel seat 220E, the upper end of the rotating shaft 230E is fixedly connected to the connecting seat 210E, and the limiting mechanism 240E is used to limit the shaking of the wheel seat 220E relative to the connecting seat 210E.

[0116] Specifically, Fig.25 and Fig. 27 As shown, the limiting mechanism 240E includes a rotating sleeve 241E and a damping plate 242E. The rotating sleeve 241E is fixedly provided on the wheel seat 220E. The rotating shaft 230E passes through the rotating sleeve 241E and can rotate relative to the rotating sleeve 241E to realize the rotational connection between the rotating shaft 230E and the wheel seat 220E. The damping plate 242E is provided on the rotating shaft 230E and can push the rotating sleeve 241E along the axial direction of the rotating shaft 230E to limit the vibration of the rotating shaft 230E in the vertical direction, thereby limiting the shaking of the wheel seat 220E relative to the connecting seat 210E in the vertical direction.

[0117] In this embodiment, the rotating shaft 230E includes a limiting portion 231E and an extension portion 232E. The rotating sleeve 241E includes a through hole for the extension portion 232E to be inserted. The limiting portion 231E is used to limit the distance that the extension portion 232E is inserted into the through hole. The damping plate 242E is located between the limiting portion 231E and the rotating sleeve 241E. The extension portion 232E passes through the through hole and is connected to the connecting seat 210E. Furthermore, the rotating sleeve 241E further includes a contact portion 2411E and a rotating portion 2412E, the wheel seat 220E includes a mounting hole 221E for inserting the extension portion 232E and the rotating portion 2412E, the rotating portion 2412E is located between the extension portion 232E and the wheel seat 220E, the contact portion 2411E and the limiting portion 231E are exposed in the mounting hole 221E, the damping plate 242E is located between the contact portion 2411E and the limiting portion 231E, the contact portion 2411E can contact the wheel seat 220E in a vertical direction, and the damping plate 242E can contact the contact portion 2411E in a vertical direction, so that the shaking of the wheel seat 220E relative to the connecting seat 210E in a vertical direction can be effectively limited.

[0118] In this embodiment, the rotating shaft 230E may be a hollow tubular structure to achieve the purpose of lightness. In addition, the rotating sleeve 241E may be made of plastic material so that the rotating sleeve 241E has a certain degree of elasticity and the abutting portion 2411E and the rotating portion 2412E are integrally formed.

[0119] In addition, if Fig.25 and Fig.26 As shown, the limiting mechanism 240E further includes a baffle 243E, which is located above the rotating sleeve 241E. The rotating shaft 230E passes through the baffle 243E. The baffle 243E is located between the rotating sleeve 241E and the connecting seat 210E and between the wheel seat 220E and the connecting seat 210E, thereby limiting the shaking of the wheel seat 220E relative to the connecting seat 210E in the horizontal direction.

[0120] In addition, the anti-sway device 200E further includes a brake member 250E and a shock absorbing portion 260E. When the brake member 250E is operated, it can abut against the wheel 102E to decelerate the wheel 102E. The shock absorbing portion 260E is located below the brake member 250E and is elastic to prevent the wheel 102E from driving the wheel seat 220E to shake in the vertical direction relative to the connecting seat 210E. In this embodiment, the shock absorbing portion 260E can be made of plastic material, and at least one elliptical buffer portion 261E can be provided on the shock absorbing portion 260E to improve the shock absorbing effect of the shock absorbing portion 260E. However, the present invention is not limited to this. For example, in another embodiment, the buffer portion can also be circular or quadrilateral.

[0121] In this embodiment, the anti-sway device 200E utilizes a damping plate 242E and a baffle 243E to respectively limit the vertical and horizontal swaying of the wheel seat 220E relative to the connecting seat 210E. In addition, the anti-sway device 200E further utilizes a shock-absorbing portion 260E to prevent the wheel 102E from driving the wheel seat 220E to sway in the vertical direction relative to the connecting seat 210E. Therefore, the child carrier 100E is less likely to bump and shake when traveling on uneven roads, and has better riding safety and comfort.

