Damper adapted for wheels of a child carrier - Patent application

Abstract

To provide a vibration control device adapted for a wheel of an infant carrier.SOLUTION: A vibration control device (200G) adapted for a wheel (102G) of an infant carrier (100G) includes: a connection base (210G) connected to a frame (101G) of the infant carrier (100G); a wheel base (220G) connected to the wheel (102G) of the infant carrier (100G); and a suppression mechanism (240G) configured to suppress vibration movement of the wheel base (220G) relative to the connection base (210G) and having a contact component (244G) protruding from one of the wheel base (220G) and the connection base (210G) and configured to contact with a surface (214G) of the other of the wheel base (220G) and the connection base (210G) located adjacent to the one of the wheel base (220G) and the connection base (210G).SELECTED DRAWING: Figure 34

Description

[Technical Field]

[0001] The present invention relates to an anti-shimmy device adapted for wheels of a child carrier as claimed in claim 1. [Background technology]

[0002] Child carriers, such as strollers, can reduce the burden on parents when taking their children outdoors and are therefore popular and widely used. Child carriers typically use wheels to improve maneuverability. However, conventional child carriers can bounce and shake due to rocking and / or wheel swaying when the child carrier travels over uneven terrain, which adversely affects the safety and comfort of riding in the child carrier. Therefore, there is a need to provide a solution to solve the aforementioned problems. Summary of the Invention [Problem to be solved by the invention]

[0003] With this in mind, the present invention aims to provide a vibration damping device adapted for the wheels of a child carrier. [Means for solving the problem]

[0004] This is achieved by a vibration damping device adapted for wheels of a child carrier according to claim 1. The dependent claims relate to corresponding further developments and improvements.

[0005] As will become more clearly apparent from the following detailed description, the claimed vibration damping device is adapted for a wheel of a child carrier. The vibration damping device includes a connection base, a wheel base, a spindle component, and a damping mechanism. The connection base is connected to a frame of the child carrier. The wheel base is connected to a wheel of the child carrier. The spindle component is fixedly connected to one of the connection base and the wheel base and rotatably connected to the other of the connection base and the wheel base. The damping mechanism is configured to damp vibrational movement of the wheel base relative to the connection base.

[0006] According to an embodiment of the present invention, the suppression mechanism includes a damping component fixedly connected to the other of the connection base and the wheel base, wherein a through hole is disposed in the damping component, and the spindle component passes through the through hole and is tightly fitted to the damping component.

[0007] According to an embodiment of the present invention, a recess is disposed in the spindle component, and a protrusion protrudes from the damping component and fits tightly into the recess.

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

[0009] According to an embodiment of the present invention, the suppression mechanism further includes at least one fixed component configured to fixedly connect the damping component to the other of the connection base and the wheel base.

[0010] According to an embodiment of the present invention, the restraining mechanism further includes a bearing disposed on the other of the connection base and the wheel base, and the spindle component is rotatably connected to the other of the connection base and the wheel base by the bearing.

[0011] According to an embodiment of the present invention, the restraining mechanism includes a pressing component configured to press against the spindle component along an axial direction of the spindle component.

[0012] According to an embodiment of the present invention, the pressing component is movably disposed on the other of the connection base and the wheel base, and the restraining mechanism further includes an elastic component connected to the pressing component to cause the pressing component to press the spindle component.

[0013] According to an embodiment of the present invention, the restraining mechanism further includes an engagement component, a slot disposed in the engagement component, the spindle component passes through the slot, and the engagement component is movable relative to the spindle component along a lateral direction of the spindle component by cooperation of the slot and the spindle component to press the spindle component along the lateral direction of the spindle component.

[0014] According to an embodiment of the present invention, a recess is disposed on the spindle component, and a protrusion protrudes from the engaging component and engages with the recess along the lateral direction of the spindle component when the engaging component presses the spindle component along the lateral direction of the spindle component.

[0015] According to an embodiment of the present invention, the engagement component is movably arranged on the other of the connection base and the wheel base, and the restraining mechanism further includes a return component arranged between the engagement component and the other of the connection base and the wheel base to cause the engagement component to press the spindle component along a lateral direction of the spindle component.

[0016] According to an embodiment of the present invention, the restraining mechanism further includes at least one positioning post fixedly disposed on at least one of the pressing component and the other of the connection base and the wheel base, and the elastic component is sleeved on the at least one positioning post.

[0017] According to an embodiment of the present invention, the pressing component includes two protrusions fixedly disposed on one of the connection base and the wheel base, and the end of the spindle component is clamped by the two protrusions.

[0018] According to an embodiment of the present invention, the restraining mechanism further includes at least two rotating bodies rotatably engaged with each other.

[0019] According to an embodiment of the present invention, the at least two rotating bodies include a first gear and a second gear, the first gear being fixedly disposed on the other of the connection base and the wheel base and sleeved on the spindle component, and the second gear being rotatably disposed on one of the connection base and the wheel base.

[0020] According to an embodiment of the present invention, the restraining mechanism further includes a fixed part, which is fixedly disposed on the other of the connection base and the wheel base and is sleeved on the spindle component.

[0021] According to an embodiment of the present invention, the first gear and the fixed portion are integrally formed with each other.

[0022] According to an embodiment of the present invention, the root diameter of the first gear is larger than the root diameter of the second gear.

[0023] According to an embodiment of the present invention, the suppression mechanism includes a damping block disposed on one side of the spindle component and movable relative to the spindle component along the lateral direction of the spindle component to press the spindle component along the lateral direction of the spindle component.

[0024] According to an embodiment of the present invention, a recess is disposed in the spindle component, and a protrusion protrudes from the damping block and engages with the recess along the lateral direction of the spindle component when the damping block presses the spindle component along the lateral direction of the spindle component.

[0025] According to an embodiment of the present invention, the damping block is movably arranged on the other of the connection base and the wheel base, and the suppression mechanism further includes a return component arranged between the damping block and the other of the connection base and the wheel base to cause the damping block to press the spindle component along the lateral direction of the spindle component.

[0026] According to an embodiment of the present invention, the suppression mechanism further includes at least one positioning post fixedly disposed on at least one of the damping block and the other of the connection base and the wheel base, and the return component is sleeved on the at least one positioning post.

[0027] According to an embodiment of the present invention, the restraint mechanism further includes a mounting component fixedly disposed on the other of the connection base and the wheel base, and the spindle component is rotatably connected to the other of the connection base and the wheel base by the mounting component.

[0028] According to an embodiment of the present invention, the vibration damping device further includes a buffer component disposed between the wheel and the wheel base, and the buffer component and the spindle component are arranged in parallel.

[0029] According to an embodiment of the present invention, the suppression mechanism includes a rotating sleeve and a damping plate. The rotating sleeve is fixedly disposed on the other of the connection base and the wheel base. The spindle component passes through the rotating sleeve and is rotatable relative to the rotating sleeve. The damping plate is disposed on the spindle component and presses the rotating sleeve along the axial direction of the spindle component.

[0030] According to an embodiment of the present invention, the suppression mechanism includes a damping plate, which is disposed on the spindle component and presses the rotating sleeve along the axial direction of the spindle component.

[0031] According to an embodiment of the present invention, the suppression mechanism further includes a rotating sleeve. The rotating sleeve is fixedly disposed on the other of the connection base and the wheel base. The spindle component includes a suppression portion and an extension portion. The rotating sleeve includes a through hole for insertion of the extension portion. The suppression portion is for suppressing the insertion length of the extension portion into the through hole. The damping plate is positioned between the suppression portion and the rotating sleeve, and the extension portion passes through the through hole and is connected to the connection base.

[0032] According to an embodiment of the present invention, the restraining mechanism includes a covering component, which is fixedly disposed on the other of the connection base and the wheel base and sleeved over the spindle component.

[0033] According to an embodiment of the present invention, at least one notch is arranged in a wall of the covering component, the inner diameter of the covering component being smaller than the outer diameter of the spindle component.

[0034] According to an embodiment of the present invention, the restraining mechanism includes a shaft sleeve and an elastic component, the shaft sleeve being movably disposed on the other of the connection base and the wheel base and sleeved on the spindle component, and the elastic component being disposed between the shaft sleeve and the other of the connection base and the wheel base to cause the shaft sleeve to press the spindle component along a lateral direction of the spindle component.

[0035] According to an embodiment of the present invention, the restraining mechanism further includes at least one bearing fixedly disposed on the other of the connection base and the wheel base.

[0036] According to an embodiment of the present invention, the restraining mechanism further includes an abutment component disposed between the connection base and the wheel base.

[0037] According to an embodiment of the present invention, the restraining mechanism includes a fixed base, the fixed base is fixedly connected to one of the connecting base and the wheel base, and is sleeved on the spindle component, and a receiving hole is disposed in the other of the connecting base and the wheel base, and the fixed base fits tightly into the receiving hole.

