A foldable baby carriage frame
By designing a foldable stroller frame and utilizing the cooperation of support and moving mechanisms, the stroller can be easily and quickly folded and conveniently moved, solving the problems of cumbersome folding steps and inconvenient movement of large foldable strollers in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HOBBIES BABY PRODUCTS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
AI Technical Summary
Existing large foldable strollers have complicated folding steps, and are still quite bulky and inconvenient to move after folding, especially flat-lying strollers, which are difficult to store and move.
Design a foldable stroller frame, including a support mechanism, first and second support parts, and first and second movable mechanisms. The folding and extension of these mechanisms enable the translational movement of the support parts. Combined with the movable mechanism, the stroller can be moved in the folded state.
This invention enables simple and quick folding of strollers, reduces space occupation, and allows for easy movement when folded, solving the problems of cumbersome folding steps and inconvenient movement in existing technologies.
Smart Images
Figure CN224528752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of strollers, specifically a foldable stroller frame. Background Technology
[0002] A stroller is a baby's "transportation tool," a vehicle that requires assistance to push or pull. A stroller generally consists of a sunshade, seat cushion, bassinet, and smog cover, and its service life is generally three to five years. Folding strollers have improved portability and adaptability to modern life compared to traditional strollers, and are therefore widely used today. However, most folding strollers currently use a semi-sitting design, which has the following problems: (1) The spine of infants under 6 months is not fully developed, and long-term semi-sitting may lead to back slump, insufficient muscle support, and affect the development of postural muscles; (2) The forward-facing stroller design makes the infant face away from the parent, hindering parent-child interaction and making it impossible to observe the infant's condition in time (such as choking or insect bites); (3) Side obstruction of vision will also limit the infant's ability to explore the environment; (4) Sleeping in a semi-sitting position is similar to the curled-up position of an adult airplane seat, which may affect the infant's sleep quality.
[0003] For the reasons mentioned above, large foldable strollers designed for infants to lie flat have been developed. These strollers, with their larger frame, can not only accommodate a crib for babies to lie flat during outings, but also multiple seats (usually two or four seats in the front and back), allowing for simultaneous outdoor travel with multiple infants and saving manpower and resources. However, most existing large foldable strollers involve cumbersome folding procedures (requiring multiple joints); their folded size remains large (especially those with a chassis base), making storage in the trunk inconvenient; and they can only be moved by hand after folding, which is very inconvenient. Utility Model Content
[0004] This invention addresses the problems of cumbersome folding steps, large size, and inconvenient movement of existing large foldable strollers. It provides a foldable stroller frame that is simple and quick to fold, occupies little space, and can still be easily moved when folded.
[0005] The technical solution adopted in this utility model is: A foldable stroller frame, comprising: The support mechanism has at least a first support section and a second support section; The first movable mechanism is disposed between the first support part and the second support part; The second movable mechanism is disposed between the first support and the second support, and is located on the opposite side from the first movable mechanism; The foldable stroller frame has an infant support component on the side near the first movable mechanism; a moving mechanism is provided on the side of the foldable stroller frame near the second movable mechanism, the moving mechanism including a first moving component on the first support and a second moving component on the second support; and both the first and second movable mechanisms are foldable and extendable, so that the first and second support can be folded and unfolded by relative translational movement.
[0006] Furthermore, an operating lever is provided on the side of the second support near the first movable mechanism, and the operating lever and the second support are rotatably connected by a first movable joint; and a stop bar is provided on the side of the first support near the first movable mechanism.
[0007] Furthermore, the first movable joint has at least a first movable member and a second movable member; an adjustment button is provided at the connection between the first movable member and the second movable member, and a locking tooth structure is internally connected to the adjustment button; when the adjustment button is pressed, the locking tooth structure becomes disengaged, and the first movable joint can be freely adjusted in angle; when the adjustment button is released, the locking tooth structure becomes engaged, and the first movable joint remains fixed.
[0008] Furthermore, a first canopy bracket is inserted into the operating lever; a second canopy bracket is inserted into the stop lever.
[0009] Furthermore, a third canopy support frame is provided above the support mechanism, and the third canopy support frame has at least a plurality of L-shaped connecting rods; the L-shaped connecting rods are inserted into the support mechanism, and the plurality of L-shaped connecting rods are hinged to each other, and the third canopy support frame can be folded and unfolded by the relative rotation of the plurality of L-shaped connecting rods; when the third canopy support frame is placed on the support mechanism in the unfolded state, the third canopy support frame and the support mechanism can be mutually limited.
[0010] Furthermore, the first movable mechanism has at least two first movable components; the first movable component includes a first movable rod hinged to the first support portion and a second movable rod hinged to the second support portion; the first movable rod and the second movable rod are hinged together by a first hinge member.
[0011] Furthermore, the first hinge member is provided with a first guide groove; both the first movable rod and the second movable rod are provided with insertion holes, and a pin is provided in the insertion hole, and the pin is slidably disposed in the first guide groove.
[0012] Furthermore, the second movable mechanism has at least a third movable rod and a fourth movable rod; the third movable rod is rotatably mounted on the first support; the fourth movable rod is rotatably mounted on the second support; and the third movable rod and the fourth movable rod are hinged together by a hinge assembly.
[0013] Furthermore, the hinge assembly has at least a seventh connecting rod and bidirectional hinge seats disposed on both sides of the seventh connecting rod; the bidirectional hinge seats are disposed between the third and fourth movable rods and are hinged to the perforated gears disposed at the ends of the third and fourth movable rods on both sides through a fifth hinge hole and a hinge shaft; a double-ended plug is slidably disposed inside the seventh connecting rod; and a gear-side insertion hole adapted to the double-ended plug is provided on the perforated gear; and a rotary lock is rotatably disposed on the seventh connecting rod, the rotary lock having zigzag grooves on both sides, a slider being slidably embedded in the zigzag grooves, the other end of the slider passing through the groove on the surface of the seventh connecting rod and entering the interior of the seventh connecting rod, and hinged to the double-ended plug.
