Double-folding baby stroller

Abstract

The utility model discloses a baby two-fold stroller which comprises a rear wheel frame, a front wheel frame, an armrest frame, a seat frame assembly and a folding assembly, the front wheel frame is arranged at the front end of the rear wheel frame, the armrest frame is arranged at the upper end of the rear wheel frame, the seat frame assembly is arranged between the rear wheel frame and the front wheel frame, and the folding assembly is arranged between the front wheel frame and the rear wheel frame. The folding assembly is arranged between the rear wheel frame and the front wheel frame and between the rear wheel frame and the armrest frame. The folding assembly is arranged, under the interaction of the inner joint, the middle joint, the outer joint and other structures, the rear wheel frame, the front wheel frame, the armrest frame and other structures are folded at a time, the problems that steps are tedious and the rigidity is insufficient in the unfolding state are effectively solved, the structure is stable, and use is convenient. Under the interaction of structures such as a clamping groove, a clamping seat and an inserting block, the child armrest plate can be quickly disassembled and assembled, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a baby carriage technical field especially to a baby two-folded stroller. BACKGROUND

[0002] Baby stroller as the important tool of daily travel of baby, its portability and convenient operation have been the key direction of industry technology improvement. The two-folded baby stroller of common in the market although realizes the volume reduction to a certain extent through folding structure, but still has technical defects in actual use:

[0003] The folding operation of the existing two-folded stroller generally has the problem of complicated steps. The user usually needs to unlock the locking mechanism of multiple connecting points of the frame, simultaneously carries out the handle folding and the stroller body folding action, and the whole process needs the coordinated operation of both hands and complicated steps, which is extremely inconvenient for the user holding the baby or carrying articles. Especially in the emergency storage scene, the existing technology is difficult to realize the quick one-hand operation, and the fixed handrail tray structure limits the use scene, cannot be disassembled and cleaned or temporarily expanded to load space according to the demand, and usually needs to align multiple buckles when installing, which affects the use efficiency.

[0004] Although part of the improved product tries to optimize the operation by increasing the folding joint or simplifying the locking mechanism, but often causes the decline of structural stability or insufficient rigidity in the unfolded state. How to realize the real one-key folding and improve the functional expandability under the premise of ensuring safety is still a technical problem to be solved in the field. SUMMARY

[0005] The utility model discloses to the above-mentioned folding operation of the existing two-folded stroller generally has the problem of complicated steps, and the fixed handrail tray structure limits the use scene.

[0006] In order to solve the above problem, the utility model provides a baby two-folded stroller, including

[0007] The rear wheel frame, the front wheel frame and the handrail frame are arranged on the upper end of the rear wheel frame.

[0008] The seat frame assembly is arranged between the rear wheel frame and the front wheel frame.

[0009] The folding assembly is arranged between the rear wheel frame, the front wheel frame and the handrail frame.

[0010] The folding assembly comprises an inner joint, one end of which is fixedly sleeved on the end of the handrail frame, one side of the inner joint is connected with an outer joint through a pin shaft, an intermediate joint is arranged between the outer joint and the inner joint, one end of the intermediate joint is fixed on the end of the front wheel frame, and the other end of the intermediate joint is connected with the rear wheel frame through a pin shaft.

[0011] As a further technical solution, a gear groove A is arranged on one side surface of the inner joint, a top rod is arranged on the one side surface of the inner joint, an inner gear is movably sleeved on the top rod, the inner gear is in meshing connection with the gear groove A, a spring A is arranged between the inner gear and the inner joint, a circular ring is movably embedded in one side of the inner gear, a top block is arranged on one side of the inner gear, an embedding groove is formed on one side surface of the circular ring, the top block is movably embedded in the embedding groove, the intermediate joint is movably sleeved on the top rod, a gear groove B is arranged on one side surface of the intermediate joint, the gear groove B is in meshing connection with the inner gear, a key groove is formed on the intermediate joint, a fixing groove is arranged on one side surface of the outer joint, a fixing block is movably embedded in the fixing groove, a spring B is arranged between the fixing block and the outer joint, a protruding block is arranged on the fixing block, the protruding block penetrates through the key groove, and a top groove is arranged on one side surface of the protruding block.

[0012] As a further technical solution, a limiting groove is arranged on one side surface of the outer joint, and a limiting block is arranged on the other side surface of the intermediate joint.

[0013] As a further technical solution, a fixing hole is arranged on the circular ring, and a steel rope is movably embedded in the fixing hole.

[0014] As a further technical solution, a positioning groove is formed on the inner gear, and a positioning block is arranged on the circular ring.

