A rotating structure and a baby carriage with the rotating structure

Abstract

The utility model relates to the technical field of baby carriage, specifically provide a kind of rotation structure of baby carriage, comprising: rotating arm, with bending portion, insert in another component;Connecting rod, fixedly connected in one end of rotating arm;Limiting plate, vertically and integrally connected in one end of connecting rod away from rotating arm;Fixed code, with the perpendicular sliding connection of connecting rod, the connecting rod passes through fixed code, the fixed code is between limiting plate and rotating arm;Spring, cover on connecting rod, two ends respectively with limiting plate and fixed code abut, can better fold baby carriage.

Description

Technical Field

[0001] This utility model relates to the technical field of baby strollers, and more particularly to a rotating structure and a rotating structure for baby strollers. Background Technology

[0002] A stroller is a hand-operated vehicle used by an infant and driven by their guardian or caregiver.

[0003] The folding and storage function of strollers has become increasingly important. The floor space occupied by a stroller after it is folded up directly affects a family's quality of life. The addition of a new baby is a happy event, but it also leads to insufficient living space. In addition to the new baby, grandparents, nannies, and other caregivers may also need to join the family to take care of the child. Therefore, the utilization rate of living space becomes particularly important.

[0004] The folding capacity of a stroller has become one of its core competitive advantages.

[0005] A Chinese patent with authorization announcement number CN223340713U discloses a folding stroller that achieves folding, but the size of the stroller after folding is still relatively large and the storage capacity is not high enough. Utility Model Content

[0006] The purpose of this utility model is to provide a stroller frame to improve storage capacity.

[0007] To achieve the above objectives, this application provides a rotating structure with a rotating arm having a bent portion that is inserted into another component; A connecting rod is fixedly connected to one end of the rotating arm; A limiting plate is vertically and integrally connected to the end of the connecting rod away from the rotating arm; A fixing code is slidably connected perpendicularly to the connecting rod, the connecting rod passes through the fixing code, and the fixing code is located between the limiting plate and the rotating arm; A spring is fitted onto the connecting rod, with its two ends abutting against the limiting plate and the fixing bracket, respectively.

[0008] Furthermore, a caster wheel is fixed to the bottom end of the rotating arm, and the component is either open at the front or open at the rear.

[0009] Furthermore, the rotating arm and the connecting rod are threaded together.

[0010] Another technical objective of this application is to provide a rotating structure for a stroller, which facilitates the storage of the stroller wheels.

[0011] The above-mentioned technical objective is achieved through the following technical solution: a rotating structure for a stroller, characterized in that it includes a rotating arm having a bent portion that is inserted into another component; A connecting rod is fixedly connected to one end of the rotating arm; A limiting plate is vertically and integrally connected to the end of the connecting rod away from the rotating arm; A fixing code is slidably connected perpendicularly to the connecting rod, the connecting rod passes through the fixing code, and the fixing code is located between the limiting plate and the rotating arm; A spring is fitted onto a connecting rod, with its two ends abutting against a limiting plate and a fixing bracket, respectively. The rotating structure is used for storing the stroller through the front and rear passages.

[0012] In summary, this utility model has the following advantages compared with the prior art: 1. The casters of this application can be retracted after folding without being exposed, taking up less space and being easier to carry. This is a significant improvement compared to the existing technology where some products are loose after folding and many products still require manual pushing after folding. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the stroller in the embodiment. Figure 2 This is a schematic diagram of the internal structure of the stroller in the embodiment; Figure 3 This is a schematic diagram of the moving structure in the embodiment; Figure 4 This is a side view of the vehicle frame in the embodiment; Figure 5 for Figure 4 Enlarged view of section A in the middle; Figure 6 for Figure 4 Enlarged view of part B in the image; Figure 7 This is a schematic diagram of the vehicle frame structure in the embodiment; Figure 8 for Figure 7 Sectional view of AA; Figure 9 for Figure 7 Enlarged view of section C in the image; Figure 10 This is a schematic diagram of the caster wheel and rotating structure in the embodiment; Figure 11 This is a schematic diagram of the folded state of the vehicle frame in the embodiment. Figure 12 This is a schematic diagram of the structure of Example 3.

