Tether assembly, child seat and support structure thereof

Abstract

To provide a child seat.SOLUTION: The present invention relates to a child seat, a tether assembly and a support structure, and the child seat is attached to a vehicle seat and includes a base, a seat (20), a top lever, a tether assembly, and an alarm device. The base has an anchor part connected to the vehicle seat, the seat is connected to the base, the top lever is fixed to a rear part of the base, and the tether assembly includes a top tether (410) and a tether fixation part that are connected to each other. The top tether is connected to the top lever, the tether fixation part is connected to the vehicle seat, and the alarm device includes a switch (520). When the top tether is pulled, the switch can be triggered. The child seat can easily indicate incorrect fixation of the tether assembly and the top tether.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a tether assembly, a child car seat and its support structure. [Background technology]

[0002] A child car seat is a seat designed specifically for children, and is assembled in a vehicle so that a child can sit in the child car seat, and the child is restrained in the child car seat to protect the child's safety.

[0003] Existing child car seats typically include a base and a seat attached to the base, with the ISOFIX interface directly attached to one side of the base and the top tether directly fixed to the back of the seat, and the top tether of the child car seat and the ISOFIX interface connected to corresponding installation locations inside the vehicle so that the child car seat can be secured. When a child car seat is installed in a car seat in the forward direction, the seat is attached to the base in the forward direction, and the top tether and the ISOFIX interface are located on the same side, closer to the car seat. The position where the top tether of the seat is installed is not in contact with the car seat but is spaced apart, which means that the distance between the top tether and the corresponding installation location on the top of the car seat is far and the length of the top tether must be long, resulting in high material costs. When a child car seat is installed in the reverse direction, the seat is installed in the reverse direction to the base, and the installation direction of the base is the same as when the child car seat is installed in the forward direction. However, since the top tether is installed on the back of the seat, it is located on one side away from the car seat. However, when the base is located on the other side closer to the car seat and the top tether is to be attached to the upper attachment point of the car seat, the top tether needs to be moved from the back of the seat to the front of the seat to attach to the upper attachment point of the car seat. However, the movement path of the top tether can interfere with the child car seat passenger, affecting the riding comfort and comfort of the child car seat passenger and causing them to cry. Furthermore, the distance between the top tether and the corresponding upper attachment point of the car seat is far, and the length of the top tether needs to be increased to attach to the car seat.

[0004] The ISOFIX interfaces are fixed on both sides of the base, and the Top Tether interface is fixed on the top of the car seat. The three-point fixation securely fastens the car seat to the car seat, preventing it from flipping over in the event of an impact.

[0005] Because child car seats require many interfaces to be fixed and the fixing operation is complicated, the interfaces may not be fixed in position while the child car seat is in use. This is easily unnoticed by the child car seat installer, and the child car seat's protective function may be lost. Therefore, a child car seat that can indicate whether all of the interfaces are fixed in position is needed.

[0006] When a child car seat is installed in the forward direction, the seat is attached to the base in the forward direction, and the Top Tether and ISOFIX interface are located on the same side, closer to the car seat. The Top Tether on the seat is not directly in contact with the car seat, but is spaced apart. This means the distance between the Top Tether and the corresponding upper mounting point on the car seat is far, necessitating a longer Top Tether length and increased material costs. When a child car seat is installed in the reverse direction, the seat is attached to the base in the reverse direction. The base mounting direction is the same as when the child car seat is installed in the forward direction. The Top Tether is located on the back of the seat, so it is positioned on one side away from the car seat. However, if the base is positioned on the other side closer to the car seat and the Top Tether is attached to the upper mounting point on the car seat, the Top Tether must be moved from the back of the seat to the front of the seat to attach to the upper mounting point on the car seat. However, the Top Tether's movement path interferes with the child car seat passenger, affecting their riding comfort and safety. Therefore, there is a need for a child car seat that allows for easy Top Tether connection without interfering with the child inside.

[0007] After the top tether is secured in place, it must be pulled to ensure a secure connection to the rest of the child car seat. However, conventional methods for adjusting the length of the top tether only allow adjustment in one direction, making it difficult to apply sufficient tension due to space constraints in different types of vehicles. Therefore, there is a need for a tether assembly that allows the top tether to be conveniently tensioned in various ways, and a child car seat having such a tether assembly.

[0008] When a child car seat is subjected to an impact, a large separation impact force is applied between the base and the seat, so a child car seat that can fully demonstrate the adhesive strength between the base and the seat is required. Summary of the Invention [Problem to be solved by the invention]

[0009] SUMMARY OF THE INVENTION It is an object of the present invention to provide a tether assembly, a child car seat, and a support structure therefor, which can mitigate or eliminate at least one of the above disadvantages.

[0010] An object of the present invention is to provide a support structure for a child car seat that can shorten the period of use of a top tether and prevent the attachment path of the top tether from interfering with a passenger.

[0011] Another object of the present invention is to provide a child car seat that can shorten the length of the top tether in use and prevent the top tether's attachment path from interfering with passengers by providing the child car seat with a child car seat support structure. [Means for solving the problem]

[0012] To achieve the above object, in one aspect, the present invention provides a child seat attached to a vehicle seat, comprising: a base having an anchor portion connected to a lower part of the vehicle seat; a seat connected to the base; a top lever fixed to a rear part of the base; a tether assembly including a top tether and a tether fixing portion connected to each other, wherein the top tether is connected to the top lever and the tether fixing portion is connected to the vehicle seat; and an alarm device including a switch, capable of triggering the switch when the top tether is pulled.

[0013] In one embodiment, the alarm device is configured to issue an alarm when the top tether is pulled and the anchor portion is not fixed in a predetermined position, or when the top tether is not pulled and the anchor portion is fixed in a predetermined position, and not to issue an alarm when the top tether is pulled and the anchor portion is fixed in a predetermined position, or when the top tether is not pulled and the anchor portion is not fixed in a predetermined position.

[0014] In one embodiment, the child car seat has a safe operating state, a non-operating state, and a malfunctioning state, and in the safe operating state, the top tether is pulled and the anchor part is fixed in position, and in the non-operating state, the top tether is not pulled and the anchor part is not fixed in position, and the malfunctioning state is a situation other than the non-operating state and the operating state, and the alarm device issues an alarm when the child car seat is in the malfunctioning state and does not issue an alarm when the child car seat is in the safe operating state or the non-operating state.

[0015] In one embodiment, the alarm device includes a main body, a plurality of switches, and an alarm, the plurality of switches being electrically connected to the main body and capable of providing a signal to the main body, the main body determining whether to issue an alarm based on the signal, and the alarm executing the alarm if the main body determines that an alarm should be issued.

[0016] In one embodiment, the main body is mounted on the base, and the alarm provides the alarm with at least one of sound and light.

[0017] In one embodiment, the tether fixing portion is a hook. The tether assembly is a Top Tether type connector, and the anchor portion is an ISOFIX type connector. The seat is rotatable around an axis within a range of angles relative to the base. The axis is approximately perpendicular to the top surface of the base. The base is attached to a vehicle seat and has a bottom surface and a top surface that is inclined relative to the bottom surface. The seat is configured to accommodate a child. The switch can provide a signal to the main body indicating whether the top tether is tensioned or the anchor portion is fixed in place.

[0018] In one embodiment, the child seat further includes a drive component, the drive component including at least one trigger portion and at least one connection portion connected to the top tether, the connection portion being connected to the trigger portion, and the trigger portion triggering at least one switch.

[0019] In one embodiment, the child seat further includes a drive component, the drive component including a plurality of trigger portions and one or more connection portions connected to the top tether, wherein one or more of the connection portions are connected to one trigger portion, and the plurality of trigger portions respectively trigger the plurality of switches so that the plurality of switches provide signals to the main body portion.

[0020] In one embodiment, the connection portion is provided inside the top lever and is limited to be movable within a certain distance range, and the plurality of trigger portions are provided on the base, respectively.

[0021] In one embodiment, an opening is provided at the top of the top lever, the top tether passes through the opening and is partially provided inside the top lever, the top lever includes two vertical cues, the two vertical cues (310) are erected symmetrically at the rear of the base, a rail is connected to the tops of the two vertical cues, the opening is provided at the top of each of the two vertical cues, two top tethers pass through the openings of each of the two vertical cues and are partially provided inside the top lever, the drive component includes two of the connecting parts, and the two top tethers are connected to the two connecting parts, respectively.

[0022] In one embodiment, the connection portion is connected to the trigger portions via a steel wire, each of the trigger portions is restricted to move within a certain distance range, and includes an elastic recovery element, the elastic recovery element is configured to apply a force that prevents each of the trigger portions from triggering a corresponding switch, and the plurality of trigger portions respond to tensioning of the top tether or the anchor portion being fixed in place, and each of the trigger portions triggers a corresponding switch by physical contact with the corresponding switch.

[0023] In one embodiment, the anchor portion includes two anchor arms, and the alarm device issues an alarm when any one of the two top tethers is pulled and any one of the anchor arms is not fixed in a predetermined position or the other of the two top tethers is not pulled, and further issues an alarm when both of the two top tethers are pulled and either of the two anchor arms is fixed in a predetermined position, or issues an alarm when any one of the two anchor arms is fixed in a predetermined position and either one of the two top tethers is not pulled or the other of the two anchor arms is not fixed in a predetermined position, and further issues an alarm when both of the two top tethers are pulled and either of the two anchor arms is fixed in a predetermined position, or does not issue an alarm when neither of the two top tethers is pulled and either of the two anchor arms is fixed in a predetermined position.

[0024] In one embodiment, the top lever includes two vertical cues and one rail, the two vertical cues (310) are erected symmetrically at the rear of the base, a rail is connected to the top ends of the two vertical cues, the opening is provided at the center of the upper surface of the rail, a storage section is provided at the center of the lower surface of the rail, one switch among the plurality of switches is provided in the storage section, one end of the top tether is fixed to the storage section, and when the top tether is pulled, pressure is applied to the one switch to trigger the one switch, thereby the one switch provides a signal to the main body section.

[0025] In one embodiment, the child car seat further includes two trigger portions, the anchor portion includes two anchor arms, and the two trigger portions trigger associated switches in response to the two anchor arms being secured in place.

[0026] In one embodiment, the child seat further includes a plurality of trigger portions, each of which triggers a corresponding switch associated therewith, and the corresponding switch provides a signal to the main body portion; one end of the top tether is connected to one of the plurality of trigger portions; the top lever includes a vertical cue and a storage portion; the vertical cue (310) stands upright at the center of the rear of the base; the storage portion is arranged laterally at the top end of the vertical cue; the opening is provided at the center of the top surface of the storage portion; and the one end of the top tether is located in the storage portion.

[0027] In one embodiment, the one trigger part is mounted on the base and is limited to move within a certain distance range, and when the top tether is pulled, the one trigger part makes physical contact to trigger an associated corresponding switch, thereby causing the corresponding switch to provide a signal to the main body part.

[0028] In one embodiment, the horizontal length of the storage section is greater than the horizontal length of the vertical cue, a stopper is provided at one end of the top tether so that the stopper cannot pass through the opening, the internal space of the storage section is configured to allow the one end of the top tether to move a certain distance in the vertical direction, and the one trigger section is formed on a sheet body, connected to the one end of the top tether via a steel wire, and has a longitudinal through hole.

[0029] In one embodiment, the anchor portion includes two anchor arms, and the alarm device issues an alarm when the top tether is pulled and any one of the two anchor arms is not fixed in a predetermined position, and does not issue an alarm when the top tether is pulled and either of the two anchor arms is fixed in a predetermined position, or issues an alarm when the top tether is not pulled and either of the two anchor arms is fixed in a predetermined position, and does not issue an alarm when the top tether is pulled and either of the two anchor arms is fixed in a predetermined position.

[0030] In one embodiment, the tether assembly includes two adjusters, any one of which can adjust the length of the tether assembly.

[0031] In one embodiment, the two adjusters are arranged in opposite directions, the top tether includes two adjustable bands and a connecting band, the connecting band is connected between the two adjusters, and the two adjustable bands pass through the two adjusters to form two free ends facing in opposite directions, so that the length of the tether assembly can be adjusted along two opposite directions by pulling the two free ends.

[0032] In one embodiment, the tether anchor is secured to the distal end of one of the two adjustable straps.

[0033] In one embodiment, the tether anchor is slidably connected to one of the two adjustable straps.

[0034] In one embodiment, the tether assembly further includes a bidirectional adjuster, the bidirectional adjuster being capable of adjusting the length of the tether assembly along two opposite directions.

[0035] In one embodiment, the base and the seat include corresponding ring portions, the base and the seat are connected via the ring portions so that the seat can rotate relative to the base, and the ring portions of the base and the seat are respectively provided with reinforcing parts connected to each other to strengthen the connection force between the seat and the base.

[0036] In one embodiment, the ring portion of the base and the ring portion of the seat are each provided with four of the reinforcing parts, the four reinforcing parts of the base are uniformly arranged around the circumference of the ring portion of the base, the four reinforcing parts of the seat are arranged at positions corresponding to the four reinforcing parts of the base, the base and the seat each have one reinforcing part, which is arranged on one side of each ring portion closer to the top lever, and the length extending around the circumference of each ring portion is longer than the other three reinforcing parts.

[0037] According to another aspect of the present invention, there is provided a child car seat including a base, a seat, a top lever, a tether assembly, and an alarm device, wherein the base is provided with an anchor portion protruding rearward, the seat is connected to the base, the top lever includes a lever member and a storage portion, the lever member is provided at the rear of the base, the storage portion is externally fitted to an upper portion of the lever member, the tether assembly includes a top tether and a tether fixing portion, the top tether is externally fitted to an upper portion of the lever member, and the alarm device can issue an alarm based on whether the top tether is pulled and whether the anchor portion is fixed in a predetermined position. The alarm device includes a main body, a plurality of switches, and an alarm, wherein the main body determines whether to issue an alarm, the plurality of switches are electrically connected to the main body to provide a signal to the main body, and the alarm issues the alarm when the main body determines to issue an alarm.

[0038] In one embodiment, the top tether is fitted onto the top of the lever part, and the accommodating portion limits the range of movement of the top tether on the lever part, wherein one end of the top tether is provided in the internal space of the accommodating portion and a trigger portion is provided, and one switch of the plurality of switches is provided in the internal space of the accommodating portion, and when the top tether is pulled, the trigger portion triggers the one switch, and the one switch provides a signal to the main body portion.

[0039] In one embodiment, a through hole is formed in the upper part of the lever part, wherein one end of the top tether passes through the through hole and is provided in the internal space of the accommodating part, and a trigger part is provided, and one of the plurality of switches is provided in the internal space of the accommodating part, and when the top tether is pulled, the trigger part triggers the one switch, and the one switch provides a signal to the main body part.

[0040] In one embodiment, a flexible part is provided in the receiving part, and the flexible part is provided inside the through-hole to avoid direct contact between the top tether and the inside of the through-hole.

[0041] In one embodiment, an elastic element is provided in the housing, and the elastic element is provided between the housing and the trigger element, and applies a force to the trigger element such that the trigger element does not trigger the one switch.

[0042] According to another aspect of the present invention, there is provided a child car seat, including an alarm device providing an alarm mechanism for safe installation of the child car seat, the alarm device including a plurality of switches, a main body, and an alarm, the plurality of switches can be opened and closed, the main body determines whether to issue an alarm based on the opening and closing of the plurality of switches, and the alarm executes the alarm if the main body determines that an alarm should be issued.

[0043] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly, the base having an anchor portion extending rearward, the anchor portion including two anchor arms, a top lever fixed to the rear of the base, a tether assembly partially formed inside the top lever, and the plurality of switches including two switches that close when the two anchor arms are fixed in position and a switch that closes when the tether assembly is pulled.