[0014] Furthermore, the hinge assembly has at least a fifth hinge, a sixth hinge, and a seventh hinge; the sixth hinge is connected to the third movable rod; the seventh hinge is connected to the fourth movable rod; and the fifth, sixth, and seventh hinges are rotatably connected by a pivot.
[0015] Furthermore, both the sixth and seventh hinges are provided with limiting ports; the fifth hinge is provided with a sliding groove, and a sliding rod is slidably disposed in the sliding groove; when the second movable mechanism extends, the limiting ports and the sliding groove can rotate to coincide, so that the sliding rod enters the limiting ports.
[0016] Furthermore, the fifth hinge member is provided with a second guide groove; the sixth and seventh hinge members are both provided with pin holes, and pins are provided in the pin holes, with the pins slidably disposed in the second guide groove.
[0017] Furthermore, the first movable component has at least two omnidirectional wheels; the second movable component has at least a rotating shaft, with rollers arranged on both sides of the rotating shaft, the rollers and the omnidirectional wheels being arranged alternately along the axial direction; and a foot pedal is provided on the rotating shaft of the second movable component. Furthermore, a protective fence is provided on the first movable mechanism, and the protective fence is connected to the first movable mechanism through a pluggable snap-fit connector and a pluggable card holder; the pluggable snap-fit connector is provided with a snap-fit block, the snap-fit block is provided with a slot, the side wall of the snap-fit block is provided with a second snap-fit block, and the pluggable snap-fit connector is provided with a second snap-fit button that is linked to the second snap-fit block; the pluggable card holder has an insertion port that is adapted to the snap-fit block, and the insertion port is provided with a second snap-fit groove that is adapted to the second snap-fit block, and an insertion strip that is adapted to the slot.
[0018] The beneficial effects of this utility model are: 1. This utility model provides a support mechanism with a first support part and a second support part, and a first movable mechanism and a second movable mechanism are provided between the first support part and the second support part; the two first movable components on both sides of the first movable mechanism and one end of the first support part and the second support part form a placement space for the baby bassinet; and a moving mechanism is provided on the first support part and the second support part, located at the end where the second movable mechanism is located; by relying on the folding and extension of the first movable components and the second movable mechanism, the relative translational movement of the first support part and the second support part on both sides is realized to fold and unfold, so that the moving mechanism can still be used for moving the foldable stroller frame in the folded state, solving the problem that the folding steps of the existing flat foldable stroller are cumbersome, the folded size is still large and the movement is inconvenient. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional schematic diagram of the stroller frame in the unfolded state of Embodiment 1 of this utility model; Figure 2 This is a top view of the stroller frame of Embodiment 1 of this utility model; Figure 3 This is a bottom view of the stroller frame of Embodiment 1 of this utility model; Figure 4 This is a front view of the stroller frame in a semi-open state according to Embodiment 1 of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A in the middle; Figure 6 This is a three-dimensional schematic diagram of the stroller frame in the folded state according to Embodiment 1 of this utility model; Figure 7 This is a three-dimensional schematic diagram of the operating lever of Embodiment 1 of this utility model; Figure 8 This is a perspective view of the first connecting member in Embodiment 1 of this utility model; Figure 9 This is a three-dimensional schematic diagram of the third support rod in Embodiment 1 of this utility model; Figure 10 This is a three-dimensional schematic diagram of the first hinge member in Embodiment 1 of this utility model; Figure 11 This is a three-dimensional schematic diagram of the hinge assembly of Embodiment 1 of this utility model.
[0021] Figure 12 This is a three-dimensional schematic diagram of the seventh connecting rod in Embodiment 1 of this utility model; Figure 13 This is a three-dimensional schematic diagram of the perforated gear of Embodiment 1 of this utility model; Figure 14 This is a bottom view of the rotary lock of Embodiment 1 of this utility model; Figure 15 This is a perspective view of the second moving component in Embodiment 1 of the present invention; Figure 16 This is a three-dimensional schematic diagram of the stroller frame according to Embodiment 2 of this utility model; Figure 17 This utility model Figure 16 Enlarged view of point B in the middle; Figure 18 This is a three-dimensional schematic diagram of the fifth hinge member in Embodiment 2 of this utility model; Figure 19 This is a three-dimensional schematic diagram of the sixth hinge member in Embodiment 2 of this utility model; Figure 20 This is a three-dimensional schematic diagram of the extended state of the hinge assembly in Embodiment 2 of this utility model; Figure 21 This is a three-dimensional schematic diagram of the hinge assembly in the folded state according to Embodiment 2 of this utility model; Figure 22 This is a three-dimensional schematic diagram of the stroller frame of Embodiment 3 of this utility model. Figure 23 This is a three-dimensional schematic diagram of the plug-in snap-fit connector of Embodiment 3 of this utility model.
