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 on a two-wheeled vehicle such as a bicycle or an electric bicycle, a multifunctional child seat for a two-wheeled vehicle and a folding safety device for the multifunctional child seat are provided. A backrest part and a side wing part of the multifunctional child seat can be folded forward together with a rear base, and form an enclosed space together with a front base and a handrail part. The front base and the rear base are hinged by a folding mechanism, and after the enclosed space is formed, a folding locking part enters a slot and limits the folding mechanism, so that the vehicle articles can be stored. The folding safety device is used to lock the folding locking part, and after the position of the folding locking part is locked, on the one hand, the reliability of the folding mechanism is improved, and on the other hand, the theft-proof storage of the vehicle articles is realized.

Description

Technical Field

[0001] This application relates to the field of child seats, and more particularly to a multi-functional child seat for two-wheeled vehicles and its folding safety device. Background Technology

[0002] Two-wheeled vehicles such as bicycles 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 kindergarten children under six years old to have a fixed seat installed on the back of a bicycle or electric bicycle, and that they wear a safety helmet. The "Safety Technical Specifications for Electric Bicycles" (GB17761-2018) restricts technical parameters such as wheelbase and saddle length for electric bicycles, significantly limiting their carrying capacity. Adding a rear-mounted 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 on bicycles 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

[0003] To address the challenge of simultaneously accommodating passenger carrying and cargo storage on two-wheeled vehicles such as bicycles and electric bicycles, this application 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 limit its movement, the multi-functional child seat can effectively carry cargo, achieving a dual-purpose design.

[0004] According to one aspect of this application, a multi-functional child seat for a two-wheeled vehicle (Type I) is provided, comprising: a folding mechanism, a base, an armrest, a backrest, and side wings.

[0005] The folding mechanism includes a first folding member, a folding locking member, and a second folding member. The folding locking member is slidably disposed on the second folding member, or hinged to the second folding member, or detachably connected to the second folding member. The first folding member has a slot that can cooperate with the folding locking member to bidirectionally limit the folding mechanism when loaded, preventing it from rotating. It should be noted that: designing the folding locking member to slide obliquely on the second folding member achieves self-locking of the folding mechanism; designing the folding locking member to be hinged to the second folding member, utilizing the center of gravity of the folding locking member, also achieves self-locking of the folding mechanism; designing a threaded folding locking member detachably connected to the second folding mechanism also achieves self-locking of the folding mechanism. Another aspect of this application also provides a folding safety device for a two-wheeled vehicle multi-functional child seat, which can limit the folding locking member; the elastic element is not a necessary component.

[0006] The base component comprises a front base and a rear base, with the rear base hinged to the front base via a folding mechanism. In the loaded position, the front base only partially encloses the bottom of the seat. The shape of the front base is not limited, as long as it can be connected to the rear coat rack or rear cargo platform of a two-wheeled bicycle. GB / T 22790-2023, "Requirements and Test Methods for Luggage Racks on Two-Wheeled Bicycles," only specifies that the maximum width of the luggage rack platform is 175 mm, and specifically stipulates that the width of the flat portion of the coat rack above the rear wheel must not exceed 175 mm. GB / T 23160-2008, "Safety Requirements and Test Methods for Child Seats on Imported and Exported Bicycles," specifies the length of different types of child seats, including: the A15 type rear seat length between 160 mm and 220 mm, and the A22 type rear seat length between 170 mm and 230 mm. There is no limit to the length of the rear rack or luggage rack platform. Various lengths of rear racks or luggage racks exist on the market. There will always be rear racks or luggage rack platforms that are longer than the front base. After the front base is fixed, the maximum angle of the rear base flipping backward can still be limited (a rear rack or luggage rack platform with a length sufficient to limit the rear base flipping backward can be manufactured).

[0007] The handrail is used by young children to hold onto when the vehicle is in use, and can also act as a partial barrier in the front to prevent large items such as helmets from falling off when the vehicle is in use. The handrail is fixed to the front base or can be detachably connected to the front base.

[0008] The backrest is connected to the rear base. When the backrest and rear base are folded forward and bidirectionally limited by the folding mechanism, the base, armrest, and backrest together form an enclosed structure. This application involves outdoor use in rain and snow, and making the backrest a one-piece waterproof design would be beneficial for long-term storage. However, many people are accustomed to covering parked vehicles with rain gear, so a one-piece waterproof design for the backrest is not necessary; the holes in the backrest should be designed to prevent helmets from falling out.

[0009] The side wings connect to the left and right sides of the backrest. The side wings enclose the base, armrests, and backrest from the side, forming a unified structure. The degree of enclosure provided by the side wings is not limited, as long as the helmet does not fall off. The side wings and backrest can be two integrally molded parts of the same material, or they can be composed of two parts of the same or different materials. Outdoor use may involve rain and snow; making the side wings one-piece waterproof would be beneficial for storing items for extended periods while carrying cargo. However, many people are accustomed to covering parked vehicles with rain gear, so making the side wings one-piece waterproof is not necessary.

