Multi-functional child seat of two-wheeled vehicle and folding safety device thereof

Abstract

A multi-functional child seat of a two-wheeled vehicle, comprising folding mechanisms (1), a base component (2) that comprises a front base (21) and a rear base (22), limiting frames (3), a front guard plate (4), a backrest plate (5), and side wing plates (6), wherein the backrest plate and the side wing plates of the multi-functional child seat of the two-wheeled vehicle can be folded forwards together along with the rear base, and form an enclosed space together with the front base and the front guard plate. The front base and the rear base are hingedly connected by means of the folding mechanisms. Once the enclosed space has been formed, folding locking components enter slots (14) and limit the folding mechanisms, so that an item carried on the vehicle can be stored. The multi-functional child seat of the two-wheeled vehicle solves the problem, in two-wheeled vehicles such as bicycles and electric bicycles, of inability to install both a rear child seat for carrying people and a rear storage box for carrying an item. Also disclosed is a folding safety device installed on the multi-functional child seat of the two-wheeled vehicle, wherein the folding safety device is used for locking the positions of the folding locking components. After the positions of the folding locking components are locked, the reliability of the folding mechanisms is improved, and anti-theft storage of the item carried on the vehicle is achieved.

Description

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

[0001] The present application claims priority to the Chinese patent application No. 202411685966.3, filed on November 24, 2024, entitled "Multifunctional child seat for two-wheeled vehicle and folding safety device thereof", and the Chinese patent application No. 2024108218272, filed on June 24, 2024, entitled "Multifunctional child seat for two-wheeled vehicle and folding safety device thereof", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of child seats, and in particular to a multifunctional child seat for two-wheeled vehicle and a folding safety device thereof. 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 a fixed seat on the back seat when a child under the age of six rides a bicycle or an electric bicycle, and a safety helmet should be worn when riding an electric bicycle or a bicycle. 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 simultaneously install 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 multifunctional child seat for two-wheeled vehicle and a folding safety device thereof. By folding part of the structure of the multifunctional child seat for two-wheeled vehicle to form an enclosed space and using the folding safety device to lock the folding locking member, the multifunctional child seat for two-wheeled vehicle has a carrying function, achieving the effect of one thing serving two purposes.

[0005] According to an aspect of the present application, a first multifunctional child seat for two-wheeled vehicle is provided, comprising: a folding mechanism, a base member, a limiting rack, a front wall member, a backrest member, and a side wing member.

[0006] 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 hingedly connected to the second folding member, or detachably 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 the object-carrying state, so that the multifunctional child seat of the two-wheeled vehicle cannot be converted to the person-carrying state. It should be noted that the folding locking member is designed to be obliquely arranged on the second folding member, so that the folding mechanism can be self-locked. 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 achieve self-locking of the folding mechanism. The folding locking member with threads can be detachably connected to the second folding mechanism, and the folding mechanism can also be self-locked. Another aspect of the present application also provides a folding safety device for the multifunctional child seat of the two-wheeled vehicle, which can limit the folding locking member. The elastic element is not a necessary component for improving the reliability of the folding mechanism.

[0007] 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. The longitudinal length of the rear base is less than that of the rear carrier or the rear object-carrying platform of the two-wheeled vehicle, and the front base is connected to the rear carrier of the two-wheeled vehicle. When the rear carrier of the two-wheeled vehicle is insufficient to support and limit the rear base in the person-carrying state, the front base can be installed reversely, so that the child sitting on the seat faces the tail of the vehicle. The longitudinal length of the rear base is less than that of the rear carrier of the two-wheeled vehicle, which ensures that the front base has a position to be fixed to the rear carrier of the two-wheeled vehicle when the multifunctional child seat of the first two-wheeled vehicle is installed reversely. After being installed reversely, the rear base can be supported and limited by the rear carrier of the two-wheeled vehicle. The length of the child seat of different forms is specified in the "Safety Requirements and Test Methods for Imported and Exported Bicycle Child Seats" (GB / T 23160-2008), wherein the length of the A15 rear seat is between 160 mm and 220 mm, and the length of the A22 rear seat is between 170 mm and 230 mm. The length of the seat is less than that of the rear carrier, and thus the maximum length of the rear base is between 160 mm and 230 mm. The "Safety Requirements for Bicycle Child Seats" is still under review, and the range of the maximum length of the rear base may change after the document is issued.

[0008] The limiting frame comprises a front vertical frame and a front longitudinal connecting member. The front vertical frame is used to limit the forward turning of the front surrounding blocking member and is fixed to the front longitudinal connecting member. The front longitudinal connecting member 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 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.

[0009] The front wall part is used to form a front wall of the first multi-functional child seat for two-wheeled vehicle in the carrying state, and the front wall part is hinged to the front base, and the front turning of the front wall part is limited by the front vertical frame.

[0010] The backrest part is connected to the rear base, and 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 together form an enclosed structure. When the application is used outdoors, it may face rainy and snowy weather, and the backrest part made in an integrated waterproof style is conducive to long-term storage of objects, but many people are used to shielding the parked vehicle with rain gear, so the backrest part made in an integrated waterproof style is not necessary, and the hole of the backrest part can not drop the helmet.

[0011] 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 enclosed 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 enclosed structure is not limited, and the helmet can not be dropped. The side wing part and the backrest part can be two parts of the same material integrally formed, or two parts of the same material or different materials combined. When used outdoors, it may face rainy and snowy weather, and the side wing part made in an integrated waterproof style is conducive to long-term storage of objects in the carrying state, but many people are used to shielding the parked vehicle with rain gear, so the side wing part made in an integrated waterproof style is not necessary.

[0012] The folded first multi-functional child seat for two-wheeled vehicle forms an enclosed space, and the folding locking part limits the folding mechanism, so that the first multi-functional child seat for two-wheeled vehicle 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 rear turning of the backrest part, so that the reliable storage of objects is realized. 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 then the front wall part is placed on the front base, so that the first multi-functional child seat for two-wheeled vehicle enters the carrying state.

