Folding child's vehicle

Abstract

The application discloses a folding child's car, which comprises a rear frame, a wheel connected to the bottom of the rear frame, a front frame movably connected to the rear frame, a front side rod, a rear side rod, and a folding child's car having an unfolded state and a folded state, wherein the outer end of the rear side rod is located in front of the inner end when the folding child's car is in the unfolded state and the folded state, and the rear part of the front side rod, the rear side rod and the rear frame form an avoiding space when the folding child's car is in the unfolded state. The folding child's car is designed to make the child's car fold smoothly without jamming by rotating the front side rod backward with the rear side rod, and the safety of the child is improved by setting the avoiding space.

Description

[0001] This application is a divisional application of the Chinese Invention Patent Application for Folding Children's Car with the application number 2019112190796 and the application date of December 3, 2019. TECHNICAL FIELD

[0002] The present application relates to a folding children's car, belonging to children's toys. BACKGROUND

[0003] The folding children's car is a toy driven by children, generally including a car body, wheels, a seat, etc., driven by a motor or by a child's foot pedal, and a transmission mechanism to drive the wheels to rotate. And in order to facilitate carrying and storage, it is designed as a foldable structure. The children's car usually has a sliding function. The folding children's car with sliding function is mostly of vertical structure, and there are few children's cars of sitting structure and capable of folding in the prior art. The invention patent with the application number 201811193988.2 discloses a folding children's car, which is of sitting structure and capable of folding, but it also has defects. The folding children's car in the invention patent includes a rear frame, a front frame, a front side rod and a rear side rod. The front frame is movably connected with the rear frame. The front part of the front side rod is rotatably connected with the front frame. The outer end part of the rear side rod is rotatably connected with the rear part of the front side rod, and the inner end part of the rear side rod is rotatably connected with the rear frame. When folding, the front frame is pushed backward to drive the front part of the front side rod to move backward and make the whole front side rod rotate backward, thereby driving the rear side rod to rotate. The structure setting will cause the following defects: first, when the children's car is in the unfolded state, the outer end part of the rear side rod is in front of the inner end part, and when it is in the folded state, the outer end part of the rear side rod is turned to the rear of the inner end part. Therefore, in the folding process, when the front side rod rotates backward to drive the rear side rod, the rear side rod will first give the front side rod a backward force, which will hinder the backward rotation of the front side rod, and this hindrance will disappear only when the outer end part of the rear side rod is turned to the rear of the inner end part. This results in that the folding operation of the children's car will be jammed and not smooth enough. Second, due to the limitation of the structure, in the folding process, the range of movement of the front part of the front side rod is very limited in the whole process of rotating to the rear frame, thereby affecting the movement range of the front frame, resulting in that the front-rear size of the whole car is large. SUMMARY

[0004] To solve the above problems, the purpose of the present application is to provide a folding children's car.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a folding children's car, which includes a rear frame, the bottom of which is connected with wheels;

[0006] a front frame, which is movably connected with the rear frame in front-rear direction;

[0007] The front side rod is rotatably connected with the front part of the front frame, and the rear part of the front side rod is connected with a side wheel assembly;

[0008] The rear side rod is rotatably connected with the middle front part of the front side rod at its outer end, and rotatably connected with the front frame at its inner end;

[0009] The folding child carrier has an unfolded state and a folded state, and in the unfolded state and the folded state, the outer end of the rear side rod is located in front of the inner end; in the unfolded state, the rear part of the front side rod, the rear side rod and the rear frame form an avoiding space, which is located at the rear side of the front side rod and the rear side rod, and is located at the outer side of the rear frame.

[0010] Further, the front side rod and the rear side rod are both two and symmetrically arranged on the left and right sides of the front frame and the rear frame, and the two front side rods, the two rear side rods and the rear frame form two avoiding spaces; the upper part of the rear part of the rear frame has a seat, and the two avoiding spaces are located on the left and right sides of the seat.

[0011] Further, the rear side rod is arc-shaped, and the arc-shaped part is arched towards the front.

[0012] Further, the folding child carrier further comprises a locking mechanism capable of locking the relative position between the front frame and the rear frame in the unfolded state and the folded state respectively, and an unlocking mechanism capable of unlocking the locking mechanism by operation.