[0010] A folding mechanism of a multi-functional child seat for a two-wheeled vehicle (Type I) creates an enclosed space. A folding lock limits the folding mechanism, enabling the multi-functional child seat for a two-wheeled vehicle (Type I) to carry cargo. In the cargo-carrying state, the folding lock limits the rearward flip of the backrest, thus ensuring reliable storage of items. Unlocking the folding lock in the cargo-carrying state allows the backrest to flip backward until it is stopped by the rear coat rack or luggage rack platform of the two-wheeled vehicle, thus activating the multi-functional child seat for a two-wheeled vehicle (Type I) for carrying passengers.

[0011] Furthermore, the above technical solution needs to utilize the environmental characteristics of the rear rack or luggage rack platform of a two-wheeled vehicle. In order to enable the seat to be installed on the rear rack or luggage rack platform that is insufficient to limit the rear base from flipping backward, the above technical solution is improved by making the slot cooperate with the folding locking component to limit the folding mechanism in one direction when the vehicle is in use with passengers, thereby limiting the maximum unfolding angle of the folding mechanism and thus limiting the maximum angle of the rear base and backrest component from flipping backward.

[0012] Furthermore, the armrest of the above-mentioned technical solution does not provide sufficient protection for the front when the vehicle is in use with cargo, making it inconvenient to store small items. The above-mentioned technical solution is improved by introducing a front barrier to provide more adequate protection for the front of the two-wheeled vehicle's multi-functional child seat when the vehicle is in use with cargo. The front barrier is hinged to the backrest and can be flipped backward along with the backrest.

[0013] Optionally, the front base of the above technical solution does not provide sufficient protection for the bottom when the cargo is being used, making it inconvenient to store small items. The above technical solution is improved by introducing a bottom enclosure component to form a barrier for the bottom when the cargo is being used. The bottom enclosure component is hinged to the front base, and when the passenger is being used, the bottom enclosure component can be flipped backward and placed on the rear base.

[0014] Furthermore, the backrest is not restrained when passengers are in use, making it inconvenient to install and use seat belts. To improve the safety of children, the above technical solution is improved by designing a slot that can cooperate with the folding locking mechanism, allowing the folding locking mechanism to cooperate with the slot and bidirectionally restrain the folding mechanism when passengers are in use. The backrest, which is bidirectionally restrained when passengers are in use, facilitates the fixing of seat belts.

[0015] According to another aspect of this application, a two-wheeled vehicle multi-functional child seat (Type II) is provided, comprising: a folding mechanism, a base, an armrest, a backrest, and side wings.

[0016] The folding mechanism includes a first folding component, a folding locking component, and a second folding component. The folding locking component is slidably disposed 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 to bidirectionally limit the folding mechanism in the loaded state, preventing the folding mechanism from rotating. One of the first and second folding components has a positioning protrusion, and the other has a positioning slot. The positioning protrusion and positioning slot limit the maximum unfolding angle of the folding mechanism in the loaded state, thereby limiting the maximum rearward tilting angle of the backrest and rear base. It should be noted that: designing the folding locking component to slide obliquely on the second folding component can achieve self-locking of the folding mechanism; designing the folding locking component to be hinged to the second folding component, utilizing the center of gravity of the folding locking component, can also achieve self-locking of the folding mechanism; designing the threaded folding locking component to be detachably connected to the second folding mechanism can also achieve self-locking of the folding mechanism. Another aspect of this application provides a folding safety device for a multi-functional child seat for a two-wheeled vehicle, which can limit the folding locking element, and the elastic element is not a necessary component.

[0017] The base assembly comprises a front base and a rear base, which are hinged to the front base via a folding mechanism. In the cargo-carrying configuration, the front base only partially encloses the bottom of the seat. The shape of the front base is not limited, as long as it can be connected to the rear coat rack or luggage rack platform of a two-wheeled vehicle.

[0018] The handrail is used by young children to hold onto when the vehicle is in use, and can also act as a partial barrier in the front to prevent large items such as helmets from falling off when the vehicle is in use. The handrail is fixed to the front base or can be detachably connected to the front base.

[0019] The backrest is connected to the rear base. When the backrest and rear base are folded forward and bidirectionally limited by the folding mechanism, the base, armrest, and backrest together form an enclosed structure. This application involves outdoor use in rain and snow, and making the backrest a one-piece waterproof design would be beneficial for long-term storage. However, many people are accustomed to covering parked vehicles with rain gear, so a one-piece waterproof design for the backrest is not necessary; the holes in the backrest should be designed to prevent helmets from falling out.

[0020] The side wings connect to the left and right sides of the backrest. The side wings enclose the base, armrests, and backrest from the side, forming a unified structure. The degree of enclosure provided by the side wings is not limited, as long as the helmet does not fall off. The side wings and backrest can be two integrally molded parts of the same material, or they can be composed of two parts of the same or different materials. Outdoor use may involve rain and snow; making the side wings one-piece waterproof would be beneficial for storing items for extended periods while carrying cargo. However, many people are accustomed to covering parked vehicles with rain gear, so making the side wings one-piece waterproof is not necessary.

[0021] A folding mechanism of a two-wheeled multi-functional child seat (Type II) creates an enclosed space, and a folding lock limits the folding mechanism, enabling the two-wheeled multi-functional child seat (Type II) to carry cargo. In the cargo-carrying state, the folding lock limits the rearward flipping of the backrest, thus ensuring reliable storage of items. Unlocking the folding lock in the cargo-carrying state allows the backrest to flip backward until it is stopped by the folding mechanism, thus enabling the two-wheeled multi-functional child seat (Type II) to enter the passenger-carrying state.

