Baby walker frame and baby walker

Abstract

The utility model discloses a baby walker frame and a baby walker, the baby walker frame comprises a front triangle, a rear triangle and a five-way pipe, and a straight pipe end of the front triangle is connected with a frame connecting pipe of the rear triangle. A first pipe of the five-way pipe is connected with a mechanism connecting pipe of the rear triangle, a second pipe of the five-way pipe is connected with the front triangle, and a stable triangular structure is formed by the five-way pipe, the rear triangle and the front triangle. A head tube of the front triangle is connected with a front mechanism, a saddle component connecting tube of the rear triangle is connected with a saddle component, a component connecting rod of the rear triangle is connected with a rear mechanism, and a driving component fixing tube of the five-way tube is connected with a driving component, so that the baby walker is formed. According to the baby walker, the five-way pipe and the driving component connected with the five-way pipe in the baby walker frame are disassembled and assembled, so that the baby walker and the bicycle can be switched, and the baby walker has multiple functions.

Description

Technical Field

[0001] This utility model relates to a bicycle frame and a bicycle, and more particularly to a toddler bicycle frame and a toddler bicycle. Background Technology

[0002] Traditional baby walkers and bicycles only have a single function. A family needs to buy two sets of equipment to prepare a baby walker for the preschool stage and a bicycle for the childhood stage, which does not conform to the current social trend of families to increase income and save money.

[0003] The existing technology can be found in utility model patent publication number CN206012821U, which discloses a product that can convert between a baby walker and a bicycle. However, the frame, which is the core of the device, lacks a stable structure. The frame, consisting of the main connecting parts and the first connecting tube, is only fixed in one place, which poses a risk of loosening and causing the frame to disintegrate. Therefore, there is an urgent need for a baby walker frame and baby walker with high stability. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a toddler frame and a toddler walker.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: a toddler stroller frame, including a front triangle, a rear triangle, and a bottom bracket tube.

[0006] One end of the front triangle is a straight pipe, which bends forward and extends into an inclined pipe, with a head pipe at the end of the inclined pipe.

[0007] The rear triangle includes a hollow frame connecting tube, a mechanism connecting tube located on the lower side of the frame connecting tube, a component connecting tube on the upper side, and component connecting rods fixed on both sides.

[0008] The five-way pipe is equipped with a No. 1 pipe and a No. 2 pipe arranged in a "V" shape, and a drive component fixing pipe is installed at the intersection of the No. 1 pipe and the No. 2 pipe.

[0009] The front triangle is connected to the rear triangle; the first pipe of the five-way connector is connected to the connecting pipe of the rear triangle, and the second pipe of the five-way connector is connected to the straight pipe part of the front triangle to form a stable inverted triangle shape.

[0010] Furthermore, the front triangle has a front frame mounting hole at the end of the straight tube, and the rear triangle has a through rear frame mounting hole at the junction of the frame connecting tube and the component connecting rod. The front triangle and the rear triangle are fixed together by bolts and nuts assembled through the front frame mounting hole and the rear frame mounting hole.

[0011] Furthermore, the No. 1 pipe of the five-way pipe is provided with a rear mechanism fixing groove, and the mechanism connecting pipe of the rear triangle is provided with a V-shaped mechanism fixing hole that matches the rear mechanism fixing groove. The No. 1 pipe and the mechanism connecting pipe are fixed by bolts and nuts assembled together by the V-shaped mechanism fixing hole and the rear mechanism fixing groove.

[0012] Furthermore, the second pipe of the five-way pipe is equipped with a front mechanism fixing head, and the bottom of the straight pipe of the front triangle is equipped with a V-shaped mechanism fixing groove that matches the front mechanism fixing head. The second pipe and the front triangle are fixed by the cooperation of the front mechanism fixing head and the V-shaped mechanism fixing groove.

[0013] Furthermore, a baby walker equipped with a baby walker frame.

[0014] Furthermore, the front triangle of the toddler's frame is connected to the front mechanism; the two connecting rods of the rear triangle are connected to the rear mechanism; the connecting tube of the rear triangle is connected to the seat component; and the driving component fixing tube of the bottom bracket is connected to the driving component.