[0044] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly, wherein the base has an anchor portion that protrudes rearward, the anchor portion including two anchor arms, the top lever is fixed to the rear of the base, the tether assembly includes two top tethers, a portion of each of the two top tethers is provided inside the top lever, and the multiple switches include two switches that close when the two anchor arms are fixed in position and two switches that close when the two top tethers are pulled.

[0045] In one embodiment, if at least one of the plurality of switches is closed but not all of the plurality of switches is closed, the main body determines to issue an alarm, and if all of the plurality of switches are open and closed, the main body determines not to issue an alarm.

[0046] In one embodiment, the alarm includes at least one of an optical alarm device and an audible alarm device, the optical alarm device being capable of indicating the opening and closing of each switch among the plurality of switches, and the audible alarm device making a sound when it determines that an alarm should be issued in the main body.

[0047] In one embodiment, the optical alarm device provides the indication by illuminating a plurality of LEDs, and the optical alarm device is provided on the top surface of the front part of the base.

[0048] According to another aspect of the present invention, there is provided a child car seat including a base, a seat, a top lever, a tether assembly, an alarm device, and three trigger parts, wherein the base is provided with two anchor arms extending rearward, the seat is connected to the base, the top lever includes a lever part provided at the rear of the base, the tether assembly includes a top tether, one end of the top tether is fixed to the rear side of an upper part of the lever part and extends away from the upper part passing through the lower side, front side, and upper side of the lever part, and the alarm device includes three switches and three trigger parts. and a top tether, and when any one of the three switches is not triggered, the alarm device issues an alarm and the three trigger portions trigger the three switches, one of the three trigger portions protrudes downward from the underside of the upper part of the lever component and contacts the top tether, when the top tether is pulled, the top tether presses the one trigger portion to trigger one of the three switches, and further, when the two anchor arms are fixed in place, the other two trigger portions trigger the other two switches.

[0049] In one embodiment, the top lever further includes a cover plate, the cover plate being fitted to the top of the lever part and having an opening through which the top tether extends and protrudes.

[0050] According to another aspect of the present invention, there is provided a bidirectional regulator including a regulator case, two buttons, a fixed seat, and two locking components, wherein the regulator case has two first openings facing opposite directions, two buttons are respectively provided in the two first openings and can move along the advancing direction of the regulator case, the fixed seat is fixed to the bottom of the regulator case and has two second openings, two locking components are provided inside the regulator case and move together with the two buttons to form a locked position and an released position, wherein two bands enter the regulator case through the two second openings, pass through gaps between the two locking components and the fixed seat, and protrude from the regulator case to form two free ends extending along opposite directions, and further wherein the two locking components and the fixed seat clamp the two bands respectively in the locked position, and the two locking components and the fixed seat allow the two bands to move in the released position.

[0051] In one embodiment, an elastic recovery element is provided between the two buttons, which respectively provides the two buttons with a moving force toward the outside of the regulator case, and two tension indicating windows are formed on the top surface of the regulator case to indicate whether the two straps are pulled. According to another aspect of the present invention, there is provided a child car seat including a base, a seat, and a tether assembly, wherein the seat is connected to the base and includes a backrest, a reinforcing tube is formed at the top end of the backrest, and spacer rings are formed on both sides of the reinforcing tube, and the tether assembly includes a top tether and a tether fixing portion, and the top tether is connected to both sides of the lower end of the backrest and extends upward along the backrest to pass through the spacer rings.

[0052] In one embodiment, the top tether is connected to a flexible part of the backrest.

[0053] In one embodiment, the connection portion includes a fixed part and a moving part, a through hole is formed in the moving part, the fixed part passes through the through hole and both ends of the fixed part are fixed to the top lever, and the through hole allows the moving part to move within a certain distance range relative to the fixed part.

[0054] In one embodiment, an opening is provided at the top of the top lever, the top tether passes through the opening and is partially provided inside the top lever, the top lever includes two vertical cues, the two vertical cues (310) are erected symmetrically at the rear of the base, one rail is connected to the tops of the two vertical cues, the opening is provided at the top of each of the two vertical cues, two top tethers pass through the openings of each of the two vertical cues and are partially provided inside the top lever, the drive component includes two of the connection parts, and the two top tethers are connected to the two connection parts, respectively.

[0055] In one embodiment, the connecting portion is connected to the trigger portion via an interlocking member, the trigger portion is limited to a certain range of movement and includes an elastically recoverable member, the elastically recoverable member is configured to apply a force that prevents each trigger portion from triggering a corresponding switch, and the plurality of trigger portions respond to tension on the top tether, and the trigger portion triggers by contact with a switch.

[0056] In one embodiment, the top lever includes a vertical cue and a rail, the vertical cue stands at the rear of the base, the rail is connected to the top end of the vertical cue, an opening is provided on the upper surface of the rail, a housing portion is provided on the lower surface of the rail, the switch is provided in the housing portion, one end of the top tether is fixed to the housing portion, and when the top tether is pulled, pressure is applied to the switch to trigger it, and the switch provides a signal to the main body portion.

[0057] In one embodiment, the top tether wraps around the top lever and the trigger portion, and when the top tether is pulled, it applies pressure to the trigger portion, causing the trigger portion to move into the top lever and trigger the switch.

[0058] In one embodiment, the child seat further includes a plurality of trigger portions, each of which triggers a corresponding switch associated therewith, and the corresponding switch provides a signal to the main body portion; one end of the top tether is connected to one of the plurality of trigger portions; the top lever includes a vertical cue and a storage portion; the vertical cue (310) stands upright at the center of the rear of the base; the storage portion is arranged laterally at the top end of the vertical cue; the opening is provided at the center of the top surface of the storage portion; and the one end of the top tether is located in the storage portion.

[0059] In one embodiment, the one trigger part is mounted on the base and is limited to be movable within a certain distance range, and when the top tether is pulled, the trigger part contacts and triggers the associated corresponding switch.

[0060] In one embodiment, the horizontal length of the storage section is greater than the horizontal length of the vertical cue, a stopper is provided at one end of the top tether so that the stopper cannot pass through the opening, the internal space of the storage section is configured to allow the one end of the top tether to move a certain distance in the vertical direction, and the one trigger section is formed on a sheet body, connected to the one end of the top tether via an interlocking part, and has a longitudinal through hole.

[0061] In one embodiment, an elastic recovery part is connected to the trigger part, and the elastic recovery part applies a force to the trigger part so that the trigger part does not trigger the switch, and a position limiting part is formed in the base and passes through the elongated through-hole, and the position limiting part limits the movement range of the trigger part.

[0062] In another aspect, there is provided a child car seat including a base, a seat, a top lever, and a tether assembly, wherein an anchor portion is provided on the base, the seat is connected to the base, the top lever includes a lever part and a storage part, the lever part is provided on a rear part of the base, the storage part is provided on the lever part, the tether assembly includes a top tether and a tether fixing part, and the top tether is provided on an upper part of the lever part.

[0063] In one embodiment, the top tether is fitted onto the top of the lever part, and the accommodating portion limits the range of movement of the top tether on the lever part, wherein one end of the top tether is provided in the internal space of the accommodating portion and a trigger portion is provided, and at least one switch is further provided in the internal space of the accommodating portion, and when the top tether is pulled, the trigger portion triggers the at least one switch.

[0064] In one embodiment, a through hole is formed in the upper part of the lever part, one end of the top tether passes through the through hole and is provided in the internal space of the storage part, and a trigger part is provided, a switch is provided in the internal space of the storage part, and the trigger part triggers the switch when the top tether is pulled.

[0065] In one embodiment, a flexible part is provided in the receiving part, and the flexible part is provided inside the through-hole to avoid direct contact between the top tether and the inside of the through-hole.

[0066] In one embodiment, an elastic recovery element is provided in the housing portion, and the elastic recovery element is provided between the housing portion and the trigger portion, thereby applying a force to the trigger portion that prevents the trigger portion from triggering the one switch.

[0067] In one embodiment, the elastic recovery element is connected to the housing and the trigger part to apply a pulling force, the housing part is provided with a groove for the trigger part to move in, and the trigger part can trigger the switch when it moves in the groove.

[0068] In another aspect, there is provided a child car seat including an alarm device, the alarm device providing an alarm mechanism for safe mounting of the child car seat, the alarm device including a plurality of switches, a main body, and an alarm, the plurality of switches being capable of being opened and closed, the main body being capable of determining whether to issue an alarm based on the opening and closing of the plurality of switches, and the alarm issuing the alarm when the main body determines that an alarm should be issued.

[0069] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly, the base having an anchor portion that protrudes rearward, the anchor portion including two anchor arms, a top lever fixed to the rear of the base, a tether assembly having a portion inside the top lever, and the plurality of switches including two switches that close when the two anchor arms are fixed in position and a switch that closes when the tether assembly is pulled.

[0070] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly, wherein the base has an anchor portion that protrudes rearward, the anchor portion including two anchor arms, the top lever is fixed to the rear of the base, the tether assembly includes one or two top tethers, a portion of each of the two top tethers is provided inside the top lever, and the multiple switches include two switches that close when the two anchor arms are fixed in position and two switches that close when the one or two top tethers are pulled.

[0071] In one embodiment, the child seat includes a trigger portion configured to protrude downward from the underside of the upper portion of the top lever, wherein the top tether is wrapped around the trigger portion so that when the top tether is pulled, the top tether applies pressure to the trigger portion, and further, the trigger portion moves upward to trigger the switch.

[0072] In one embodiment, the top lever further includes a cover plate, the cover plate is fitted onto the top of the top lever, and has an opening through which the top tether extends and protrudes, a groove is formed in the cover plate for the trigger portion to move, an elastic recovery element is connected between the cover plate and the trigger portion to apply a tensile force, at least a portion of the one switch is provided in the groove, and the one switch is triggered when the trigger portion moves in the groove.

[0073] In another aspect, there is provided a child seat that can be attached to a vehicle seat, the child seat including a base, a seat, a top lever, a tether assembly, and an alarm device, wherein the base has an anchor portion connected to the bottom of the vehicle seat, the seat is connected to the base, the top lever is fixed to the rear of the base, the tether assembly includes a top tether connected to the top lever and a tether fixing portion, the top tether is connected to the top lever, and the tether fixing portion is in contact with the top of the vehicle seat, the alarm device issues an alarm signal if it determines that a predetermined condition is met, and does not issue an alarm signal if it determines that the predetermined condition is not met, the predetermined condition being whether the top tether is pulled and / or whether the anchor portion is fixed in a predetermined position.

[0074] In another aspect, there is provided a child car seat including a base, a seat, and a tether assembly, the seat being rotatably connected to the base and further including a backrest, the backrest having a reinforcing tube formed at its top end, the tether assembly including a top tether and a tether fixing portion connected to each other, the top tether being connected to a lower end of the backrest, and the seat having a reinforcing structure joining the base.

[0075] In one embodiment, the base and the seat include corresponding ring portions (120, 220), the base is connected to the seat so that the seat can rotate relative to the base, and the ring portions of the base and the seat are respectively provided with base reinforcing parts and seat reinforcing parts connected to each other to strengthen the connection force between the seat and the base.

[0076] In one embodiment, the base has a plurality of base reinforcing parts, the seat has a plurality of seat reinforcing parts, the plurality of base reinforcing parts are uniformly arranged around the circumference of the ring portion of the base, the plurality of seat reinforcing parts are respectively arranged at positions corresponding to the plurality of base reinforcing parts, and the plurality of base reinforcing parts have different lengths.

[0077] In one embodiment, the base has a ring portion, and the seat is provided with a seat reinforcing part, which is joined to the ring portion of the base to strengthen the connection force between the seat and the base.

[0078] In one embodiment, the seat includes two seat reinforcement parts, and the positions of the two seat reinforcement parts correspond to opposite sides of the ring part of the base.

[0079] In one embodiment, the top tether is connected to a flexible part of the backrest, the top tether being provided inside the backrest and extending away from the backrest through the spacer ring.

[0080] In one embodiment, spacer rings are formed on both sides of the reinforcing tube, and the top tether extends upward along the backrest and passes through the spacer rings.

[0081] In one embodiment, the base has a base reinforcing part and the seat reinforcing part joins with the base reinforcing part.

[0082] In one embodiment, the base has a ring portion, and the seat reinforcing component is joined to the ring portion.

[0083] In one aspect, the present invention provides a tether assembly for securing a child seat to a vehicle, the tether assembly including an adjuster, a tether fixing portion, and a top tether, the adjuster is used to adjust the length of the tether assembly, the tether fixing portion is fixed to a corresponding fixing portion of the vehicle, the top tether includes at least two bands and is connected to the child seat and the tether fixing portion via the adjuster, and at least one band of the top tether passes through the adjuster to form at least two free ends.

[0084] In one embodiment, the child car seat includes a base, and is mounted on a seat above the base and supported by a top lever at the rear of the base.

[0085] In one embodiment, the adjuster is a one-way adjuster, the top tether includes three bands, one ends of a first band and a second band of the three bands are fixed to both sides of the child seat, respectively, the other ends of the first band and the second band of the three bands are connected to both ends of a third band of the three bands via two one-way adjusters, respectively, the tether fixing portion is fixedly or slidably connected to any of the three bands, and the top tether passes through the two one-way adjusters to form two free ends.

[0086] In one embodiment, the two unidirectional adjusters determine positions along the same direction and the two free ends extend along the same direction.

[0087] In one embodiment, the two unidirectional adjusters are positioned along opposite directions so that the two free ends extend along opposite directions.

[0088] In one embodiment, the tether anchor is fixedly or slidably connected to the first strap or the second strap.

[0089] In one embodiment, the tether anchor is fixedly or slidably connected to the third strap.

[0090] In one embodiment, the adjuster is a bidirectional adjuster or a unidirectional adjuster, and the at least two free ends are formed by the top tether passing through the bidirectional adjuster or the unidirectional adjuster.

[0091] In one embodiment, the top tether includes three straps, one end of a first strap and a second strap of the three straps are fixed to both sides of the child seat, and the other end of the first strap and the second strap of the three straps are connected to one end of a third strap of the three straps via a connecting part.

[0092] In one embodiment, the top tether further includes a fourth band, the third band and the fourth band are connected to the fourth band via two one-way adjusters or one two-way adjuster, and the tether fixing portion is fixedly or slidably connected to the fourth band.

[0093] In one embodiment, the top tether includes three straps, both ends of a first strap of the three straps are fixed to both sides of the child seat, one end of a second strap of the three straps is fixedly or slidably connected to the first strap, one end of a third strap of the three straps is connected to the other end of the second strap via two one-way adjusters or one two-way adjuster, and the tether fixing portion is fixedly or slidably connected to the other end of the third strap.

[0094] In one embodiment, the top tether includes two straps, one end of each of which is fixed to either side of the child car seat, and the other end of each of which is connected to the adjuster, the tether fixing portion is fixedly or slidably connected to one of the two straps, and the adjuster is a bidirectional adjuster that can adjust the length of the tether assembly along two opposite directions.

[0095] In one embodiment, the top tether includes two straps, one end of a first strap of the two straps is fixed to the child seat, the other end of the first strap is connected to one end of a second strap of the two straps via two one-way adjusters or one two-way adjuster, and the tether fixing portion is fixedly or slidably connected to the other end of the second strap.

[0096] In one embodiment, the two unidirectional adjusters determine positions along opposite directions, and a connecting band connects the two unidirectional adjusters.

[0097] In one embodiment, the adjuster has a locked position and a released position, and in the locked position, a top tether passing through the adjuster is locked by the adjuster, and in the released position, the adjuster allows the top tether passing through the adjuster to move relative to the adjuster.

[0098] According to another aspect of the present application, there is provided a child car seat including a base, a seat, a top lever, and the above-mentioned tether assembly, wherein the base is provided with an anchor portion that protrudes rearward, the seat is connected to the base, the top lever is fixed to the rear of the base, and the top tether of the tether assembly is fixed to the top lever.

