Child safety seat

Abstract

The utility model discloses a child safety seat which comprises a seat shell and a side protection mechanism arranged on the side portion of the lower portion of the seat shell. The side protection mechanism has a first state and a second state, and when the side protection mechanism is in the first state, the side protection mechanism is close to the side part of the lower part of the seat shell; and when the side protection mechanism is in the second state, the side protection mechanism is at least partially far away from the side part of the lower part of the seat shell and is supported on the outer side of the side part of the lower part of the seat shell. The side protection mechanism of the child safety seat is arranged on the side portion of the lower portion of the seat shell, so that when side impact occurs, generated impact load is transmitted to the position of the lower portion of the seat shell after being buffered and absorbed by the side protection mechanism, and the lower portion of the seat shell is far away from the head of a child. Therefore, the head of the child is not prone to swing leftwards or rightwards under the action of inertia force to collide with the side portion of the seat shell of the child safety seat, hurt to the head of the child can be reduced, and the protection effect of the side protection mechanism is improved.

Description

Technical Field

[0001] This utility model relates to the field of children's products technology, specifically to a child safety seat. Background Technology

[0002] Child safety seats effectively protect children while traveling in vehicles and are an essential device for car travel with children. Currently, some child safety seats are equipped with side impact protection mechanisms to cushion the impact energy from side collisions in the event of an accident, thus providing side protection for the child. However, existing side impact protection mechanisms are generally located on the upper side of the backrest. This type of structure does not adequately protect the child's head during a side impact, thus reducing the protective effect of the side impact protection mechanism. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a child safety seat with better side protection.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A child safety seat includes a seat housing and a side protection mechanism disposed on a side portion of the lower part of the seat housing; the side protection mechanism has a first state and a second state, wherein when the side protection mechanism is in the first state, the side protection mechanism is close to the side portion of the lower part of the seat housing; and when the side protection mechanism is in the second state, the side protection mechanism is at least partially away from the side portion of the lower part of the seat housing and is supported on the outside of the side portion of the lower part of the seat housing.

[0006] In some specific embodiments, the side protection mechanism includes a support member with one end movably connected to the side of the lower part of the seat housing; when the side protection mechanism is in a first state, the support member is close to the side of the lower part of the seat housing; when the side protection mechanism is in a second state, the support member is away from the side of the lower part of the seat housing and stands on the outside of the side of the lower part of the seat housing.

[0007] In some specific embodiments, the side protection mechanism further includes a first locking mechanism disposed between the side portion of the lower part of the seat housing and the support member, so as to lock the position of the support member when the side protection mechanism is in the second state;

[0008] And / or, the side protection mechanism further includes a second locking mechanism disposed between the support member and the side portion of the lower part of the seat housing to lock the position of the support member when the side protection mechanism is in the first state; the side protection mechanism further includes an elastic member disposed between the support member and the side portion of the lower part of the seat housing, such that after the second locking mechanism is unlocked, the support member automatically moves away from the side portion of the lower part of the seat housing.

[0009] In some specific embodiments, the side protection mechanism further includes a stop block movably connected to the other end of the support member; when the side protection mechanism is in a first state, both the support member and the stop block are close to the side of the lower part of the seat housing, and a first angle is formed between the support member and the stop block; when the side protection mechanism is in a second state, both the support member and the stop block are away from the side of the lower part of the seat housing, the support member and the stop block extend in different directions, and a second angle is formed between the support member and the stop block, wherein the first angle and the second angle are different;

[0010] And / or, the side protection mechanism further includes a strut assembly movably connected to the stop; when the side protection mechanism is in the second state, the strut assembly is supported between the stop and the side of the lower part of the seat housing, or the strut assembly is supported between the stop and the support member; when the side protection mechanism is in the first state, the strut assembly is close to the stop or the support member.

[0011] In some specific embodiments, when the side protection mechanism is in the second state, the outer side of the stop is located outside the outer side of the support, or the outer side of the stop and the outer side of the support are located in the same plane;

[0012] And / or, when the side protection mechanism is in the second state, the area of ​​the outer side of the stop is not less than the cross-sectional area of ​​the support in the lateral direction.

[0013] In some specific embodiments, when the side protection mechanism is in the first state, the stop and the support extend in the same direction.

