An infant safety device incorporating a retractable walking mechanism

Abstract

The application belongs to the technical field of baby safety products, and discloses a baby safety device integrated with a retractable walking mechanism, which comprises a baby safety device, a walking mechanism detachably connected to the bottom of the baby safety device, and an auxiliary assembly detachably connected to the side end of the baby safety device. When the pushing mode is switched, the first telescopic rod between the stretching supports widens the interval, the supports are installed at the bottom of the seat, the fixed shaft is clamped with the first clamping shaft and inserted into the spline lock walking mechanism, the handrail is unscrewed, the second clamping shaft is clamped into the bayonet, and the handrail is telescopic and adaptable to different parents. When the walking mechanism is not needed to be pushed, the spline is removed, the handrail is released from the position, and the walking mechanism can be disassembled. The seat can be fixed alone in the car. The second telescopic rod is pulled out to cooperate with the bottom plate, the seat is supported in the elevator to prevent tilting, the walking mechanism and the seat of the device can be disassembled and integrated, and the device has the functions of riding protection and pushing. The device does not need an additional stroller and is convenient to carry.

Description

Technical Field

[0001] This invention belongs to the field of infant safety products technology, specifically an infant safety device with an integrated retractable walking mechanism. Background Technology

[0002] Infant car seats are essential protective equipment for infants and toddlers traveling by car. Through their sophisticated internal structure and restraint system, they effectively cushion the enormous impact forces generated during vehicle movement, emergency braking, and accidental collisions, thereby dispersing and absorbing the impact energy and providing crucial life-saving protection for infants and toddlers. As an indispensable item for modern in-vehicle travel, their importance has been widely recognized, becoming an indispensable barrier to safeguarding the safety of infants and toddlers while traveling in vehicles.

[0003] Publication No. CN120156410A discloses an infant car seat safety belt positioning structure and an infant car seat, including a mounting base on the car seat body, a first support member and a second support member disposed on the mounting base, a limiting component and an unlocking component disposed on the mounting base; the first support member and the second support member respectively cooperate with the seat belts on both sides, and the first support member and the second support member can move relative to the mounting base to switch to an open position, and when in the open position, the first support member and the second support member together support the seat belts on both sides, so that the seat belts on both sides are arched and maintain a passage space between them and the back of the car seat body, and the first support member and the second support member can then be disengaged from the open position. This design maintains the space for the seat belts to be open for passage, preventing deformation of the seat belts during the infant's passage, and making it easier to use.

[0004] While the aforementioned technologies can maintain the space for the seat belt to be stretched out to avoid deformation of the seat belt during the process of infants and young children putting it on, making it easier to use, all car safety seats are fixed base structures without a walking or pushing structure, which cannot be adapted to daily walking scenarios. Users need to carry both the safety seat and the stroller at the same time, which is bulky to carry, takes up a lot of space when stored, and is cumbersome to disassemble and transport. Summary of the Invention

[0005] To address the issues raised in the background art, such as the need for users to carry both a car seat and a stroller, which are bulky to carry, take up a lot of space when stored, and are cumbersome to disassemble and transport, this invention provides an infant safety device with an integrated retractable walking mechanism.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a baby safety device with an integrated retractable walking mechanism, comprising a baby safety device, wherein a walking mechanism is detachably connected to the bottom of the baby safety device, and an auxiliary component is detachably connected to the side of the baby safety device; The infant safety device includes a seat, a turntable is detachably connected to the bottom of the seat, a base is rotatably connected to the bottom of the turntable via a rotating shaft, and a first slot is fixedly connected to the front end of the base; The walking mechanism includes a bracket, with rollers rotatably connected to the four corners of the bottom end of the bracket. Armrests are symmetrically rotatably connected to both ends of the seat via connecting shafts. A second locking shaft is fixedly connected to the inner wall of the connecting shaft. A fixed shaft is symmetrically fixedly connected to the inner wall of the bracket. A pair of first locking shafts corresponding to the fixed shafts and a pair of locking slots corresponding to the second locking shafts are symmetrically fixedly connected to both ends of the seat. After the fixed shaft engages with the first locking shafts, a spline is internally engaged. The auxiliary component includes a second slot, the bottom of which is engaged with a second telescopic rod, and the movable end of the second telescopic rod is fixedly connected to a base plate.