[0013] Further, in order to solve the problem that the forward turning of the backrest part is not limited in the carrying 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, and the folding mechanism is limited in the carrying state in one direction, so that the forward turning of the backrest part is limited, and the first multi-functional child seat for two-wheeled vehicle cannot be changed from the carrying state to the carrying state. The backrest part limited by the forward turning in the carrying 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.

[0014] 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 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.

[0015] 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 second type of two-wheeled vehicle multifunctional child seat 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.

[0016] The folding mechanism comprises a first folding part, a folding locking part and a second folding part. The folding locking part is slidably arranged on the second folding part, or detachably connected to the second folding part, or hinged to the second folding part. A clamping groove is provided on the first folding part, which can cooperate with the folding locking part to one-way limit the folding mechanism in the human-carrying use state, limiting the unfolding angle of the folding mechanism; and one-way limit the folding mechanism in the object-carrying use state, so that the second type of two-wheeled vehicle multifunctional child seat cannot be converted to the human-carrying use state. The folding locking part is designed to be inclined and slidably arranged on the second folding part, which can realize self-locking of the folding mechanism; the folding locking part is designed to be hinged to the second folding part, which can realize self-locking of the folding mechanism by using the center of gravity of the folding locking part; the folding locking part with threads can be detachably connected to the second folding mechanism, which can also realize self-locking of the folding mechanism. Another aspect of the present application also provides a folding insurance device for a two-wheeled vehicle multifunctional child seat, which can limit the folding locking part, and the elastic element is not a necessary component to improve the reliability of the folding mechanism. It should be noted that in the human-carrying use state, the folding mechanism limits and supports the rear base, thereby ensuring that the second type of two-wheeled vehicle multifunctional child seat always has a seat regardless of how it is installed on the two-wheeled vehicle, and eliminating the limitation of the rear shelf of the two-wheeled vehicle on the length of the rear base.

[0017] The base part comprises a front base and a rear base, and the rear base is hinged to the front base through the folding mechanism.

[0018] The limiting frame comprises a front vertical frame and a front longitudinal connecting piece. The front vertical frame is used to limit the forward turning of the front barrier and is fixed to the front longitudinal connecting piece. 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 structures 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 four parts integrally formed of the same material or parts of different materials combined with each other.

[0019] The front barrier is used to form a barrier for the front of the first two-wheeled multifunctional child seat in the object-carrying state. The front barrier is hinged to the front base, and the forward turning of the front barrier is limited by the front vertical frame.

[0020] The backrest is connected to the rear base. The maximum angle of the forward turning of the backrest around the hinge point is limited by the front barrier. After the backrest is folded forward to be close to the front barrier, the front barrier, the front base, the rear base and the backrest form a closed structure. The backrest is made in an integrated waterproof style to facilitate long-term storage of objects when used outdoors. However, many people are used to shielding the parked vehicles with rain gear, so it is not necessary to make the backrest in an integrated waterproof style. The holes of the backrest can not drop the helmet.

[0021] The side wing is connected to the left and right sides of the backrest. The side wing is used to enclose the closed structure formed by the front barrier, the front base, the rear base and the backrest from the left and right sides. The side wing does not need to enclose the closed structure to the extent that the helmet does not fall. The side wing and the backrest can be two parts integrally formed of the same material or two parts combined of the same material or different materials. The side wing is made in an integrated waterproof style to facilitate long-term storage of objects in the object-carrying state when used outdoors. However, many people are used to shielding the parked vehicles with rain gear, so it is not necessary to make the side wing in an integrated waterproof style.

[0022] Folding the second two-wheeled multifunctional child seat forms a closed space and limits the folding mechanism by using the folding locking piece, so that the second two-wheeled multifunctional child seat has an object-carrying function. In the object-carrying state, the front barrier limits the forward turning of the backrest, and the folding locking piece cooperates with the clamping groove to limit the backward turning of the backrest, thereby realizing the storage of objects. In the passenger-carrying state, the folding locking piece cooperates with the clamping groove to limit the backward turning of the backrest, thereby realizing the seating of children.

[0023] Further, in the manned use state, the backrest member is not limited, so that the safety belt lacks a fixed point, and the safety of children riding needs to be improved. Therefore, the technical solution provided by the embodiments of the present application is to design a clamping groove capable of cooperating with the folding locking member, so that the folding locking member and the clamping groove cooperate with each other to bidirectionally limit the folding mechanism in the manned use state. The backrest member bidirectionally limited in the manned state can fix the safety belt. According to the different shapes of the folding locking member, the number of clamping grooves is not limited to one or two.

[0024] 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 member and a front base fixed member. One end of the front base moving member is hinged to the front wall blocking member, and the other end is hinged to the front base fixed member. The front base fixed member is hinged to the rear base through the folding mechanism. In the load use state, the front base moving member is supported by the front longitudinal connecting member. In the manned use state, the front base moving member and the front wall blocking member can be flipped backward, the front base moving member is placed above the rear base, and the front wall blocking member is limited by the backrest member to reduce the hindrance to the legs of the young child.

[0025] According to one aspect of the present application, a third multifunctional child seat for a two-wheeled vehicle is provided, comprising: a folding mechanism, a base member, a limiting frame, a front wall blocking member, a backrest member, and a side wing member.

[0026] 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 hingedly connected 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 third type of two-wheeled vehicle multifunctional child seat cannot be converted to the person-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 person-carrying state. In the person-carrying state, the positioning protrusion and the positioning clamping groove limit the unfolding angle of the backrest piece and the rear base, thereby ensuring that the seat always has a seatability regardless of how the seat is installed on the two-wheeled vehicle, and eliminating the influence of environmental features. The folding locking piece is designed to be obliquely slidably arranged on the second folding piece, so as to realize self-locking of the folding mechanism; the folding locking piece is designed to be hingedly connected to the second folding piece, and the center of gravity of the folding locking piece is utilized to realize self-locking of the folding mechanism; the folding locking piece with threads is designed to be detachably connected to the second folding mechanism, so as to also realize self-locking of the folding mechanism. Another aspect of the present application also provides a folding insurance device for a two-wheeled vehicle multifunctional child seat, 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 third type of two-wheeled vehicle multifunctional child seat 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 alone, it cannot be seen that there is a clamping groove structure. However, 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 of view, the positioning protrusion and the first folding piece in this embodiment can be regarded as a three-dimensional clamping groove structure when they are regarded as a whole, and the positioning clamping groove and the second folding piece in this embodiment can be regarded as a two-dimensional protrusion structure when they are regarded as a whole.