[0122] See also Figures 28 to 30 , Fig.28 FIG. 1 is a partial structural diagram of a child carrier 100F according to a sixth embodiment of the present invention. Fig.29 FIG. 1 is an enlarged schematic diagram of the structure of part C of a child carrier 100F according to a sixth embodiment of the present invention. Fig.30 FIG. 2 is a schematic diagram of a socket 241F according to a sixth embodiment of the present invention. Figures 28 to 30As shown, the child carrier 100F includes a frame, at least one wheel 102F and at least one anti-sway device 200F. The anti-sway device 200F is arranged between the frame and the corresponding wheel 102F. The anti-sway device 200F includes a connecting seat 210F, a wheel seat 220F, a rotating shaft 230F and a limiting mechanism 240F. The connecting seat 210F is connected to the frame, the wheel seat 220F is connected to the corresponding wheel 102F, the lower end of the rotating shaft 230F is fixedly connected to the wheel seat 220F, the upper end of the rotating shaft 230F is rotatably connected to the connecting seat 210F, and the limiting mechanism 240F is used to limit the shaking of the wheel seat 220F relative to the connecting seat 210F.

[0123] Specifically, Fig.30 As shown, the limiting mechanism 240F includes a sleeve 241F, which is fixedly arranged on the connecting seat 210F and sleeved on the rotating shaft 230F. At least one notch 2411F is formed on the wall surface of the sleeve 241F. The inner diameter of the sleeve 241F is smaller than the outer diameter of the rotating shaft 230F, so that when the sleeve 241F is sleeved on the rotating shaft 230F, the sleeve 241F is stretched open by the rotating shaft 230F and elastically clamps the rotating shaft 230F to limit the rotation of the rotating shaft 230F in the horizontal direction, thereby limiting the shaking of the wheel seat 220F relative to the connecting seat 210F in the horizontal direction.

[0124] In addition, if Fig.29 As shown, the anti-sway device 200F further includes a buffer member 250F, and the buffer member 250F is disposed between the wheel seat 220F and the connecting seat 210F to prevent the connecting seat 210F from being driven by the wheel seat 220F and shaking in the vertical direction.

[0125] In this embodiment, the anti-sway device 200F uses the sleeve 241F to limit the rotation of the rotating shaft 230F in the horizontal direction, thereby limiting the horizontal shaking of the wheel seat 220F relative to the connecting seat 210F. In addition, the anti-sway device 200F also uses the buffer 250F to prevent the connecting seat 210F from being driven by the wheel seat 220F and shaking in the vertical direction. Therefore, the child carrier 100F is less likely to bump and shake when traveling on uneven roads, and has better riding safety and comfort.

[0126] See also Figure 31 to Figure 35 , Fig.31 FIG. 1 is a partial structural diagram of a child carrier 100G according to a seventh embodiment of the present invention. Fig.32 FIG. 1 is an enlarged schematic diagram of a partial structure of a child carrier 100G according to a seventh embodiment of the present invention. Fig.33 FIG. 2 is an enlarged schematic diagram of another part of the structure of the child carrier 100G according to the seventh embodiment of the present invention. Fig.34 FIG. 1 is an exploded view of some structural components of a child carrier 100G according to a seventh embodiment of the present invention. Fig.35 FIG. 1 is a schematic cross-sectional view of a partial structure of a child carrier 100G according to a seventh embodiment of the present invention. Figure 31 to Figure 35 As shown, the child carrier 100G includes a frame 101G, at least one wheel 102G and at least one anti-sway device 200G. The anti-sway device 200G is arranged between the frame 101G and the corresponding wheel 102G. The anti-sway device 200G includes a connecting seat 210G, a wheel seat 220G, a rotating shaft 230G and a limiting mechanism 240G. The connecting seat 210G is connected to the frame 101G, the wheel seat 220G is connected to the corresponding wheel 102G, the lower end of the rotating shaft 230G is fixedly connected to the wheel seat 220G, and the upper end of the rotating shaft 230G is rotatably connected to the connecting seat 210G. The limiting mechanism 240G is used to limit the shaking of the wheel seat 220G relative to the connecting seat 210G.