[0022] Furthermore, the armrest of the above-mentioned technical solution does not adequately protect the front of the vehicle when carrying cargo, making it inconvenient to store small items. Therefore, the technical solution is improved by introducing a front baffle to more effectively protect the front of the multi-functional child seat in the two-wheeled vehicle when carrying cargo. The front baffle is hinged to the backrest and can flip backward along with it. The front baffle can be hinged to either side of the backrest. When hinged to the inside of the backrest, it can be placed inside the backrest when carrying passengers; when hinged to the outside of the backrest, it can be placed outside the backrest when carrying passengers.

[0023] Optionally, the front base of the above technical solution does not provide sufficient protection for the bottom when the cargo is being used, making it inconvenient to store small items. The above technical solution is improved by introducing a bottom enclosure component to form a barrier for the bottom when the cargo is being used. The bottom enclosure component is hinged to the front base, and when the passenger is being used, the bottom enclosure component can be flipped backward and placed on the rear base.

[0024] Furthermore, the backrest is not restrained when passengers are in use, making it inconvenient to install and use seat belts. To improve the safety of children, the above technical solution is improved by designing a slot that can cooperate with the folding locking mechanism, allowing the folding locking mechanism to cooperate with the slot and bidirectionally restrain the folding mechanism when passengers are in use. The backrest, which is bidirectionally restrained when passengers are in use, facilitates the fixing of seat belts.

[0025] When storing items for extended periods while they are in cargo-carrying mode, theft prevention needs to be considered; when carrying passengers, the folding locking mechanism may accidentally unlock.

[0026] Therefore, according to another aspect of this application, a folding safety device is provided for the aforementioned two-wheeled vehicle multi-functional child seat, comprising: a rear pull rod, front and rear linkages, longitudinal connectors, lateral connectors, a lock body, and a lock plate.

[0027] The longitudinal connector is fixed to the folding mechanism for mounting the rear tie rod. The longitudinal connector can be hollow or solid, and its extension path can be straight or curved.

[0028] The introduction of the lateral connector provides a wider range of connection points for the lock body. When there is more than one longitudinal connector, the lateral connector can simultaneously connect multiple longitudinal connectors, thus reinforcing the seat.

[0029] The rear pull rod is slidably mounted on the longitudinal connecting member and indirectly connected to the folding locking member through the front and rear connecting rods of the locking member.

[0030] The front and rear connecting rods are used to connect the folding locking member and the rear pull rod. The movement of the folding locking member is transmitted to the rear pull rod through the front and rear connecting rods.

[0031] The lock body is fixed to the horizontal connecting member to achieve the anti-theft function. The lock plate is connected to the lock body and is used to directly or indirectly limit the flip-up locking member. The lock plate can be used to limit the pull rod or the front and rear connecting rods, and indirectly limit the flip-up locking member.

[0032] When the folding locking element slides longitudinally, the rear pull rod slides back and forth along with it, driven by the front and rear connecting rods. When the folding locking element rotates around the hinge point, the rear pull rod slides back and forth along with it, driven by the front and rear connecting rods. When the folding locking element slides laterally, the rear pull rod slides laterally left and right along with it, driven by the front and rear connecting rods. When the folding locking element is screwed into the first folding element, the rear connecting rod is sleeved on the folding locking element. At this time, the rear pull rod and the front and rear connecting rods do not rotate, and the rear pull rod slides laterally along with it, driven by the front and rear connecting rods.

[0033] The introduction of a folding safety device can not only prevent theft of items when the vehicle is in use with cargo, but also prevent the folding mechanism from being accidentally unlocked when the vehicle is in use with passengers. Attached Figure Description

[0034] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is a schematic diagram of the structure of the first embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I) of this application when used for carrying cargo.

[0036] Figure 2 This is a schematic diagram of the structure of the first embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I) of this application when used with a passenger.

[0037] Figure 3 This is a schematic diagram of the structure of a second embodiment of a two-wheeled vehicle multi-functional child seat (type 1) of this application during state switching.

[0038] Figure 4 This is a schematic diagram of the structure of a second embodiment of a two-wheeled vehicle multi-functional child seat (type 1) of this application when used with a passenger.

[0039] Figure 5 This is a schematic diagram of the structure of a second embodiment of a two-wheeled vehicle multi-functional child seat (type 1) of this application when used for carrying cargo.

[0040] Figure 6 This is a schematic diagram of the structure of a third embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I) of this application during state switching.

[0041] Figure 7 This is a structural schematic diagram of the third embodiment of a multi-functional child seat for two-wheeled vehicles (Type I) of this application when used with a passenger.

[0042] Figure 8 This is a structural schematic diagram of the third embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I) of this application when used for carrying cargo.

[0043] Figure 9 This is a schematic diagram of the structure during state switching of the fourth embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I) of this application.

[0044] Figure 10 This is a structural schematic diagram of the fourth embodiment of a multi-functional child seat for two-wheeled vehicles (Type I) of this application when used with a passenger.

[0045] Figure 11 This is a schematic diagram of the structure of the fourth embodiment of a multi-functional child seat for two-wheeled vehicles (Type I) of this application when used for carrying cargo.

