Baby stroller

Abstract

The utility model discloses a baby stroller which comprises two sets of side frames and two sets of bottom frames, the lower portion of each set of side frame is rotationally provided with one set of bottom frame, and the two sets of bottom frames are rotationally connected through a folding mechanism. The baby stroller comprises the two sets of side frames and the bottom frames, the two sets of bottom frames are rotationally connected through the folding mechanism, the stroller can be folded by lifting the folding mechanism, operation is easy, convenient and labor-saving, the occupied space is small after the stroller is folded, and transportation and storage are convenient.

Description

Technical Field

[0001] This utility model relates to the field of stroller technology, specifically to a baby stroller. Background Technology

[0002] With economic development and technological advancements, people's demands for baby products have become more diversified. Baby strollers, as a traditional baby product, provide convenience for people's outings and outdoor activities, and have a wide market demand.

[0003] However, existing baby strollers have a relatively complicated folding mechanism, making them difficult for users to operate, and they are also quite bulky when folded. Utility Model Content

[0004] To overcome the shortcomings of existing technology, this utility model provides a baby stroller.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A baby stroller includes a side frame and a base frame, each of which is provided in two sets. Each set of side frames has a base frame rotatably mounted on its lower part, and the two sets of base frames are rotatably connected by a folding mechanism.

[0007] As a preferred embodiment of the above solution, the side frame includes a handle and a fixed rod. The handle is hinged to the top of the fixed rod via a hinge seat, and the bottom of the fixed rod is rotatably connected to the base frame via a connecting seat. The fixed rods are fixedly connected to each other via a crossbeam.

[0008] As a preferred embodiment of the above solution, the upper part of the side frame is rotatably connected to a side connecting rod via a connecting seat.

[0009] As a preferred embodiment of the above solution, the connecting seat includes a fixing part and a hinge part. The fixing part is provided with a fixing hole, the hinge part is provided with a hinge hole, and the bottom of the hinge part is provided with a limiting support plate.

[0010] As a preferred embodiment of the above solution, an optical cable or connecting rod is provided between the side frame and the base frame. The two ends of the optical cable are fixedly connected to the side frame and the base frame respectively. The lower end of the connecting rod is hinged to the base frame, and the upper end is slidably mounted on the fixed rod of the side frame through a sliding seat.

[0011] As a preferred embodiment of the above solution, the base frame has a rectangular frame structure, including bottom side bars and bottom crossbars connected between the bottom side bars, and a wheel is provided at each of the four corners of the base frame.

[0012] As a preferred embodiment of the above solution, the folding mechanism includes a movable latch and a latch seat; the movable latch is located inside the bottom side rod and includes a latch body, which is fixedly connected to the bottom side rod. A return spring and a latch post are installed inside the latch body, and the end of the latch post is provided with an inclined surface; the latch seat is hinged to the bottom side rod, and a folding connecting seat is connected above the latch seat via a pull rod. The folding connecting seat is hinged to the side connecting rod via a hinge seat. The latch seat has two symmetrical left and right latching grooves that cooperate with the movable latch. A latch top block is located below the latching grooves inside the latch seat. The latch top block has an inclined surface that matches the latch post. A pull rope is connected to the latch top block. The pull rope is located inside the pull rod, and a pull handle connected to the pull rope is slidably provided on the pull rod.

[0013] As a preferred embodiment of the above solution, the two locking pins are connected by a folding central shaft.

[0014] As a preferred embodiment of the above solution, a return spring is provided on the top of the locking pin block.

[0015] As a preferred embodiment of the above solution, the upper part of the pull rod has a through hole along its length, and the pull rod is connected to the handle through the through hole.

[0016] Due to the above structure, the beneficial effects of this utility model are as follows:

[0017] The baby stroller of this application includes two sets of side frames and a base frame. The two sets of base frames are rotatably connected by a folding mechanism. The stroller can be folded by lifting the folding mechanism. The operation is simple, convenient and labor-saving. After folding, it occupies little space and is easy to transport and store. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the unfolded structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure during the folding process of this utility model;

[0021] Figure 3 This is a schematic diagram of the folded structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connector structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the folding mechanism structure of this utility model;

[0024] Figure 6 This is a cross-sectional view of the folding mechanism of this utility model. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] like Figures 1 to 6 As shown, this embodiment provides a baby stroller, including a side frame 1 and a base frame 2. The side frame 1 and the base frame 2 are each provided in two sets. Each set of side frames 1 is rotatably mounted with a set of base frames 2 at its lower part. The two sets of base frames 2 are rotatably connected by a folding mechanism 3.

[0027] In this embodiment, the side frame 1 includes a handle 11 and a fixed rod 12. The handle 11 is hinged to the top of the fixed rod 12 via a hinge seat 13. The bottom of the fixed rod 12 is rotatably connected to the base frame 2 via a connecting seat 4. The fixed rods 12 are fixedly connected to each other via a crossbeam 14. A side connecting rod 5 is rotatably connected to the upper part of the side frame 1 via the connecting seat 4. The connecting seat 4 includes a fixing part 41 and a hinge part 42. The fixing part 41 has a fixing hole, and the hinge part 42 has a hinge hole. A limiting support plate 43 is provided at the bottom of the hinge part 42. The limiting support plate 43 serves as a support point, preventing the connecting rod 5 and the tubing of the base frame 2 connected to it from pointing downwards.

