Top strap cushioning structure and its child safety seat

Abstract

This application discloses a top-pull-down buffer structure and its child safety seat, comprising: a fixed base, a buffer section, and a traction rope. The traction rope is fixedly connected to the fixed base through the buffer section. The buffer section includes a winding rod, a fixed rod, and a buffer rod, with both ends of the winding rod fixed to the fixed base. A bracket is provided between the winding rod and the fixed rod, and the buffer rod is mounted on the bracket. The traction rope has a rope body and a traction knot, with the traction knot located at one end of the rope body. The traction knot passes around the buffer rod and is looped onto the winding rod. The buffer rod, the bracket, and the rope body located below the winding rod form a crumple zone that provides a buffering effect. By setting up the buffer section and the traction rope, and with the rope body passing around the winding rod and being looped onto the buffer rod through the traction knot, it can effectively provide traction force for the child safety seat. In the event of an impact, the buffer rod absorbs the external force and moves on the bracket, reducing the crumple zone and creating a buffer distance, which can effectively prevent the impact force from being directly transmitted into the child safety seat, thereby improving the protective performance of the child safety seat.

Description

Technical Field

[0001] This application relates to the field of child safety seat technology, and in particular to an upper pull strap cushioning structure and a child safety seat thereof. Background Technology

[0002] To ensure vehicle safety, children use child safety seats. Existing child safety seats typically use Lower Anchors and Tethers for Children (LATCH) for securing the seat. The biggest difference between LATCH and the European standard child safety seat fixing system (International Standards Organization FIX, ISOFIX) is that LATCH uses a hook-and-loop connection instead of a rigid link, and it has one more anchor point than ISOFIX. Specifically, the additional anchor point in LATCH extends a tow strap from the top of the child safety seat and is secured behind the rear seat headrest for better securing. However, the existing tow strap is rigidly connected to the child safety seat through the fixing structure. In the event of a collision, the tow strap can pull the child safety seat, causing rapid displacement and potentially injuring the child, thus affecting the safety and protective performance of the child safety seat. Summary of the Invention

[0003] This application provides an upper pull strap buffer structure and a child safety seat thereof, which can effectively buffer impact force and improve the safety and protective performance of the child safety seat.

[0004] In a first aspect, embodiments of this application provide an upward-pulling buffer structure, comprising: a fixed base, a buffer section, and a traction rope, wherein the traction rope is fixedly connected to the fixed base through the buffer section; the buffer section includes a winding rod, a fixed rod, and a buffer rod, wherein both ends of the winding rod are respectively fixed to the fixed base; a bracket is provided between the winding rod and the fixed rod, and the buffer rod is disposed on the bracket; the traction rope has a rope body and a traction knot, wherein the traction knot is located at one end of the rope body, and the traction knot passes around the buffer rod and is sleeved on the winding rod; the buffer rod, the bracket, and the rope body located below the winding rod form a collapse space that provides a buffering effect.

[0005] The pull-up strap buffer structure of this application embodiment has at least the following beneficial effects: By setting a buffer part and a traction rope, the rope is wrapped around the winding rod and then sleeved on the buffer rod through a traction knot, which can effectively provide traction for the child safety seat. In the event of an impact, the buffer rod absorbs the external force and moves on the bracket, reducing the crumple space and generating a buffer distance, which can effectively prevent the impact force from being directly transmitted into the child safety seat, thereby improving the safety and protective performance of the pull-up strap buffer structure; by setting a fixed base and a fixed rod, the bracket can stably support the winding rod and the buffer rod, preventing the winding rod and the buffer rod from becoming loose during use, ensuring the structural integrity of the pull-up strap buffer structure, and improving the stability and service life of the pull-up strap buffer structure.

[0006] In some embodiments, the bracket is provided with a slot, and the buffer rod is inserted into the slot and movably connected to the bracket. By providing the slot, the connection between the buffer rod and the bracket is made flexible, ensuring that the buffer rod can move along the slot under force, generating a stable buffer distance that effectively prevents the impact force from being directly transmitted into the child safety seat, thereby improving the safety and protective performance of the upper strap buffer structure.

