Multifunctional child seat of two-wheeled vehicle and turnover safety device of multifunctional child seat

Abstract

In order to solve the problem that a rear child seat for carrying people and a rear tail box for carrying objects are difficult to consider at the same time, the utility model provides a multifunctional child seat of a two-wheeled vehicle and a turnover safety device mounted on the multifunctional child seat of the two-wheeled vehicle, and the multifunctional child seat of the two-wheeled vehicle aims at solving the problem that the rear child seat for carrying people and the rear tail box for carrying objects are difficult to consider at the same time. The backrest piece and the side wing pieces of the multifunctional child seat of the two-wheeled vehicle can be folded forwards along with the rear base, and an enclosed space is formed by the backrest piece, the side wing pieces, the front base and the front enclosure piece. The front base and the rear base are hinged through the folding mechanism, and after the enclosed space is formed, the folding locking piece enters the clamping groove and limits the folding mechanism, so that the backrest piece and the side wing pieces cannot be unfolded backwards, and the formed enclosed space can be used for storing vehicle-mounted articles. The turnover safety device is used for locking the position of the turnover locking piece, and after the position of the turnover locking piece is locked, on one hand, the reliability of the turnover mechanism is improved, and on the other hand, anti-theft storage of the vehicle-mounted articles is achieved.

Description

[0001] This application claims priority to the Chinese patent application with the application number 2024214518091, the application name "A kind of two-wheeled vehicle multifunctional child seat and its folding safety device", filed with the State Intellectual Property Office on June 24, 2024, the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of child seats, in particular to a two-wheeled vehicle multifunctional child seat and its folding safety device. BACKGROUND

[0003] Bicycles and electric bicycles are commonly used by citizens to pick up children for school because of their convenience in parking. Many cities require the installation of fixed seats on the back seat when children under the age of six ride bicycles or electric bicycles, and safety helmets should be worn when riding electric bicycles or bicycles. The "Electric Bicycle Safety Technical Specification" (GB17761-2018) limits technical parameters such as wheelbase and saddle length of electric bicycles, and the carrying capacity of electric bicycles becomes very limited. After installing a rear safety seat, a trunk cannot be installed, and a safety helmet loses a safe storage space, which also limits the willingness to use high-quality safety helmets. The willingness to use a front basket is not high, on the one hand, the front basket affects the steering feeling after carrying, and on the other hand, the installation of the front basket is not very aesthetic, and the bicycle also faces the problem of no place to store the helmet after installing the rear carrying rack with a fixed seat. SUMMARY

[0004] 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, the present application provides a two-wheeled vehicle multifunctional child seat and its folding safety device. By folding part of the structure of the two-wheeled vehicle multifunctional child seat to form an enclosed space and using the folding safety device to lock the folding lock, the two-wheeled vehicle multifunctional child seat has a carrying function, achieving the effect of one thing serving two purposes.

[0005] According to one aspect of the present application, a two-wheeled vehicle multifunctional child seat (first type) is provided, comprising: a folding mechanism, a base piece, a limiting piece, a front wall piece, a backrest piece, and a side wing piece.

[0006] 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 unidirectionally limit the folding mechanism in the loaded state, preventing the two-wheeled vehicle's multi-functional child seat from changing to a passenger-carrying state. It should be noted that: designing the folding locking member to slide obliquely on the second folding member can achieve 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, can achieve self-locking of the folding mechanism; designing the threaded folding locking member to be detachably connected to the second folding mechanism can also achieve self-locking of the folding mechanism. Another aspect of this application also provides a folding safety device for a two-wheeled vehicle's multi-functional child seat, which can limit the folding locking member; the elastic element is not a necessary component to improve the reliability of the folding mechanism.

[0007] The base component includes a front base and a rear base, which are hinged to the front base via a folding mechanism. The longitudinal length of the rear base is less than the longitudinal length of the rear rack or rear cargo platform of the two-wheeled vehicle. The front base is connected to the rear coat rack of the two-wheeled vehicle. When the rear coat rack is insufficient to support and limit the rear base in passenger use, the front base can be installed in reverse so that the child facing the rear of the vehicle. The longitudinal length of the rear base is less than the longitudinal length of the rear coat rack, ensuring that the front base is always fixed to the rear coat rack when the multi-functional child seat (Type 1) is installed in reverse. After reverse installation, the rear base can be supported and limited by the rear coat rack. The standard GB / T 23160-2008, "Safety Requirements and Test Methods for Imported and Exported Bicycle Child Seats," specifies the lengths of different types of child seats. Specifically, the length of the A15 type rear seat is between 160mm and 220mm, and the length of the A22 type rear seat is between 170mm and 230mm. Since the seat length is less than the rear rack length, the maximum length of the rear base is determined to be between 160mm and 230mm. The "Safety Requirements for Bicycle Child Seats" standard is still under review, and the maximum range of rear base lengths may change after its release.

[0008] The limiting frame includes a front vertical frame and a front longitudinal connecting member. The front vertical frame is used to limit the forward tilting of the front retaining member.

[0009] The front longitudinal connecting piece is used to connect the front vertical frame and the folding mechanism, and is directly fixed to the folding mechanism or indirectly fixed to the folding mechanism through the front base. The front vertical frame and the front longitudinal connecting piece can be hollow or solid, and their extension paths can be straight or curved. The front longitudinal connecting piece, the front vertical frame, the folding mechanism, and the front base can be integrally formed as four parts of the same material, or can be parts of different materials combined with each other.

[0010] The front wall part is used to form a front wall for the multifunctional child seat (the first type) in the carrying state, and is hinged to the front base. The front turning of the front wall part is limited by the front vertical frame.

[0011] The backrest part is connected to the rear base. After the backrest part is folded forward to be close to the front wall part, the front wall part, the front base, the rear base, and the backrest part form a closed structure together. When the multifunctional child seat is used outdoors, it may face rainy and snowy weather. Therefore, it is beneficial to store objects for a long time if the backrest part is made in a waterproof manner. However, many people are used to shielding parked vehicles with rain gear. Therefore, it is not necessary to make the backrest part in a waterproof manner.

[0012] The side wing part is connected to the left and right sides of the backrest part. The side wing part is used to surround the closed structure formed by the front wall part, the front base, the rear base, and the backrest part from the left and right sides. The surrounding degree of the side wing part to the closed structure is not limited, and the helmet can not fall off. The side wing part and the backrest part can be integrally formed as two parts of the same material, or can be two parts of the same material or different materials combined with each other. When the multifunctional child seat is used outdoors, it may face rainy and snowy weather. Therefore, it is beneficial to store objects for a long time in the carrying state if the side wing part is made in a waterproof manner. However, many people are used to shielding parked vehicles with rain gear. Therefore, it is not necessary to make the side wing part in a waterproof manner.

[0013] The folding of the multifunctional child seat (the first type) forms a closed space, and the folding locking part limits the folding mechanism. Therefore, the multifunctional child seat (the first type) has a carrying function. In the carrying state, the front wall part limits the forward turning of the backrest part, and the folding locking part limits the rearward turning of the backrest part. Therefore, the reliable storage of objects is achieved. In the carrying state, the folding locking part is unlocked, the backrest part is turned rearward until the rear base is limited by the rear hanger of the two-wheeled vehicle, and the front wall part is placed on the front base. Therefore, the multifunctional child seat (the first type) enters the carrying state.

[0014] Further, in order to solve the problem that the backrest part is not limited in the forward turning state in the manned use state, which is not conducive to the installation and use of the safety belt, the above technical solution is improved: the folding locking part and the clamping groove are matched with each other to one-way limit the folding mechanism in the manned use state, and further limit the forward turning of the backrest part, so that the multifunctional child seat (the first type) cannot be changed from the manned use state to the cargo use state. The backrest part limited in the forward turning state in the manned use state can fix the safety belt. According to the shape of the folding locking part, the number of clamping grooves is not limited to one or two.

[0015] Optionally, in order to reduce the hindrance of the front base to the legs of the young child, the above technical solution is improved: the front base is divided into a front base moving part and a front base fixed part. One end of the front base moving part is hinged with the front wall blocking part, and the other end is hinged with the front base fixed part. The front base fixed part is hinged with the rear base through the folding mechanism. In the cargo use state, the front base moving part is supported by the front longitudinal connecting part. In the manned use state, the front base moving part and the front wall blocking part can be turned backward, the front base moving part is placed above the rear base, and the front wall blocking part is limited by the backrest part to reduce the hindrance to the legs of the young child.