[0013] Further, the locking mechanism comprises at least two locking slots formed on the rear frame, and at least one locking piece movably arranged on the front frame and detachably connected with the locking slots; in the unfolded state, the locking piece is connected with one of the locking slots, and in the folded state, the locking piece is connected with the other locking slot.

[0014] Further, the locking piece is arranged on the rear part of the front frame. Further, the unlocking mechanism is arranged on the front part of the front frame, facilitating the unlocking operation.

[0015] Further, the unlocking mechanism comprises a sliding slot arranged on the front frame, a joint slidably arranged in the sliding slot, a traction piece having one end fixedly connected with the joint and the other end fixedly connected with the locking piece, and an unlocking piece movably arranged on the front frame, the unlocking piece having an inclined surface capable of sliding the joint by sliding contact with the joint.

[0016] Further, the unlocking member has an unlocking position and a locking position, the front frame is provided with a button which is movable and has two working positions, one of the button and the unlocking member has a recess, when the button is in the first position, the other of the button and the unlocking member is misaligned with the position of the recess, the button abuts against the unlocking member to restrict the unlocking member in the locking position, when the button is in the second position, the other of the button and the unlocking member corresponds to the position of the recess, when the button is in the second position and the unlocking member is in the unlocking position, the other of the button and the unlocking member enters the recess.

[0017] Further, the moving direction of the button is perpendicular to the moving direction of the unlocking member.

[0018] Further, the front frame is inserted into the rear frame from front to back, the rear frame is slidably connected with a sliding sleeve, the inner end of the rear side rod is rotatably connected to the sliding sleeve, the rear frame is provided with a guide slot for the rotation shaft to move in, and the rotation shaft passes through the sliding sleeve to connect the front frame and the rear frame together.

[0019] Further, the front side rod and the rear side rod are both two and symmetrically arranged on the left and right sides of the front frame and the rear frame, and the two rear side rods are rotatably connected with the sliding sleeve.

[0020] Further, the front wheel assembly is connected to the front part of the rear frame, the rear wheel assembly is connected to the rear part of the rear frame, and the bottom surface of the side wheel assembly is higher than the bottom surfaces of the front wheel assembly and the rear wheel assembly.

[0021] Further, the rear side rod is arc-shaped and the arc-shaped part is arched towards the front.

[0022] Further, when the folding child stroller is in the unfolded state, the front frame is unfolded relative to the rear frame, and the rear part of the front side rod is away from the rear frame; when the folding child stroller is in the folded state, the front frame is slidably contracted relative to the rear frame, the rear end of the front side rod is close to the rear frame, and the inner end of the rear side rod slides towards the rear relative to the rear frame along with the sliding of the front frame relative to the rear frame.

[0023] By adopting the above technical scheme, the folding child stroller is designed to make the front side rod rotate towards the rear frame driven by the rear side rod when the child stroller is folded, so that the front side rod and the rear side rod are just folded on the two sides of the frame, thereby not increasing the width of the side as much as possible, and making the folding operation very smooth without jamming phenomenon, and compared with the prior art, the front frame is closer to the rear frame, and the size of the whole vehicle after folding is smaller. Meanwhile, the rear part of the front side rod, the rear side rod and the rear frame form an avoiding space, so that the child can avoid the front side rod or the rear side rod when using the child stroller, thereby avoiding collision and improving the safety of use. BRIEF DESCRIPTION OF DRAWINGS

[0024] ATTACHMENT Figure 1Fig. 1 is a schematic view of the structure of a folding baby carriage in an unfolded state according to an embodiment of the present application;

[0025] Fig. 2 is a schematic view of the structure of a folding baby carriage in a folded state according to an embodiment of the present application; Figure 2 Fig. 3 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 1 Fig. 4 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0026] Fig. 5 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 3 Fig. 6 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 1 Fig. 7 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0027] Fig. 8 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 4 Fig. 9 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 2 Fig. 10 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0028] Fig. 11 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 5 Fig. 12 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 3 Fig. 13 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0029] Fig. 14 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 6 Fig. 15 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 3 Fig. 16 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0030] Fig. 17 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 7 Fig. 18 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 1 Fig. 19 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0031] Fig. 20 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 8 Fig. 21 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 2 Fig. 22 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0032] Fig. 23 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 9 Fig. 24 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 1 Fig. 25 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0033] Fig. 26 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 10 Fig. 27 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 9 Fig. 28 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0034] Fig. 29 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 11 Fig. 30 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 10 Fig. 31 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0035] Fig. 32 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 12 Fig. 33 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application; Figure 1 Fig. 34 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0036] Fig. 35 is a schematic view of the structure of a folding baby carriage after installation of an outer shell according to an embodiment of the present application;