[0038] According to an embodiment of the present invention, the fixed base includes a fixed main body and at least one elastic abutment portion, and the at least one elastic abutment portion abuts against the wall portion of the accommodating hole and is elastically deformed when the fixed base is tightly fitted into the accommodating hole.

[0039] In summary, the damping mechanism of the vibration damping device of the present invention can damp the vibration motion of the wheel base connected to the wheel relative to the connection base connected to the frame, thus effectively preventing the child carrier from bouncing and shaking when the child carrier travels over uneven roads, improving the safety and comfort of riding in the child carrier.

[0040] These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.

[0041] In the following, the invention will be further explained, by way of example, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0042] [Figure 1] 1 is a schematic diagram of a pediatric carrier according to a first embodiment of the present invention. [Figure 2] 1 is a partial view of a child carrier according to a first embodiment of the present invention. [Figure 3] 1 is an exploded view of a vibration damping device according to a first embodiment of the present invention. [Figure 4] 1 is a cross-sectional view of a vibration damping device according to a first embodiment of the present invention. [Figure 5] 1 is a diagram of a damping component according to a first embodiment of the present invention; [Figure 6] FIG. 2 is a schematic diagram of a pediatric carrier according to a second embodiment of the present invention. [Figure 7] FIG. 2 is a partial view of a child carrier according to a second embodiment of the present invention. [Figure 8] FIG. 4 is a cross-sectional view of a vibration damping device according to a second embodiment of the present invention. [Figure 9] FIG. 10 is a partial view of a pediatric carrier according to a third embodiment of the present invention. [Figure 10] FIG. 10 is a partial cross-sectional view of a child carrier according to a third embodiment of the present invention. [Figure 11] FIG. 10 is a partial view of a pediatric carrier according to a third embodiment of the present invention. [Figure 12] FIG. 10 is a partial view of a pediatric carrier according to a third embodiment of the present invention. [Figure 13] FIG. 10 is a partial view of a pediatric carrier according to a third embodiment of the present invention. [Figure 14] FIG. 10 is a partial view of a pediatric carrier according to a third embodiment of the present invention. [Figure 15] 10 is another partial cross-sectional view of a pediatric carrier according to a third embodiment of the present invention. [Figure 16] FIG. 10 is a view of a fixing part according to a third embodiment of the present invention. [Figure 17] FIG. 10 is a diagram of a wheelbase body according to a third embodiment of the present invention. [Figure 18] FIG. 10 is a partial view of a child carrier according to a fourth embodiment of the present invention. [Figure 19] FIG. 10 is a partially enlarged view of a child carrier according to a fourth embodiment of the present invention. [Figure 20] FIG. 10 is a partial cross-sectional view of a vibration damping device according to a fourth embodiment of the present invention. [Figure 21] FIG. 10 is an exploded view of a vibration damping device according to a fourth embodiment of the present invention. [Figure 22] FIG. 10 is a diagram of an attenuation block according to a fourth embodiment of the present invention. [Figure 23] FIG. 10 is a partial view of a child carrier according to a fifth embodiment of the present invention. [Figure 24]24 is an enlarged view of section A of the pediatric carrier shown in FIG. 23 according to a fifth embodiment of the present invention. [Figure 25] FIG. 10 is an exploded view of a vibration damping device according to a fifth embodiment of the present invention. [Figure 26] FIG. 10 is a partial cross-sectional view of a child carrier according to a fifth embodiment of the present invention. [Figure 27] 27 is an enlarged view of section B of the pediatric carrier shown in FIG. 26 according to a fifth embodiment of the present invention. [Figure 28] FIG. 10 is a partial view of a pediatric carrier according to a sixth embodiment of the present invention. [Figure 29] FIG. 10 is an enlarged view of part C of a child carrier according to a sixth embodiment of the present invention. [Figure 30] FIG. 10 is a diagram of a covering component according to a sixth embodiment of the present invention. [Figure 31] FIG. 10 is a partial view of a child carrier according to a seventh embodiment of the present invention. [Figure 32] FIG. 10 is a partially enlarged view of a child carrier according to a seventh embodiment of the present invention. [Figure 33] FIG. 10 is another enlarged partial view of a pediatric carrier according to the seventh embodiment of the present invention. [Figure 34] FIG. 10 is a partially exploded view of a pediatric carrier according to a seventh embodiment of the present invention. [Figure 35] FIG. 10 is a partial cross-sectional view of a child carrier according to a seventh embodiment of the present invention. [Figure 36] FIG. 10 is a schematic diagram of a pediatric carrier according to an eighth embodiment of the present invention. [Figure 37] FIG. 13 is a partial view of a child carrier according to an eighth embodiment of the present invention. [Figure 38] FIG. 13 is a partially exploded view of a pediatric carrier according to an eighth embodiment of the present invention. [Figure 39] FIG. 13 is a partial internal structural view of a child carrier according to an eighth embodiment of the present invention. [Figure 40] FIG. 13 is another partial internal structural view of the pediatric carrier according to the eighth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0043] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings, which form a part hereof, and which show, by way of illustration, specific embodiments in which the invention may be practiced. In this regard, directional terms such as "top," "bottom," "front," and "back" are used with reference to the orientation of the figures being described. Components of the present invention can be positioned in many different orientations. As such, the directional terms are used for purposes of illustration and are in no way limiting. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not as limiting. Also, the term "connect" is intended to mean either an indirect or direct mechanical connection. Thus, when a first device is connected to a second device, this connection may be via a direct mechanical connection or via an indirect mechanical connection via other devices and connections.

[0044] Reference is made to FIGS. 1 to 5. FIG. 1 is a schematic diagram of a child carrier 100A according to a first embodiment of the present invention. FIG. 2 is a partial view of the child carrier 100A according to the first embodiment of the present invention. FIG. 3 is an exploded view of a vibration damping device 200A according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view of the vibration damping device 200A according to the first embodiment of the present invention. FIG. 5 is a view of a damping component 241A according to the first embodiment of the present invention. As shown in FIGS. 1 to 5, the child carrier 100A may be a stroller. However, the present invention is not limited thereto. For example, in another embodiment, the child carrier may be a child crib, a child basket, or a child bassinet. The child carrier 100A includes a frame 101A, four wheels 102A, and two vibration damping devices 200A. The front legs of the frame 101A are connected to two of the four wheels 102A, and the rear legs of the frame 101A are connected to the other two of the four wheels 102A. Each of the two vibration damping devices 200A is disposed between the front leg of the frame 101A and the corresponding wheel 102A. However, the number and configuration of the wheels and vibration damping devices are not limited to this embodiment and depend on practical requirements. For example, in another embodiment, the child carrier may include only one vibration damping device disposed between the rear leg of the frame and the corresponding wheel.

[0045] As shown in FIGS. 2 to 4, each of the two vibration damping devices 200A includes a connection base 210A, a wheel base 220A, a spindle element 230A, and a suppression mechanism 240A. The connection base 210A is connected to the frame 101A. The wheel base 220A is connected to a corresponding wheel 102A. The wheel base 220A is rotatably connected to the connection base 210A by the spindle element 230A. The suppression mechanism 240A is for suppressing shimmy movement of the wheel base 220A relative to the connection base 210A.

[0046] Specifically, a lower end of the spindle component 230A is fixedly connected to the wheel base 220A, and an upper end of the spindle component 230A is rotatably connected to the connection base 210A. The suppression mechanism 240A includes a damping component 241A and a bearing 242A. The bearing 242A is disposed in the connection base 210A, such that the spindle component 230A is rotatably connected to the connection base 210A by the bearing 242A. An introduction hole 211A is disposed inside the connection base 210A. The damping component 241A is fixed inside the introduction hole 211A. A through hole 2411A is disposed in the damping component 241A. The spindle component 230A passes through the through hole 2411A and is tightly fitted into the damping component 241A. To dampen the oscillatory motion of the wheel base 220A relative to the connection base 210A, the damping component 241A may dampen the motion of the spindle component 230A.

[0047] More specifically, a recess 231A is disposed in the spindle component 230A. A protrusion 2412A protrudes from the damping component 241A. The recess 231A is positioned on an outer wall of the spindle component 230A. The protrusion 2412A is positioned on an inner wall of a through-hole 2411A of the damping component 241A. In order to suppress the vibrational movement of the wheel base 220A relative to the connection base 210A along the horizontal direction and the vibrational movement of the wheel base 220A relative to the connection base 210A along the vertical direction, when the spindle component 230A passes through the through-hole 2411A, the protrusion 2412A fits tightly into the recess 231A, thereby suppressing the rotation of the spindle component 230A along the horizontal direction and the vibration of the spindle component 230A along the vertical direction.

[0048] Furthermore, in this embodiment, the recess 231A may be a trapezoidal recess and the protrusion 2412A may be a trapezoidal protrusion, allowing a tight fit between the protrusion 2412A and the recess 231A and more effectively suppressing movement of the spindle component 230A along the horizontal and vertical directions.