[0016] In order to eliminate the limitation of environmental features on the size of the rear base, according to one aspect of the present application, a multifunctional child seat for a two-wheeled vehicle (second type) is provided, which comprises a folding mechanism, a base part, a limiting frame, a front wall blocking part, a backrest part and a side wing part.

[0017] The folding mechanism comprises a first folding member, a folding locking member and a second folding member. The folding locking member is slidably arranged on the second folding member, or detachably connected to the second folding member, or hingedly connected to the second folding member. The first folding member is provided with a clamping groove capable of cooperating with the folding locking member to one-way limit the folding mechanism in a passenger carrying state, and limit the unfolding angle of the folding mechanism; and one-way limit the folding mechanism in a cargo carrying state, so that the two-wheeled multifunctional child seat (second type) cannot be converted to the passenger carrying state. The folding locking member is designed to be obliquely slidably arranged on the second folding member, so as to realize self-locking of the folding mechanism; the folding locking member is designed to be hingedly connected to the second folding member, and the center of gravity of the folding locking member can be used to realize self-locking of the folding mechanism; the folding locking member with threads can be detachably connected to the second folding mechanism, and the self-locking of the folding mechanism can also be realized. Another aspect of the application also provides a folding insurance device of a two-wheeled multifunctional child seat, which can limit the folding locking member, and the elastic element is not a necessary component for improving the reliability of the folding mechanism. It should be noted that in the passenger carrying state, the folding mechanism limits and supports the rear base, so as to ensure that the two-wheeled multifunctional child seat (second type) always has the seatability regardless of how it is installed on the two-wheeled vehicle, and the limitation of the rear seat of the two-wheeled vehicle on the length of the rear base is eliminated.

[0018] The base member comprises a front base and a rear base, and the rear base is hingedly connected to the front base through the folding mechanism.

[0019] The limiting frame comprises a front vertical frame and a front longitudinal connecting member. The front vertical frame is used for limiting the forward turning of the front blocking member and is fixed to the front longitudinal connecting member. The front longitudinal connecting member is used for connecting the front vertical frame and the folding mechanism, and the front longitudinal connecting member is directly fixed to the folding mechanism or indirectly fixed to the folding mechanism through the front base. The front vertical frame and the front longitudinal connecting member can be hollow structures or solid structures, and their extension paths can be straight lines or curves. The front longitudinal connecting member, the front vertical frame, the folding mechanism and the front base can be four parts integrally formed of the same material, or parts of different materials can be combined with each other.

[0020] The front blocking member is used for forming a block in front of the two-wheeled multifunctional child seat (second type) in the cargo carrying state, the front blocking member is hingedly connected to the front base, and the forward turning of the front blocking member is limited by the front vertical frame.

[0021] The front blocking member is used for forming a block in front of the two-wheeled multifunctional child seat (second type) in the cargo carrying state, the front blocking member is hingedly connected to the front base, and the forward turning of the front blocking member is limited by the front vertical frame.

[0022] The backrest is connected with the rear base. The maximum angle of the backrest forwardly turning around the hinge point is limited by the front wall. When the backrest is turned forwardly close to the front wall, the front wall, the front base, the rear base and the backrest form a closed structure. When the application is used outdoors, it will face rain and snow. Making the backrest into an integrated waterproof style is beneficial for long-term storage of goods, but many people are used to shielding the parked vehicle with rain gear. Therefore, it is not necessary to make the backrest into an integrated waterproof style. The hole of the backrest can not drop the helmet.

[0023] The side wing is connected to the left and right sides of the backrest. The side wing is used to block the closed structure formed by the front wall, the front base, the rear base and the backrest from the left and right sides. The blocking degree of the side wing to the closed structure is not limited, and the helmet can not fall. The side wing and the backrest can be two parts of the same material, or two parts of the same material or different materials. When used outdoors, it will face rain and snow. Making the side wing into an integrated waterproof style is beneficial for long-term storage of goods in the load carrying state, but many people are used to shielding the parked vehicle with rain gear. Therefore, it is not necessary to make the side wing into an integrated waterproof style.

[0024] The folded part of the multifunctional child seat of the two-wheeled vehicle (second type) forms a closed space and uses the folded locking piece to limit the folding mechanism, so that the multifunctional child seat of the two-wheeled vehicle (second type) has a load carrying function. In the load carrying state, the front wall limits the forward turning of the backrest, and the folded locking piece cooperates with the slot to limit the backward turning of the backrest, so as to realize the storage of goods. In the load carrying state, the folded locking piece cooperates with the slot to limit the backward turning of the backrest, so as to realize the storage of goods.

[0025] Further, in the load carrying state, the backrest is not limited, so that the safety belt lacks a fixed point, and the safety of the child when riding needs to be improved. Therefore, the technical scheme provided by the embodiment of the application is that a slot capable of cooperating with the folded locking piece is designed, so that the folded locking piece and the slot cooperate with each other to bidirectionally limit the folding mechanism in the load carrying state. The backrest bidirectionally limited in the load carrying state can fix the safety belt. According to the different shapes of the folded locking piece, the number of slots is not limited to one or two.

[0026] Optionally, in order to reduce the hindrance of the front base to the legs of the child, the above technical solution is improved: the front base is divided into a front base moving part and a front base fixed part. One end of the front base moving part is hinged to the front wall blocking part, and the other end is hinged to the front base fixed part. The front base fixed part is hinged to the rear base through a folding mechanism. In the object-carrying use state, the front base moving part is supported by the front longitudinal connecting piece. In the human-carrying use state, the front base moving part and the front wall blocking part can be flipped backward, the front base moving part is placed above the rear base, and the front wall blocking part is limited by the backrest part, so that the hindrance to the legs of the child is reduced.

[0027] According to one aspect of the present application, a multifunctional child seat for a two-wheeled vehicle (type III) is provided, comprising a folding mechanism, a base part, a limiting frame, a front wall blocking part, a backrest part, and a side wing part.

[0028] The folding mechanism comprises a first folding piece, a folding locking piece and a second folding piece. The folding locking piece is slidably arranged on the second folding piece, or detachably connected to the second folding piece, or hinged to the second folding piece. The first folding piece is provided with a clamping groove capable of cooperating with the folding locking piece to one-way limit the folding mechanism in the object-carrying state, so that the multifunctional child seat (the third type) of the two-wheeled vehicle cannot be converted to the human-carrying state. One of the first folding piece and the second folding piece is provided with a positioning protrusion, and the other is provided with a positioning clamping groove, which limits the maximum unfolding angle of the folding mechanism in the human-carrying state. In the human-carrying state, the positioning protrusion and the positioning clamping groove limit the unfolding angle of the backrest piece and the rear base, so that the seat always has a seatability regardless of how the seat is installed on the two-wheeled vehicle, and the influence of environmental characteristics is eliminated. The folding locking piece is designed to be inclined and slidably arranged on the second folding piece, so that the self-locking of the folding mechanism can be realized. The folding locking piece is designed to be hinged to the second folding piece, and the self-locking of the folding mechanism can be realized by using the center of gravity of the folding locking piece. The folding locking piece with threads can be detachably connected to the second folding mechanism, and the self-locking of the folding mechanism can also be realized. Another aspect of the present application also provides a folding insurance device for the multifunctional child seat of the two-wheeled vehicle, which can limit the folding locking piece, and the elastic element is not a necessary component for improving the reliability of the folding mechanism. It should be noted that sometimes the boundaries of the positioning protrusion and the positioning clamping groove are relatively blurred. First, taking the first embodiment of the multifunctional child seat (the third type) as an example: the positioning clamping groove in FIG. 21 is arranged on the second folding piece, but from the cross-sectional shape of the second folding piece, it cannot be seen that there is a clamping groove structure. But referring to the positioning clamping groove in FIG. 19, it can be seen that the positioning clamping groove in FIG. 21 is because the shape modification of the second folding piece weakens its features. Secondly, from another angle, when the positioning protrusion and the first folding piece in this embodiment are regarded as a whole, they can be regarded as a three-dimensional clamping groove structure, and when the positioning clamping groove and the second folding piece in this embodiment are regarded as a whole, they can be regarded as a two-dimensional protrusion structure.

