阅读说明：本技术 折叠儿童车 (Folding children's cycle ) 是由 崔恒龙 蔡辉 陈勇 于 2019-10-24 设计创作，主要内容包括：本发明公开了一种折叠儿童车,包括车架、枢转连接在车架前部的把手前轮组件,把手前轮组件包括把手杆、前轮支撑杆、连接在把手杆的上部的把手、连接在前轮支撑杆的下部的前轮组件,把手杆的下部与前轮支撑杆的上部通过同步转动机构而能够同步转动地相连接,把手杆与前轮支撑杆之间的转动轴线和把手前轮组件与车架之间的转动轴向成角度设置,折叠儿童车具有打开状态和折叠状态,当其处于折叠状态时,把手杆和前轮支撑杆相互靠近,并且均与车架相靠拢。本折叠儿童车,在折叠时,把手杆和前轮支撑杆能够同步转动而相对车架收拢,折叠操作简单快捷,整车折叠后体积小,不占用空间,容易携带。(The invention discloses a folding child bicycle, which comprises a frame and a handle front wheel assembly pivotally connected to the front part of the frame, wherein the handle front wheel assembly comprises a handle rod, a front wheel supporting rod, a handle connected to the upper part of the handle rod and a front wheel assembly connected to the lower part of the front wheel supporting rod, the lower part of the handle rod and the upper part of the front wheel supporting rod can be synchronously and rotatably connected through a synchronous rotating mechanism, a rotating axis between the handle rod and the front wheel supporting rod and a rotating axis between the handle front wheel assembly and the frame are arranged at an angle, the folding child bicycle has an opening state and a folding state, and when the folding child bicycle is in the folding state, the handle rod and the front wheel supporting rod are close to each other and are close to the frame. This folding child's bike, when folding, handle bar and front wheel bracing piece can synchronous rotation and relative frame draw in, and folding operation is simple swift, and is small after whole car is folding, occupation space not, carries easily.)

1. A folding child's bike comprising a frame, a handlebar front wheel assembly pivotally connected to the front of the frame, characterized in that: the handle front wheel subassembly includes handle bar (2), front wheel bracing piece (3), connects front wheel subassembly (6) of the lower part of front wheel bracing piece (3), the lower part of handle bar (2) with the upper portion of front wheel bracing piece (3) is connected through synchronous slewing mechanism and can rotate in step, synchronous slewing mechanism's axis of rotation lead extends along left right direction, and handle front wheel subassembly extends along upper and lower direction around frame pivoted axis of rotation lead, folding child's bike has open mode and fold condition, when it is in fold condition, handle bar (2) and front wheel bracing piece (3) be close to each other, and all with the frame is drawn close together mutually.

2. The folding child's vehicle of claim 1, characterized in that: the synchronous rotating mechanism comprises a first gear (11) fixedly connected to the lower portion of the handle rod (2) and a second gear (12) fixedly connected to the upper portion of the front wheel supporting rod (3), and the first gear (11) is meshed with the second gear (12).

3. The folding child's vehicle of claim 2, characterized in that: the handle front wheel assembly further comprises a base (10), the base (10) is pivotally connected with the front portion of the frame through a rotating shaft (15), and the first gear (11) and the second gear (12) are rotatably connected to the base (10).

4. The folding child's vehicle of claim 1, characterized in that: when the folding buggy is in an opening state, the axis of the handle rod (2) is coincided with the axis of the front wheel supporting rod (3).

5. The folding child's vehicle of claim 1, characterized in that: the handle front wheel assembly further comprises a base, the base (10) is in pivot connection with the front portion of the frame through a rotating shaft (15), the lower portion of the handle rod (2) and the upper portion of the front wheel supporting rod (3) are rotatably connected to the base (10) through a synchronous rotating mechanism, and a first locking mechanism for locking the relative positions of the handle rod (2), the front wheel supporting rod (3) and the base (10) when the folding buggy is in an opened state is arranged among the handle rod (2), the front wheel supporting rod (3) and the base (10).

6. The folding child's vehicle of claim 5, characterized in that: the first locking mechanism comprises front locking grooves (16) respectively arranged on the handle rod (2) and the front wheel supporting rod (3), an unlocking piece (17) movably connected to the base (10), and two front locking hooks (18) arranged on the unlocking piece (17) and respectively detachably connected with the front locking grooves (16) on the handle rod (2) and the front wheel supporting rod (3).

7. The folding child's vehicle of claim 6, characterized in that: the first locking mechanism further comprises an elastic member (21) which is connected between the base (10) and the unlocking member (17) and applies force to the unlocking member (17) to connect the front locking hook (18) with the front locking groove (16).

