A child's pushchair having increased seating space

Abstract

The utility model discloses a child's pram that can increase the space of riding belongs to child's pram technical field, including the frame, the four around of frame all are provided with the double -row wheel for stabilizing movement, and have the push rod of tilting fixed in one side of frame for pushing the frame, the horizontal of having the pivot sleeve on the frame, and be provided with main seat on the pivot sleeve, the both sides of pivot sleeve all are fixed with the protective cover. The utility model discloses through setting adjustment assembly, through the rotation of one group or the rotation of two groups of big runner control shaft lever in pivot sleeve, and then the vice seat of shaft lever both ends unfolds or resets action, during this period, the ratchet and pawl of synchronous rotation with the shaft lever are under the abutting cooperation of compression spring, realize reverse limit measure to the shaft lever under the unfolding state, to prevent the reverse rotation of two groups of vice seat on the shaft lever when unfolding, improve the stability of two groups of vice seat after increasing the space of riding.

Description

Technical Field

[0001] This utility model belongs to the field of children's stroller technology, and in particular relates to a children's stroller that can increase seating space. Background Technology

[0002] Strollers are travel tools designed specifically for infants and toddlers, and are also important auxiliary products in mother and baby shopping scenarios. They are mainly divided into reclining, sitting, reclining / sitting and sitting-back, and multi-purpose strollers. Traditional strollers are mostly single-seat models. Considering family expenses, traditional single-seat strollers cannot increase the seating space and cannot meet the cost-saving needs of families with multiple children. This greatly reduces the applicability of strollers and will directly affect the sales volume of strollers in the future. Utility Model Content

[0003] The purpose of this invention is to provide a stroller that increases seating space. It employs an adjustment mechanism where rotating one or both sets of large rotating wheels controls the rotation of a shaft within a rotating sleeve. This causes the secondary seats at both ends of the shaft to unfold or reset. During this process, a ratchet and pawl, rotating synchronously with the shaft, engage with a compression spring to restrict the shaft in the unfolded state, preventing the two sets of secondary seats on the shaft from rotating in opposite directions. This improves the stability of the unfolded secondary seats after increasing seating space, thus solving the aforementioned technical problem.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A stroller that can increase the seating space includes a frame, with double rows of wheels for stable movement on all four sides of the frame, and a push rod fixed at an angle on one side of the frame for pushing the frame. A pivot sleeve is horizontally placed on the frame, and a main seat is set on the pivot sleeve. Protective covers are fixed on both sides of the pivot sleeve, and an adjustment component for increasing the seating space of the main seat is set inside the protective cover. The adjustment component includes a shaft that rotates within the pivot sleeve and the protective cover, and large rotating wheels are fixed at both ends of the shaft for rotating the shaft. Ratchets are sleeved on both sides of the shaft near the protective cover, and pawls that rotate with the protective cover are engaged on the ratchet. A compression spring that is fixed with the protective cover is fixed on the outer side of the pawl, and a lever for unlocking the pawl is fixed on the inner side of the pawl.

[0005] Preferably, the frame is provided with secondary seats of the same specifications on both sides near the main seat, and the main seat is connected to the main screw seat on the rotating shaft sleeve by screw head.

[0006] Preferably, the two sets of auxiliary seats are connected by screw heads to the auxiliary screw seats at both ends of the shaft, and both the main seat and the two sets of auxiliary seats adopt an airbag protective pad design.

[0007] Preferably, the main seat and the two sets of auxiliary seats are all horizontally equipped with a limiting guard plate to prevent them from falling, and the edges of the main seat and the two sets of auxiliary seats are all wrapped with flexible silicone strips.

[0008] Preferably, positioning plates are fixed on both sides of the frame near the axle, and positioning screws are threaded onto the positioning plates, with a small wheel fixed to the bottom of the positioning screws.

[0009] Preferably, both ends of the shaft are provided with threaded holes that are threaded to the positioning screw, and the front box is fixed at an angle to the side of the frame near the push rod.

[0010] Preferably, a rear box is horizontally fixed on the other side of the frame, and the upper box is fixed to the auxiliary screw seat after the two sets of auxiliary seats are replaced by screw threads.