[0029] The base piece comprises a front base and a rear base, and the rear base is hinged to the front base through the folding mechanism.

[0030] The limiting frame comprises a front vertical frame and a front longitudinal connecting piece. The front vertical frame is used for limiting the forward folding of the front wall piece.

[0031] The front longitudinal connecting piece is used to connect the front vertical frame and the folding mechanism, and is directly fixed to the folding mechanism or indirectly fixed to the folding mechanism through the front base. The front vertical frame and the front longitudinal connecting piece can be hollow structures or solid structures, and their extension paths can be straight lines or curves. The front longitudinal connecting piece, the front vertical frame, the folding mechanism, and the front base can be four parts integrally formed of the same material, or parts of different materials combined with each other.

[0032] The front wall part is used to form a front wall for the multifunctional child seat (the third type) in the carrying state, and is hinged to the front base. The front wall part is limited in forward turning by the front vertical frame.

[0033] The backrest part is connected to the rear base. The maximum angle of forward turning of the backrest part around the hinge point is limited by the front wall part. After the backrest part is turned forward to be close to the front wall part, the front wall part, the front base, the rear base, and the backrest part form a closed structure. The side wing part is connected to the left and right sides of the backrest part. The side wing part is used to enclose the closed structure formed by the front wall part, the front base, the rear base, and the backrest part from the left and right sides. The degree of enclosure of the side wing part to the closed structure is not limited, and the helmet cannot fall off. The side wing part and the backrest part can be two parts integrally formed of the same material, or two parts of the same material or different materials combined.

[0034] The folding of part of the multifunctional child seat (the third type) forms a closed space, and the folding locking part is used to limit the folding. The multifunctional child seat (the third type) enters the carrying state. At this time, the front wall part limits the forward turning of the backrest part, and the folding locking part and the clamping groove limit the backward turning of the backrest part. The positioning protrusion and the positioning clamping groove limit the maximum angle of unfolding of the folding mechanism, and support the rear base, so as to realize the sitting of the child in the carrying state.

[0035] Further, in the carrying state, the forward turning of the backrest part is not limited, so that the safety belt lacks a fixed point, and the safety of the child in the sitting state needs to be improved. Therefore, the technical solution provided in the embodiments of the present application is that a clamping groove capable of cooperating with the folding locking part is designed, so that the folding locking part and the clamping groove cooperate with each other to unidirectionally limit the folding mechanism to prevent the seat from changing to the carrying state in the carrying state. The backrest part limited in the forward turning in the carrying state can fix the safety belt. According to different shapes of the folding locking part, the number of the clamping grooves is not limited to one or two.

[0036] Optionally, in order to reduce the hindrance of the front base to the legs of the child, the above technical solution is improved by dividing the front base into a front base moving part and a front base fixed part. One end of the front base moving part is hinged to the front wall blocking part, and the other end is hinged to the front base fixed part. The front base fixed part is hinged to the rear base through a folding mechanism. In the object-carrying use state, the front base moving part is supported by the front longitudinal connecting part. In the human-carrying use state, the front base moving part and the front wall blocking part can be flipped backward, the front base moving part is placed above the rear base, and the front wall blocking part is limited by the backrest part to reduce the hindrance to the legs of the child.

[0037] In the object-carrying use state, long-term storage of articles needs to consider the problem of theft prevention; in the human-carrying use state, the folding locking part may have the problem of accidental unlocking. Therefore, according to another aspect of the present application, a folding security device is provided for the two-wheeled vehicle multifunctional child seat of any one of claims 1 to 9, comprising: a rear pull rod, a front-rear connecting rod, a rear longitudinal connecting part, a transverse connecting part, a lock body, and a lock plate.

[0038] The rear longitudinal connecting part is fixed to the folding mechanism for mounting the rear pull rod. The rear longitudinal connecting part can be hollow or solid, and its extension path can be straight or curved.

[0039] The rear pull rod is slidably arranged on the rear longitudinal connecting part and indirectly connected to the folding locking part through the front-rear connecting rod. The front-rear connecting rod connects the folding locking part and the rear pull rod, and the movement of the folding locking part is transmitted to the rear pull rod through the front-rear connecting rod.

[0040] The lock body is fixed to the transverse connecting part for theft prevention. The lock plate is connected to the lock body for directly or indirectly limiting the folding locking part. By limiting the rear pull rod or the front-rear connecting rod with the lock plate, the folding locking part can be indirectly limited.

[0041] The introduction of the transverse connecting part provides a wider fixing point for the lock body. When there is more than one rear longitudinal connecting part,

[0042] The transverse connecting part simultaneously connects multiple rear longitudinal connecting parts, which can reinforce the seat.

[0043] When the folding locking part slides longitudinally, the rear pull rod slides longitudinally together with the front-rear connecting rod; when the folding locking part rotates around the hinge point, the rear pull rod slides together with the front-rear connecting rod; when the folding locking part slides transversely, the rear pull rod slides transversely together with the front-rear connecting rod; when the folding locking part is rotated into the first folding part, the rear connecting rod is sleeved on the folding locking part, at this time the rear pull rod and the front-rear connecting rod do not rotate, and the rear pull rod slides transversely together with the front-rear connecting rod.

[0044] The folding protection device is introduced, which can prevent the theft of the articles on the vehicle in the article carrying state and prevent the folding mechanism from being unlocked accidentally in the passenger carrying state. BRIEF DESCRIPTION OF DRAWINGS

[0045] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0046] Fig. 1 is a structural schematic diagram of a first embodiment of a two-wheeled vehicle multifunctional child seat (first type) in a state switching process.

[0047] Fig. 2 is a structural schematic diagram of the first embodiment of the two-wheeled vehicle multifunctional child seat (first type) in a passenger carrying state.

[0048] Fig. 3 is a structural schematic diagram of the first embodiment of the two-wheeled vehicle multifunctional child seat (first type) in an article carrying state.

[0049] Fig. 4 is a partial sectional view of a second embodiment of the two-wheeled vehicle multifunctional child seat (first type) in an article carrying state.

[0050] Fig. 5 is a schematic diagram of the rearward turning movement of the front wall blocking member of the second embodiment of the two-wheeled vehicle multifunctional child seat (first type) in a passenger carrying state.

[0051] Fig. 6 is a structural schematic diagram of the second embodiment of the two-wheeled vehicle multifunctional child seat (first type) in a passenger carrying state.

[0052] Fig. 7 is a structural schematic diagram of a third embodiment of the two-wheeled vehicle multifunctional child seat (first type) in a state switching process.

[0053] Fig. 8 is a schematic diagram of the rearward turning movement of the front seat base moving member of the third embodiment of the two-wheeled vehicle multifunctional child seat (first type) in a passenger carrying state.

[0054] Fig. 9 is a structural schematic diagram of the third embodiment of the two-wheeled vehicle multifunctional child seat (first type) in an article carrying state.

[0055] Fig. 10 is a structural schematic diagram of the third embodiment of the two-wheeled vehicle multifunctional child seat (first type) in a passenger carrying state.

[0056] Fig. 11 is a structural schematic diagram of a first embodiment of a two-wheeled vehicle multifunctional child seat (second type) in a state switching process.

[0057] Fig. 12 is a structural schematic diagram of the first embodiment of the two-wheeled vehicle multifunctional child seat (second type) in a passenger carrying state.

[0058] Fig. 13 is a schematic view of a first embodiment of a stroller multi-functional child seat (second type) in a load-carrying mode.

[0059] Fig. 14 is a schematic view of a second embodiment of a stroller multi-functional child seat (second type) in a passenger-carrying mode.

[0060] Fig. 15 is a schematic view of a second embodiment of a stroller multi-functional child seat (second type) in a load-carrying mode.

[0061] Fig. 16 is a schematic view of a third embodiment of a stroller multi-functional child seat (second type) in a state switching mode.

[0062] Fig. 17 is a schematic view of a third embodiment of a stroller multi-functional child seat (second type) in a passenger-carrying mode.

[0063] Fig. 18 is a schematic view of a third embodiment of a stroller multi-functional child seat (second type) in a load-carrying mode.

[0064] Fig. 19 is a schematic view of a first embodiment of a stroller multi-functional child seat (third type) in a state switching mode.

