Multifunctional child seat for two-wheeled vehicle and folding safety device thereof

Abstract

In order to solve the problem that it is difficult to install both a rear child seat for carrying people and a rear trunk for carrying things for a two-wheeled vehicle such as a bicycle or an electric bicycle, the utility model provides a two-wheeled vehicle multifunctional child seat and a folding safety device thereof. The backrest of the two-wheeled vehicle multifunctional child seat comprises a first backrest part and a second backrest part, and the second backrest part and the first backrest part are hinged through a folding mechanism. After the folding locking part is unlocked to unlock the folding mechanism, the second backrest part and the side wing part can be folded forward together, and form an enclosed space together with the first backrest part, the base and the front wall part. After the enclosed space is formed, the folding locking part is positioned in the clamping groove to limit the folding mechanism, and the vehicle articles can be stored. The folding safety device is used for locking the folding locking part, which can improve the reliability of the folding mechanism on the one hand, and can realize the theftproof storage of the vehicle articles on the other hand.

Description

[0001] This application claims priority to Chinese patent application filed on August 7, 2024, with application number 2024218959695, entitled "A multi-functional child seat for a two-wheeled vehicle and a folding safety device thereof", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of child seats, and in particular to a multi-functional child seat for two-wheeled vehicles and its folding safety device. Background Technology

[0003] Bicycles (including e-bikes) and electric bicycles are common modes of transportation for citizens to pick up and drop off children at school due to their ease of parking. Many cities require children under six years old to use a fixed child safety seat on the rear rack when riding bicycles or electric bicycles, and they must wear a safety helmet. The "Electric Bicycle Safety Technical Specification" (GB17761-2018) restricts technical parameters such as wheelbase and saddle length of electric bicycles, significantly limiting their carrying capacity. Using a fixed child safety seat prevents the installation of a tail box, depriving safety helmets of a theft-proof storage space, which also limits the use of high-quality safety helmets. The use of front baskets is also unpopular; on the one hand, carrying items in a front basket affects steering feel, and on the other hand, it is not aesthetically pleasing. Similarly, installing a fixed seat on the rear rack of a bicycle presents the problem of where to store helmets. Summary of the Invention

[0004] To address the challenge of simultaneously accommodating both fixed child safety seats and cargo storage on two-wheeled vehicles such as bicycles (including e-bikes) and electric bicycles, this invention provides a multi-functional child seat for two-wheeled vehicles and its folding safety device. By folding down a portion of the multi-functional child seat to create an enclosed space, and using the folding safety device to lock the folding mechanism, the multi-functional child seat can serve as a long-term storage unit, achieving a dual-purpose design.

[0005] According to one aspect of the present invention, a multi-functional child seat for a two-wheeled vehicle (Type I) is provided, comprising: a base, a limiting frame, a front baffle, a folding mechanism, a backrest, and side wings.

[0006] The base is used to support young children when carrying passengers, and to form a barrier around the bottom when carrying cargo.

[0007] The limiting frame includes a front vertical frame and a longitudinal connecting piece. The longitudinal connecting piece is fixed to the base, and the front vertical frame is fixed to the longitudinal connecting piece. The front vertical frame and the longitudinal connecting piece can be hollow or solid structures, and their extension paths can be straight or curved.

[0008] The front bumper is hinged or flexibly connected to the base. When in use with a load, the forward tilting of the front bumper is limited by the front vertical frame. It should be noted that the hinged connection includes a flexible hinge. When in use with a load, the front bumper serves to enclose the multi-functional child seat of the two-wheeled vehicle from the front.

[0009] The folding mechanism includes a first folding component, a second folding component, and a folding locking component. The second folding component is hinged to the first folding component. The folding locking component is slidably mounted on the second folding component, hinged to the second folding component, or detachably connected to the second folding component. The first folding component has a slot that cooperates with the folding locking component. On the one hand, in the cargo-carrying state, the folding mechanism is unidirectionally limited, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying to passenger-carrying mode. On the other hand, in the passenger-carrying state, the folding mechanism is unidirectionally limited, restricting the maximum rearward unfolding angle of the folding mechanism. It should be noted that: when the folding locking component slides on the second folding component, gravity or friction can achieve self-locking of the folding mechanism; when the folding locking component is hinged to the second folding component, the center of gravity of the folding locking component is designed so that gravity can achieve self-locking of the folding mechanism; a threaded folding locking component that can be detachably connected to the second folding mechanism can also achieve self-locking of the folding mechanism.

[0010] The backrest comprises a first backrest component and a second backrest component. The first backrest component is fixed to the rear end of the base, and the second backrest component is directly or indirectly hinged to the first backrest component via a folding mechanism. The maximum angle at which the second backrest component flips forward around the hinge point is limited by a front retaining member. When the second backrest component is flipped forward around the hinge point and then stopped by the front retaining member, the front retaining member, the base, the first backrest component, and the second backrest component together form an enclosing structure. It should be noted that the second backrest component can be indirectly connected to the folding mechanism via side wings, and the first backrest component can be indirectly connected to the folding mechanism via the side of the base.

[0011] The side wings are fixed to the left and right sides of the second backrest, and are used to enclose the enclosure structure formed by the front baffle, base, first backrest, and second backrest from the side. The enclosure can be partial or complete. When in use with passengers, the side wings fixed to both sides of the second backrest can protect the riding toddler from the side.

[0012] Furthermore, to address the issue of the second backrest not being restricted from forward tilting during passenger use, which hinders the installation and use of seat belts, the above technical solution is improved: the folding locking component and the slot can cooperate to unidirectionally limit the folding mechanism during passenger use, thereby restricting the forward tilting of the second backrest. This prevents a two-wheeled multi-functional child seat (Type 1) from transitioning from passenger use to cargo use. The backrest, with its forward tilt restricted during passenger use, facilitates the securing and use of seat belts.

[0013] Furthermore, to improve the comfort of young children and facilitate their arm movements, the above technical solution is improved by introducing a base side panel to reduce the area of ​​the side wings and increase the range of motion of the children's arms. The base side panel is directly or indirectly fixed to the base and, together with the side wings, surrounds the seat from the side. The degree of enclosure can be partial or complete.

[0014] The side of the base can be directly fixed to the base, indirectly connected to the base via the first backrest component, or connected to both the base and the first backrest component simultaneously. Introducing the side of the base allows the side wing component to have a smaller area corresponding to the side of the base, increasing the range of motion for the child's arms. The side of the base can also connect to both the first backrest component and the base, thus improving the structural strength of the seat.

[0015] Optionally, to reduce the obstruction of the base to the child's legs, the above technical solution can be improved: the base is divided into a base moving part and a base fixing part. One end of the base moving part is hinged or flexibly connected to the front baffle, and the other end is hinged or flexibly connected to the base fixing part. It should be noted that the hinge method includes connection through a flexible hinge, and the materials of the base moving part and the base fixing part do not need to be the same. In the loaded state, the base moving part is supported by the longitudinal connecting part. In the passenger state, the base moving part and the front baffle can be flipped backward together, placing the base moving part on top of the base fixing part, leaning the front baffle against the first backrest, or placing the front baffle on the base fixing part to reduce the obstruction of the base to the child's legs.