[0049] Besides, the suppression mechanism 240A further includes two fixing components 243A configured to fixedly connect the damping component 241A with the connection base 210A. In this embodiment, the fixing components 243A can be screws.

[0050] 4 and 5, the damping component 241A includes a main body 2413A and a neck portion 2414A disposed at the end of the main body 2413A. Two protruding shoulders 2415A protrude from the outside of the neck portion 2414A. Connecting portions 2416A, each having a concave structure, are disposed between the two protruding shoulders 2415A and the main body 2413A. To ensure structural stability and prevent the damping component 241A from being moved by the spindle component 230A, two fixed components 243A penetrate the connecting base 210A to be inserted into the two connecting portions 2416A, respectively, and fixedly connect the damping component 241A to the connecting base 210A.

[0051] However, the present invention is not limited to this embodiment. The number of fixing components, protruding shoulders, and connecting portions depends on practical requirements. For example, in another embodiment, the suppression mechanism may include only one fixing component, and only one protruding shoulder and one connecting portion may be present on the damping component.

[0052] In this embodiment, to suppress the oscillatory motion of the wheel base 220A relative to the connection base 210A along the horizontal and vertical directions, the vibration damping device 200A utilizes a tight fit between the protrusion 2412A protruding from the damping component 241A and the recess 231A of the spindle component 230A to suppress the motion of the spindle component 230A along the horizontal and vertical directions. Thus, the child carrier 100A is prevented from bouncing or swaying when traveling over uneven roads, improving the safety and comfort of riding the child carrier 100A.

[0053] Please refer to FIGS. 6 to 8. FIG. 6 is a schematic diagram of a child carrier 100B according to a second embodiment of the present invention. FIG. 7 is a partial view of the child carrier 100B according to the second embodiment of the present invention. FIG. 8 is a cross-sectional view of a vibration damping device 200B according to the second embodiment of the present invention. As shown in FIGS. 6 to 8, the child carrier 100B includes a frame 101B, four wheels 102B, and two vibration damping devices 200B. The front legs of the frame 101B are connected to two of the four wheels 102B, and the rear legs of the frame 101B are connected to the other two of the four wheels 102B. Each of the two vibration damping devices 200B is disposed between the front leg of the frame 101B and the corresponding wheel 102B, and includes a connection base 210B, a wheel base 220B, a spindle element 230B, and a suppression mechanism 240B. The connection base 210B is connected to the frame 101B. The wheel base 220B is connected to the corresponding wheel 102B. The lower end of the spindle component 230B is rotatably connected to the wheel base 220B, and the upper end of the spindle component 230B is fixedly connected to the connection base 210B. A positioning hole 221B is disposed inside the wheel base 220B. The restraining mechanism 240B includes an elastic component 241B and a pressing component 242B. The pressing component 242B is movably disposed inside the positioning mechanism 240B and adjacent to the lower end of the spindle component 230B. The elastic component 241B is connected to the pressing component 242B to cause the pressing component 242B to press the spindle component 230B along the axial direction of the spindle component 230B and to impart an elastic force to the pressing component 242B along the axial direction of the spindle component 230B so as to suppress the vibration of the spindle component 230B along the vertical direction in order to suppress the vibration movement of the wheel base 220B relative to the connection base 210B along the vertical direction.

[0054] Furthermore, in this embodiment, the elastic component 241B may be a compression spring. One side of the pressing component 242B adjacent to the spindle component 230B may be a flat structure, and the other side of the pressing component 242B adjacent to the elastic component 241B may be a socket structure to cover the upper end of the elastic component 241B so as to firmly position the upper end of the elastic component 241B. The restraining mechanism 240B may further include a positioning post 243B fixedly disposed on the wheel base 220B. The lower end of the elastic component 241B is sleeved on the positioning post 243B, so that the lower end of the elastic component 241B is firmly positioned. The above-mentioned configuration prevents the elastic component 241B from deflecting and ensures structural stability.

[0055] However, the present invention is not limited to this embodiment. Any structure capable of positioning the elastic component is included within the scope of the present invention. For example, in another embodiment, the positions of the socket structure and the positioning post may be interchanged, i.e., the socket structure may be disposed on the wheel base, and the positioning post may be disposed on one side of the pressing component adjacent to the elastic component. Alternatively, in another embodiment, the restraining mechanism may include two positioning posts or two socket structures disposed on the wheel base and the pressing component. Alternatively, in another embodiment, the positioning post and socket structure may be omitted.

[0056] 8, the suppression mechanism 240B further includes an engagement component 244B. A slot 2441B is disposed in the engagement component 244B. The spindle component 230B passes through the slot 2441B. The engagement component 244B is movable relative to the spindle component 230B along the lateral direction of the spindle component 230B through cooperation of the slot 2441B and the spindle component 230B to press the spindle component 230B along the lateral direction of the spindle component 230B so as to suppress vibrational movement of the wheel base 220B relative to the connection base 210B along the horizontal direction and to suppress rotation of the spindle component 230B along the horizontal direction.

[0057] In this embodiment, a recess 231B is disposed on the spindle component 230B. A protrusion 2442B protrudes from the engagement component 244B. When the engagement component 244B presses the spindle component 230B along the lateral direction of the spindle component 230B, the protrusion 2442B engages with the recess 231B along the lateral direction of the spindle component 230B. The above configuration can not only suppress rotation of the spindle component 230B along the horizontal direction, but also achieve quick detachment of the wheel base 220B and the connection base 210B. In other words, a user can operate the engagement component 244B to disengage the protrusion 2442B from the recess 231B to allow the wheel base 220B and the connection base 210B to be separated from each other.

[0058] Furthermore, the suppression mechanism 240B further includes a return component 245B disposed between the wheel base 220B and the engagement component 244B to cause the engagement component 244B to press the spindle component 230B along the lateral direction of the spindle component 230B, i.e., the engagement component 244B is biased by the return component 245B to press the spindle component 230B along the lateral direction.

[0059] In this embodiment, to suppress the oscillatory motion of the wheel base 220B relative to the connection base 210B along the vertical and horizontal directions, the vibration damping device 200B utilizes a pressing component 242B and an engaging component 244B to suppress the vibration of the spindle component 230B along the vertical direction and the rotation of the spindle component 230B along the horizontal direction, respectively. Thus, the child carrier 100B is prevented from bouncing or swaying when traveling over uneven roads, improving the safety and comfort of riding in the child carrier 100B.

[0060] Please refer to FIGS. 9 to 17. FIG. 9 is a partial view of a child carrier 100C according to a third embodiment of the present invention. FIG. 10 is a partial cross-sectional view of a child carrier 100C according to the third embodiment of the present invention. FIGS. 11 to 14 are various partial views of a child carrier 100C according to the third embodiment of the present invention. FIG. 15 is another partial cross-sectional view of a child carrier 100C according to the third embodiment of the present invention. FIG. 16 is a view of a fixing portion 244C according to the third embodiment of the present invention. FIG. 17 is a view of a wheel base body 221C according to the third embodiment of the present invention. As shown in FIGS. 9 to 17, the child carrier 100C includes a frame 101C, at least one wheel 102C, and at least one vibration damping device 200C. The vibration damping device 200C is disposed between the frame 101C and the corresponding wheel 102C and includes a connection base 210C, a wheel base 220C, a spindle element 230C, and a suppression mechanism 240C. The connection base 210C is connected to the frame 101C. The wheel base 220C is connected to a corresponding wheel 102C. The lower end of the spindle component 230C is rotatably connected to the wheel base 220C, and the upper end of the spindle component 230C is fixedly connected to the connection base 210C.

[0061] 9, 13, 14, and 17, a slot 2201C is disposed at the lower end of the wheel base 220C and is arranged in an inclined manner. A wheel shaft 1021C of the wheel 102C passes through the slot 2201C and is slidable within the slot 2201C. When a vertical external force is applied to the wheel 102C, the wheel 102C can move relative to the wheel base 220C through cooperation of the wheel shaft 1021C and the slot 2201C to prevent the wheel 102C from vibrating relative to the connection base 210C along the vertical direction.

[0062] As shown in Figures 9, 10, 13, 14, and 17, the wheel base 220C includes a wheel base body 221C and a positioning base 222C. An accommodation recess is provided at the upper end of the wheel base body 221C to accommodate the positioning base 222C. The positioning base 222C is detachably connected to the wheel base body 221C. In this embodiment, the wheel base body 221C and the positioning base 222C may be connected to each other by two fastening elements 223C, which may be screws. A spindle element 230C fixedly passes through the positioning base 222C. The suppression mechanism 240C includes a pressing element 241C. The pressing element 241C includes two positioning protrusions 2411C fixedly disposed on the wheel base body 221C. The lower end of the spindle component 230C protrudes from the positioning base 222C and is clamped by two positioning protrusions 2411C. In order to suppress the vibration movement of the wheel base 220C relative to the connection base 210C along the vertical direction, the two positioning protrusions 2411C can press the spindle component 230C along the axial direction of the spindle component 230C to suppress the vibration of the spindle component 230C along the vertical direction.