[0065] Fig. 20 is a schematic view of a first embodiment of a stroller multi-functional child seat (third type) in a passenger-carrying mode.

[0066] Fig. 21 is a schematic view of a first embodiment of a stroller multi-functional child seat (third type) in a load-carrying mode.

[0067] Fig. 22 is a schematic view of a second embodiment of a stroller multi-functional child seat (third type) in a state switching mode.

[0068] Fig. 23 is a schematic view of a second embodiment of a stroller multi-functional child seat (third type) in a passenger-carrying mode.

[0069] Fig. 24 is a schematic view of a second embodiment of a stroller multi-functional child seat (third type) in a load-carrying mode.

[0070] Fig. 25 is a schematic view of a third embodiment of a stroller multi-functional child seat (third type) in a state switching mode.

[0071] Fig. 26 is a schematic view of a third embodiment of a stroller multi-functional child seat (third type) in a passenger-carrying mode with the front base member flipped backward.

[0072] Fig. 27 is a schematic view of a third embodiment of a stroller multifunctional child seat (third type) of the present application in a load-carrying state.

[0073] Fig. 28 is a schematic view of a third embodiment of a stroller multifunctional child seat (third type) of the present application in a load-carrying state.

[0074] Fig. 29 is a schematic view of a first embodiment of a folding safety device of the present application.

[0075] Fig. 30 is a schematic view of a second embodiment of a folding safety device of the present application.

[0076] Fig. 31 is a schematic view of a third embodiment of a folding safety device of the present application.

[0077] Fig. 32 is a partial exploded view of a third embodiment of a folding safety device of the present application. DETAILED DESCRIPTION

[0078] For the sake of convenience, the terms "front", "rear", "left" and "right" as used hereinafter are defined according to the first perspective of a child seated in the seat, and are not related to the left and right directions of the drawings themselves. For the sake of brevity, a stroller multifunctional child seat provided in the following embodiments can be referred to simply as "seat".

[0079] 1. A first embodiment of a stroller multifunctional child seat (first type)

[0080] 1. A first embodiment of a stroller multifunctional child seat (first type)

[0081] As shown in Fig. 1, the present embodiment provides a stroller multifunctional child seat, which comprises a folding mechanism 1, a base 2, a limiting frame 3, a front barrier 4, a backrest 5 and side wings 6.

[0082] As shown in Fig. 2, the base 2 comprises a front base 21 and a rear base 22, which are connected by the folding mechanism 1. The rear base 22, the backrest 5 and the side wings 6 can be folded forward together by swinging. The side wings 6 are two in number and are connected to the left and right sides of the backrest 5, respectively. The backrest 5 is connected to the rear end of the rear base 22, and the front barrier 4 is connected to the front base 21. The limiting frame 3 comprises a front vertical frame 31 and a front longitudinal connecting member 32, the front vertical frame 31 being fixed to the front longitudinal connecting member 32, and the front longitudinal connecting member 32 being directly fixed to the folding mechanism 1.

[0083] As shown in Fig. 3, the folding mechanism 1 comprises a first folding piece 11, a second folding piece 12 and a folding locking piece 13. The folding locking piece 13 is slidably connected to the second folding piece 12, and the first folding piece 11 is provided with a clamping groove 14 capable of cooperating with the folding locking piece 13. In the object-carrying state, the folding mechanism 1 is unidirectionally limited, so that the seat cannot be converted to the passenger-carrying state. The existence of the front wall blocking piece 4 limits the maximum angle of the forward folding of the backrest piece 5. In the object-carrying state, the folding locking piece 13 is operated to enter the clamping groove 14, so that the object storage can be realized.

[0084] In the embodiment, the seat can be installed in the normal direction. In the passenger-carrying state, the child faces the front of the two-wheeled vehicle, and the front base 21 is connected to the rear luggage carrier of the two-wheeled vehicle. If the seat is installed in the normal direction, the length of the rear luggage carrier of the two-wheeled vehicle is insufficient to support and limit the rear base 22 in the passenger-carrying state. At this time, the seat can be installed in the reverse direction.

[0085] The longitudinal length of the rear base 22 is less than the longitudinal length of the rear luggage carrier of the two-wheeled vehicle, so that the front base 21 is always fixed on the rear luggage carrier of the two-wheeled vehicle when the child seat of the embodiment is installed in the reverse direction with the passenger facing backward, and at this time, the rear base 22 can be supported and limited by the rear luggage carrier of the two-wheeled vehicle.

[0086] In the embodiment, the number of the first folding piece 11, the second folding piece 12 and the limiting frame 3 is two, and the number of the folding locking piece 13 is one, which has a circular cross section. The folding locking piece 13 is slidably arranged on the second folding piece 12, and can slide longitudinally on the second folding piece 12. In the embodiment, the direction of the forward and backward sliding of the folding locking piece 13 is inclined, and the folding locking piece 13 can be embedded in the clamping groove 14 and kept in position under the action of gravity. When the rear base 22 is forward folded, the second folding piece 12 and the folding locking piece 13 are forward turned together with the rear base 22 around the hinge point.

[0087] In the embodiment, the first folding piece 11, the front base 21, the second folding piece 12 and the rear base 22, the front vertical frame 31 and the front longitudinal connecting piece 32, the front base 21 and the front longitudinal connecting piece 32, and the backrest piece 5 and the side wing piece 6 are respectively integrally formed of the same material. The maximum angle of the forward turning of the front wall blocking piece 4 is limited by the front vertical frame 31.

[0088] The seat provided in the embodiment has two states, one is the passenger-carrying state as shown in Fig. 2, and the other is the object-carrying state as shown in Fig. 3. The specific process of the conversion between the two states is as follows.

[0089] In the human carrying state, the folding lock 13 is unlocked, the backrest 5 is pushed to make the second folding part 12, the folding lock 13, the rear base 22, the backrest 5, and the side wing 6 fold forward together by swinging, and when the backrest 5 is folded and close to the front wall 4, the front wall 4, the front base 21, the rear base 22, the backrest 5, and the side wing 6 form a closed structure. After the second folding part 12 and the folding lock 13 are turned around the hinge point, the folding lock 13 slides on the second folding part 12 under the action of gravity and is embedded in the clamping groove 14 of the first folding part 11, so that the folding mechanism 1 is locked, and at this time, the backrest 5, the rear base 22, and the side wing 6 are all limited, and the seat enters the object carrying state.

[0090] In the object carrying state, the folding lock 13 is pulled and the backrest 5 is folded backward until the rear base 22 is supported by the bicycle rear rack, and then the front wall 4 is folded backward to be placed on the front base 21, and the seat enters the human carrying state.

[0091] 2. A multifunctional bicycle child seat (first type) second embodiment

[0092] As shown in Figure 4 , the embodiment provides a multifunctional bicycle child seat, which comprises a folding mechanism 1, a base 2, a limiting frame 3, a front wall 4, a backrest 5, and a side wing 6. FIG. 4 is a partial sectional view, which only shows half of the backrest 5 and the right side wing 6.

[0093] As shown in FIG. 5, the base 2 comprises a front base 21 and a rear base 22, the backrest 5 is connected to the rear end of the rear base 22, the front wall 4 is hinged to the front end of the front base 21, and the side wing 6 is fixed to the left and right sides of the backrest 5. The front base 21 and the rear base 22 are hinged through the folding mechanism 1, and the rear base 22, the backrest 5, and the side wing 6 can be folded forward together by swinging. Figure 6 As shown in

[0094] As shown in Figure 4As shown, the folding mechanism 1 includes a first folding piece 11, a second folding piece 12, and a folding locking piece 13. The folding locking piece 13 is detachably connected to the second folding piece 12. The first folding piece 11 is provided with a clamping groove 14, which can cooperate with the folding locking piece 13 to limit the folding mechanism 1 in the one-way direction in the carrying state, so that the seat cannot be changed to the carrying state.

[0095] The difference between the above-mentioned first embodiment of the two-wheeled multifunctional child seat (first type) and the second embodiment is that the front bottom seat 21 and the front longitudinal connecting piece 32, and the front vertical frame 31 and the front longitudinal connecting piece 32 in the second embodiment are two components combined of different materials respectively; the folding locking piece 13 is a bolt, which is detachably connected to the second folding piece 12; the number of the clamping groove 14 on the single first folding piece 11 is one; and the clamping groove 14 and the folding locking piece 13 can cooperate to limit the folding mechanism 1 in the carrying state, so that the seat cannot be changed to the carrying state.