[0022] Reference numerals: 100-Support mechanism, 110-First support rod, 120-Second support rod, 130-Third support rod, 140-Fourth support rod, 150-First connector, 151-First connecting rod, 152-Second connecting rod, 153-First slot, 154-First hinge hole, 155-Second hinge hole, 156-Connecting sleeve, 157-Sliding latch, 158-Sliding part, 159-Press latch, 160-Second connector, 161-First snap, 162-First snap groove, 163-Third connecting rod, 164-First locking block, 170-Third connector, 174-Fourth connecting rod, 180-Auxiliary slide rail, 191-Fifth connecting rod, 192-Sixth connecting rod; 200-First movable mechanism, 210-First hinge, 211-Inner recess, 212-First guide groove, 213-Third hinge hole, 214-Fourth hinge hole, 220-First movable rod, 230-Second movable rod, 240-First auxiliary movable rod, 250-Pull-out card holder, 280-Protective fence, 290-Pull-out card connector, 292-Pull-in block, 294-Second card block, 296-Second snap button, 298-Slot; 300 - Second moving mechanism, 310 - Hinge assembly, 320 - Seventh connecting rod, 321 - Double-ended connector, 322 - Rotary lock, 323 - Pull ring, 324 - Rotating plate, 325 - Zigzag groove, 330 - Two-way hinge seat, 331 - Fifth hinge hole, 332 - Gear with hole, 333 - Gear side insertion hole, 340 - Second auxiliary moving rod, 342 - Auxiliary collar, 344 - Auxiliary connecting rod, 350 - Fifth hinge, 351- First pivot hole, 352- Sliding groove, 353- Sliding rod, 354- Lifting ring, 355- Second guide groove, 360- Sixth hinge, 362- Second pivot hole, 363- Limiting port, 364- Pin hole, 370- Seventh hinge, 380- Third movable rod, 381- First sleeve part, 382- U-shaped connecting rod, 390- Fourth movable rod, 392- Second sleeve part; 410-First moving component, 420-Second moving component, 421-Rotating shaft, 423-Fourth connecting member, 425-Roller, 426-Foot pedal, 427-Anti-slip strip; 510-First ceiling support, 520-Second ceiling support, 530-Third ceiling support, 531-L-shaped connecting rod, 532-Insertion interface, 533-Third hinge, 534-Fourth hinge; 600-Operating lever, 610-Fifth movable lever, 620-First movable joint, 621-First movable part, 622-Second movable part, 623-Plug-in part, 624-First plug rod, 625-Adjustment button, 626-Clip tooth structure, 627-Second slot; 700-Grip lever; 800 - Shelf, 810 - Ring rod. Detailed Implementation
[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.
[0025] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.
[0026] Example 1
[0027] Most large foldable strollers have complicated folding steps (requiring multiple joints to work together); and they are still quite bulky after folding, making them difficult to store in the trunk; in addition, they can only be moved by hand after folding, which is very inconvenient.
[0028] To address the aforementioned problems in the prior art, this embodiment provides a foldable stroller frame. This foldable stroller frame can accommodate baby carrier components such as cribs, bassinets, or multiple stroller seats, for assembling a stroller for outdoor strolling of the baby. This foldable stroller frame is simple and quick to fold, occupies little space, and can still be easily moved even when folded. Please refer to [link / reference]. Figures 1-6 The foldable stroller frame mainly includes: a support mechanism 100, a first movable mechanism 200, a second movable mechanism 300, and a moving mechanism, etc.
[0029] The support mechanism 100 is the main frame component of the foldable stroller frame in this embodiment, used to form a stable main frame structure and to house and position other mechanisms and components. For example... Figure 1 , Figure 2 , Figure 3As shown, the support mechanism 100 mainly includes a first support rod 110, a second support rod 120, a third support rod 130, and a fourth support rod 140. The four support rods are arranged parallel to each other. When the stroller is unfolded, the four support rods are roughly positioned at the four corners of a rectangle. A first connector 150 is provided at one end of the first support rod 110, the second support rod 120, the third support rod 130, and the fourth support rod 140 on the same side. A second connector 160 is provided at the other end of the first support rod 110 and the second support rod 120; and a third connector 170 is provided at the other end of the third support rod 130 and the fourth support rod 140. The first connector 150 is approximately right-angled. A first connecting rod 151 is provided between the two first connectors 150 on the first support rod 110 and the second support rod 120; and a second connecting rod 152 is provided between the two first connectors 150 on the third support rod 130 and the fourth support rod 140. Meanwhile, the second connecting member 160 is generally cylindrical in shape, and a third connecting rod 163 is provided between the two second connecting members 160 on the first support rod 110 and the second support rod 120. Furthermore, the third connecting member 170 is generally cylindrical in shape, and a fourth connecting rod 174 is provided between the two third connecting members 170 on the third support rod 130 and the fourth support rod 140. It should also be noted that in this embodiment, the first support rod 110, the second support rod 120, and the first connecting member 150 and the second connecting member 160 between them together form a first support portion; the third support rod 130, the fourth support rod 140, and the first connecting member 150 and the third connecting member 170 between them together form a second support portion. In one or more other embodiments, the first support portion and the second support portion may also adopt other structures, such as an integrated rectangular frame structure.
[0030] The first movable mechanism 200 is used to connect the first support part and the second support part. The first movable mechanism 200 mainly includes two first movable components symmetrically arranged on both sides. Each first movable component mainly includes a first hinge 210, a first movable rod 220, and a second movable rod 230. One side of the first hinge 210 is hinged to the first movable rod 220; the other side of the first hinge 210 is hinged to the second movable rod 230. Furthermore, the other end of the first movable rod 220 is hinged to a first connecting member 150 on the first support rod 110 or the second support rod 120; the other end of the second movable rod 230 is hinged to a first connecting member 150 on the third support rod 130 or the fourth support rod 140, thereby allowing the first movable components to fold or extend, and enabling the first and second support parts on both sides to move relative to each other to retract or unfold.
[0031] The second movable mechanism 300 is used for the movable connection between the other ends of the first and second support parts. The second movable mechanism 300 mainly includes a hinge assembly 310, two third movable rods 380, and two fourth movable rods 390. Each of the two third movable rods 380 has a first sleeve portion 381 at its end near the first support part, and both first sleeve portions 381 are rotatably sleeved on the third connecting rod 163; both third movable rods 380 are hinged to the hinge assembly 310. Furthermore, each of the two fourth movable rods 390 has a second sleeve portion 392 at its end near the second support part, and both second sleeve portions 392 are rotatably sleeved on the fourth connecting rod 174; both fourth movable rods 390 are also hinged to the hinge assembly 310, thereby allowing the second movable mechanism 300 to fold or extend between the first and second support parts on both sides. In this embodiment, the second movable mechanism 300 and the first movable mechanism 200 cooperate to enable the first support portion and the second support portion on both sides to move relatively in a stable manner, so as to retract or expand.