[0007] Preferably, a first telescopic rod is fixedly connected to the bracket, and the handrail is designed to be telescopically adjustable in both width and length.

[0008] Preferably, mounting plates are fixedly connected to three sides of the seat, and corresponding screw holes are opened on the turntable side and multiple mounting plates, with screws threaded into the screw holes.

[0009] Preferably, one end of the screw is fixedly connected to a knob, and the knob is a polygonal design with rounded corners.

[0010] Preferably, a side plate is fixedly connected to the side end of the base plate, a limit frame is fixedly connected to the top of the side plate, and a pedal is rotatably connected to the inner wall of the limit frame.

[0011] Preferably, the limiting frame is a U-shaped protective structure, and the height of both ends of the limiting frame is higher than the upper surface of the pedal.

[0012] Preferably, the armrest is attached to the surface of the connecting shaft, and the rotation angle is within the range of 0°-120°.

[0013] Preferably, the inner walls of both the first and second slots are provided with raised textures, and the fixed end of the second telescopic rod engages with the first or second slot.

[0014] Preferably, corresponding limiting grooves are provided around the turntable and the rotating shaft, and a pin is inserted into a pair of the limiting grooves.

[0015] Preferably, the telescopic structure of the armrest is the same as the telescopic structure of the suitcase handle.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When switching the pushing mode, this invention widens the distance between the first telescopic rods of the extension brackets. The brackets are installed at the bottom of the seat, and the fixed shaft and the first locking shaft are inserted into the spline to lock the walking mechanism. When the armrest is unscrewed, the second locking shaft is inserted into the slot for positioning. The armrest is retractable to adapt to different parents. When not pushing, the walking mechanism can be disassembled by removing the spline and releasing the armrest limit. The seat can be installed and fixed separately in a vehicle. The auxiliary component pulls out the second telescopic rod to cooperate with the base plate. The seat is supported in the elevator to prevent it from tipping over. The walking mechanism and seat of this device can be separated and integrated, which has both passenger protection and pushing functions. No additional cart is required, and it is easy to carry. Stability is ensured by the locking structure and auxiliary support, taking into account both passenger safety and the need for pushing travel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation of the seat and bracket of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the auxiliary components of the present invention; Figure 5 For the present invention Figure 4 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the infant safety device of the present invention; Figure 7 This is a schematic diagram of the walking mechanism of the present invention; Figure 8 This is a schematic diagram of a partial structure of the support frame of the present invention.

[0018] In the picture: 1. Baby safety equipment; 101. Seat; 102. Mounting plate; 103. Base; 104. Turntable; 105. First slot; 106. Screw; 107. Rotating shaft; 108. Limiting groove; 109. Pin; 2. Walking mechanism; 201. Bracket; 202. Roller; 203. Connecting shaft; 204. Armrest; 205. First locking shaft; 206. Fixed shaft; 207. Spline; 208. Second locking shaft; 209. Bayonet; 210. First telescopic rod; 3. Auxiliary components; 301. Second slot; 302. Second telescopic rod; 303. Base plate; 304. Side plate; 305. Limiting frame; 306. Pedal. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, the present invention provides an infant safety device with an integrated retractable walking mechanism, including an infant safety device 1, a walking mechanism 2 detachably connected to the bottom of the infant safety device 1, and an auxiliary component 3 detachably connected to the side of the infant safety device 1. The infant safety device 1 includes a seat 101, a turntable 104 is detachably connected to the bottom of the seat 101, a base 103 is rotatably connected to the bottom of the turntable 104 via a rotating shaft 107, and a first slot 105 is fixedly connected to the front end of the base 103. The walking mechanism 2 includes a bracket 201, with rollers 202 rotatably connected to the four corners of the bottom end of the bracket 201. The two ends of the seat 101 are symmetrically connected to armrests 204 via connecting shafts 203. The inner wall of the connecting shaft 203 is fixedly connected to a second locking shaft 208. The inner wall of the bracket 201 is symmetrically fixedly connected to a fixed shaft 206. The two ends of the seat 101 are symmetrically fixedly connected to a pair of first locking shafts 205 corresponding to the fixed shaft 206 and a pair of locking slots 209 corresponding to the second locking shaft 208. After the fixed shaft 206 engages with the first locking shaft 205, a spline 207 is internally engaged. The auxiliary component 3 includes a second slot 301, the bottom end of which is engaged with a second telescopic rod 302, and the movable end of the second telescopic rod 302 is fixedly connected to a base plate 303.