[0014] Reference numerals: 1. Frame; 10. Armrest mounting bracket; 11. Sun visor mounting bracket; 110. Connecting pipe; 111. Top screw; 12. Slide rail; 13. Baffle; 2. Moving structure; 20. Front passage; 200. Connecting end; 21. Rear passage; 22. Support frame; 220. Support rod; 221. Protruding contact part; 222. Rotating connection part; 23. Slider; 24. Foot pedal; 25. Wheel; 26. Rotating structure; 264. Rotating arm; 260. Connecting rod; 261. Spring; 262. Limiting plate; 263. Fixing bracket; 2630. Horizontal plate; 2631. Vertical plate; 3. Pull rod; 4. Snap-fit ​​structure; 40. Rotating column; 41. Positive wedge-shaped clamping plate; 42. Negative wedge-shaped clamping plate; 5. Mounting plate; 6. Armrest; 7. Baby seat; 8. Backpack; 9. Sun visor; 90. Fixing rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Example 1: A foldable stroller, referring to... Figure 1 , Figure 2 It includes a cubic frame 1 and a movable structure 2. In the folded state, the movable structure 2 is stored inside the frame 1. In the use state, the movable structure 2 extends from the bottom of the frame 1 to provide support and mobility for the frame 1. A pull rod 3 extends upward from the top edge of the frame 1. A baby seat 7 is fixed to the front of the frame 1. A backpack 8 is installed on the back of the frame 1.

[0017] The push handle 3 utilizes the movable structure 2 at the bottom of the frame 1 to enable the stroller to move. The baby seat 7 is used to place the baby, while the backpack 8 is used to place other items, including goods purchased during shopping, personal belongings, and some parts that can be disassembled after the stroller is folded.

[0018] Reference Figure 3 The moving parts include two front passages 20, two rear passages 21, and sliders 23 that are hinged to the front passages 20 and the rear passages 21 respectively. The frame 1 has slide rails 12 on both sides for the sliders 23 to slide. The sliders 23 are slidably connected in the slide rails 12. When the stroller is unfolded and in use, the sliders 23 are located at the lowest end of the slide rails 12. When the stroller is folded up, the sliders 23 are located at the highest end of the slide rails 12.

[0019] Reference Figures 4-8A support frame 22 is provided between the front passage 20 and the rear passage 21. The support frame 22 can limit the maximum unfolding angle of the front passage 20 and the rear passage 21. In this embodiment, the maximum unfolding angle is greater than 90°. In the unfolded state, the front passage 20 and the rear passage 21 cannot be retracted into the slide rail 12. The limitation of the support frame 22 also prevents them from unfolding to a larger angle, thus achieving a stable support state. The bottom ends of the front passage 20 and the rear passage 21 are provided with wheels 25. In this embodiment, the wheels 25 are universal wheels, which are used to provide the stroller's mobility function.

[0020] In this embodiment, to facilitate the placement and fixing of the infant seat 7 and to ensure that the length of the front passage 20 is greater than the length of the rear passage 21 when the infant is seated.

[0021] The support frame 22 includes two hinged support rods 220. A circular rotating connecting piece 222 is fixed on each of the two support rods 220. The two rotating connecting pieces 222 overlap and are rotatably connected to each other. The two support rods 220 are rotatably connected by the two rotating connecting pieces 222. Each of the two support rods 220 has a protruding abutment part 221 at the end that is close to each other. The protruding abutment part 221 is located at the bottom of the rotating connecting piece 222. When the two support rods 220 are rotated outward with the rotating connecting piece 222 as the axis, the two protruding abutment parts 221 abut against each other and reach the maximum angle. In this embodiment, the maximum angle is set to 165°. Other embodiments can be 150°, 120°, 170°, etc.

[0022] The two ends of the support frame 22, namely the two support rods 220, which are opposite to each other, are rotatably connected to the front passage 20 and the rear passage 21 respectively. As the rotation angle between the front passage 20 and the rear passage 21 expands, the two rotating connecting pieces 222 gradually approach the sliding block. The support frame 22 forms a convex quadrilateral with the front passage 20 and the rear passage 21. In the folded state, the two support rods 220 overlap with the front passage 20 and the rear passage 21 respectively. At this time, the distance between the rotating connecting piece 222 and the sliding block is the farthest.

[0023] In another embodiment, the support frame 22 forms a concave quadrilateral with the front passage 20 and the rear passage 21, while the protruding contact portion 221 is located at the top of the rotating connecting piece 222.

[0024] Combination Figure 11During stroller folding, pulling the lever 3 upwards causes the front passage 20 and rear passage 21 to move closer together due to gravity. The two support rods 220 rotate in opposite directions, and the two protruding contact parts 221 separate until the front passage 20 and rear passage 21 overlap. At this point, the front passage 20 is in contact with the ground, and the rear passage 21 is detached from the ground. The front passage 20, rear passage 21, and frame 1 all hang vertically downwards. Slowly reducing the pulling force by holding the lever 3 allows the slider 23 to slide upwards along the slide rail 12. In reality, the slider 23 does not move, but the frame 1 moves downwards along the slide rail 12 until the wheels 25 contact the frame 1. Folding is then complete. Fixing the slider 23 relative to the slide rail 12 at this point completes the folding and folding process.