[0032] The moving mechanism is located at the bottom of the foldable stroller frame in this embodiment, on the side where the second movable mechanism 300 is located, to achieve rolling contact between the bottom of the foldable stroller frame and the ground. In this embodiment, the moving mechanism mainly includes a first moving component 410 and a second moving component 420. The first moving component 410 mainly includes two casters, which are respectively mounted on the second connecting members 160 at one end of the first support rod 110 and the second support rod 120, and can be used for turning and moving the stroller; the second moving component 420 has two rollers 425 on both sides to cooperate with the casters for movement.
[0033] One specific working method of this embodiment is as follows: When the foldable stroller frame of this embodiment is needed for outdoor strolling of an infant, the two first movable components on the first movable mechanism 200 are extended, and the second movable mechanism 300 is extended, so that the first and second support parts on both sides are relatively translated and unfolded; then, the infant bassinet, crib, or stroller seat is installed between the upper parts of the first and second support parts on both sides; then the infant can be strolled outdoors using the moving mechanism; when the foldable stroller frame of this embodiment needs to be stored, the two first movable components on the first movable mechanism 200 are folded, and the second movable mechanism 300 is folded, so that the first and second support parts on both sides are relatively translated and folded, so that the foldable stroller can be conveniently stored, occupying less space, while the moving mechanism can still be used to move the foldable stroller in the folded state.
[0034] In this embodiment, the foldable stroller frame is provided with a support mechanism having a first support part and a second support part, and a first movable mechanism 200 and a second movable mechanism 300 are provided between the first support part and the second support part; the two first movable components on both sides of the first movable mechanism 200 and one end of the first support part and the second support part form a placement space for the baby bassinet; and a moving mechanism is provided on the first support part and the second support part, and at the end where the second movable mechanism 300 is located; by relying on the folding and extension of the first movable components and the second movable mechanism 300, the relative translational movement of the first support part and the second support part on both sides is realized to fold and unfold, so that the moving mechanism can still be used for moving the foldable stroller frame in the folded state, which solves the problem that the folding steps of large foldable strollers in the prior art are cumbersome, the volume is still large after folding, and it is inconvenient to move.
[0035] Furthermore, in this embodiment, a fifth connecting rod 191 is provided between the middle of the first support rod 110 and the middle of the second support rod 120; and a sixth connecting rod 192 is provided between the middle of the third support rod 130 and the middle of the fourth support rod 140. The fifth connecting rod 191 and the sixth connecting rod 192 are used to install a baby cradle, crib, or stroller seat on the stroller frame. In one or more other embodiments, a baby cradle, crib, or stroller seat can also be installed via the first connecting rod 151 and the second connecting rod 152.
[0036] Furthermore, such as Figure 1 , Figure 7 , Figure 8As shown, in this embodiment, each of the four first connecting members 150 of the support mechanism 100 is provided with a first slot 153. The first slot 153 is located on the side of the first connecting member 150 away from the first support rod 110, the second support rod 120, the third support rod 130, or the fourth support rod 140. An operating lever 600 is inserted into the two first slots 153 on the second support part; a stop bar 700 is inserted into the two first slots 153 on the first support part. The operating lever 600 is located on the third support rod 130 and the fourth support rod 140, and faces outwards when the stroller is unfolded. The operating lever 600 is used by the operator to push or drag the stroller. The operating lever 600 mainly includes a fifth movable lever 610, which has a U-shaped structure with an open side and a closed side. Two first movable joints 620 are provided at both ends of the open side of the fifth movable lever 610. The first movable joint 620 mainly includes a first movable member 621 and a second movable member 622. One end of the first movable member 621 and the second movable member 622 are rotatably connected, and an adjustment button 625 is provided at the connection between the first movable member 621 and the second movable member 622. The adjustment button 625 is internally connected to a locking tooth structure 626. Thus, when the adjustment button 625 is pressed, the locking tooth structure 626 becomes non-engaged, and the angle between the first movable member 621 and the second movable member 622 can be freely adjusted. When the adjustment button 625 is released, the locking tooth structure 626 becomes engaged, and the first movable member 621 and the second movable member 622 can remain relatively fixed. The other end of the first movable member 621 is provided with a plug-in part 623, which is used to insert the end of the fifth movable rod 610 on the open side. The other end of the second movable member 622 is provided with a first insert rod 624, which is inserted into the first slot 153 provided on the first connector 150, so that the operating rod 600 is detachably mounted on the support mechanism 100. Meanwhile, a stop bar 700 is mounted on the first support rod 110 and the second support rod 120, and faces outwards when the stroller is unfolded; the stop bar 700 is used to protect the baby bassinet above the support mechanism 100. In this embodiment, the stop bar 700 adopts a structural design that is roughly the same as the operating lever 600, so on the one hand, the operating lever 600 and the stop bar 700 on the support mechanism 100 can be interchanged; on the other hand, it also allows the stroller in this embodiment to be pushed or dragged in both directions, making it more convenient for the operator to move it. In addition, in this embodiment, a second slot 627 is provided on the first movable joint 620 of the operating lever 600 near the middle of the stroller frame; and a first canopy bracket 510 is inserted through the second slot 627. The first canopy bracket 510 is roughly U-shaped, and is located above the second support part. The two ends of the open side of the first canopy bracket 510 are respectively inserted into the second slot 627 above the third support rod 130 and the fourth support rod 140.Conversely, a second canopy bracket 520 is provided on the stop bar 700, and the second canopy bracket 520 is inserted above the first support. The first canopy bracket 510 and the second canopy bracket 520 can be folded and unfolded together with the main structure of the stroller frame, so that a retractable canopy can be provided between the first canopy bracket 510 and the second canopy bracket 520.