[0099] In one embodiment, the top lever includes two vertical cues and a fixed portion, and openings are provided at the tops of the two vertical cues.

[0100] In one embodiment, the top lever includes two vertical cues and a fixed portion, and an opening is provided in the center of the upper surface of the fixed portion.

[0101] In one embodiment, the top lever includes one vertical cue and one storage section, and an opening is provided in the center of the top surface of the storage section.

[0102] According to another aspect of the present application, there is provided a tether assembly for securing a child car seat to a vehicle, the tether assembly including a two-way adjuster, a tether fixing portion, and a top tether, the two-way adjuster being capable of adjusting the length of the tether assembly along two opposite directions, the tether fixing portion being fixed to a corresponding fixing portion of the vehicle, and the top tether including two or more bands separated from each other and connected to the two-way adjuster and the child car seat, and also connected to the two-way adjuster and the tether fixing portion.

[0103] In one embodiment, the bidirectional regulator includes a regulator case, two buttons, a fixed seat, and two locking components, wherein the regulator case has two first openings facing opposite directions, two buttons are respectively provided in the two first openings and can move along the advancing direction of the regulator case, the fixed seat is fixed to the bottom of the regulator case and has two second openings, and two locking components are provided inside the regulator case and move together with the two buttons to form a locked position and an unlocked position.

[0104] In one embodiment, the two bands enter the regulator case through the two second openings, pass through the gaps between the two locking parts and the fixed seat, and protrude from the regulator case, thereby forming two free ends extending in opposite directions, wherein, in the locked position, the two locking parts and the fixed seat clamp the two bands, respectively, and in the released position, the two locking parts and the fixed seat allow the two bands to move.

[0105] In one embodiment, in the released position, pulling on the free ends shortens the tether assembly, and pulling on portions of the two straps other than the free ends lengthens the tether assembly.

[0106] In one embodiment, a spring is provided between the two buttons to provide a force to move the two buttons out of the regulator case.

[0107] In one embodiment, two tension indicating windows are formed on the top surface of the regulator case to indicate whether the two straps are tensioned.

[0108] The present invention provides a support structure for a child seat, which includes a base, a top lever, and a top tether, wherein the base has an attachment position for attaching the seat, the top lever is fixed to the base and is located on one side of the attachment position, and one end of the top tether is fixed to the top lever.

[0109] Compared with conventional technology, the child seat support structure of the present invention has one top lever fixed to the base, the top lever is located on one side of the mounting position for mounting the seat, and one end of the top tether is fixed to the top lever. When the seat is mounted in the mounting position in the forward direction, the top lever is located behind the seat, and after the child seat is mounted to the car seat, the distance between the top lever and the car seat is shorter than the distance between the seat and the car seat. Therefore, the length required to connect the top tether fixed to the top lever to the corresponding position on the car seat is shorter than the length required to fix the top tether to the seat in the past. This reduces the length used of the top tether and also reduces the material cost of the top tether. When the seat is installed in the reverse installation position, the installation position of the base does not change and it is installed in the seat direction. At this time, the top lever and top tether are located in front of the seat, and the installation path for installing the top tether at the corresponding position on the car seat is the same as the installation path of the top tether when the seat is installed in the forward installation position. Compared with the conventional top tether fixed to the seat, the installation path for installing the top tether at the corresponding position on the car seat does not interfere with the passenger on the seat, improving the riding comfort and comfort of the seat passenger and preventing the passenger in the child car seat from crying and fussing.

[0110] Preferably, the top lever includes a support tube portion and a rail portion, the support tube portion being fixed to the base and the rail portion being attached to the support tube portion.

[0111] Preferably, the support tube portion has a hollow structure, the rail portion is provided with one through hole, the through hole is connected to the inside of the support tube portion, and one end of the top tether passes through the through hole and is fixed to the inner wall of the support tube portion.

[0112] Preferably, the top tether further includes a first connecting part, the first connecting part being provided so as to pass through the support tube portion, and a webbing loop being provided at one end of the top tether, the webbing loop being fitted onto the first connecting part.

[0113] Preferably, the device further includes a second connecting part, wherein a first connecting hole is provided in the rail portion and a second connecting hole is provided in the support pipe portion, and the second connecting part passes through the first connecting hole and the second connecting hole to fix the rail portion to the support pipe portion.

[0114] Preferably, the number of support pipe portions is two, the two support pipe portions are spaced apart on the base, the rail portion is fixed to the two support pipe portions, the rail portion is provided with two through holes, and the two through holes communicate with the interiors of the two support pipe portions.

[0115] Preferably, the top tether includes a fixed portion and an attachment portion formed by crossing the two fixed portions, the two fixed portions pass through two through holes, the two fixed portions are fixed respectively within the two support tube portions, and the attachment portion is connected to the car seat.

[0116] Preferably, a first fixing component is provided at the other end of the top tether, and a storage position for storing the top tether is provided in the base, and the first fixing component is detachably connected to the storage position.

[0117] Preferably, the base is provided with a second fixed part located in the storage position, and the first fixed part is removably connected to the second fixed part.

[0118] Preferably, one of the first fixing part and the second fixing part has a male fastener structure, and the other of the first fixing part and the second fixing part has a female fastener structure.

[0119] Preferably, the storage location forms an internal concave structure.

[0120] Preferably, a reinforcing sheet for improving the strength of the top lever is included, and the reinforcing sheet is fixedly connected to the base and the top lever, respectively.

[0121] Preferably, the bottom of the reinforced sheet is fixed to the base and the side walls of the reinforced sheet are fixedly connected to the top lever.

[0122] Preferably, the lower portion of the top lever is thicker than the upper portion of the top lever.

[0123] Preferably, the base includes a case and a bracket, the bracket is provided inside the case, and the top lever passes through the case and is fixedly connected to the bracket.

[0124] To achieve the second object, the present invention provides a child car seat, which includes a seat and the above-mentioned child car seat support structure, and the seat is attached to an attachment position.

[0125] Compared with conventional technology, the child car seat of the present invention has a child car seat support structure, and one top lever is fixed to the base. The top lever is located on one side of the mounting position for mounting the seat, and one end of the top tether is fixed to the top lever. When the seat is mounted in the forward mounting position, the top lever is located behind the seat, and after the child car seat is mounted to the car seat, the distance between the top lever and the car seat is shorter than the distance between the seat and the car seat. Therefore, the length required to connect the top tether fixed to the top lever to the corresponding position on the car seat is shorter than the length required to fix the top tether to the seat in the past. This reduces the length of the top tether used and also reduces the material cost of the top tether. When the seat is installed in the reverse installation position, the installation position of the base does not change and it is installed in the seat direction. At this time, the top lever and top tether are located in front of the seat, and the installation path for installing the top tether at the corresponding position on the car seat is the same as the installation path of the top tether when the seat is installed in the forward installation position. Compared with the conventional top tether fixed to the seat, the installation path for installing the top tether at the corresponding position on the car seat does not interfere with the passenger on the seat, improving the riding comfort and comfort of the seat passenger and preventing the passenger in the child car seat from crying and fussing.

[0126] Preferably, when the seat is mounted in the forward mounting position, the top lever is located behind the seat, and when the seat is mounted in the reverse mounting position, the top lever is located in front of the seat.

[0127] The present invention has at least one of the following advantageous effects.

[0128] The child car seat of the present invention can conveniently indicate when it is not properly secured, thereby improving the safety of the child car seat. Furthermore, the child car seat of the present invention can accurately indicate which specific connection components are not secured in place. The top lever arrangement allows the seat to be freely positioned in various orientations, and the tether assembly does not interfere with the child's ability to ride. The tether assembly can be tensioned in at least two directions, making it easier to install the child car seat and, at the same time, making it easier to apply tension, ensuring the tension of the tether assembly and improving the safety of the child car seat. The use of a reinforcing component between the base and the seat improves the child car seat's resistance to impacts.

[0129] The tether assembly of the present invention can be pulled in at least two directions, thereby facilitating installation of the tether assembly. At the same time, it is more convenient to apply tension, ensuring that the tether assembly is tensioned and improving the safety of the tether assembly. The tether assembly of the present invention can be adjusted to a greater length. The tether assembly of the present invention can be pulled on different sides of the child car seat, so the pulling operation can be conveniently achieved regardless of which side of the child car seat the child car seat is placed on.

[0130] Various objects, features, and advantages of the present invention will become more apparent from consideration of the following detailed description of preferred embodiments of the invention in conjunction with the accompanying drawings, which are merely exemplary illustrations of the invention and are not necessarily drawn to scale. Like reference numerals represent the same or similar parts throughout the drawings. [Brief explanation of the drawings]

[0131] [Figure 1] 1 is a perspective view of a child car seat according to a first embodiment of the present invention; [Figure 2] 1 is a perspective view of a child car seat according to a first embodiment of the present application, where a portion of the child car seat is removed to show the internal structure. [Figure 3] 1 is a schematic diagram of a warning device for a child car seat according to the present invention; [Figure 4] 1 is a perspective view of some components of the child car seat of the present application. [Figure 5] FIG. 10 is a perspective view of a child car seat according to a second embodiment of the present invention. [Figure 6] 1 is a perspective view of a child car seat according to a second embodiment of the present application, in which part of the child car seat is removed to show the internal structure. [Figure 7] FIG. 10 is a perspective view of a child car seat according to a third embodiment of the present invention. [Figure 8] 1 is a perspective view of a child car seat according to a third embodiment of the present application, in which part of the child car seat is removed to show the internal structure. [Figure 9] FIG. 10 is a perspective view of some components of a child car seat according to a fourth embodiment of the present invention. [Figure 10] FIG. 10 is a partial cross-sectional view of some components of a child car seat according to a fourth embodiment of the present invention, in which the trigger portion is not triggered. [Figure 11] FIG. 10 is a partial cross-sectional view of a part of a child car seat according to a fourth embodiment of the present invention, in which the trigger portion is triggered. [Figure 12] FIG. 10 is an exemplary perspective view of a child car seat according to a fourth embodiment of the present invention. [Figure 13A] FIG. 10 is an exemplary partial perspective view of a child car seat according to a fourth embodiment of the present invention. [Figure 13B] FIG. 10 is a partial cross-sectional view of a child car seat according to a fourth embodiment of the present invention. [Figure 14] FIG. 10 is an exemplary partial cross-sectional view of a child car seat according to a fourth embodiment of the present application, in which the trigger portion is not triggered. [Figure 15] FIG. 10 is an exemplary partial cross-sectional view of a child car seat according to a fourth embodiment of the present application, in which the trigger portion is triggered. [Figure 16] 10 is a perspective view of a child car seat according to a fifth embodiment of the present application, with some parts removed to show the interior of the child car seat. FIG. [Figure 17] 10 is a perspective view of another child car seat according to a fifth embodiment of the present application, where some parts have been removed to show the interior of the child car seat. FIG. [Figure 18] FIG. 10 is a perspective view of a child car seat according to a sixth embodiment of the present invention. [Figure 19] FIG. 10 is a perspective view of some components of a child car seat according to a sixth embodiment of the present invention. [Figure 20] FIG. 10 is a perspective view of some parts of a child car seat according to a sixth embodiment of the present application, with some parts removed to show the interior of the child car seat. [Figure 21] FIG. 13 is a plan view of a child car seat according to a sixth embodiment of the present invention when the top tether is not pulled. [Figure 22] FIG. 13 is a plan view of a child car seat according to a sixth embodiment of the present invention when a top tether is being pulled. [Figure 23] FIG. 13 is another perspective view of some components of the child car seat according to the sixth embodiment of the present invention. [Figure 24] FIG. 10 is a side view of some components of a child car seat according to a sixth embodiment of the present invention, in which the tether fixing portion is separated from the top tether. [Figure 25] FIG. 13 is an exemplary cross-sectional view of some components of a child car seat according to a seventh embodiment of the present application. [Figure 26] FIG. 2 is a top view of the base and top lever of the child car seat of the present application. [Figure 27] FIG. 2 is a top view of the seat of the child car seat of the present application. [Figure 28] FIG. 10 is a top view of another embodiment of the base of the child car seat of the present application. [Figure 29] 1 is a top view of another embodiment of the base of the child car seat of the present application, with some parts removed. [Figure 30] FIG. 10 is a bottom view of another embodiment of the child car seat of the present application. [Figure 31] 1 is a side view of one embodiment of a child car seat of the present application. [Figure 32] 1 is a front view of one embodiment of a child car seat of the present application. [Figure 33] 1 is a perspective view of an embodiment of a child car seat according to the present invention; [Figure 34] FIG. 1 is a plan view of an adjuster of the tether assembly of the present application. [Figure 35] FIG. 2 is a perspective view of an adjuster of the tether assembly of the present application. [Figure 36] FIG. 10 is a perspective view of another embodiment of the child car seat of the present application. [Figure 37] FIG. 10 is a perspective view of another embodiment of the child car seat of the present application. [Figure 38] 1 is a schematic diagram of one embodiment of the tether assembly of the present application. [Figure 39] FIG. 2 is a schematic diagram of another embodiment of the tether assembly of the present application. [Figure 40] FIG. 2 is a schematic diagram of another embodiment of the tether assembly of the present application. [Figure 41] 1 is another embodiment of the tether assembly of the present application. [Figure 42] FIG. 2 is a cross-sectional view of an adjuster of the tether assembly of the present application. [Figure 43] 10 is a schematic diagram of another embodiment of a tether assembly of the child car seat of the present application. [Figure 44] 10 is a schematic diagram of another embodiment of a tether assembly of the child car seat of the present application. [Figure 45] 10 is a schematic diagram of another embodiment of a tether assembly of the child car seat of the present application. [Figure 46]10 is a schematic diagram of another embodiment of a tether assembly of the child car seat of the present application. [Figure 47] FIG. 2 is a perspective view of a bidirectional adjuster of the child car seat of the present application. [Figure 48] FIG. 2 is another perspective view of the bidirectional adjuster of the child car seat of the present application. [Figure 49] 1 is a cross-sectional view of a bidirectional adjuster of a child car seat of the present application, where the button is not pressed. [Figure 50] 1 is a cross-sectional view of a two-way adjuster of a child car seat according to the present application, where the button has been pressed. [Figure 51] 1 is a cross-sectional view of a bidirectional adjuster of a child car seat according to the present invention; [Figure 52] 1 is a top view of a bidirectional adjuster of a child car seat of the present application, where the button is not pressed. [Figure 53] 1 is a bottom view of the bidirectional adjuster of the child car seat of the present application, where the button is not pressed. [Figure 54] 1 is a top view of a bidirectional adjuster of a child car seat of the present application, where the button has been pressed. [Figure 55] 1 is a cross-sectional view of a bidirectional adjuster of a child car seat according to the present invention; [Figure 56] 1 is a schematic diagram of the structure of a child car seat according to the present invention; [Figure 57] 1 is a diagram illustrating the configuration of a child car seat according to the present invention. [Figure 58] 1 is a schematic diagram of the configuration of a support structure of a child car seat according to the present invention; [Figure 59] FIG. 59 is an enlarged view of a portion A in FIG. 58. [Figure 60] 1 is a cross-sectional view of a child car seat according to the present invention. [Figure 61] FIG. 61 is an enlarged view of part B in FIG. 60. [Figure 62] 1 is a schematic diagram of a child car seat according to the present invention with the base case removed; DETAILED DESCRIPTION OF THE INVENTION

[0132] In order to further explain the principle and structure of the present invention, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, however, the embodiments are used for illustration and description only, and do not limit the scope of patent protection of the present invention.

[0133] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. The term "and / or," as used herein, will also be understood to refer to and include any and all possible combinations of one or more of the associated listed items.

[0134] Below is a more detailed description of various concepts and embodiments of a child car seat that allows the seat to be rotated between rearward, sideways, and forward positions for ease of use. It should be noted that the various concepts described above and discussed in more detail below can be implemented in a variety of ways. Examples of specific embodiments and applications are primarily for illustrative purposes to enable those skilled in the art to implement embodiments and alternatives that will be apparent to those skilled in the art.