[0063] In this embodiment, the two positioning protrusions 2411C and the wheel base body 221C may be integrally formed with each other. A guide surface 2412C may be disposed on each of the two positioning protrusions 2411C. A coupling head 231C having a semi-spherical structure may be disposed on the lower end of the spindle component 230C. The coupling head 231C may be guided by the two guide surfaces 2412C and inserted between the two positioning protrusions 2411C in a tight-fitting manner, ensuring structural stability.

[0064] 11 to 16, the suppression mechanism 240 further includes a first gear 2431C and a second gear 2432C. The first gear 2431C is sleeved on the spindle element 230C. The second gear 2432C is rotatably disposed on the positioning base 222C and rotatably engaged with the first gear 2431C. When a horizontal external force is applied to the wheel 102C, rotation of the spindle element 230C is suppressed by the rotational engagement between the first gear 2431C and the second gear 2432C, thereby suppressing vibrational motion of the wheel base 220C relative to the connection base 210C along the horizontal direction.

[0065] In this embodiment, the root diameter of the first gear 2431C may be larger than the root diameter of the second gear 2432C to better achieve the effect of suppressing rotation of the spindle component 230C along the horizontal direction. However, the present invention is not limited to this embodiment. In another embodiment, the root diameter of the first gear may be the same as or smaller than the root diameter of the second gear.

[0066] 10 to 12 and 16, the suppression mechanism 240C further includes a fixed portion 244C fixedly disposed on the connection base 210C and sleeved on the spindle component 230C. A first gear 2431C is disposed at a lower end of the fixed portion 244C. In this embodiment, the fixed portion 244C and the first gear 2431C may be integrally formed with each other. An accommodating chamber 245C is disposed inside the fixed portion 244C for insertion of the spindle component 230C. An upper end of the fixed portion 244C is fixed to the connection base 210C. The fixed portion 244C is intended to provide support for the internal structure of the connection base 210C to improve structural stability. In this embodiment, a flat guide portion 2441C may be disposed at the upper end of the fixed portion 244C, and a first guide hole 2442C may be disposed in the guide portion 2441C. Furthermore, a flat portion 232C may be disposed on an upper end of the spindle component 230C, and a second guide hole 233C may be disposed on the flat portion 232C and positioned at a position corresponding to the first guide hole 2442C. The above-described configuration enables the spindle component 230C and the fixing portion 244C to be fixed to the connection base 210C by a positioning pin that passes through the first guide hole 2442C and the second guide hole 233C.

[0067] As can be appreciated, to achieve rotation of the second gear 2432C, an introduction hole can be disposed in the positioning base 222C for insertion of the shaft of the second gear 2432C. Additionally, in another embodiment, the pivot shaft can protrude from the positioning base to allow the second gear to be sleeved onto the pivot shaft.

[0068] However, the present invention is not limited to this embodiment. The restraining mechanism may also utilize at least two other rotating bodies, instead of gears, to restrain the rotation of the spindle component along the horizontal direction. For example, in another embodiment, the restraining mechanism may include a cam sleeved on the spindle component and a plurality of rotating disks rotatably engaged with the cam, and when the wheel is subjected to a horizontal external force, the cam may rotate the plurality of rotating disks to restrain the rotation of the spindle component along the horizontal direction.

[0069] 11 and 14, the vibration damping device 200C further includes a support base 250C disposed between the connection base 210C and the positioning base 222C. An engagement protrusion 2221C protrudes from the positioning base 222C. A protective cover 251C is disposed on the support base 250C. A second gear 2432C is positioned between the positioning base 222C and the protective cover 251C. An engagement slot 2511C is disposed in the protective cover 251C to engage with the engagement protrusion 2221C, and an opening 2512C is disposed in the protective cover 251C to allow the spindle component 230C and the first gear 2431C to pass through.

[0070] In this embodiment, the vibration damping device 200C utilizes the pressing element 241C and the rotational engagement between the first gear 2431C and the second gear 2432C to suppress vibration of the spindle element 230C along the vertical direction and rotation of the spindle element 230C along the horizontal direction, respectively, to suppress oscillatory motion of the wheel base 220C relative to the connection base 210C along the vertical direction. Additionally, the vibration damping device 200C further utilizes cooperation between the wheel shaft 1021C and the slot 2201C to prevent the wheel 102C from vibrating the wheel base 220C relative to the connection base 210C along the vertical direction. Therefore, the child carrier 100C is prevented from bouncing or swaying when traveling over uneven roads, improving the safety and comfort of riding the child carrier 100C.

[0071] Please refer to FIGS. 18 to 22. FIG. 18 is a partial view of a child carrier 100D according to a fourth embodiment of the present invention. FIG. 19 is a partially enlarged view of a child carrier 100D according to the fourth embodiment of the present invention. FIG. 20 is a partial cross-sectional view of a vibration damping device 200D according to the fourth embodiment of the present invention. FIG. 21 is an exploded view of a vibration damping device 200D according to the fourth embodiment of the present invention. FIG. 22 is a view of a damping block 244D according to the fourth embodiment of the present invention. As shown in FIGS. 18 to 22, the child carrier 100D includes a frame 101D, at least one wheel 102D, and at least one vibration damping device 200D. The vibration damping device 200D is disposed between the frame 101D and the corresponding wheel 102D. The vibration damping device 200D includes a connection base 210D, a wheel base 220D, a spindle element 230D, and a suppression mechanism 240D. The connection base 210D is connected to the frame 101D. The wheel base 220D is connected to a corresponding wheel 102D. A lower end of the spindle component 230D is rotatably connected to the wheel base 220D. An upper end of the spindle component 230D is fixedly connected to the connection base 210D. A suppression mechanism 240D is disposed between the spindle component 230D and the wheel base 220D to suppress vibrational movement of the wheel base 220D relative to the connection base 210D.

[0072] Specifically, as shown in FIGS. 20 to 22, the wheel base 220D includes a first accommodation chamber 2201D and a through hole 2202D. The first accommodation chamber 2201D is for accommodating the spindle component 230D and the suppression mechanism 240D. The through hole 2202D is in communication with the first accommodation chamber 2201D and allows the spindle component 230D to pass through. The spindle component 230D passes through the through hole 2202D and is disposed vertically between the wheel base 220D and the connection base 210D. The suppression mechanism 240D includes a bearing 241D and a mounting component 242D. The bearing 241D is disposed inside the first accommodation chamber 2201D and positioned below the through hole 2202D. To achieve a rotatable connection between the spindle component 230D and the wheel base 220D, the spindle component 230D passes through a bearing 241D. The mounting component 242D is located adjacent to the lower end of the spindle component 230D and serves to position the spindle component 230D inside the first accommodating chamber 2201D. The mounting component 242D is fixed to the inside of the first accommodating chamber 2201D by at least one fastening component 243D.

[0073] Additionally, the suppression mechanism 240D further includes a damping block 244D and a return component 245D. The damping block 244D is disposed inside the first accommodating chamber 2201D and positioned near the lower end of the spindle component 230D. The damping block 244D is movable relative to the spindle component 230D along the lateral direction of the spindle component 230D to press the spindle component 230D along the lateral direction of the spindle component 230D so as to suppress vibration motion of the wheel base 220D relative to the connection base 210D along the horizontal direction and rotation of the spindle component 230D along the horizontal direction. The return component 245D is disposed inside the first accommodating chamber 2201D and positioned between the wheel base 2201D and the damping block 244D to cause the damping block 244D to press the spindle component 230D along the lateral direction of the spindle component 230D.

[0074] Specifically, the damping block 244D may be made of rubber or plastic material. The return component may be a spring. The suppression mechanism 240D may further include a positioning post 246D fixedly disposed on the damping block 244D. The return component 245D is sleeved on the positioning post 246D. However, the present invention is not limited to this embodiment. It depends on practical requirements. For example, the positioning post may be disposed on the wheel base. Alternatively, in another embodiment, the suppression mechanism may include two positioning posts fixedly disposed on the damping block and the wheel base, respectively. Alternatively, in another embodiment, the positioning post may be omitted.

[0075] In this embodiment, a recess 231D is disposed in the spindle component 230D. A protrusion 2441D protrudes from the damping block 244D. When the damping block 244D presses the spindle component 230D along the lateral direction of the spindle component 230D, the protrusion 2441D engages with the recess 231D along the lateral direction of the spindle component 230D. Specifically, the recess 231D may be a circular recess. A surface of the damping block 244D adjacent to the spindle component 230D may be an arcuate surface. The protrusion 2441D may be disposed on the arcuate surface.