[0037] 1, rear frame; 11, guide slot; 12, lock slot; 13, front wheel assembly; 14, rear wheel assembly; 15, seat; 2, front frame; 21, sliding sleeve; 22, sliding slot; 23, footrest; 3, front side rod; 31, side wheel assembly; 32, handle; 4, rear side rod; 5, lock piece; 6, traction piece; 7, joint; 8, unlocking piece; 81, inclined surface; 82, protrusion; 9, button; 91, recess. DETAILED DESCRIPTION

[0038] The advantages and features of the present application will be more apparent from the following detailed description of preferred embodiments of the present application, taken in conjunction with the accompanying drawings.

[0039] Reference is made to the accompanying drawings Figure 1 to the drawings Figure 12 The folding child's vehicle in the present embodiment has an unfolded state and a folded state. The folding child's vehicle comprises a rear frame 1, a front frame 2, a front side rod 3, and a rear side rod 4.

[0040] As shown in Figs. 1 and 2, a front wheel assembly 13 is connected to the lower front portion of the rear frame 1, a rear wheel assembly 14 is connected to the lower rear portion of the rear frame 1, and a seat 15 is provided on the upper rear portion of the rear frame 1. Figure 5 Figure 6 The front frame 2 is movably connected to the rear frame 1 in the front-rear direction. Specifically, the front frame 2 and the rear frame 1 are both arranged to extend in the front-rear direction, and the front frame 2 is U-shaped with its opening facing the rear. The front frame 2 is inserted into the rear frame 1 from the front end of the rear frame 1 to the rear. A footrest 23 is connected to the front end of the front frame 2.

[0041] The front portion of the front side rod 3 is pivotally connected to the front portion of the rear frame 1, and the rear portion of the front side rod 3 is connected to a side wheel assembly 31. In the present embodiment, the bottom surface of the side wheel assembly 31 is higher than the bottom surfaces of the front wheel assembly 13 and the rear wheel assembly 14. A handle 32 is provided on the rear portion of the front side rod 3.

[0042] The outer end portion of the rear side rod 4 is pivotally connected to the front side rod 3, preferably at the middle front portion of the front side rod 3. The inner end portion of the rear side rod 4 is pivotally connected to the front frame 2. In both the unfolded state and the folded state of the folding child's vehicle, the outer end portion of the rear side rod 4 is located in front of the inner end portion.

[0043] The inner end portion of the rear side rod 4 is pivotally connected to the front frame 2 in the following manner. A sliding sleeve 21 is slidably connected to the rear frame 1, and the inner end portion of the rear side rod 4 is pivotally connected to the sliding sleeve 21. A guide slot 11 is formed in the rear frame 1 to allow the pivot shaft to move therein, and the pivot shaft passes through the sliding sleeve 21 to connect the front frame 2 and the rear frame 1 together.

[0044] In a more preferred embodiment, the rear side rod 4 is arc-shaped and arches forward. The shape of the rear side rod 4 is arranged to prevent the child from hitting the rear side rod 4 when riding the child's vehicle, thereby ensuring the safety of the child.

[0045] The front side rod 3 and the rear side rod 4 are both provided in two and symmetrically arranged on the left and right sides of the front frame 2 and the rear frame 1. The two rear side rods 4 are respectively pivotally connected to the left and right sides of the sliding sleeve 21.

[0046] The front side rod 3 and the rear side rod 4 are both provided in two and symmetrically arranged on the left and right sides of the front frame 2 and the rear frame 1. The two rear side rods 4 are respectively pivotally connected to the left and right sides of the sliding sleeve 21. ​

[0047] Folding working principle:

[0048] The folding child's vehicle is in unfolded state, as shown in the accompanying Figure 1 and the accompanying Figure 3 , the left and right front side rods 3 and the rear side rods 4 are in the shape of wings on the left and right sides of the rear frame 1. When folding is needed, the front frame 2 is pushed backward, so that the front frame 2 is gradually inserted into the rear frame 1, thus moving the inner end of the rear side rod 4 backward and rotating the rear side rod 4, the outer end of the rear side rod 4 pulls the front side rod 3 backward, so that the front side rod 3 is rotated and moved toward the rear frame 1, until the whole vehicle is completely folded, as shown in the accompanying Figure 2 and the accompanying Figure 4 .