[0007] In some embodiments, a limiting block is provided in the slot, and the height of the limiting block gradually decreases along the direction close to the buffer rod. By setting the limiting block, it is possible to effectively ensure that the limiting block stably locks the buffer rod, preventing the buffer rod from loosening or shifting its position under force, thereby improving the safety and stability of the pull-up belt buffer structure.

[0008] In some embodiments, the lower end of the buffer rod is provided with a buckle that cooperates with the bracket. By providing the buckle, the buffer rod can be stably installed in the bracket, preventing it from becoming loose during normal use and improving the safety of the upper pull-up strap buffer structure.

[0009] In some embodiments, a groove is provided between the buckle and the buffer rod, and the groove is distributed on both sides of the buckle. By providing the groove, the contact area between the buckle and the buffer rod is reduced, ensuring that the buckle can deform or break under external force, so that the buffer rod is disconnected from the bracket and moves along the groove, thus ensuring the protective performance of the upper pull strap buffer structure.

[0010] In some embodiments, the latches are evenly distributed at the lower end of the buffer rod. This structure ensures that the latches can stably fix the buffer rod to the bracket, preventing the buffer rod from loosening or shifting during normal use, and ensuring the structural stability of the pull-up buffer structure.

[0011] In some embodiments, the upper end of the bracket is provided with a fixing ring for mounting the winding rod. By providing the fixing ring, the connection stability between the winding rod and the bracket is ensured, preventing the winding rod from falling off under stress and affecting the fixing function of the traction rope, thus ensuring the protective performance of the upper pull belt buffer structure.

[0012] In some embodiments, the lower end of the bracket is provided with a positioning groove for connecting the fixing rod, and the buffer rod is located between the fixing ring and the positioning groove. By providing the positioning groove, the fixing rod can stably fix the lower end of the bracket, preventing displacement of the bracket during use and improving the structural stability of the upper pull-belt buffer structure.

[0013] Secondly, embodiments of this application provide a child safety seat, including a seat body and an upper tether cushioning structure as described in the first aspect, with a fixed base and a fixed rod both fixed in the seat body, and the end of the traction rope away from the traction knot passing around the winding rod and extending out of the seat body.

[0014] In some embodiments, the seat body is further provided with a base plate and a cover, with a notch directly between the base plate and the cover, through which the traction rope extends outward. By providing a base plate and a cover, it is ensured that the traction rope can extend outward through the notch, improving the ease of use of the child safety seat.

[0015] The pull-up strap buffer structure and child safety seat of this application embodiment have at least the following beneficial effects: By setting up a buffer part and a traction rope, the rope is wrapped around the winding rod and then sleeved on the buffer rod through a traction knot, which can effectively provide traction force for the child safety seat. In the event of an impact, the buffer rod absorbs external force and moves on the bracket, reducing the crumple zone and generating a buffer distance, which can effectively prevent the impact force from being directly transmitted into the child safety seat, thereby improving the safety and protective performance of the child safety seat; By setting up a fixed base and a fixed rod, the bracket can stably support the winding rod and the buffer rod, preventing the winding rod and the buffer rod from becoming loose during use, ensuring the structural integrity of the pull-up strap buffer structure, and improving the stability and service life of the child safety seat; By setting up a clip The groove ensures the flexibility of the connection between the buffer bar and the bracket, allowing the buffer bar to move along the groove under force, creating a stable buffer distance that effectively prevents impact force from being directly transmitted into the child safety seat, improving the safety and protective performance of the child safety seat. The limiting block effectively ensures that the limiting block stably holds the buffer bar, preventing it from loosening or shifting under force, thus improving the safety and stability of the child safety seat. The buckle ensures that the buffer bar is stably installed within the bracket, preventing it from loosening during normal use, further enhancing the safety of the child safety seat. The base plate and cover allow the traction rope to extend outwards through the notch, improving the ease of use of the child safety seat.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the pull-up band buffer structure provided in one embodiment of this application;

[0018] Figure 2 This is an exploded view of the structure of the pull-up band buffer structure provided in one embodiment of this application;

[0019] Figure 3 yes Figure 2 Enlarged view of the center paddle's structure;

[0020] Figure 4 This is a cross-sectional view of an upper pull-up band buffer structure provided in one embodiment of this application;

[0021] Figure 5 A schematic diagram of the upper pull-up band buffer structure provided in another embodiment of this application;