[0015] Furthermore, the front mechanism includes a fork assembly, handlebars, and a front wheel. The fork assembly is connected to the handlebars via a fork bushing located inside the head tube, and the fork is connected to the front wheel via a front hub.

[0016] Furthermore, the drive components include a sprocket, a chain, a crank, and a pedal. The crank is connected to the drive component fixing tube of the bottom bracket via the bottom bracket. The sprocket is fixed to the crank, the chain is connected to the sprocket, and the pedal is connected to the crank.

[0017] Furthermore, the rear mechanism includes a rear wheel, which is connected to a component connecting rod via a rear hub. The rear wheel is equipped with a freewheel, which is connected to a chain.

[0018] This utility model provides a toddler stroller frame and a toddler stroller. The bottom bracket of the stroller frame, through its triangular stabilizing structure formed with the front and rear triangles, reduces the risk of frame disintegration due to loose connections between the front and rear triangles, significantly improving the stability of the entire device. The detachable bottom bracket and the drive component fixed to it allow the device to be converted into a toddler stroller and a bicycle, providing multi-purpose functionality and reducing household purchase costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the bicycle according to the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure of the walker of this utility model.

[0021] Figure 3 This is a schematic diagram of the overall structure of the toddler stroller frame of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the posterior triangle.

[0023] Figure 5 This is a schematic diagram of the front triangle structure.

[0024] Figure 6 This is a schematic diagram of a five-way pipe.

[0025] In the diagram: 1. Front triangle; 2. Rear triangle; 3. Bottom bracket; 4. Front mechanism; 5. Rear mechanism; 6. Drive component; 7. Seat component; 8. V-shaped mechanism fixing hole; 9. Rear frame fixing hole; 10. Front frame fixing hole; 11. Head tube; 12. V-shaped mechanism fixing groove; 21. Frame connecting tube; 22. Mechanism connecting tube; 23. Component connecting tube; 24. Component connecting rod; 31. Drive component fixing tube; 32. Tube No. 1; 33. Tube No. 2; 34. Rear mechanism fixing groove; 35. Front mechanism fixing head. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Example 1:

[0028] This embodiment discloses a toddler stroller frame, such as... Figure 3 The toddler stroller frame shown includes a front triangle 1, a rear triangle 2, and a bottom bracket 3, wherein:

[0029] like Figure 5 As shown, the front triangle 1 has a front frame fixing hole 10 at the end of the straight tube, a V-shaped mechanism fixing groove at the bottom of the straight tube, and a bend extending the other end of the straight tube into an inclined tube. The head tube 11 is welded to the end of the inclined tube. The head tube 11 is a hollow tubular structure used for the installation and fixing of the front mechanism 4.

[0030] like Figure 4 As shown, the frame connecting tube 21 of the rear triangle 2 is a hollow structure. The inner end of the frame connecting tube 21 is provided with a mechanism connecting tube 22 and a component connecting tube 23. The opening of the mechanism connecting tube 22 faces downward and is provided with a V-shaped mechanism fixing hole 8. The opening of the component connecting tube 23 faces upward and is provided with diagonal braces between the component connecting tube 23 and the frame connecting tube 21 to enhance the stability of the structure. Component connecting rods 24 are provided on both sides of the frame connecting tube 21. A through rear frame fixing hole 10 is provided at the connection between the component connecting rods 24 and the frame connecting tube 21.

[0031] like Figure 6As shown, the first pipe 32 and the second pipe 33 of the five-way pipe 3 are arranged in a "V" shape. The drive component fixing pipe 31 is located at the intersection of the first pipe 32 and the second pipe 33, that is, the bottom end of the "V" shape. The first pipe 32 is provided with a rear mechanism fixing groove 34 that matches the V-shaped mechanism fixing hole 8, and the second pipe 33 is provided with a front mechanism fixing head 35 that matches the V-shaped mechanism fixing groove 12.