[0027] The base piece comprises a front base and a rear base, and the rear base is hingedly connected to the front base through the folding mechanism.

[0028] The limiting frame comprises a front vertical frame and a front longitudinal connecting piece. The front vertical frame is used for limiting the frontward overturning of the front wall piece and is fixed to the front longitudinal connecting piece. The front longitudinal connecting piece is used for connecting 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.

[0029] The front wall is used to form a front wall for the first multi-functional child seat in the carrying state, and the front wall is hinged to the front base, and the front turning of the front wall is limited by the front vertical frame.

[0030] The backrest is connected to the rear base. The maximum angle of the front turning of the backrest around the hinge point is limited by the front wall, and the front wall, the front base, the rear base and the backrest form a closed structure after the backrest is turned forward and close to the front wall. The side wings are connected to the left and right sides of the backrest. The side wings are used to enclose the closed structure formed by the front wall, the front base, the rear base and the backrest from the left and right sides. The degree of enclosure of the side wings to the closed structure is not limited, and the helmet cannot fall off. The side wings and the backrest can be two parts of the same material integrally formed, or two parts of the same material or different materials combined.

[0031] The third multi-functional child seat is in the carrying state after the part of the structure is folded to form a closed space and is limited by the folding locking member. At this time, the front wall limits the forward turning of the backrest, and the folding locking member and the clamping groove limit the backward turning of the backrest. The positioning protrusion and the positioning clamping groove limit the maximum angle of the folding mechanism, and support the rear base, so that the child can sit in the carrying state.

[0032] Further, in the carrying state, the forward turning of the backrest is not limited, so that the safety belt lacks a fixed point, and the safety of the child when sitting needs to be improved. Therefore, the technical solution provided by the embodiment of the application is to design a clamping groove capable of cooperating with the folding locking member, so that the folding locking member and the clamping groove cooperate with each other to unidirectionally limit the folding mechanism to prevent the seat from changing to the carrying state. The backrest limited in the forward turning carrying state can fix the safety belt. According to the different shapes of the folding locking member, the number of clamping grooves is not limited to one or two.

[0033] 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 to the front wall, the other end is hinged to the front base fixed part, and the front base fixed part is hinged to the rear base through the folding mechanism. In the carrying state, the front base moving part is supported by the front longitudinal connecting member. In the carrying state, the front base moving part and the front wall can be turned backward, the front base moving part is placed above the rear base, and the front wall is limited by the backrest to reduce the hindrance to the legs of the young child.

[0034] The problem of how to prevent theft needs to be considered when long-term storing articles in the carrying state; the problem of accidental unlocking of the folding locking member limiting and folding mechanism may exist in the carrying state. Therefore, according to another aspect of the present application, a folding security device for a multifunctional child seat of a two-wheeled vehicle is provided, comprising: a rear pull rod, a front-rear connecting rod, a rear longitudinal connecting member, a transverse connecting member, a lock body, a lock plate, and the multifunctional child seat of the two-wheeled vehicle.

[0035] The rear longitudinal connecting member is fixed to the folding mechanism and used for mounting the rear pull rod. The rear longitudinal connecting member can be a hollow structure or a solid structure, and its extension path can be a straight line or a curve.

[0036] The rear pull rod is slidably arranged on the rear longitudinal connecting member and indirectly connected with the folding locking member through the front-rear connecting rod.

[0037] The front-rear connecting rod connects the folding locking member and the rear pull rod, and the movement of the folding locking member is transmitted to the rear pull rod through the front-rear connecting rod.

[0038] The lock body is fixed to the transverse connecting member and used for realizing the function of theft prevention. The lock plate is connected to the lock body and used for directly or indirectly limiting the folding locking member. The rear pull rod or the front-rear connecting rod is limited by the lock plate, and the folding locking member is indirectly limited.

[0039] The introduction of the transverse connecting member provides a wider fixing point for the lock body. When there is more than one rear longitudinal connecting member, the transverse connecting member simultaneously connects multiple rear longitudinal connecting members, which can reinforce the seat.

[0040] When the folding locking member slides longitudinally, the rear pull rod is driven by the front-rear connecting rod to slide longitudinally; when the folding locking member rotates around the hinge point, the rear pull rod is driven by the front-rear connecting rod to slide longitudinally; when the folding locking member slides transversely, the rear pull rod is driven by the front-rear connecting rod to slide transversely; when the folding locking member is rotated into the first folding member, the rear connecting rod is sleeved on the folding locking member, at this time, the rear pull rod and the front-rear connecting rod do not rotate, and the rear pull rod is driven by the front-rear connecting rod to slide transversely.

[0041] The introduction of the folding security device can realize the theft prevention of articles carried by the vehicle in the carrying state and prevent the accidental unlocking of the folding mechanism in the carrying state.

[0042] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0043] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the technical solutions in the related art, below the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0045] Fig. 1 is a structural schematic diagram of a first embodiment of a first kind of two-wheeled vehicle multifunctional child seat in a state switching time.

[0046] Fig. 2 is a structural schematic diagram of the first embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a person-carrying use time.

[0047] Fig. 3 is a structural schematic diagram of the first embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a cargo-carrying use time.

[0048] Fig. 4 is a partial sectional view of a second embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a cargo-carrying use time.

[0049] Fig. 5 is a movement schematic diagram of a front wall turning back in a person-carrying use time of the second embodiment of the first kind of two-wheeled vehicle multifunctional child seat.