[0135] FIG. 1 is a perspective view of a child car seat according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a child car seat according to a first embodiment of the present invention, with a portion of the child car seat removed to show its internal structure.

[0136] The child car seat 1 includes a base 10, a seat 20, a top lever 30, a tether assembly 40, and an alarm device 50. The base 10 is provided with a protruding anchor portion 110. The seat 20 is connected to the base 10. The top lever 30 is fixed to the rear of the base 10. The tether assembly 40 includes a top tether 410 and a tether fixing portion 450. The top tether 410 is connected to the top lever. The alarm device 50 issues an alarm based on whether the top tether 410 and the anchor portion 110 are fixed in place. The alarm in this embodiment can be any means capable of presenting or notifying the installer of the child car seat 1. For example, the alarm device 50 can issue an alarm using at least one of sound and light. However, the alarm device 50 can also issue an alarm using any other method.

[0137] Typically, when it detects that the top tether 410 is pulled, it determines that the top tether 410 is fixed in place. Optionally, the warning device 50 issues a warning whether the top tether 410 is fixed to a corresponding interface of the vehicle.

[0138] In one embodiment, an opening 330 is provided in the upper part of the top lever 30. The top tether 410 may pass through the opening 330 and be partially provided inside the top lever 30.

[0139] The anchor portion 110 may be an ISOFIX type connector (a connector that can be fixed to an ISOFIX interface) and includes two anchor arms 111. The tether assembly 40 may be a Top Tether type connector (a connector that can be fixed to a Top Tether interface).

[0140] The tether fixing portion 450 may be a hook (also called a hook-shaped anchor) that can be fixedly or slidably provided at the distal end of the top tether 410 .

[0141] One end of the tether fixing part 450 may be connected to the top tether 410, and the other end of the tether fixing part 450 may be connected to a corresponding interface of the vehicle.

[0142] The seat 20 is rotatably disposed on the base 10 and can rotate relative to the base 10 along an axis substantially perpendicular to the upper surface of the base 10 within an angular range, such as 0° to 180°, 0° to 270°, or 0° to 180° to 360°. The angular range may be different. The reference for the above rotation is that the position shown in FIG. 1 is considered to be 0°.

[0143] The lower and upper surfaces of the base 10 may be angled so that the seat 20 tilts forward.

[0144] The top lever 30 includes a vertical cue 310 and one rail 320a, the vertical cues 310 are erected symmetrically (set almost vertically) at the rear of the base 10, one rail 320a is connected to the top of the vertical cue 310, one opening 330 is provided at the top end of each vertical cue 310, and a part of the top tether (i.e., both ends of one top tether) is provided inside the top lever 30 through the opening of the vertical cue 310. The vertical cue 310 and the rail 320a may be made of different materials; for example, the vertical cue 310 is made of metal, while the rail 320a is made of plastic.

[0145] The location of the opening 330 may be at the highest position of the vertical cue 310, or may be located on the rail 320a, or may be at the top of the vertical cue 310 but not at the highest position, which can be selected according to the location requirements of the top tether 410.

[0146] Referring to FIG. 2 , the child car seat 1 further includes a driving member 60. The driving member 60 includes a trigger member 620 and a connecting member 610. Optionally, the driving member 60 includes an interlocking member 630 connecting the trigger member 620 and the connecting member 610. The interlocking member 630 may be, for example, but not limited to, a steel wire. The trigger member 620 may be provided on one side of the base 10, for example, at a position where the vertical cue 310 extends downward. For example, trigger members 620 are provided on both sides of the base 10. The connecting member 610 connects to the top tether 410 in the vertical cue 310 and enters an end of the vertical cue 310. The connecting member 610 may be positioned so as to move vertically a certain distance within the vertical cue 310. The connecting member 610 is movably provided within the vertical cue 310. In one embodiment, the connecting member 610 has a fixed member (e.g., a lever member) and a movable member. The movable part is fixed to the end of the top tether 410, and a longitudinal through-hole is formed. The fixed part passes through the longitudinal through-hole and is arranged horizontally on the vertical cue 310. Because the longitudinal through-hole has a larger length than the fixed part, the movable part can move a certain distance vertically relative to the fixed part. However, the position of the connecting part 610 may be limited in other ways.

[0147] 2 and 3, the alarm device 530 includes a main body 510, a plurality of switches 520, and an alarm 530. The plurality of switches 520 are electrically connected to the main body 510 and provide signals to the main body 510. The main body 510 determines whether to issue an alarm based on the signals, and the alarm 530 issues the alarm if the main body 510 determines to issue an alarm. A main body portion 510 may be provided on the base 10 .

[0148] The anchor arm 111 is connected to one end of the trigger portion 620a, which is slidable relative to the base 10. When the anchor arm 111 engages with a corresponding interface on the vehicle, the trigger portion 620a is moved to trigger the corresponding switch 520. That is, when the anchor arm 111 (ISOFIX joint) engages with a corresponding interface on the vehicle (ISOFIX anchor part), the trigger portion 620a is moved, and the trigger portion 620a presses and closes the corresponding switch 520. Furthermore, the base 10 is provided with a long groove along which the trigger portion 620a slides, and the other end of the trigger portion 620a extends from the long groove to act on the switch 520. The long groove allows the trigger portion 620a to slide in the sliding direction when an external force is applied to the trigger portion 620a. Furthermore, the switch 520 includes a main body and an elastic sheet, and the elastic sheet is brought into contact with the main body as the trigger portion 620a moves to trigger the switch 520, and the switch 520 is electrically connected to the alarm device 50.

[0149] Trigger portion 620, 620a is limited to a certain range of movement (e.g., 1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 8 cm, 10 cm), and this movement can trigger switch 520. Trigger portion 620 includes an elastically recoverable member, which is configured to apply a force that prevents trigger portion 620 from triggering switch 520. In other words, when no tension is applied to top tether 410, the elastically recoverable member of the corresponding trigger portion 620 is configured to restore trigger portion 620 to its initial state.

[0150] The trigger units 620, 620a can trigger the corresponding switches 520 by physically contacting them in response to fixing the top tether 410 or the anchor unit 110 (specifically, the anchor arm 111) in place. The main unit 510 may be equipped with a power supply device, such as a battery, and has a calculation function or a logic decision function. When the different switches 520 all provide signals to the main unit 510, the main unit 510 can process these signals and finally output an instruction to the alarm 530 as to whether to alarm. The alarm 530 may include one sound alarm device 531 and one LED light warning device 532. The sound alarm device 531 can emit a prompt sound according to the instruction of the main unit 510. The LED light warning device 532 may have LED lights corresponding to the number of switches 520 and may be illuminated to indicate, for example, which switches 520 have not been triggered (indicating that either the top tether 410 or the anchor arm 111 is not tensioned or secured in place). The LED light warning device 532 may be located on the front of the base 10 (see FIG. 26 ). Optionally, the LED light warning device 532 may have three LED lights arranged side by side, where one LED light is associated with the switch 520 of the top tether 410 and two LED lights are associated with the switches 520 of the two anchor arms 111 of the anchor portion 110, respectively. Optionally, the LEDs may be replaced with other illuminating devices. The number of LED lights may be changed as needed, for example, four or more LED lights may be provided. The main purpose of the LED lights is to warn that the tether assembly 40 or anchor 110 is not attached. The LED light warning device 532 may be applied to each embodiment of the present application.

[0151] The alarm device may be configured to sound an alarm when the top tether 410 is pulled and the anchor part 110 is not fixed in a predetermined position, or when the top tether 410 is not pulled and the anchor part 110 is fixed in a predetermined position, and not to sound an alarm when the top tether 410 is pulled and the anchor part 110 is fixed in a predetermined position, or when the top tether 410 is not pulled and the anchor part 110 is not fixed in a predetermined position.

[0152] In one embodiment, four switches are associated with the two ends of the top tether 410 and the two anchor arms 111 of the anchor portion 110. In this case, if any one of the four switches is triggered, the alarm device 50 issues an alarm, and if all the switches are triggered, the alarm device 50 does not issue an alarm.

[0153] In other words, the alarm device 50 does not sound an alarm when none of the two top tethers 410 and two anchor arms 111 are fixed (or pulled), the alarm device 50 sounds an alarm when at least one of the two top tethers 410 and two anchor arms 111 is fixed (or pulled) (i.e., not all are fixed or pulled), and the alarm device 50 does not sound an alarm when none of the two top tethers 410 and two anchor arms 111 are fixed (or pulled).

[0154] At this time, the alarm may be the alarm device 50 emitting a sound and / or the LED light warning device emitting a light, and no alarm may be the alarm device 50 not emitting a sound and / or the LED light warning device not emitting a light.

[0155] In other embodiments, the alarm device 50 has three switches, each associated with one of the two ends of the top tether 410 and one of the two anchor arms 111 of the anchor portion 110, or each associated with one of the two ends of the top tether 410 and one of the two anchor arms 111 of the anchor portion 110.

[0156] In another embodiment, the alarm device 50 has two switches, each associated with one of the two ends of the top tether 410 and one of the two anchor arms 111 of the anchor portion 110 .

[0157] Optionally, the child car seat 1 has a safe operating state, a non-operating state, and a malfunctioning state, in which the safe operating state has the top tether 410 tensioned and the anchor part 110 fixed in a predetermined position, the non-operating state has the top tether 410 not tensioned and the anchor part 110 not fixed in a predetermined position, and the malfunctioning state is a state other than the non-operating state and the operating state. In this case, the alarm device 50 is configured to issue an alarm when the child car seat 1 is in the malfunctioning state, and not to issue an alarm when the child car seat 1 is in the safe operating state or the non-operating state.

[0158] FIG. 5 is a perspective view of a child car seat according to a second embodiment of the present invention, and FIG. 6 is a perspective view of a child car seat according to a second embodiment of the present invention, with part of the child car seat removed to show its internal structure.

[0159] The following mainly describes the differences between the second embodiment and the first embodiment. In this embodiment, the top lever 30 includes two vertical cues 310 and one rail 320a. The two vertical cues 310 are erected symmetrically on the rear of the base 10, and the one rail 320a is connected to the top ends of the two vertical cues 310. An opening 330 is provided in the center of the upper surface of the rail 320a, and a storage section 340 is provided in the center of the lower surface of the rail 320a.

[0160] The alarm device 50 has two or three switches 520, where one switch 520 is provided in the housing portion 340, and one end (one end) of the top tether 410 is fixed to the housing portion 340.

[0161] As shown in Fig. 6, one switch 520 is provided on one side of the top tether 410, allowing the top tether 410 to be extended bypassing the switch 520. When the top tether 410 is pulled (e.g., to secure the tether fixing portion 450 of the tether assembly 40 to a corresponding structure), pressure is applied to the one switch 520 to trigger the switch 520, and the switch provides a signal to the main body 510, indicating that the top tether 410 is pulled. The switch 520 may be connected to the main body 510 of the alarm device 50 by a signal line, which may pass through the internal space of the top lever 30. Optionally, the switch 520 may be wirelessly connected to the main body 510 of the alarm device 50, thereby transmitting a signal.

[0162] The child car seat 1 further includes two trigger portions 620. The anchor portion 110 includes two anchor arms 111, and the two trigger portions 620 trigger the associated corresponding switches 520 (i.e., associated with the switches of the two anchor arms 111) when the two anchor arms 111 are fixed in place. In this embodiment, the anchor portion 110 and the associated switches 520 and trigger portion 620 are substantially the same as those in the first embodiment.

[0163] The alarm device 50 does not issue an alarm when the top tether 410 is not pulled and none of the two anchor arms 111 is fixed in a predetermined position, issues an alarm when the top tether 410 is pulled and any one of the two anchor arms 111 is not fixed in a predetermined position, and does not issue an alarm when the top tether 410 is pulled and none of the two anchor arms 111 is fixed in a predetermined position, or issues an alarm when the top tether 410 is not pulled and any one of the two anchor arms 111 is fixed in a predetermined position, and does not issue an alarm when the top tether 410 is pulled and none of the two anchor arms 111 is fixed in a predetermined position.

[0164] FIG. 7 is a perspective view of a child car seat according to a third embodiment of the present invention, and FIG. 8 is a perspective view of a child car seat according to a third embodiment of the present invention, with part of the child car seat removed to show its internal structure.

[0165] The third embodiment differs from the first embodiment in the number and position of the top tethers 410. In the third embodiment, the child car seat 1 has three trigger portions 620, which trigger three associated switches 520, and the corresponding switches 520 provide signals to the main body portion 510. Specifically, one end of the top tether 410 is connected to one trigger portion 620, and two anchor arms 111 are connected to the two trigger portions 620, respectively.

[0166] The top lever 30 includes one vertical cue 310 and a storage portion 340. The vertical cue 310 stands upright at the center of the rear of the base 10, and the storage portion 340 is provided laterally at the top end of the vertical cue 310. An opening 330 is provided in the center of the upper surface of the storage portion 340. The one end of the top tether 410 is located in the storage portion 340.

[0167] As shown in FIG. 8 , one trigger 620 is mounted on the base 10 and is limited to a certain range of movement. Specifically, a position limiting portion (e.g., a through-hole) is provided on the trigger 620, so that a position limiting component (e.g., a pin or protrusion) fixed to the base 10 passes through the position limiting portion. Because the vertical length of the position limiting portion is greater than that of the position limiting component, the trigger 620 having the position limiting portion can move a certain distance in the vertical direction. Furthermore, the position limiting component achieves its position limiting function by acting on the edge of the position limiting portion. When the top tether 410 is pulled, the trigger 620 physically contacts and triggers one switch 520, which then provides a signal to the main body 510.

[0168] The lateral length of the storage portion 340 is greater than the lateral length of the vertical cue 310. Optionally, the lateral length of the storage portion 340 is three, four, or five times greater than the lateral length of the vertical cue 310. In this way, the storage portion 340 effectively abuts against the vehicle seat back, further stabilizing the child car seat 1. The storage portion 340 may have a certain curvature in the lateral direction (left and right in FIG. 8 ).

[0169] The top tether 410 has a stopper at one end in the receiving portion 340. The stopper size is such that it cannot pass through the opening 330.

[0170] The internal space of the receiving portion 340 allows one end of the top tether 410 to move a certain distance in the vertical direction. That is, the receiving portion 340 has a certain height in the vertical direction. In this manner, when the top tether 410 is pulled, the one end of the top tether 410 moves vertically, thereby operating the trigger portion 620 via the interlocking part 630 (e.g., a steel wire or cable), and the trigger portion 620 triggers the corresponding switch 520. The trigger portion 620 connected to the top tether 410 may be formed as a sheet body.

[0171] The alarm device 50 does not issue an alarm when the top tether 410 is not pulled and none of the two anchor arms 111 is fixed in a predetermined position, issues an alarm when the top tether 410 is pulled and any one of the two anchor arms 111 is not fixed in a predetermined position, and does not issue an alarm when the top tether 410 is pulled and none of the two anchor arms 111 is fixed in a predetermined position, or issues an alarm when the top tether 410 is not pulled and any one of the two anchor arms 111 is fixed in a predetermined position, and does not issue an alarm when the top tether 410 is pulled and none of the two anchor arms 111 is fixed in a predetermined position.

[0172] Fig. 9 is a perspective view of some components of a child safety seat in a fourth embodiment of the present application, Fig. 10 is a partial cross-sectional view of some components of a child safety seat in a fourth embodiment of the present application, where the trigger portion is not triggered, Fig. 11 is a partial cross-sectional view of some components of a child safety seat in a fourth embodiment of the present application, where the trigger portion is triggered, Fig. 12 is an exemplary perspective view of a child safety seat in a fourth embodiment of the present application, Fig. 13A is an exemplary perspective view of an exemplary portion of a child safety seat in a fourth embodiment of the present application, Fig. 13B is a partial cross-sectional view of a child safety seat in a fourth embodiment of the present application, Fig. 14 is an exemplary partial cross-sectional view of a child safety seat in a fourth embodiment of the present application, where the trigger portion is not triggered, and Fig. 15 is an exemplary partial cross-sectional view of a child safety seat in a fourth embodiment of the present application, where the trigger portion is triggered.