[0046] Figure 12This is a schematic diagram of the structure of the first embodiment of the two-wheeled vehicle multi-functional child seat (type 2) of this application during state switching.

[0047] Figure 13 This is a schematic diagram of the structure of the first embodiment of a two-wheeled vehicle multi-functional child seat (type 2) of this application when used with a passenger.

[0048] Figure 14 This is a schematic diagram of the structure of the first embodiment of a two-wheeled vehicle multi-functional child seat (type 2) of this application when used for carrying cargo.

[0049] Figure 15 This is a schematic diagram of the structure of a second embodiment of a two-wheeled vehicle multi-functional child seat (type II) during state switching.

[0050] Figure 16 This is a schematic diagram of the structure of the second embodiment of a two-wheeled vehicle multi-functional child seat (type II) of this application when used for carrying cargo.

[0051] Figure 17 This is a schematic diagram of the structure of the second embodiment of a two-wheeled vehicle multi-functional child seat (type II) of this application when used with a passenger.

[0052] Figure 18 This is a schematic diagram of the structure during state switching of the third embodiment of a two-wheeled vehicle multi-functional child seat (type 2) of this application.

[0053] Figure 19 This is a schematic diagram of the structure of the third embodiment of a two-wheeled vehicle multi-functional child seat (type 2) of this application when used with a passenger.

[0054] Figure 20 This is a structural schematic diagram of the third embodiment of a two-wheeled vehicle multi-functional child seat (type 2) of this application when used for carrying cargo.

[0055] Figure 21 This is a schematic diagram of the structure of the first embodiment of the folding safety device of this application.

[0056] Figure 22 This is a schematic diagram of the structure of the second embodiment of the folding safety device of this application.

[0057] Figure 23 This is a schematic diagram of the structure of the third embodiment of the folding safety device of this application.

[0058] Figure 24 This is a partial exploded view of the third embodiment of the folding safety device of this application. Detailed Implementation

[0059] 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."

[0060] 1. A first embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I)

[0061] like Figure 1 and Figure 2 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0062] like Figure 1 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, the backrest component 4, and the side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, the backrest component 4 is connected to the rear end of the rear base component 22, and the armrest component 3 is fixed to the front base 21.

[0063] like Figure 2 As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 is slidably connected to the second folding member 12. The first folding member 11 is provided with a slot 14, which can cooperate with the folding locking member 13 to bidirectionally limit the folding mechanism 1 in the cargo-carrying state. In the cargo-carrying state, operating the folding locking member 13 to enter the slot 14 allows for the storage of items carried in the vehicle.

[0064] In this embodiment, there are two first folding members 11 and two second folding members 12, and one folding locking member 13 with a circular cross-section. The folding locking member 13 slides on the second folding member 12 and can slide back and forth on the second folding member 12. When the rear base 22 folds forward, the second folding member 12 and the folding locking member 13 flip forward together with the rear base 22 around the hinge point. In this embodiment, the backrest member 4 and the side wing member 5 are two parts integrally formed from the same material.

[0065] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 2 As shown, another type is the cargo-carrying usage state, such as... Figure 1 As shown. The specific process of the two state transitions is as follows:

[0066] When the backrest 4 is pushed in passenger-carrying mode, the second folding member 12, the folding locking member 13, the rear base 22, the backrest 4, and the side wing member 5 all flip forward together. When the backrest 4 flips and approaches the armrest 3, the armrest 3, the front base 21, the rear base 22, the backrest 4, and the side wing member 5 together form an enclosing structure. After the second folding member 12 and the folding locking member 13 flip around the hinge point, the folding locking member 13 slides on the second folding member 12 under the action of gravity and embeds into the slot 14 of the first folding member 11, thus locking the current folding mechanism 1. At this time, the backrest 4, the rear base 22, and the side wing member 5 are all bidirectionally limited, and the seat enters the cargo-carrying mode.

[0067] When in cargo-carrying mode, pull the folding lock 13 and then fold the backrest 4 backward so that the rear base 22 is supported by the two-wheeled vehicle's rear coat rack, and the seat enters the passenger-carrying mode.

[0068] 2. A second embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I)

[0069] like Figure 3 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0070] like Figure 4 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, the backrest component 4, and the side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, the backrest component 4 is connected to the rear end of the rear base component 22, and the armrest component 3 is detachably connected to the front base 21.

[0071] like Figure 5 As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 slides laterally on the second folding member 12. The first folding member 11 has a slot 14, which can cooperate with the folding locking member 13 to bidirectionally limit the folding mechanism 1 when in use with cargo. When in use with cargo, operating the folding locking member 13 to enter the slot 14 allows for the storage of items in the vehicle.

[0072] Furthermore, in the manned use state, the folding locking member 13 and the slot 14 of this embodiment can cooperate with each other to limit the maximum unfolding angle of the folding mechanism 1.

[0073] In this embodiment, the folding locking member 13 is laterally slidably mounted on the second folding member 12. The second folding member 12 has a pentagonal hole on one side and a circular hole on the other side, the radius of which is larger than the radius of the circumcircle of the pentagon. The folding locking member 13 is partly a pentagonal prism and partly a cylinder, the radius of which is smaller than the radius of the incircle of the pentagon. After the rear base 22 is rotated forward 72 degrees, the first folding member 12 and the folding locking member 13 rotate together with the rear base 22 around the hinge point. In this embodiment, the first folding member 11 and the rear base 22 are two integrally formed parts of the same material, and the second folding member 12 and the front base 21 are two integrally formed parts of the same material.