[0022] Figure 6 This is an exploded view of the structure of the pull-up band buffer structure provided in another embodiment of this application;

[0023] Figure 7 This is a structural schematic diagram of a child safety seat provided in one embodiment of this application;

[0024] Figure 8 This is an exploded view of the structure of a child safety seat provided in one embodiment of this application. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various implementations. Simultaneously, the steps or actions described in the method description can be rearranged or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0026] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0028] Reference Figures 1 to 6 This utility model embodiment provides an upward pull-up buffer structure, including: a fixed base 100, a buffer part 200, and a traction rope 300. The traction rope 300 is fixedly connected to the fixed base 100 through the buffer part 200. The buffer part 200 includes a winding rod 210, a fixed rod 220, and a buffer rod 230. The two ends of the winding rod 210 are respectively fixed to the fixed base 100. A bracket 240 is provided between the winding rod 210 and the fixed rod 220, and the buffer rod 230 is set on the bracket 240. The traction rope 300 has a rope body 310 and a traction knot 320. The traction knot 320 is located at one end of the rope body 310 and is wrapped around the buffer rod 230 and sleeved on the winding rod 210. The buffer rod 230, the bracket 240, and the rope body 310 located below the winding rod 210 form a collapse space 250 that provides a buffering effect.

[0029] The pull-up strap buffer structure of this application embodiment has at least the following beneficial effects: By setting the buffer part 200 and the traction rope 300, the rope 310 passes around the winding rod 210 and is sleeved on the buffer rod 230 through the traction knot 320, which can effectively provide traction force for the child safety seat. In the event of an impact, the buffer rod 230 absorbs the external force and moves on the bracket 240, the collapse space 250 shrinks and a buffer distance is generated, which can effectively prevent the impact force from being directly transmitted into the child safety seat, thereby improving the safety and protective performance of the pull-up strap buffer structure; by setting the fixed base 100 and the fixed rod 220, the bracket 240 stably supports the winding rod 210 and the buffer rod 230, preventing the winding rod 210 and the buffer rod 230 from becoming loose during use, ensuring the structural integrity of the pull-up strap buffer structure, and improving the stability and service life of the pull-up strap buffer structure.

[0030] In some embodiments, the bracket 240 is provided with a slot 241, and the buffer rod 230 is inserted into the slot 241 and movably connected to the bracket 240. By providing the slot 241, the connection flexibility between the buffer rod 230 and the bracket 240 is ensured, and the buffer rod 230 can move along the slot 241 under force, generating a stable buffer distance that can effectively prevent the impact force from being directly transmitted into the child safety seat, thereby improving the safety and protective performance of the upper strap buffer structure.

[0031] In some embodiments, a limiting block 242 is provided in the slot 241, and the height of the limiting block 242 gradually decreases along the direction close to the buffer rod 230. By setting the limiting block 242, it is possible to effectively ensure that the limiting block 242 stably locks the buffer rod 230, preventing the buffer rod 230 from loosening or shifting position under force, thereby improving the safety and stability of the pull-up belt buffer structure.

[0032] In some embodiments, the lower end of the buffer rod 230 is provided with a buckle 231 that cooperates with the bracket 240. By providing the buckle 231, it is ensured that the buffer rod 230 can be stably installed in the bracket 240, avoiding the buffer rod 230 from becoming loose during normal use and improving the safety of the pull-up belt buffer structure.

[0033] In some embodiments, a groove 232 is provided between the buckle 231 and the buffer rod 230, and the groove 232 is distributed on both sides of the buckle 231. By providing the groove 232, the contact area between the buckle 231 and the buffer rod 230 is reduced, ensuring that the buckle 231 can deform or break under external force, so that the buffer rod 230 is disconnected from the bracket 240 and moves along the groove 241, thus ensuring the protective performance of the pull-up strap buffer structure.

[0034] In some embodiments, the latches 231 are evenly distributed at the lower end of the buffer rod 230. This structure ensures that the latches 231 can stably fix the buffer rod 230 and the bracket 240, preventing the buffer rod 230 from loosening or shifting during normal use, and ensuring the structural stability of the pull-up buffer structure.