[0016] According to another aspect of the present invention, a multi-functional child seat for a two-wheeled vehicle (Type II) is provided, comprising: a base, a limiting frame, a front baffle, a folding mechanism, a backrest, and side wings.

[0017] The base is used to support young children when carrying passengers, and to form a barrier around the bottom when carrying cargo.

[0018] The limiting frame includes a front vertical frame and a longitudinal connecting piece. The longitudinal connecting piece is fixed to the base, and the front vertical frame is fixed to the longitudinal connecting piece. The front vertical frame and the longitudinal connecting piece can be hollow or solid structures, and their extension paths can be straight or curved.

[0019] The front bumper is hinged or flexibly connected to the base. In the cargo-carrying configuration, the forward tilting of the front bumper is limited by the front vertical frame. In the cargo-carrying configuration, the front bumper serves to enclose the multi-functional child seat of the two-wheeled vehicle from the front. It should be noted that the hinged connection includes a flexible hinge.

[0020] The folding mechanism includes a first folding component, a second folding component, and a folding locking component. The second folding component is hinged to the first folding component. The folding locking component is slidably disposed on the second folding component, or hinged to the second folding component, or detachably connected to the second folding component. The first folding component has a slot that cooperates with the folding locking component to unidirectionally limit the folding mechanism in the cargo-carrying state, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying to passenger-carrying mode. One of the first and second folding components has a positioning protrusion, and the other has a positioning groove. In the passenger-carrying state, the positioning protrusion and positioning groove limit the maximum unfolding angle of the folding mechanism. It should be noted that: when the folding locking member slides onto the second folding member, gravity or friction can be used to achieve self-locking of the folding mechanism; when the folding locking member is hinged to the second folding member, the center of gravity of the folding locking member is designed so that gravity can be used to achieve self-locking of the folding mechanism; a threaded folding locking member that can be detachably connected to the second folding mechanism can also achieve self-locking of the folding mechanism. It is particularly important to note that sometimes the boundaries between the positioning protrusion and the positioning slot are somewhat blurred. Taking a third embodiment of a two-wheeled multi-functional child seat (type two) as an example: Figure 16 The positioning slot is located on the second folding part. If the shape of the second folding part is further modified, the excess part is cut off, and its features are weakened, it will be difficult to see the existence of the slot-style structure from the cross-sectional shape of the second folding part alone.

[0021] The backrest comprises a first backrest component and a second backrest component. The first backrest component is fixed to the rear end of the base, and the second backrest component is directly or indirectly hinged to the first backrest component via a folding mechanism. The maximum angle at which the second backrest component flips forward around the hinge point is limited by a front baffle. When the second backrest component is flipped forward around the hinge point and then stopped by the front baffle, the front baffle, the base, the first backrest component, and the second backrest component together form an enclosing structure. It should be noted that the second backrest component can be indirectly connected to the folding mechanism via side wings, and the first backrest component can be indirectly connected to the folding mechanism via the side of the base.

[0022] The side wings are fixed to the left and right sides of the second backrest, and are used to enclose the enclosure structure formed by the front baffle, base, first backrest, and second backrest from the side. The enclosure can be partial or complete. When in use with passengers, the side wings fixed to both sides of the second backrest can protect the riding toddler from the side.

[0023] Furthermore, to address the issue of the second backrest not being restricted from forward tilting during passenger use, which hinders the installation and use of seat belts, the above technical solution is improved: the folding locking component and the slot can cooperate to unidirectionally limit the folding mechanism during passenger use, thereby restricting the forward tilting of the second backrest. This prevents a two-wheeled multi-functional child seat (Type 1) from transitioning from passenger use to cargo use. The backrest, with its forward tilt restricted during passenger use, facilitates the securing and use of seat belts.

[0024] Furthermore, to improve the comfort of young children and facilitate their arm movements, the above technical solution is improved by introducing a base side panel to reduce the area of ​​the side wings and increase the range of motion of the child's arms. The base side panel is directly or indirectly fixed to the base and, together with the side wings, surrounds the seat from the side; the enclosure can be partial or complete. The base side panel can be directly fixed to the base, indirectly connected to the base through the first backrest, or simultaneously connected to both the base and the first backrest. Introducing the base side panel reduces the area of ​​the side wings by the area corresponding to the base side panel, thus increasing the range of motion of the child's arms. The base side panel can simultaneously connect to both the first backrest and the base to improve the structural strength of the seat.

[0025] Optionally, to reduce the obstruction of the base to a child's legs, the above technical solution can be improved: In some embodiments, the base includes a base moving component and a base fixing component. One end of the base moving component is hinged or flexibly connected to the front baffle, and the other end is hinged or flexibly connected to the base fixing component. It should be noted that the hinge connection includes a connection via a flexible hinge, and the materials of the base moving component and the base fixing component do not need to be the same. In the loaded state, the base moving component is supported by a longitudinal connecting component; in the passenger state, the base moving component and the front baffle can flip backward together. Placing the base moving component above the base fixing component, leaning the front baffle against the first backrest, or placing the front baffle on the base fixing component can reduce the obstruction of the base to a child's legs.

[0026] Furthermore, children of different heights have different requirements for backrest height. To accommodate children of different heights, some specific embodiments also include:

[0027] A backrest lifting frame is fixed to the folding mechanism and has limit holes.

[0028] The lifting and locking mechanism allows the second backrest component to slide on the backrest lifting frame. The lifting and locking mechanism includes a lifting mechanism body, a locking pin, and an elastic element. The lifting mechanism body slides on the backrest lifting frame, and the locking pin slides on the lifting mechanism body. Under the action of the elastic element, the locking pin is embedded in the limiting hole to achieve the locking function of the lifting and lowering conditions of the second backrest component.

[0029] When storing items for extended periods while carrying cargo, theft prevention needs to be considered. When carrying passengers, the possibility of accidental unlocking of the folding mechanism, which is limited by the folding locking device, needs to be considered.

[0030] Therefore, according to one aspect of the present invention, a folding safety device is provided for a two-wheeled vehicle multi-functional child seat as described above, comprising:

[0031] The lever is indirectly connected to the folding locking mechanism, making it easy to limit the folding locking mechanism from a distance.

[0032] The connecting rod is a rigid component used to connect the folding locking component and the pull rod. The movement of the folding locking component is transmitted to the pull rod through the connecting rod.

[0033] The rear vertical frame can be directly connected to the first or second folding component of the folding mechanism, or it can be indirectly connected to the folding mechanism via the backrest or side wings. The aforementioned tie rod slides onto the rear vertical frame, which can be a hollow or solid structure, and its extension path can be straight or curved. The rear vertical frame and the folding mechanism can be two integrally formed parts of the same material, and the rear vertical frame and the backrest can also be two integrally formed parts.

[0034] The lock body provides anti-theft functionality by locking the flip-up locking mechanism when the object is loaded, and prevents accidental unlocking by locking the flip-up locking mechanism when the object is loaded with people. The lock body is directly or indirectly fixed to the backrest, for example, indirectly fixed to the backrest via side wings or the side of the base.

[0035] The locking plate, connected to the lock body, can be used to directly limit the aforementioned pull rod or connecting rod, thereby indirectly limiting the flip-locking component. Attached Figure Description

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0037] Figure 1 This is a schematic diagram of the structure of the first embodiment of a two-wheeled multi-functional child seat (Type 1) when used with a passenger.