[0050] Fig. 6 is a structural schematic diagram of the second embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a person-carrying use time.

[0051] Fig. 7 is a structural schematic diagram of a third embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a state switching time.

[0052] Fig. 8 is a movement schematic diagram of a front part base moving member turning back in a person-carrying use time of the third embodiment of the first kind of two-wheeled vehicle multifunctional child seat.

[0053] Fig. 9 is a structural schematic diagram of the third embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a cargo-carrying use time.

[0054] Fig. 10 is a structural schematic diagram of the third embodiment of the first kind of two-wheeled vehicle multifunctional child seat in a person-carrying use time.

[0055] Fig. 11 is a structural schematic diagram of a first embodiment of a second kind of two-wheeled vehicle multifunctional child seat in a state switching time.

[0056] Fig. 12 is a structural schematic diagram of the first embodiment of the second kind of two-wheeled vehicle multifunctional child seat in a person-carrying use time.

[0057] Fig. 13 is a structural schematic diagram of the first embodiment of the second kind of two-wheeled vehicle multifunctional child seat in a cargo-carrying use time.

[0058] Fig. 14 is a schematic view of the second embodiment of the second type of stroller multifunctional child seat in a state of carrying a person.

[0059] Fig. 15 is a schematic view of the second embodiment of the second type of stroller multifunctional child seat in a state of carrying an object.

[0060] Fig. 16 is a schematic view of the third embodiment of the second type of stroller multifunctional child seat in a state of switching.

[0061] Fig. 17 is a schematic view of the third embodiment of the second type of stroller multifunctional child seat in a state of carrying a person.

[0062] Fig. 18 is a schematic view of the third embodiment of the second type of stroller multifunctional child seat in a state of carrying an object.

[0063] Fig. 19 is a schematic view of the first embodiment of the third type of stroller multifunctional child seat in a state of switching.

[0064] Fig. 20 is a schematic view of the first embodiment of the third type of stroller multifunctional child seat in a state of carrying a person.

[0065] Fig. 21 is a schematic view of the first embodiment of the third type of stroller multifunctional child seat in a state of carrying an object.

[0066] Fig. 22 is a schematic view of the second embodiment of the third type of stroller multifunctional child seat in a state of switching.

[0067] Fig. 23 is a schematic view of the second embodiment of the third type of stroller multifunctional child seat in a state of carrying a person.

[0068] Fig. 24 is a schematic view of the second embodiment of the third type of stroller multifunctional child seat in a state of carrying an object.

[0069] Fig. 25 is a schematic view of the third embodiment of the third type of stroller multifunctional child seat in a state of switching.

[0070] Fig. 26 is a schematic view of the third embodiment of the third type of stroller multifunctional child seat in a state of carrying a person with the front base moving member turned backward.

[0071] Fig. 27 is a schematic view of the third embodiment of the third type of stroller multifunctional child seat in a state of carrying an object.

[0072] Fig. 28 is a schematic view of the third embodiment of the third type of stroller multifunctional child seat in a state of carrying a person.

[0073] Figure 29 is a structural schematic diagram of a first embodiment of the folding safety device of the present application.

[0074] Figure 30 is a structural schematic diagram of a second embodiment of the folding safety device of the present application.

[0075] Figure 31 is a structural schematic diagram of a third embodiment of the folding safety device of the present application.

[0076] Figure 32 is a partial structural exploded view of the third embodiment of the folding safety device of the present application.

[0077] Reference signs: 1, folding mechanism; 11, first folding member; 12, second folding member; 13, folding locking member; 14, clamping groove; 15, positioning protrusion; 16, positioning clamping groove; 17, rear pull rod; 18, front-rear connecting rod; 19, rear longitudinal connecting member; 20, transverse connecting member; 2, base member; 21, front base; 211, front base moving member; 212, front base fixed member; 22, rear base; 3, limiting frame; 31, front vertical frame; 32, front longitudinal connecting member; 4, front wall blocking member; 5, backrest member; 6, side wing member; 91, lock body; 92, lock plate. DETAILED DESCRIPTION

[0078] In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0079] For the convenience of description, the terms "front", "rear", "left", and "right" in the following text are determined according to the first perspective when a child is riding, and are irrelevant to the left and right directions of the drawings themselves. For the sake of brevity, the two-wheeled vehicle multifunctional child seat provided in the following embodiments can be referred to simply as "seat".

[0080] 1. First embodiment of the first two-wheeled vehicle multifunctional child seat

[0081] As shown in Figure 1, the present embodiment provides a two-wheeled vehicle multifunctional child seat, 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.

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

[0083] As shown in Fig. 3, 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 slidably 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. 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 front wall member 4 limits the maximum angle of the forward folding of the backrest member 5. In the object-carrying state, the folding locking member 13 can be operated to enter the clamping groove 14 to realize the storage of the objects on the vehicle.

[0084] In this embodiment, the seat can be installed in the forward direction. In the passenger-carrying state, the child faces the front of the scooter. The front base 21 is connected to the rear luggage rack of the scooter. If the seat is installed in the forward direction, the length of the rear luggage rack of the scooter 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. The longitudinal length of the rear base 22 is less than the longitudinal length of the rear luggage rack of the scooter, so that the front base 21 can be fixed to the rear luggage rack of the scooter when the child seat of the embodiment is installed in the reverse direction with the passenger facing backward. At this time, the rear base 22 can be supported and limited by the rear luggage rack of the scooter.

[0085] In this embodiment, the number of the first folding member 11, the second folding member 12 and the limiting frame 3 is two, and the number of the folding locking member 13 is one, which has a circular cross section. The folding locking member 13 is slidably arranged on the second folding member 12 and can slide longitudinally on the second folding member 12. In this embodiment, the direction of the forward and backward sliding of the folding locking member 13 is inclined. Under the action of gravity, the folding locking member 13 can be embedded in the clamping groove 14 and remain in position. When the rear base 22 is folded forward, the second folding member 12 and the folding locking member 13 are folded forward together with the rear base 22 around the hinge point.