[0074] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 4 As shown, another type is the cargo-carrying usage state, such as... Figure 5 As shown. By operating the folding locking member 13 and disengaging its pentagonal prism from the pentagonal hole of the second folding member 12, the restriction on the folding mechanism 1 can be released to switch the usage state.

[0075] 3. A third embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I)

[0076] like Figure 6 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0077] like Figure 7 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, backrest component 4, and side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, which is connected to the rear end of the rear base component 22. The armrest component 3 and the front base 21 are two integrally formed parts. In this embodiment, the front base 21 has a large openwork design, but this does not affect the storage of large items such as helmets.

[0078] like Figure 8 As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 is detachably connected to the second folding member 12. The first folding member 11 is provided with a slot 14, which can cooperate with the folding locking member 13 to bidirectionally limit the folding mechanism 1 in the cargo-carrying state. In the cargo-carrying state, operating the folding locking member 13 to enter the slot 14 allows for the storage of items in the vehicle. In this embodiment, the first folding member 11 is fixed to the rear base 22, and the second folding member 12 is fixed to the front base 21.

[0079] In passenger-carrying mode, the folding locking member 13 and the slot 14 of this embodiment can cooperate with each other to limit the maximum unfolding angle of the folding mechanism 1. This embodiment also includes a front baffle 7 hinged to the backrest member 4 to more fully block the two-wheeled multi-functional child seat from the front when carrying cargo. When carrying cargo, the forward flip of the front baffle 7 is limited by the armrest member 3; when carrying passengers, the front baffle 7 can be placed on the backrest member 4.

[0080] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 7 As shown, another type is the cargo-carrying usage state, such as... Figure 8 As shown. By rotating and flipping the locking member 13, it can be moved into the slot 14 to limit the folding mechanism 1.

[0081] 4. A fourth embodiment of a multi-functional child seat for a two-wheeled vehicle (Type I).

[0082] like Figure 9 and Figure 11 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0083] like Figure 10 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, the backrest component 4, and the side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, the backrest component 4 is connected to the rear end of the rear base component 22, and the armrest component 3 is detachably connected to the front base 21.

[0084] like Figure 10 As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 is hinged to the second folding member 12. The first folding member 11 is provided with a slot 14, which can cooperate with the folding locking member 13 to bidirectionally limit the folding mechanism 1 in the cargo-carrying state. In the cargo-carrying state, operating the folding locking member 13 to enter the slot 14 allows for the storage of items carried in the vehicle.

[0085] In the manned use state, the folding locking member 13 and the slot 14 of this embodiment can cooperate with each other to limit the maximum unfolding angle of the folding mechanism 1.

[0086] This embodiment also includes a bottom panel 8 hinged to the front base 21, used to more adequately protect the bottom of the two-wheeled multi-functional child seat when carrying cargo. The bottom panel 8 can be flipped rearward and placed on the rear base 22.

[0087] In this embodiment, the folding locking member 13 and the slot 14 can cooperate with each other to unidirectionally restrict the folding mechanism 1 in the passenger-carrying state, so that the two-wheeled vehicle multi-functional child seat cannot be transformed from the passenger-carrying state to the cargo-carrying state.

[0088] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 10 As shown, another type is the cargo-carrying usage state, such as... Figure 11 As shown. The flipping locking member 13 enters the slot 14 under the action of gravity, thereby limiting the folding mechanism 1.

[0089] 5. A first embodiment of a multi-functional child seat for a two-wheeled vehicle (Type II).

[0090] like Figure 12 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0091] like Figure 13 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, the backrest component 4, and the side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, the backrest component 4 is connected to the rear end of the rear base component 22, and the armrest component 3 is fixed to the front base 21.

[0092] like Figure 14 As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 is slidably connected to the second folding member 12. The first folding member 11 has a slot 14 that cooperates with the folding locking member 13 to bidirectionally limit the folding mechanism 1 in the cargo-carrying state. In the cargo-carrying state, operating the folding locking member 13 to enter the slot 14 allows for the storage of items carried in the vehicle. The second folding member 12 has a positioning protrusion 15, and the first folding member 11 has a positioning slot 16. In the passenger-carrying state, the positioning protrusion 15 and the positioning slot 16 limit the maximum unfolding angle of the folding mechanism 1.

[0093] In this embodiment, there are two first folding members 11 and two second folding members 12, and one folding locking member 13 with a circular cross-section. The folding locking member 13 slides on the second folding member 12 and can slide back and forth on the second folding member 12. When the rear base 22 folds forward, the second folding member 12 and the folding locking member 13 flip forward together with the rear base 22 around the hinge point. In this embodiment, the backrest member 4 and the side wing member 5 are two parts integrally formed from the same material.