[0038] Figure 2 This is a schematic diagram of the structure of a first embodiment of a two-wheeled multi-functional child seat (Type 1) when used for carrying cargo.

[0039] Figure 3 This is a schematic diagram of the structure of a second embodiment of a two-wheeled multi-functional child seat (Type 1) when used with a passenger.

[0040] Figure 4 This is a schematic diagram of the structure of a second embodiment of a two-wheeled multi-functional child seat (Type 1) when used for carrying cargo.

[0041] Figure 5 This is a schematic diagram of the structure of a third embodiment of a two-wheeled multi-functional child seat (Type 1) when used with a passenger.

[0042] Figure 6 This is a schematic diagram of the structure of a third embodiment of a two-wheeled multi-functional child seat (Type 1) when used for carrying cargo.

[0043] Figure 7 This is a structural diagram of the fourth embodiment of a two-wheeled vehicle multi-functional child seat (Type 1) during state switching.

[0044] Figure 8 This is a schematic diagram of the structure of a fourth embodiment of a two-wheeled multi-functional child seat (Type 1) when used with a passenger.

[0045] Figure 9 This is a schematic diagram of the structure of a fourth embodiment of a two-wheeled multi-functional child seat (Type 1) when used for carrying cargo.

[0046] Figure 10 This is a schematic diagram of the structure of the first embodiment of a two-wheeled multi-functional child seat (Type II) when used with a passenger.

[0047] Figure 11 This is a schematic diagram of the structure of a first embodiment of a two-wheeled multi-functional child seat (Type II) when used for carrying cargo.

[0048] Figure 12 This is a schematic diagram of the structure of a first embodiment of a two-wheeled vehicle multi-functional child seat (type 2) during state switching.

[0049] Figure 13 This is a schematic diagram of the structure of a second embodiment of a two-wheeled multi-functional child seat (Type II) when used with a passenger.

[0050] Figure 14 This is a schematic diagram of the structure of the other side of a second embodiment of a two-wheeled multi-functional child seat (Type II) when used with a passenger.

[0051] Figure 15 This is a schematic diagram of the structure of a second embodiment of a two-wheeled multi-functional child seat (Type II) when used for carrying cargo.

[0052] Figure 16This is a structural diagram of the third embodiment of a two-wheeled vehicle multi-functional child seat (type 2) during state switching.

[0053] Figure 17 This is a schematic diagram of the structure of a third embodiment of a two-wheeled multi-functional child seat (Type II) when used with a passenger.

[0054] Figure 18 This is a schematic diagram of the structure of a third embodiment of a two-wheeled multi-functional child seat (Type II) when used for carrying cargo.

[0055] Figure 19 This is a schematic diagram of the structure of the first embodiment of the folding safety device when used by a person.

[0056] Figure 20 This is a schematic diagram of the structure of the first embodiment of the folding safety device when it is used to carry goods.

[0057] Figure 21 This is a schematic diagram of the structure of the second embodiment of the folding safety device when used by a person.

[0058] Figure 22 This is a schematic diagram of the structure of the second embodiment of the folding safety device when it is used to carry goods.

[0059] Figure 23 This is a schematic diagram of the structure of the third embodiment of the folding safety device when used by a person.

[0060] Figure 24 This is a schematic diagram of the structure on the other side when the third embodiment of the folding safety device is in use with a person.

[0061] Figure 25 This is a schematic diagram of the structure of the third embodiment of the folding safety device when it is used to carry goods.

[0062] Figure 26 This is a structural diagram of the fourth embodiment of the folding safety device during state switching.

[0063] Figure 27 This is a schematic diagram of the fourth embodiment of the folding safety device when used by a person.

[0064] Figure 28 This is a structural diagram of the fourth embodiment of the folding safety device when used for carrying goods.

[0065] Figure 29 This is a schematic diagram of the structure of the fourth embodiment of the folding safety device after the second backrest and side wings are hidden when the device is in use with passengers.

[0066] Figure 30 This is a schematic diagram of the structure of the fourth embodiment of the folding safety device after the first backrest, the second backrest, and the side wings are hidden when the device is used to carry goods. Detailed Implementation

[0067] For ease of description, the terms "front," "rear," "left," and "right" used below are determined based on the child's first-person perspective while riding, and are unrelated to the left-right direction of the accompanying drawings. For the sake of brevity, the multi-functional child seat for a two-wheeled vehicle provided in the following embodiments can be simply referred to as a "seat."

[0068] 1. A first embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I)

[0069] like Figure 1 and Figure 2 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0070] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0071] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0072] The front bumper 3 is hinged to the front end of the base 1. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front. When in use with a passenger, the front bumper 3 can be tilted backward onto the base 1.

[0073] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is slidably connected to the second folding member 42, with the sliding direction being vertical up and down. The first folding member 41 is provided with a slot 44, which can cooperate with the folding locking member 43. On the one hand, in the cargo-carrying state, the folding mechanism 4 is unidirectionally limited, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying to passenger-carrying state. On the other hand, in the passenger-carrying state, the folding mechanism 4 is unidirectionally limited, restricting the maximum rearward unfolding angle of the folding mechanism 4.

[0074] The backrest 5 includes a first backrest component 51 and a second backrest component 52. The first backrest component 51 is fixed to the rear end of the base 1, and the second backrest component 52 is directly hinged to the first backrest component 51 through a folding mechanism 4. The maximum angle at which the second backrest component 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest component 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest component 51, and the second backrest component 52 together form an enclosing structure.

[0075] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0076] Furthermore, in passenger-carrying mode, the forward-flipping of the second backrest 52 is not restricted, which makes it inconvenient to install and use the seat belt. Therefore, the solution in this embodiment is improved: in passenger-carrying mode, the folding locking member 43 and the slot 44 can cooperate to restrict the folding mechanism 4, thereby restricting the forward-flipping of the second backrest 52, preventing the two-wheeled vehicle's multi-functional child seat from switching from passenger-carrying mode to cargo-carrying mode. In passenger-carrying mode, the forward-flipping of the second backrest 52 is restricted, making it easier to install the seat belt.

[0077] Furthermore, to improve the comfort of young children and facilitate their arm movements, the technical solution of this embodiment is improved by introducing a base side 15 to reduce the area of ​​the side wing 6 and increase the range of motion of the child's arms. The base side 15 is directly fixed to the base 1 and is used together with the side wing 6 to side-enclose the seat.

[0078] This embodiment has two usage states, and the specific switching process is as follows: In the passenger-carrying usage state, the front enclosure 3 is flipped forward until it is limited by the front vertical frame 21. The folding locking member 43 is pushed upward to disengage it from the slot 44 to release the limitation on the folding mechanism 4. The second backrest member 52 is pushed forward to flip until it is limited by the front enclosure 3. Then, the folding locking member 43 is pushed to insert into the slot 44, thereby limiting the folding mechanism 4 and limiting the backward flipping of the second backrest member 52. After completing the state switching, the specific structure after entering the cargo-carrying usage state is as follows: Figure 2 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 1 As shown.