[0011] The beneficial effects of this utility model are as follows: By setting an adjustment component, this utility model controls the rotation of the shaft within the rotating sleeve by rotating one or two sets of large rotating wheels simultaneously. Subsequently, the auxiliary seats at both ends of the shaft unfold or reset. During this period, the ratchet and pawl, which rotate synchronously with the shaft, implement reverse restriction measures on the shaft in the unfolded state under the tight cooperation of the compression spring, so as to prevent the two sets of auxiliary seats on the shaft from rotating in opposite directions when unfolded, thereby improving the unfolding stability of the two sets of auxiliary seats after the seating space is increased.

[0012] This utility model, by setting a lever frame, allows the ratchet and pawl to be unlocked when the two sets of auxiliary seats need to be reset, thus satisfying the reset requirements of the two sets of auxiliary seats and making it convenient to use.

[0013] This utility model features a main screw seat and screw head for easy and quick assembly / disassembly of the main seat, and two sets of auxiliary screw seats and screw heads for easy and quick assembly / disassembly of the two sets of auxiliary seats, allowing for flexible combinations. Additionally, a limiting guard plate provides protection for children sitting in the main seat and the two sets of auxiliary seats to prevent them from falling.

[0014] This invention uses a positioning plate and a positioning screw. After the small rotating wheel rotates in both directions, the positioning screw is controlled to move up and down within the positioning plate and is screwed into or out of the threaded hole to achieve secondary limiting measures at both ends of the shaft, ensuring the stability of the two sets of auxiliary seats on the shaft after unfolding.

[0015] This invention, by setting up a front box and a rear box, not only increases the child's riding space but also increases the storage space of the stroller, meeting the storage needs of children's daily necessities when traveling.

[0016] This invention, by setting up an upper box, allows for the replacement of two upper boxes when two sets of secondary seats are not needed, thereby further increasing the storage space of the stroller. Attached Figure Description

[0017] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 This is an initial structural diagram of the present invention; Figure 4 Side view of the box body in the overall structure of this utility model with a different state; Figure 5 This is a partially exploded view of the overall structure of this utility model; Figure 6 This is a partial exploded view from below of the structure of the adjustment component of this utility model.

[0018] In the diagram: 1. Frame; 2. Double-row wheels; 3. Push rod; 4. Main seat; 5. Rotary axle sleeve; 6. Protective cover; 7. Axle; 8. Large rotating wheel; 9. Ratchet; 10. Pad; 11. Compression spring; 12. Shift lever bracket; 13. Passenger seat; 14. Main screw seat; 15. Secondary screw seat; 16. Screw head; 17. Limiting guard plate; 18. Positioning plate; 19. Positioning screw; 20. Small rotating wheel; 21. Threaded hole; 22. Front housing; 23. Rear housing; 24. Upper housing. Detailed Implementation

[0019] In the following description, an embodiment of the present invention, which increases seating space, will be described with reference to the accompanying drawings.

[0020] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0021] Appendix to this instruction manual Figure 1-6 The figures are schematic diagrams to illustrate the concept of this utility model, showing the shapes of the various parts and their interrelationships. Please note that, to clearly demonstrate the structure of the components in the embodiments of this utility model, the figures are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0022] Example 1: A stroller that increases seating space includes a frame 1, with double-row wheels 2 arranged around the frame 1 for stable movement, and a push rod 3 fixed at an angle on one side of the frame 1 for pushing the frame 1. A pivot sleeve 5 is horizontally placed on the frame 1, and a main seat 4 is arranged on the pivot sleeve 5. Protective covers 6 are fixed on both sides of the pivot sleeve 5, and an adjustment component for increasing the seating space of the main seat 4 is arranged inside the protective cover 6. The adjustment component includes a shaft 7 that rotates within the pivot sleeve 5 and the protective cover 6, and large rotating wheels 8 are fixed at both ends of the shaft 7 for rotating the shaft 7. Ratchets 9 are sleeved on both sides of the shaft 7 near the protective cover 6, and pawls 10 that rotate with the protective cover 6 are engaged on the ratchet 9. A compression spring 11 that is fixedly engaged with the protective cover 6 is fixed on the outside of the pawl 10.