[0173] In this embodiment, the child car seat 1 includes a base 10, a seat 20, a top lever 30, a tether assembly 40, and a warning device 50. The base 10 is provided with two anchor arms 111 that protrude rearward, the seat 20 is connected to the base 10, the top lever 30 includes a lever part 350, the lever part 350 is provided at the rear of the base, the tether assembly 40 includes a top tether 410, and one end of the top tether 410 is attached to the upper rear side of the lever part 350 (see FIG. 9). The top tether 410 may be fixed to the top lever 350 (left side of the top lever 350), extend to pass through the underside, front side, and top side of the lever part 350 (i.e., wrap around nearly three-quarters of the way), and further extend away from the top part. The alarm device 50 has three switches 520 and three trigger portions 620, and if any one of the three switches 520 is not triggered, the alarm device 50 issues an alarm. The three trigger portions 620 may be provided within the top lever 350. The trigger portions 620 protrude downward from the underside of the top part of the lever part 350 to contact the top tether 410. When the top tether 410 is pulled, the top tether 410 pushes one trigger portion 620 upward, triggering one switch 520. Furthermore, when the two anchor arms 111 are fixed in place, the other two trigger portions 620 trigger the other two switches 520. The lever part 350 may be U-shaped.

[0174] In this embodiment, the configurations of the switches 520 and trigger portions 620 of the two anchor arms 111 are the same as those in the above embodiment. An opening 330 is formed in the lever member 350. The opening 330 is formed in the center of the upper part of the lever member 350. The opening 330 may be configured to face downward. The trigger portion 620 protrudes from the opening 330, and an elastic recovery member, such as a spring, is provided between the trigger portion 620 and the lever member 350 so that the trigger portion 620 protrudes from the opening 330. A mounting groove 352 may be formed in the opening 330. The mounting groove 352 is fixed on both sides to the lever member 350. The upper end of the recovery member may abut the inner surface of the mounting groove 352 and may also abut the trigger portion 620. A vertical groove or a through-hole may be formed in the trigger portion 620. Optionally, two vertical grooves or through-holes are formed symmetrically on both sides of the trigger portion 620. The position limiting part enters the groove or through-hole and limits the vertical movement range of the trigger part 620. When the trigger part 620 protrudes from the opening 330, the elastic sheet of the switch 520 is not driven, and the switch 520 is not triggered. When the trigger part 620 is operated to return to the opening 330, the elastic sheet of the switch 520 is driven, and the switch 520 is triggered.

[0175] Top tether 410 wraps around and comes into contact with trigger portion 620, thereby applying pressure to trigger portion 620 when top tether 410 is pulled. Therefore, the wrapping of top tether 410 is not limited to the above. For example, top tether 410 can wrap around the top of lever component 350, then wrap around the front and bottom of lever component 350, and then wrap around the top of lever component 350 again.

[0176] The top lever 30 further includes a cover plate 360 ​​that fits over the top of the lever part 350 and has an opening through which the top tether 410 protrudes. The cover plate 360 ​​is formed in two halves and is fixed to the top lever 30 with a fastener. The cover plate 360 ​​improves the aesthetic appearance of the top of the top lever 30 and positions the top tether 410 so that it contacts the trigger portion 620. The gap between the cover plate 360 ​​and the lever part 350 is configured to allow the top tether 410 to advance along the opening in the cover plate 360 ​​but to prevent the top tether 410 from sliding onto the cover plate 360.

[0177] 13A and 13B, the top tether 410 includes an adjustable strap 411 and a connecting strap 412. The connecting strap 412 is connected to the lever element 350 and the adjuster 430, and the adjustable strap 411 is connected to the tether fixing part 450 and the adjuster 430. One end of the adjustable strap 411 enters the adjuster 430 and extends from the adjuster 430 to form a free end (not shown). The adjuster 430 can lock and release the adjustable strap 411 (for example, by pressing a button) that passes through it. When the adjuster 430 releases the adjustable strap 411, the length of the adjustable strap 411 can be extended by pulling the adjustable strap 411, and the free end can be pulled to shorten the length of the adjustable strap 411.

[0178] FIG. 16 is a perspective view of a child car seat in a fifth embodiment of the present application, with some parts removed to show the interior of the child car seat, and FIG. 17 is another perspective view of a child car seat in a fifth embodiment of the present application, with some parts removed to show the interior of the child car seat.

[0179] The child car seat in this embodiment includes a base 10, a seat 20, and a tether assembly 40, the seat 20 is connected to the base 10, and the seat 20 includes a backrest 230, a reinforcing tube 231 is formed at the top end of the backrest 230, and spacer rings 2311 are formed on both sides of the reinforcing tube 231, respectively, the tether assembly 40 includes a top tether 410 and a tether fixing portion (not shown), the top tether 410 is connected to both sides of the lower end of the backrest 230, extends upward along the backrest 230 and passes through the spacer rings 2311.

[0180] The top tether 410 can be connected to a flexible part (not shown) of the backrest 230. The top tether 410 is provided on the inside of the backrest 230 (the side facing the child sitting in the child car seat) and extends away from the backrest 230 via a spacer ring 2311. Because the end of the top tether 410 is connected to the flexible part, when stress is applied, the plastic deforms, acting as a buffer and reducing stress on the tether fixing part. In addition, as the top tether 410 extends upward from the lower end of the back, the length of the top tether 410 becomes longer, and when force is applied, the tether itself has a certain degree of stretch, which also acts as a certain buffer.

[0181] Figure 18 is a perspective view of a child car seat in the sixth embodiment of the present application, Figure 19 is a perspective view of some parts of the child car seat in the sixth embodiment of the present application, Figure 20 is a perspective view of some parts of the child car seat in the sixth embodiment of the present application, where some parts have been removed to show the inside of the child car seat, Figure 21 is a plan view of the child car seat in the sixth embodiment of the present application when the top tether is not pulled, Figure 22 is a plan view of the child car seat in the sixth embodiment of the present application when the top tether is pulled, and Figure 23 is another perspective view of some parts of the child car seat in the sixth embodiment of the present application.

[0182] In this embodiment, the child car seat includes a base 10, a seat 20, a top lever 30, a tether assembly 40, and an alarm device 50. The base 10 is provided with an anchor portion 110 that protrudes rearward, the seat 20 is connected to the base 10, the top lever 30 includes a lever part 350 and a storage part 340, the lever part 350 is provided at the rear of the base, the storage part 340 is provided at the top of the lever part, the tether assembly 40 includes a top tether 410 and a tether fixing part 450, the top tether is fitted onto the top of the lever part, and the alarm device 50 can issue an alarm based on whether the top tether is pulled and whether the anchor portion is fixed in place. The lever part 350 may be formed as a U-shaped lever.

[0183] The alarm device 50 includes a main body 510, a plurality of switches 520, and an alarm 530. The main body 510 determines whether to issue an alarm, the plurality of switches 520 are electrically connected to the main body and provide signals to the main body, and the alarm 530 issues an alarm when the main body determines that an alarm should be issued.

[0184] Optionally, top tether 410 is fitted onto the upper part of lever component 350, and housing 340 limits the range of movement of top tether 410 on lever component 350. As shown in FIG. 20 , top tether 410 is divided into two bands at the upper part of lever component 350 to form a ring shape, thereby bypassing lever component 350 and combining into one band at the lower part of lever component 350. One end of top tether 410 is provided in the internal space (mounting groove 352) of housing 340 and further has trigger portion 620. Trigger portion 620 can move vertically a certain distance within mounting groove 352. A longitudinal hole is formed in the center of trigger portion 620, and one end of top tether 410 is fixed to the longitudinal hole, allowing trigger portion 620 to move in response to movement of top tether 410. An elastic recovery element 640 (e.g., a spring) is provided in the housing 340, with both ends connected to the housing 340 and one side of the trigger portion 620, respectively. In this embodiment, the elastic recovery elements 640 are connected to both the left and right sides of the trigger portion 620. Other numbers of elastic recovery elements 640 may also be provided. One switch 520 is further provided in the internal space of the housing 340. The switch 520 may be provided on one side of the vertical movement path of the trigger portion 620, and a portion of a sheet body on the switch 520 may be located on the movement path. When the top tether 410 is pulled (i.e., when the top tether 410 is pulled outward), the trigger portion 620 presses the sheet body on the switch 520, triggering the switch 520 (see FIGS. 21 and 22 ). This switch 520 then provides a signal to the main body. This signal indicates that the tether assembly 40 is fixed in place. The configuration of the other switches among the multiple switches 520 refers to the above-described embodiments. Figure 24 is a side view of some components of a child car seat in the seventh embodiment of the present application, where the tether fixing portion is separated from the top tether, and Figure 25 is an exemplary cross-sectional view of some components of a child car seat in the seventh embodiment of the present application.

[0185] In this embodiment, a through-hole 351 may be formed in the upper portion of the lever component 350 (i.e., openings are formed on the upper and lower surfaces of the lever component 350). One end of a top tether 410 (not shown) passes through the through-hole 351 and is installed in the internal space (mounting groove 352) of the housing 340. The top tether 410 has a trigger portion 620. A switch 520 is also installed in the internal space of the housing 340, and one end of the top tether 410 is connected to the trigger portion 620 (see the sixth embodiment for the connection method). Pulling the top tether 410 (i.e., pulling the top tether 410 from the mounting groove 352 through the through-hole 351) moves the trigger portion 620 upward. The switch 520 is installed at the rear side (left side in FIG. 25 ) of the mounting groove 352, and at least a portion of the sheet body of the switch 520 is located in the upward movement path of the trigger portion 620. When the trigger portion 620 moves upward, it presses the sheet body of the switch 520, triggering the switch 520, which then provides a signal to the main portion 510. The signal indicates that the tether assembly 40 is fixed in place. A flexible part 341 is provided in the accommodation portion 340, and the flexible part 341 is provided inside the through-hole and joined to the upper end of the flexible part 341 to prevent the top tether 410 from directly contacting the inside of the through-hole. In other words, when the top tether 410 moves in the through-hole 351, the top tether 410 contacts the flexible part 341 without directly contacting the lever part 350 (usually made of metal). For the configuration of the other switches among the plurality of switches 520, refer to the above embodiments.

[0186] An elastic recovery component (e.g., a spring) 640 is provided in the housing portion, and the elastic recovery component 640 is provided between the housing portion 340 and the trigger portion 620, thereby applying a force to the trigger portion that prevents the trigger portion 620 from triggering the switch 520 (i.e., restores the trigger portion 620 to its initial state below).

[0187] Other details of this embodiment are almost the same as those of the sixth embodiment. FIG. 26 is a perspective view of the top surface of the base and top lever of the child car seat of the present application, and FIG. 27 is a perspective view of the bottom surface of the seat of the child car seat of the present application.

[0188] The base 10 includes a ring portion 120. The seat 20 includes a ring portion 220. The ring portions 120 and 220 correspond to each other. The base 10 and the seat 20 are connected to each other via a connecting shaft at the center of the ring portions 120 and 220, and the seat 20 can rotate relative to the base 10. The ring portions 120 and 220 of the base 10 and the seat 20 are provided with a base reinforcement part 121 and a seat reinforcement part 221 that lock together to strengthen the connection between the base 10 and the seat 20. When the seat 20 rotates to a specific use angle relative to the base 10, for example, 0° or 180° (corresponding to the forward use position and rearward use position of the seat 20), the base reinforcement part 121 and the seat reinforcement part 221 are joined to each other to achieve a reinforcement function.

[0189] Four base reinforcement parts 121 and four seat reinforcement parts 221 are provided on the ring portion 120 of the base 10 and the ring portion 220 of the seat 20, respectively. The four base reinforcement parts 121 are evenly spaced around the circumference of the ring portion 120 of the base 10. The four seat reinforcement parts 221 can be provided at positions corresponding to the four base reinforcement parts 121. That is, the four seat reinforcement parts 221 are also evenly spaced around the circumference of the ring portion 220 of the seat 20. One base reinforcement part 121 and one seat reinforcement part 221 are provided on one side (rear side) of the ring portions 120, 220 closer to the top lever 30, and the length extending around the circumference of the ring portions 120, 220 is longer than the other three base reinforcement parts 121 and seat reinforcement parts 221. Another base reinforcement element 121 and another sheet reinforcement element 221 are provided on the front side of the ring portion 120, 220, and their circumferential lengths are shorter than those of the rear base reinforcement element 121 and sheet reinforcement element 221, but longer than those of the left and right side base reinforcement elements 121 and sheet reinforcement elements 221. The base reinforcement element 121 and sheet reinforcement element 221 may be, for example, made of iron pieces, but the present invention is not limited thereto. The number of base reinforcement elements 121 and sheet reinforcement elements 221 may be different, for example, five, six, or eight, but the present invention is not limited thereto. The base reinforcement elements 121 and sheet reinforcement elements 221 may be distributed uniformly or non-uniformly along the ring portion 120, 220.

[0190] When the child seat 1 receives an impact, the force of reversing the child seat 1 in the front-rear direction becomes the largest, so the longest base reinforcing part 121 and seat reinforcing part 221 are provided on the rear side to improve the ability to withstand the forward reversing force, and the comparatively long base reinforcing part 212 and seat reinforcing part 221 are provided on the front side to improve the ability to withstand the backward reversing force.

[0191] Figure 28 is a perspective view of the top of another embodiment of the base of the child car seat of the present application, Figure 29 is a perspective view of the top of another embodiment of the base of the child car seat of the present application, with some parts removed, and Figure 30 is a perspective view of the bottom of another embodiment of the seat of the child car seat of the present application.

[0192] The base 10 includes a ring portion 120. The seat 20 includes a ring portion 220. The base 10 and the seat 20 are connected to each other via a connecting shaft located at the center of the ring portions 120 and 220, and the seat 20 can rotate relative to the base 10. The ring portions 220 of the seat 20 are each provided with a reinforcing member 221 that locks with the ring portion 120 of the base 10. In this embodiment, the reinforcing member 221 can be bonded to the ring portion 120 of the base 10 even when the seat 20 and the base 10 form any angle. In other words, when the seat 20 rotates relative to the base 10, the reinforcing member 221 slides circumferentially along the ring portion 120. In this way, the bond between the seat 20 and the base 10 can be strengthened even when the angle of use of the seat 20 is adjusted.

[0193] Various numbers of reinforcing elements 221 can be provided, such as 2, 3, 4, 5, 6, 8, etc. The multiple reinforcing elements 221 can be provided at different positions on the ring portion 220. As shown in FIG. 30, two reinforcing elements 221 are provided at the front and rear of the ring portion 220, respectively. This is based on the force of the child car seat in the event of an impact. Optionally, the multiple reinforcing elements 221 can have the same length and thickness to provide the same degree of reinforcement in different directions, or different lengths and thicknesses to provide different degrees of reinforcement in different directions.

[0194] FIG. 31 is a side view of one embodiment of the child car seat of the present application, and FIG. 32 is a plan view of one embodiment of the child car seat of the present application.

[0195] The child seat 1 includes a base 10, a seat 20 provided on the base 10, and a top lever 30 erected at the rear of the base 10.

[0196] The base 10 may include an anchor portion 110 that protrudes rearward. The anchor portion 110 may be an ISOFIX-type connector (a connector that can be fixed to an ISOFIX interface) and includes two anchor arms 111.

[0197] The child car seat 1 may include a tether assembly 40. Optionally, the tether assembly 40 may also be a separate assembly other than the child car seat 1. The tether assembly 40 may be a Top Tether type connector (a connector that can be fixed to a Top Tether interface).