[0014] In some specific embodiments, the side protection mechanism further includes a third locking mechanism disposed between the support member and the stop block to lock the relative positions of the support member and the stop block when the side protection mechanism is in the second state.

[0015] In some specific embodiments, the support member includes a main body and an end cap fixedly disposed at one end of the main body away from the seat housing. The main body is slidably disposed on the side of the lower part of the seat housing in a left-right direction, and the area of ​​the outer side of the end cap is not less than the cross-sectional area of ​​the main body in the lateral direction.

[0016] In some specific embodiments, the side protection mechanism further includes a base fixedly disposed on the side of the lower part of the seat housing, the support member being movably connected to the base, and the base being provided with a receiving groove; when the side protection mechanism is in a first state, the support member is wholly or partially received in the receiving groove; when the side protection mechanism is in a second state, the support member is away from the base.

[0017] In some specific embodiments, the seat housing includes a seat, a backrest disposed at the rear of the seat, and armrests respectively disposed on the left and right sides of the seat, wherein the side protection mechanism is disposed on the side of the seat, or the side protection mechanism is disposed on the side of the lower part of the armrest.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The side protection mechanism of the child safety seat of this utility model is located on the side of the lower part of the seat shell. In this way, when a side impact occurs, the impact load generated is buffered and absorbed by the side protection mechanism and then transferred to the lower part of the seat shell. Since the lower part of the seat shell is far away from the child's head, the child's head is less likely to swing to the left or right under the action of inertial force and hit the side of the seat shell of the child safety seat. In this way, the injury to the child's head can be reduced, thereby improving the protective effect of the side protection mechanism. Attached Figure Description

[0019] Appendix Figure 1 This is a three-dimensional schematic diagram of the child safety seat in Embodiment 1 (with the side protection mechanism in the first state);

[0020] Appendix Figure 2 This is a side view of the child safety seat in Embodiment 1 (with the side protection mechanism in the first state);

[0021] Appendix Figure 3 This is a frontal view of the child safety seat in Embodiment 1 (with the side protection mechanism in the first state);

[0022] Appendix Figure 4 This is a three-dimensional schematic diagram of the child safety seat in Embodiment 1 (with the side protection mechanism in the second state);

[0023] Appendix Figure 5 This is a side view of the child safety seat in Embodiment 1 (with the side protection mechanism in the second state);

[0024] Appendix Figure 6 This is a frontal view of the child safety seat in Embodiment 1 (with the side protection mechanism in the second state);

[0025] Appendix Figure 7 This is one of the three-dimensional schematic diagrams of the side protection mechanism in Embodiment 1 (the side protection mechanism is in the first state);

[0026] Appendix Figure 8 This is a second perspective view of the side protection mechanism in Embodiment 1 (the side protection mechanism is in the first state);

[0027] Appendix Figure 9 This is a front view schematic diagram of the side protection mechanism in Embodiment 1 (the side protection mechanism is in the first state);

[0028] Appendix Figure 10 For the appendix Figure 9 sectional view along line AA;

[0029] Appendix Figure 11 This is one of the three-dimensional schematic diagrams of the side protection mechanism in Embodiment 1 (the side protection mechanism is in the second state);

[0030] Appendix Figure 12 This is a second perspective view of the side protection mechanism in Embodiment 1 (the side protection mechanism is in the second state);

[0031] Appendix Figure 13 This is a front view schematic diagram of the side protection mechanism in Embodiment 1 (the side protection mechanism is in the second state);

[0032] Appendix Figure 14 For the appendix Figure 13 sectional view along line AA;

[0033] Appendix Figure 15 This is a three-dimensional schematic diagram of the side protection mechanism in Embodiment 2 (the side protection mechanism is in the first state);

[0034] Appendix Figure 16 This is a top view of the side protection mechanism in Embodiment 2 (the side protection mechanism is in the first state);

[0035] Appendix Figure 17 For the appendix Figure 16 sectional view along line AA;

[0036] Appendix Figure 18 This is a three-dimensional schematic diagram of the side protection mechanism in Embodiment 2 (the side protection mechanism is in the second state);

[0037] Appendix Figure 19 This is a top view of the side protection mechanism in Embodiment 2 (the side protection mechanism is in the second state);