[0079] In this embodiment, the base 1, the first backrest 51, and the base side 15 are three parts integrally formed from the same material. Similarly, the side wing 6, the second backrest 52, and the first folding member 41 are also three parts integrally formed from the same material. The front vertical frame 21 and the longitudinal connecting member 22 are two parts integrally formed from the same material. In this embodiment, the side wing 6 and the base side 15 partially enclose the sides of the seat. The base side 15 has holes with the same shape as the slot 44 to facilitate operation of the folding locking member 43, while the side wing 6 has holes to avoid the folding locking member 43.

[0080] 2. A second embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I)

[0081] like Figure 3 and Figure 4 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0082] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0083] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0084] The front bumper 3 is hinged to the front end of the base 1. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front. When in use with a passenger, the front bumper 3 can be tilted backward onto the base 1.

[0085] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is hinged to the second folding member 42. The first folding member 41 is provided with a slot 44, which can cooperate with the folding locking member 43. On the one hand, in the cargo-carrying mode, the folding mechanism 4 is unidirectionally limited, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying mode to passenger-carrying mode. On the other hand, in the passenger-carrying mode, the folding mechanism 4 is unidirectionally limited, restricting the maximum rearward unfolding angle of the folding mechanism 4.

[0086] The backrest 5 includes a first backrest component 51 and a second backrest component 52. The first backrest component 51 is fixed to the rear end of the base 1, and the second backrest component 52 is directly hinged to the first backrest component 51 through a folding mechanism 4. The maximum angle at which the second backrest component 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest component 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest component 51, and the second backrest component 52 together form an enclosing structure.

[0087] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0088] This embodiment has two usage states, and the specific switching process is as follows: In the passenger-carrying usage state, the front barrier 3 is flipped forward until it is limited by the front vertical frame 21. The folding locking member 43 is pushed upward from the rear of the first backrest 51 to disengage it from the slot 44, thereby releasing the limitation on the folding mechanism 4. Then, the second backrest 52 is pushed forward to flip until it is limited by the front barrier 3. Then, the folding locking member 43 is released so that it is inserted into the slot 44 under the action of gravity, thereby limiting the folding mechanism 4 and limiting the rearward flipping of the second backrest 52. After completing the state switching, the specific structure after entering the cargo-carrying usage state is as follows. Figure 4 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 3 As shown.

[0089] Furthermore, in passenger-carrying mode, the forward-flipping of the second backrest 52 is not restricted, which makes it inconvenient to install and use the seat belt. Therefore, the solution in this embodiment is improved: in passenger-carrying mode, the folding locking member 43 and the slot 44 can cooperate to restrict the folding mechanism 4, thereby restricting the forward-flipping of the second backrest 52, preventing the two-wheeled vehicle's multi-functional child seat from switching from passenger-carrying mode to cargo-carrying mode. In passenger-carrying mode, the forward-flipping of the second backrest 52 is restricted, making it easier to install the seat belt.

[0090] Furthermore, to improve the comfort of young children and facilitate their arm movements, the technical solution of this embodiment is improved by introducing a base side 15 to reduce the area of ​​the side wing 6 and increase the range of motion of the young children's arms. The base side 15 is directly fixed to the first backrest 51 and indirectly fixed to the base 1, and is used together with the side wing 6 to side-enclose the seat.

[0091] In this embodiment, the base 1 and the first backrest 51 are two parts integrally formed from the same material. In this embodiment, the second folding member 42 is fixed to the first backrest 51, and the first folding member 41 is fixed to the second backrest 52. In this embodiment, the side wing 6 is fixed to the second backrest 52. In this embodiment, the longitudinal connecting member 22 and the base 1 are two parts integrally formed from the same material.

[0092] 3. A third embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I)

[0093] like Figure 5 and Figure 6 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0094] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0095] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0096] The front bumper 3 is hinged to the front end of the base 1. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front. When in use with a passenger, the front bumper 3 can be tilted backward onto the base 1.

[0097] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is a bolt that is detachably connected to the second folding member 42. The first folding member 41 is provided with a slot 44, which can cooperate with the folding locking member 43. On the one hand, in the cargo-carrying mode, the folding mechanism 4 is unidirectionally limited, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying mode to passenger-carrying mode. On the other hand, in the passenger-carrying mode, the folding mechanism 4 is unidirectionally limited, restricting the maximum rearward unfolding angle of the folding mechanism 4.

[0098] The backrest 5 includes a first backrest member 51 and a second backrest member 52. The first backrest member 51 is fixed to the rear end of the base 1. The second backrest member 52 is indirectly hinged to the first backrest member 51 through a folding mechanism 4. The second backrest member 52 is indirectly connected to the second folding member 42 through side wings. The maximum angle at which the second backrest member 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest member 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest member 51, and the second backrest member 52 together form an enclosing structure.

[0099] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0100] Furthermore, in passenger-carrying mode, the forward-flipping of the second backrest 52 is not restricted, which makes it inconvenient to install and use the seat belt. Therefore, the solution in this embodiment is improved: in passenger-carrying mode, the folding locking member 43 and the slot 44 can cooperate to restrict the folding mechanism 4, thereby restricting the forward-flipping of the second backrest 52, preventing the two-wheeled vehicle's multi-functional child seat from switching from passenger-carrying mode to cargo-carrying mode. In passenger-carrying mode, the forward-flipping of the second backrest 52 is restricted, making it easier to install the seat belt.

[0101] Furthermore, to improve the comfort of young children and facilitate their arm movements, the technical solution of this embodiment is improved by introducing a base side 15 to reduce the area of ​​the side wing 6 and increase the range of motion of the child's arms. The base side 15 is fixed to both the first backrest 51 and the base 1, and the base side 15, together with the side wing 6, serves to side-enclose the seat.

[0102] This embodiment has two usage states, and the specific switching process is as follows: In the passenger-carrying usage state, the front barrier 3 is flipped forward until it is limited by the front vertical frame 21. The folding locking member 43 is rotated to disengage it from the slot 44 to release the limitation on the folding mechanism 4. The second backrest member 52 is pushed forward to flip until it is limited by the front barrier 3. Then, the folding locking member 43 is rotated in the opposite direction to enter the slot 44, thereby limiting the folding mechanism 4 and limiting the backward flipping of the second backrest member 52. After completing the state switching, the specific structure after entering the cargo-carrying usage state is as follows: Figure 6 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 5 As shown.

[0103] In this embodiment, the first backrest 51, the first folding member 41, and the base side 15 are three parts integrally formed from the same material. Similarly, the side wing 6, the second backrest 52, and the second folding member 42 are also three parts integrally formed from the same material. This embodiment uses one limiting frame. The front vertical frame 21 and the longitudinal connecting member 22 are two parts integrally formed from the same material.

[0104] 4. A fourth embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I).

[0105] like Figure 7 , Figure 8 and Figure 9 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0106] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0107] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0108] The front bumper 3 is flexibly connected to the front end of the base 1 via a nylon strap. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front.

[0109] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is slidably mounted on the second folding member 42, with its sliding direction being vertical up and down. The first folding member 41 is provided with a slot 44, which can cooperate with the folding locking member 43. On the one hand, in the cargo-carrying mode, the folding mechanism 4 is unidirectionally limited, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying mode to passenger-carrying mode. On the other hand, in the passenger-carrying mode, the folding mechanism 4 is unidirectionally limited, restricting the maximum rearward unfolding angle of the folding mechanism 4.