[0049] The folding child's vehicle in the embodiment further comprises a locking mechanism capable of locking the relative position between the front frame 2 and the rear frame 1 in the unfolded state and the folded state respectively, and an unlocking mechanism for unlocking the locking mechanism by operation.

[0050] As shown in the accompanying Figure 7 and the accompanying Figure 8 , the locking mechanism has two groups and is arranged on the left and right sides of the child's vehicle respectively. Each group of the locking mechanism comprises two lock slots 12 arranged in the front-rear direction on the rear frame 1, and a lock piece 5 arranged on the front frame 2 and disengageably connected with the lock slots 12. The lock piece 5 is arranged at the rear of the front frame 2. The two lock slots 12 are arranged in the front-rear direction. In the unfolded state of the folding child's vehicle, the lock piece 5 is connected with the lock slot 12 in front, and in the folded state of the folding child's vehicle, the lock piece 5 is connected with the lock slot 12 in rear.

[0051] The unlocking mechanism is arranged at the front of the front frame 2, which is convenient for operation. As shown in the accompanying Figure 9 to the accompanying Figure 11 , the unlocking mechanism comprises a sliding slot 22 arranged on the front frame 2, a joint 7 slidingly arranged in the sliding slot 22, a pulling piece 6 having one end fixedly connected with the joint 7 and the other end fixedly connected with the lock piece 5, and an unlocking piece 8 movably arranged on the front frame 2, the unlocking piece 8 having an inclined surface 81. The unlocking piece 8 has an unlocking position and a locking position, when the unlocking piece 8 moves from the locking position to the unlocking position, the joint 7 is caused to slide in the sliding slot 22 through the sliding contact between the inclined surface 81 and the joint 7, and then the lock piece 5 is caused to move through the pulling of the pulling piece 6, so that the lock piece 5 is disengaged from the lock slot 12.

[0052] In the embodiment, the front frame 2 has a tubular structure, and the pulling piece 6 is a soft piece and is arranged inside the tubular structure. Since the locking mechanism has two groups, the pulling piece 6, the joint 7, the sliding slot 22 and the inclined surface 81 in the unlocking mechanism also have two respectively and are arranged symmetrically left and right.

[0053] In a more preferred embodiment, the front frame 2 is provided with a movable button 9, which is perpendicular to the moving direction of the unlocking member 8. The button 9 has two working positions. The button 9 has a groove 91. When the button 9 is in the first position, the unlocking member 8 is not in the position corresponding to the groove 91. When the button 9 is in the second position, the unlocking member 8 is in the position corresponding to the groove 91. When the button 9 is in the second position and the unlocking member 8 is in the unlocking position, the unlocking member 8 will enter the groove 91. In this embodiment, the unlocking member 8 has a protrusion 82. When the button 9 is in the first position, the protrusion 82 is not in the position corresponding to the groove 91. When the button 9 is in the second position, the protrusion 82 is in the position corresponding to the groove 91. When the button 9 is in the second position and the unlocking member 8 is in the unlocking position, the protrusion 82 will enter the groove 91. In another similar embodiment, the groove is provided on the unlocking member 8. When the button 9 is in the first position, the button 9 is not in the position corresponding to the groove. When the button 9 is in the second position, the button 9 is in the position corresponding to the groove. When the button 9 is in the second position and the unlocking member 8 is in the unlocking position, the button 9 will enter the groove. Due to the provision of the button 9, when the locking mechanism needs to be unlocked, the button 9 must be pressed first, and then the unlocking member 8 can be moved, thereby preventing misoperation.

[0054] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A folding children's stroller, characterized in that: It includes: The rear frame (1) has wheels attached to its bottom; The front frame (2) is movably connected to the rear frame (1); The front side rod (3) is rotatably connected to the front of the rear frame (1), and the rear of the front side rod (3) is connected to the side wheel assembly (31). The rear side rod (4) has its outer end rotatably connected to the front middle part of the front side rod (3), and the inner end of the rear side rod (4) is rotatably connected to the front frame (2). The rear frame (1) is slidably connected to a sliding sleeve (21). When the front frame (2) moves back and forth relative to the rear frame (1), the front frame (2) drives the sliding sleeve (21) to slide relative to the rear frame (1). The inner end of the rear side rod (4) is rotatably connected to the sliding sleeve (21) through a rotating shaft. The folding stroller has an unfolded state and a folded state. When it is in the unfolded state and the folded state, the outer end of the rear rod (4) is located in front of the inner end. When the folding stroller is in the unfolded state, a clearance space is formed between the rear of the front side rod (3), the rear side rod (4), and the rear frame (1). The clearance space is located on the rear side of the front side rod (3) and the rear side rod (4), and the clearance space is located on the outside of the rear frame (1).