[0127] Specifically, the limiting mechanism 240G includes two bearings 241G, which are fixedly arranged on the connecting seat 210G, and the rotating shaft 230G is passed through the two bearings 241G to realize the rotation connection between the rotating shaft 230G and the connecting seat 210G. The limiting mechanism 240G also includes a sleeve 242G and an elastic member 243G, the sleeve 242G is movably arranged on the connecting seat 210G and sleeved on the rotating shaft 230G, and the elastic member 243G is arranged between the connecting seat 210G and the sleeve 242G to drive the sleeve 242G to push the rotating shaft 230G along the lateral direction of the rotating shaft 230G to limit the rotation of the rotating shaft 230G in the horizontal direction, thereby limiting the shaking of the wheel seat 220G relative to the connecting seat 210G in the horizontal direction. However, the present invention is not limited to this embodiment. In another embodiment, the limiting mechanism may only include one bearing.

[0128] More specifically, if Fig.34 and Fig.35 As shown, the connecting seat 210G includes a seat body 211G, an operating member 212G and a positioning member 213G, a sleeve 242G, a bearing 241G and a rotating shaft member 230G are arranged in the seat body 211G, the sleeve 242G is located between the two bearings 241G, the operating member 212G and the positioning member 213G are movably arranged on the seat body 211G and are linked to each other, the positioning member 213G passes through the seat body 211G and engages with the rotating shaft member 230G, the operating member 212G can drive the positioning member 213G to disengage from the rotating shaft member 230G, a positioning column 2421G is protruding from the sleeve 242G, one end of the elastic member 243G is sleeved on the positioning column 2421G, another positioning column 2121G is protruding from the operating member 212G, and the other end of the elastic member 243G is sleeved on the positioning column 2121G.

[0129] Furthermore, if Figure 32 to Figure 34As shown, the limiting mechanism 240G further includes a contact member 244G, and the contact member 244G is disposed between the connecting seat 210G and the wheel seat 220G. Specifically, the contact member 244G is disposed on the wheel seat 220G and protrudes from the plane 221G of the wheel seat 220G. The contact member 244G is used to contact the plane 214G of the connecting seat 210G close to the wheel seat 220G to avoid direct contact between the planes 214G and 221G, which can not only reduce the friction area between the planes 214G and 221G, but also reduce the noise generated when the wheel seat 220G moves relative to the connecting seat 210G.

[0130] In this embodiment, the anti-sway device 200G uses the sleeve 242G to limit the rotation of the rotating shaft 230G in the horizontal direction, thereby limiting the horizontal shaking of the wheel seat 220G relative to the connecting seat 210G, so that the child carrier 100G is less likely to be bumped and shaken when traveling on uneven roads, and has better riding safety and comfort. In addition, the anti-sway device 200G also uses the abutment member 244G to prevent the plane 214G from directly contacting the plane 221G, thereby reducing the friction area between the plane 214G and the plane 221G and reducing the noise generated when the wheel seat 220G moves relative to the connecting seat 210G.

[0131] See also Figures 36 to 40 , Fig.36 FIG. 1 is a schematic diagram of the appearance of a child carrier 100H according to an eighth embodiment of the present invention. Fig.37 FIG. 1 is a partial structural diagram of a child carrier 100H according to an eighth embodiment of the present invention. Fig.38 This is an exploded view of some structural components of a child carrier 100H according to an eighth embodiment of the present invention. Fig.39 FIG. 1 is a schematic diagram of a partial internal structure of a child carrier 100H according to an eighth embodiment of the present invention. Fig.40 FIG. 1 is a schematic diagram of another part of the internal structure of the child carrier 100H according to the eighth embodiment of the present invention. Figures 36 to 40 As shown, the child carrier 100H includes a frame 101H, at least one wheel 102H and at least one anti-sway device 200H. The anti-sway device 200H is arranged between the frame 101H and the corresponding wheel 102H. The anti-sway device 200H includes a connecting seat 210H, a wheel seat 220H, a rotating shaft 230H and a limiting mechanism 240H. The connecting seat 210H is connected to the frame 101H, the wheel seat 220H is connected to the corresponding wheel 102H, the lower end of the rotating shaft 230H is fixedly connected to the wheel seat 220H, and the upper end of the rotating shaft 230H is rotatably connected to the connecting seat 210H. The limiting mechanism 240H is used to limit the shaking of the wheel seat 220H relative to the connecting seat 210H.