[0110] The backrest 5 includes a first backrest component 51 and a second backrest component 52. The first backrest component 51 is fixed to the rear end of the base 1, and the second backrest component 52 is directly hinged to the first backrest component 51 through a folding mechanism 4. The maximum angle at which the second backrest component 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest component 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest component 51, and the second backrest component 52 together form an enclosing structure.

[0111] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0112] To reduce the obstruction of the base 1 to the child's legs, the technical solution of this embodiment is improved: the base 1 is divided into a base moving part 12 and a base fixing part 11. One end of the base moving part 12 is flexibly connected to the front baffle 3 by a nylon strap, and the other end is flexibly connected to the base fixing part 11 by a nylon strap. In the cargo-carrying state, the base moving part 12 is supported by the longitudinal connecting part 22. In the passenger-carrying state, the base moving part 12 and the front baffle 3 can be flipped backward together, placing the base moving part 12 above the base fixing part 11 and leaning the front baffle 3 against the first backrest part 51, thereby reducing the obstruction of the base 1 to the child's legs.

[0113] In this embodiment, the base fixing member 11 and the first backrest member 51 are two parts integrally formed from the same material. Similarly, the side wing member 6 and the second backrest member 52 are two parts integrally formed from the same material. In this embodiment, the front vertical frame 21, the longitudinal connecting member 22, and the base fixing member 11 are three parts integrally formed from the same material. In this embodiment, the first folding member 41 is fixed to the first backrest member 51, and the second folding member 42 is fixed to the second backrest member 52.

[0114] This embodiment has two usage states, and the specific switching process is as follows: In Figure 8 In the passenger-carrying state shown, the front enclosure 3 and the base moving part 12 are flipped forward until they are limited by the front vertical frame 21 and the longitudinal connecting part 22. Then, the folding locking part 43 is pushed upward to release the limitation on the folding mechanism 4, pushing the second backrest 52 to flip forward until it is limited by the front enclosure 3. Then, the folding locking part 43 is pushed to engage with the slot 44, thereby limiting the folding mechanism 4 and limiting the rearward flipping of the second backrest 52. After completing the state switch, the specific structure after entering the cargo-carrying state is as follows: Figure 9 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 7 As shown.

[0115] 5. A first embodiment of a multi-functional child seat for a two-wheeled vehicle (Type II).

[0116] like Figure 10 , Figure 11 and Figure 12 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0117] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0118] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0119] The front bumper 3 is hinged to the front end of the base 1. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front. When in use with a passenger, the front bumper 3 can be tilted backward onto the base 1.

[0120] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is hinged to the second folding member 42. The first folding member 41 is provided with a slot 44, which can cooperate with the folding locking member 43 to unidirectionally limit the folding mechanism 4 in the cargo-carrying state, preventing the two-wheeled vehicle's multi-functional child seat from changing from the cargo-carrying state to the passenger-carrying state. The second folding member 42 is provided with a positioning protrusion 45, and the first folding member 41 is provided with a positioning groove 46. In the passenger-carrying state, the positioning protrusion 45 and the positioning groove 46 limit the maximum unfolding angle of the folding mechanism 4.

[0121] The backrest 5 includes a first backrest component 51 and a second backrest component 52. The first backrest component 51 is fixed to the rear end of the base 1, and the second backrest component 52 is directly hinged to the first backrest component 51 through a folding mechanism 4. The maximum angle at which the second backrest component 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest component 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest component 51, and the second backrest component 52 together form an enclosing structure.

[0122] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0123] Furthermore, in passenger-carrying mode, the forward-flipping of the second backrest 52 is not restricted, which makes it inconvenient to install the seat belt. Therefore, the solution in this embodiment is improved: in passenger-carrying mode, the folding locking member 43 and the slot 44 can cooperate to restrict the folding mechanism 4, thereby restricting the forward-flipping of the second backrest 52, preventing the two-wheeled vehicle's multi-functional child seat from switching from passenger-carrying mode to cargo-carrying mode. In passenger-carrying mode, the forward-flipping of the second backrest 52 is restricted, making it easier to install the seat belt.

[0124] Furthermore, to improve the comfort of young children and facilitate their arm movements, the technical solution of this embodiment is improved by introducing a base side 15 to reduce the area of ​​the side wing 6 and increase the range of motion of the child's arms. The base side 15 is directly fixed to the base 1 and is used together with the side wing 6 to side-enclose the seat.

[0125] This embodiment has two usage states, and the specific switching process is as follows: In the passenger-carrying usage state, the front barrier 3 is flipped forward until it is limited by the front vertical frame 21. The folding locking member 43 is pushed upward from the rear of the first backrest 51 to disengage it from the slot 44, thereby releasing the limitation on the folding mechanism 4. Then, the second backrest 52 is pushed forward to flip until it is limited by the front barrier 3. Then, the folding locking member 43 is pushed to insert into the slot 44, thereby limiting the folding mechanism 4 and limiting the rearward flipping of the second backrest 52. After completing the state switching, the specific structure after entering the cargo-carrying usage state is as follows. Figure 11 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 10 As shown.

[0126] In this embodiment, the base 1 and the first backrest 51 are two parts integrally formed from the same material. In this embodiment, the second folding member 42 is fixed to the first backrest 51, and the first folding member 41 is fixed to the second backrest 52. In this embodiment, the side wing 6 is fixed to the second backrest 52. In this embodiment, the longitudinal connecting member 22 and the base 1 are two parts integrally formed from the same material.

[0127] 6. A second embodiment of a multi-functional child seat for a two-wheeled vehicle (Type II)

[0128] like Figure 13 , Figure 14 and Figure 15 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0129] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0130] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0131] The front bumper 3 is hinged to the front end of the base 1. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front. When in use with a passenger, the front bumper 3 can be tilted backward onto the base 1.

[0132] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is a bolt that is detachably connected to the second folding member 42. The first folding member 41 has a slot 44 that can cooperate with the folding locking member 43 to unidirectionally limit the folding mechanism 4 in the cargo-carrying state, preventing the two-wheeled vehicle's multi-functional child seat from changing from the cargo-carrying state to the passenger-carrying state. The second folding member 42 has a positioning protrusion 45, and the first folding member has a positioning groove 46. In the passenger-carrying state, the positioning protrusion 45 and the positioning groove 46 limit the maximum unfolding angle of the folding mechanism 4.

[0133] The backrest 5 includes a first backrest member 51 and a second backrest member 52. The first backrest member 51 is fixed to the rear end of the base 1. The second backrest member 52 is indirectly hinged to the first backrest member 51 through a folding mechanism 4. The second backrest member 52 is indirectly connected to the second folding member 42 through side wings. The maximum angle at which the second backrest member 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest member 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest member 51, and the second backrest member 52 together form an enclosing structure.

[0134] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0135] Furthermore, in passenger-carrying mode, the forward-flipping of the second backrest 52 is not restricted, which makes it difficult to secure the seat belt. Therefore, this embodiment is improved: the folding locking member 43 and the slot 44 cooperate to restrict the folding mechanism 4, limiting the forward-flipping of the second backrest 52 in passenger-carrying mode, preventing the two-wheeled vehicle's multi-functional child seat from switching from passenger-carrying to cargo-carrying mode. In passenger-carrying mode, the forward-flipping restriction of the second backrest 52 makes it easier to install the seat belt.