[0086] In this embodiment, the first folding member 11 and the front base 21, the second folding member 12 and the rear base 22, the front vertical frame 31 and the front longitudinal connecting member 32, the front base 21 and the front longitudinal connecting member 32, the backrest member 5 and the side wing member 6 are respectively integrally formed of the same material. The maximum angle of the frontward turning of the front wall member 4 is limited by the front vertical frame 31.

[0087] The seat provided in this embodiment has two use states, one is a human-carrying use state as shown in FIG. 2, and the other is a cargo-carrying use state as shown in FIG. 3. The specific process of the conversion between the two states is as follows:

[0088] In the human-carrying use state, the folding lock 13 is unlocked, and the backrest member 5 is pushed to make the second folding member 12, the folding lock 13, the rear base 22, the backrest member 5 and the side wing member 6 turn forward together by swinging. When the backrest member 5 is folded and close to the front wall member 4, the front wall member 4, the front base 21, the rear base 22, the backrest member 5 and the side wing member 6 form a closed structure. After the second folding member 12 and the folding lock 13 are turned around the hinge point, the folding lock 13 slides on the second folding member 12 under the action of gravity and is embedded in the clamping groove 14 of the first folding member 11, so that the folding mechanism 1 is locked. At this time, the backrest member 5, the rear base 22 and the side wing member 6 are all limited, and the seat enters the cargo-carrying use state.

[0089] In the cargo-carrying use state, the folding lock 13 is pulled and the backrest member 5 is folded backward until the rear base 22 is supported by the rear luggage rack of the two-wheeled vehicle, and then the front wall member 4 is folded backward to be placed behind the front base 21, so that the seat enters the human-carrying use state.

[0090] 2. The second embodiment of the two-wheeled vehicle multifunctional child seat

[0091] As shown in FIG. 4, this embodiment provides a two-wheeled vehicle multifunctional child seat, which comprises a folding mechanism 1, a base member 2, a limiting frame 3, a front wall member 4, a backrest member 5 and a side wing member 6. FIG. 4 is a partial sectional view, which shows only half of the backrest member 5 and the right side wing member 6.

[0092] As shown in Fig. 5, 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 barrier member 4 is hinged to the front end of the front base 21, 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. As shown in Fig. 6, the longitudinal length of the rear base 22 is less than that of the rear luggage carrier of the two-wheeled vehicle, and the front base 21 is connected to the rear luggage carrier of the two-wheeled vehicle. The limiting rack 3 comprises a front vertical rack 31 and a front longitudinal connecting member 32, the front vertical rack 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.

[0093] As shown in Fig. 4, 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 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 limit the folding mechanism 1 in the one-way direction in the load-carrying state, so that the seat cannot be converted to the load-carrying state. After the backrest member 5 is folded forward, the folding locking member 13 is twisted to be embedded in the clamping groove 14, thereby locking the folding mechanism 1 to store the vehicle articles.

[0094] The difference between the first embodiment of the two-wheeled vehicle multifunctional child seat and the above-mentioned first embodiment is that the front base 21 and the front longitudinal connecting member 32, the front vertical rack 31 and the front longitudinal connecting member 32 of the present embodiment are respectively combined by two parts of different materials; the folding locking member 13 is a bolt, which is detachably connected to the second folding member 12; the number of clamping grooves 14 on a single first folding member 11 is one; and the clamping groove 14 and the folding locking member 13 can cooperate to limit the folding mechanism 1 in the load-carrying state, so that the seat cannot be converted to the load-carrying state.

[0095] 3. The third embodiment of the first two-wheeled vehicle multifunctional child seat

[0096] As shown in Fig. 7, the present embodiment provides a two-wheeled vehicle multifunctional child seat, which comprises a folding mechanism 1, a base member 2, a limiting rack 3, a front barrier member 4, a backrest member 5, and a side wing member 6.

[0097] As shown in Fig. 8, the side wing 6 is fixed to the left and right sides of the backrest 5. The base 2 comprises a front base 21 and a rear base 22, the front base 21 comprises a front base moving part 211 and a front base fixed part 212, the backrest 5 is connected to the rear end of the rear base 22, the front barrier 4 is hinged to the front end of the front base moving part 211, the front base 21 and the rear base 22 are hinged through the folding mechanism 1, and the front base moving part 211 is hinged to the front base fixed part 212. The rear base 22, the backrest 5 and the side wing 6 can be folded forward together by swinging. The limiting frame 3 comprises a front vertical frame 31 and a front longitudinal connecting part 32, the front vertical frame 31 is fixed to the front longitudinal connecting part 32, and the front longitudinal connecting part 32 is directly fixed to the folding mechanism 1. The longitudinal length of the rear base 22 is less than that of the rear rack of the two-wheeled vehicle, and the front base fixed part 212 is fixed to the rear rack of the two-wheeled vehicle.

[0098] As shown in Fig. 9, the folding mechanism 1 comprises a first folding part 11, a second folding part 12 and a folding locking part 13. The folding locking part 13 is hinged to the second folding part 12. The first folding part 11 is provided with a clamping groove 14, which can cooperate with the folding locking part 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. The existence of the front barrier 4 limits the maximum angle of the forward folding of the backrest 5, and the folding mechanism 1 can be locked by operating the folding locking part 13 after the backrest 5 is folded forward, thereby storing the vehicle articles.

[0099] The main difference between the first embodiment of the two-wheeled vehicle multifunctional child seat and the above-mentioned first embodiment is that the folding locking part 13 of the present embodiment is hinged to the second folding part 12, and the folding locking part 13 enters the clamping groove 14 in the first folding part 11 to realize the limiting function by swinging under the action of gravity; the front base 21 of the present embodiment comprises a front base moving part 211 and a front base fixed part 212, the front base fixed part 212 and the first folding part 11 are two parts made of different materials and connected to each other; the front vertical frame 31 and the front longitudinal connecting part 32 of the present embodiment are integrally formed.