[0132] Specifically, the limiting mechanism 240H includes a fixing seat 241H, which is fixedly connected to the wheel seat 220H and sleeved on the rotating shaft 230H to achieve a fixed connection between the rotating shaft 230H and the wheel seat 220H. A receiving hole 211H is formed on the connecting seat 210H. The fixing seat 241H is at least partially arranged in the receiving hole 211H and can rotate relative to the receiving hole 211H to achieve a rotational connection between the rotating shaft 230H and the connecting seat 210H. The fixing seat 241H is tightly fitted in the receiving hole 211H to utilize the friction between the fixing seat 241H and the hole wall of the receiving hole 211H to limit the rotation of the rotating shaft 230H in the horizontal direction, thereby limiting the shaking of the wheel seat 220H relative to the connecting seat 210H in the horizontal direction.

[0133] More specifically, if Figures 38 to 40 As shown, the fixing seat 241H includes a fixing body 2411H and two elastic abutting portions 2412H disposed on the fixing body 2411H. Preferably, in this embodiment, the fixing body 2411H can be fixedly connected to the wheel seat 220H through two locking members 2413H, wherein the locking members 2413H can be locking screws, and the two elastic abutting portions 2412H can be two elastic sheets installed on the fixing body 2411H and opposite to each other. When the fixing seat 241H is tightly fitted with the receiving hole 211H, the two elastic abutting portions 2412H abut against the hole wall of the receiving hole 211H and are squeezed by the hole wall of the receiving hole 211H to generate elastic deformation. The friction force generated between the elastic abutting portions 2412H and the hole wall of the receiving hole 211H can effectively limit the rotation of the rotating shaft 230H in the horizontal direction, thereby limiting the shaking of the wheel seat 220H relative to the connecting seat 210H in the horizontal direction. However, the present invention is not limited to this embodiment. In another embodiment, the fixing seat may also include only one elastic contact portion, and the elastic contact portion may be a rubber protrusion.

[0134] In this embodiment, the anti-sway device 200H uses the friction between the fixing seat 241H and the receiving hole 211H to limit the horizontal rotation of the rotating shaft 230H, thereby limiting the horizontal shaking of the wheel seat 220H relative to the connecting seat 210H. Therefore, the child carrier 100H is less likely to bump and shake when traveling on uneven roads, and has better riding safety and comfort.

[0135] In addition, in another embodiment, the child carrier may also simultaneously use anti-sway devices of different embodiments. For example, anti-sway devices of different embodiments may be disposed between different wheels and the frame of the child carrier, depending on actual needs.

[0136] Compared with the prior art, the limiting mechanism of the anti-sway device of the present invention can limit the swaying of the wheel seat connected to the wheel relative to the connecting seat of the connecting frame. Therefore, the present invention can effectively prevent the child carrier from being bumped and shaken when traveling on uneven roads, thereby improving the riding safety and comfort of the child carrier.

[0137] Those skilled in the art will readily appreciate that many modifications and variations of the apparatus and methods of the present invention can be made while maintaining the teachings of the present invention. Therefore, the above disclosure should be interpreted as being limited only by the limits of the appended claims.

Claims

1. An anti-sway device for wheels of a child carrier, comprising: A connecting seat connected to the frame of the child carrier; a wheel seat connected to the wheel of the child carrier; A rotating shaft member fixedly connected to one of the connecting seat and the wheel seat and rotationally connected to the other of the connecting seat and the wheel seat; as well as A limiting mechanism pushes the rotating shaft member along the axial direction of the rotating shaft member to limit the vibration of the rotating shaft member along the axial direction of the rotating shaft member.

2. The anti-sway device according to claim 1, wherein: The limiting mechanism includes a pushing member, which is movably arranged on the other of the connecting seat and the wheel seat and pushes the rotating shaft member along the axial direction of the rotating shaft member.

3. The anti-swaying device according to claim 2, wherein: The lower end of the rotating shaft is rotatably connected to the wheel seat, and the upper end of the rotating shaft is fixedly connected to the connecting seat. A positioning hole is formed in the wheel seat, and the pushing member is movably arranged in the positioning hole and adjacent to the lower end of the rotating shaft.

4. The anti-swaying device according to claim 2, wherein: The limiting mechanism comprises an elastic member, the elastic member is connected to the pushing member, and the elastic member provides an elastic force to push the rotating shaft member along the axial direction of the rotating shaft member, so as to drive the pushing member to push the rotating shaft member.