[0094] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 13 As shown, another type is the cargo-carrying usage state, such as... Figure 14 As shown. The specific process of the two state transitions is as follows:

[0095] When the backrest 4 is pushed in passenger-carrying mode, the second folding member 12, the folding locking member 13, the rear base 22, the backrest 4, and the side wing member 5 all flip forward together. When the backrest 4 flips and approaches the armrest 3, the armrest 3, the front base 21, the rear base 22, the backrest 4, and the side wing member 5 together form an enclosing structure. After the second folding member 12 and the folding locking member 13 flip around the hinge point, the folding locking member 13 slides on the second folding member 12 under the action of gravity and embeds into the slot 14 of the first folding member 11, thus locking the current folding mechanism 1. At this time, the backrest 4, the rear base 22, and the side wing member 5 are all bidirectionally limited, and the seat enters the cargo-carrying mode.

[0096] When in cargo-carrying mode, pull the folding lock 13 and then fold the backrest 4 backward until the positioning protrusion 15 is limited by the positioning slot 16, and the seat enters the passenger-carrying mode.

[0097] 6. A second embodiment of a multi-functional child seat for a two-wheeled vehicle (Type II)

[0098] like Figure 15 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0099] like Figure 16 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, backrest component 4, and side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, which is connected to the rear end of the rear base component 22. The armrest component 3 and the front base 21 are two integrally formed parts. In this embodiment, the front base 21 has a large open space, but this does not affect the storage of large items such as helmets.

[0100] like Figure 17As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 is detachably connected to the second folding member 12. The first folding member 11 has a slot 14, which can cooperate with the folding locking member 13 to bidirectionally limit the folding mechanism 1 in the cargo-carrying state. In the cargo-carrying state, operating the folding locking member 13 into the slot 14 allows for the storage of items carried in the vehicle. The second folding member 12 has a positioning protrusion 15, and the first folding member 11 has a positioning slot 16. In the passenger-carrying state, the positioning protrusion 15 and the positioning slot 16 limit the maximum unfolding angle of the folding mechanism 1. In this embodiment, the first folding member 11 is fixed to the rear base 22, and the second folding member 12 is fixed to the front base 21.

[0101] This embodiment also includes a front baffle 7 hinged to the backrest 4, used to more fully enclose the two-wheeled multi-functional child seat from the front when carrying cargo. When carrying cargo, the forward flip of the front baffle 7 is limited by the armrest 3, and when carrying passengers, the front baffle 7 can be placed inside the backrest 4.

[0102] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 17 As shown, another type is the cargo-carrying usage state, such as... Figure 16 As shown. By rotating and flipping the locking member 13, it can be moved into the slot 14 to limit the folding mechanism 1.

[0103] 7. A third embodiment of a multi-functional child seat for a two-wheeled vehicle (Type II).

[0104] like Figure 18 As shown, this embodiment provides a multi-functional child seat for a two-wheeled vehicle, comprising: a folding mechanism 1, a base 2, an armrest 3, a backrest 4, and side wings 5.

[0105] like Figure 19 As shown, the base component 2 includes a front base 21 and a rear base 22, which are hinged together by a folding mechanism 1. The rear base 22, the backrest component 4, and the side wing component 5 can all fold forward together by swinging. The side wing component 5 is connected to the left and right sides of the backrest component 4, the backrest component 4 is connected to the rear end of the rear base component 22, and the armrest component 3 is detachably connected to the front base 21.

[0106] like Figure 20As shown, the folding mechanism 1 includes a first folding member 11, a second folding member 12, and a folding locking member 13. The folding locking member 13 is hinged to the second folding member 12. The first folding member 11 has a slot 14 that can cooperate with the folding locking member 13 to bidirectionally limit the folding mechanism 1 in the cargo-carrying state. In the cargo-carrying state, operating the folding locking member 13 to enter the slot 14 allows for the storage of items carried in the vehicle. The first folding member 11 is fixed to the front base 21, and the second folding member 12 is fixed to the rear base 22. The first folding member 11 has a positioning protrusion 15, and the second folding member 12 has a positioning slot 16. In the passenger-carrying state, the positioning protrusion 15 and the positioning slot 16 limit the maximum unfolding angle of the folding mechanism 1.

[0107] This embodiment also includes a bottom panel 8 hinged to the front base 21, used to more adequately protect the bottom of the two-wheeled multi-functional child seat when carrying cargo. The bottom panel 8 can be flipped rearward and placed on the rear base 22.

[0108] In this embodiment, the folding locking member 13 and the slot 14 can cooperate with each other to unidirectionally restrict the folding mechanism 1 in the passenger-carrying state, so that the two-wheeled vehicle multi-functional child seat cannot be transformed from the passenger-carrying state to the cargo-carrying state.

[0109] The seat provided in this embodiment has two usage states: one is the passenger-carrying usage state, as shown below. Figure 19 As shown, another type is the cargo-carrying usage state, such as... Figure 20 As shown. The flipping locking member 13 enters the slot 14 under the action of gravity, thereby limiting the folding mechanism 1.

[0110] 8. First embodiment of the folding safety device

[0111] The first embodiment of the folding safety device is as follows: Figure 21 As shown, it includes: a rear pull rod 17, front and rear connecting rods 18, longitudinal connecting member 19, lateral connecting member 20, lock body 91, lock plate 92, and a seat as described in the first embodiment of a two-wheeled vehicle multi-functional child seat (type 2).