[0021] The first telescopic rod 210 is fixedly connected to the bracket 201, and the handrail 204 is designed to be telescopically adjustable in both width and length.

[0022] Using the above solution: When switching to the push-and-move mode, first extend the first telescopic rod 210 between the brackets 201 to effectively widen the overall spacing of the brackets 201, making it easier to clamp the bottom of the seat 101 into the middle of the brackets 201. Align and install the brackets 201 on the bottom of the seat 101. Precisely engage the fixing shaft 206 on the inner side of the brackets 201 with the first locking shafts 205 at both ends of the seat 101, and insert the spline 207 to complete the locking and fixing, ensuring the connection strength and structural stability of the walking mechanism 2 and the seat 101. Then, rotate the armrest 204 outward along the connecting shaft 203 to unfold it, so that the second locking shaft 208 on the inner side of the connecting shaft 203 engages with the slot 209 on the side of the seat 101, completing the angle positioning of the armrest 204. At the same time, the length and width of the armrest 204 can be adjusted according to usage needs to accommodate the push-and-move operation of parents of different heights. When no movement is required, simply remove the spline 207 for quick and easy movement. Separate the bracket 201 from the seat 101, release the assembly state of the walking mechanism 2, and then loosen the limiting structure of the second locking shaft 208 and the locking slot 209. Remove the armrest 204. At this time, the seat 101 can be removed and directly adapted for daily fixed installation in the car. In addition, the auxiliary component 3 equipped with the device can realize the temporary storage function. Pull the second telescopic rod 302 out from the second locking slot 301 and extend it together with the bottom plate 303 to form a stable support. When a person goes up or down the elevator alone, the bottom of the half-suspended seat 101 is supported, so that it is placed stably on the elevator, reducing the burden on parents and preventing the seat 101 from tipping over. The walking mechanism 2 and the seat 101 can be separated and integrated, which has both passenger protection and pushing functions. There is no need to purchase an additional stroller, reducing the carrying volume. The structure stability is improved by the locking connection and auxiliary support, taking into account both passenger safety and pushing travel needs.

[0023] like Figures 4 to 5 As shown, mounting plates 102 are fixedly connected to the three sides of the seat 101. The turntable 104 and multiple mounting plates 102 are provided with corresponding screw holes. Screws 106 are threaded into the screw holes. A knob is fixedly connected to one end of the screw 106. The knob is a polygonal design with rounded corners.