[0023] Specifically, this utility model, by setting an adjustment component, controls the rotation of the shaft 7 within the rotating sleeve 5 by rotating one or both sets of large rotating wheels 8 simultaneously. Consequently, the auxiliary seats 13 at both ends of the shaft 7 unfold or reset. During this period, the ratchet 9 and pawl 10, which rotate synchronously with the shaft 7, are engaged by the compression spring 11 to implement reverse restriction measures on the shaft 7 in the unfolded state, preventing the two sets of auxiliary seats 13 on the shaft 7 from rotating in opposite directions when unfolded, thus improving the unfolding stability of the two sets of auxiliary seats 13. During this process, the main seat 4 remains stationary. The two sets of auxiliary seats 13, when unfolded, expand the seating space of the main seat 4, meeting the needs of two or even three children to sit simultaneously, reducing family expenses, and is easy to operate.

[0024] The inner side of the pawl 10 is fixed with a lever 12 for unlocking the pawl 10, and the lever 12 adopts a U-shaped design and has an anti-slip sleeve in the middle.

[0025] Specifically, this utility model, by setting up a lever frame 12, allows the ratchet 9 and pawl 10 to be unlocked when the two sets of auxiliary seats 13 need to be reset, thus satisfying the reset requirements of the two sets of auxiliary seats 13. It is convenient to use. The anti-slip sleeve increases the coefficient of friction between the hand and the lever frame 12, thus playing an anti-slip role.

[0026] The frame 1 has identical secondary seats 13 on both sides near the main seat 4. The main seat 4 is threaded to the main screw seat 14 on the swivel sleeve 5 via screw head 16. The two sets of secondary seats 13 are threaded to the secondary screw seats 15 at both ends of the shaft 7 via screw head 16. Both the main seat 4 and the two sets of secondary seats 13 are designed with airbag protection pads.

[0027] Specifically, this utility model facilitates the quick assembly and disassembly of the main seat 4 by setting a main screw seat 14 and a screw head 16, and facilitates the quick assembly and disassembly of the two sets of auxiliary seats 13 by setting two sets of auxiliary screw seats 15 and screw heads 16, allowing for flexible combination. By adopting an airbag protective pad design, the riding comfort of the main seat 4 and the two sets of auxiliary seats 13 is improved.

[0028] The main seat 4 and the two sets of secondary seats 13 are all equipped with horizontally placed limit guards 17 to prevent them from falling off, and the edges of the main seat 4 and the two sets of secondary seats 13 are all wrapped with flexible silicone strips.

[0029] Specifically, this utility model provides a limiting guard plate 17 to protect children sitting in the main seat 4 and the two sets of secondary seats 13 from falling. The design of using flexible silicone strips to wrap the edges enhances the overall protective effect of the main seat 4 and the two sets of secondary seats 13 to prevent scratches to children.

[0030] Positioning plates 18 are fixed on both sides of the frame 1 near the axle 7, and positioning screws 19 are threadedly connected to the positioning plates 18. Small wheels 20 are fixed at the bottom of the positioning screws 19, and threaded holes 21 are opened on both ends of the axle 7 to be threaded and positioned with the positioning screws 19.

[0031] Specifically, this utility model, by setting a positioning plate 18 and a positioning screw 19, controls the positioning screw 19 to move up and down within the positioning plate 18 after the small rotating wheel 20 rotates in both directions. Through the threaded hole 21 opened on the circumference, the upward-moving positioning screw 19 is screwed into the threaded hole 21 to achieve a secondary limiting measure for both ends of the shaft 7, and the downward-moving positioning screw 19 is disengaged from the threaded hole 21 to achieve a limiting release measure for both ends of the shaft 7, ensuring the stability of the two sets of auxiliary seats 13 on the shaft 7 after unfolding, and making operation convenient.

[0032] Furthermore, the front box 22 is tilted and fixed on the side of the frame 1 near the push rod 3, and the rear box 23 is horizontally fixed on the other side of the frame 1. The upper box 24 is threadedly fixed to the auxiliary screw seat 15 after the replacement of the two sets of auxiliary seats 13 by the screw head 16.