[0037] Furthermore, such as Figure 1 , Figure 8 , Figure 9 As shown in the figure, in this embodiment, both ends of the first connecting rod 151 and the second connecting rod 152 of the support mechanism 100 are provided with connecting sleeves 156. A sliding buckle 157 is provided on the outside of the connecting sleeve 156, and a sliding locking member that cooperates with the sliding buckle 157 is provided inside the connecting sleeve 156. By pushing the sliding buckle 157, the first connecting rod 151, the second connecting rod 152 and the first connecting members 150 at both ends can be relatively fixed and separated, thereby realizing the detachable installation of the first connecting rod 151 and the second connecting rod 152, which facilitates the assembly and disassembly process of the stroller frame.
[0038] Furthermore, in this embodiment, sliding portions 158 are provided on the two first connecting members 150 above the second support rod 120 and the third support rod 130. The sliding portions 158 are connected to the first movable component between the second support rod 120 and the third support rod 130, and the sliding portions 158 are slidably engaged with the remaining parts of the first connecting members 150, and can slide and separate from each other. Auxiliary slide rails 180 are provided on the sides of the second support rod 120 and the third support rod 130. The sliding part 158 has an opening on one side and is slidably fitted onto the auxiliary slide rail 180. A push-lock 159 is provided inside the opening of the sliding part 158. When the push-lock 159 moves towards the second support rod 120 or the third support rod 130, the inner side of the push-lock 159 abuts against the auxiliary slide rail 180, keeping the sliding part 158 fixed. This also keeps the first movable component between the second support rod 120 and the third support rod 130 fixed. When the push-lock 159 moves away from the second support rod 120 or the third support rod 130, the inner side of the push-lock 159 disengages from the auxiliary slide rail 180, allowing the sliding part 158 to slide up and down along the auxiliary slide rail 180. This allows the first movable component between the second support rod 120 and the third support rod 130 to rise and fall, making it convenient for the baby to get on or off the stroller from one side.
[0039] Furthermore, such as Figure 1 , Figure 10As shown in the illustration, in this embodiment, the first movable component is further provided with a first auxiliary movable rod 240. Furthermore, the first hinge member 210 is symmetrically provided with two third hinge holes 213 and two fourth hinge holes 214 on both sides. The first movable rod 220, the second movable rod 230, and the first auxiliary movable rod 240 are all provided with hinge holes at both ends. The hinge holes at one end of the first movable rod 220 and the second movable rod 230 are hinged to the third hinge hole 213 on the first hinge member 210 through a hinge shaft. The hinge holes at the other end of the first movable rod 220 and the second movable rod 230 are hinged to the first hinge hole 154 on the first connecting member 150 through a hinge shaft. The first auxiliary movable rod 240 is hinged at one end to the fourth hinge hole 214 on the first hinge member 210 through a hinge shaft, and at the other end to the second hinge hole 155 on the first connecting member 150 through a hinge shaft (not shown in the figure). By setting the first auxiliary movable rod 240, which is parallel to the first movable rod 220 and the second movable rod 230 and can rotate synchronously, the structure of the first movable mechanism 200 is made more robust and stable. Simultaneously, two first guide grooves 212 are symmetrically arranged on both sides of the first hinge member 210, and the first guide grooves 212 are generally curved. Furthermore, a socket is provided at the end of the first movable rod 220 and the second movable rod 230 that connects to the first hinge member 210, and a pin (not shown in the figure) is provided in the socket. The pin is slidably disposed within the first guide groove 212. By providing the first guide grooves 212, the first movable rod 220 and the second movable rod 230 can move along a predetermined path during rotation and folding, avoiding deviation of the first movable rod 220 and the second movable rod 230 during rotation due to differences in the fitting precision between different components, which would affect the normal folding of the stroller. In addition, in this embodiment, two recessed openings 211 are symmetrically arranged on both sides of the first hinge member 210. When the first movable rod 220 and the second movable rod 230 are rotated and folded, the first hinge 210 will move toward the side where the second movable mechanism 300 is located. The setting of the recess 211 provides rotation space for the first movable rod 220 and the second movable rod 230, and avoids the first movable rod 220 and the second movable rod 230 being obstructed by the first hinge 210 when rotating and folding.
[0040] Furthermore, in this embodiment, plug-in card holders 250 are provided on both first movable rods 220 and both second movable rods 230. The plug-in card holders 250 are provided with snap-fit grooves, which can be used to detachably install some other auxiliary accessories on the stroller.