8. The folding child's vehicle of claim 1, characterized in that: the frame comprises a frame cross rod (1) with the front part pivotally connected with the handle front wheel component, two rear wheel support rods (4) with the upper parts rotatably connected with the rear part of the frame cross rod (1) and respectively positioned at the left side and the right side of the frame cross rod (1), two connecting rods (5) with one ends rotatably and slidably connected with the frame cross rod (1) and respectively positioned at the left side and the right side of the frame cross rod (1), the other ends of the two connecting rods (5) are respectively rotatably connected with the rear wheel support rods (4) at the same side, the bottoms of the two rear wheel support rods (4) are respectively connected with a rear wheel (7), when the folding baby carriage is in a folding state, the handle bar (2), the front wheel support bar (3), the connecting rod (5) and the rear wheel support bar (4) are all close to the frame cross bar (1).

9. The folding child's vehicle of claim 8, characterized in that: when the folding child bicycle is in a folding state, the front wheel assembly (6) is close to the rear part of the frame cross rod (1), and the rear wheel (7) is close to the front part of the frame cross rod (1).

10. The folding child's vehicle of claim 8, characterized in that: frame horizontal pole (1) go up sliding connection and have slider (8), two the one end of connecting rod (5) is all rotated and is connected on slider (8).

Technical Field

The invention relates to a folding child car.

Background

The child's bike is a commonly used toy for children, and generally comprises a frame cross bar, a rear wheel support connected to the rear portion of the frame cross bar, a rear wheel mounted at the bottom of the rear wheel support, and a front fork pivotally connected to the front portion of the frame cross bar, wherein the top of the front fork is connected with a handle, and the bottom of the front fork is connected with a front wheel. The child bicycle which can not be folded occupies a relatively large space when not in use and is inconvenient to carry. In the prior art, the child bicycle with the structure is designed to be foldable, and particularly, the handle and the front wheel are difficult to fold.

Disclosure of Invention

In order to solve the above problems, it is an object of the present invention to provide a folding child's vehicle.

In order to achieve the above purposes, the invention adopts the technical scheme that: the utility model provides a folding child's bike, which comprises a vehicle rack, the anterior handle front wheel subassembly of pivotal connection at the frame, the handle front wheel subassembly includes the handle bar, the front wheel bracing piece, connect the front wheel subassembly in the lower part of front wheel bracing piece, the lower part of handle bar is connected with the upper portion of front wheel bracing piece through synchronous slewing mechanism and can rotate in step, synchronous slewing mechanism's axis of rotation axis line sets up along left right direction, the handle front wheel subassembly extends along upper and lower direction around frame pivoted axis of rotation axis line, folding child's bike has open mode and fold condition, when it is fold condition, handle bar and front wheel bracing piece are close to each other, and all draw close together with the frame.

Furthermore, the synchronous rotating mechanism comprises a first gear fixedly connected to the lower part of the handle rod and a second gear fixedly connected to the upper part of the front wheel supporting rod, and the first gear is meshed with the second gear.

Still further, the handlebar front wheel assembly further comprises a base pivotally connected to the front portion of the frame by a pivot shaft, and the first gear and the second gear are both rotatably connected to the base.

Further, when the folding buggy is in an opening state, the axis of the handle bar coincides with the axis of the front wheel supporting bar.

The handle front wheel assembly further comprises a base, the base is pivotally connected with the front portion of the frame through a rotating shaft, the lower portion of the handle rod and the upper portion of the front wheel supporting rod are rotatably connected to the base through a synchronous rotating mechanism, and a first locking mechanism for locking the relative positions of the handle rod, the front wheel supporting rod and the base when the folding child bicycle is in an opening state is arranged among the handle rod, the front wheel supporting rod and the base.

Further, the first locking mechanism includes front locking grooves respectively provided on the handle bar and the front wheel support bar, an unlocking member movably connected to the base, and two front locking hooks provided on the unlocking member and detachably connected to the front locking grooves respectively provided on the handle bar and the front wheel support bar.

Further, the first locking mechanism further includes an elastic member connected between the base and the unlocking member and applying a force to the unlocking member to connect the front latch hook with the front latch groove.

Further, the frame includes that the front portion is connected with handle front wheel subassembly looks pivotal connection's frame horizontal pole, upper portion rotates with the rear portion of frame horizontal pole mutually and is connected and be located two rear wheel bracing pieces of frame horizontal pole left and right sides respectively, one end is connected and be located two connecting rods of frame horizontal pole left and right sides respectively with the frame horizontal pole both rotatable but slidable, the other end of two connecting rods rotates with the rear wheel bracing piece of homonymy respectively mutually and is connected, the bottom of two rear wheel bracing pieces is connected with the rear wheel respectively, when folding child's bike is in fold condition, the handle pole, the front wheel bracing piece, the connecting rod, the rear wheel bracing piece all draws close with the frame horizontal pole.