[0032] The straight end of the front triangle 1 is inserted into the frame connecting tube 21 of the rear triangle 2, and bolts and nuts are installed together through the front frame fixing hole 10 and the rear frame fixing hole 9 to form the frame structure. The rear mechanism fixing groove 34 of the first tube 32 and the V-shaped mechanism fixing hole 8 of the mechanism connecting tube 22 are installed together with bolts and nuts to fix the connection between the bottom bracket tube 3 and the rear triangle 2. The front mechanism fixing head 35 of the second tube 33 is inserted into the V-shaped mechanism fixing groove 12 of the front triangle 1 and bolts are installed to fix it, thereby fixing the connection between the bottom bracket tube and the front triangle 1. The bottom bracket tube 3, the straight end of the front triangle 1, and the frame connecting tube 21 of the rear triangle 2 form a stable inverted triangle structure. The installation of the bottom bracket tube 3 increases the frame structure from a single fixing point to three fixing points, avoiding the risk of frame disintegration due to loose bolts and nuts at the connection points of the front triangle 1 and the rear triangle 2, and significantly improving the stability of the entire frame.

[0033] Example 2:

[0034] This embodiment discloses a baby walker that uses the frame of the baby walker in Embodiment 1. For example... Figure 1 As shown, the baby walker based on the frame has a front mechanism 4 connected to the front end via the head tube 11 of the front triangle 1; a rear mechanism 5 connected to the rear end via the component connecting rod 24 of the rear triangle 2; a drive component 6 connected to the middle via the drive component fixing tube 31 of the five-way tube 3; and a seat component 7 connected to the middle via the component connecting tube 23 of the rear triangle 2.

[0035] Specifically, the front mechanism 4 includes a front fork assembly, handlebars, and a front wheel. The manifold portion of the front fork assembly is inserted into the head tube 11 of the front mechanism 1. The handlebars located at the upper end of the head tube 11 are fixedly mounted to the manifold portion of the front fork assembly. The front fork portion of the front fork assembly is connected to the front wheel via the front hub. The user controls the direction of the bicycle by controlling the handlebars to drive the connected front fork assembly and front wheel.

[0036] The bottom bracket 3 has a fixed tube 31 for its drive mechanism, on which a bottom bracket is mounted. Cranks are mounted on both sides of the bottom bracket, and pedals are connected to both cranks. A sprocket is fixed to the right crank, and the sprocket is connected to a chain. The two connecting rods 24 of the rear triangle 2 are connected to the rear wheel via the rear hub. The rear wheel has a freewheel, which is connected to the chain. The sprocket of the drive mechanism 6 and the freewheel of the rear mechanism 5 are both connected to the chain, forming a chain drive mechanism. The user drives the cranks to rotate, which in turn drives the sprocket and freewheel, thereby driving the rear wheel to provide power to the bicycle.

[0037] The rear wheel mechanism tube 2 has a component connecting tube 23 on which the seat component 7 is installed.

[0038] The above constitutes the baby walker in the bicycle functional state of this utility model.

[0039] like Figure 2 As shown, based on the toddler bike in its bicycle function state, remove the bolts and nuts fitted to the V-shaped mechanism fixing hole 8 and the rear mechanism fixing slot 34, and the bolts fitted to the V-shaped mechanism fixing slot 12 and the front mechanism fixing head 35, thereby removing the bottom bracket tube 3 and the drive component 6 fixed thereto. Note that the chain connected to the freewheel on the rear wheel must also be removed. At this time, adjust the fixing method of the rear triangle 2 of the frame structure, inverting it and fixing it to the front triangle 2, that is, the opening of the mechanism connecting tube 22 faces upward and the opening of the component connecting rod 23 faces downward. The component connecting tube 23 of the rear triangle 2 and the diagonal brace of the frame connecting tube 21 replace the bottom bracket tube 3 to provide a certain degree of stability. The seat component 7 is installed at the mechanism connecting tube 22, and the other structures remain the same.

[0040] It should be noted that the connection point between the rear triangle 2 and the rear wheel is the position of the round hole in the triangular connecting mechanism at the tail of the component connecting rod 24. In bicycle mode, the round hole is located on the lower side of the frame structure; in walker mode, the round hole is located on the upper side of the frame structure. By changing the fixing method of the rear triangle 2, the overall height and center position of the frame structure can be adjusted.

[0041] The above constitutes the walker in the functional state of the present invention.