[0096] 3. A third embodiment of the two-wheeled multifunctional child seat (first type)

[0097] As shown in FIG. 7, the present embodiment provides a two-wheeled multifunctional child seat, which includes a folding mechanism 1, a seat piece 2, a limiting frame 3, a front barrier piece 4, a backrest piece 5, and a side wing piece 6.

[0098] As Figure 8 As shown, the side wing piece 6 is fixed on the left and right sides of the backrest piece 5. The seat piece 2 includes a front seat 21 and a rear seat 22, the front seat 21 includes a front seat moving piece 211 and a front seat fixed piece 212, the backrest piece 5 is connected to the rear end of the rear seat 22, the front barrier piece 4 is hinged to the front end of the front seat moving piece 211, the front seat 21 and the rear seat 22 are hinged through the folding mechanism 1, and the front seat moving piece 211 is hinged to the front seat fixed piece 212. The rear seat 22, the backrest piece 5, and the side wing piece 6 can be folded forward together by swinging. The limiting frame 3 includes a front vertical frame 31 and a front longitudinal connecting piece 32, the front vertical frame 31 is fixed to the front longitudinal connecting piece 32, and the front longitudinal connecting piece 32 is directly fixed to the folding mechanism 1. The longitudinal length of the rear seat 22 is less than the longitudinal length of the rear luggage rack of the two-wheeled vehicle, and the front seat fixed piece 212 is fixed to the rear luggage rack of the two-wheeled vehicle.

[0099] AsFigure 9 As shown, the folding mechanism 1 includes a first folding piece 11, a second folding piece 12, and a folding locking piece 13. The folding locking piece 13 is hinged to the second folding piece 12. The first folding piece 11 is provided with a clamping groove 14, which can cooperate with the folding locking piece 13. In the load-carrying state, the folding mechanism 1 is one-way limited, so that the seat cannot be converted to the load-carrying state. The presence of the front barrier piece 4 limits the maximum angle of the backrest piece 5 when it is folded forward. After the backrest piece 5 is folded forward, the folding locking piece 13 is operated to lock the folding mechanism 1, so that the vehicle-mounted articles can be stored.

[0100] The main difference between the above-mentioned first embodiment of the two-wheeled multifunctional child seat (first type) and the present embodiment is that the folding locking piece 13 of the present embodiment is hinged to the second folding piece 12, and the folding locking piece 13 is swung into the clamping groove 14 on the first folding piece 11 under the action of gravity to achieve the limiting function. The front base 21 of the present embodiment includes a front base moving piece 211 and a rear base moving piece 212. The rear base fixed piece 212 and the first folding piece 11 are two parts made of different materials and are connected to each other. The front vertical bracket 31 and the front longitudinal connecting piece 32 of the present embodiment are integrally formed.

[0101] From the above three embodiments, it can be known that in the load-carrying state and the load-carrying state, the folding locking piece 13 can be designed to be inclined and slidably arranged on the second folding piece 12. The gravity makes the folding locking piece 13 slide and enter the clamping groove 14, and keeps its position to limit the folding mechanism 1. The friction between the folding locking piece 13 and the second folding piece 12 can also be used to keep its position and limit the folding mechanism 1. The folding locking piece 13 can also be hinged to the second folding piece 12. When the center of mass of the folding locking piece 13 is lower than the hinge point, the folding locking piece 13 enters the clamping groove 14 under the action of gravity, which can also keep its position and limit the folding mechanism 1. The folding locking piece 13 can also be designed in the form of a bolt, which is screwed into the clamping groove 14 on the first folding piece 11, and the friction is used to keep the position of the folding locking piece and limit the folding mechanism 1.

[0102] 4. A first embodiment of a two-wheeled multifunctional child seat (second type)

[0103] As shown in FIG. 11, the present embodiment provides a two-wheeled multifunctional child seat, which includes a folding mechanism 1, a base piece 2, a limiting piece 3, a front barrier piece 4, a backrest piece 5, and a side wing piece 6.

[0104] As shown in Fig. 12, the base member 2 comprises a front base 21 and a rear base 22, the backrest member 5 is connected to the rear end of the rear base 22, the side wing member 6 is connected to the left and right sides of the backrest member 5, and the front barrier member 4 is hinged to the front base 21. The front base 21 and the rear base 22 are hinged by the folding mechanism 1, and the rear base 22, the backrest member 4 and the side wing member 5 can be folded forward together by swinging. The limiting frame 3 comprises a front vertical frame 31 and a front longitudinal connecting member 32, the front vertical frame 31 is fixed to the front longitudinal connecting member 32, and the front longitudinal connecting member 32 is directly fixed to the folding mechanism 1.

[0105] As shown in Fig. 13, the folding mechanism 1 comprises 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, and the first folding member 11 is provided with a clamping groove 14. The clamping groove 14 can cooperate with the folding locking member 13 to limit the folding mechanism 1 in one direction in the passenger use state, limit the maximum unfolding angle of the backrest member 5, and enable the rear base 22 and the backrest member 5 to support the child to sit. The clamping groove 14 can also cooperate with the folding locking member 13 to limit the folding mechanism 1 in one direction in the cargo use state, so that the seat cannot be changed to the passenger use state. In the cargo use state, the front barrier member 4 limits the maximum angle of the backrest member 5 to fold forward, and the folding mechanism 1 limits the backrest member 5 to fold backward.

[0106] In this embodiment, the first folding member 11 and the front base member 21, the second folding member 12 and the rear base 22, the backrest member 5 and the side wing member 6, and the front vertical frame 31 and the front longitudinal connecting member 32 are respectively connected by two parts of different materials. In this embodiment, the number of the first folding member 11, the second folding member 12 and the folding locking member 13 is two, and the folding locking member 13 is hinged to the second folding member 12. The maximum angle of the front barrier member 4 to fold forward is limited by the front vertical frame 31.

[0107] The seat provided by the embodiment of the present application has two use states: one is a human-carrying use state, as shown in FIG. 12; and the other is a cargo-carrying use state, as shown in FIG. 13. The specific process of the state conversion is as follows: the folding locking member 13 is pulled to unlock the folding mechanism 1, the backrest member 5 is pushed to make the rear base 22, the second folding member 12, the folding locking member 13, the backrest member 5 and the side wing member 6 fold forward together in a swinging manner, and the front wall blocking member 4, the front base 21, the rear base 22, the backrest member 5 and the side wing member 6 jointly form an enclosed structure. The folding locking member 13 is embedded into the clamping groove 14 to lock the folding mechanism 1, so that the backrest member 5, the rear base 22 and the side wing member 6 cannot be folded backward, and at this time, the seat enters the cargo-carrying use state. The folding locking member 13 is pulled to unlock the folding mechanism 1, the backrest member 5 is flipped backward again, and the folding locking member 13 is embedded into the clamping groove 14, at this time, the rear base 22 is limited by the folding mechanism 1, and finally, the front wall blocking member 4 is flipped backward, and the seat enters the human-carrying use state.

[0108] 5. A multi-functional child seat for a two-wheeled vehicle (second type) second embodiment

[0109] As shown in FIG. 14, the embodiment provides a multi-functional child seat for a two-wheeled vehicle, which comprises a folding mechanism 1, a base member 2, a limiting frame 3, a front wall blocking member 4, a backrest member 5 and a side wing member 6. The base member 2 comprises a front base 21 and a rear base 22, the backrest member 5 is connected to the rear end of the rear base 22, the front wall blocking member 4 is hinged to the front base 21, and the side wing member 6 is connected to the left and right sides of the backrest member 5. The front base 21 and the rear base 22 are hinged through the folding mechanism 1, and the rear base 22, the backrest member 5 and the side wing member 6 can be folded forward together in a swinging manner. The limiting frame 3 comprises a front vertical frame 31 and a front longitudinal connecting member 32, the front vertical frame 31 is fixed to the front longitudinal connecting member 32, and the front longitudinal connecting member 32 is indirectly fixed to the folding mechanism 1 through the front base 21.