[0033] Specifically, by setting up a front box 22 and a rear box 23, this utility model not only increases the child's seating space but also increases the storage space of the stroller, meeting the storage needs of children's daily necessities during outings. By setting up an upper box 24, when the two sets of auxiliary seats 13 are not in use, the screw heads 16 on the two sets of auxiliary seats 13 can be removed from the two sets of auxiliary screw seats 15, and then the two sets of upper boxes 24 with screw heads 16 can be replaced and screwed back into the two sets of auxiliary screw seats 15, further increasing the storage space of the stroller.

[0034] The specific usage process is as follows: First, rotate one or two sets of large rotating wheels 8 simultaneously, depending on the number of people. The large rotating wheels 8 drive the shaft 7 to rotate within the rotating shaft sleeve 5. The shaft 7 drives the auxiliary screw seats 15 at both ends to rotate to the upward position. At the same time, the two sets of ratchet wheels 9 also rotate synchronously with the shaft 7, forcing the two pawls 10 to perform a skipping action on the two sets of ratchet wheels 9, and performing frequency compression and release on the two sets of compression springs 11. The lever frame 12 also jumps along with the two pawls 10 that are performing the skipping action, applying a reverse limiting measure to the shaft 7 in the unfolded state. After the shaft 7 drives the auxiliary screw seats 15 at both ends to rotate into place, first rotate the two sets of small rotating wheels 20 respectively, driving the positioning screws 19 to move upward within the two sets of positioning plates 18 until... Two positioning screws 19 are moved upwards and screwed into the corresponding threaded holes 21 at both ends of the shaft 7. After the shaft 7 and the two sets of auxiliary seats 13 on it are fixed in place for a second time, the screw heads 16 on the main seat 4 are screwed into the main screw seat 14, and then the screw heads 16 on the two sets of auxiliary seats 13 are screwed into the two sets of auxiliary screw seats 15, so as to meet the needs of three children traveling at the same time. Then, by holding the push rod 3, the three children sitting on the frame 1 can be moved through the double row of wheels 2. Alternatively, the main seat 4 can be removed, leaving the two sets of auxiliary seats 13, and two children can be pushed to travel. This utility model sets an adjustment component, which controls the rotation of the shaft 7 in the rotating sleeve 5 by rotating one or both sets of large rotating wheels 8. Then, the auxiliary seats 13 at both ends of the shaft 7 unfold or reset accordingly. During this period, the ratchet 9 and pawl 10, which rotate synchronously with the shaft 7, are engaged by the compression spring 11 to reverse the rotation of the shaft 7 in the unfolded state. This prevents the two sets of auxiliary seats 13 on the shaft 7 from rotating in opposite directions when unfolded, thus improving the unfolding stability of the two sets of auxiliary seats 13. During this process, the main seat 4 remains stationary. The two sets of auxiliary seats 13, now in their unfolded positions, expand the seating space of the main seat 4, accommodating the needs of two or even three children simultaneously, reducing family expenses, and offering simple operation. Furthermore, this invention incorporates a lever 12. When the two sets of auxiliary seats 13 need to be reset, the lever 12 can be moved to unlock the ratchet 9 and pawl 10, satisfying the reset requirements of the two sets of auxiliary seats 13, making it convenient to use. The invention features a non-slip sleeve that increases the friction coefficient between the hand and the lever 12, thus preventing slippage. The main seat 4 is easily disassembled and assembled using a main screw seat 14 and screw head 16, and two sets of auxiliary screw seats 15 and screw heads 16 for easy disassembly and assembly of the two auxiliary seats 13, allowing for flexible configuration. An airbag protective pad design enhances the comfort of the main seat 4 and the two auxiliary seats 13. A limiting guard plate 17 provides protection for children sitting on the main seat 4 and the two auxiliary seats 13, preventing them from falling. Flexible silicone strips around the edges enhance the overall protective effect of the main seat 4 and the two auxiliary seats 13, preventing scratches to children.This utility model, by setting a positioning plate 18 and a positioning screw 19, controls the positioning screw 19 to move up and down within the positioning plate 18 after the small rotating wheel 20 rotates in both directions. Through the threaded holes 21 on the circumference, the upward-moving positioning screw 19 is screwed into the threaded holes 21 to achieve a secondary limiting measure at both ends of the shaft 7, while the downward-moving positioning screw 19 is disengaged from the threaded holes 21 to release the limiting measure at both ends of the shaft 7. This ensures the stability of the two sets of auxiliary seats 13 on the shaft 7 after unfolding, and facilitates operation. By designing a front box 22 and a rear box 23, this model not only increases the child's seating space but also enhances the stroller's storage space, meeting the storage needs for children's daily necessities during outings. Furthermore, by incorporating an upper box 24, when the two sets of secondary seats 13 are not in use, the screw heads 16 on the two sets of secondary screw seats 13 can be removed from the two sets of secondary screw seats 15, and then the upper box 24 with screw heads 16 can be replaced and screwed back into the two sets of secondary screw seats 15, further increasing the stroller's storage space.