[0198] The top lever 30 may be fixed to the rear of the base 10. Specifically, the top lever 30 may stand upright approximately vertically at the rear of the base 10. An opening 330 is provided at the top of the top lever 30. In different embodiments, one or two openings 330 may be provided in the top lever 30. A top tether 410 (described in detail below) of the tether assembly 40 is fixed to the child car seat 1 through the opening 330. For example, the top tether 410 enters the top lever 30 through the opening 330 and is fixed thereto.

[0199] In one embodiment, the top lever 30 includes two vertical cues 310 and one fixed portion 320, and openings 330 are provided at the tops of the two vertical cues 310.

[0200] One end of two bands (e.g., a connecting band 412 and an adjustable band 411) of the top tether 410 is fixed to the top lever 30 via two vertical cues 310. One connecting band 412 and two adjustable bands 411 of the top tether 410 are connected to each other via two adjusters 430, and a tether fixing portion 450 is fixedly or movably connected to one adjustable band 411, so that the entire tether assembly 40 is formed into a Y or V shape. One end of the above bands can move a certain distance on the top lever 30.

[0201] One end of two bands (e.g., two connecting bands 412) of the top tether 410 is fixed to the top lever 30 via two vertical cues 310. Two adjusters 430 are fixed to the other ends of the two bands. Both ends of one adjusting band 411 pass through the two adjusters 430 to form two free ends 4111, respectively, and a tether fixing portion 450 is fixedly or movably connected to the adjusting band 411, so that the entire tether assembly 40 is formed into a Y-shape or a V-shape.

[0202] One end of two straps (e.g., two connecting straps 412) of the top tether 410 is fixed to the top lever 30 via two vertical cues 310, respectively. A connecting part 460 is fixed to the other end of the two straps. One end of one adjustable strap 411 is fixed to the connecting part 460. The other end of the adjustable strap 411 passes through one adjuster 430, and the other adjustable strap 411 passes through the other adjuster 430, thereby forming two free ends 4111, and the entire tether assembly 40 is formed into a Y shape or a V shape. The two adjusters 430 can be connected to each other (e.g., via the connecting strap 412).

[0203] In one embodiment, both ends of one strap (e.g., connecting strap 412) of the top tether 410 are fixed to the top lever 30 via two vertical cues 310. The adjustable strap 411 is fixedly or slidably connected to the strap (optionally, other adjustable straps 411, connecting strap 412, and b adjuster 430 are connected), so that the entire tether assembly 40 is formed in a T-shape.

[0204] In one embodiment, as shown in FIG. 36, the top lever 30 includes two vertical cues 310 and one fixed portion 320.

[0205] Specifically, the top lever 30 includes two vertical cues 310 and a fixed part 320. The two vertical cues 310 are erected symmetrically at the rear of the base 10, the fixed part 320 is connected to the top ends of the two vertical cues 310, and a storage part 340 is provided in the center of the underside of the fixed part 320.

[0206] One end of one of the bands of the top tether 410 (for example, the connecting band 412) may be fixed to the top lever 30. The one end of the band can move a certain distance on the top lever 30.

[0207] In one embodiment, as shown in FIG. 37, the top lever 30 includes one vertical cue stick 310 and one storage section 340.

[0208] One end of one of the bands (e.g., the connecting band 412) of the top tether 410 may be fixed to the top lever 30. The end of the band can move a certain distance in the receiving portion 340. In the present application, two adjusters 430 can be switched to one bidirectional adjuster 440 (described below). One adjuster 430 can be switched to one bidirectional adjuster 440.

[0209] The vertical cue 310 and the fixed part 320 may be made of different materials, for example, the vertical cue 310 is made of metal and the fixed part 320 is made of plastic.

[0210] The seat 20 is rotatably mounted on the base 10 and can rotate within a certain angular range relative to the base 10 along a position axis perpendicular to the upper surface of the base 10. The lower and upper surfaces of the base 10 form a certain angle, causing the seat 20 to tilt forward.

[0211] FIG. 38 is a schematic diagram of one embodiment of the tether assembly of the present application.

[0212] The tether assembly 40 includes at least two adjusters 430, a top tether 410, and a tether fixing portion 450. The top tether 410 is fixed to the child car seat 1 and passes through the at least two adjusters 430 to form free ends 4111, the number of which is the same as the number of the at least two adjusters. The tether fixing portion 450 is connected to the top tether 410 and fixed to the vehicle. Any of the at least two adjusters 430 can lock or release the top tether 410 passing through it.

[0213] In one embodiment, the tether assembly 40 has two adjusters 430. However, the tether assembly 40 may have three or more adjusters 430. 42 , the connecting strap 412 enters the adjuster 430 from one side, then bypasses the fixing portion of the adjuster 430 and extends from the bottom of the adjuster 430. In this manner, the connecting strap 412 is fixed to the adjuster 430. The adjustable strap 411 (e.g., connected to the tether fixing portion 450) enters the adjuster 430 from an opening on the bottom of the adjuster 430, bypasses part of the button 432, passes downward through the button 432, forming a gap between the button 432 and the adjuster case 431, and finally extends from the left side of the adjuster 430 to form a free end 4111. When the button 432 is pressed to the right, the gap between the button 432 and the adjuster case 431 becomes larger, allowing the adjustable strap 411 to move freely relative to the adjuster 430. When button 432 is released, the gap between button 432 and adjuster case 431 becomes smaller (e.g., due to the elasticity of a spring), so that adjustment strap 411 is clamped (locked) by button 432 and adjuster case 431 and cannot move freely relative to adjuster 430.

[0214] FIG. 34 is a plan view of the adjuster of the tether assembly of the present application, and FIG. 35 is a perspective view of the adjuster of the tether assembly of the present application.

[0215] In one embodiment, one end of the adjuster 430 is configured as an adjustment end, which may be configured as, for example, a button.

[0216] In another embodiment, adjuster 430 includes adjuster case 431 and button 432. One side of button 432 has an opening, for example, the opening is above or below button 432. A tether (e.g., adjustable strap 411 below) enters button 432 from the opening, passes through a slit of variable width defined by button 432 and case 431, and extends out from the opening.

[0217] The adjuster 430 may include a restoring mechanism, such as a spring, such that when the button 432 is not pressed, the slit tends to contract, thereby locking the tether passing through the adjuster 430 and preventing it from moving relative to the adjuster 430. When the button 432 is pressed, the slit tends to expand, thereby allowing the tether passing through the adjuster 430 to move relative to the adjuster 430.

[0218] The adjuster 430 can also have other configurations, for example, the tether can enter from one side of the adjuster 430 and extend from the other side. The structure of the adjuster 430 is not limited here, as long as the adjuster allows for adjusting the length of the tether passing through it and has the ability to lock the tether when no adjustment is required.

[0219] The other side of the adjuster 430 is provided with a fixing portion, by which another tether is fixedly connected to the adjuster 430 .

[0220] An opening is formed in the adjuster 430 to expose a marking that indicates whether the adjuster 430 is locked or unlocked, for example, a marking having a different color.

[0221] The tether fixing portion 450 may be a hook (or a hook-shaped anchor part), which is fixedly or slidably provided on the distal end of the top tether 410 .

[0222] The two adjusters 430 of the tether assembly 40 may be arranged in opposite directions, and the two free ends 4111 formed when the top tether 410 passes through the two adjusters 430 may extend in opposite directions. Note that because the top tether 410 is flexible, the direction of the adjuster 430 provided on the top tether 410 may change. The arrangement of the two adjusters 430 in opposite directions means that the two adjusters 430 are arranged in approximately opposite directions when the tether assembly 40 is pulled after the tether assembly 40 secures the child car seat 1 to the vehicle. The arrangement of the two free ends 4111 in opposite directions means that the initial directions of the two free ends 4111 when they extend from the two adjusters 430 are approximately opposite after the tether assembly 40 secures the child car seat 1 to the vehicle, and the two free ends 4111 are, for example, in a hanging position due to gravity. Optionally, the tether assembly 40 has only one adjuster 430 .

[0223] The two adjusters 430 of the tether assembly 40 may be arranged along the same direction, and the two free ends 4111 formed by the top tether 410 passing through the two adjusters 430 extend along the same direction.

[0224] 38, in one embodiment, top tether 410 includes first adjustable strap 411a, second adjustable strap 411b, first adjuster 430a, second adjuster 430b, and connecting strap (also referred to as first connecting strap) 412. First adjustable strap 411a, second adjustable strap 411b, and connecting strap 412 are connected to each other (e.g., directly or via first adjuster 430a and second adjuster 430b) to form top tether 41.

[0225] One end of the connecting strap 412 is fixed to one side of the top lever 30 (for example, the inside of one vertical cue 310), and the other end of the connecting strap 412 is fixed to the first adjuster 430a.

[0226] One end of the first adjustable strap 411a is fixed to the other side of the top lever 30 (e.g., inside the other vertical cue 310), and the other end of the first adjustable strap 411a passes through the second adjuster 430b to form one free end 4111 that extends over the child seat 1.

[0227] One end of the second adjustable strap 411b is fixed to the second adjuster 430b, and the other end of the second adjustable strap 411b passes through the first adjuster 430a to form one free end 4111 that projects away from the child car seat 1.

[0228] One end of the tether fixing part 450 is slidably or fixedly connected to the second adjustable strap 411b, and the other end of the tether fixing part is formed as a hook.

[0229] In this way, the tether assembly 40 can be pulled in two opposite directions, which makes it easier to attach the tether assembly 40 and apply tension, thereby ensuring tension and improving the safety of the tether assembly 40. Furthermore, the length of the tether assembly 40 can be adjusted to a large extent.

[0230] Optionally, in this embodiment, top tether 410 may have only one adjuster 430. Optionally, in this embodiment, top tether 410 has three adjusters 430. Optionally, adjuster 430 is a bidirectional adjuster (described below).

[0231] As shown in FIG. 39, in one embodiment, the top tether 410 has a first adjustable strap 411a, a second adjustable strap 411b, a first adjuster 430a, a second adjuster 430b, a first connecting strap 412a, and a second connecting strap 412b.

[0232] Both ends of the first connecting band 412a are fixed to both sides of the top lever 30, respectively, and for example, are fixed on or inside the two vertical cues 310, respectively.

[0233] One end of the first adjustable strap 411a is slidably or fixedly connected to the first connecting strap 412a, and the other end of the first adjustable strap 411a passes through the first adjuster 430a to form one free end 4111 that extends over the child seat 1.

[0234] Both ends of the second connecting band 412b are fixed to the first adjuster 430a and the second adjuster 430b, respectively.

[0235] One end of the second adjustable strap 411b passes through the second adjuster 430b to form a free end 4111 that extends away from the child seat 1, and a tether fixing portion 450 is fixed to the other end of the second connecting strap 412b.

[0236] In this manner, the tether assembly 40 takes up less space and facilitates installation in relatively narrow vehicle bodies. Optionally, in this embodiment, top tether 410 may have only one adjuster 430. Optionally, in this embodiment, top tether 410 has three adjusters 430. Optionally, one adjuster 430 may be a bidirectional adjuster (described below).

[0237] 40, the tether assembly further includes a connecting part 460, which is used to connect two connecting straps 412 and one adjustable strap 411. The two connecting straps 412 may be fixed to one side of the connecting part 460, and the one adjustable strap 411 may be fixed to the other side of the connecting part 460. The connecting part 460 may be a piece of iron with three elongated holes formed on the top surface.

[0238] Optionally, in this embodiment, top tether 410 may have only one adjuster 430. Optionally, in this embodiment, top tether 410 has three adjusters 430. Optionally, one adjuster 430 may be a bidirectional adjuster (described below).

[0239] FIG. 41 is a schematic diagram of another embodiment of the tether assembly of the present application.

[0240] The tether assembly 40 has a first adjuster 430a, a second adjuster 430b, and one adjustable strap 411. The first adjuster 430a and the second adjuster 430b are arranged along the same direction. Both ends of the adjustable strap 411 pass through the first adjuster 430a and the second adjuster 430b, respectively, to form two free ends 4111 that protrude in the same direction (away from the child car seat). The first adjuster 430a and the second adjuster 430b pass through a connecting strap 412 and are fixed to both sides of the top lever 30, respectively. A tether fixing portion 450 is slidably connected to the adjustable strap 411.

[0241] In this way, when the child car seat 1 is attached to both the right and left seats of a vehicle, the tether assembly 40 can be adjusted using the adjuster closer to one side, making it convenient to apply force. Adjustment using two adjusters has the same effect. In addition, two adjusters allow the length of the tether assembly 40 to be adjusted over a wider range.

[0242] Optionally, in this embodiment, top tether 410 may have only one adjuster 430. Optionally, in this embodiment, top tether 410 has three adjusters 430. Optionally, one adjuster 430 may be a bidirectional adjuster (described below).

[0243] 43 is a schematic diagram of an embodiment of a tether assembly 40 of a child car seat according to the present invention. The tether assembly 40 includes a top tether 410, an adjuster 430, and a tether fixing portion 450. The top tether 410 includes an adjustable strap 411 and a connecting strap 412. The adjustable strap 411 passes through the adjuster 430 and projects as a free end 4111. The adjuster 430 has a button. When the button is not pressed, the adjuster 430 locks the adjustable strap 411; when the button is pressed, the adjuster 430 releases the adjustable strap 411. At this time, the length of the adjustable strap 411 can be shortened by pulling the free end 4111, and the length of the adjustable strap 411 can be increased by pulling the adjustable strap 411.

[0244] 44 is a schematic diagram of another embodiment of a tether assembly 40 of a child car seat of the present application. The tether assembly 40 has two adjusters 430. The two adjusters 430 are arranged in opposite directions. A top tether 410 includes two adjustable straps 411 and one connecting strap 412. The connecting strap 412 is connected between the two adjusters 430. The two adjustable straps 411 pass through the two adjusters 430 to form two free ends 4111 facing in opposite directions, allowing the length of the tether assembly 40 to be adjusted in two opposite directions by pulling the two free ends 4111.

[0245] In one embodiment, the tether anchor 450 is anchored to the end of one of the two adjustable straps 411. The other end of the two adjustable straps 411 is anchored to the top lever 30.

[0246] In another embodiment, the tether anchor 450 is rotatably connected to one of the two adjustable straps 411. The other of the two adjustable straps 411 is fixed to the top lever 30.

[0247] In another embodiment, the tether assembly 40 further includes a bidirectional adjuster 440. The bidirectional adjuster 440 can adjust the length of the tether assembly 40 in two opposite directions. That is, two adjustable straps 411 pass through the bidirectional adjuster 440 from both ends to form two free ends 4111 facing in opposite directions, so that the length of the tether assembly 40 can be adjusted in two opposite directions by pulling the two free ends 4111.

[0248] Figure 45 is a schematic diagram of another embodiment of a tether assembly for a child car seat of the present application, and Figure 46 is a schematic diagram of another embodiment of a tether assembly for a child car seat of the present application. The embodiment shown in Figures 45 and 46 is similar to the embodiment shown in Figures 43 and 44, except that a bidirectional adjuster 440 switches between two adjusters 430 and a connecting band 412.

[0249] Figure 47 is a perspective view of the bidirectional adjuster of the child car seat of the present application, Figure 48 is another perspective view of the bidirectional adjuster of the child car seat of the present application, Figure 49 is a cross-sectional view of the bidirectional adjuster of the child car seat of the present application, where the button is not pressed, Figure 50 is a cross-sectional view of the bidirectional adjuster of the child car seat of the present application, where the button is pressed, Figure 51 is a cross-sectional view of the bidirectional adjuster of the child car seat of the present application, Figure 52 is a top view of the bidirectional adjuster of the child car seat of the present application, where the button is not pressed, Figure 53 is a bottom view of the bidirectional adjuster of the child car seat of the present application, where the button is not pressed, Figure 54 is a top view of the bidirectional adjuster of the child car seat of the present application, where the button is pressed, and Figure 55 is a cross-sectional view of the bidirectional adjuster of the child car seat of the present application.