[0076] The vibration damping device 200D further includes a buffer element 250D inserted between the wheel 102D and the wheel base 220D. The buffer element 250D and the spindle element 230D are arranged in parallel. Specifically, the wheel base 220D further includes a second receiving chamber 2203D and two slots 2204D communicating with the second receiving chamber 2203D and allowing the wheel shaft of the wheel 102D to pass through. The vibration damping device 200D further includes a support block 260D. The buffer element 250D and the support block 260D are disposed inside the second receiving chamber 2203D. The support block 260D is positioned on the wheel shaft of the wheel 102D. In order to prevent the wheel 102D from moving the wheel base 220D along the vertical direction and to suppress the vibration movement of the wheel base 220D relative to the connection base 210D along the vertical direction, the cushioning component 250D is disposed between the support block 260D and the top wall of the second accommodating chamber 2203D. However, the present invention is not limited to this embodiment. For example, in another embodiment, a support may extend from the bottom of the second accommodating chamber, and the support may abut against the end of the cushioning component and be connected to the wheel shaft of the wheel.

[0077] Additionally, the vibration damping device 200D further includes a first connection component 270D and a second connection component 280D. The first connection component 270D is pivotally connected to the second connection component 280D. The second connection component 280D is pivotally connected to the wheel base 220D by the wheel shaft of the wheel 102D. Specifically, the second connection component 280D includes an accommodation chamber 281D for accommodating the outer surface 2205D of the second accommodation chamber 2203D of the wheel base 220D.

[0078] In this embodiment, to suppress the oscillatory motion of the wheel base 220D relative to the connection base 210D along the horizontal direction, the vibration damping device 200D utilizes a damping block 244D to suppress rotation of the spindle component 230D along the horizontal direction. Additionally, the vibration damping device 200D further utilizes a cushioning component 250D to prevent the wheel 102D from vibrating the wheel base 220D relative to the connection base 210D along the vertical direction. Therefore, the child carrier 100D is prevented from bouncing or swaying when traveling over uneven roads, improving the safety and comfort of riding in the child carrier 100D.

[0079] Please refer to Figures 23 to 27. Figure 23 is a partial view of a child carrier 100E according to a fifth embodiment of the present invention. Figure 24 is an enlarged view of section A of child carrier 100E shown in Figure 23 according to the fifth embodiment of the present invention. Figure 25 is an exploded view of a vibration damping device 200E according to the fifth embodiment of the present invention. Figure 26 is a partial cross-sectional view of child carrier 100E according to the fifth embodiment of the present invention. Figure 27 is an enlarged view of section B of child carrier 100E shown in Figure 26 according to the fifth embodiment of the present invention. As shown in Figures 23 to 27, child carrier 100E includes a frame 101E, at least one wheel 102E, and at least one vibration damping device 200E. The vibration damping device 200E is disposed between the frame 101E and the corresponding wheel 102E. The vibration damping device 200E includes a connection base 210E, a wheel base 220E, a spindle element 230E, and a suppression mechanism 240E. The connection base 210E is connected to the frame 101E. The wheel base 220E is connected to a corresponding wheel 102E. The lower end of the spindle component 230E is rotatably connected to the wheel base 220E. The upper end of the spindle component 230E is fixedly connected to the connection base 210E. The suppression mechanism 240E is for suppressing vibrational movement of the wheel base 220E relative to the connection base 210E.

[0080] Specifically, as shown in FIGS. 25 and 27, the suppression mechanism 240E includes a rotating sleeve 241E and a damping plate 242E. The rotating sleeve 241E is fixedly disposed on the wheel base 220E. To achieve a rotatable connection between the spindle component 230E and the wheel base 220E, the spindle component 230E passes through the rotating sleeve 241E and is rotatable relative to the rotating sleeve 241E. To suppress vibration of the spindle component 230E along the vertical direction and suppress vibratory movement of the wheel base 220E relative to the connection base 210E along the vertical direction, the damping plate 242E may be disposed on the spindle component 230E and press the rotating sleeve 241E along the axial direction of the spindle component 230E.

[0081] In this embodiment, the spindle component 230E includes a suppressing portion 231E and an extending portion 232E. The rotating sleeve 241E includes a through hole for insertion of the extending portion 232E. The suppressing portion 231E is for suppressing the insertion length of the extending portion 232E into the through hole. The damping plate 242E is positioned between the suppressing portion 231E and the rotating sleeve 241E. The extending portion 232E passes through the through hole and is connected to the connection base 210E. In addition, the rotating sleeve 241E further includes an abutting portion 2411E and a rotating portion 2412E. The wheel base 220E includes an introduction hole 221E for allowing insertion of the extending portion 232E and the rotating portion 2412E. The rotating portion 2412E is positioned between the extending portion 232E and the wheel base 220E. The abutment portion 2411E and the suppression portion 231E are exposed to the outside of the introduction hole 221E. The damping plate 242E is positioned between the abutment portion 2411E and the suppression portion 231E. The abutment portion 2411E can abut against the wheel base 220E along the vertical direction, and the damping plate 242E can abut against the abutment portion 2411E along the vertical direction. Therefore, vibration motion of the wheel base 220E relative to the connection base 210E along the vertical direction can be effectively suppressed.

[0082] In this embodiment, the spindle component 230E may be a hollow pipe to reduce weight. Furthermore, the rotating sleeve 241E may be made of a plastic material so that the rotating sleeve 241E may be elastically deformed, and the abutting portion 2411E and the rotating portion 2412E may be integrally formed with each other.

[0083] 25 and 26, the suppression mechanism 240E further includes a blocking plate 243E. The blocking plate 243E is positioned on the rotating sleeve 241E. The spindle component 230E passes through the blocking plate 243E. The blocking plate 243E is positioned between the rotating sleeve 241E and the connection base 210E and between the wheel base 220E and the connection base 210E to suppress vibrational movement of the wheel base 220E relative to the connection base 210E along the horizontal direction.

[0084] In addition, the vibration damping device 200E further includes a brake component 250E and a shock absorbing portion 260E. The brake component 250E can be operated to abut against the wheel 102E to reduce the rotational speed of the wheel 102E. The shock absorbing portion 260E is positioned below the brake component 250E and is elastic to prevent the wheel 102E from vibrating the wheel base 220E relative to the connection base 210E along the vertical direction. In this embodiment, the shock absorbing portion 260E can be made of a plastic material, and at least one buffer portion 261E having an elliptical structure can be disposed 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 embodiment. For example, in another embodiment, the buffer portion can have a circular structure or a quadrilateral structure.

[0085] In this embodiment, the vibration damping device 200E utilizes a damping plate 242E and a blocking plate 243E to suppress the vibrational motion of the wheel base 220E relative to the connection base 210E along the vertical and horizontal directions, respectively. In addition, the vibration damping device 200E further utilizes a shock absorbing portion 260E to prevent the wheel 102E from vibrating the wheel base 220E relative to the connection base 210E along the vertical direction. Therefore, the child carrier 100E is prevented from bouncing or swaying when traveling over uneven roads, improving the safety and comfort of riding the child carrier 100E.

[0086] Please refer to Figures 28 to 30. Figure 28 is a partial view of a child carrier 100F according to a sixth embodiment of the present invention. Figure 29 is an enlarged view of section C of a child carrier 100F according to the sixth embodiment of the present invention. Figure 30 is a view of a covering element 241F according to the sixth embodiment of the present invention. As shown in Figures 28 to 30, a child carrier 100F includes a frame, at least one wheel 102F, and at least one vibration damping device 200F. The vibration damping device 200F is disposed between the frame and the corresponding wheel 102F. The vibration damping device 200F includes a connection base 210F, a wheel base 220F, a spindle element 230F, and a suppression mechanism 240F. The connection base 210F is connected to the frame. The wheel base 220F is connected to the corresponding wheel 102F. A lower end of the spindle element 230F is fixedly connected to the wheel base 220F. The upper end of the spindle component 230F is rotatably connected to the connection base 210F. The damping mechanism 240F is for damping the vibrational movement of the wheel base 220F relative to the connection base 210F.

[0087] 30, the suppression mechanism 240F includes a covering component 241F fixedly disposed on the connection base 210F and sleeved on the spindle component 230F. At least one notch 2411F is disposed on a wall of the covering component 241F. The inner diameter of the covering component 241F is smaller than the outer diameter of the spindle component 230F. Therefore, to suppress the vibration movement of the wheel base 220F relative to the connection base 210F along the horizontal direction, when the covering component 241F is sleeved on the spindle component 230F, the covering component 241F can be elastically expanded by the spindle component 230F to clamp the spindle component 230F and suppress rotation of the spindle component 230F along the horizontal direction.

[0088] In addition, as shown in FIG. 29, the vibration damping device 200F further includes a buffer component 250F disposed between the wheel base 220F and the connection base 210F to prevent the wheel base 220F from vibrating the connection base 210F along the vertical direction.