Further, when the folding child's vehicle is in the folded condition, the front wheel assembly is drawn close to the rear portion of the frame rail and the rear wheel is drawn close to the front portion of the frame rail.

Furthermore, the frame cross rod is connected with a sliding block in a sliding mode, and one end of each connecting rod is rotatably connected to the sliding block.

By adopting the technical scheme, the folding child bicycle is characterized in that the original front fork piece is arranged into the two rods which can be arranged up and down in a rotating mode, namely the handle rod and the front wheel supporting rod, when the folding child bicycle is folded, the two rods can rotate synchronously and are folded in relative to the bicycle frame, the handles and the front wheels are respectively folded in the upper side and the lower side of the bicycle frame through the rotation of the handle rod and the front wheel supporting rod, the folding operation is simple and fast, the folded whole bicycle is small in size, does not occupy space and is easy to carry.

Drawings

FIG. 1 is a side elevational schematic view of a folding child's vehicle in an open position in accordance with one embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of a joint between the handle bar, the front wheel support bar, and the base shown in FIG. 1;

FIG. 3 is a schematic top view of the folding child's vehicle illustrated in FIG. 1;

FIG. 4 is a side elevational schematic view of the folding child's vehicle illustrated in FIG. 1 in a folded condition;

FIG. 5 is a schematic view of a portion of the structure of the joint between the handlebar, the front wheel support bar, and the base shown in FIG. 4;

FIG. 6 is a schematic top view of the folding child's vehicle illustrated in FIG. 4;

the reference numbers in the figures are:

1. a frame rail; 2. a handle bar; 3. a front wheel support bar; 4. a rear wheel support bar; 5. a connecting rod; 6. a front wheel assembly; 7. a rear wheel; 8. a slider; 9. a handle; 10. a base; 11. a first gear; 12. a second gear; 13. a first joint; 14. a second joint; 15. a rotating shaft; 16. a front lock groove; 17. unlocking the lock; 18. a front latch hook; 19. a rear latch hook; 20. a rear lock groove; 21. an elastic member; 22. and pulling a button.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the invention may be more readily understood by those skilled in the art.

As can be seen from the schematic structural views of fig. 1 to 6, the folding child vehicle in the embodiment comprises a vehicle frame and a handle front wheel assembly which is pivotally connected to the front part of the vehicle frame.

The handle front wheel assembly comprises a handle rod 2, a front wheel supporting rod 3, a handle 9 connected to the upper part of the handle rod 2 and a front wheel assembly 6 connected to the lower part of the front wheel supporting rod 3, wherein the lower part of the handle rod 2 is connected with the upper part of the front wheel supporting rod 3 in a synchronous rotating mode through a synchronous rotating mechanism. Specifically, the handle front wheel assembly further includes a base 10 pivotally connected to the front portion of the frame through a rotation shaft 15, and the lower portion of the handle bar 2 and the upper portion of the front wheel support bar 3 are rotatably connected to the base 10 through a synchronous rotation mechanism.

The rotation axis line of the synchronous rotation mechanism and the rotation axis line between the handle front wheel assembly and the frame are arranged in an angle mode. The rotation axis of the synchronous rotation mechanism is the rotation axis of the relative rotation between the handle bar 2 and the front wheel support bar 3. The folding buggy has an opening state and a folding state, and when the folding buggy is in the opening state, the axial lead of the handle bar 2 is coincided with the axial lead of the front wheel supporting bar 3; when the folding buggy is in a folded state, the handle bar 2 and the front wheel support bar 3 are close to each other and are both close to the frame.

In a more preferred embodiment, the synchronous rotating mechanism includes a first gear 11 fixedly coupled to a lower portion of the handle bar 2, a second gear 12 fixedly coupled to an upper portion of the front wheel supporting bar 3, and the first gear 11 and the second gear 12 are engaged with each other. When one of the handle bar 2 and the front wheel support bar 3 is rotated by the action of the two gears engaged with each other, the other can be rotated synchronously. Specifically, the first gear 11 and the second gear 12 are both rotatably connected to the base 10 above.

A first locking mechanism for locking the relative positions of the handle bar 2, the front wheel support bar 3 and the base 10 when the folding child car is in the open state is arranged among the three.