[0024] Using the above method: Place the seat 101 stably on the upper surface of the turntable 104, ensuring its position is strictly centered. This ensures that the screw holes on the multiple mounting plates 102 fixed to the three sides of the seat 101 are precisely and without deviation aligned with the corresponding screw holes pre-drilled around the turntable 104. Then, take out screws 106 that perfectly match the screw hole specifications and screw them sequentially and smoothly into the aligned screw holes. Tighten gradually using reliable threaded connections until the preset torque requirement is reached, thereby firmly and stably installing the seat 101 onto the turntable 104. This ingenious design not only enables convenient disassembly and assembly of seat 101, facilitating daily deep cleaning, thorough maintenance, or replacement of parts as needed, but also ensures the stability and reliability of the connection structure. In addition, the knob that is fixed to one end of screw 106 features a rounded polygonal design. This user-friendly rounded corner treatment effectively prevents users from accidentally scratching their fingers when manually turning the knob for tightening or disassembly due to the sharp edges of traditional knobs. This significantly improves the operational safety, comfort, and user experience of the entire installation and disassembly process.

[0025] like Figures 2 to 3 As shown, a side plate 304 is fixedly connected to the side end of the base plate 303, and a limit frame 305 is fixedly connected to the top of the side plate 304. A pedal 306 is connected to the inner wall of the limit frame 305 with damping rotation. The limit frame 305 is a U-shaped protective structure, and the height of both ends of the limit frame 305 is higher than the upper surface of the pedal 306.

[0026] Using the above solution: When parents need to use the second telescopic rod 302 to provide auxiliary support for the seat 101 while riding the elevator, they can insert the end of the second telescopic rod 302 into the pre-set first slot 105 on the side of the seat 101 to complete the initial fixation. Then, parents can manually rotate the pedal 306 outward from inside the limiting frame 305 to fully extend it to the horizontal working position. At this time, the user can step on the pedal 306 and apply downward pressure to drive the second telescopic rod 302 to gradually extend until its bottom end makes stable contact with the elevator car floor, forming an effective support structure and enhancing the overall stability of the equipment during elevator operation. The limiting frame 305 adopts a U-shaped protective structure, and the height of its two side frames is designed to be slightly higher than the upper surface of the pedal 306. When the pedal 306 is in the retracted position... When the pedal 306 is folded up and rotated inside the limiting frame 305, the frames on both sides can effectively wrap around and limit its movement from the left and right. This design can prevent the pedal 306 from shaking due to accidental rotation during the movement or storage of the device, preventing it from scratching the user or surrounding objects. It also ensures that the structure is compact when folded up and does not occupy additional external space of the device, thus maintaining the neat and simple appearance of the baby safety device 1. In addition, the pedal 306 and the limiting frame 305 adopt a damped rotation connection, so that the pedal 306 can obtain appropriate resistance when unfolding to the required angle or folding back, thereby maintaining a stable position and preventing the pedal 306 from loosening or shifting due to shaking of the device or slight collision, further improving the safety and reliability of use.

[0027] like Figures 4 to 7 As shown, the handrail 204 is fitted onto the surface of the connecting shaft 203, with a rotation angle ranging from 0° to 120°. The inner walls of the first slot 105 and the second slot 301 are both provided with raised textures. The fixed end of the second telescopic rod 302 engages with the first slot 105 or the second slot 301. The turntable 104 and the rotating shaft 107 are provided with corresponding limiting grooves 108 around their perimeters, and a pair of limiting grooves 108 are fitted with pins 109.

[0028] The above solution allows the handle 204 to rotate from 0° to 120°, which not only meets the angle adaptation requirements of different pushing postures but also avoids instability of the center of gravity due to excessive rotation angle, ensuring safe use. The limiting groove 108 and the pin 109 corresponding to the turntable 104 and the rotating shaft 107 form a flexible angle adjustment and locking mechanism. This design allows users to accurately adjust the rotation angle of the upper part of the equipment within a preset range according to actual usage needs. After adjusting to the appropriate position, simply inserting the pin 109 will securely lock the turntable 104 and the rotating shaft 107, effectively preventing the equipment from changing its posture due to accidental rotation during use, thus adapting to specific usage needs in different scenarios. At the same time, the raised texture on the inner wall of the first slot 105 and the second slot 301 significantly increases the roughness of the engaging contact surface, improving the static friction between the fixed end of the second telescopic rod 302 and the slot. This makes it less likely for the second telescopic rod 302 to slip or loosen due to vibration or external force after engagement, ensuring the stability of the connection point and enhancing the reliability of the overall structure.