[0089] In this embodiment, to suppress the vibration motion of the wheel base 220F relative to the connection base 210F along the horizontal direction, the vibration damping device 200F utilizes a covering component 241F to suppress the rotation of the spindle component 230F along the horizontal direction. Additionally, the vibration damping device 200F further utilizes a cushioning component 250F to prevent the wheel base 220F from vibrating the connection base 210F along the vertical direction. Therefore, the child carrier 100F is prevented from bouncing or swaying when traveling over uneven roads, improving the safety and comfort of riding the child carrier 100F.

[0090] Please refer to Figures 31 to 35. Figure 31 is a partial view of a child carrier 100G according to a seventh embodiment of the present invention. Figure 32 is a partial enlarged view of a child carrier 100G according to the seventh embodiment of the present invention. Figure 33 is another partial enlarged view of a child carrier 100G according to the seventh embodiment of the present invention. Figure 34 is a partial exploded view of a child carrier 100G according to the seventh embodiment of the present invention. Figure 35 is a partial cross-sectional view of a child carrier 100G according to the seventh embodiment of the present invention. As shown in Figures 31 to 35, a child carrier 100G includes a frame 101G, at least one wheel 102G, and at least one vibration damping device 200G. The vibration damping device 200G is disposed between the frame 101G and the corresponding wheel 102G. The vibration damping device 200G includes a connection base 210G, a wheel base 220G, a spindle element 230G, and a suppression mechanism 240G. The connection base 210G is connected to the frame 101G. The wheel base 220G is connected to a corresponding wheel 102G. The lower end of the spindle component 230G is fixedly connected to the wheel base 220G. The upper end of the spindle component 230G is rotatably connected to the connection base 210G. The damping mechanism 240G is for damping vibrational movement of the wheel base 220G relative to the connection base 210G.

[0091] Specifically, the suppression mechanism 240G includes two bearings 241G. The two bearings 241G are fixedly disposed on the connection base 210G. The spindle component 230G passes through the two bearings 241G to achieve a rotatable connection between the spindle component 230G and the connection base 210G. The suppression mechanism 240G further includes a shaft sleeve 242G and an elastic component 243G. The shaft sleeve 242G is movably disposed on the connection base 210G and sleeved on the spindle component 230G. The elastic component 243G is disposed between the connection base 210G and the shaft sleeve 242G to cause the shaft sleeve 242G to press the spindle component 230G along the lateral direction of the spindle component 230G so as to suppress the rotation of the spindle component 230G along the horizontal direction in order to suppress the vibration motion of the wheel base 220G relative to the connection base 210G along the horizontal direction. However, the present invention is not limited to this embodiment. In another embodiment, the restraining mechanism may include only one bearing.

[0092] More specifically, as shown in FIGS. 34 and 35 , the connection base 210G includes a base body 211G, an operating portion 212G, and a positioning component 213G. A shaft sleeve 242G, two bearings 241G, and a spindle component 230G are disposed inside the base body 211G. The shaft sleeve 242G is positioned between the two bearings 241G. The operating portion 212G and the positioning component 213G are movably disposed on the base body 211G and connected to each other. The positioning component 213G penetrates the base body 211G and engages with the spindle component 230G. The operating portion 212G can disengage the positioning component 213G from the spindle component 230G. A positioning post 2421G protrudes from the shaft sleeve 242G. An end of an elastic component 243G is sleeved on the positioning post 2421G. Another positioning post 2121G protrudes from the operating portion 212G. Another end of the resilient element 243G is sleeved onto the positioning post 2121G.

[0093] 32 to 34, the suppression mechanism 240G further includes an abutment element 244G disposed between the connection base 210G and the wheel base 220G. Specifically, the abutment element 244G is disposed on the wheel base 220G and protrudes from the surface 221G of the wheel base 220G. To prevent direct contact between the surface 214G and the surface 221G, the abutment element 244G is intended to abut against the surface 214G of the connection base 210G adjacent to the wheel base 220G. This not only reduces the friction area between the surface 214G and the surface 221G, but also reduces noise caused by the movement of the wheel base 220G relative to the connection base 210G.

[0094] In this embodiment, to suppress the vibration motion of the wheel base 220G relative to the connection base 210G along the horizontal direction, the vibration damping device 200G utilizes a shaft sleeve 242G to suppress the rotation of the spindle element 230G along the horizontal direction. Therefore, the child carrier 100G is prevented from bouncing or shaking when traveling over uneven roads, improving the safety and comfort of riding in the child carrier 100G. Additionally, the vibration damping device 200G further utilizes an abutment element 244G to prevent direct contact between the surface 214G and the surface 221G, which not only reduces the friction area between the surface 214G and the surface 221G but also may reduce noise caused by the motion of the wheel base 220G relative to the connection base 210G.

[0095] Please refer to Figures 36 to 40. Figure 36 is a schematic diagram of a child carrier 100H according to an eighth embodiment of the present invention. Figure 37 is a partial view of a child carrier 100H according to the eighth embodiment of the present invention. Figure 38 is a partial exploded view of a child carrier 100H according to the eighth embodiment of the present invention. Figure 39 is a partial internal structural view of a child carrier 100H according to the eighth embodiment of the present invention. Figure 40 is another partial internal structural view of a child carrier 100H according to the eighth embodiment of the present invention. As shown in Figures 36 to 40, the child carrier 100H includes a frame 101H, at least one wheel 102H, and at least one vibration damping device 200H. The vibration damping device 200H is disposed between the frame 101H and the corresponding wheel 102H. The vibration damping device 200H includes a connection base 210H, a wheel base 220H, a spindle element 230H, and a suppression mechanism 240H. The connection base 210H is connected to the frame 101H. The wheel base 220H is connected to a corresponding wheel 102H. The lower end of the spindle component 230H is fixedly connected to the wheel base 220H. The upper end of the spindle component 230H is rotatably connected to the connection base 210H. The suppression mechanism 240H is for suppressing vibrational movement of the wheel base 220H relative to the connection base 210H.

[0096] Specifically, to achieve a fixed connection between the spindle component 230H and the wheel base 220H, the suppression mechanism 240H includes a fixed base 241H fixedly connected to the wheel base 220H and sleeved on the spindle component 230H. An accommodating hole 211H is disposed in the connection base 210H. To achieve a rotatable connection between the spindle component 230H and the connection base 210H, the fixed base 241H is at least partially disposed inside the accommodating hole 211H and is rotatable relative to the accommodating hole 211H. To suppress vibration movement of the wheel base 220H relative to the connection base 210H along the horizontal direction, the fixed base 241H tightly fits into the accommodating hole 211H and suppresses rotation of the spindle component 230H along the horizontal direction due to frictional force between the fixed base 241H and the wall of the accommodating hole 211H.

[0097] 38 to 40, the fixed base 241H includes a fixed main body 2411H and two elastic abutment portions 2412H disposed on the fixed main body 2411H. Preferably, in this embodiment, the fixed main body 2411H can be fixedly connected to the wheel base 220H by two fastening elements 2413H, which can be screws, and the two elastic abutment portions 2412H can be two elastic arms introduced into the fixed main body 2411H and located opposite each other. When the fixed base 241H is fitted into the accommodating hole 211H, the two elastic abutment portions 2412H abut against the wall portions of the accommodating hole 211H and can be elastically deformed by the wall portions of the accommodating hole 211H. In order to suppress the vibration movement of the wheel base 220H relative to the connection base 210H along the horizontal direction, the friction force between each of the two elastic abutments and the wall of the receiving hole 211H can effectively suppress the rotation of the spindle component 230H along the horizontal direction. However, the present invention is not limited to this embodiment. In another embodiment, the fixed base may include only one elastic abutment, which may be a rubber protrusion.

[0098] In this embodiment, to suppress the vibration motion of the wheel base 220H relative to the connection base 210H along the horizontal direction, the vibration damping device 200H utilizes the frictional force between each of the two elastic abutments and the wall of the receiving hole 211H to suppress the rotation of the spindle component 230H along the horizontal direction. Therefore, the child carrier 100H is prevented from bouncing or shaking when traveling on uneven roads, improving the safety and comfort of riding in the child carrier 100H.

[0099] Additionally, in other embodiments, the pediatric carrier may also include different vibration damping devices of the different embodiments described above. For example, the different vibration damping devices of the different embodiments described above may be disposed between the frame and different wheels.

[0100] In contrast to the prior art, the damping mechanism of the vibration damping device of the present invention can damp the vibration motion of the wheel base connected to the wheel relative to the connection base connected to the frame, thus effectively preventing the child carrier from bouncing and shaking when the child carrier travels over uneven roads, improving the safety and comfort of riding in the child carrier.