[0136] This embodiment has two usage states, and the specific switching process is as follows: In the passenger-carrying usage state, the front barrier 3 is flipped forward until it is limited by the front vertical frame 21. The folding locking member 43 is rotated to disengage it from the slot 44 to release the limitation on the folding mechanism 4. The second backrest member 52 is pushed forward to flip until it is limited by the front barrier 3. Then, the folding locking member 43 is rotated in the opposite direction to enter the slot 44, thereby limiting the folding mechanism 4 and limiting the backward flipping of the second backrest member 52. After completing the state switching, the specific structure after entering the cargo-carrying usage state is as follows: Figure 15 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 13 As shown.

[0137] In this embodiment, the base 1, the first backrest 51, and the first folding member 41 are three parts integrally formed from the same material. Similarly, the side wing 6 and the second folding member 42 are two parts integrally formed from the same material. The front vertical frame 21 and the longitudinal connecting member 22 are two parts integrally formed from the same material.

[0138] 7. A third embodiment of a multi-functional child seat for a two-wheeled vehicle (Type II).

[0139] like Figure 16 , Figure 17 and Figure 18 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, including: a base 1, a limiting frame 2, a front panel 3, a folding mechanism 4, a backrest 5, and side wings 6.

[0140] The base 1 is used to support children when they are in passenger mode, and to form a barrier around the bottom when they are in cargo mode.

[0141] The limiting frame 2 includes a front vertical frame 21 and a longitudinal connector 22. The longitudinal connector 22 is fixed to the base 1, and the front vertical frame 21 is fixed to the longitudinal connector 22.

[0142] The front bumper 3 is hinged to the front end of the base 1. When in use with cargo, the forward tilting of the front bumper 3 is limited by the front vertical frame 21. When in use with cargo, the front bumper 3 encloses the multi-functional child seat of the two-wheeled vehicle from the front.

[0143] The folding mechanism 4 includes a first folding member 41, a second folding member 42, and a folding locking member 43. The second folding member 42 is hinged to the first folding member 41, and the folding locking member 43 is slidably mounted on the second folding member 42, sliding vertically up and down. The first folding member 41 has a slot 44 that cooperates with the folding locking member 43 to unidirectionally limit the folding mechanism 4 in the cargo-carrying state, preventing the two-wheeled vehicle's multi-functional child seat from changing from cargo-carrying to passenger-carrying mode. The first folding member 41 has a positioning protrusion 45, and the second folding member 42 has a positioning groove 46. In the passenger-carrying state, the positioning protrusion 45 and the positioning groove 46 limit the maximum unfolding angle of the folding mechanism 4.

[0144] The backrest 5 includes a first backrest member 51 and a second backrest member 52. The first backrest member 51 is fixed to the rear end of the base 1, and the second backrest member 52 is indirectly hinged to the first backrest member 51 through a folding mechanism 4. The maximum angle at which the second backrest member 52 flips forward around the hinge point is limited by the front baffle 3. When the second backrest member 52 flips forward around the hinge point and is limited by the front baffle 3, the front baffle 3, the base 1, the first backrest member 51, and the second backrest member 52 together form an enclosing structure.

[0145] The side wings 6 are fixed to the left and right sides of the second backrest 52, and are used to enclose the enclosure structure formed by the front baffle 3, the base 1, the first backrest 51, and the second backrest 52 from the side. In the passenger-carrying state, the side wings 6 fixed to both sides of the second backrest 52 can protect the riding child from the side.

[0146] To reduce the obstruction of the base 1 to the child's legs, the technical solution of this embodiment is improved: the base 1 is divided into a base moving part 12 and a base fixing part 11. One end of the base moving part 12 is hinged to the front baffle 3, and the other end is hinged to the base fixing part 11. In the cargo-carrying state, the base moving part 12 is supported by the longitudinal connecting part 22. In the passenger-carrying state, the base moving part 12 and the front baffle 3 can be flipped backward together, placing the base moving part 12 above the base fixing part 11 and leaning the front baffle 3 against the first backrest 51, so as to reduce the obstruction of the base 1 to the child's legs.

[0147] Children of different heights have different requirements for backrest height. To accommodate children of different heights, this embodiment also includes:

[0148] The backrest lifting frame 7 is fixed to the second folding member 42 of the folding mechanism 4. The backrest lifting frame 7 has a limit hole 71.

[0149] The lifting and locking mechanism 8 allows the second backrest component 52 to slide on the backrest lifting frame 7. The lifting and locking mechanism 8 includes a lifting mechanism body 81, a locking pin 82, and an elastic element 83. The lifting mechanism body 81 slides on the backrest lifting frame 7, and the locking pin 82 slides on the lifting mechanism body 81. Under the action of the elastic element 83, the locking pin 82 is embedded in the limiting hole 71 to achieve the function of locking the lifting of the second backrest component 52.

[0150] In this embodiment, the base fixing member 11 and the first backrest member 51 are two parts integrally formed from the same material. Similarly, the side wing member 6 and the second backrest member 52 are two parts integrally formed from the same material. The front vertical frame 21 and the longitudinal connecting member 22 are also two parts integrally formed from the same material. In this embodiment, the first folding member 41 is fixed to the first backrest member 51, and the second folding member 42 is fixed to the second backrest member 52. In this embodiment, the second backrest member 52 is indirectly connected to the folding mechanism 4 via the lifting locking mechanism 8 and the backrest lifting frame 7, thereby hinged to the first backrest member 51.

[0151] This embodiment has two usage states, and the specific switching process is as follows: In Figure 17 In the passenger-carrying state shown, the front enclosure 3 and the base moving part 12 are flipped forward until they are limited by the front vertical frame 21 and the longitudinal connecting part 22. Then, the folding locking part 43 is pushed upward to release the limitation on the folding mechanism 4, pushing the second backrest 52 to flip forward until it is limited by the front enclosure 3. Then, the folding locking part 43 is pushed to engage with the slot 44, thereby limiting the folding mechanism 4 and limiting the rearward flipping of the second backrest 52. The specific structure after completing the state switch to the cargo-carrying state is as follows: Figure 18 As shown, the specific structure of the folding locking member 43 and the slot 44 is as follows: Figure 16As shown, the specific structure of the positioning protrusion 45 and the positioning groove 46 is as follows: Figure 16 As shown.

[0152] 8. First embodiment of the folding safety device

[0153] like Figure 19 and Figure 20 As shown, this embodiment provides a folding safety device for a two-wheeled vehicle multi-functional child seat as described above, including: a pull rod 47, a connecting rod 48, a rear vertical frame 49, a lock body 91, and a lock plate 92.

[0154] The lever 47 is indirectly connected to the folding locking member 43, which facilitates limiting the folding locking member 43 from a distance.

[0155] Link 48 is a rigid component used to connect the flip-locking component 43 and the pull rod 47. The movement of the flip-locking component 43 is transmitted to the pull rod 47 through the link 48.