[0015] As a further technical solution, the seat frame assembly comprises a seat frame, the seat frame is connected with the front wheel frame through a pin shaft, a linkage iron piece A is connected with the seat frame through a pin shaft, the linkage iron piece A is connected with the rear wheel frame through a pin shaft, a linkage iron piece B is connected with the seat frame through a pin shaft, and the linkage iron piece B is connected with the inner joint through a pin shaft.

[0016] As a further technical scheme, the outer joint end is provided with a child handrail plate, a clamping groove is formed in the end of the child handrail plate, a circular hole is formed in the surface of one side of the clamping groove, a clamping seat is arranged on the outer joint, the clamping groove is movably clamped on the clamping seat, a cavity is arranged in the surface of the outer joint, a sub-plate is connected to one side of the outer joint, a through hole is formed in the sub-plate, an insertion block is arranged in the cavity, the insertion block is movably inserted into the circular hole through the clamping seat, an inclined slot is formed in the insertion block, a button is movably embedded in the inclined slot, the button passes through the through hole, and a spring C is arranged between the cavity and the insertion block.

[0017] The working principle and beneficial effects of the utility model are as follows:

[0018] 1、The folding assembly is arranged in the utility model, through the interaction of the inner joint, the intermediate joint and the outer joint and other structures, the rear wheel frame, the front wheel frame and the handrail frame and other structures are realized one-time folding, and the problems of complicated steps and insufficient rigidity in the unfolded state are effectively avoided, and the structure is stable.

[0019] 2、Through the interaction of the clamping groove, the clamping seat and the insertion block and other structures, the child handrail plate can be quickly disassembled and installed, and use is facilitated. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor of the ordinary skilled in the art.

[0021] Figure 1 It is a perspective view of a two-fold baby stroller provided in the embodiment;

[0022] Figure 2 It is a partial structure exploded view of a two-fold baby stroller provided in the embodiment;

[0023] Figure 3 It is a perspective view of a two-fold baby stroller provided in the embodiment; Figure 2

[0024] It is a partial structure exploded view of a two-fold baby stroller provided in the embodiment; Figure 4

[0025] It is a partial structure exploded view of a two-fold baby stroller provided in the embodiment; Figure 5

[0026] It is a partial structure exploded view of a two-fold baby stroller provided in the embodiment; Figure 6 ​

[0027] The diagram shows: 1. Rear wheel frame; 2. Front wheel frame; 3. Handrail frame; 4. Folding assembly; 4-1. Inner joint; 4-2. Outer joint; 4-3. Intermediate joint; 4-4. Gear groove A; 4-5. Top rod; 4-6. Inner gear; 4-7. Spring A; 4-8. Ring; 4-9. Top block; 4-10. Groove; 4-11. Gear groove B; 4-12. Keyway; 4-13. Fixing groove; 4-14. Fixing block; 4-15. Spring B; 4-16. Protrusion. 4-17. Top groove; 4-18. Limiting groove; 4-19. Limiting block; 4-20. Fixing hole; 4-21. Steel rope; 4-22. Positioning groove; 4-23. Positioning block; 5. Seat frame assembly; 5-1. Seat frame; 5-2. Linkage iron plate A; 5-3. Linkage iron plate B; 6. Child armrest board; 7. Slot; 8. Circular hole; 9. Card seat; 10. Cavity; 11. Sub-plate; 12. Through hole; 13. Insert block; 14. Inclined groove; 15. Button; 16. Spring C. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] Examples, as per the appendix to the instruction manual Figures 1-6 It can be seen that this solution provides a two-fold baby stroller, including...

[0031] The rear wheel frame 1, the front wheel frame 2, and the handrail frame 3 are provided. The front wheel frame 2 is located at the front end of the rear wheel frame 1, and the handrail frame 3 is located at the upper end of the rear wheel frame 1.

[0032] Seat frame assembly 5, wherein the seat frame assembly 5 is disposed between the rear wheel frame 1 and the front wheel frame 2;

[0033] Folding assembly 4, which is disposed between the rear wheel frame 1, the front wheel frame 2, and the handrail frame 3;