[0041] Furthermore, such as Figures 11-14As shown in the diagram, in this embodiment, the hinge assembly 310 mainly includes a seventh connecting rod 320 and bidirectional hinge seats 330 disposed on both sides of the seventh connecting rod 320. The bidirectional hinge seats 330 have openings on both sides, each provided with a fifth hinge hole 331. The fifth hinge hole 331 is hinged to either the third movable rod 380 or the fourth movable rod 390 on either side via a hinge shaft, thus positioning the bidirectional hinge seat 330 between the third movable rod 380 and the fourth movable rod 390, allowing it to rotate relative to the third movable rod 380. The seventh connecting rod 320 is connected between two bidirectional hinge seats 330. The seventh connecting rod 320 is hollow inside and has a double-headed connector 321 slidably embedded therein. The interior of the bidirectional hinge seat 330 is connected to the interior of the seventh connecting rod 320. The ends of the third movable rod 380 and the fourth movable rod 390 are provided with perforated gears 332. The center hole of the perforated gear 332 is rotatably sleeved on the hinge shaft passing through the fifth hinge hole 331. A gear side insertion hole 333 is provided on the perforated gear 332 at a position off-center from the center. At the same time, a rotary lock 322 is rotatably provided in the middle of the seventh connecting rod 320. The rotary lock 322 mainly includes a pull ring 323 and a rotating plate 3. 24. The pull ring 323 is hinged to the side of the rotating plate 324 away from the seventh connecting rod 320. The rotating plate 324 is rotatably mounted on the middle of the seventh connecting rod 320 through the hinge hole and hinge shaft in the middle. Two zigzag-shaped slide grooves 325 are also provided on both sides of the rotating plate 324. A slider (not shown in the figure) is slidably embedded in the zigzag-shaped slide groove 325. The other end of the slider passes through the slide groove on the surface of the seventh connecting rod 320 and enters the interior of the seventh connecting rod 320, and is hinged to one end of the double-ended plug 321. The other end of the double-ended plug 321 faces the two-way hinge seats 330 on both sides and has two plugs that are adapted to the gear side plug holes 333. Therefore, in this embodiment, when the rotating plate 324 is rotated so that the line connecting the two points furthest from the center of the rotating plate 324 in the zigzag groove 325 is parallel to the seventh connecting rod 320, the double-ended connector 321 is pushed to both sides, and the other end of the double-ended connector 321 is inserted into the gear-side insertion hole 333 of the perforated gear 332, restricting the rotation of the perforated gear 332, thereby preventing the second movable mechanism 300 from folding, and keeping the entire stroller stably unfolded and unable to be folded; when the rotating plate 324 is rotated so that the line connecting the two points furthest from the center of the rotating plate 324 in the zigzag groove 325 gradually deviates from the direction of the seventh connecting rod 320, the double-ended connector 321 is pushed towards the middle, and the other end of the double-ended connector 321 is pulled out from the gear-side insertion hole 333 of the perforated gear 332, releasing the restriction on the rotation of the perforated gear 332, thereby allowing the second movable mechanism 300 to be folded, so as to facilitate the folding of the entire stroller.In one or more embodiments, a spring may be provided between one end of the double-ended connector 321 that extends into the interior of the seventh connecting rod 320 and the inner wall of the seventh connecting rod 320, so that when the double-ended connector 321 needs to be pushed to both sides to engage the perforated gear 332, the spring extension force can be used to make the operation more convenient.
[0042] Furthermore, in this embodiment, a second auxiliary movable rod 340 is also provided between the hinge assembly 310 and the second connecting member 160 or the third connecting member 170 on both sides. The two ends of the second auxiliary movable rod 340 are hinged to the hinge assembly 310 and the second connecting member 160 or the third connecting member 170 respectively through mutually cooperating hinge shafts and hinge holes. By providing a second auxiliary movable rod 340 that is parallel to and can rotate synchronously with the third movable rod 380 and the fourth movable rod 390, the structure of the second movable mechanism 300 is made more robust and its rotation more stable. Specifically, in this embodiment, a hinge hole is provided at one end of the second auxiliary movable rod 340 that connects to the second connecting member 160 or the third connecting member 170 on both sides, and hinge plates with hinge holes are also provided on the second connecting member 160 and the third connecting member 170. The hinge plates are hinged to one end of the second auxiliary movable rod 340 through a hinge shaft (not shown in the figure) passing through both.
[0043] Furthermore, in this embodiment, a U-shaped connecting rod 382 is provided between each of the two third movable rods 380 and the two fourth movable rods 390. The U-shaped connecting rod 382 can not only improve the structural stability of the second movable mechanism 300, but also be used to detachably install some other auxiliary accessories on the stroller.
[0044] Furthermore, such as Figure 1 , Figure 15As shown in the diagram, in this embodiment, the second moving component 420 mainly consists of a rotating shaft 421, a fourth connecting member 423, and rollers 425. Two fourth connecting members 423 are respectively disposed on the third support rod 130 and the fourth support rod 140 near the end of the third connecting member 170. The rotating shaft 421 rotatably passes through the fourth connecting members 423 on both sides, and two rollers 425 are disposed on both ends of the rotating shaft 421 located outside the fourth connecting members 423. A foot pedal 426 is disposed in the middle of the rotating shaft 421, which is used for braking the stroller. The foot pedal 426 has an arc-shaped design, and anti-slip strips 427 are provided on both sides of the foot pedal 426, allowing braking from multiple angles. Furthermore, in this embodiment, the first hinge 210 has a certain width. When the first movable rod 220 and the second movable rod 230 are fully rotated and folded, the first hinge 210 abuts against the inner side of the support rods on both sides, forming a limit. This prevents the first moving component 410 of the moving mechanism and the roller 425 from colliding due to being too close, allowing the first moving component 410 and the roller 425 to maintain an appropriate distance, thus enabling the stroller to move easily even when folded. Next, in this embodiment, the distance between the two rollers 425 is greater than the distance between the two casters, allowing the rollers 425 and the first moving component 410 to be staggered axially, avoiding collisions. In one or more other embodiments, the two rollers 425 and the two casters can also adopt different staggering methods, such as the distance between the two rollers 425 being less than the distance between the two casters. Additionally, as... Figure 6 As shown in the figure, in this embodiment, a first snap button 161 and a first locking groove 162 are also provided on the second connector 160, and a locking structure (not shown in the figure) is provided between the second connector 160 and the first moving component 410 below it. The locking structure has a first locking block 164 that is linked to the first snap button 161. When the stroller is working normally, the first locking block 164 is locked in the first locking groove 162, so that the first moving component 410 is installed below the second connector 160; when it is necessary to remove the first moving component 410, the first locking block 164 can be disengaged from the first locking groove 162 by pressing the first snap button 161, so that the first moving component 410 can be removed from below the second connector 160.
[0045] Example 2
[0046] Based on the above embodiments, a second embodiment is provided below as a further improvement.
[0047] Please see Figures 16-21In the second embodiment, the structure of the support mechanism 100, the first movable mechanism 200 and the moving mechanism are roughly the same as those in the first embodiment; the second embodiment mainly improves the canopy structure on the second movable mechanism 300 and the support mechanism 100, and sets up a shelf 800.