[0028] In this embodiment, a light rope or connecting rod 6 is provided between the side frame 1 and the base frame 2. If it is a light rope (a soft and foldable rope), the two ends of the light rope are fixedly connected to the fixed rod 12 of the side frame 1 and the bottom side rod 21 of the base frame 2, respectively. If it is a connecting rod, the lower end of the connecting rod 6 is hinged to the base frame 2, and the upper end is slidably installed on the fixed rod 12 of the side frame 1 through the sliding seat 7. Both the light rope and the connecting rod 6 can pull the tube of the base frame 2 to prevent it from going down, thereby improving the structural strength of the folding frame.

[0029] In this embodiment, the base frame 2 has a rectangular frame structure, including bottom side rods 21 and bottom crossbars 22 connected between the bottom side rods 21, and a wheel 8 is provided at each of the four corners of the base frame 2.

[0030] In this embodiment, the folding mechanism includes a movable latch 31 and a latch seat 32. The movable latch 31 is located inside the bottom side rod 21 and includes a latch body 311, which is fixedly connected to the bottom side rod 21. A return spring 312 and a latch post 313 are installed inside the latch body 311, and the end of the latch post 313 is provided with an inclined surface. The latch seat 32 is hinged to the bottom side rod 21, and the two latch seats 32 are connected by a folding central shaft 37. A folding connecting seat 34 is connected above the latch seat 32 by a pull rod 33. The folding connecting seat 34 is hinged to the side connecting rod 5 through a hinge seat. Symmetrical features are provided inside the latch seat 32. Two slots on the left and right sides cooperate with the movable locking pin 31. A locking pin top block 321 is provided in the locking pin seat 32 below the slot. The locking pin top block 321 has an inclined surface that matches the locking post 313. A return spring 322 is provided on the top of the locking pin top block 321. A pull rope 35 is connected to the locking pin top block 321. The pull rope 35 is located in the pull rod 33. A pull handle 36 connected to the pull rope 35 is slidably provided on the pull rod 33. A through hole 331 is opened in the upper part of the pull rod 33 along the length direction. The pull rod 33 is slidably connected to the pull handle 36 through the through hole 331.

[0031] The working principle of the above structure:

[0032] When folding is required, pull the handle 36 upwards. The handle 36, through the pull rope 35, moves the locking pin top block 321 upwards. The locking post 313 of the movable locking pin 31, pushed by the locking pin top block 321, moves left and right within the locking pin body 311, eventually disengaging from the locking groove of the locking pin seat 32, thus releasing the lock on the base frame 2. At this point, the folding mechanism 3 can be pulled upwards. Figure 2 As shown, the folding mechanism 3 drives the side connecting rod 5 and the base frame 2 connected to it to rotate upwards, while the sliding seat 7 slides upwards, finally folding to... Figure 3 As shown, after releasing the pull handle 36, the locking pin top block 321 can be reset under the action of the reset spring 322.

[0033] When it needs to be unfolded again, press down on the folding mechanism 3, which will cause the side connecting rod 5 and the base frame 2 connected to it to rotate downwards. At the same time, the sliding seat 7 slides downwards. When both sets of base frames 2 are pushed to the horizontal, the locking pin 313 in the bottom side rod 21 can be re-locked into the slot of the locking pin seat 32 under the action of the return spring 312, so that it cannot be lifted upwards, thus completing the unfolding.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stroller, characterized by: The side frame and the bottom frame are provided with two groups, and the lower part of each group of side frame is rotatably installed with a group of bottom frame. The side frame comprises handles and fixed rods, the handles are hingedly connected to the top end of the fixed rods through a hinged seat, the bottom end of the fixed rods is rotatably connected to the bottom frame through a connecting seat, and the fixed rods are fixedly connected through cross beams. The bottom frame is in a rectangular frame structure, comprising bottom side rods and bottom cross rods connected between the bottom side rods, and a wheel is arranged at each corner of the bottom frame. The folding mechanism comprises movable pins and pin seats, the movable pins are arranged in the bottom side rods and comprise pin bodies, the pin bodies are fixedly connected to the bottom side rods, a return spring and a pin column are arranged in the pin body, and an inclined surface is arranged at the end of the pin column, the pin seats are hingedly connected to the bottom side rods, a folding connecting seat is connected to the upper part of the pin seat through a pull rod, the folding connecting seat is hingedly connected to a side connecting rod through a hinged seat, two left and right pin slots matched with the movable pins are symmetrically arranged in the pin seat, a pin top block is arranged below the pin slots in the pin seat, an inclined surface matched with the pin column is arranged on the pin top block, the pin top block is connected with a pull rope, the pull rope is arranged in the pull rod, a pull handle connected with the pull rope is slidably arranged on the pull rod.

2. A stroller according to claim 1, characterized in that: The upper part of the side frame is rotatably connected with a side connecting rod through a connecting seat.

3. A stroller according to claim 1 or 2, characterized in that: The connecting seat comprises a fixed part and a hinged part, a fixed hole is arranged on the fixed part, a hinged hole is arranged on the hinged part, and a limiting support plate is arranged at the bottom of the hinged part.

4. A stroller according to claim 1, characterized in that: A light rope or a connecting rod is arranged between the side frame and the bottom frame, the two ends of the light rope are fixedly connected with the side frame and the bottom frame, the lower end of the connecting rod is hingedly connected with the bottom frame, and the upper end is slidably installed on the fixed rod of the side frame through a sliding seat.

5. A stroller according to claim 1, characterized in that: Two pin seats are connected through a folding shaft.

6. A stroller according to claim 1, characterized in that: A return spring is arranged on the top of the pin top block.

7. A stroller according to claim 1, characterized in that: A through long hole is formed in the upper part of the pull rod along the length direction, and the pull rod is connected with the pull handle through the through long hole.

Images