[0029] Working principle and usage process of this invention: First, operators need to select the usage mode based on actual travel needs. The equipment can flexibly switch between three working modes: baby stroller, car child safety seat 101, and step elevator auxiliary support. The operation process for each mode is as follows. When the device needs to be used as a baby stroller, assemble and debug it according to the standard steps. First, manually widen the gap between the two side brackets 201 to leave sufficient assembly space and avoid interference or bumps during seat 101 installation. Then, place the main body of seat 101 smoothly into the middle of the two brackets 201, and slowly lower seat 101 to align with the installation reference. Ensure that the fixed shaft 206 at the bottom of seat 101 is precisely aligned and engaged with the first locking shaft 205 preset on the bracket 201 to form initial support and limit, preventing the seat 101 from shifting laterally. After completing the initial alignment, insert the matching special spline 207 into the corresponding alignment hole. Relying on the radial locking action of spline 207, the walking mechanism 2 and the... The seats 101 are rigidly locked together to eliminate assembly gaps and prevent the seats 101 from shaking or loosening during the push process. After the assembly and locking are completed, the armrests 204 are rotated outward along the connecting shaft 203. The rotation continues until the second locking shaft 208 at the end of the armrest 204 is fully embedded in the slot 209 on the bracket 201. The armrests 204 are quickly positioned and mechanically locked by the cooperation of the locking shaft and the slot 209 without the need for additional fasteners. Finally, the extension length and lateral width of the armrests 204 are flexibly adjusted according to the height, arm length and grip comfort requirements of the parents pushing the device to adapt to the operating habits of different users. After all the adjustment processes are completed, the device is assembled and can be pushed smoothly to meet the needs of short-distance outdoor travel. When the device needs to be placed inside a car as a child safety seat 101, a disassembly operation is required to separate the walking mechanism 2 from the seat 101 module. First, pull out the spline 207 at the connection point to release the locking connection between the walking mechanism 2 and the seat 101, eliminating the rigid constraint between them. Then, remove the bracket 201 assembly as a whole, detaching it from the main body of the seat 101. Next, release the limiting engagement between the second locking shaft 208 on the armrest 204 and the bracket 201 and locking slot 209, and directly remove the armrest 204. At this point, all stroller accessories, including the walking mechanism 2, bracket 201, and armrest 204, are separated. The seat 101 becomes an independent unit module. The operator can fix the seat 101 to the rear seat 101 of the car for children to use. If it is necessary to change the orientation of the seat 101 during the journey to accommodate different needs such as children sitting, viewing the scenery, or resting, the pin 109 at the connection between the turntable 104 and the rotating shaft 107 can be pulled out to release the angle lock. The turntable 104 can be manually rotated to adjust the seat 101 to the target orientation and angle. After the angle is adjusted to the correct position, the pin 109 is reinserted after aligning the limit groove 108 between the turntable 104 and the rotating shaft 107 to complete the angle fixation and prevent the seat 101 from rotating back on its own during the journey. When parents are traveling alone with an infant and need to use a stepped elevator, they can activate the auxiliary component 3 to improve the stability of the equipment on steps and prevent the risk of tipping over. The specific operation procedure is as follows: First, remove the second telescopic rod 302 of the auxiliary component 3 from its normal storage position, namely the second slot 301 on the bracket 201. Then, insert the top of the second telescopic rod 302 into the first slot 105 pre-set at the front of the seat 101 to achieve reliable fixation and establish a support connection point. Then, turn out the pedal 306 integrated on the second telescopic rod 302. When the parent steps on the pedal 306, it forms a force fulcrum, and the second telescopic rod 302 extends simultaneously, so that the base plate 303 connected to the bottom of the telescopic rod is stably supported on the elevator. On the surface of the steps, this structure can provide effective vertical auxiliary support for the front end of the seat 101 that extends outside the elevator steps, changing the overall center of gravity distribution, counteracting the overturning moment caused by suspension, and significantly reducing the safety risks of equipment center of gravity imbalance and forward tilting during elevator start-up, stopping, and lifting. After the elevator ride is over and no auxiliary support is needed, the components are stored in reverse order: first, the second telescopic rod 302 is retracted, and the pedal 306 is rotated and stored in the storage limit frame 305 corresponding to the pedal 306 to prevent the pedal 306 from being exposed and scratching pedestrians or getting caught on foreign objects. Finally, the second telescopic rod 302 is snapped back into the second slot 301 of the bracket 201 to complete the storage of the auxiliary component 3. The equipment returns to its normal pushing form and does not affect subsequent normal use.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A baby safety device with an integrated retractable walking mechanism, comprising a baby safety device (1), characterized in that: The baby safety device (1) has a walking mechanism (2) detachably connected to its bottom, and an auxiliary component (3) detachably connected to its side. The infant safety device (1) includes a seat (101), a turntable (104) is detachably connected to the bottom of the seat (101), a base (103) is rotatably connected to the bottom of the turntable (104) via a rotating shaft (107), and a first slot (105) is fixedly connected to the front end of the base (103). The walking mechanism (2) includes a bracket (201), and rollers (202) are rotatably connected to the four corners of the bottom end of the bracket (201). The two ends of the seat (101) are symmetrically connected to armrests (204) via connecting shafts (203). The inner wall of the connecting shaft (203) is fixedly connected to a second locking shaft (208). The inner wall of the bracket (201) is symmetrically fixedly connected to a fixing shaft (206). The two ends of the seat (101) are symmetrically fixedly connected to a pair of first locking shafts (205) corresponding to the fixing shaft (206) and a pair of locking slots (209) corresponding to the second locking shaft (208). After the fixing shaft (206) engages with the first locking shaft (205), a spline (207) is engaged inside. The auxiliary component (3) includes a second slot (301), the bottom end of which is engaged with a second telescopic rod (302), and the movable end of the second telescopic rod (302) is fixedly connected to a base plate (303).

2. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The bracket (201) is fixedly connected to a first telescopic rod (210), and the handrail (204) is designed to be telescopically adjustable in both width and length.

3. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The seat (101) is fixedly connected to three sides with mounting plates (102). The turntable (104) and multiple mounting plates (102) are provided with corresponding screw holes, and screws (106) are threaded into the screw holes.

4. The baby safety device with an integrated retractable walking mechanism according to claim 3, characterized in that: One end of the screw (106) is fixedly connected to a knob, and the knob is a polygonal design with rounded corners.

5. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The bottom plate (303) is fixedly connected to a side plate (304), and a limit frame (305) is fixedly connected to the top of the side plate (304). The inner wall of the limit frame (305) is connected to a pedal (306) with damping rotation.

6. The baby safety device with an integrated retractable walking mechanism according to claim 5, characterized in that: The limiting frame (305) is a U-shaped protective structure, and the height of both ends of the limiting frame (305) is higher than the upper surface of the pedal (306).

7. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The handrail (204) is fitted onto the surface of the connecting shaft (203) and can rotate within the range of 0°-120°.

8. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The inner walls of the first slot (105) and the second slot (301) are both provided with raised textures, and the fixed end of the second telescopic rod (302) engages with the first slot (105) or the second slot (301).

9. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The turntable (104) and the rotating shaft (107) are provided with corresponding limiting grooves (108) around their perimeter, and a pair of limiting grooves (108) are fitted with pins (109).

10. The baby safety device with an integrated retractable walking mechanism according to claim 1, characterized in that: The telescopic structure of the armrest (204) is the same as that of the luggage handle.

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