[0112] The longitudinal connector 19 is fixed to the second folding member 12, and the rear pull rod 17 is slidably disposed on the longitudinal connector 19 and indirectly connected to the folding locking member 13 through the front and rear connecting rods 18. The movement of the folding locking member 13 is transmitted to the rear pull rod 17 through the front and rear connecting rods 18, and the rear pull rod 17 slides longitudinally back and forth under the drive of the front and rear connecting rods 18.

[0113] The transverse connector 20 is connected to the longitudinal connector 19 and is used to install the lock body 91. In this embodiment, the transverse connector 20 is connected to two longitudinal connectors 19 at the same time, which can reinforce the seat.

[0114] The lock body 91 is fixed to the transverse connecting member 20, and the lock plate 92 is connected to the lock body 91. Operating the lock body 91 causes the lock plate 92 to move, and the pull rod 17 after limiting the position can limit the flip-lock member 13 as well.

[0115] The introduction of a folding safety device solves both the problem of preventing theft when storing items for extended periods while carrying cargo and the problem of improving the reliability of the folding mechanism when carrying passengers.

[0116] 9. A second embodiment of the folding safety device

[0117] The second embodiment of the folding safety device is as follows: Figure 22 As shown, it includes: a rear pull rod 17, front and rear connecting rods 18, longitudinal connecting member 19, lateral connecting member 20, lock body 91, lock plate 92, and a seat as described in the fourth embodiment of a two-wheeled vehicle multi-functional child seat (Type I).

[0118] The longitudinal connector 19 is fixed to the second folding member 12, and the rear pull rod 17 is slidably disposed on the longitudinal connector 19 and indirectly connected to the folding locking member 13 through the front and rear connecting rods 18. The movement of the folding locking member 13 is transmitted to the rear pull rod 17 through the front and rear connecting rods 18, and the rear pull rod 17 slides longitudinally back and forth under the drive of the front and rear connecting rods 18.

[0119] The transverse connector 20 is connected to the longitudinal connector 19 and is used to install the lock body 91. In this embodiment, the transverse connector 20 is connected to two longitudinal connectors 19 at the same time, which can reinforce the seat.

[0120] The lock body 91 is fixed to the transverse connecting member 20, and the lock plate 92 is connected to the lock body 91. Operating the lock body 91 causes the lock plate 92 to move, and the pull rod 17 after limiting the position can limit the flip-lock member 13 as well.

[0121] The main difference from the first embodiment of the folding safety device is that: in this embodiment, the folding locking member 13 of the seat is hinged to the second folding member 12, one end of the front and rear connecting rod 18 is hinged to the folding locking member 13, and the other end is fixed to the rear pull rod 17.

[0122] 10. A third embodiment of the folding safety device

[0123] The third embodiment of the folding safety device is as follows: Figure 23 and Figure 24 As shown, it includes: a rear pull rod 17, front and rear connecting rods 18, longitudinal connecting member 19, lateral connecting member 20, lock body 91, lock plate 92, and a seat as described in the third embodiment of a two-wheeled vehicle multi-functional child seat (Type I).

[0124] The main difference from the first embodiment of the folding safety device is that: in this embodiment, the rear pull rod 17 is slidably mounted on the longitudinal connecting member 19, one end of the front and rear connecting rods 18 is sleeved on the folding locking member 13, and the other end is fixed to the rear pull rod 17; when the folding locking member 13 is rotated to adjust its depth, the front and rear connecting rods 18 sleeved on the folding locking member 13, together with the rear pull rod 17, move laterally.

[0125] In this embodiment, there is one longitudinal connector 19. The locking plate 92 is fixed to the lock body 91, and the lock body 91 is fixed to the longitudinal connector 19 via the transverse connector 20. By manipulating the lock body 91, the locking plate 92 is rotated, which restricts the transverse movement of the front and rear connecting rods 18, thereby limiting the folding locking member 13. After being limited, the folding locking member 13 cannot be unscrewed from the first folding member 11, which improves the reliability of the folding mechanism 1 in the passenger-carrying state and realizes the anti-theft storage of items in the vehicle in the cargo-carrying state.

[0126] This application 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, a folding mechanism 1 is an indispensable technical feature. The folding mechanism 1 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 1. The first two independent claims outline different structures of the folding mechanism 1, while the third independent claim expands upon it, making the unlocking operation of the folding mechanism 1 more convenient, the limiting function of the folding mechanism 1 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, include: Folding mechanism (1), the folding mechanism (1) includes a first folding part (11), a second folding part (12) and a folding locking part (13). The folding locking part (13) is slidably disposed on the second folding part (12), or detachably connected to the second folding part (12), or hinged to the second folding part (12). The first folding part (11) is provided with a slot (14). The slot (14) can cooperate with the folding locking part (13) to limit the folding mechanism (1) in both directions when it is in use with a load, so that the folding mechanism (1) cannot rotate. The base component (2) includes a front base (21) and a rear base (22). The rear base (22) is hinged to the front base (21) via the folding mechanism (1). The front base (21) is connected to the rear rack of the two-wheeled vehicle. When the vehicle is in use with cargo, the front base (21) only provides partial enclosure at the bottom, thereby reducing obstruction to the child's legs when the vehicle is in use with passengers. The handrail (3) is used by children to hold onto it when the child is in use, and can partially block the front when the child is in use. The handrail (3) is fixed to the front base (21) or can be detachably connected to the front base (21). The backrest (4) is connected to the rear base (22). When the backrest (4) and the rear base (22) are folded forward and bidirectionally limited by the folding mechanism (1), the base (2), the armrest (3), and the backrest (4) together form an enclosing structure. Side wing (5) is connected to the left and right sides of the backrest (4). The side wing (5) is used to enclose the enclosure structure formed by the base (2), the armrest (3) and the backrest (4) from the side.