In this embodiment, a specific structure of the first locking mechanism is provided, which includes a front locking groove 16 respectively provided on the handle bar 2 and the front wheel support bar 3, an unlocking member 17 movably connected to the base 10, and two front locking hooks 18 provided on the unlocking member 17 and detachably connected to the front locking grooves 16 on the handle bar 2 and the front wheel support bar 3, respectively, and when the first locking mechanism is locked, the front locking hooks 18 on the unlocking member 17 are connected to the front locking grooves 16 on the handle bar 2 and the front wheel support bar 3, so that the handle bar 2 and the front wheel support bar 3 cannot rotate. The unlocking piece 17 is provided with a pull button 22, and when unlocking is carried out, the pull button 22 is pulled to enable the unlocking piece 17 to move, so that the front lock hook 18 is separated from the front lock groove 16, and the handle rod 2 and the front wheel support rod 3 can rotate. An elastic member 21 for applying a force to the unlocking member 17 to connect the front latch hook 18 with the front latch groove 16 is disposed between the base 10 and the unlocking member 17, and the elastic member 21 in this embodiment is a tension spring.

In this embodiment, the frame includes a frame cross bar 1 having a front portion pivotally connected to the handle front wheel assembly, two rear wheel support rods 4 having an upper portion rotatably connected to the rear portion of the frame cross bar 1 and respectively located at the left and right sides of the frame cross bar 1, and two connecting rods 5 having one ends rotatably and slidably connected to the frame cross bar 1 and respectively located at the left and right sides of the frame cross bar 1, specifically, a sliding block 8 is slidably connected to the frame cross bar 1, and one ends of the two connecting rods 5 are both rotatably connected to the sliding block 8. The other ends of the two connecting rods 5 are respectively and rotatably connected with the rear wheel supporting rods 4 on the same side, and the bottoms of the two rear wheel supporting rods 4 are respectively connected with a rear wheel 7. When the folding buggy is in a folded state, the handle bar 2, the front wheel support bar 3, the connecting bar 5 and the rear wheel support bar 4 are all closed to the frame cross bar 1, specifically, the front wheel assembly 6 is closed to the rear part of the frame cross bar 1, and the rear wheel 7 is closed to the front part of the frame cross bar 1.

A second locking mechanism for locking the relative position of the folding child car when the folding child car is in an opening state is arranged between the sliding block 8 and the frame cross bar 1. The second locking mechanism may adopt a structure of the prior art, and is not specifically described since the structure of the second locking mechanism is not the focus of the present invention.

The embodiment also provides a locking structure, the handle rod 2 and the front wheel support rod 3 can be locked with the frame after the child's bike is folded, and the handle rod 2 and the front wheel support rod 3 rotate synchronously, so that the locking structure only needs to lock one of the handle rod and the front wheel support rod with the frame. The concrete structure does, back latch hook 19 has on handle bar 2 or the front wheel bracing piece 3, latch hook 19 sets up on handle bar 2 in this embodiment, has back locked groove 20 on the slider 8, when folding perambulator was in fold condition, back latch hook 19 was connected with back locked groove 20, this structure had both locked handle bar 2 and front wheel bracing piece 3's position, still locked the position of rear wheel bracing piece 4 and connecting rod 5 simultaneously to make folding perambulator whole keep at fold condition.

In another embodiment, the front wheel assembly 6 is pivotally connected to the front wheel support rod 3, so that the front wheel assembly 6 rotates 90 ° relative to the front wheel support rod 3 when the stroller is folded, and the side of the front wheel in the front wheel assembly 6 faces the frame rail 1 after being folded, thereby further reducing the volume of the stroller after being folded.

The working principle is as follows:

when the perambulator was folding, behind unblock first locking mechanical system and the second locking mechanical system, backward rotate handle bar 2 and front wheel bracing piece 3 and make it draw close to frame horizontal pole 1, rotate rear wheel bracing piece 4 forward, slider 8 slides and drives rear wheel bracing piece 4 and the connecting rod 5 of the left and right sides and draw in to frame horizontal pole 1, after all parts draw in completely, be connected back latch hook 19 on the handle bar 2 with back locked groove 20 on the slider 8, make the perambulator keep fold condition.

The folding child's bike in the above embodiment sets up original front fork spare into two poles that can the pivoted set up from top to bottom, handle bar and front wheel bracing piece promptly to when folding, two poles can rotate in step and the relative frame draws in, and rotation through handle bar and front wheel bracing piece makes handle and front wheel draw in respectively in the upper and lower both sides of frame, and folding operation is simple swift, and is small after whole car is folding, occupation space not, carries easily.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.