[0025] The entire process can be completed with just one hand. The only movements are pulling up and then releasing down, and finally locking the action.

[0026] If the width of the frame 1 is greater than the size of the wheel 25, it can be completely stored. However, in this embodiment, in order to reduce the thickness of the frame 1, a rotating structure 26 is provided at the connection between the wheel 25 and the front passage 20 / rear passage 21. During the storage process, the wheel 25 only needs to be rotated ninety degrees to store the wheel 25 horizontally inside the frame 1.

[0027] A rotating structure 26 is provided between the front passage 20 and the wheel 25, and between the rear passage 21 and the wheel 25. Taking the rotating structure 26 between the front passage 20 and the wheel 25 as an example, the top of the rotating structure 26 is inserted into the front passage 20, and the bottom of the rotating structure 26 is fixedly connected to the wheel 25. The cross-sectional shape of both the rotating structure 26 and the front passage 20 is square, and the bottom of the rotating structure 26 can also be a connecting end 200.

[0028] Reference Figure 9 , Figure 10 The rotating structure 26 includes a rotating arm 264 and a connecting rod 260 threadedly connected to the top of the rotating arm 264. A fixing bracket 263 is fixed on the connecting rod 260. The fixing bracket 263 includes a horizontal plate 2630 and a vertical plate 2631 that are perpendicular to each other. The horizontal plate 2630 and the vertical plate 2631 are vertically and integrally connected in an L-shape. The fixing bracket 263 is vertically disposed inside the square tube of the front passage 20. The connecting rod 260 passes through the middle of the fixing bracket 263 and is fixed to the fixing bracket 263. A limiting plate 262 extends vertically outward from the end of the fixing rod 90 away from the rotating structure 26. A spring 261 is disposed between the limiting plate 262 and the fixing bracket 263. The two ends of the spring 261 abut against the limiting plate 262 and the fixing bracket 263, respectively. The two sides of the fixing bracket 263 are fixed to the front passage 20. Specifically, the fixing method is to insert it into the outer wall of the front passage 20 and connect it to the fixing bracket 263 by insertion or threading. In this embodiment, it is inserted.

[0029] During storage, the rotating structure 26 is pulled out from the front passage 20, rotated 90 degrees, and then inserted back into the front passage 20. This completes the rotation of the wheel 25, allowing the wheel 25 to enter the frame 1 laterally. The rotating arm 264 is set in a bent arc shape to ensure that the wheel 25 remains vertically downward when in operation.

[0030] During the process of pulling out the rotating structure 26, since the fixing bracket 263 and the front passage 20 are in a fixed state, the connecting rod 260 drives the limiting plate 262 to compress the spring 261, rotates 90 degrees and then inserts back into the square tube of the front passage 20. Throughout the process, the rotating structure 26 does not completely detach from the front passage 20, and the spring 261 provides tension between the front passage 20 and the rotating structure 26 to maintain the stability of the connection, preventing loosening during long-term use. Moreover, this rotation method automatically achieves stability through the square shape, without the need for additional locking of the rotating structure, making it more secure when using the stroller.

[0031] In order to maintain stability after the movable structure 2 is stored, a snap-fit ​​structure 4 is provided to connect the slider 23 and the frame 1 for temporary fixation. The snap-fit ​​structure 4 includes a positive wedge-shaped snap-fit ​​plate 41 protruding from the side of the slider 23 and a rotating column 40 passing through the top surface of the frame 1. A negative wedge-shaped snap-fit ​​plate 42 extends vertically outward from the side of the rotating column 40. The positive wedge-shaped snap-fit ​​plate 41 and the negative wedge-shaped snap-fit ​​plate 42 form a snap-fit ​​fixation.

[0032] In this embodiment, the snap-fit ​​structure 4 is selected from the existing technology of "MS753 plastic push lock impact door lock embedded equipment lock". The lock tongue of this product serves as the reverse wedge-shaped locking plate 42, and the top push switch serves as the unlocking post 40. After pressing the unlocking post 40, the reverse wedge-shaped locking plate 42 (lock tongue) retracts and can disengage from the positive wedge-shaped locking plate 41 to unlock.

[0033] In specific connection, when the slider 23 slides to the top, the inverted wedge plate 41 engages with the positive wedge plate on the slider 23. When unlocking is required, press the unlocking post 40 to retract the positive wedge plate 41 and disengage it from the inverted wedge plate 42, thus unlocking the device.

[0034] In this embodiment, mounting plates 5 are provided at both the front and rear of the frame 1. The mounting plate 5 at the front of the frame 1 is used to fix the baby seat 7, and the mounting plate 513 at the rear of the frame 1 is used to fix the backpack 8.