[0101] Those skilled in the art will readily appreciate that numerous modifications and variations of the apparatus and method may be made while retaining the teachings of the present invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims. [Additional note 1] A vibration damping device (200A, 200B, 200C, 200D, 200E, 200F, 200G, 200H) adapted for a wheel (102A, 102B, 102C, 102D, 102E, 102F, 102G, 102H) of a child carrier (100A, 100B, 100C, 100D, 100E, 100F, 100G, 100H), a connection base (210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H) connected to a frame (101A, 101B, 101C, 101D, 101E, 101G, 101H) of the child carrier (100A, 100B, 100C, 100D, 100E, 100F, 100G, 100H); a wheel base (220A, 220B, 220C, 220D, 220E, 220F, 220G, 220H) connected to the wheels (102A, 102B, 102C, 102D, 102E, 102F, 102G, 102H) of the child carrier (100A, 100B, 100C, 100D, 100E, 100F, 100G, 100H); a spindle element (230A, 230B, 230C, 230D, 230E, 230F, 230G, 230H) fixedly connected to one of the connection base (210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H) and the wheel base (220A, 220B, 220C, 220D, 220E, 220F, 220G, 220H) and rotatably connected to the other of the connection base (210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H) and the wheel base (220A, 220B, 220C, 220D, 220E, 220F, 220G, 220H); a damping mechanism (240A, 240B, 240C, 240D, 240E, 240F, 240G, 240H) configured to dampen oscillatory motion of the wheel base (220A, 220B, 220C, 220D, 220E, 220F, 220G, 220H) relative to the connection base (210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H); A vibration damping device (200A, 200B, 200C, 200D, 200E, 200F, 200G, 200H) comprising: [Additional note 2] the suppression mechanism (240A) includes a damping element (241A) fixedly connected to the other of the connection base (210A) and the wheel base (220A); a through hole (2411A) is disposed in the damping component (241A); The vibration damping device (200A) according to Supplementary Item 1, wherein the spindle component (230A) passes through the through hole (2411A) and is tightly fitted to the damping component (241A). [Supplementary Item 3] a recess (231A) is disposed in the spindle component (230A); 3. The vibration damping device (200A) according to claim 2, wherein a protrusion (2412A) protrudes from the damping component (241A) and fits tightly into the recess (231A). [Additional note 4] The recess (231A) is a trapezoidal recess, 4. The vibration damping device (200A) according to claim 3, wherein the protrusion (2412A) is a trapezoidal protrusion. [Additional note 5] The vibration control device (200A) described in Appendix 2, wherein the suppression mechanism (240A) further comprises at least one fixed component (243A) configured to fixedly connect the damping component (241A) to the other of the connection base (210A) and the wheel base (220A). [Additional note 6] the suppression mechanism (240A) further includes a bearing (242A) disposed on the other of the connection base (210A) and the wheel base (220A); The vibration damping device (200A) described in appended claim 2, wherein the spindle component (230A) is rotatably connected to the other of the connection base (210A) and the wheel base (220A) by the bearing (242A). [Additional note 7] The vibration damping device (200B, 200C) according to appended claim 1, wherein the suppression mechanism (240B, 240C) comprises a pressing component (242B, 241C) configured to press the spindle component (230B, 230C) along the axial direction of the spindle component (230B, 230C). [Additional note 8] the pressing component (242B) is movably disposed on the other of the connection base (210B) and the wheel base (220B); The vibration damping device (200B) according to appended claim 7, wherein the suppression mechanism (240B) further comprises an elastic component (241B) connected to the pressing component (242B) to cause the pressing component (242B) to press the spindle component (230B). [Additional note 9] The restraining mechanism (240B) further comprises an engagement component (244B); A slot (2441B) is disposed in the engaging component (244B), The spindle component (230B) passes through the slot (2441B), The vibration damping device (200B) described in Appendix 8, wherein the engagement component (244B) is movable relative to the spindle component (230B) along the lateral direction of the spindle component (230B) by cooperation between the long hole (2441B) and the spindle component (230B) to press the spindle component (230B) along the lateral direction of the spindle component (230B). [Additional Note 10] a recess (231B) is disposed in the spindle component (230B); A vibration damping device (200B) according to appended claim 9, wherein a protrusion (2442B) protrudes from the engaging component (244B) and engages with the recess (231B) along the lateral direction of the spindle component (230B) when the engaging component (244B) presses the spindle component (230B) along the lateral direction of the spindle component (230B). [Additional Note 11] the engaging component (244B) is movably disposed on the other of the connection base (210B) and the wheel base (220B); The vibration damping device (200B) described in Appendix 9, wherein the suppression mechanism (240B) further includes a return component (245B) disposed between the engagement component (244B) and the other of the connection base (210B) and the wheel base (220B) to cause the engagement component (244B) to press the spindle component (230B) along the lateral direction of the spindle component (230B). [Additional Note 12] the restraining mechanism (240B) further comprises at least one positioning post (243B) fixedly disposed on at least one of the pressing component (242B) and the other of the connection base (210B) and the wheel base (220B); 9. The vibration damping device (200B) according to claim 8, wherein the elastic element (241B) is sleeved on the at least one positioning post (243B). [Additional Note 13] the pressing component (241C) comprises two protrusions (2411C) fixedly disposed on one of the connection base (210C) and the wheel base (220C); 8. The vibration damping device (200C) according to appended item 7, wherein the end of the spindle component (230C) is clamped by the two protrusions (2411C). [Additional Note 14] The vibration damping device (200C) according to appended item 1 or 13, wherein the suppression mechanism (240C) further includes at least two rotating bodies rotatably engaged with each other. [Additional Note 15] The at least two rotating bodies include a first gear (2431C) and a second gear (2432C), the first gear (2431C) is fixedly disposed on the other of the connection base (210C) and the wheel base (220C) and is sleeved on the spindle component (230C); The vibration damping device (200C) according to appended item 14, wherein the second gear (2432C) is rotatably disposed on the one of the connection base (210C) and the wheel base (220C). [Additional Note 16] The suppression mechanism (240C) further includes a fixing portion (244C), The vibration damping device (200C) described in appended item 15, wherein the fixed portion (244C) is fixedly disposed on the other of the connection base (210C) and the wheel base (220C) and is sleeved on the spindle component (230C). [Additional Note 17] Item 17. The vibration damping device (200C) according to item 16, wherein the first gear (2431C) and the fixed portion (244C) are integrally formed with each other. [Additional Note 18] The vibration damping device (200C) according to appended item 15, wherein a root diameter of the first gear (2431C) is larger than a root diameter of the second gear (2432C). [Additional Note 19] The suppression mechanism (240D) comprises a damping block (244D); The vibration control device (200D) described in Appendix 1, wherein the damping block (244D) is arranged on one side of the spindle component (230D) and is movable relative to the spindle component (230D) along the lateral direction of the spindle component (230D) to press the spindle component (230D) along the lateral direction of the spindle component (230D). [Additional Note 20] a recess (231D) is disposed in the spindle component (230D); A vibration damping device (200D) according to appended claim 19, wherein a protrusion (2441D) protrudes from the damping block (244D) and engages with the recess (231D) along the lateral direction of the spindle component (230D) when the damping block (244D) presses the spindle component (230D) along the lateral direction of the spindle component (230D). [Additional Note 21] the damping block (244D) is movably disposed on the other of the connection base (210D) and the wheel base (220D); The vibration damping device (200D) described in Appendix 19, wherein the suppression mechanism (240D) further includes a return element (245D) arranged between the damping block (244D) and the other of the connection base (210D) and the wheel base (220D) to cause the damping block (244D) to press the spindle element (230D) along the lateral direction of the spindle element (230D). [Additional Note 22] the suppression mechanism (240D) further includes at least one positioning post (246D) fixedly disposed on at least one of the damping block (244D) and the other of the connection base (210D) and the wheel base (220D); Item 22. The vibration damping device (200D) according to claim 21, wherein the return component (245D) is sleeved onto the at least one positioning post (246D). [Additional Note 23] the restraining mechanism (240D) further comprises a mounting element (242D) fixedly disposed on the other of the connection base (210D) and the wheel base (220D); A vibration damping device (200D) as described in Appendix 19, wherein the spindle component (230D) is rotatably connected to the other of the connection base (210D) and the wheel base (220D) by the mounting component (242D). [Additional note 24] the vibration damping device (200D) further comprises a buffer component (250D) disposed between the wheel (102D) and the wheel base (220D); 20. The vibration damping device (200D) according to claim 19, wherein the buffer component (250D) and the spindle component (230D) are arranged in parallel. [Additional note 25] The suppression mechanism (240E) includes a rotating sleeve (241E) and a damping plate (242E), the rotating sleeve (241E) is fixedly disposed on the other of the connection base (210E) and the wheel base (220E); the spindle component (230E) passes through the rotating sleeve (241E) and is rotatable relative to the rotating sleeve (241E); The vibration damping device (200E) according to appended claim 1, wherein the damping plate (242E) is disposed on the spindle component (230E) and presses the rotating sleeve (241E) along the axial direction of the spindle component (230E). [Additional note 26] The suppression mechanism (240E) comprises a damping plate (242E), The vibration damping device (200E) according to appended claim 1, wherein the damping plate (242E) is disposed on the spindle component (230E) and presses the rotating sleeve (241E) along the axial direction of the spindle component (230E). [Additional note 27] The suppression mechanism (240E) further includes a rotating sleeve (241E), the rotating sleeve (241E) is fixedly disposed on the other of the connection base (210E) and the wheel base (220E); The spindle component (230E) comprises a suppression portion (231E) and an extension portion (232E), the rotating sleeve (241E) has a through-hole for inserting the extension portion (232E), The restricting portion (231E) restricts the insertion length of the extending portion (232E) into the through hole, the damping plate (242E) is positioned between the suppression portion (231E) and the rotating sleeve (241E); Item 27. The vibration damping device (200E) according to item 26, wherein the extending portion (232E) passes through the through hole and is connected to the connection base (210E). [Additional note 28] The suppression mechanism (240F) comprises a covering element (241F), The vibration damping device (200F) described in Appendix 1, wherein the covering element (241F) is fixedly arranged on the other of the connection base (210F) and the wheel base (220F) and is sleeved on the spindle element (230F). [Additional note 29] At least one notch (2411F) is arranged in the wall of the covering element (241F), Item 29. The vibration damping device (200F) according to claim 28, wherein the inner diameter of the covering element (241F) is smaller than the outer diameter of the spindle element (230F). [Additional note 30] The restraining mechanism (240G) comprises a shaft sleeve (242G) and an elastic element (243G); the shaft sleeve (242G) is movably disposed on the other of the connection base (210G) and the wheel base (220G) and is sleeved on the spindle component (230G); The vibration damping device (200G) described in Appendix 1, wherein the elastic element (243G) is arranged between the shaft sleeve (242G) and the other of the connection base (210G) and the wheel base (220G) so as to cause the shaft sleeve (242G) to press the spindle element (230G) along the lateral direction of the spindle element (230G). [Additional note 31] The vibration damping device (200G) described in appended claim 30, wherein the suppression mechanism (240G) further comprises at least one bearing (241G) fixedly disposed on the other of the connection base (210G) and the wheel base (220G). [Additional note 32] The vibration damping device (200G) described in appended claim 30, wherein the suppression mechanism (240G) further comprises an abutment element (244G) disposed between the connection base (210G) and the wheel base (220G). [Additional note 33] The suppression mechanism (240H) includes a fixed base (241H), the fixed base (241H) is fixedly disposed on the one of the connection base (210H) and the wheel base (220H) and is sleeved on the spindle component (230H); an accommodating hole (211H) is disposed in the other of the connection base (210H) and the wheel base (220H); Item 1. The vibration damping device (200H) according to item 1, wherein the fixed base (241H) tightly fits into the receiving hole (211H). [Additional note 34] The fixed base (241H) includes a fixed main body (2411H) and at least one elastic abutment portion (2412H), The vibration damping device (200H) described in Appendix 33, wherein the at least one elastic abutment portion (2412H) abuts against a wall portion of the accommodating hole (211H) and is elastically deformed when the fixed base (241H) is tightly fitted into the accommodating hole (211H). [Explanation of symbols]