2. The multi-functional child seat for a two-wheeled vehicle as described in claim 1, characterized in that: In the manned use state, the slot (14) can cooperate with the folding locking member (13) to unidirectionally limit the folding mechanism (1), limit the maximum unfolding angle of the folding mechanism (1), and thus limit the maximum angle of the rear base (22) and the backrest member (4) to flip backward.

3. The multi-functional child seat for a two-wheeled vehicle as described in claim 2, characterized in that: It also includes a front baffle (7) for more fully forming a baffle around the front of the two-wheeled vehicle multi-functional child seat when in use with cargo, the front baffle (7) being hinged to the backrest (4).

4. A multi-functional child seat for a two-wheeled vehicle as described in claim 2, characterized in that: It also includes a bottom enclosure (8) for more fully forming a enclosure around the bottom of the two-wheeled vehicle multi-functional child seat when in use with cargo. The bottom enclosure (8) is hinged to the front base (21). When in use with passengers, the bottom enclosure (8) can be flipped backward and placed on the rear base (22).

5. A multi-functional child seat for a two-wheeled vehicle as described in claim 4, characterized in that: The slot (14) can also cooperate with the folding locking member (13) to unidirectionally limit the folding mechanism (1) in the passenger use state, so that the two-wheeled vehicle multi-functional child seat cannot be changed from the passenger use state to the cargo use state.

6. A multi-functional child seat for a two-wheeled vehicle, characterized in that, include: Folding mechanism (1), the folding mechanism (1) includes a first folding part (11), a second folding part (12) and a folding locking part (13). The folding locking part (13) is slidably disposed on the second folding part (12), or detachably connected to the second folding part (12), or hinged to the second folding part (12). The first folding part (11) is provided with a slot (14). The slot (14) can cooperate with the folding locking part (13) to limit the folding mechanism (1) in both directions in the cargo-carrying state so that the folding mechanism (1) cannot rotate. One of the first folding part (11) and the second folding part (12) is provided with a positioning protrusion (15). The other of the first folding part (11) and the second folding part (12) is provided with a positioning slot (16). The positioning protrusion (15) and the positioning slot (16) cooperate with each other to limit the maximum unfolding angle of the folding mechanism (1) in the passenger-carrying state. The base component (2) includes a front base (21) and a rear base (22). The rear base (22) is hinged to the front base (21) via the folding mechanism (1). The front base (21) is connected to the rear rack of the two-wheeled vehicle. When the vehicle is in use with cargo, the front base (21) only provides partial enclosure at the bottom, thereby reducing obstruction to the child's legs when the vehicle is in use with passengers. The handrail (3) is used by children to hold onto it when the child is in use, and can partially block the front when the child is in use. The handrail (3) is fixed to the front base (21) or can be detachably connected to the front base (21). The backrest (4) is connected to the rear base (22). When the backrest (4) and the rear base (22) are folded forward and bidirectionally limited by the folding mechanism (1), the base (2), the armrest (3), and the backrest (4) together form an enclosing structure. Side wing (5) is connected to the left and right sides of the backrest (4). The side wing (5) is used to enclose the enclosure structure formed by the base (2), the armrest (3) and the backrest (4) from the side.

7. A multi-functional child seat for a two-wheeled vehicle as described in claim 6, characterized in that: It also includes a front baffle (7) for more fully forming a baffle around the front of the two-wheeled vehicle multi-functional child seat when in use with cargo, the front baffle (7) being hinged to the backrest (4).

8. A multi-functional child seat for a two-wheeled vehicle as described in claim 6, characterized in that: It also includes a bottom enclosure (8) for more fully forming a enclosure around the bottom of the two-wheeled vehicle multi-functional child seat when in use with cargo. The bottom enclosure (8) is hinged to the front base (21). When in use with passengers, the bottom enclosure (8) can be flipped backward and placed on the rear base (22).

9. A multi-functional child seat for a two-wheeled vehicle as described in claim 8, characterized in that: The slot (14) can also cooperate with the folding locking member (13) to unidirectionally limit the folding mechanism (1) in the passenger use state, so that the two-wheeled vehicle multi-functional child seat cannot be changed from the passenger use state to the cargo use state.

10. A folding safety device for a multi-functional child seat for a two-wheeled vehicle according to any one of claims 1 to 9, characterized in that... include: The rear pull rod (17) is indirectly connected to the folding locking member (13), which facilitates limiting the folding locking member (13) from a distance. Front and rear connecting rods (18) are used to connect the folding locking member (13) and the rear pull rod (17). The longitudinal connector (19) is fixed to the folding mechanism (1), and the rear pull rod (17) is slidably mounted on the longitudinal connector (19). The lock body (91) is used to achieve the anti-theft function; Locking plate (92), connected to the lock body (91), is used to limit the folding locking member (13), or the front and rear connecting rod (18), or the rear pull rod (17). A transverse connector (20) is connected to the longitudinal connector (19) and is used to fix the lock body (91).

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