[0035] In some embodiments, the upper end of the bracket 240 is provided with a fixing ring 243 for mounting the winding rod 210. By setting the fixing ring 243, the connection stability between the winding rod 210 and the bracket 240 is ensured, and the winding rod 210 is prevented from falling off under stress, which would affect the fixing function of the traction rope 300 and ensure the protective performance of the upper pull belt buffer structure.

[0036] In some embodiments, the lower end of the bracket 240 is provided with a positioning groove 244 for connecting the fixing rod 220, and the buffer rod 230 is located between the fixing ring 243 and the positioning groove 244. By providing the positioning groove 244, the fixing rod 220 can be stably fixed to the lower end of the bracket 240, avoiding displacement of the bracket 240 during use and improving the structural stability of the upper pull-up buffer structure.

[0037] Reference Figure 7 and Figure 8 The embodiments of this application also provide a child safety seat, including a seat body 400 and an upper pull strap buffer structure as described above. The fixed base 100 and the fixed rod 220 are both fixed inside the seat body 400, and the end of the traction rope 300 away from the traction knot 320 passes around the winding rod 210 and extends to the outside of the seat body 400.

[0038] In some embodiments, the seat body 400 is further provided with a base plate 410 and a cover 420, with a notch 421 directly provided in the base plate 410 and the cover 420, through which the traction rope 300 extends outward. By providing a base plate 410 and a cover 420, it is ensured that the traction rope 300 can extend outward through the notch 421, thereby improving the ease of use of the child safety seat.

[0039] In the installation process of a child safety seat according to an embodiment of this application, firstly, a traction knot 320 is placed between two fixing rings 243, and a winding rod 210 is inserted into the fixing rings 243 and the traction knot 320 in sequence, so that the traction knot 320 is sleeved on the winding rod 210, and the winding rod 210 is fixed to the upper end of the bracket 240 by inserting the fixing rings 243; next, a buffer rod 230 is installed in the slot 241, and the buffer rod 230 is fixed to the lower end of the bracket 240 by the buckle 231; then, the rope 310 is wrapped around the buffer rod 230 and then around the winding rod 210 and extended outward; then, the fixing rod 22... The two ends of the buffer 200 are fixed to the rear side of the seat body 400. The fixing base 100 is installed above the fixing rod 220. By fixing the two ends of the winding rod 210 to the fixing base 100 and fastening the fixing rod 220 into the positioning groove 244, the buffer 200 is stably and accurately fixed to the seat body 400. The buffer rod 230, the bracket 240 and the rope 310 located below the winding rod 210 form a collapse space 250 that provides a buffering effect. Finally, the cover 420 is installed on the fixing base 100 on which the base plate 410 is installed, and the rope 310 extends outward through the notch 421. The entire installation process is efficient and controllable. The fixing base 100 and the fixing rod 220 can stably fix the upper pull strap buffer structure to the seat body 400, ensuring the stability and safety of the upper pull strap buffer structure.

[0040] In the use of a child safety seat according to an embodiment of this application, the user fixes the upper end of the child safety seat to the corresponding interface in the car using the rope 310. Since the traction knot 320 is located at one end of the rope 310 and the traction knot 320 passes around the buffer bar 230 and is sleeved on the winding bar 210, the fixing base 100 and the fixing bar 220 can stably fix the traction knot 320 to the seat body 400, so that the rope 310 can stably fix the child safety seat in the car, improving the safety and ease of use of the child safety seat. When the car is hit, the rope 310 is pulled by the traction knot 320 and the winding rod 210, and the rope 310 applies an upward tension to the buffer rod 230. Then, after the buffer rod 230 is subjected to force, the buckle 231 deforms between the groove 232, the buffer rod 230 is disconnected from the lower end of the bracket 240 and moves upward along the direction of the slot 241 until the limiting block 242 in the slot 241 fixes the buffer rod 230 back into the slot 241, so that the rope 310 tightens the winding rod 210 again. Due to the buffer distance generated during the movement of the buffer rod 230, the collapse space 250 is reduced and effectively absorbs the instantaneous tension of the rope 310, preventing the rope 310 from pulling the winding rod 210 and the upper pull strap buffer structure through the traction knot 320, which would cause damage to the seat body 400 and the child in the child safety seat, and affect the safety and protective performance of the child safety seat. It should be noted that when the buffer bar 230 moves under force, causing the collapse space 250 to shrink, the buckle 231 may be damaged under force. Therefore, the buffer bar 230 needs to be replaced with a brand new part, and the rope 310 and other components need to be reset so that the collapse space 250 can be restored to its original state. Only then can the pull strap buffer structure and the child safety seat continue to be used normally to ensure the safety and protective performance of the child safety seat.