[0038] Appendix Figure 20 For the appendix Figure 19 sectional view along line AA;

[0039] Appendix Figure 21 This is a three-dimensional schematic diagram of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the first state);

[0040] Appendix Figure 22 This is a front view schematic diagram of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the first state);

[0041] Appendix Figure 23 This is a top view of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the first state);

[0042] Appendix Figure 24 This is a side view of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the first state);

[0043] Appendix Figure 25 For the appendix Figure 24 sectional view along line AA;

[0044] Appendix Figure 26 This is a three-dimensional schematic diagram of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the second state);

[0045] Appendix Figure 27 This is a front view schematic diagram of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the second state);

[0046] Appendix Figure 28 This is a top view of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the second state);

[0047] Appendix Figure 29 This is a side view of the side protection mechanism in Embodiment 3 (the side protection mechanism is in the second state);

[0048] Appendix Figure 30 For the appendix Figure 29 sectional view along line AA;

[0049] Appendix Figure 31 This is a cross-sectional schematic diagram of the side protection mechanism of this embodiment 3 when it is switching between the first state and the second state.

[0050] Appendix Figure 32 This is a three-dimensional schematic diagram of the side protection mechanism in Embodiment 4 (the side protection mechanism is in the second state);

[0051] Appendix Figure 33 This is a cross-sectional schematic diagram of the side protection mechanism in Embodiment 4 (the side protection mechanism is in the second state);

[0052] Appendix Figure 34 This is a cross-sectional schematic diagram of the side protection mechanism in Embodiment 4 (the side protection mechanism is in the first state);

[0053] Appendix Figure 35 This is one of the cross-sectional schematic diagrams of the side protection mechanism in Embodiment 4 when it switches between the first and second states;

[0054] Appendix Figure 36 This is the second cross-sectional view of the side protection mechanism in Embodiment 4 when it switches between the first and second states.

[0055] The components include: 1. Seat body; 11. Base; 12. Seat; 13. Backrest; 14. Armrest; 15. Headrest; 2. Support component; 21. Main body; 211. Recess; 212. Guide groove; 213. Second locking groove; 22. End cap; 3. Base; 31. First locking groove; 32. Protrusion; 33. Guide post; 34. Receiving groove; 4. First locking pin; 5. Unlocking component; 51. Pressing part; 61. Second locking pin; 62. Fitting part; 7. Elastic component; 8. Stop block; 81. Third locking pin; 91. Diagonal brace; 92. Torsion spring. Detailed Implementation

[0056] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0057] In the following description, the directions "front," "back," "left," "right," "up," and "down" all refer to... Figure 2 In the figure, the left direction is "front", the right direction is "back", the top direction is "up", and the bottom 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 this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0058] Example 1

[0059] like Figures 1 to 7 As shown, the child safety seat of this utility model includes a seat body and a side protection mechanism.

[0060] The seat body includes a base 11 and a seat shell mounted on the base 11. The seat shell includes a seat 12, a backrest 13, and armrests 14. The seat 12 supports the child's buttocks, the backrest 13 supports the child's back, and the backrest 13 is located at the rear of the seat 12. The armrests 14 are located on the left and right sides of the seat 12, respectively. The seat body also includes a headrest 15 for supporting the child's head. Preferably, the headrest 15 is slidably mounted on the backrest 13, thereby adjusting the height of the headrest 15 on the backrest 13 so that the child safety seat can be used by children of different ages.

[0061] The side protection mechanism is located on the lower side of the seat shell, specifically on the side of the seat 12 or on the side of the armrest 14. This arrangement allows the impact load to be absorbed and transferred to the seat shell during a side impact. Because the impact load is absorbed away from the child's head, the child's head is less likely to swing left or right under inertia and impact the side of the child safety seat shell, thus reducing head injury and improving the protective effect of the side protection mechanism. Furthermore, the structural strength of the side of the seat 12 or the side of the armrest 14 is relatively good, and placing the side protection mechanism in these locations ensures good structural rigidity, further enhancing its ability to provide effective side protection.

[0062] The side protection mechanism has a first state and a second state. When the side protection mechanism is not in use, it is in the first state, in which case it is close to the side of the lower part of the seat shell, preventing it from becoming an obstruction inside the vehicle and preventing passengers next to the child safety seat from touching it. It also facilitates storage. Figures 1-3 As shown. When the side protection mechanism is in use, it is in its second state. In this state, the side protection mechanism extends outward from the lower side of the seat housing and supports itself on the outside of the seat housing, as shown. Figures 4-6 As shown, in the event of a side impact, the side protection mechanism can buffer the impact energy generated by the collision from the side of the car, thus achieving the purpose of protecting children from the side. Child safety seats have a central plane extending in the front-to-back direction. Here, the inner side refers to the side facing the central plane, and the outer side, conversely, refers to the side facing away from the central plane.

[0063] The side protection mechanism includes a support member 2. In this embodiment, the support member 2 is slidably disposed on the side of the lower part of the seat housing in a left-right direction. When the side protection mechanism is in the first state, the support member 2 is mostly housed within the lower part of the seat housing, such as... Figures 1-3As shown. When the side protection mechanism is in the second state, the support member 2 slides relative to the seat housing, with most of it extending from the side of the lower part of the seat housing to the outside of the seat housing, as shown. Figures 4-6 As shown.

[0064] The preferred support member 2 includes a main body 21 and an end cap 22 fixedly disposed at the end of the main body 21 away from the seat housing. The main body 21 is slidably disposed on the side of the lower part of the seat housing in the left-right direction, and the area of ​​the outer surface of the end cap 22 is not less than the cross-sectional area of ​​the main body 21 in the lateral direction. Thus, in the event of a side impact, the impact load first acts on the outer surface of the end cap 22. Because the outer surface of the end cap 22 has a relatively large area, it increases the contact area between the end cap 22 and the car door, thereby effectively absorbing the impact energy generated by the side impact and significantly reducing the impact force, thus providing better safety protection for the child.

[0065] Of course, the support member 2 may not have an end cap 22.

[0066] The side protection mechanism may also include a base 3, which is embedded in the side of the lower part of the seat shell, and the support member 2 is slidably connected to the base 3. This allows the side protection mechanism to be installed as a whole on the side of the lower part of the seat shell, making installation convenient. Furthermore, if the side protection mechanism is damaged, it can be replaced as a whole.

[0067] The base 3 is provided with a receiving groove 34. When the side protection mechanism is in the first state, the main body 21 of the support member 2 is wholly or mostly received in the receiving groove 34, such as... Figures 7-10 As shown. When the side protection mechanism is in the second state, most of the support member 2 extends out of the receiving groove 34, as... Figures 11-14 As shown.

[0068] The side protection mechanism also includes a first locking mechanism, which is disposed between the base 3 and the support member 2. When the side protection mechanism is in the second state, the first locking mechanism is locked, thereby locking the relative positions of the support member 2 and the base 3. When the first locking mechanism is unlocked, the support member 2 can slide relative to the base 3, thereby causing the side protection mechanism to switch to the first state. Of course, when the side protection mechanism does not include the base 3, the first locking mechanism can be disposed between the side of the lower part of the seat shell and the support member 2.

[0069] The first locking mechanism includes a first locking pin 4 movably disposed on one of the base 3 and the support member 2, and a first locking groove 31 disposed on the other. When the first locking mechanism is in the locked state, the first locking pin 4 is inserted into the first locking groove 31, as shown below. Figure 14 As shown. When the first locking mechanism is in the unlocked state, the first locking pin 4 disengages from the first locking groove 31, as... Figure 10 As shown.

[0070] The first locking groove 31 can be provided in multiple positions along the sliding direction of the support member 2 relative to the base 3. This allows the support member 2 to extend to different positions on the side of the lower part of the seat shell, thereby enabling the side protection mechanism to be adjusted in multiple positions. This allows the side protection mechanism to be positioned in a suitable position according to the distance between the child safety seat and the car door, achieving a better side protection effect while ensuring installation.

[0071] The side protection mechanism also includes an unlocking mechanism. When the first locking mechanism is in the locked state, operating the unlocking mechanism can unlock the first locking mechanism. The unlocking mechanism includes an unlocking member 5 rotatably mounted on the base 3 or support member 2. A first locking pin 4 is located at one end of the unlocking member 5, and the other end of the unlocking member 5 is provided with a pressing part 51 for manual pressing during unlocking. When the first locking mechanism is in the locked state, pressing the pressing part 51 causes the unlocking member 5 to rotate relative to the base 3 or support member 2, thereby disengaging the first locking pin 4 from the first locking groove 31, and thus unlocking the first locking mechanism.

[0072] The side protection mechanism may further include a second locking mechanism disposed between the support member 2 and the base 3. When the side protection mechanism is in the first state, the second locking mechanism is in a locked state, thereby locking the relative positions of the support member 2 and the base 3. When the second locking mechanism is unlocked, the support member 2 can slide relative to the support 3, thereby changing the side protection mechanism to the second state. Similar to the first locking mechanism, when the side protection mechanism does not include the base 3, the second locking mechanism may be disposed between the side of the lower part of the seat housing and the support member 2.

[0073] Of course, the second locking mechanism can be omitted. When the side protection mechanism is in the first state, the support member 2 can be retracted into the receiving groove 34 of the base 3.

[0074] When a second locking mechanism is provided, the side protection mechanism may also include an elastic element 7, which is disposed between the support member 2 and the base 3. When the second locking mechanism is unlocked, the support member 2 can automatically slide towards the receiving groove 34 extending out of the base 3 under the elastic force of the elastic element 7. That is, after the second locking mechanism is unlocked in the first state, the side protection mechanism can automatically switch to the second state through the elastic force of the elastic element 7, thus making it convenient for the side protection mechanism to switch between the first and second states.

[0075] Example 2

[0076] In this embodiment, such as Figures 15-20 As shown, one end of the support member 2 is rotatably connected to the side of the lower part of the seat housing, i.e., the side of the seat 12 or the side of the lower part of the armrest 14.

[0077] In this embodiment, the first locking mechanism includes a protrusion 32 disposed on one of the base 3 and the support 2, and a recess 211 disposed on the other. When the first locking mechanism is in the locked state, the protrusion 32 is inserted into the recess 211, as shown below. Figure 20 As shown. When the first locking mechanism is in the unlocked state, the protrusion 32 disengages from the recess 211, as... Figure 17 As shown.

[0078] In this embodiment, the support member 2 can also be slidably disposed relative to the base 3, so that the protrusion 32 can disengage from or enter the recess 211. That is, the first locking mechanism can be unlocked or locked by sliding the support member 2 relative to the base 3, which simplifies the structure of the child safety seat.

[0079] A guide structure is also provided between the support member 2 and the base 3 to guide and limit the sliding of the support member 2 when it slides relative to the base 3 to lock or unlock the first locking mechanism. The guide structure includes a guide post 33 on one of the support member 2 and the base 3, and a guide groove 212 on the other. The guide post 33 is located in the guide groove 212 and can slide along it. When the first locking mechanism is in the locked state, the guide post 33 is located at one end of the guide groove 212, such as... Figure 20 As shown. When the first locking mechanism is in the unlocked state, the guide post 33 is located at the other end of the guide groove 212, as... Figure 17 As shown.

[0080] In this embodiment, the second locking mechanism adopts a press-type elastic self-locking mechanism, which has a simple structure and is very convenient for locking and unlocking operations. Specifically, it includes a second locking pin 61 and a mating part 62 that detachably engages with the second locking pin 61. When the second locking mechanism is in the locked state, the second locking pin 61 engages with the mating part 62, as follows: Figure 17 As shown. When the second locking mechanism is in the unlocked state, the second locking pin 61 disengages from the mating part 62, as... Figure 20 As shown.

[0081] Similar to Embodiment 1, the side protection mechanism may also include an elastic element 7, so that after the second locking mechanism is unlocked, the support 2 automatically rotates away from the base 3, thereby causing the side protection mechanism to switch to the second use state.

[0082] In this embodiment, when the side protection mechanism transitions from the first state to the second state, pressing the second locking pin 61 unlocks the second locking mechanism. The support member 2 then automatically moves away from the base 3 under the elastic force of the elastic member 7 until it reaches the position where the side protection mechanism is in the second state. This allows the support member 2 to slide relative to the base 3, thereby inserting the protrusion 32 into the recess 211, thus locking the first locking mechanism. Figure 20 As shown. At this time, the side protection mechanism is in the second state.

[0083] When the side protection mechanism transitions from the second state to the first state, the support member 2 slides relative to the base 3, thereby disengaging the protrusion 32 from the recess 211, and the first locking mechanism is unlocked; the support member 2 is rotated toward the base 3 until the side protection mechanism is in the first state, and the second locking mechanism is locked.

[0084] Example 3

[0085] In this embodiment, the side protection mechanism further includes a stop 8. One end of the stop 8 is rotatably connected to the end of the support member 2 away from the seat housing.

[0086] When the side protection mechanism is in its first operating state, the support member 2 and the stop block 8 are mostly housed in the receiving groove 34, and both are close to the side of the lower part of the seat shell, forming a first included angle between the support member 2 and the stop block 8. Figures 21-23 and Figure 25 As shown. Preferably, the support member 2 and the stop block 8 extend in the same direction, and the outer side of the support member 2 and the outer side of the stop block 8 are both located inside the outer side of the lower side of the seat housing; or, the outer side of the support member 2, the outer side of the stop block 8, and the outer side of the lower side of the seat housing are located in the same plane, which makes the child safety seat aesthetically pleasing, and the side protection mechanism will not affect the passenger sitting next to the child safety seat when in use. When the side protection mechanism is in the second use state, the support member 2 and the stop block 8 are both disengaged from the receiving groove 34 and extend to the outer side of the lower side of the seat housing. The support member 2 and the stop block 8 extend in different directions, forming a second angle between them. The first angle and the second angle are different, such as... Figures 26-28 and Figure 30 As shown.

[0087] When the side protection mechanism is in its second operating state, the extension direction of the stop block 8 is parallel to the central plane of the child safety seat, or inclined relative to that central plane, preferably with an inclination angle not exceeding 20°. The outer side of the stop block 8 is located outside the outer side of the support member 2, or the outer side of the stop block 8 and the outer side of the support member 2 are located in the same plane. The area of ​​the outer side of the stop block 8 is not less than the cross-sectional area of ​​the support member 2 in the lateral direction. In this way, when a side impact occurs, the impact load first acts on the outer side of the stop block 8. Since the area of ​​the outer side of the stop block 8 is relatively large, it can increase the contact area between it and the car door, thereby effectively absorbing the impact energy generated by the side impact, greatly reducing the impact force, and thus providing better safety protection for the child.

[0088] By rotating the support member 2 relative to the side of the lower part of the seat housing, the stop block 8 can be rotated relative to the support member 2, allowing the side protection mechanism to switch between the first and second states.

[0089] The stop block 8 can also be slidably and rotatably connected to the support member 2. Alternatively, the stop block 8 can be detachably connected to the support member 2.

[0090] The side protection mechanism also includes a limiting structure, which is set between the support member 2 and the stop block 8. Due to the setting of the limiting structure, when the side protection mechanism transitions from the first state to the second state, after the support member 2 drives the stop block 8 to rotate to the set position, the stop block 8 can only rotate in one direction in the direction that causes the side protection mechanism to transition to the second state, and cannot rotate in the opposite direction.

[0091] This embodiment also includes a third locking mechanism, which is disposed between the support member 2 and the stop block 8. When the side protection mechanism is in the second state, the third locking mechanism is in a locked state, thereby locking the relative positions of the support member 2 and the stop block 8. When the third locking mechanism is unlocked, the stop block 8 can rotate relative to the support member 2, thereby causing the side protection mechanism to switch to the first state.

[0092] The third locking mechanism includes a third locking pin 81 fixedly disposed on one of the support member 2 and the stop block 8, and a second locking groove 213 disposed on the other. When the third locking mechanism is in the locked state, the third locking pin 81 engages with the second locking groove 213, as shown below. Figure 30 As shown. When the third locking mechanism is in the unlocked state, the third locking pin 81 disengages from the second locking groove 213, as... Figure 25 As shown.

[0093] In this embodiment, the second locking groove 213 can undergo a certain degree of elastic deformation, so that the third locking pin 81 can enter the second locking groove 213 or disengage from the second locking groove 213.

[0094] The rest is the same as in Example 2.

[0095] When the side protection mechanism is locked in the first state by the second locking mechanism, due to the limiting structure between the support member 2 and the stop block 8, it is not necessary to lock the position of the support member 2 and the stop block 8, and the stop block 8 can be kept close to the base 3, which makes the structure of the child safety seat simple.

[0096] In this embodiment, when the side protection mechanism transitions from the first state to the second state, after the support member 2 rotates to the position where the side protection mechanism is in the second state, the support member 2 causes the stop block 8 to slide relative to the base 3, thereby inserting the protrusion 32 into the recess 211, i.e., the first locking mechanism locks it in place. Figure 31As shown; rotate the stop block 8 relative to the support member 2 until the stop block 8 moves to the position where the side protection mechanism is in the second state, and the second locking mechanism locks. At this time, the side protection mechanism is in the second state.

[0097] When the side protection mechanism transitions from the second state to the first state, the stop block 8 rotates in the opposite direction relative to the support member 2, thereby unlocking the second locking mechanism, until the stop block 8 rotates relative to the support member 2 to the position where the side protection mechanism is in the first state. Figure 31 As shown; the support member 2 drives the stop block 8 to slide relative to the base 3, thereby causing the protrusion 32 to disengage from the recess 211, and the first locking mechanism is unlocked; the support member 2 and the stop block 8 are rotated together in the direction of approaching the base 3 until the side protection mechanism is in the first state, and the second locking mechanism is locked.

[0098] Example 4

[0099] In this embodiment, such as Figures 32-36 As shown, the side protection mechanism may further include a strut assembly, which is connected to the support member 2 or the base 3 and the stop block 8 respectively. When the side protection mechanism is in the second state, the strut assembly stands between the support member 2 or the base 3 and the stop block 8 to support the stop block 8, thereby improving the load-bearing capacity of the stop block 8, resulting in better structural strength of the side protection mechanism and improving its buffering and energy absorption effect. Figure 32 and Figure 33 As shown. When the side protection mechanism is in the first state, the strut assembly retracts between the support member 2 or base 3 and the stop block 8, and respectively approaches the support member 2 or base 3 and the stop block 8, as shown. Figure 34 As shown.

[0100] Specifically, such as Figures 32-36 As shown, in this embodiment, the support rod assembly includes a diagonal support rod 91. One end of the diagonal support rod 91 is rotatably connected to the stop block 8, and the other end of the diagonal support rod 91 is rotatably and slidably mounted on the base 3. When the stop block 8 rotates relative to the support member 2, causing the side protection mechanism to switch between a first state and a second state, the diagonal support rod 91 can rotate and slide relative to the stop block 8 and the base 3, thereby standing upright between the stop block 8 and the base 3, or approaching the stop block 8 and the base 3 respectively. Conversely, one end of the diagonal support rod 91 can also be rotatably connected to the base 3, allowing the other end of the diagonal support rod 91 to be rotatably and slidably mounted on the stop block 8. Alternatively, the diagonal support rod 91 can be movably connected to the stop block 8 and the support member 2.

[0101] The strut assembly also includes a torsion spring 92, which is disposed between the stop block 8 and the diagonal strut 91 to drive the diagonal strut 91 to rotate automatically away from the stop block 8. The torsion spring 92 can also be replaced by other elastic elements.

[0102] Alternatively, in other embodiments, one end of the diagonal brace 91 may be rotatably connected to one of the support member 2 or the base 3 and the stop block 8, and the other end of the diagonal brace 91 may be detachably connected to the other of the support member 2 or the base 3 and the stop block 8. When the side protection mechanism is in the second state, both ends of the diagonal brace 91 are connected to the support member 2 or the base 3 and the stop block 8, respectively. When the side protection mechanism is in the first state, the detachable connection between the other end of the diagonal brace 91 and the support member 2, the base 3, or the stop block 8 is disengaged, and the diagonal brace 91 rotates relative to one of the support member 2 or the base 3 and the stop block 8 to approach it.

[0103] Of course, without the base 3, the diagonal brace 91 can be connected to the side of the lower part of the seat shell. The brace assembly is not limited to the structure given above, and other structural forms can also be adopted.

[0104] Example 5

[0105] In this embodiment, the support member 2 is slidably disposed on the side of the lower part of the seat housing. The support member 2 is slidably connected to the seat housing in the same way as in Embodiment 1, and otherwise the same as in Embodiment 3.

[0106] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A child safety seat, characterized in that: The device includes a seat housing and a side protection mechanism disposed on the side portion of the lower part of the seat housing. The side protection mechanism has a first state and a second state. When the side protection mechanism is in the first state, the side protection mechanism is close to the side portion of the lower part of the seat housing. When the side protection mechanism is in the second state, the side protection mechanism is at least partially away from the side portion of the lower part of the seat housing and stands on the outside of the side portion of the lower part of the seat housing.

2. The child safety seat according to claim 1, characterized in that: The side protection mechanism includes a support member whose end is movably connected to the side of the lower part of the seat housing; when the side protection mechanism is in a first state, the support member is close to the side of the lower part of the seat housing; when the side protection mechanism is in a second state, the support member is away from the side of the lower part of the seat housing and stands on the outside of the side of the lower part of the seat housing.

3. The child safety seat according to claim 2, characterized in that: The side protection mechanism further includes a first locking mechanism, which is disposed between the side portion of the lower part of the seat housing and the support member to lock the position of the support member when the side protection mechanism is in the second state; And / or, the side protection mechanism further includes a second locking mechanism disposed between the support member and the side portion of the lower part of the seat housing to lock the position of the support member when the side protection mechanism is in the first state; the side protection mechanism further includes an elastic member disposed between the support member and the side portion of the lower part of the seat housing, such that after the second locking mechanism is unlocked, the support member automatically moves away from the side portion of the lower part of the seat housing.

4. The child safety seat according to claim 2, characterized in that: The side protection mechanism further includes a stop block movably connected to the other end of the support member; when the side protection mechanism is in a first state, both the support member and the stop block are close to the side of the lower part of the seat housing, and a first angle is formed between the support member and the stop block; when the side protection mechanism is in a second state, both the support member and the stop block are away from the side of the lower part of the seat housing, the support member and the stop block extend in different directions, and a second angle is formed between the support member and the stop block, the first angle and the second angle being different; And / or, the side protection mechanism further includes a strut assembly movably connected to the stop; when the side protection mechanism is in the second state, the strut assembly is supported between the stop and the side portion of the lower part of the seat housing, or the strut assembly is supported between the stop and the support member; When the side protection mechanism is in the first state, the strut assembly is close to the stop or the support member.

5. The child safety seat according to claim 4, characterized in that: When the side protection mechanism is in the second state, the outer side of the stop block is located outside the outer side of the support member, or the outer side of the stop block and the outer side of the support member are located in the same plane; And / or, when the side protection mechanism is in the second state, the area of ​​the outer side of the stop is not less than the cross-sectional area of ​​the support in the lateral direction.

6. The child safety seat according to claim 4, characterized in that: When the side protection mechanism is in the first state, the stop and the support extend in the same direction.

7. The child safety seat according to claim 4, characterized in that: The side protection mechanism further includes a third locking mechanism disposed between the support member and the stop block to lock the relative positions of the support member and the stop block when the side protection mechanism is in the second state.

8. The child safety seat according to claim 2, characterized in that: The support member includes a main body and an end cap fixedly disposed at one end of the main body away from the seat housing. The main body is slidably disposed on the side of the lower part of the seat housing in the left-right direction, and the area of ​​the outer side of the end cap is not less than the cross-sectional area of ​​the main body in the lateral direction.

9. The child safety seat according to any one of claims 2 to 8, characterized in that: The side protection mechanism further includes a base fixedly disposed on the side of the lower part of the seat shell, the support member being movably connected to the base, and the base being provided with a receiving groove; when the side protection mechanism is in the first state, the support member is wholly or partially received in the receiving groove; When the side protection mechanism is in the second state, the support member is away from the base.

10. The child safety seat according to any one of claims 1 to 8, characterized in that: The seat housing includes a seat, a backrest disposed at the rear of the seat, and armrests disposed on the left and right sides of the seat respectively. The side protection mechanism is disposed on the side of the seat, or the side protection mechanism is disposed on the side of the lower part of the armrest.

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