[0110] As shown in FIG. 15, the folding mechanism 1 includes a first folding piece 11, a second folding piece 12, and a folding locking piece 13 which is detachably connected to the second folding piece 12. A clamping groove 14 is formed on the first folding piece 11. The clamping groove 14 can cooperate with the folding locking piece 13 to limit the folding mechanism 1 in both directions in the child-riding state, so as to limit the unfolding angle of the rear base 22, and enable the rear base 22 and the backrest 5 to support the child. The clamping groove 14 can also cooperate with the folding locking piece 13 to limit the folding mechanism 1 in one direction in the object-carrying state, so as to prevent the seat from being converted to the child-riding state. In the object-carrying state, the front barrier 4 limits the maximum forward folding angle of the backrest 5, and the folding mechanism 1 limits the rearward folding of the backrest 5.

[0111] The backrest 5 and the side wing 6 are two parts integrally formed of the same material in the embodiment, and the first folding piece 11 and the rear base 22 are two parts integrally formed of the same material. The folding locking piece 13 is detachably connected to the second folding piece 12. In the embodiment, the folding locking piece 13 can cooperate with the clamping groove 14 to limit the folding mechanism 1 in both directions in the child-riding state.

[0112] 6. A multi-functional child seat for a two-wheeled vehicle (second type) third embodiment

[0113] As shown in FIG. 16, the embodiment provides a multi-functional child seat for a two-wheeled vehicle, which includes a folding mechanism 1, a base 2, a limiting frame 3, a front barrier 4, a backrest 5, and a side wing 6.

[0114] As shown in FIGS. 17 and 18, the base 2 includes a front base 21 and a rear base 22. The front base 21 includes a front base moving piece 211 and a front base fixed piece 212. The front base moving piece 211 is hinged to the front base fixed piece 212. The backrest 5 is connected to the rear end of the rear base 22. The front barrier 4 is hinged to the front base moving piece 211. The side wing 6 is connected to the left and right sides of the backrest 5. The front base fixed piece 212 and the rear base 22 are hinged through the folding mechanism 1. The rear base 22,

[0115] The backrest 5 and the side wing 6 can be folded forward together by swinging. The limiting frame 3 includes a front vertical frame 31 and a front longitudinal connecting piece 32. The front vertical frame 31 is fixed to the front longitudinal connecting piece 32. The front longitudinal connecting piece 32 is directly fixed to the folding mechanism 1.

[0116] As shown in FIG. 18, the folding mechanism 1 includes a first folding piece 11, a second folding piece 12, and a folding lock 13, which is slidably arranged on the second folding piece 12. The first folding piece 11 is provided with a clamping groove 14. The clamping groove 14 can cooperate with the folding lock 13 to limit the folding mechanism 1 in both directions in the child-carrying state, limiting the unfolding angle of the rear base 22

[0117] The clamping groove 14 can also cooperate with the folding lock 13 to limit the folding mechanism 1 in one direction in the object-carrying state, so that the seat cannot be converted to the child-carrying state. In the object-carrying state, the front barrier 4 limits the maximum forward folding angle of the backrest 5, and the folding mechanism 1 limits the rearward folding of the backrest 5.

[0118] The folding lock 13 of the present embodiment is slidably arranged on the second folding piece 12. The front vertical frame 31 and the front longitudinal connecting piece 32 of the present embodiment are two parts integrally formed of the same material. The front base 21 of the present embodiment includes a front base moving piece 211 and a front base fixed piece 212. In the child-carrying state, the front barrier 4 and the front base moving piece 211 can be rearwardly flipped to reduce the hindrance to the legs of the young child.

[0119] The above-mentioned two-wheeled child seat (second type) does not rely on the rear luggage rack of the two-wheeled vehicle, eliminating the influence of environmental features and relieving the size limitation of the rear base.

[0120] 7. A two-wheeled child seat (third type) first embodiment

[0121] As shown in FIG. 19, the present embodiment provides a two-wheeled child seat, which includes a folding mechanism 1, a base 2, a limiting frame 3, a front barrier 4, a backrest 5, and a side wing 6.

[0122] As shown in FIG. 20, the base member 2 comprises a front base 21 and a rear base 22, the rear base 22 is hinged to the front base 21 through the folding mechanism 1. The front wall member 4 is hinged to the front base 21, and the backrest member 5 is connected to the rear end of the rear base 22. The front wall member 4 limits the maximum angle of the forward folding of the backrest member 5 around the hinge point, and when the backrest member 5 is folded forward to be close to the front wall member 4, the front wall member 4, the front base 21, the rear base 22, and the backrest member 5 form a closed structure. The side wing member 6 is connected to the left and right sides of the backrest member 5, and the side wing member 6 is used to block the closed structure formed by the front wall member 4, the front base 21, the rear base 22, and the backrest member 5 from the side. The limiting frame 3 comprises a front vertical frame 31 and a front longitudinal connecting member 32, the front vertical frame 31 is fixed to the front longitudinal connecting member 32, and the front longitudinal connecting member 32 is directly fixed to the folding mechanism 1.

[0123] As shown in FIG. 21, the folding mechanism 1 comprises a first folding member 11, a second folding member 12, and a folding locking member 13. The first folding member 11 is connected to the front base 21, and the second folding member 12 is connected to the rear base 22. The folding locking member 13 is slidably arranged on the second folding member 12, a clamping groove 14 is formed on the first folding member 11, and the folding locking member 13 can be matched with the clamping groove 14. In the load-carrying state, the folding mechanism 1 is unidirectionally limited, so that the seat cannot be converted to the passenger-carrying state. The first folding member 11 is provided with a positioning protrusion 15, and the second folding member 12 is provided with a positioning clamping groove 16. The positioning protrusion 15 and the positioning clamping groove 16 limit the maximum unfolding angle of the folding mechanism 1 in the passenger-carrying state. It should be noted that the positioning protrusion 15 and the positioning clamping groove 16 limit the maximum unfolding angle of the rear base 22 in the passenger-carrying state, so as to ensure that the seat has the passenger-carrying property no matter how it is installed on the two-wheeled vehicle, and the influence of environmental characteristics is eliminated.

[0124] The folding seat forms a closed space by part of the structure and limits the folding mechanism 1 by the folding locking member 13, so that the seat enters the load-carrying state. In the load-carrying state, the front wall member 4 limits the forward folding of the backrest member 5, and the folding mechanism 1 limits the rearward folding of the backrest member 5, so as to realize the storage of articles. In the passenger-carrying state, the positioning protrusion 15 and the positioning clamping groove 16 limit the folding mechanism 1, and then limit the maximum angle of the rearward folding of the rear base 22, so as to realize the seating of children.

[0125] The front vertical frame 31 and the front longitudinal connecting piece 32 of the present embodiment are two parts of different materials connected with each other; the first folding piece 11 and the front longitudinal connecting piece 32, and the second folding piece 12 and the rear base 22 of the present embodiment are respectively two parts of the same material integrally formed; the folding locking piece 13 of the present embodiment is obliquely slidably arranged on the second folding piece 12, so that the folding locking piece 13 can always be embedded into the clamping groove 14.

[0126] 8. A second embodiment of a two-wheeled vehicle multifunctional child seat (third type)

[0127] As shown in FIG. 22, the present embodiment provides a two-wheeled vehicle multifunctional child seat, which comprises a folding mechanism 1, a base piece 2, a limiting frame 3, a front wall blocking piece 4, a backrest piece 5, and a side wing piece 6.

[0128] As shown in FIG. 23, the base piece 2 comprises a front base 21 and a rear base 22, the front wall blocking piece 4 is hingedly connected to the front end of the front base 21, the backrest piece 5 is connected to the rear end of the rear base 22, and the side wing piece 6 is fixed to the left and right sides of the backrest piece 5. In the manned use state, the front wall blocking piece 4 can be rearwardly flipped and placed on the front base 21. The front base 21 and the rear base 22 are hingedly connected through the folding mechanism 1, and the rear base 22, the backrest piece 5, and the side wing piece 6 can be turned forward together by swinging.

[0129] The limiting frame 3 comprises a front vertical frame 31 and a front longitudinal connecting piece 32, the front vertical frame 31 is fixed to the front longitudinal connecting piece 32, and the front longitudinal connecting piece 32 is indirectly fixed to the folding mechanism 1 through the front base 21.