[0100] From the above three embodiments, it can be known that in the manned use state and the cargo carrying use state, the folding locking member 13 can be designed to be obliquely slid on the second folding member 12, the gravity is used to make the folding locking member 13 slide and enter the clamping groove 14, and the position of the folding locking member 13 is limited to limit the folding mechanism 1; the friction between the folding locking member 13 and the second folding member 12 can also be used to limit the position of the folding locking member 13, so as to limit the folding mechanism 1; the folding locking member 13 can also be designed to be hinged to the second folding member 12, and when the center of mass of the folding locking member 13 is lower than the hinge point, the folding locking member 13 enters the clamping groove 14 under the action of gravity, so as to limit the position of the folding locking member 13 and limit the folding mechanism 1; the folding locking member 13 can also be designed in the form of a bolt, so that it is screwed into the clamping groove 14 on the first folding member 11, and the position of the folding locking member 13 is limited by the friction force, so as to limit the folding mechanism 1.

[0101] 4. First embodiment of the second two-wheeled vehicle multifunctional child seat

[0102] As shown in FIG. 11, the present embodiment provides a two-wheeled vehicle multifunctional child seat, which comprises a folding mechanism 1, a base member 2, a limiting frame 3, a front barrier member 4, a backrest member 5, and a side wing member 6.

[0103] 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 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 directly fixed to the folding mechanism 1.

[0104] 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 unidirectionally limit the folding mechanism 1 in the manned 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 a child to sit. The clamping groove 14 can also cooperate with the folding locking member 13 to unidirectionally limit the folding mechanism 1 in the cargo carrying use state, so that the seat cannot be converted to the manned use state. In the cargo carrying use state, the front barrier member 4 limits the maximum forward folding angle of the backrest member 5, and the folding mechanism 1 limits the backward folding of the backrest member 5.

[0105] In this embodiment, the first folding member 11 and the front base 21, the second folding member 12 and the rear base 22, the backrest member 5 and the side wing member 6, 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 wall blocking member 4 forwardly turned is limited by the front vertical frame 31.

[0106] 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 turn forward together by swinging, 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 form a closed structure after being folded. 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 turned 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 turned 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 turned backward, and the seat enters the human-carrying use state.

[0107] 5. Second embodiment of the second two-wheeled vehicle multifunctional child seat

[0108] As shown in FIG. 14, the embodiment provides a two-wheeled vehicle multifunctional child seat, 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 by the folding mechanism 1, and the rear base 22, the backrest member 5 and the side wing member 6 can be turned 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 indirectly fixed to the folding mechanism 1 through the front base 21.

[0109] As shown in Fig. 15, the folding mechanism 1 comprises 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. The first folding piece 11 is provided with a clamping groove 14. The clamping groove 14 can cooperate with the folding locking piece 13 to limit the folding mechanism 1 in both directions in the child-carrying state, thereby limiting the unfolding angle of the rear base 22 and enabling the rear base 22 and the backrest 5 to support a 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, thereby preventing the seat from being 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.

[0110] 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-carrying state.

[0111] 6. The third embodiment of the multi-functional child seat for two-wheeled vehicle

[0112] As shown in Fig. 16, the embodiment provides a multi-functional child seat for two-wheeled vehicle, which comprises a folding mechanism 1, a base 2, a limiting frame 3, a front barrier 4, a backrest 5, and a side wing 6.

[0113] As shown in Fig. 17 and Fig. 18, the base 2 comprises a front base 21 and a rear base 22. The front base 21 comprises 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 by the folding mechanism 1. The rear base 22, the backrest 5, and the side wing 6 can be folded forward together by swinging. 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. The front longitudinal connecting piece 32 is directly fixed to the folding mechanism 1.

[0114] As shown in FIG. 18, the folding mechanism 1 comprises a first folding member 11, a second folding member 12, and a folding lock 13, which is slidably arranged on the second folding member 12. A clamping groove 14 is formed on the first folding member 11. The clamping groove 14 can cooperate with the folding lock 13 to limit the folding mechanism 1 in both directions in the child-riding state, thereby limiting the unfolding angle of the rear base 22 and enabling the rear base 22 and the backrest 5 to support a child. 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, thereby preventing 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.

[0115] In the present embodiment, the folding lock 13 is slidably arranged on the second folding member 12. The front vertical frame 31 and the front longitudinal connecting member 32 are integrally formed as two parts of the same material. The front base 21 comprises a front base moving member 211 and a front base fixing member 212. In the child-riding state, the front barrier 4 and the front base moving member 211 can be rearwardly flipped to reduce the hindrance to the legs of a young child.

[0116] The second two-wheeled child seat with multiple functions described above does not rely on the rear luggage carrier of the two-wheeled vehicle, thereby eliminating the influence of environmental features and removing the size limitation of the rear base.

[0117] 7. First embodiment of the third two-wheeled child seat with multiple functions

[0118] As shown in FIG. 19, the present embodiment provides a two-wheeled child seat with multiple functions, which comprises a folding mechanism 1, a base member 2, a limiting frame 3, a front barrier 4, a backrest 5, and side wing members 6.

[0119] As shown in FIG. 20, the base member 2 comprises a front base 21 and a rear base 22, which are hingedly connected by the folding mechanism 1. The front barrier 4 is hingedly connected to the front base 21, and the backrest 5 is connected to the rear end of the rear base 22. The front barrier 4 limits the maximum forward flipping angle of the backrest 5 about the hinge point. When the backrest 5 is folded forward to be close to the front barrier 4, the front barrier 4, the front base 21, the rear base 22, and the backrest 5 form a closed structure together. The side wing members 6 are connected to the left and right sides of the backrest 5, and are used to enclose the closed structure formed by the front barrier 4, the front base 21, the rear base 22, and the backrest 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.