5. The anti-swaying device according to claim 4, wherein: The limiting mechanism comprises at least one positioning column, the at least one positioning column is fixedly arranged on the other of the connecting seat and the wheel seat and / or the pushing member, and the elastic member is sleeved on the at least one positioning column; or The limiting mechanism includes at least one sleeve structure, and the at least one sleeve structure is fixedly arranged on the other of the connecting seat and the wheel seat and / or the pushing member, and the at least one sleeve structure is sleeved on the elastic member.

6. The anti-sway device according to any one of claims 1 to 5, wherein: The limiting mechanism pushes the rotating shaft member along the lateral direction of the rotating shaft member to limit the rotation of the rotating shaft member in the horizontal direction.

7. The anti-swaying device according to claim 6, wherein: The limiting mechanism includes a clamping member, which is movably arranged on the other of the connecting seat and the wheel seat and pushes the rotating shaft member along the lateral direction of the rotating shaft member.

8. The anti-swaying device according to claim 7, wherein: A long hole is formed on the engaging member, and the rotating shaft member is inserted into the long hole. The engaging member can move relative to the rotating shaft member along the lateral direction of the rotating shaft member through the cooperation between the long hole and the rotating shaft member, thereby pushing the rotating shaft member along the lateral direction of the rotating shaft member.

9. The anti-swaying device according to claim 7, wherein: A groove is formed on the rotating shaft component, and the engaging component includes a protrusion. When the engaging component pushes the rotating shaft component along the lateral direction of the rotating shaft component, the protrusion is engaged with the groove along the lateral direction of the rotating shaft component.

10. The anti-swaying device according to claim 7, wherein: The limiting mechanism includes a reset member, and the reset member is arranged between the other of the connecting seat and the wheel seat and the engaging member to drive the engaging member to push the rotating shaft member along the lateral direction of the rotating shaft member.

11. The anti-swaying device according to claim 1, wherein: The limiting mechanism includes a pushing member, which is fixedly arranged on the other of the connecting seat and the wheel seat and pushes the rotating shaft member along the axial direction of the rotating shaft member.

12. The anti-swaying device according to claim 11, wherein: The pushing member includes two positioning protrusions fixedly arranged on the other of the connecting seat and the wheel seat, and the end of the rotating shaft member is clamped between the two positioning protrusions, so that the two positioning protrusions push the rotating shaft member along the axial direction of the rotating shaft member.

13. The anti-swaying device according to claim 12, wherein: The two positioning protrusions are respectively formed with guide surfaces, and the end of the rotating shaft is formed with a hemispherical matching head, which is guided by the two guide surfaces and inserted between the two positioning protrusions in a tight fit manner.

14. The anti-sway device according to any one of claims 11 to 13, wherein: The limiting mechanism limits the rotation of the rotating shaft in the horizontal direction.

15. The anti-swaying device according to claim 14, wherein: The limiting mechanism further includes a plurality of rotating parts, and the plurality of rotating parts are rotatably matched with each other.

16. The anti-swaying device according to claim 15, wherein: The plurality of rotating parts include a first gear and a second gear, wherein the first gear is fixedly disposed on one of the connecting seat and the wheel seat and sleeved on the rotating shaft, and the second gear is rotationally disposed on the other of the connecting seat and the wheel seat.

17. The anti-swaying device according to claim 16, wherein: The root circle diameter of the first gear is greater than the root circle diameter of the second gear.

18. The anti-swaying device according to claim 16, wherein: The limiting mechanism further includes a fixing portion, and the upper end portion of the fixing portion is fixedly disposed on one of the connecting seat and the wheel seat, and the first gear is fixedly disposed on the lower end portion of the fixing portion.

19. The anti-swaying device according to claim 16, wherein: The other one of the connecting seat and the wheel seat is provided with an insertion hole for inserting the gear shaft of the second gear, or the other one of the connecting seat and the wheel seat is protrudingly provided with a pivot pin for sleeve mounting of the second gear.

20. The anti-swaying device according to claim 16, wherein: The anti-sway device further includes a support seat arranged between the connecting seat and the wheel seat, the second gear is located between the other of the connecting seat and the wheel seat and the support seat, and the support seat is provided with an opening for the rotating shaft and the first gear to pass through.

21. The anti-sway device according to claim 14, wherein the limiting mechanism further comprises a cam sleeved on the rotating shaft and a plurality of rotating disks rotatably matched with the cam, and the cam can move the plurality of rotating disks.