[0156] The rear vertical frame 49 is fixed to the second folding member 42. The aforementioned tie rod 47 is slidably mounted on the rear vertical frame 49.

[0157] The lock body 91 is used to implement the anti-theft function and is fixed to the first backrest piece 51.

[0158] The locking plate 92 is connected to the lock body 91. Operating the lock body 91 drives the locking plate 92 to directly limit the aforementioned pull rod 47, which can indirectly limit the flip-locking member 43 as well.

[0159] The two-wheeled multi-functional child seat in this embodiment is basically the same as the first embodiment of the two-wheeled multi-functional child seat (type 1) mentioned above. The main difference is that this embodiment does not have a base side 15, and the folding locking member 43 of this embodiment is slidably mounted on the second folding member 42, and its cross-sectional shape is rectangular.

[0160] In this embodiment, the rear vertical frame 49 is fixed to the second folding member 42. In this embodiment, one end of the connecting rod 48 is fixed to the folding locking member 43, and the other end is fixed to the pull rod 47. After the connecting rod 48 is limited by the locking piece 92, the folding locking member 43 is locked in the slot 44. This solves the problem of theft prevention when storing items for a long time in the carrying state, and improves the reliability of the folding mechanism 4.

[0161] 9. A second embodiment of the folding safety device

[0162] like Figure 21 and Figure 22 As shown, this embodiment provides a folding safety device for a two-wheeled vehicle multi-functional child seat as described above, including: a pull rod 47, a connecting rod 48, a rear vertical frame 49, a lock body 91, and a lock plate 92.

[0163] The lever 47 is indirectly connected to the folding locking member 43, which facilitates limiting the folding locking member 43 from a distance.

[0164] Link 48 is a rigid component used to connect the flip-locking component 43 and the pull rod 47. The movement of the flip-locking component 43 is transmitted to the pull rod 47 through the link 48.

[0165] The rear vertical frame 49 is fixed to the second folding member 42. The aforementioned tie rod 47 is slidably mounted on the rear vertical frame 49.

[0166] The lock body 91 is used to implement the anti-theft function and is fixed to the first backrest piece 51.

[0167] The locking plate 92 is connected to the lock body 91. Operating the lock body 91 drives the locking plate 92 to directly limit the aforementioned pull rod 47, which can indirectly limit the flip-locking member 43 as well.

[0168] The two-wheeled multi-functional child seat in this embodiment is basically the same as the second embodiment of the two-wheeled multi-functional child seat (Type I) described above.

[0169] In this embodiment, the rear vertical frame 49 and the second folding member 42 are two parts integrally formed from the same material. In this embodiment, one end of the connecting rod 48 is hinged to the folding locking member 43, and the other end is fixed to the pull rod 47. After the pull rod 47 is limited by the locking piece 92, the folding locking member 43 is locked in the slot 44, which solves the problem of theft prevention when storing items for a long time in the carrying state, and improves the reliability of the folding mechanism 4.

[0170] 10. A third embodiment of the folding safety device

[0171] like Figure 23 , Figure 24 and Figure 25 As shown, this embodiment provides a folding safety device for a two-wheeled vehicle multi-functional child seat as described above, including: a pull rod 47, a connecting rod 48, a rear vertical frame 49, a lock body 91, and a lock plate 92.

[0172] The lever 47 is indirectly connected to the folding locking member 43, which facilitates limiting the folding locking member 43 from a distance.

[0173] Link 48 is a rigid component used to connect the flip-locking component 43 and the pull rod 47. The movement of the flip-locking component 43 is transmitted to the pull rod 47 through the link 48.

[0174] The rear vertical frame 49 is fixed to the second folding member 42. The aforementioned tie rod 47 is slidably mounted on the rear vertical frame 49.

[0175] The lock body 91 is used to implement the anti-theft function and is fixed to the first backrest piece 51.

[0176] The locking plate 92 is connected to the lock body 91. Operating the lock body 91 drives the locking plate 92 to directly limit the aforementioned pull rod 47, which can indirectly limit the flip-locking member 43 as well.

[0177] The two-wheeled multi-functional child seat in this embodiment is basically the same as the second embodiment of the two-wheeled multi-functional child seat (type II) described above.

[0178] In this embodiment, the rear vertical frame 49 is fixed to the second folding member 42. One end of the connecting rod 48 is sleeved on the folding locking member 43, and the other end is fixed to the pull rod 47. After the pull rod 47 is locked and limited by the locking piece 92, the folding locking member 43 is also limited, and the folding locking member 43 cannot be unscrewed out of the slot 44. This solves the problem of preventing theft when storing items for a long time while carrying them, and also improves the reliability of the folding mechanism 4.

[0179] 11. Fourth embodiment of the folding safety device

[0180] like Figure 26 , Figure 27 , Figure 28 , Figure 29 and Figure 30 As shown, this embodiment provides a folding safety device for a two-wheeled vehicle multi-functional child seat as described above, including: a pull rod 47, a connecting rod 48, a rear vertical frame 49, a lock body 91, and a lock plate 92.

[0181] The lever 47 is indirectly connected to the folding locking member 43, which facilitates limiting the folding locking member 43 from a distance.

[0182] Link 48 is a rigid component used to connect the flip-locking component 43 and the pull rod 47. The movement of the flip-locking component 43 is transmitted to the pull rod 47 through the link 48.

[0183] The rear vertical frame 49 is fixed to the second folding member 42. The aforementioned tie rod 47 is slidably mounted on the rear vertical frame 49.

[0184] The lock body 91 is used to implement the anti-theft function and is fixed to the first backrest piece 51.

[0185] The locking plate 92 is connected to the lock body 91. Operating the lock body 91 drives the locking plate 92 to directly limit the aforementioned pull rod 47, which can indirectly limit the flip-locking member 43 as well.

[0186] The two-wheeled multi-functional child seat in this embodiment is basically the same as the third embodiment of the two-wheeled multi-functional child seat (type 2) mentioned above. The limiting frame 2, rear vertical frame 49, base fixing member 11, and first backrest member 51 in this embodiment are four parts integrally formed from the same material. One end of the connecting rod 48 in this embodiment is fixed to the folding locking member 43, and the other end is fixed to the pull rod 47. Operating the lock body causes the locking plate 92 to limit the pull rod 47, which in turn lifts the folding locking member 43 and locks it into the slot 44, thereby limiting the folding mechanism 4. After releasing the locking plate 92 from limiting the pull rod 47, the folding locking member 43, connecting rod 48, and pull rod 47, as a whole, can freely fall away from the slot 44 under the action of gravity, thereby releasing the limitation on the folding mechanism 4.

[0187] This utility model provides a multi-functional child seat for two-wheeled vehicles with two usage modes, catering to both passenger and cargo needs when installed in the rear-mounted child seat configuration. To achieve these objectives, the folding mechanism 4 is an indispensable technical feature. The folding mechanism 4 has a limiting function, allowing the multi-functional child seat to remain in either passenger or cargo-carrying mode. All three independent claims in this application include this specific technical feature of the folding mechanism 4. The first two independent claims each describe different structures of the folding mechanism 4, while the third independent claim expands upon the folding mechanism 4, making its limiting function more reliable and enabling the seat to store items without theft when in cargo-carrying mode.