2. The folding stroller according to claim 1, characterized in that: There are two front side rods (3) and two rear side rods (4), which are located on the left and right sides of the front frame (2) and the rear frame (1). The two front side rods (3) and the two rear side rods (4) form two clearance spaces with the rear frame (1). There is a seat (15) above the rear part of the rear frame, and the two clearance spaces are located on the left and right sides of the seat (15).

3. The folding stroller according to claim 1, characterized in that: The rear rod (4) is arc-shaped and arches forward.

4. The folding stroller according to claim 1, characterized in that: The folding stroller also includes a locking mechanism capable of locking the relative positions between the front frame (2) and the rear frame (1) in the unfolded and folded states respectively, and an unlocking mechanism that unlocks the locking mechanism by operating it. The locking mechanism includes at least two locking slots (12) formed on the rear frame (1) and at least one locking member (5) movably disposed on the front frame (2) and detachably connected to the locking slots (12). When the folding stroller is in the unfolded state, the locking member (5) is connected to one of the locking slots (12), and when the folding stroller is in the folded state, the locking member (5) is connected to the other locking slot (12). The locking member (5) is disposed at the rear of the front frame (2), and the unlocking mechanism is disposed at the front of the front frame (2).

5. The folding stroller according to claim 4, characterized in that: The unlocking mechanism includes a groove (22) disposed on the front frame (2), a connector (7) slidably disposed in the groove (22), a traction member (6) with one end fixedly connected to the connector (7) and the other end fixedly connected to the lock (5), and an unlocking member (8) movably disposed on the front frame (2). The unlocking member (8) has an inclined surface (81) that allows the connector (7) to slide by sliding contact with the connector (7).

6. The folding stroller according to claim 5, characterized in that: The unlocking component (8) has an unlocking position and a locking position. The front frame (2) is provided with a movable button (9) having two working positions. The moving direction of the button (9) is perpendicular to that of the unlocking component (8). One of the button (9) and the unlocking component (8) has a groove (91). When the button (9) is in the first position, the other of the button (9) and the unlocking component (8) is offset from the groove (91). The button (9) abuts against the unlocking component (8) so that the unlocking component (8) is restricted to the locking position. When the button (9) is in the second position, the other of the button (9) and the unlocking component (8) corresponds to the groove (91). When the button (9) is in the second position and the unlocking component (8) is in the unlocking position, the other of the button (9) and the unlocking component (8) enters the groove (91).

7. The folding stroller according to claim 1, characterized in that: The front frame (2) is inserted into the rear frame (1) from front to back. The rear frame (1) has a guide groove (11) for the pivot to move therein. The pivot passes through the sliding sleeve (21) to connect the front frame (2) and the rear frame (1) together.

8. The folding stroller according to claim 7, characterized in that: There are two front side rods (3) and two rear side rods (4), which are symmetrically arranged on the left and right sides of the front frame (2) and the rear frame (1). Both rear side rods (4) are rotatably connected to the sliding sleeve (21).

9. The folding stroller according to claim 1, characterized in that: The front wheel assembly (13) is connected to the lower front part of the rear frame (1), and the rear wheel assembly (14) is connected to the lower rear part of the rear frame (1). The bottom surface of the side wheel assembly (31) is higher than the bottom surfaces of the front wheel assembly (13) and the rear wheel assembly (14).

10. The folding stroller according to claim 1, characterized in that: When the folding stroller is in the unfolded state, the front frame (2) unfolds relative to the rear frame (1), and the rear part of the front side rod (3) moves away from the rear frame (1); when the folding stroller is in the folded state, the front frame (2) and the rear frame (1) slide and retract, the rear end of the front side rod (3) moves closer to the rear frame (1), and the inner end of the rear side rod (4) slides backward relative to the rear frame (1) as the front frame (2) slides relative to the rear frame (1).

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