[0048] like Figure 16 As shown in the diagram, in the second movable mechanism 300 of this embodiment, both the third movable rod 380 and the fourth movable rod 390 are U-shaped structures with an open side and a closed side. The open side of the third movable rod 380 has a first sleeve portion 381 at both ends, which is rotatably sleeved on the third connecting rod 163. The open side of the fourth movable rod 390 has a second sleeve portion 392 at both ends, which is rotatably sleeved on the fourth connecting rod 174. Simultaneously, the hinge assembly 310 hinges the closed sides of the third movable rod 380 and the fourth movable rod 390 on both sides, thereby allowing the second movable mechanism 300 to fold or extend.
[0049] like Figures 18-21 As shown, the structure of the hinge assembly 310 in this embodiment differs from that in the previous embodiment. The hinge assembly 310 in this embodiment mainly includes a fifth hinge member 350, a sixth hinge member 360, and a seventh hinge member 370. The fifth hinge member 350 is approximately circular in shape, with a first pivot hole 351 near its center and a sliding groove 352 in its middle. The sixth hinge member 360 has one approximately circular plate shape and the other approximately strip-shaped plate shape. The circular side has a second pivot hole 362 near its center and a limiting opening 363 at its edge; the strip-shaped side has two screw holes for connection with the third movable rod 380. The seventh hinge member 370 has a structure largely the same as the sixth hinge member 360 and is used to connect with the fourth movable rod 390. Furthermore, a pivot is provided passing through the first pivot hole 351 and the second pivot hole 362, so that when the third movable rod 380 and the fourth movable rod 390 extend or fold, the fifth hinge 350, the sixth hinge 360, and the seventh hinge 370 will rotate relative to each other around the pivot. Simultaneously, a sliding rod 353 slides through the sliding grooves 352 of the fifth hinge 350 on both sides, and a lifting ring 354 is sleeved in the middle of the sliding rod 353. Figure 20 As shown, when the stroller is unfolded, the fifth hinge 350, the sixth hinge 360, and the seventh hinge 370 rotate to the position where the limiting port 363 and the sliding groove 352 coincide. At this time, the sliding rod 353 is released and enters the limiting port 363, thereby restricting the relative rotation of the fifth hinge 350, the sixth hinge 360, and the seventh hinge 370, and locking the second movable mechanism 300; as shown. Figure 21As shown, when the stroller needs to be folded, the sliding rod 353 is first lifted by the lifting ring 354. The sliding rod 353 disengages from the limiting port 363, thereby releasing the restriction on the relative rotation of the fifth hinge 350, the sixth hinge 360 and the seventh hinge 370, and releasing the locking of the second movable mechanism 300. The fifth hinge 350, the sixth hinge 360 and the seventh hinge 370 can then rotate to a position where the limiting port 363 and the sliding groove 352 are misaligned, thus completing the folding of the stroller.
[0050] Furthermore, in this embodiment, the fifth hinge member 350 is symmetrically provided with second guide grooves 355 on both sides, and the second guide grooves 355 are generally arc-shaped; and, corresponding positions on the sixth hinge member 360 and the seventh hinge member 370 are also provided with pin holes 364, and pins are provided in the pin holes 364, which are slidably disposed within the second guide grooves 355. By providing the second guide grooves 355, pin holes 364, and pins, the sixth hinge member 360 and the seventh hinge member 370 can move along a set path when rotating and folding, avoiding the sixth hinge member 360 and the seventh hinge member 370 from shifting during rotation due to differences in the fitting precision between different components, thus preventing the stroller from folding normally.
[0051] like Figure 16 , Figure 17 As shown in the diagram, the canopy structure of this embodiment eliminates the first canopy support 510 and the second canopy support 520, replacing them with a third canopy support 530. The third canopy support 530 is mounted on the support mechanism 100 and mainly includes four L-shaped connecting rods 531, a third hinge member 533, and a fourth hinge member 534. The third hinge member 533 and the fourth hinge member 534 are hinged together via a central hinge hole and a hinge shaft; each of the third hinge member 533 and the fourth hinge member 534 has two insertion interfaces 532. One end of each L-shaped connecting rod 531 is inserted into an insertion interface 532, and the other end is inserted into a first connecting member 150, thereby enabling a detachable connection between the third canopy support 530 and the support mechanism 100. When the stroller is unfolded, the third canopy bracket 530 unfolds through the relative rotation of the third hinge 533 and the fourth hinge 534, and is then fixed to the support mechanism 100 by four L-shaped connecting rods 531. Since the first and second support parts on the stroller have a translational movable structure design, while the L-shaped connecting rods 531 of the third canopy bracket 530 have a rotational movable structure design, when the third canopy bracket 530 is inserted into the stroller frame body, the third canopy bracket 530 and the stroller frame body form a limiting lock with each other, thus preventing accidental folding under external impact. When the stroller is folded, simply remove the third canopy bracket 530, and the third canopy bracket 530 and the stroller can be folded separately.
[0052] A storage rack 800 is mounted on the second connecting rod 152 and faces outwards when the stroller is unfolded. A diaper cover or other components can be placed in the middle of the storage rack 800 for storing baby support items. The storage rack 800 mainly includes a ring rod 810, which is roughly rectangular in shape. One side of the ring rod 810 is rotatably mounted on the second connecting rod 152, allowing it to fold up when the stroller is closed, thus reducing the space occupied by the stroller.
[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A foldable stroller frame, characterized in that, Include: The support mechanism (100) has at least a first support part and a second support part; The first movable mechanism (200) is disposed between the first support part and the second support part; The second movable mechanism (300) is disposed between the first support and the second support, and is located on the opposite side from the first movable mechanism (200); The foldable stroller frame has an infant support component on the side near the first movable mechanism (200); a moving mechanism is provided on the side near the second movable mechanism (300) of the foldable stroller frame, the moving mechanism including a first moving component (410) provided on the first support and a second moving component (420) provided on the second support; and both the first movable mechanism (200) and the second movable mechanism (300) can be folded and extended, so that the first support and the second support can be moved relative to each other to retract and unfold.