[0250] The bidirectional regulator 440 includes a regulator case 441, two buttons 442, a fixing sheet 443, and two locking members 444. The regulator case 441 has two first openings facing opposite directions. The two buttons 442 are respectively provided in the two first openings and can move along the advancing direction of the regulator case 441. The fixing sheet 443 is fixed to the bottom of the regulator case 441 and forms two second openings. The two locking members 444 are provided inside the regulator case 441 and move together with the two buttons 442. This forms a locked position and a released position, where the two bands (e.g., top tether 410) enter the adjuster case 441 through the two second openings, pass through the gap between the two locking parts 444 and the fixed sheet 443, protrude from the adjuster case 441, and form two free ends extending in opposite directions; further, where, in the locked position, the two locking parts 444 and the fixed sheet 443 clamp the two bands, respectively, and in the released position, the two locking parts 444 and the fixed sheet 443 allow the two bands to move.

[0251] A spring is provided between the two buttons 442 to provide a restoring force to the two buttons 442 against the regulator case 441 . Two tension indicator windows 445 are formed on the top surface of the regulator case 441, which can respectively indicate whether tension is applied to the two bands. Different positions on the top surfaces of the two buttons 442 can be marked with different colors. Thus, when the button 442 is in the locked position, the tension indicator window 445 displays one color (e.g., green) of the top surface of the button 442, and when the button 442 is in the released position, the tension indicator window 445 displays the other color (e.g., red) of the button 442. Optionally, the tension indicator window 445 may be provided at other positions on the regulator case 441, such as the side, bottom, and both ends, and the present application is not limited thereto. The tension indicator window 445 can also use other methods to provide information, such as lines or graphic marks, and the present application is not limited thereto. The tension indicator window 445 can also be formed of a transparent material to allow observation of the interior of the regulator case 441.

[0252] The bidirectional adjuster 440 allows for adjustment of the length of the top tether 410 in different directions.

[0253] As shown in Figure 55, when the top tether 410 passes through the bidirectional adjuster 440, it first enters the adjuster case 441 upward through the opening in the locking part 444, then passes upward inside the fixing sheet 443 and the button 442 (center of Figure 55), then bypasses the fixing sheet 443, extends downward from the outside of the fixing sheet 443 (the two left and right sides of Figure 55), passes through the gap between the fixing sheet 443 and the locking part 444, and finally protrudes out from the adjuster case 441 below the locking part 444.

[0254] In this way, when the top tether 410 is pulled, the top tether 410 is clamped between the locking part 444 and the fixing sheet 443 (when the adjustable strap 411 is pulled, the top tether 410 pulls the fixing sheet 443 outward, and the fixing sheet 443 moves closer to the locking part 444), thereby fixing the position of the top tether 410; when the length of the top tether 410 needs to be adjusted, the button 442 is pressed to move the fixing sheet 443 away from the locking part 444, and the top tether 410 is released and its length can be adjusted.

[0255] When the bidirectional adjuster 440 is used, two top tethers 410 passing through the bidirectional adjuster 440 enter the top lever 30 respectively and are connected to the tether fixing portion 450, thereby realizing a tether assembly 40 whose length can be adjusted along different directions.

[0256] 56 to 58, a child car seat 200 of the present invention includes a seat 201 and a child car seat support structure 100. The child car seat support structure 100 includes a base 1a, a top lever 2, and a top tether 3, an attachment position for attaching the seat 201 is provided in the base 1a, the top lever 2 is fixed to the base 1a and is located on one side of the attachment position, one end of the top tether 3 is fixed to the top lever 2, and the seat 201 is attached to the attachment position. When the seat 201 is attached to the installation position in the forward direction, the top lever 2 is located behind the seat 201, and after the child seat 200 is attached to the car seat, that is, after the base 1a and the top tether 3 are respectively connected to the corresponding positions on the car seat, the top lever 2 is closer to the car seat, and the distance between the top lever 2 and the car seat is shorter than the distance between the seat 201 and the car seat. Therefore, the length of the top tether 3 fixed to the top lever 2 and connected to the corresponding position on the car seat is shorter than the length required to fix the top tether 3 of the seat 201 in the conventional case, and the top tether 3 When the seat 201 is attached to the attachment position in the reverse direction, the attachment position of the base 1a does not change and it is attached in the direction of the seat 201. At this time, the top lever 2 and the top tether 3 are located in front of the seat 201, and the attachment path where the top tether 3 is connected to the corresponding position on the car seat is the same as the attachment path of the top tether 3 when the seat 201 is attached to the attachment position in the forward direction. Compared with the conventional top tether 3 fixed to the seat 201, the attachment path where the top tether 3 is connected to the corresponding position on the car seat does not interfere with the passenger on the seat 201.

[0257] Referring to Figures 58 to 59, in this embodiment, the top lever 2 includes a support tube portion 21 and a rail portion 22, the support tube portion 21 has a hollow structure, the support tube portion 21 is fixed to the base 1a, the rail portion 22 is attached to the support tube portion 21, one through hole 221a is provided in the rail portion 22, the through hole 221a is connected to the inside of the support tube portion 21, and one end of the top tether 3 passes through the through hole 221a and is fixed to the inner wall of the support tube portion 21; this is not limited to this, and for example, the top tether 3 is provided directly on the surface of the rail portion 22, or the top tether 3 is connected inside the support tube portion 21. Specifically, there are two support pipes 21, the two support pipes 21 are fixed to the base 1a with a gap between them, a rail 22 is fixed to the two support pipes 21, the rail 22 is provided with two through holes 221a, the two through holes 221a are connected to the interiors of the two support pipes 21, the top tether 3 has a fixing portion 31 and an attachment portion 32 formed by the intersection of the two fixing portions 31, the two fixing portions 31 pass through the two through holes 221a respectively and are fixed within the two support pipes 21, and the attachment portion 32 is connected to the car seat. The numbers of support pipes 21 of the top lever 2 and fixing portions 31 of the top tether 3 are not limited thereto, and there may be one or three support pipes 21, and the number of fixing portions 31 of the top tether 3 may be one or three.

[0258] 59, the child car seat 200 includes a first connecting part 4, which passes through the support pipe 21, and a webbing loop 311 is provided at one end of the top tether 3, which is fitted onto the outside of the first connecting part 4, where the first connecting part 4 may utilize a bolt or the like. The manner in which the top tether 3 is fixed to the support pipe 21 is not limited thereto, and for example, the top tether 3 may be directly fixed to the support pipe 21 with a rivet, or, for example, one end of the top tether 3 may be engaged with and connected to the support pipe 21. In this embodiment, the child car seat 200 further includes a second connecting part 5, in which the rail part 22 is provided with a first connecting hole 222 and the support pipe part 21 is provided with a second connecting hole 211, and the second connecting part 5 passes through the first connecting hole 222 and the second connecting hole 211 to fix the rail part 22 to the support pipe part 21. The provision of the second connecting part 5 facilitates production and installation of the top lever 2 and facilitates removal and replacement of the support pipe part 21 and the rail part 22. Here, the second connecting part 5 may be a bolt or the like.

[0259] Referring to FIG. 57 , a first fixing component (not shown) is provided at the other end of the top tether 3 to store the top tether 3. The base 1a is provided with a storage position 11 for storing the top tether 3, and the first fixing component is detachably connected to the storage position 11. Specifically, the storage position 11 has an internal concave structure and is formed with a storage groove for storing the top tether 3. The base 1a is provided with a second fixing component (not shown) located at the storage position 11, and the first fixing component is detachably connected to the second fixing component. One of the first fixing component and the second fixing component has a male fastener structure, and the other of the first fixing component and the second fixing component has a female fastener structure. In this embodiment, the first fixing component has a male fastener structure, and the second fixing component has a female fastener structure, but this is not limiting. Here, the first fixing component and the second fixing component may be connected using conventional Velcro (registered trademark), buttons, etc.

[0260] 60 to 62, in this embodiment, the base 1a includes a case 12 and a bracket 13, the bracket 13 is provided inside the case 12, and the top lever 2 passes through the case 12 and is fixedly connected to the bracket 13. The child car seat 200 includes a reinforcing sheet 6 for strengthening the strength of the top lever 2, and the reinforcing sheet 6 is fixedly connected to the base 1a and the top lever 2, respectively. Here, the reinforcing sheet 6 may be formed by the bracket 13 of the base 1a extending upward, and the reinforcing sheet 6 protrudes from the case 12 and is connected to the support tube portion 21 of the top lever 2. The structure of the reinforcing sheet 6 is not limited thereto, and the reinforcing sheet 6 may be an independent component, and the reinforcing sheet 6 is connected to the base 1a and the top lever 2, respectively. The provision of the reinforcing sheet 6 improves the strength of the top lever 2 and prevents the top lever 2 from being broken due to excessive force applied to it. In this embodiment, the reinforcing sheet 6 is provided along the length of the support tube 21 of the top lever 2, the bottom of the reinforcing sheet 6 is fixed to the base 1a, and the side walls of the reinforcing sheet 6 are fixedly connected to the top lever 2. In another embodiment, the bottom of the top lever 2 is thicker than the top of the top lever 2, i.e., the support tube 21 of the top lever 2 is configured so that the top is weaker and the bottom is stronger, thereby improving the strength of the top lever 2. The support tube 21 of the top lever 2 can be configured to a specific curvature along the force direction, thereby improving the strength of the top lever 2.

[0261] As described above, the child car seat 200 of the present invention has a child car seat support structure 100, one top lever 2 is fixed to the base 1a, the top lever 2 is provided on one side of the mounting position for mounting the seat 201, and one end of the top tether 3 is fixed to the top lever 2. When the seat 201 is mounted in the forward direction at the mounting position, the top lever 2 is located behind the seat 201, and after the child car seat 200 is mounted to the car seat, the distance between the top lever 2 and the car seat is shorter than the distance between the seat 201 and the car seat. Therefore, the length by which the top tether 3 fixed to the top lever 2 needs to be connected to the corresponding position on the car seat is shorter than the length required for the top tether 3 to fix the seat 201 in the conventional case, and the use of the top tether 3 is easy. The required length is reduced, reducing the material cost of the top tether 3. When the seat 201 is attached to the attachment position in the reverse direction, the attachment position of the base 1a does not change, and the attachment is in the direction of the seat 201. At this time, the top lever 2 and the top tether 3 are located in front of the seat 201, and the attachment path where the top tether 3 is connected to the corresponding position on the car seat is the same as the attachment path of the top tether 3 when the seat 201 is attached to the attachment position in the forward direction. Compared with the conventional top tether 3 fixed to the seat 201, the attachment path where the top tether 3 is connected to the corresponding position on the car seat does not interfere with the passenger on the seat 201, improving the riding comfort and comfort of the passenger on the seat 201 and preventing the passenger in the child car seat 200 from crying and making a fuss.