[0035] In this embodiment, two front passages 20 are fixedly connected with parallel pedals, which are used for the footrest 24 position when the baby is riding.

[0036] This embodiment also includes a sunshade 9, which is positioned above the infant seat 7. A fixing rod 90 extends from the side of the sunshade 9 near the frame 1. Sunshade mounting brackets 11 are provided on both sides of the top of the frame 1. A connecting tube 110 is vertically fixed to the side of the sunshade mounting bracket 11. The fixing rod 90 is inserted into the connecting tube 110. A set screw 111 is threaded onto the side wall of the connecting tube 110 and abuts against the fixing rod 90.

[0037] The frame 1 is also equipped with armrest mounting brackets 10 on both sides, and armrests 6 are installed on the armrest mounting brackets 10 for infants to hold onto when riding.

[0038] In the specific implementation process, when the stroller needs to be folded, pull the lever 3 upward so that the bottom ends of the front passage 20 and the rear passage 21 lose their interaction force with the ground, so that the front passage 20 and the rear passage 21 rotate downward around the slider 23 and hang freely. At this time, the sliding between the slider 23 and the slide rail 12 is unrestricted and can slide freely. Move the lever 3 downward. At this time, the front passage 20 touches the ground. Due to the gravity of the frame 1 itself, the frame 1 moves downward. The sliding connection between the slider 23 and the slide rail 12 allows the front passage 20 and the rear passage 21 to gradually enter the frame 1 until the rotating structure 26 is located at the bottom edge of the frame 1 and cannot enter. At this time, pull out the rotating structure 26 and rotate it ninety degrees so that the wheel 25 can be placed horizontally and enter the frame 1.

[0039] After the entire movable structure 2 is stored inside the frame 1, rotate the rotating column 40 to make the positive wedge block and the negative wedge block engage, thus completing the folding and storage of the stroller.

[0040] For better storage, the pull rod 3 in this embodiment is a telescopic pull rod 3. After folding, the pull rod 3 is retracted into the frame 1.

[0041] Example 2 is basically the same as Example 1, except that, referring to... Figure 12 The cross-section of the rotating structure 26 and the front and rear passages 20 and 21 is a regular octagon. In other embodiments, it can also be a square with rounded corners, or other shapes listed in the figures, or other shapes not exhaustively listed in the figures that allow the rotating structure and the connecting end to have two insertion angles with a difference of 90° or close to 90° between the two angles.

[0042] Example 3, referring to Figure 12This embodiment is basically the same as embodiment 1, except that the maximum opening angle of the front passage 20 and the rear passage 21 is limited by a fixed limiting structure on the frame 1, rather than by the support frame 22 as in embodiment 1. The aforementioned limiting structure presses against and limits the front passage 20 and the rear passage 21 from the outside. For example, if the bottom end of the frame 1 is set as a trapezoid, the waist of the trapezoid is used to limit the maximum opening angle of the front passage 20 and the rear passage 21. In this embodiment, an inclined baffle 13 is fixed on the frame 1 to limit the maximum opening angle of the front passage 20 and the rear passage 21.

[0043] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotating structure, characterized in that, include: The rotating arm (264) has a bent portion that is inserted into another component; The connecting rod (260) is fixedly connected to one end of the rotating arm (264); A limiting plate (262) is vertically and integrally connected to the end of the connecting rod (260) away from the rotating arm (264); A fixing code (263) is slidably connected to the connecting rod (260) perpendicularly, the connecting rod (260) passes through the fixing code (263), and the fixing code (263) is located between the limiting plate (262) and the rotating arm (264); A spring (261) is fitted onto a connecting rod (260), with its two ends abutting against a limiting plate (262) and a fixing bracket (263) respectively.

2. The rotating structure according to claim 1, characterized in that, The bottom end of the rotating arm (264) is fixed with a caster wheel, and the component is a front-through (20) or a rear-through (21).

3. A rotating structure according to claim 2, characterized in that, The rotating arm (264) is threadedly fixed to the connecting rod (260).

4. A rotating structure for a baby stroller, characterized in that, Includes a rotating arm (264) having a bent portion that is inserted into another component; The connecting rod (260) is fixedly connected to one end of the rotating arm (264); A limiting plate (262) is vertically and integrally connected to the end of the connecting rod (260) away from the rotating arm (264); A fixing code (263) is slidably connected to the connecting rod (260) perpendicularly, the connecting rod (260) passes through the fixing code (263), and the fixing code (263) is located between the limiting plate (262) and the rotating arm (264); A spring (261) is fitted onto a connecting rod (260), with its two ends abutting against a limiting plate (262) and a fixing bracket (263) respectively; The rotating structure (26) is used to store the front passage (20) and the rear passage (21) of the stroller.

Images