[0102] 100A…Child carrier 101A...Frame 102A...Wheel 200A...Vibration control device 210A…Connection base 220A…Wheelbase 230A...Spindle components 231A...recess 240A…Suppression mechanism 241A...Attenuation component 2411A...Through hole 2412A…Protrusion 242A...Bearing 243A…Fixed component 100B…Child carrier 101B...frame 102B...Wheel 200B...Vibration control device 210B...Connection base 220B…Wheelbase 230B...Spindle component 231B...recess 240B…Suppression mechanism 241B...Elastic components 242B...Pressing component 243B... Positioning column 244B…Engagement component 2441B…Long hole 2442B…Protrusion 245B...Recovery Components 100C…Child carrier 101C...Frame 102C...Wheels 200C...Vibration control device 210C…Connection base 220C...wheelbase 230C...Spindle components 240C…Suppression mechanism 241C...Pressing components 2431C…First gear 2432C...Second gear 244C…Fixed part 100D…Child carrier 101D...frame 102D...Wheel 200D...Vibration control device 210D…Connection base 220D...wheelbase 230D...Spindle components 231D...recess 240D…Suppression mechanism 242D...Onboard components 244D...Dampening block 2441D…Protrusion 245D...Recovery Components 246D... Positioning column 250D…Buffer component 100E…Child carrier 101E...frame 102E...Wheels 200E...Vibration control device 210E…Connection base 220E…Wheelbase 230E...Spindle components 231E…Suppression part 232E…Extension part 240E…Suppression mechanism 241E...Rotating sleeve 242E...damping plate 100F…Child carrier 102F…Wheel 200F...Vibration control device 210F…Connection base 220F…Wheelbase 230F...Spindle components 240F…Suppression mechanism 241F...Covering components 2411F...Notch 100G…pediatric carrier 101G...frame 102G...Wheel 200G...Vibration control device 210G…Connection Base 220G…Wheelbase 230G...Spindle components 240G…Suppression mechanism 241G...Bearing 242G...Shaft sleeve 243G...Elastic components 244G…Abutment component 100H…Child carrier 101H...Frame 102H...Wheel 200H...Vibration control device 210H…Connection base 211H...accommodation hole 220H...wheelbase 230H...Spindle components 240H…Suppression mechanism 241H…Fixed base 2411H...Fixed main body 2412H…Elastic contact part

Claims

1. A vibration damping device (200G) adapted for a wheel (102G) of a child carrier (100G), a connection base (210G) connected to the frame (101G) of the child carrier (100G); a wheel base (220G) connected to the wheel (102G) of the child carrier (100G); a suppression mechanism (240G) configured to suppress vibrational movement of the wheel base (220G) relative to the connection base (210G), the suppression mechanism (240G) comprising an abutment element (244G) disposed between the connection base (210G) and the wheel base (220G); a spindle element (230G) fixedly connected to one of the connection base (210G) and the wheel base (220G) and rotatably connected to the other of the connection base (210G) and the wheel base (220G); Equipped with The suppression mechanism (240G) further comprises at least one bearing (241G) fixedly disposed on the other of the connection base (210G) and the wheel base (220G), and the spindle component (230G) comprises a vibration damping device (200G) passing through the bearing (241G).

2. 2. The vibration damping device (200G) of claim 1, wherein the abutment component (244G) protrudes from a surface (221G) of the wheel base (220G) and is configured to abut against a surface (214G) of the connection base (210G) adjacent to the wheel base (220G).

3. A vibration damping device (200G) as described in claim 2, wherein the spindle component (230G) is fixedly connected to the wheel base (220G) and rotatably connected to the connection base (210G).

4. the restraining mechanism (240G) further comprises a shaft sleeve (242G) and a resilient element (243G); the shaft sleeve (242G) is movably disposed on the other of the connection base (210G) and the wheel base (220G) and is sleeved on the spindle component (230G); 2. The vibration damping device (200G) of claim 1, wherein the elastic component (243G) is disposed between the shaft sleeve (242G) and the other of the connection base (210G) and the wheel base (220G) to cause the shaft sleeve (242G) to press the spindle component (230G) along a lateral direction of the spindle component (230G).

5. 5. The vibration damping device (200G) of claim 4, wherein the suppression mechanism (240G) further comprises two bearings (241G) fixedly arranged on the other of the wheel base (220G) and the connection base (210G), the spindle component (230G) passing through the bearings (241G), and the shaft sleeve (242G) being positioned between the two bearings (241G).

6. The vibration damping device (200G) of claim 4, wherein the other of the wheel base (220G) and the connection base (210G) includes a base body (211G), an operating portion (212G), and a positioning component (213G), the operating portion (212G) and the positioning component (213G) being movably arranged on the base body (211G) and connected to each other, the positioning component (213G) engaging with the spindle component (230G), so that the operating portion (212G) is capable of disengaging the positioning component (213G) from the spindle component (230G).

7. The vibration damping device (200G) according to claim 6, wherein the elastic component (243G) is disposed between the shaft sleeve (242G) and the operating portion (212G).

8. The vibration damping device (200G) further comprises two positioning pillar portions (2421G, 2121G), one (2421G) of the two positioning pillar portions (2421G, 2121G) protruding from the shaft sleeve (242G), the other (2121G) of the two positioning pillar portions (2421G, 2121G) protruding from the operating portion (212G), and the two ends of the elastic element (243G) are sleeved respectively on the two positioning pillar portions (2421G, 2121G).

9. 8. The vibration damping device (200G) of claim 7, wherein the operating portion (212G) includes two opposite ends and a central portion between the two ends, the elastic component (243G) is disposed between the shaft sleeve (242G) and the central portion, and the positioning component (213G) is connected to one of the two ends of the operating portion (212G).

10. The vibration damping device (200G) of claim 9, wherein the other of the wheel base (220G) and the connection base (210G) further comprises a spring, the spring being located between the base body (211G) and the other of the two ends of the operating portion (212G).

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