2. The foldable stroller frame as described in claim 1, characterized in that, An operating lever (600) is provided on the side of the second support near the first movable mechanism (200), and the operating lever (600) and the second support are rotatably connected by a first movable joint (620); and a stop bar (700) is provided on the side of the first support near the first movable mechanism (200).
3. The foldable stroller frame as described in claim 2, characterized in that, The first movable joint (620) has at least a first movable member (621) and a second movable member (622); an adjustment button (625) is provided at the connection between the first movable member (621) and the second movable member (622), and a locking tooth structure (626) is connected inside the adjustment button (625); when the adjustment button (625) is pressed, the locking tooth structure (626) becomes non-engaged, and the first movable joint (620) can freely adjust its angle; when the adjustment button (625) is released, the locking tooth structure (626) becomes engaged, and the first movable joint (620) remains fixed.
4. The foldable stroller frame as described in claim 2, characterized in that, A first canopy bracket (510) is inserted into the operating lever (600); a second canopy bracket (520) is inserted into the stop bar (700).
5. The foldable stroller frame as described in claim 1, characterized in that, A third canopy support frame (530) is provided above the support mechanism (100). The third canopy support frame (530) has at least a plurality of L-shaped connecting rods (531). The L-shaped connecting rods (531) are inserted into the support mechanism (100), and the plurality of L-shaped connecting rods (531) are hinged to each other. The third canopy support frame (530) can be folded and unfolded by the relative rotation of the plurality of L-shaped connecting rods (531). When the third canopy support frame (530) is placed on the support mechanism (100) in the unfolded state, the third canopy support frame (530) and the support mechanism (100) can be mutually limited.
6. The foldable stroller frame as described in claim 1, characterized in that, The first movable mechanism (200) has at least two first movable components; the first movable component includes a first movable rod (220) hinged to the first support and a second movable rod (230) hinged to the second support; the first movable rod (220) and the second movable rod (230) are hinged together by a first hinge (210).
7. The foldable stroller frame as described in claim 6, characterized in that, The first hinge (210) is provided with a first guide groove (212); the first movable rod (220) and the second movable rod (230) are both provided with insertion holes, and the insertion holes are provided with pins, which are slidably disposed in the first guide groove (212).
8. The foldable stroller frame as described in claim 1, characterized in that, The second movable mechanism (300) has at least a third movable rod (380) and a fourth movable rod (390); the third movable rod (380) is rotatably mounted on the first support; the fourth movable rod (390) is rotatably mounted on the second support; and the third movable rod (380) and the fourth movable rod (390) are hinged together by a hinge assembly (310).
9. The foldable stroller frame as described in claim 8, characterized in that, The hinge assembly (310) has at least a seventh connecting rod (320) and two-way hinge seats (330) disposed on both sides of the seventh connecting rod (320); the two-way hinge seats (330) are disposed between the third movable rod (380) and the fourth movable rod (390), and are hinged to the perforated gears (332) disposed at the ends of the third movable rod (380) and the fourth movable rod (390) on both sides through a fifth hinge hole (331) and a hinge shaft; a double-headed plug (32) is slidably disposed inside the seventh connecting rod (320). 1); and a gear-side insertion hole (333) adapted to the double-headed connector (321) is provided on the perforated gear (332); and a rotary lock (322) is rotatably provided on the seventh connecting rod (320), and a zigzag groove (335) is provided on both sides of the rotary lock (322), and a slider is slidably embedded in the zigzag groove (335), and the other end of the slider passes through the groove on the surface of the seventh connecting rod (320) and enters the interior of the seventh connecting rod (320), and is hinged to the double-headed connector (321).
10. The foldable stroller frame as described in claim 8, characterized in that, The hinge assembly (310) has at least a fifth hinge (350), a sixth hinge (360), and a seventh hinge (370); the sixth hinge (360) is connected to the third movable rod (380); the seventh hinge (370) is connected to the fourth movable rod (390); the fifth hinge (350), the sixth hinge (360), and the seventh hinge (370) are rotatably connected by a pivot.
11. The foldable stroller frame as described in claim 10, characterized in that, Both the sixth hinge (360) and the seventh hinge (370) are provided with limiting ports (363); the fifth hinge (350) is provided with a sliding groove (352), and a sliding rod (353) is slidably disposed in the sliding groove (352); when the second movable mechanism (300) extends, the limiting port (363) and the sliding groove (352) can rotate to the overlapping position, so that the sliding rod (353) enters the limiting port (363).
12. The foldable stroller frame as described in claim 10, characterized in that, The fifth hinge (350) is provided with a second guide groove (355); the sixth hinge (360) and the seventh hinge (370) are both provided with pin holes (364), and a pin is provided in the pin hole (364), and the pin is slidably disposed in the second guide groove (355).
13. The foldable stroller frame as described in any one of claims 1-12, characterized in that, The first moving component (410) has at least two casters; the second moving component (420) has at least a rotating shaft (421), with rollers (425) on both sides of the rotating shaft (421), and the rollers (425) and the casters are arranged alternately along the axial direction; and a foot pedal (426) is provided on the rotating shaft (421) of the second moving component (420).
14. The foldable stroller frame as described in any one of claims 1-12, characterized in that, The first movable mechanism (200) is provided with a protective fence (280), and the protective fence (280) is connected to the first movable mechanism (200) through a plug-in snap-fit connector (290) and a plug-in snap-fit card holder (250); the plug-in snap-fit connector (290) is provided with a snap-fit block (292), the snap-fit block (292) is provided with a slot (298), the side wall of the snap-fit block (292) is provided with a second snap-fit block (294), and the plug-in snap-fit connector (290) is provided with a second snap-fit button (296) that is linked with the second snap-fit block (294); the socket on the plug-in snap-fit card holder (250) is adapted to the snap-fit block (292), the socket is provided with a second snap-fit groove adapted to the second snap-fit block (294), and a snap-fit strip adapted to the slot (298).