Chair back sideslip deflection structure and child safety seat

Abstract

The utility model relates to the field of automobile safety supplies, and discloses a seat back sideslip deflection structure and a child safety seat. The chair comprises a base and a chair back, the chair back is connected with the base in a sliding mode, the chair back is suitable for extending out of the side of the base, the base or the chair back is provided with a rotating part, and when the chair back laterally slides to be in an extending state, the chair back rotates clockwise or anticlockwise relative to the base under the action of the rotating part so that the chair back can deflect towards the rear end or the front end of the base. After the chair back slides out by a certain distance in a sideslip mode, the chair back can rotate relative to the base to generate deviation, then obstacles encountered when the chair back slides out along a straight line in a sideslip mode are avoided, and the operation flexibility after the chair back slides out in a sideslip mode is improved; the structure is simple and the cost is low; and on the premise that the riding comfort is improved, the interaction experience of children and passengers is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile safety products, specifically relates to a chair back side slide deflection structure and child safety seat. BACKGROUND

[0002] The child safety seat comprises a base and a chair back, and the chair back can rotate relative to the base to realize adjustment of an orientation angle. When the chair back is oriented towards a corresponding door, the chair back can also extend outwards relative to the base to a state of overhanging towards the door, so that it is more convenient to hold a child. The chair back can only slide outwards along a straight line in the prior art. However, because the structures at the C pillars of different vehicle models are different, when the chair back slides outwards along a straight line, the space for sliding out of the chair back is relatively cramped for some vehicle models, or the sliding out of the chair back is obstructed, and thus the flexibility of operation after the chair back slides outwards is affected. SUMMARY

[0003] To solve at least one of the above problems, the utility model first provides a chair back side slide deflection structure, which comprises a base and a chair back. The chair back is connected to the base in a sliding manner, and the chair back is adapted to extend outwards from the side of the base. The base or the chair back is provided with a rotating part. When the chair back slides outwards, the chair back rotates clockwise or counterclockwise relative to the base under the action of the rotating part, so as to be adapted to deflect the chair back towards the rear end or the front end of the base.

[0004] Optionally, the base is provided with a straight line guide part. The chair back slides outwards along a straight line relative to the base under the action of the straight line guide part. The rotating part is arranged at the end of the straight line guide part, and the rotating part is in communication with the straight line guide part.

[0005] Optionally, the straight line guide part comprises a first straight line part and a second straight line part which are arranged in parallel and are spaced apart. The rotating part comprises a first deflection part and a second deflection part. The first deflection part is located at the end of the first straight line part and is in communication with the first straight line part. The second deflection part is located at the end of the second straight line part and is in communication with the second straight line part. The end of the first deflection part that is away from the first straight line part and the end of the second deflection part that is away from the second straight line part are close to each other.

[0006] Optionally, the first straight line part and the second straight line part are both straight line long grooves, and the first deflection part and the second deflection part are both arc-shaped grooves. First and second matching columns are arranged at the bottom of the chair back in a spaced apart manner, and the first and second matching columns are respectively inserted into the first and second straight line parts.

[0007] Optionally, when the first matching column is located at one end of the first linear part close to the first deflection part, the second matching column is adapted to move to the second deflection part to drive the chair back to deflect; when the second matching column is located at one end of the second linear part close to the second deflection part, the first matching column is adapted to move to the first deflection part to drive the chair back to reverse deflect.

[0008] Optionally, the base comprises a mounting seat adapted to be connected with the car seat and a rotating seat located at the top of the mounting seat and rotationally connected with the mounting seat, the chair back is slidingly connected with the rotating seat and rotates synchronously, and the rotating part is arranged on the rotating seat to drive the chair back to rotate relative to the rotating seat.

[0009] Optionally, a side sliding groove is formed at the top of the rotating seat and penetrates the rotating seat along the axial direction of the rotating seat, and the chair back is oriented to slide in the side sliding groove.

[0010] Optionally, a rotating accommodation groove is formed in each of the two groove walls at one end of the side sliding groove, and the rotating accommodation groove is located at one end of the side sliding groove close to the rotating part, and when the chair back rotates relative to the rotating seat, the rotating accommodation groove is adapted to provide the chair back with a rotating space.

[0011] Optionally, an installation groove is formed at the top of the mounting seat, the rotating seat is rotationally arranged in the installation groove, a accommodation notch is formed in the outer wall of the mounting seat, and the two rotating accommodation grooves are located in the range of the accommodation notch.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0013] 1. After the chair back slides out a certain distance, the chair back can rotate relative to the base to deflect, thereby avoiding obstacles encountered when the chair back slides out along a straight line, and improving the operation flexibility after the chair back slides out.

[0014] 2. Since the base can be installed on the left side or the right side of the rear seat of the car, the chair back can rotate to the rear end or the front end of the base after sliding out, so that the chair back can be rotated to the front end of the base according to the selection regardless of whether the base is located on the left side or the right side of the car seat, thereby widening the operation space after the chair back slides out.

[0015] 3. The linear guide part is arranged as a linear long groove, and the rotating part is arranged as an arc-shaped groove, so that the structure is simple and the cost is low, and the first matching column and the second matching column can make the chair back move or deflect in a certain direction, thereby improving the stability and smoothness when the chair back slides out.

[0016] 4. When the vehicle is stationary, if a child on the seat back interacts with the passenger next to them, the seat back can slide out to the side towards the passenger next to them and rotate a certain angle towards the rear of the car. This ensures that the passenger remains within the child's line of sight while leaning against the car seat back, without the child needing to turn their head. This improves both the comfort of the ride and the interaction experience between the child and the passenger.

[0017] 5. After the seat back slides out to the side and rotates and shifts towards the front of the base, the space between the seat back and the rear seat back of the car is relatively large, making it easier for users to pick up children from the seat back.

[0018] In addition, this utility model provides a child safety seat, including the backrest side sliding and deflection structure as described above.

[0019] Compared to existing technologies, the child safety seat described in this utility model has the same advantages as the aforementioned backrest side-sliding and deflection structure, which will not be repeated here. Attached Figure Description

[0020] Figure 1 This is an exploded view of the base and backrest in an embodiment of this utility model;

[0021] Figure 2 This is a structural diagram of the rotating seat and the rotating part in an embodiment of this utility model;

[0022] Figure 3 This is a structural diagram of the bottom of the chair back in an embodiment of this utility model;

[0023] Figure 4 This is a cross-sectional view of the chair back after it has been rotated relative to the base in an embodiment of this utility model. Figure 1 ;

[0024] Figure 5 This is the structure of the chair back after it rotates relative to the base in this embodiment of the utility model. Figure 1 ;

[0025] Figure 6 This is a cross-sectional view of the chair back after it has been rotated relative to the base in an embodiment of this utility model. