Head support assembly of child safety seat and child safety seat

Abstract

The utility model discloses a head support assembly of a child safety seat and the child safety seat. The head support assembly comprises a supporting piece and a shell arranged outside the supporting piece. An energy absorption part is arranged on the supporting piece, and the energy absorption part deforms or is damaged to buffer the external force under the action of the external force. According to the head support assembly, when the side face of an automobile is impacted and the head of a child impacts the supporting piece, the energy absorption part deforms or is torn under the impact of the head of the child, and part of impact energy generated by collision can be absorbed in the deformation or tearing process of the energy absorption part, so that the harm of collision to the child is reduced, and the safety of the child is improved. And the safety performance of the child safety seat in use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field, concretely relates to a headrest subassembly of children's safety seat and children's safety seat. BACKGROUND

[0002] Children's safety seat is designed for children of different weights or age groups, is installed in the car for use, and can effectively improve the safety performance of children riding in the car. When the car collides, the impact load generated by the collision can cause a certain degree of damage to the head of the child. In order to reduce the damage to the child's head caused by the car collision, some children's safety seats are provided with an energy-absorbing structure on the headrest subassembly to absorb the impact load generated by the impact, thereby reducing the damage to the child's head caused by the impact load. In the prior art, the energy-absorbing structure on the headrest subassembly has poor energy-absorbing effect, thereby failing to effectively protect the child. SUMMARY

[0003] The utility model aims at the deficiency in the prior art, and provides a headrest subassembly of children's safety seat with good buffering and energy-absorbing effect.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A headrest subassembly of children's safety seat, comprising a support member and a housing provided outside the support member;

[0006] The support member is provided with an energy-absorbing part, which deforms or breaks under the action of external force to buffer the external force.

[0007] In some embodiments, the support member is in the shape of U as a whole and surrounds a head accommodating space provided with an opening facing the front side, and the energy-absorbing part is provided at a position of the support member facing the head accommodating space.

[0008] In some embodiments, the structural strength of the energy-absorbing part is less than that of other parts of the support member except the energy-absorbing part, and the energy-absorbing part and the housing have a hollow cavity therebetween to form an energy-absorbing cavity.

[0009] In some embodiments, one side of the support member facing the housing is provided with a groove, the energy-absorbing part is opposite to the groove and forms the bottom of the groove, and the groove forms the energy-absorbing cavity. The setting of the energy-absorbing cavity can accommodate the deformation amount of the energy-absorbing part, and at the same time, the energy-absorbing cavity gradually collapses due to the deformation of the energy-absorbing part. During this process, part of the impact energy generated by the collision can also be absorbed, which makes the impact energy not directly transmitted to the housing with relatively high structural strength, so that the head will not be damaged due to insufficient buffering caused by the impact on the relatively hard housing.

[0010] In some embodiments, the support member comprises side support portions arranged on left and right sides respectively, and each of the side support portions is provided with an energy absorption portion;

[0011] Each of the side support portions is provided with a groove recessed inward from a side of the support member towards the shell.

[0012] In some embodiments, the support member further comprises a rear support portion arranged at a rear portion, and the side support portions are arranged on left and right sides of the rear support portion respectively, and each of the side support portions extends forward from a connection portion with the rear support portion and towards an outer side of the headrest assembly, and the energy absorption portion is arranged at a middle rear portion and a middle upper portion of the side support portion.

[0013] In some embodiments, the energy absorption portion extends rearward to a position at least flush with a front end surface of the rear support portion.

[0014] In some embodiments, the energy absorption portion is provided with a plurality of through holes penetrating the energy absorption portion.

[0015] In some embodiments, the material strength of the support member is less than that of the shell;

[0016] The support member is a foam member, and the shell is a plastic member.

[0017] In some embodiments, the headrest assembly further comprises a canopy assembly arranged on the shell, and the canopy assembly comprises a canopy base and a canopy rod rotatably arranged on the canopy base, and the canopy base is fixedly arranged on the shell.

[0018] The canopy base is arranged at a front portion of left and right side portions of the shell respectively, and each of the canopy base is arranged at least partially on an inner side of the shell.

[0019] The utility model also provides a headrest assembly of a child safety seat, including shell and support member of setting in the shell, the support member is as a whole U type and surrounds and has the head portion containing space which sets up to the front opening, the side of the support member is provided with a plurality of recesses away from the head portion containing space, the recess setting makes the support member of corresponding area thin in thickness, under the action of external force, the support member of this thinning area can break or deformation to buffer external force action.

[0020] The utility model also provides a headrest assembly of a child safety seat, including shell and support member of setting in the shell, part support member is provided with a plurality of through holes to form energy absorption portion in this area, under the action of external force, the energy absorption portion deformation or breakage to buffer external force action.

[0021] The utility model also provides a head support subassembly of child safety seat, including casing and support spare of setting in casing, the support spare includes energy absorption part and non energy absorption part, the material quality of energy absorption part is different from the material quality of non energy absorption part, under the action of external force energy absorption part is prior to the non energy absorption part produces deformation or breakage to buffer external force action.

[0022] The utility model also provides a child safety seat, including seat body and head support subassembly of setting on seat body, the head support subassembly adopts the head support subassembly of any one of the above.

[0023] Due to the use of the above technical scheme, compared with the prior art, the child safety seat of the utility model has the following advantages: in the head support subassembly of the child safety seat of the utility model, when the car is side-impacted and the child's head is impacted to the support piece, the energy absorption part is deformed or torn under the impact of the child's head, and part of the impact energy generated by the collision can be absorbed during the deformation or tearing of the energy absorption part, thereby reducing the damage of the collision to the child and improving the safety performance of the child safety seat during use. BRIEF DESCRIPTION OF DRAWINGS

[0024] ATTACHED Figure 1 It is one of the stereogrammatical schematic views of the head support subassembly of the child safety seat of this embodiment 1;

[0025] ATTACHED Figure 2 It is the second stereogrammatical schematic view of the head support subassembly of the child safety seat of this embodiment 1;

[0026] ATTACHED Figure 3 It is the side view schematic view of the head support subassembly of the child safety seat of this embodiment 1;

[0027] ATTACHED Figure 4 It is the attached Figure 3 sectional view schematic view along line A-A;

[0028] ATTACHED Figure 5 It is the attached Figure 4 sectional view schematic view along line B-B;

[0029] ATTACHED Figure 6 It is the attached Figure 4 sectional view schematic view along line C-C;

[0030] ATTACHED Figure 7 It is the side view schematic view of the child safety seat of this embodiment 1;

[0031] ATTACHED Figure 8 It is the front view schematic view of the child safety seat of this embodiment 1.

[0032] Wherein: 1, base; 21, seat; 22, backrest; 3, headrest assembly; 31, shell; 32, rear support part; 33, side support part; 331, energy absorption part; 34, energy absorption cavity; 35, buffer layer; 36, canopy assembly; 361, canopy seat; 362, canopy rod; 37, main support plate; 4, locking piece. DETAILED DESCRIPTION

[0033] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0034] In the following description, the directions such as "front", "rear", "left", "right", "up", "down" and the like are all according to the directions shown in the drawings. Figure 3 In the drawings, the left direction is "front", the right direction is "rear", the up direction is "up" and the down direction is "down". The directions perpendicular to the paper are "left" and "right". The above definitions of directions are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] Embodiment 1

[0036] As shown in Figs. Figure 7 and Figure 8 , the child safety seat comprises a base 1 and a seat body arranged on the base 1, the seat body comprising a seat 21 supporting the buttocks of a child, a backrest 22 supporting the back of the child and a headrest assembly 3 arranged on the backrest 22 to support the head of the child.

[0037] The headrest assembly 3 comprises a support member and a shell 31 arranged outside the support member.

[0038] The material strength of the support member is less than that of the shell 31. In this embodiment, the support member is a foam member and the shell 31 is a plastic member.

[0039] The support member comprises a rear support part 32 and side support parts 33, the side support parts 33 being fixedly arranged on the left and right sides of the rear support part 32 respectively, and each side of the side support part 33 extending forward from the connection with the rear support part 32 and outward of the headrest assembly 3. The side support parts 33 on the left and right sides and the rear support part 32 form a U-shaped structure with the opening facing forward, which is a head accommodating space for accommodating the head of the child. In the utility model, the outward side refers to the side away from the head accommodating space, and the inward side is opposite to the outward side and refers to the side close to the head accommodating space. In this embodiment, the rear support part 32 and the side support parts 33 on the left and right sides are integrally arranged.

[0040] The support member is provided with an energy-absorbing portion 331. When the child's head hits the energy-absorbing portion 331 during a side impact of the vehicle, the energy-absorbing portion 331 deforms or tears to absorb the impact load generated by the impact.

[0041] The energy-absorbing portion 331 is arranged at a position of the support member facing the head-receiving space. The energy-absorbing portion 331 has a structural strength lower than that of other portions of the side support portion 33 except the energy-absorbing portion 331, and has a hollow cavity between the energy-absorbing portion 331 and the inner side wall of the housing 31, which forms an energy-absorbing cavity 34. The energy-absorbing portion 331 and the energy-absorbing cavity 34 together form an energy-absorbing structure for absorbing the impact energy generated by a side impact of the vehicle.

[0042] Specifically, on one hand, when the child's head hits the side support portion 33 during a side impact of the vehicle, the impact is applied to the energy-absorbing portion 331. Since the energy-absorbing portion 331 has a relatively low structural strength, the child's head will not directly hit the hard structure to cause injury. The energy-absorbing portion 331 deforms or tears under the impact of the child's head, and absorbs part of the impact energy during the deformation or tearing of the energy-absorbing portion 331. The energy-absorbing cavity 34 is arranged to accommodate the deformation of the energy-absorbing portion 331, and gradually collapses as the space is filled by the deformation of the energy-absorbing portion 331. During this process, part of the impact energy is also absorbed, so that the impact energy is not directly transmitted to the housing 31 which has a relatively high structural strength, and the child's head will not be injured due to insufficient cushioning when hitting the relatively hard housing 31.

[0043] On the other hand, when the vehicle is subjected to a side impact and the impact load is applied to the housing 31, the energy-absorbing cavity 34 also collapses to absorb the impact energy generated by the impact, thereby reducing the impact load acting on the child and reducing the injury to the child.

[0044] Specifically, the support member is provided with a plurality of grooves on the side away from the head-receiving space. The energy-absorbing portion 331 corresponds to the positions of the grooves, and the grooves form the energy-absorbing cavity 34. The groove bottoms form the energy-absorbing portion 331. The grooves reduce the thickness of the corresponding regions of the support member, and the structural strength of the support member in the thinned regions is reduced under external force, so that the support member can be broken or deformed to cushion the external force. Moreover, this arrangement simplifies the processing technology of the headrest assembly 3 and facilitates the production and manufacturing of the headrest assembly 3.

[0045] In this embodiment, the energy-absorbing portion 331 is arranged on each side of the side support portion 33. The energy-absorbing portion 331 is located on the inner side of the side support portion 33. The grooves are formed by recessing from the outer side to the inner side of each side of the side support portion 33.

[0046] The inner side of the energy absorbing portion 331 is arc-shaped and slightly convex towards the inner side of the head accommodating space, which makes the deformation of the energy absorbing portion 331 large and increases the energy absorbing effect.

[0047] In a side impact, the middle back and middle upper part of the child's head are more likely to hit the side support portion 331, so the energy absorbing portion 331 is arranged on the middle back and middle upper part of the side support portion 33, and preferably extends rearward at least to a position flush with the front end surface of the rear support portion 32. In this way, the positions of the energy absorbing cavity 34 and the energy absorbing portion 331 correspond to the positions of the child's head hitting the side support portion 33, so that the child's head can be better protected.

[0048] The energy absorbing portion 331 is also provided with a plurality of through holes penetrating the inner and outer end surfaces thereof, which can reduce the structural strength of the energy absorbing portion 331, so that it can be deformed or torn and damaged under the impact of the child's head.

[0049] The headrest assembly 3 further comprises a cushion layer 35, which at least covers the inner side of the support member. The cushion layer 35 is made of soft material, such as cloth cover, sponge, etc., which can improve the comfort of the headrest assembly 3 in use.

[0050] When the child safety seat is installed on the stroller frame for use, the headrest assembly can further comprise a canopy assembly 36 arranged on the housing 31.

[0051] Specifically, the canopy assembly 36 comprises a canopy seat 361 and a canopy rod 362. The canopy seat 361 is fixedly arranged on the housing 31, and the canopy rod 362 is rotatably arranged on the canopy seat 361.

[0052] The canopy seat 361 is arranged on the left and right sides of the housing 31 respectively, and the canopy rod 362 has a U-shaped structure, with both ends of the canopy rod 362 rotatably connected to the corresponding canopy seat 361.

[0053] The canopy rod 362 can be provided with a plurality of rods, each of which is rotatably connected to a different position of the canopy seat 361.

[0054] Each side of the canopy seat 361 is at least partially arranged on the inner side of the housing 31, so that the part of the canopy seat 361 protruding from the outer surface of the housing 31 has a smaller structural volume, thereby not affecting the arrangement of the headrest assembly 3 on the backrest 2, and making the appearance of the headrest assembly 3 more attractive. The part of the canopy seat 361 on the inner side of the housing 31 is as close as possible to the front part of the housing 31, so as to avoid affecting the energy absorbing effect of the energy absorbing structure.

[0055] The headrest assembly 3 further comprises a main support plate 37 arranged on the backrest 22, and the support member is fixedly arranged above the main support plate 37.

[0056] Preferably, the headrest assembly 3 is arranged to be slidable up and down on the backrest 22, so that the height of the headrest assembly 3 on the backrest 22 can be adjusted according to the height of the child sitting in the child safety seat, so that the headrest assembly can better support and protect the child.

[0057] When the headrest assembly 3 is adjusted in place, the relative positions of the headrest assembly 3 and the backrest 22 are locked by the locking member 4.

[0058] In this embodiment, the locking member 4 is arranged to be slidable in the left-right direction on the left and right sides of the main support plate 37, and the left and right sides of the backrest 22 are respectively provided with a lock hole matched with the locking member 4. When the locking member 4 is inserted into the lock hole, the relative positions of the headrest assembly 3 and the backrest 22 are locked. When the locking member 4 is out of the lock hole, the headrest assembly 3 can be adjusted in position by sliding up and down relative to the backrest 22.

[0059] Embodiment 2

[0060] In this embodiment, the support member is provided with a plurality of through holes, and the structural strength of the support member at the positions corresponding to the through holes is relatively reduced, thereby forming an energy absorption portion 331. Under the action of external force, the energy absorption portion 331 deforms or breaks to buffer the external force. The rest is the same as Embodiment 1.

[0061] Embodiment 3

[0062] In this embodiment, the support member includes an energy absorption portion 331 and a non-energy absorption portion other than the energy absorption portion 331, and the material of the energy absorption portion 331 is different from that of the non-energy absorption portion, so that the structural strength of the energy absorption portion 331 is less than that of the non-energy absorption portion, so that the energy absorption portion 331 deforms or breaks to buffer the external force under the action of external force. The rest is the same as Embodiment 1.

[0063] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A headrest assembly for a child safety seat, the headrest assembly comprising: The support member and the shell are arranged outside the support member. The support member is provided with an energy-absorbing part which deforms or breaks under external force to buffer the external force.

2. A headrest assembly for a child safety seat according to claim 1, wherein: The support member is in a U shape and surrounds a head accommodating space which is open to the front side, and the energy-absorbing part is arranged at a position of the support member facing the head accommodating space.

3. A head restraint assembly for a child safety seat according to claim 2, wherein: The structural strength of the energy-absorbing part is less than that of other parts of the support member except the energy-absorbing part, and the energy-absorbing part and the shell have a hollow cavity to form an energy-absorbing cavity.

4. A head restraint assembly for a child safety seat according to claim 3, wherein: The support member is provided with a groove on a side facing the shell, the energy-absorbing part is opposite to the groove and forms the bottom of the groove, and the groove forms the energy-absorbing cavity.

5. A headrest assembly for a child safety seat according to claim 2, wherein: The support member includes side support parts arranged on the left and right sides respectively, and each side support part is provided with an energy-absorbing part. Each side support part is provided with a groove which is recessed inward from a side of the support member facing the shell.

6. A head restraint assembly for a child safety seat according to claim 5, wherein: The support member further includes a rear support part located at the rear, and the side support parts are arranged on the left and right sides of the rear support part respectively, each side support part extends forward from the connection with the rear support part and to the outside of the headrest assembly, and the energy-absorbing part is located at the middle rear and middle upper parts of the side support part.

7. A head restraint assembly for a child safety seat according to claim 6, wherein: The energy-absorbing part extends rearward to at least a position flush with the front end surface of the rear support part.

8. A headrest assembly for a child safety seat according to claim 5, wherein: The energy-absorbing part is provided with a plurality of through holes penetrating the inner and outer end surfaces of the energy-absorbing part.

9. A headrest assembly for a child safety seat according to claim 1, wherein: The material strength of the support member is less than that of the shell. The support member is a foam member, and the shell is a plastic member.

10. A head restraint assembly for a child safety seat according to any one of claims 1 to 9, wherein: The headrest assembly further includes a canopy assembly arranged on the shell, the canopy assembly includes a canopy seat and a canopy rod rotatably arranged on the canopy seat, and the canopy seat is fixedly arranged on the shell. The canopy seat is arranged on the front part of the left and right sides of the shell respectively, and each side canopy seat is at least partially arranged on the inner side of the shell.

11. A headrest assembly for a child safety seat, comprising: The support member is in a U shape and surrounds a head accommodating space which is open to the front side, and a plurality of grooves are arranged on a side of the support member facing away from the head accommodating space, the arrangement of the grooves thins the corresponding area of the support member in thickness, and the thinned area of the support member can break or deform under external force to buffer the external force.

12. A headrest assembly for a child safety seat, comprising: The support member is in a U shape and surrounds a head accommodating space which is open to the front side, and a plurality of through holes are arranged on part of the support member to form an energy-absorbing part in the area, and the energy-absorbing part deforms or breaks under external force to buffer the external force.

13. A headrest assembly for a child safety seat, comprising: The support member includes an energy-absorbing part and a non-energy-absorbing part, and the material of the energy-absorbing part is different from that of the non-energy-absorbing part, so that the energy-absorbing part deforms or breaks preferentially to the non-energy-absorbing part under external force to buffer the external force.

14. A child safety seat, characterized by: The headrest assembly adopts the headrest assembly as claimed in any one of claims 1-13.

Images