22. The anti-sway device according to claim 1, wherein: The anti-sway device further comprises a support seat arranged between the connecting seat and the wheel seat, a locking protrusion is protruded from the wheel seat, and the support seat is provided with a locking groove for the locking protrusion to engage.

23. The anti-sway device according to claim 1, wherein: The limiting mechanism further includes a fixing portion, and the fixing portion is fixedly disposed on one of the connecting seat and the wheel seat and sleeved on the rotating shaft, and the fixing portion is fixedly connected to the rotating shaft.

24. The anti-swaying device according to claim 23, wherein: The anti-sway device also includes a positioning pin, a receiving cavity for inserting the rotating shaft is formed in the fixing part, a first mounting hole is formed in the fixing part, a second mounting hole is formed in the rotating shaft, and the positioning pin passes through the first mounting hole and the second mounting hole.

25. The anti-sway device according to claim 1, wherein: The wheel seat is formed with a long hole, the long hole is arranged obliquely, and the wheel axle of the wheel is passed through the long hole and can slide in the long hole.

26. An anti-sway device for wheels of a child carrier, comprising: A connecting seat connected to the frame of the child carrier; a wheel seat connected to the wheel of the child carrier; A rotating shaft member fixedly connected to one of the connecting seat and the wheel seat and rotationally connected to the other of the connecting seat and the wheel seat; as well as The limiting mechanism includes a clamping member, which is movably arranged on the other of the connecting seat and the wheel seat and pushes the rotating shaft member along the lateral direction of the rotating shaft member.

27. The anti-swaying device according to claim 26, wherein: A long hole is formed on the engaging member, and the rotating shaft member is inserted into the long hole. The engaging member can move relative to the rotating shaft member along the lateral direction of the rotating shaft member through the cooperation between the long hole and the rotating shaft member, thereby pushing the rotating shaft member along the lateral direction of the rotating shaft member.

28. The anti-swaying device according to claim 26 or 27, wherein: A groove is formed on the rotating shaft component, and the engaging component includes a protrusion. When the engaging component pushes the rotating shaft component along the lateral direction of the rotating shaft component, the protrusion is engaged with the groove along the lateral direction of the rotating shaft component.

29. The anti-swaying device according to claim 28, wherein: The limiting mechanism includes a reset member, and the reset member is arranged between the other of the connecting seat and the wheel seat and the engaging member to drive the engaging member to push the rotating shaft member along the lateral direction of the rotating shaft member.

30. An anti-sway device for wheels of a child carrier, comprising: A connecting seat connected to the frame of the child carrier; a wheel seat connected to the wheel of the child carrier; A rotating shaft member fixedly connected to one of the connecting seat and the wheel seat and rotationally connected to the other of the connecting seat and the wheel seat; as well as The limiting mechanism comprises a plurality of rotating parts, which are rotatably matched with each other to limit the rotation of the rotating shaft in the horizontal direction.

31. The anti-swaying device according to claim 30, wherein: The plurality of rotating parts include a first gear and a second gear, wherein the first gear is fixedly disposed on one of the connecting seat and the wheel seat and sleeved on the rotating shaft, and the second gear is rotatably disposed on one of the connecting seat and the wheel seat.

32. The anti-sway device according to claim 31, wherein: The root circle diameter of the first gear is greater than the root circle diameter of the second gear.

33. The anti-swaying device according to claim 31, wherein: The limiting mechanism further includes a fixing portion, and the upper end portion of the fixing portion is fixedly disposed on one of the connecting seat and the wheel seat, and the first gear is fixedly disposed on the lower end portion of the fixing portion.

34. The anti-swaying device according to claim 31, wherein: The other one of the connecting seat and the wheel seat is provided with an insertion hole for inserting the gear shaft of the second gear, or the other one of the connecting seat and the wheel seat is protrudingly provided with a pivot pin for sleeve mounting of the second gear.

35. The anti-swaying device according to claim 31, wherein: It also includes a support base arranged between the connecting base and the wheel base, the second gear is located between the other of the connecting base and the wheel base and the support base, and the support base is provided with an opening for the rotating shaft and the first gear to pass through.

36. The anti-swaying device according to claim 30, wherein: The plurality of rotating parts include a cam sleeved on the rotating shaft part and a plurality of rotating disks rotatably matched with the cam. The cam can move the plurality of rotating disks so that the rotation of the rotating shaft part in the horizontal direction is restricted.

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