[0034] The folding assembly 4 comprises an inner joint 4-1 fixedly sleeved at one end of the handrail frame 3, an outer joint 4-2 connected to one side of the inner joint 4-1 through a pin shaft, an intermediate joint 4-3 arranged between the inner joint 4-1 and the outer joint 4-2, the intermediate joint 4-3 being fixed at one end of the front wheel frame 2 and connected to the rear wheel frame 1 through a pin shaft at the other end, a gear groove A4-4 arranged in one side surface of the inner joint 4-1, a top rod 4-5 arranged on one side surface of the inner joint 4-1, an inner gear 4-6 movably sleeved on the top rod 4-5, the inner gear 4-6 being engaged with the gear groove A4-4, a spring A4-7 arranged between the inner gear 4-6 and the inner joint 4-1, a circular ring 4-8 movably embedded in one side of the inner gear 4-6, a top block 4-9 arranged in one side of the inner gear 4-6, an embedding groove 4-10 formed in one side surface of the circular ring 4-8, the top block 4-9 being movably embedded in the embedding groove 4-10, the intermediate joint 4-3 being movably sleeved on the top rod 4-5, a gear groove B4-11 arranged in one side surface of the intermediate joint 4-3, the gear groove B4-11 being engaged with the inner gear 4-6, a key groove being formed in the intermediate joint 4-3, a fixing groove 4-13 arranged in one side surface of the outer joint 4-2, a fixing block 4-14 movably embedded in the fixing groove 4-13, a spring B4-15 arranged between the fixing block 4-14 and the outer joint 4-2, a protruding block 4-16 arranged on the fixing block 4-14, the protruding block 4-16 penetrating through the key groove, a top groove 4-17 arranged in one side surface of the protruding block 4-16, an end of the top block 4-9 being movably embedded in the top groove 4-17, a limiting groove 4-18 arranged in one side surface of the outer joint 4-2, a limiting block 4-19 arranged on the other side surface of the intermediate joint 4-3, the limiting block 4-19 being movably embedded in the limiting groove 4-18, a fixing hole 4-20 arranged on the circular ring 4-8, a steel rope 4-21 fixedly embedded in the fixing hole 4-20, a positioning groove 4-22 formed in the inner gear 4-6, and a positioning block 4-23 arranged on the circular ring 4-8, the positioning block 4-23 being matched with the positioning groove 4-22.

[0035] Further, the seat frame assembly 5 comprises a seat frame 5-1 connected to the front wheel frame 2 through a pin shaft, a linkage iron sheet A5-2 connected to the seat frame 5-1 through a pin shaft, the linkage iron sheet A5-2 being connected to the rear wheel frame 1 through a pin shaft, a linkage iron sheet B5-3 connected to the seat frame 5-1 through a pin shaft, and the linkage iron sheet B5-3 being connected to the inner joint 4-1 through a pin shaft.

[0036] Further, the outer joint 4-2 end is provided with a child handrail plate 6, the child handrail plate 6 end is provided with a clamping groove 7, one side surface of the clamping groove 7 is provided with a circular hole 8, the outer joint 4-2 end is provided with a clamping seat 9, the clamping groove 7 is movably clamped on the clamping seat 9, the outer joint 4-2 one side surface is provided with a cavity 10, the outer joint 4-2 one side is connected with a sub plate 11, the sub plate 11 is provided with a through hole 12, the cavity 10 is provided with an insertion block 13, the insertion block 13 is movably inserted in the circular hole 8 through the clamping seat 9, the insertion block 13 is provided with an inclined slot 14, the inclined slot 14 is movably embedded with a button 15, the button 15 passes through the through hole 12, and the cavity 10 and the insertion block 13 are provided with a spring C 16.

[0037] Wherein, it needs to be pointed out that in the specific implementation process:

[0038] By pulling the steel wire 4-21, the circular ring 4-8 is driven to rotate in the internal gear 4-6, and the internal gear 4-6 is transversely moved to the inner joint 4-1 direction through the cooperation of the embedded slot 4-10 in the circular ring 4-8 and the top block 4-9, the internal gear 4-6 is transversely moved to the inner joint 4-1 direction, the internal gear 4-6 is disengaged from the gear groove B 4-11, so that the inner joint 4-1 drives the handrail frame 3 to be folded, when the inner joint 4-1 rotates, the end of the jacking rod 4-5 slides in the top groove 4-17, drives the fixed block 4-14 to transversely move to the outer joint 4-2 direction, makes the protruding block 4-16 disengage from the key groove, so that the seat frame 5-1, the front wheel frame 2, the rear wheel frame 1 and the child handrail plate 6 are simultaneously folded, and the folding action is completed;

[0039] When it is needed to be unfolded, the frame is unfolded, the spring A 4-7 applies force to the internal gear 4-6, the internal gear 4-6 is re-engaged with the gear groove B 4-11, the spring B 4-15 applies force to the fixed block 4-14, the protruding block 4-16 is re-inserted into the key groove, and thus fixed;

[0040] When the child handrail plate 6 needs to be disassembled, press the button 15, the button 15 slides in the inclined slot 14, drives the insertion block 13 to transversely move to the outer joint 4-2 direction, the insertion block 13 leaves the through hole 12, then the child handrail plate 6 can be taken off, when the child handrail plate 6 is installed, the clamping groove 7 is clamped on the clamping seat 9, the spring C 16 applies force to the insertion block 13, the insertion block 13 is inserted into the through hole 12.