[0262] Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention in accordance with the general principles of the disclosure, including those within the general general knowledge or skill in the art not disclosed by the present invention. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims. Although the present invention has been described with reference to a list of exemplary embodiments, the words used are of description and illustration, rather than of limitation. Since the present invention can be embodied in various forms without departing from the spirit and essence of the invention, it should be understood that the above-described embodiments are not limited to any of the details set forth above, but should be interpreted in the broadest sense. Accordingly, all modifications that fall within the scope of the claims or their equivalents should be the subject of the claims. [Additional note 1] A child car seat attached to a vehicle seat, a base (10) including an anchor portion (110) connected to the vehicle seat; a seat (20) connected to the base; a top lever (30) fixed to the rear of the base; a tether assembly (40) including a top tether (410) and a tether fixing portion (450) connected to each other, the top tether being connected to the top lever and the tether fixing portion (450) being connected to the vehicle seat; and an alarm device (50) that includes a switch (520) and that can trigger the switch if the top tether is pulled. A child seat characterized by the above. [Additional note 2] The alarm device When the top tether is pulled and the anchor part is not fixed in a predetermined position, or when the top tether is not pulled and the anchor part is fixed in a predetermined position, an alarm is issued. The device is configured not to issue an alarm when the top tether is pulled and the anchor portion is fixed in a predetermined position, or when the top tether is not pulled and the anchor portion is not fixed in a predetermined position. Item 1. A child car seat according to item 1. [Additional note 3] The alarm device includes a main body (510) and an alarm (530), The main body (510) determines whether to issue an alarm based on whether the switch is triggered, The switch (520) is electrically connected to the main body and is capable of providing a signal to the main body; The main body determines whether to issue an alarm based on the signal; The alarm (530) executes the alarm when the main body determines to issue an alarm. Item 1. A child car seat according to item 1. [Additional note 4] The child car seat further includes a drive component (60). The driving component (60) includes at least one trigger portion (620) and at least one connection portion (610) connected to the top tether; The connection part is connected to the trigger part, and the trigger part can trigger at least one switch. 4. The child car seat according to claim 3, [Additional note 5] The connection part is provided inside the top lever and is limited to be movable within a certain distance range, and the trigger part is provided on the base. 5. A child car seat according to claim 4, [Additional note 6] the connecting portion includes a fixed part and a moving part, a through hole is formed in the moving part, the fixed part passes through the through hole, and both ends of the fixed part are fixed to the top lever, The through hole allows the moving part to move within a certain distance relative to the fixed part. 6. A child car seat according to claim 5, [Additional note 7] An opening (330) is provided at the top of the top lever, the top tether passes through the opening and a part of the top tether is provided inside the top lever, the top lever includes two vertical cues (310) and one rail (320a), the two vertical cues (310) are erected symmetrically at the rear of the base, the rail (320a) is connected to the upper parts of the two vertical cues, the openings are provided at the upper parts of each of the two vertical cues, and two top tethers pass through the openings of each of the two vertical cues and are partly provided inside the top lever; The driving component includes two of the connection portions, and the two top tethers are connected to the two connection portions, respectively. 5. A child car seat according to claim 4, [Additional note 8] The connection portion is connected to the trigger portion via an interlocking component, the trigger portion is limited to a certain range of movement and includes an elastic recovery element; the elastic recovery element is configured to apply a force that causes each of the trigger portions to not trigger a corresponding switch; The trigger portion responds to the pulling of the top tether and contacts and triggers a corresponding switch. 5. A child car seat according to claim 4, [Additional note 9] The top lever includes a vertical cue (310) and a rail (320a), the vertical cue (310) stands on the rear of the base, the rail (320a) is connected to the top end of the vertical cue, an opening is provided on the upper surface of the rail, and a receiving portion (340) is provided on the lower surface of the rail; the switch is provided in the housing portion, and one end of the top tether is fixed to the housing portion; When the top tether is pulled, pressure is applied to trigger the switch, causing the switch to provide a signal to the main body. 5. A child car seat according to claim 4, [Additional Note 10] The top tether wraps around the top lever and the trigger portion, and when the top tether is pulled, it applies pressure to the trigger portion, causing the trigger portion to move into the top lever and trigger the switch. 10. The child car seat according to claim 9, [Additional Note 11] The child car seat further includes a plurality of trigger portions, The plurality of trigger portions each trigger a corresponding switch associated therewith, and the corresponding switch provides a signal to the main body portion; one end of the top tether is connected to one of the plurality of trigger portions; The top lever includes a vertical cue (310) and a storage portion (340), the vertical cue (310) stands upright at the center of the rear of the base, the storage portion (340) is provided along the horizontal direction at the top end of the vertical cue, an opening is provided at the center of the upper surface of the storage portion, and the one end of the top tether is located in the storage portion. 4. The child car seat according to claim 3, [Additional Note 12] The horizontal length of the storage section is greater than the horizontal length of the vertical cue, A stopper (460) is provided at the one end of the top tether, and the stopper cannot pass through the opening; an internal space of the accommodating portion configured to allow the one end of the top tether to move a certain distance in a vertical direction; One of the trigger portions is formed on a sheet body, connected to the one end of the top tether via an interlocking part, and has a longitudinal through-hole. Item 12. A child car seat according to item 11. [Additional Note 13] a base (10) provided with an anchor portion (110); a seat (20) connected to the base; a top lever (30) including a lever element (350) and a receiving portion (340), the lever element being provided at the rear of the base and the receiving portion being provided in the lever element; a tether assembly (40) including a top tether (410) and a tether fixing portion (450), the top tether being attached to an upper portion of the lever component; A child seat characterized by the above. [Additional Note 14] The top tether is fitted onto an upper portion of the lever component, and the accommodation portion limits a range of movement of the top tether on the lever component; One end of the top tether is provided in the internal space of the storage part, and a trigger part is provided therein. At least one switch is further provided in the internal space of the storage part, and when the top tether is pulled, the trigger part triggers the at least one switch. Item 14. A child car seat according to item 13. [Additional Note 15] A through hole (351) is formed in the upper part of the lever part, One end of the top tether passes through the through hole and is provided in the internal space of the storage part, and a trigger part is provided, and a switch is provided in the internal space of the storage part, and the trigger part triggers the switch when the top tether is pulled. Item 14. A child car seat according to item 13. [Additional Note 16] A flexible part (341) is provided in the receiving part, and the flexible part is provided inside the through hole to avoid direct contact between the top tether and the inside of the through hole. Item 16. A child car seat according to item 15. [Additional Note 17] A child car seat including an alarm device (50), the warning device provides a warning mechanism for the safety installation of the child car seat; The alarm device includes a plurality of switches (520), a main body (510), and an alarm (530); A plurality of said switches (520) can be opened and closed, The main body (510) determines whether to issue an alarm based on the opening and closing of the plurality of switches; The alarm (530) executes the alarm when the main body determines to issue an alarm. A child seat characterized by the above. [Additional Note 18] The child car seat further includes a base (10), a top lever (30), and a tether assembly (40); The base (10) is provided with an anchor portion (110) that projects backward, the anchor portion including two anchor arms (111); The top lever (30) is fixed to the rear of the base, The tether assembly (40) is partially provided inside the top lever, The plurality of switches includes two switches that close when the two anchor arms are fixed in place, and a switch that closes when the tether assembly is tensioned. Item 18. A child car seat according to item 17. [Additional Note 19] The child car seat further includes a base (10), a top lever (30), and a tether assembly (40); The base (10) is provided with an anchor portion (110) that projects backward, the anchor portion including two anchor arms (111); The top lever (30) is fixed to the rear of the base, The tether assembly (40) includes one or two top tethers (410), and a portion of each of the two top tethers is provided inside the top lever; The plurality of switches includes two switches that are closed by two of the anchor arms being fixed in place, and two switches that are closed by pulling one or two of the top tethers. Item 18. A child car seat according to item 17. [Additional Note 20] The child seat includes a trigger portion (620), which is configured to protrude downward from a lower side of an upper portion of the top lever; The top tether wraps around the trigger portion, so that when the top tether is pulled, the top tether applies pressure to the trigger portion, and the trigger portion moves upward to trigger one of the switches. 20. The child car seat according to claim 18 or 19, [Additional Note 21] The top lever further includes a cover plate (360), the cover plate is fitted onto the top of the top lever, and has an opening through which the top tether extends and protrudes. A groove is formed in the cover plate for the trigger portion to move. An elastic recovery element is connected between the cover plate and the trigger portion to apply a tensile force. At least a portion of one of the switches is provided in the groove, and when the trigger portion moves within the groove, it triggers one of the switches. 21. The child car seat according to claim 20, [Additional note 22] One end of the top tether is fixed to the rear side of the upper part of the top lever and extends away from the upper part, passing through the underside, front side, and upper side of the top lever. 21. The child car seat according to claim 20, [Additional Note 23] Base (10) and a seat (20) rotatably connected to the base and including a backrest (230), the top end of which is formed with a reinforcing tube (231); a tether assembly (40) including a top tether (410) and a tether fixing portion connected to each other, the top tether being connected to the lower end of the backrest; The sheet has a reinforcing structure that joins with the base. A child seat characterized by the above. [Additional note 24] The base and the seat include corresponding ring portions (120, 220), and the base is connected to the seat so that the seat can rotate relative to the base. A base reinforcing part (121) and a seat reinforcing part (221) are provided, which can be connected to the ring portions of the base and the seat, respectively, to strengthen the connection force between the seat and the base. 24. The child car seat according to claim 23, [Additional note 25] The base has a plurality of base reinforcing parts, the seat has a plurality of seat reinforcing parts, the plurality of base reinforcing parts are uniformly provided around the circumference of the ring portion of the base, the plurality of seat reinforcing parts are provided at positions corresponding to the plurality of base reinforcing parts, and the plurality of base reinforcing parts have different lengths. 25. The child car seat according to claim 24, [Additional note 26] Spacer rings (2311) are formed on both sides of the reinforcing tube, and the top tether extends upward along the backrest and passes through the spacer rings. 24. The child car seat according to claim 23, [Additional note 27] A tether assembly (40) for securing a child car seat to a vehicle, comprising: an adjuster (430) for adjusting the length of the tether assembly; a tether anchoring portion (450) that is fixed to a corresponding anchoring portion of the vehicle; a top tether (410) including at least two straps and connected to the child seat and the tether fixing portion via the adjuster; At least one band of the top tether passes through the adjuster to form at least two free ends (4111). 1. A tether assembly comprising: [Additional note 28] The child car seat includes a base (10), a seat (20) mounted on the base, and a top lever (30) erected at the rear of the base. Item 28. The tether assembly according to item 27. [Additional note 29] The adjuster is a one-way adjuster, the top tether includes three bands, one end of a first band and one end of a second band of the three bands are fixed to both sides of the child car seat, and the other ends of the first band and the second band of the three bands are connected to both ends of a third band of the three bands via two one-way adjusters, respectively, the tether fixing portion is fixedly or slidably connected to any of the three bands, and the top tether forms two free ends (4111) with the two one-way adjusters. Item 28. The tether assembly according to item 27. [Additional note 30] The adjuster is a bidirectional adjuster or a unidirectional adjuster, and the at least two free ends are formed by passing the top tether through the bidirectional adjuster or the unidirectional adjuster. Item 28. The tether assembly according to item 27. [Additional Note 31] The top tether includes three belts, one end of a first belt and one end of a second belt of the three belts are fixed to both sides of the child car seat, and the other ends of the first belt and the second belt of the three belts are connected to one end of a third belt of the three belts via a connecting part (460). 31. The tether assembly according to claim 30. [Additional note 32] The top tether further includes a fourth band, the third band and the fourth band are connected to the fourth band via two one-way adjusters or one two-way adjuster, and the tether fixing portion is fixedly or slidably connected to the fourth band. 32. The tether assembly according to claim 31. [Additional note 33] The top tether includes three bands, both ends of a first band of the three bands are fixed to both sides of the child car seat, one end of a second band of the three bands is fixedly or slidably connected to the first band, one end of a third band of the three bands is connected to the other end of the second band via two one-way adjusters or one two-way adjuster, and the tether fixing portion is fixedly or slidably connected to the other end of the third band. 31. The tether assembly according to claim 30. [Additional note 34] The top tether includes two straps, one end of each of which is fixed to each side of the child car seat, and the other end of each of the two straps is connected to the adjuster, and the tether fixing portion is fixedly or slidably connected to one of the two straps, and the adjuster is a bidirectional adjuster that can adjust the length of the tether assembly along two opposite directions. Item 28. The tether assembly according to item 27. [Additional note 35] The top tether includes two straps, one end of a first strap of the two straps is fixed to the child car seat, the other end of the first strap is connected to one end of a second strap of the two straps via two one-way adjusters or one two-way adjuster, and the tether fixing portion is fixedly or slidably connected to the other end of the second strap. 31. The tether assembly according to claim 30. [Additional note 36] The two unidirectional adjusters determine positions along opposite directions, and the two unidirectional adjusters are connected by a connecting band. 36. The tether assembly according to any one of claims 32 to 35. [Additional note 37] a base (10) provided with a rearwardly extending anchor portion (110); a seat (20) connected to the base; a top lever (30) fixed to the rear of the base; and the tether assembly according to claim 27, wherein a top tether is fixed to the top lever. A child seat characterized by the above. [Additional note 38] A tether assembly (40) for securing a child car seat to a vehicle, comprising: a bidirectional adjuster that can adjust the length of the tether assembly along two opposite directions; a tether anchoring portion (450) that is fixed to a corresponding anchoring portion of the vehicle; a top tether (410) including two or more bands separated from each other, connecting the two-way adjuster to the child seat and connecting the two-way adjuster to the tether anchoring portion; 1. A tether assembly comprising: [Additional note 39] The bidirectional regulator includes a regulator case, two buttons, a fixing sheet, and two locking components; the regulator case has two first openings facing in opposite directions; The two buttons are respectively provided in the two first openings and can move along the advancing direction of the adjuster case; the fixed sheet is fixed to the bottom of the regulator case and has two second openings; The two locking components are mounted inside the regulator case and move with the two buttons to form a locked position and an unlocked position. Item 39. The tether assembly according to item 38. [Additional note 40] the two bands enter the regulator case through the two second openings, pass through gaps between the two locking parts and the fixing seat, and protrude from the regulator case, forming two free ends extending in opposite directions; In the locked position, the two locking parts and the fixing seats clamp the two bands, respectively, and in the released position, the two locking parts and the fixing seats allow the two bands to move. 40. The tether assembly according to claim 39. [Additional note 41] The top surface of the regulator case is provided with two tension indicator windows for indicating whether the two straps are tensioned. 40. The tether assembly according to claim 39. [Additional note 42] A support structure for a child car seat including a base, a top lever, and a top tether, An attachment position for attaching a seat to the base is provided, the top lever is fixed to the base and is located on one side of the attachment position, and one end of the top tether is fixed to the top lever. A child seat support structure characterized by: [Additional note 43] The top lever includes a support tube portion and a rail portion, the support tube portion is fixed to the base, and the rail portion is attached to the support tube portion. 43. The child car seat support structure according to claim 42, [Additional note 44] The support pipe portion has a hollow structure, a through hole is provided in the rail portion, the through hole is connected to the inside of the support pipe portion, and one end of the top tether passes through the through hole and is fixed to the inner wall of the support pipe portion. 44. The child car seat support structure according to claim 43, [Additional note 45] The top tether further includes a first connecting part, the first connecting part being provided to pass through the support pipe part, a webbing loop being provided at one end of the top tether, and the webbing loop being fitted onto the first connecting part. 45. A child car seat support structure according to claim 44, characterized in that: [Additional note 46] A first fixing part is provided at the other end of the top tether, a storage position for storing the top tether is provided on the base, and the first fixing part is detachably connected to the storage position. 43. The child car seat support structure according to claim 42, [Additional note 47] A second fixed part is provided on the base and positioned at the storage position, and the first fixed part is detachably connected to the second fixed part. 47. The child car seat support structure according to claim 46, [Additional note 48] The storage location forms an internal concave structure. 47. The child car seat support structure according to claim 46, [Explanation of symbols]

[0263] Child seat 1,200 Base 10, 1a Anchor part 110 Anchor Arm 111 Ring part 120 Base reinforcement parts 121 Storage position 11 Case 12 Bracket 13 Sheets 20 and 201 Ring section 220 Seat reinforcement parts 221 Backrest 230 Reinforced tube 231 Spacer Ring 2311 Top lever 30, 2 Vertical cue 310 Rail 320 Fixed part 320a aperture 330 Storage area 340 Flexible Parts 341 Lever parts 350 Through hole 351 Mounting groove 352 Cover Plate 360 Support pipe section 21 Second connection hole 211 Rail section 22 Through hole 221 First connection hole 222 Tether Assembly 40 Top Tether 410 Adjustable Belt 411 First adjustment band 411a Second Adjustable Band 411b Free end 4111 Connection band 412 First connecting band 412a Second connecting band 412b regulator 430 First regulator 430a Second regulator 430b Tether fixing part 450 Case 431 Button (adjustment end) 432 Bidirectional regulator 440 Regulator case 441 Button 442 Fixed seat 443 Lock parts 444 Tension indicator window 445 Tether fixing part 450 Connection parts 460 Alarm device 50 Main body part 510 Switch 520 Alarm 530 Drive parts 60 Connection 610 Trigger section 620, 620a Interlocking parts 630 Elastic recovery parts 640 Child seat support structure 100 Top Tether 3 Fixed part 31 Webbing Loop 311 Mounting part 32 First connecting part 4 Second connecting part 5 Reinforced Sheet 6

Claims

1. A child car seat including a base and a seat, the base includes a ring portion; the seat includes the other ring portion, The center position of the other ring portion overlaps with the center position of the ring portion, the seat rotates relative to the base around the center position of the other ring portion, and the other ring portion has at least one seat reinforcing component locked to the ring portion. A child seat characterized by the above.

2. The ring portion is provided with at least one base reinforcing part, and the at least one base reinforcing part and the at least one seat reinforcing part are locked together.

2. The child car seat according to claim 1.

3. further comprising a top lever fixed to a rear portion of the base; When the seat is in the forward use position, the top lever is located behind the seat, When the seat is in a rearward position, the top lever is located in front of the seat, When the seat is in a forward use position or a rearward position, the at least one base reinforcement component and the at least one seat reinforcement component are locked together.

3. The child car seat according to claim 2.

4. the at least one base reinforcing component includes four base reinforcing components; The four base reinforcing parts are uniformly provided around the circumference of the ring portion.

3. The child car seat according to claim 2.

5. further comprising a top lever fixed to a rear portion of the base; One of the four base reinforcing parts is located near the top lever, and the circumferential length of the base reinforcing part located near the top lever is greater than the circumferential lengths of the other three base reinforcing parts of the four base reinforcing parts.

5. The child car seat according to claim 4.

6. One of the other three base reinforcing parts is provided farther from the top lever, and the circumferential length of the base reinforcing part provided farther from the top lever is greater than the circumferential length of the other two base reinforcing parts of the other three base reinforcing parts.

6. A child car seat according to claim 5.

7. The at least one base reinforcement component and the at least one sheet reinforcement component are made of iron pieces.

3. The child car seat according to claim 2.

8. The at least one base reinforcing element may include a plurality of base reinforcing elements, the plurality of base reinforcing elements being uniformly or non-uniformly distributed along the ring portion.

3. The child car seat according to claim 2.

9. The at least one seat reinforcing component includes a plurality of seat reinforcing components, and the plurality of seat reinforcing components are arranged at different positions on the other ring portion.

2. The child car seat according to claim 1.

10. further comprising a top lever fixed to a rear portion of the base; The plurality of seat reinforcing parts include two seat reinforcing parts, and the two seat reinforcing parts are provided on a side of the other ring part closer to the top lever and a side of the other ring part farther from the top lever.

10. The child car seat according to claim 9.

11. The plurality of sheet reinforcing parts each have the same length and thickness.

10. The child car seat according to claim 9.

12. The plurality of sheet reinforcing parts each have a different length and thickness.

10. The child car seat according to claim 9.

13. The seat includes a backrest, a reinforced tube is provided at the top end of the backrest, and spacer rings are formed on both sides of the reinforced tube, respectively; The child car seat includes two top tethers, each of which is connected to either side of the lower end of the backrest, extends upward, passes through the spacer ring on the same side, and extends in a direction away from the backrest.

13. The child car seat according to claim 1, wherein the child car seat is a seat for a child.

14. Each of the top tethers is connected to a flexible part at the bottom end of the backrest.

14. A child car seat according to claim 13.

15. The two top tethers are provided on the side of the backrest facing the child seated in the child car seat.

14. A child car seat according to claim 13.

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