[0130] As shown in FIG. 24, the folding mechanism 1 includes a first folding piece 11, a second folding piece 12, and a folding locking piece 13. The folding locking piece 13 is hinged to the second folding piece 12. The first folding piece 11 is provided with a clamping groove 14, which can cooperate with the folding locking piece 13 to one-way limit the folding mechanism 1 in the object-carrying state, so that the seat cannot be converted to the human-carrying state, and can also one-way limit the folding mechanism 1 in the human-carrying state, so that the seat cannot be converted to the object-carrying state. The second folding piece 12 is provided with a positioning protrusion 15, and the first folding piece 11 is provided with a positioning clamping groove 16, which limits the maximum unfolding angle of the folding mechanism 1 in the human-carrying state. The presence of the front wall blocking piece 4 limits the maximum angle of forward folding of the backrest piece 5. After pushing the backrest piece 5 to fold forward, operating the folding locking piece 13 to limit the folding mechanism 1 can achieve the storage of the objects on the vehicle.

[0131] Different from the first embodiment of the above-mentioned two-wheeled vehicle multifunctional child seat (third type): the folding locking piece 13 of the present embodiment is hinged to the second folding piece 12; the positioning protrusion 15 of the present embodiment is arranged on the second folding piece 12, and the positioning clamping groove 16 is arranged on the first folding piece 11; the front base 21 of the present embodiment includes a front base moving piece 211 and a front base fixed piece 212, and the front wall blocking piece 4 and the front base moving piece 211 can be folded backward in the human-carrying state.

[0132] 9. A third embodiment of a two-wheeled vehicle multifunctional child seat (third type)

[0133] As shown in FIG. 25, the present embodiment provides a two-wheeled vehicle multifunctional child seat, which includes a folding mechanism 1, a base piece 2, a limiting frame 3, a front wall blocking piece 4, a backrest piece 5, and a side wing piece 6.

[0134] As shown in Fig. 26, the base member 2 includes a front base 21 and a rear base 22, the front base 21 includes a front base moving member 211 and a front base fixed member 212, the front base moving member 211 is hinged to the front base fixed member 212, and the front base fixed member 212 and the rear base 22 are hinged by the folding mechanism 1. The front wall member 4 is hinged to the front end of the front base moving member 211, the backrest member 5 is connected to the rear end of the rear base 22, and the side wing member 6 is fixed to the left and right sides of the backrest member 5. The front base 21 and the rear base 22 are hinged by the folding mechanism 1, and the rear base 22, the backrest member 5, and the side wing member 6 can be folded forward together by swinging. The limiting frame 3 includes a front vertical frame 31 and a front longitudinal connecting member 32, the front vertical frame 31 is fixed to the front longitudinal connecting member 32, and the front longitudinal connecting member 32 is directly fixed to the folding mechanism 1.

[0135] As shown in Fig. 27, 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 clamping groove 14, which can cooperate with the folding locking member 13 to one-way limit the folding mechanism 1 in the object-carrying use state, so that the seat cannot be changed to the human-carrying use state. The second folding member 12 is provided with a positioning protrusion 15, and the first folding member 11 is provided with a positioning clamping groove 16, which limits the maximum unfolding angle of the folding mechanism 1 in the human-carrying use state. The existence of the front wall member 4 limits the maximum angle of the forward folding of the backrest member 5. After the backrest member 5 is pushed to fold forward, the folding mechanism 1 can be limited by operating the folding locking member 13 to achieve the storage of the articles on the vehicle.

[0136] The folding locking member 13 of the embodiment is a bolt, which is detachably connected to the second folding member 12. The positioning protrusion 15 of the embodiment is connected to the second folding member 12, and the positioning clamping groove 16 is connected to the first folding member 11. As shown in Fig. 28, the front wall member 4 and the front base moving member 211 can be folded backward. The folded front base moving member 211 is above the rear base 22, and the folded front wall member 4 is supported by the backrest member 5.

[0137] 10. First embodiment of folding safety device

[0138] The first embodiment of the folding safety device comprises a rear pull rod 17, a front-rear connecting rod 18, a longitudinal connecting member 19, a transverse connecting member 20, a lock body 91, a lock plate 92, and the multifunctional child seat of the two-wheeled vehicle of claim 9 provided with the folding safety device, as shown in FIG. 29.

[0139] The longitudinal connecting member 19 is fixed to the second folding member 12, and the rear pull rod 17 is slidably arranged on the longitudinal connecting member 19 and indirectly connected to the folding locking member 13 through the front-rear connecting rod 18. The movement of the folding locking member 13 is transmitted to the rear pull rod 17 through the front-rear connecting rod 18, and the rear pull rod 17 slides longitudinally under the driving of the front-rear connecting rod 18.

[0140] The transverse connecting member 20 is connected to the longitudinal connecting member 19 for mounting the lock body 91. In this embodiment, the transverse connecting member 20 is connected to two longitudinal connecting members 19, which can reinforce the seat.

[0141] The lock body 91 is fixed to the transverse connecting member 20, and the lock plate 92 is connected to the lock body 91. The lock plate 92 is displaced by operating the lock body 91, and the folding locking member 13 is limited by limiting the rear pull rod 17.

[0142] The introduction of the folding member safety device solves the problem of how to prevent theft of stored articles in the load use state and how to improve the reliability of the folding mechanism in the passenger use state.

[0143] 11. The second embodiment of the folding safety device

[0144] The second embodiment of the folding safety device comprises a rear pull rod 17, a front-rear connecting rod 18, a longitudinal connecting member 19, a transverse connecting member 20, a lock body 91, a lock plate 92, and the multifunctional child seat of the two-wheeled vehicle of claim 8 provided with the folding safety device, as shown in FIG. 30.

[0145] The longitudinal connecting member 19 is fixed to the second folding member 12, and the rear pull rod 17 is slidably arranged on the longitudinal connecting member 19 and indirectly connected to the folding locking member 13 through the front-rear connecting rod 18. The movement of the folding locking member 13 is transmitted to the rear pull rod 17 through the front-rear connecting rod 18, and the rear pull rod 17 slides longitudinally under the driving of the front-rear connecting rod 18.

[0146] The transverse connecting member 20 is connected to the longitudinal connecting member 19 for mounting the lock body 91. In this embodiment, the transverse connecting member 20 is connected to two longitudinal connecting members 19, which can reinforce the seat.

[0147] The lock body 91 is fixed to the transverse connecting member 20, and the lock plate 92 is connected to the lock body 91. The operation of the lock body 91 drives the displacement of the lock plate 92, and the rear pull rod 17 can limit the folding locking member 13 together.

[0148] As shown in FIG. 30, unlike the first embodiment of the folding security device, the seat of the present embodiment is the two-wheeled vehicle multifunctional child seat provided with the folding security device according to claim 8; the folding locking member 13 of the present embodiment is hinged to the second folding member 12; the slot 14 of the present embodiment can be matched with the folding locking member 13 in both the passenger use state and the cargo use state, and the front and rear connecting rods 18 are hinged to the folding locking member 13 at one end and fixed to the rear pull rod 17 at the other end.

[0149] 12. The third embodiment of the folding security device

[0150] As shown in FIG. 31 and FIG. 32, unlike the first embodiment of the folding security device described above, the seat of the present embodiment is the two-wheeled vehicle multifunctional child seat provided with the folding security device according to claim 8; the second folding member 12 of the present embodiment is connected to the front base 21, and the folding locking member 13 is a bolt and is detachably connected to the second folding member 12; the first folding member 11 is connected to the rear base, and the slot 14 is formed on the first folding member 11, and the shape of the slot 14 is two round holes, as shown in FIG. 32; the rear pull rod 17 of the present embodiment is transversely slid on the longitudinal connecting member 19, and the front and rear connecting rods 18 are sleeved on the folding locking member 13 at one end and fixed to the rear pull rod 17 at the other end. When the depth of the folding locking member 13 is adjusted by rotating it, the front and rear connecting rods 18 sleeved on the folding locking member 13 move transversely together with the rear pull rod 17; the number of the longitudinal connecting member 19 of the present embodiment is one, the lock plate 92 is fixed to the lock body 91, and the lock body 91 is fixed to the longitudinal connecting member 19 through the transverse connecting member 20. The operation of the lock body 91 drives the rotation of the lock plate 92 to limit the transverse movement of the front and rear connecting rods 18, thereby limiting the folding locking member 13. The folding locking member 13 that is limited cannot be rotated out of the slot 14, which improves the reliability of the folding mechanism 1 in the passenger use state and realizes the anti-theft storage of the articles with the vehicle in the cargo use state.