[0041] The pull-up strap buffer structure and child safety seat of this application embodiment, by setting a buffer part 200 and a traction rope 300, with the rope 310 passing around the winding rod 210 and then sleeved on the buffer rod 230 through the traction knot 320, can effectively provide traction force for the child safety seat. In the event of an impact, the buffer rod 230 absorbs external force and moves on the bracket 240, the collapse space 250 shrinks and a buffer distance is generated, which can effectively prevent the impact force from being directly transmitted into the child safety seat, thereby improving the safety and protective performance of the child safety seat; by setting a fixed base 100 and a fixed rod 220, the bracket 240 stably supports the winding rod 210 and the buffer rod 230, preventing the winding rod 210 and the buffer rod 230 from loosening during use, ensuring the structural integrity of the pull-up strap buffer structure, and improving the stability and service life of the child safety seat; by setting a slot 241, it ensures that The flexible connection between the buffer bar 230 and the bracket 240 ensures that the buffer bar 230 can move along the slot 241 under stress, generating a stable buffer distance that effectively prevents the impact force from being directly transmitted into the child safety seat, thus improving the safety and protective performance of the child safety seat. The limiting block 242 effectively ensures that the limiting block 242 stably holds the buffer bar 230, preventing it from loosening or shifting position under stress, thus improving the safety and stability of the child safety seat. The buckle 231 ensures that the buffer bar 230 is stably installed within the bracket 240, preventing it from loosening during normal use, thus improving the safety of the child safety seat. The base plate 410 and the cover 420 ensure that the traction rope 300 can pass through the notch 421 and extend outwards, improving the ease of use of the child safety seat.

[0042] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0043] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A pull-up band buffer structure, characterized in that, include: The system comprises a fixed base, a buffer section, and a traction rope. The traction rope is fixedly connected to the fixed base via the buffer section. The buffer section includes a winding rod, a fixed rod, and a buffer rod. Both ends of the winding rod are fixed to the fixed base. A bracket is provided between the winding rod and the fixed rod, and the buffer rod is disposed within the bracket. The traction rope has a rope body and a traction knot. The traction knot is located at one end of the rope body and is looped around the buffer rod and onto the winding rod. The buffer rod, the bracket, and the rope body located below the winding rod form a collapse space that provides a buffering effect.

2. The pull-up buffer structure according to claim 1, characterized in that, The bracket is provided with a slot, and the buffer rod is inserted into the slot and movably connected to the bracket.

3. The pull-up buffer structure according to claim 2, characterized in that, The slot is provided with a limiting block, and the height of the limiting block gradually decreases along the direction close to the buffer rod.

4. The pull-up buffer structure according to claim 1, characterized in that, The lower end of the buffer rod is provided with a buckle that cooperates with the bracket.

5. The pull-up band buffer structure according to claim 4, characterized in that, A groove is provided between the buckle and the buffer rod, and the groove is distributed on both sides of the buckle.

6. The pull-up band buffer structure according to claim 4, characterized in that, The buckles are evenly distributed at the lower end of the buffer rod.

7. The pull-up buffer structure according to claim 1, characterized in that, The upper end of the bracket is provided with a fixing ring for fitting the winding rod.

8. The pull-up buffer structure according to claim 7, characterized in that, The lower end of the bracket is provided with a positioning groove for connecting the fixing rod, and the buffer rod is located between the fixing ring and the positioning groove.

9. A child safety seat, comprising a seat body and an upper tether cushioning structure as described in any one of claims 1 to 8, wherein a fixing base and a fixing rod are both fixed in the seat body, and the end of the traction rope away from the traction knot passes around the winding rod and extends out of the seat body.

10. The child safety seat according to claim 9, characterized in that, The seat body is also provided with a base plate and a cover, and the base plate and the cover are directly provided with a notch, through which the traction rope extends outward.

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