[0120] 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 with the front base 21, and the second folding member 12 is connected with the rear base 22. The folding locking member 13 is slidably arranged on the second folding member 12. The first folding member 11 is provided with a clamping groove 14, and the folding locking member 13 can be matched with the clamping groove 14 to limit the folding mechanism 1 in one direction in the object-carrying state, so that the seat cannot be changed to the person-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 person-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 person-carrying state, so as to ensure that the seat has the seatability regardless of how it is installed on the two-wheeled vehicle, and the influence of environmental features is eliminated.

[0121] The folding seat is in the object-carrying state when part of the structure forms an enclosed space and the folding locking member 13 limits the folding mechanism 1. In the object-carrying state, the front blocking 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 objects. In the person-carrying state, the positioning protrusion 15 and the positioning clamping groove 16 limit the folding mechanism 1, and further limit the maximum angle of the rearward folding of the rear base 22, so as to realize the seating of children.

[0122] The front vertical frame 31 and the front longitudinal connecting member 32 of the present embodiment are two parts of different materials connected with each other. The first folding member 11 and the front longitudinal connecting member 32, and the second folding member 12 and the rear base 22 of the present embodiment are respectively two parts of the same material integrally formed. The folding locking member 13 of the present embodiment is obliquely arranged on the second folding member 12, so that the folding locking member 13 can always be embedded in the clamping groove 14.

[0123] 8. The third two-wheeled vehicle multifunctional child seat second embodiment

[0124] As shown in Fig. 22, the present embodiment provides a two-wheeled vehicle multifunctional child seat, which comprises a folding mechanism 1, a base member 2, a limiting frame 3, a front blocking member 4, a backrest member 5 and a side wing member 6.

[0125] As shown in Fig. 23, the base member 2 comprises a front base 21 and a rear base 22, the front barrier 4 is hinged to the front end of the front base 21, 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. In the passenger use state, the front barrier 4 can be flipped backward and placed on 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 5, and the side wing member 6 can be flipped 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 indirectly fixed to the folding mechanism 1 through the front base 21.

[0126] As shown in Fig. 24, 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. 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 cargo carrying state, so that the seat cannot be converted to the passenger use state, and can also one-way limit the folding mechanism 1 in the passenger use state, so that the seat cannot be converted to the cargo carrying 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 passenger use state. The presence of the front barrier 4 limits the maximum angle of the forward folding of the backrest member 5. After pushing the backrest member 5 to fold forward, operating the folding locking member 13 to limit the folding mechanism 1 can achieve the storage of the vehicle cargo.

[0127] Different from the first embodiment of the third type of two-wheeled multifunctional child seat: the folding locking member 13 of the present embodiment is hinged to the second folding member 12; the positioning protrusion 15 of the present embodiment is arranged on the second folding member 12, and the positioning clamping groove 16 is arranged on the first folding member 11; the front base 21 of the present embodiment comprises a front base moving member 211 and a front base fixed member 212, and the front barrier 4 and the front base moving member 211 can be flipped backward in the passenger use state.

[0128] 9. Third embodiment of the third type of two-wheeled multifunctional child seat

[0129] As shown in Fig. 25, the present embodiment provides a two-wheeled multifunctional child seat, which comprises a folding mechanism 1, a base member 2, a limiting frame 3, a front barrier 4, a backrest member 5, and a side wing member 6.

[0130] As shown in Fig. 26, the base member 2 comprises a front base 21 and a rear base 22, the front base 21 comprises 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, 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 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.

[0131] As shown in Fig. 27, 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 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 limit the folding mechanism 1 in one direction in the object carrying state, so that the seat cannot be converted to the human carrying 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 state. The existence of the front wall member 4 limits the maximum folding angle of the backrest member 5. After pushing the backrest member 5 to fold forward, the folding locking member 13 is operated to limit the folding mechanism 1, thereby achieving the storage of the articles on the vehicle.

[0132] 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 placed above the rear base 22, and the folded front wall member 4 is supported by the backrest member 5.

[0133] 10. First embodiment of folding safety device

[0134] The first embodiment of the folding safety device comprises a rear pull rod 17, a front-rear connecting rod 18, a rear longitudinal connecting member 19, a transverse connecting member 20, a lock body 91, a lock plate 92, and the above-mentioned multifunctional child seat of the bicycle, as shown in Fig. 29.

[0135] The rear longitudinal connecting member 19 is fixed to the second folding member 12, and the rear pull rod 17 is slidably arranged in the rear 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 conducted to the rear pull rod 17 through the front-rear connecting rod 18, and the rear pull rod 17 is longitudinally slid forward and backward under the driving of the front-rear connecting rod 18.

[0136] The transverse connecting member 20 is connected to the rear longitudinal connecting member 19 and used for mounting the lock body 91. In this embodiment, the transverse connecting member 20 is connected to two rear longitudinal connecting members 19, which can reinforce the seat.

[0137] 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 body 91 is operated to drive the lock plate 92 to be displaced, and the rear pull rod 17 is limited to make the folding locking member 13 be limited.

[0138] The folding member safety device is introduced to solve the problem of how to prevent theft of long-term stored articles in the carrying state and how to improve the reliability of the folding mechanism in the carrying state.

[0139] 11. The second embodiment of the folding safety device

[0140] The second embodiment of the folding safety device includes the rear pull rod 17, the front-rear connecting rod 18, the rear longitudinal connecting member 19, the transverse connecting member 20, the lock body 91, the lock plate 92, and the above-mentioned multifunctional child seat of the bicycle, as shown in FIG. 30.

[0141] The rear longitudinal connecting member 19 is fixed to the second folding member 12, and the rear pull rod 17 is slidably arranged in the rear 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 conducted to the rear pull rod 17 through the front-rear connecting rod 18, and the rear pull rod 17 is longitudinally slid forward and backward under the driving of the front-rear connecting rod 18.

[0142] The transverse connecting member 20 is connected to the rear longitudinal connecting member 19 and used for mounting the lock body 91. In this embodiment, the transverse connecting member 20 is connected to two rear longitudinal connecting members 19, which can reinforce the seat.