[0035] In summary, this stroller, which increases seating space, utilizes an adjustment mechanism. By rotating one or both sets of large rotating wheels, the axle rotates within a rotating sleeve, causing the secondary seats at both ends of the axle to unfold or retract. During this process, a ratchet and pawl, rotating synchronously with the axle, engage with a compression spring to restrict the axle in the unfolded state, preventing the two secondary seats on the axle from rotating in opposite directions when unfolded. This improves the stability of the two secondary seats after the increased seating space is achieved.

[0036] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.

Claims

1. A stroller that increases seating space, comprising a frame (1), characterized in that: The frame (1) is provided with double rows of wheels (2) around its perimeter for stable movement, and a push rod (3) is fixed obliquely on one side of the frame (1) for pushing the frame (1). A pivot sleeve (5) is horizontally placed on the frame (1), and a main seat (4) is provided on the pivot sleeve (5). Protective covers (6) are fixed on both sides of the pivot sleeve (5), and an adjustment component for increasing the seating space of the main seat (4) is provided inside the protective cover (6). The adjustment component includes a mechanism that rotates on the pivot sleeve (5). The shaft (7) is located inside the protective cover (6), and large rotating wheels (8) are fixed at both ends of the shaft (7) for rotating the shaft (7). Ratchets (9) are fitted on both sides of the shaft (7) near the protective cover (6), and pawls (10) that rotate with the protective cover (6) are engaged on the ratchet (9). A compression spring (11) that is fixed with the protective cover (6) is fixed on the outside of the pawl (10), and a lever (12) that unlocks the pawl (10) is fixed on the inside of the pawl (10).

2. A stroller with increased seating space according to claim 1, characterized in that: The frame (1) is provided with secondary seats (13) of the same specifications on both sides near the main seat (4), and the main seat (4) is threadedly connected to the main screw seat (14) on the rotating bushing (5) by screw head (16).

3. A stroller with increased seating space according to claim 1, characterized in that: The two sets of auxiliary seats (13) are threadedly connected to the auxiliary screw seats (15) at both ends of the shaft (7) by screw heads (16), and the main seat (4) and the two sets of auxiliary seats (13) are all designed with airbag protective pads.

4. A stroller with increased seating space according to claim 1, characterized in that: The main seat (4) and the two sets of auxiliary seats (13) are all horizontally equipped with a limiting guard plate (17) for preventing them from falling, and the edges of the main seat (4) and the two sets of auxiliary seats (13) are all wrapped with flexible silicone strips.

5. A stroller with increased seating space according to claim 1, characterized in that: The frame (1) is fixed with positioning plates (18) on both sides near the axle (7), and positioning screws (19) are threaded onto the positioning plates (18). A small wheel (20) is fixed to the bottom of the positioning screws (19).

6. A stroller with increased seating space according to claim 1, characterized in that: Both ends of the shaft (7) are provided with threaded holes (21) that are threaded to the positioning screw (19), and the front box (22) is fixedly inclined on the side of the frame (1) near the push rod (3).

7. A stroller with increased seating space according to claim 1, characterized in that: The rear box (23) is horizontally fixed on the other side of the frame (1), and the upper box (24) is threadedly fixed to the auxiliary screw seat (15) after the replacement of the two sets of auxiliary seats (13) by the screw head (16).

Images