[0151] The application provides a two-wheeled vehicle multifunctional child seat with two use states, which can meet the two requirements of installing a rear child seat to carry people and installing a trunk to carry things. In order to achieve the above-mentioned purpose, the folding mechanism 1 is an indispensable specific technical feature. The folding mechanism 1 has a limiting function, so that the two-wheeled vehicle multifunctional child seat can be kept in the people-carrying use state or the thing-carrying use state. The four independent claims in the application all contain the specific technical feature of the folding mechanism 1. The first three independent claims sort out the folding mechanism 1 with different structures, and give three two-wheeled vehicle multifunctional child seats. The fourth independent claim expands the folding mechanism 1, on the one hand, makes the unlocking operation of the folding mechanism 1 more convenient, on the other hand, makes the limiting of the folding mechanism 1 more reliable, and at the same time solves the problem of preventing the storage of articles in the thing-carrying use state of the seat.

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 unidirectionally limit the folding mechanism (1) in the cargo-carrying state, so that the two-wheeled vehicle multi-functional child seat is restricted to the cargo-carrying state and cannot be transformed into 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 longitudinal length of the rear base (22) is less than the longitudinal length of the rear rack of the two-wheeled vehicle. The front base (21) is connected to the rear rack of the two-wheeled vehicle. The limiting frame (3) is directly or indirectly fixed to the folding mechanism (1). The limiting frame (3) includes a front vertical frame (31) and a front longitudinal connector (32). The front longitudinal connector (32) is directly or indirectly fixed to the folding mechanism (1), and the front vertical frame (31) is fixed to the front longitudinal connector (32). A front enclosure (4) is used to form a enclosure for the front when the cargo is in use. The front enclosure (4) is hinged to the front base (21). The forward flipping of the front enclosure (4) is limited by the front vertical frame (31). The backrest (5) is connected to the rear base (22). The front baffle (4) is located between the front vertical frame (31) and the backrest (5). When the backrest is in use, the front vertical frame (31) limits the front baffle (4), so that the maximum angle of the backrest (5) flipping forward around the hinge point is limited by the front baffle (4). When the backrest (5) folds forward and is limited by the folding mechanism (1) and the front baffle (4), the front baffle (4), the front base (21), the rear base (22), and the backrest (5) together form an enclosing structure. Side wings (6) are attached to the left and right sides of the backrest (5). The side wings (6) are used to enclose the enclosure structure formed by the front baffle (4), the front base (21), the rear base (22), and the backrest (5) from the side.

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

3. A multi-functional child seat for a two-wheeled vehicle as described in claim 1, characterized in that: The front base (21) includes a front base moving part (211) and a front base fixing part (212). One end of the front base moving part (211) is hinged to the front enclosure (4), and the other end is hinged to the front base fixing part (212). The front base fixing part (212) is hinged to the rear base (22) through the folding mechanism (1). In the cargo-carrying state, the front base moving part (211) is supported by the front longitudinal connecting part (32).

4. 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 folding locking part (13) and a second folding part (12). 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 unidirectionally limit the folding mechanism (1) in the passenger-carrying state, limiting the maximum unfolding angle of the folding mechanism (1). The slot (14) can also cooperate with the folding locking part (13) to unidirectionally limit the folding mechanism (1) in the cargo-carrying state, so that the two-wheeled vehicle multi-functional child seat cannot be converted to the passenger-carrying state. The base component (2) includes a front base (21) and a rear base (22), wherein the rear base (22) is hinged to the front base (21) via the folding mechanism (1); The limiting frame (3) is directly or indirectly fixed to the folding mechanism (1). The limiting frame (3) includes a front vertical frame (31) and a front longitudinal connector (32). The front longitudinal connector (32) is directly or indirectly fixed to the folding mechanism (1), and the front vertical frame (31) is fixed to the front longitudinal connector (32). A front enclosure (4) is used to form a enclosure for the front when the cargo is in use. The front enclosure (4) is hinged to the front base (21). The forward flipping of the front enclosure (4) is limited by the front vertical frame (31). The backrest (5) is connected to the rear base (22). The front baffle (4) is located between the front vertical frame (31) and the backrest (5). When the backrest is in use, the front vertical frame (31) limits the front baffle (4), so that the maximum angle of the backrest (5) flipping forward around the hinge point is limited by the front baffle (4). When the backrest (5) folds forward and is limited by the folding mechanism (1) and the front baffle (4), the front baffle (4), the front base (21), the rear base (22), and the backrest (5) together form an enclosing structure. Side wings (6) are attached to the left and right sides of the backrest (5). The side wings (6) are used to enclose the enclosure structure formed by the front baffle (4), the front base (21), the rear base (22), and the backrest (5) from the side.

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-carrying state, so that the two-wheeled vehicle multi-functional child seat cannot be changed from the passenger-carrying state to the cargo-carrying state.

6. A multi-functional child seat for a two-wheeled vehicle as described in claim 4, characterized in that: The front base (21) includes a front base moving part (211) and a front base fixing part (212). One end of the front base moving part (211) is hinged to the front enclosure (4), and the other end is hinged to the front base fixing part (212). The front base fixing part (212) is hinged to the rear base (22) through the folding mechanism (1). In the cargo-carrying state, the front base moving part (211) is supported by the front longitudinal connecting part (32).

7. A multi-functional child seat for a two-wheeled vehicle, characterized in that, include: A folding mechanism (1) is provided, comprising a first folding component (11), a folding locking component (13), and a second folding component (12). The folding locking component (13) is slidably disposed on the second folding component (12), or detachably connected to the second folding component (12), or hinged to the second folding component (12). The first folding component (11) is provided with a slot (14), which can cooperate with the folding locking component to unidirectionally limit the folding mechanism (1) in the cargo-carrying state, preventing the two-wheeled vehicle multi-functional child seat from being converted to a passenger-carrying state. One of the first folding component (11) and the second folding component (12) is provided with a positioning protrusion (15), and the other of the first folding component (11) and the second folding component (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 manned use state; The base component (2) includes a front base (21) and a rear base (22), wherein the rear base (22) is hinged to the front base (21) via the folding mechanism (1); The limiting frame (3) is directly or indirectly fixed to the folding mechanism (1). The limiting frame (3) includes a front vertical frame (31) and a front longitudinal connector (32). The front longitudinal connector (32) is directly or indirectly fixed to the folding mechanism (1), and the front vertical frame (31) is fixed to the front longitudinal connector (32). A front enclosure (4) is used to form a enclosure for the front when the cargo is in use. The front enclosure (4) is hinged to the front base (21). The forward flipping of the front enclosure (4) is limited by the front vertical frame (31). The backrest (5) is connected to the rear base (22). The front baffle (4) is located between the front vertical frame (31) and the backrest (5). When the backrest is in use, the front vertical frame (31) limits the front baffle (4), so that the maximum angle of the backrest (5) flipping forward around the hinge point is limited by the front baffle (4). When the backrest (5) folds forward and is limited by the folding mechanism (1) and the front baffle (4), the front baffle (4), the front base (21), the rear base (22), and the backrest (5) together form an enclosing structure. Side wings (6) are attached to the left and right sides of the backrest (5). The side wings (6) are used to enclose the enclosure structure formed by the front baffle (4), the front base (21), the rear base (22), and the backrest (5) from the side.

8. A multi-functional child seat for a two-wheeled vehicle as described in claim 7, characterized in that: The slot (14) can 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.

9. A multi-functional child seat for a two-wheeled vehicle as described in claim 7, characterized in that: The front base (21) includes a front base moving part (211) and a front base fixing part (212). One end of the front base moving part (211) is hinged to the front enclosure (4), and the other end is hinged to the front base fixing part (212). The front base fixing part (212) is hinged to the rear base (22) through the folding mechanism (1). In the cargo-carrying state, the front base moving part (211) is supported by the front longitudinal connecting part (32).

10. A folding safety device for a multi-functional child seat for a two-wheeled vehicle, used in 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; The front and rear connecting rods (18) are rigid components used to connect the folding locking component (13) and the rear pull rod (17); The rear longitudinal connector (19) is fixed to the folding mechanism (1), and the rear pull rod (17) is slidably mounted on the rear 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 rear longitudinal connector (19) and is used to fix the lock body (91).

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