[0143] 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 body 91 is operated to drive the lock plate 92 to be displaced, and the rear pull rod 17 is limited to make the folding locking member 13 be limited.

[0144] As shown in FIG. 30, unlike the first embodiment of the folding safety device: the seat of the present embodiment is the multifunctional child seat of the two-wheeled vehicle of claim 8; the folding locking piece 13 of the present embodiment is hinged to the second folding piece 12; the clamping groove 14 of the present embodiment can cooperate with the folding locking piece 13 in both the passenger-carrying use state and the cargo-carrying use state, limiting the folding mechanism 1 in both directions; one end of the front-rear connecting rod 18 of the present embodiment is hinged to the folding locking piece 13, and the other end is fixed to the rear pull rod 17.

[0145] 12. The third embodiment of the folding safety device

[0146] As shown in FIG. 31 and FIG. 32, unlike the first embodiment of the folding safety device: the seat of the present embodiment is the multifunctional child seat of the two-wheeled vehicle of claim 8; the second folding piece 12 of the present embodiment is connected to the front base 21, and the folding locking piece 13 is a bolt that is detachably connected to the second folding piece 12; the first folding piece 11 is connected to the rear base, and the clamping groove 14 is formed in the first folding piece 11, which is in the shape of two round holes, as shown in FIG. 32; the rear pull rod 17 of the present embodiment is transversely slidably arranged on the rear longitudinal connecting piece 19, and one end of the front-rear connecting rod 18 is sleeved on the folding locking piece 13, and the other end is fixed to the rear pull rod 17. When the depth of the folding locking piece 13 is adjusted by rotating it, the front-rear connecting rod 18 sleeved on the folding locking piece 13 moves transversely together with the rear pull rod 17; the number of the rear longitudinal connecting pieces 19 of the present embodiment is one, and the locking piece 92 is fixed to the lock body 91, and the lock body 91 is fixed to the rear longitudinal connecting piece 19 through the transverse connecting piece 20. Rotating the locking piece 92 by controlling the lock body 91 restricts the transverse movement of the front-rear connecting rod 18, thereby limiting the folding locking piece 13. The limited folding locking piece 13 cannot be rotated out of the clamping groove 14, which improves the reliability of the folding mechanism 1 in the passenger-carrying use state and realizes the anti-theft storage of the items carried with the vehicle in the cargo-carrying use state.

[0147] The present application provides a type of multifunctional child seat for two-wheeled vehicles with two use states, which takes into account the installation of a rear child seat for carrying passengers and the installation of a trunk for carrying cargo. To achieve the above-mentioned purpose, the folding mechanism 1 is an indispensable specific technical feature. The folding mechanism 1 has a limiting function, which enables the multifunctional child seat for two-wheeled vehicles to remain in the passenger-carrying use state or the cargo-carrying use state. The four independent claims in the present application all contain this specific technical feature of the folding mechanism 1. The first three independent claims sort out different structures of the folding mechanism 1 and give three types of multifunctional child seats for two-wheeled vehicles. The fourth independent claim expands the folding mechanism 1, which on the one hand makes the unlocking operation of the folding mechanism 1 more convenient, and on the other hand makes the limiting of the folding mechanism 1 more reliable, and at the same time solves the problem of anti-theft storage of items in the cargo-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 base component (2) includes a front base (21) and a rear base (22), the rear base (22) and the front base (21) are hinged by the folding mechanism (1), and 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). Front enclosure (4) is used to form a enclosure at the front when the cargo is in use; 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 front enclosure (4) is hinged to the front base (21), and the forward flipping of the front enclosure (4) is limited by the front vertical frame (31).

3. A multi-functional child seat for a two-wheeled vehicle as described in claim 1, characterized in that, 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 disposed on the second folding member (12), or detachably connected to the second folding member (12), or 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 unidirectionally limit the folding mechanism (1) in the cargo-carrying state, so that the two-wheeled vehicle multi-functional child seat cannot be transformed from the cargo-carrying state to the passenger-carrying state; and / or, The longitudinal length of the rear base (22) is less than the longitudinal length of the rear clothes rack of the two-wheeled vehicle.

4. A multi-functional child seat for a two-wheeled vehicle as described in claim 3, 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.

5. 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 part (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).

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 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 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) and the front base (21) are hinged by 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). Front enclosure (4) is used to form a enclosure at the front when the cargo is in use; 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.

7. A multi-functional child seat for a two-wheeled vehicle as described in claim 6, characterized in that, The slot (14) can also cooperate with the folding locking member (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.

8. A multi-functional child seat for a two-wheeled vehicle as described in claim 6, characterized in that, The front enclosure (4) is hinged to the front base (21), and the forward flipping of the front enclosure (4) is limited by the front vertical frame (31).

9. A multi-functional child seat for a two-wheeled vehicle as described in claim 6, 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 multi-functional child seat for a two-wheeled vehicle as described in claim 6, 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 part (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).

11. 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 to unidirectionally limit the folding mechanism (1) in the cargo-carrying state, so that the two-wheeled vehicle multi-functional child seat cannot be transformed into a passenger-carrying state. 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), wherein the rear base (22) and the front base (21) are hinged by 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.

12. A multi-functional child seat for a two-wheeled vehicle as described in claim 11, 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.

13. A multi-functional child seat for a two-wheeled vehicle as described in claim 11, 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 part (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).

14. A folding safety device for a multi-functional child seat in a two-wheeled vehicle, characterized in that, include: The rear pull rod (17) is indirectly connected to the folding lock (13) of the two-wheeled vehicle multi-functional child seat according to any one of claims 1 to 13, so as to limit the folding lock (13) from a distance; The rear longitudinal connector (19) is fixed to the folding mechanism (1), and the rear pull rod (17) is slidably disposed 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 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).

15. The folding safety device for a multi-functional child seat in a two-wheeled vehicle as described in claim 14, characterized in that, Also includes: 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 locking plate (92) is also used to limit the front and rear connecting rods (18).

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