[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied in other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the present application.

Claims

1. A baby stroller comprising, Comprising The rear wheel frame (1), the front wheel frame (2) and the handrail frame (3), the front wheel frame (2) is arranged in the front end of the rear wheel frame (1), the handrail frame (3) is arranged in the upper end of the rear wheel frame (1); The seat frame assembly (5) is arranged between the rear wheel frame (1) and the front wheel frame (2); The folding assembly (4) is arranged between the rear wheel frame (1) and the front wheel frame (2) and the handrail frame (3); The folding assembly (4) comprises an inner joint (4-1), one end of the inner joint (4-1) is fixedly sleeved on the end of the handrail frame (3), one side of the inner joint (4-1) is connected with an outer joint (4-2) through a pin shaft, an intermediate joint (4-3) is arranged between the inner joint (4-1) and the outer joint (4-2), one end of the intermediate joint (4-3) is fixed on the end of the front wheel frame (2), and the other end of the intermediate joint (4-3) is connected with the rear wheel frame (1) through a pin shaft.

2. A baby stroller according to claim 1, characterized in that A gear groove A (4-4) is arranged in one side surface of the inner joint (4-1), a top rod (4-5) is arranged on one side surface of the inner joint (4-1), an inner gear (4-6) is movably sleeved on the top rod (4-5), the inner gear (4-6) is meshed with the gear groove A (4-4), a spring A (4-7) is arranged between the inner gear (4-6) and the inner joint (4-1), a circular ring (4-8) is movably embedded in one side of the inner gear (4-6), a top block (4-9) is arranged in one side of the inner gear (4-6), an embedding groove (4-10) is formed in one side surface of the circular ring (4-8), the top block (4-9) is movably embedded in the embedding groove (4-10), the intermediate joint (4-3) is movably sleeved on the top rod (4-5), a gear groove B (4-11) is arranged in one side surface of the intermediate joint (4-3), the gear groove B (4-11) is meshed with the inner gear (4-6), a key groove (4-12) is formed on the intermediate joint (4-3), a fixing groove (4-13) is arranged in one side surface of the outer joint (4-2), a fixing block (4-14) is movably embedded in the fixing groove (4-13), a spring B (4-15) is arranged between the fixing block (4-14) and the outer joint (4-2), a protruding block (4-16) is arranged on the fixing block (4-14), the protruding block (4-16) passes through the key groove (4-12), a top groove (4-17) is arranged in one side surface of the protruding block (4-16), and the end of the top block (4-9) is movably embedded in the top groove (4-17).

3. A baby stroller according to claim 2, wherein, A limiting groove (4-18) is arranged in one side surface of the outer joint (4-2), and a limiting block (4-19) is arranged on the other side surface of the intermediate joint (4-3). The limiting block (4-19) is movably embedded in the limiting groove (4-18).

4. The baby stroller of claim 2, wherein, The circular ring (4-8) is provided with a fixing hole (4-20), and a steel rope (4-21) is fixedly embedded in the fixing hole (4-20).

5. The baby stroller of claim 2, wherein, The inner gear (4-6) is provided with a positioning groove (4-22), and the circular ring (4-8) is provided with a positioning block (4-23) which is matched with the positioning groove (4-22).

6. The infant stroller of claim 1, wherein, The seat frame assembly (5) comprises a seat frame (5-1) which is connected with the front wheel frame (2) through a pin shaft, the seat frame (5-1) is connected with a linkage iron sheet A (5-2) through a pin shaft, the linkage iron sheet A (5-2) is connected with the rear wheel frame (1) through a pin shaft, the seat frame (5-1) is connected with a linkage iron sheet B (5-3) through a pin shaft, and the linkage iron sheet B (5-3) is connected with the inner joint (4-1) through a pin shaft.

7. The infant stroller of claim 1, wherein, The outer joint (4-2) is provided with a child handrail plate (6) at the end, the child handrail plate (6) is provided with a clamping groove (7) at the end, the clamping groove (7) is provided with a circular hole (8) on one side surface, the outer joint (4-2) is provided with a clamping seat (9) at the end, the clamping groove (7) is movably clamped on the clamping seat (9), the outer joint (4-2) is provided with a cavity (10) in one side surface, the outer joint (4-2) is connected with a secondary plate (11) on one side, the secondary plate (11) is provided with a through hole (12), the cavity (10) is provided with an insertion block (13), the insertion block (13) is movably inserted into the circular hole (8) through the clamping seat (9), the insertion block (13) is provided with an inclined groove (14), the inclined groove (14) is movably embedded with a button (15), the button (15) passes through the through hole (12), and the cavity (10) and the insertion block (13) are provided with a spring C (16).

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