Claims

1. A multi-functional child seat for a two-wheeled vehicle, characterized in that, The utility model relates to a two-wheeled car multifunctional child seat, which comprises a base (1), a limiting frame (2) fixed to the base (1), a front wall (3) for surrounding the two-wheeled car multifunctional child seat from the front in a load-carrying state, a folding mechanism (4) comprising a first folding piece (41), a second folding piece (42) hinged to the first folding piece (41), and a folding locking piece (43) slidably arranged on, detachably connected to, or hinged to the second folding piece (42), wherein the first folding piece (41) is provided with a clamping groove (44) capable of cooperating with the folding locking piece (43) to one-way limit the folding mechanism (4) in a load-carrying state, so that the two-wheeled car multifunctional child seat cannot be converted from the load-carrying state to a load-carrying state, and one-way limit the folding mechanism (4) in a load-carrying state to limit the maximum unfolding angle of the folding mechanism (4), a backrest (5) comprising a first backrest piece (51) fixed to the rear end of the base (1) and a second backrest piece (52) hinged to the first backrest piece (51) directly or indirectly through the folding mechanism (4), wherein the maximum angle of forward rotation of the second backrest piece (52) around the hinge point is limited by the front wall (3), and when the second backrest piece (52) is forward rotated around the hinge point and limited by the front wall (3), the front wall (3), the base (1), the first backrest piece (51), and the second backrest piece (52) together form an enclosed structure, and a side wing piece (6) fixed to the left and right sides of the second backrest piece (52) for enclosing the enclosed structure formed by the front wall (3), the base (1), the first backrest piece (51), and the second backrest piece (52) from the side. The clamping groove (44) can cooperate with the folding locking piece (43) in a load-carrying state to one-way limit the folding mechanism (4), so that the two-wheeled car multifunctional child seat cannot be converted from the load-carrying state to a load-carrying state. The utility model further comprises a base side edge (15) directly or indirectly fixed to the base (1) for enclosing the seat from the side together with the side wing piece (6) to reduce the area of the side wing piece (6) and increase the movement range of the arms of the young child. ​ ​ ​ ​ 2. A multi-functional child seat for a two-wheeled vehicle as claimed in claim 1, characterized in that: ​ 3. A multi-functional child seat for a two-wheeled vehicle as defined in claim 2, characterized in that ​ ​ 4. A multi-functional child seat for a two-wheeled vehicle as defined in claim 1, characterized in that: The base (1) comprises a base fixed part (11) and a base moving part (12), one end of the base moving part (12) is hinged or flexibly connected with the front wall (3), the other end is hinged or flexibly connected with the base fixed part (11), and the base moving part (12) is supported by the longitudinal connecting part (22) in the object-carrying state.

5. A versatile child seat for a two-wheeled vehicle, characterized in that It comprises: a base (1); a limiting frame (2) fixed to the base (1), the limiting frame (2) comprises a front vertical frame (21) and a longitudinal connecting part (22), the longitudinal connecting part (22) is fixed to the base (1), and the front vertical frame (21) is fixed to the longitudinal connecting part (22); a front wall (3) for enclosing the multifunctional child seat from the front in the object-carrying state, the front wall (3) is hinged or flexibly connected to the base (1), and the front turning of the front wall (3) is limited by the front vertical frame (21) in the object-carrying state; a folding mechanism (4), the folding mechanism (4) comprises a first folding part (41), a second folding part (42) and a folding locking part (43), the second folding part (42) is hinged to the first folding part (41), the folding locking part (43) is slidably arranged on the second folding part (42), or detachably connected to the second folding part (42), or hinged to the second folding part (42), the first folding part (41) is provided with a clamping groove (44), the clamping groove (44) can be matched with the folding locking part (43) to limit the folding mechanism (4) in the object-carrying state, so that the multifunctional child seat cannot be changed from the object-carrying state to the person-carrying state, and one of the first folding part (41) and the second folding part (42) is provided with a positioning protrusion (45), and the other is provided with a positioning groove (46), the positioning protrusion (45) and the positioning groove (46) limit the maximum unfolding angle of the folding mechanism (4) in the person-carrying state; a backrest (5), the backrest (5) comprises a first backrest part (51) and a second backrest part (52), the first backrest part (51) is fixed to the rear end of the base (1), and the second backrest part (52) is hinged to the first backrest part (51) directly or indirectly through the folding mechanism (4), the maximum angle of the second backrest part (52) turning forward around the hinge point is limited by the front wall (3), and when the second backrest part (52) turns forward around the hinge point and is limited by the front wall (3), the front wall (3), the base (1), the first backrest part (51) and the second backrest part (52) form a closed structure together. Side wing (6), fixed on the left and right sides of the second backrest (52), used to block the front wall (3), the base (1), the first backrest (51), the second backrest (52) from the side.

6. A multi-functional child seat for a two-wheeled vehicle as defined in claim 5, characterized in that: The clamping groove (44) can cooperate with the folding locking piece (43) in the passenger carrying state, one-way limit the folding mechanism (4), so that the multifunctional child seat of the two-wheeled vehicle cannot be changed from the passenger carrying state to the cargo carrying state.

7. A multi-functional child seat for a two-wheeled vehicle as claimed in claim 6, wherein Also includes: The base side (15) is directly or indirectly fixed to the base (1), used to block the seat from the side with the side wing (6), to reduce the area of the side wing (6) and increase the activity range of the child's arms.

8. A multi-functional child seat for a two-wheeled vehicle as defined in claim 5, characterized in that: The base (1) includes a base fixing piece (11) and a base moving piece (12), one end of the base moving piece (12) is hinged or flexibly connected with the front wall (3), and the other end is hinged or flexibly connected with the base fixing piece (11), and in the cargo carrying state, the base moving piece (12) is supported by the longitudinal connecting piece (22).

9. A multi-functional child seat for a two-wheeled vehicle as defined in claim 8, characterized in that Also includes: Backrest lifting frame (7), fixed to the folding mechanism (4) and the limiting hole (71) is opened on the backrest lifting frame (7); Lifting locking mechanism (8), the second backrest (52) is slidably connected to the backrest lifting frame (7) through the lifting locking mechanism (8), the lifting locking mechanism (8) includes a lifting mechanism body (81), a locking pin (82), and a elastic piece (83), the lifting mechanism body (81) is slidably connected to the backrest lifting frame (7), the locking pin (82) is slidably connected to the lifting mechanism body (81), and the locking pin (82) is embedded in the limiting hole (71) under the action of the elastic piece (83) to realize the lifting locking function of the second backrest (52).

10. A fold-over safety device for a multi-functional child seat for a two-wheeled vehicle as claimed in any one of claims 1 to 9, characterised in that Including: Pull rod (47), indirectly connected with the folding locking piece (43), convenient for limiting the folding locking piece (43) from a distance; Connecting rod (48), a rigid piece, used to connect the folding locking piece (43) and the pull rod (47); Rear vertical frame (49), directly or indirectly fixed to the folding mechanism (4), the pull rod (47) is slidably connected to the rear vertical frame (49); Lock body (91), used to realize the anti-theft function, directly or indirectly fixed to the backrest (5); Locking piece (92), connected to the lock body (91), used to limit the folding locking piece (43), or the connecting rod (48), or the pull rod (47).

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