[0042] In summary, the bottom bracket of this invention is detachable, enabling conversion between a baby walker and a bicycle, thus providing multi-functionality. Furthermore, the bottom bracket and frame structure form an inverted triangle with multiple fixing points, reducing the risk of frame disintegration due to accidental bolt loosening and significantly improving the stability of the device. The connection method of the front and rear triangles allows for adjustment of the device's center of gravity. In baby walker mode, the center of gravity is lower, reducing the risk of tripping and making it more suitable for toddlers learning to walk; in bicycle mode, the center of gravity is slightly higher, matching the child's body size and providing good practicality. This design solves the problems of traditional baby walkers or bicycles being single-function and structurally unstable, achieving multi-functionality and better meeting the needs of families.

[0043] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A toddler stroller frame, characterized in that, include: Front triangle (1), rear triangle (2) and bottom bracket (3); One end of the front triangle (1) is a straight tube, which bends forward and extends into an inclined tube, and a head tube (11) is provided at the end of the inclined tube. The rear triangle (2) includes a hollow frame connecting tube (21), a mechanism connecting tube (22) located on the lower side of the frame connecting tube (21), a component connecting tube (23) on the upper side, and component connecting rods (24) fixed on both sides. The five-way pipe (3) is provided with a first pipe (32) and a second pipe (33) arranged in a "V" shape. A drive component fixing pipe (31) is provided at the intersection of the first pipe (32) and the second pipe (33). The front triangle (1) is connected to the rear triangle (2); the first pipe (32) of the five-way pipe (3) is connected to the mechanism connecting pipe (22) of the rear triangle (2), and the second pipe (33) of the five-way pipe (3) is connected to the straight pipe part of the front triangle (1) to form a stable structure in the shape of an inverted triangle.

2. The toddler stroller frame according to claim 1, characterized in that: The front triangle (1) has a front frame fixing hole (10) at the end of the straight tube, and the rear triangle (2) has a through rear frame fixing hole (9) at the junction of the frame connecting tube (21) and the component connecting rod (24). The front triangle (1) and the rear triangle (2) are fixed by bolts and nuts that are assembled together by the front frame fixing hole (10) and the rear frame fixing hole (9).

3. The toddler stroller frame according to claim 1, characterized in that: The first pipe (32) of the five-way pipe (3) is provided with a rear mechanism fixing groove (34), and the mechanism connecting pipe (22) of the rear triangle (2) is provided with a V-shaped mechanism fixing hole (8) that matches the rear mechanism fixing groove (34). The first pipe (32) and the mechanism connecting pipe (22) are fixed by bolts and nuts assembled together by the V-shaped mechanism fixing hole (8) and the rear mechanism fixing groove (34).

4. The toddler stroller frame according to claim 1, characterized in that: The second pipe (33) of the five-way pipe (3) is provided with a front mechanism fixing head (35), and the bottom of the straight pipe of the front triangle (1) is provided with a V-shaped mechanism fixing groove (12) that matches the front mechanism fixing head (35). The second pipe (33) and the front triangle (1) are fixed by the cooperation of the front mechanism fixing head (35) and the V-shaped mechanism fixing groove (12).

5. A baby walker, characterized in that: Includes a toddler stroller frame as described in any one of claims 1-4.

6. A baby walker according to claim 5, characterized in that: The front triangle (1) of the toddler stroller frame is connected to the front mechanism (4), the two component connecting rods (24) of the rear triangle (2) are connected to the rear mechanism (5), the component connecting tube (23) of the rear triangle (2) is connected to the seat component (7), and the drive component fixing tube (31) of the five-way tube (3) is connected to the drive component (6).

7. A baby walker according to claim 5, characterized in that: The front mechanism (4) includes a fork assembly, handlebars and a front wheel. The fork assembly is connected to the handlebars via a fork bushing located inside the head tube (11). The fork is connected to the front wheel via a front hub.

8. A baby walker according to claim 5, characterized in that: The drive component (6) includes a sprocket, a chain, a crank, and a pedal. The crank is connected to the drive component fixing pipe (31) of the bottom bracket (3) via the central shaft. The sprocket is fixed to the crank, the chain is connected to the sprocket, and the pedal is connected to the crank.

9. A baby walker according to claim 7, characterized in that: The rear mechanism (5) includes a rear wheel, which is connected to the component connecting rod (24) via a rear hub. The rear wheel is equipped with a flywheel, which is connected to a chain.

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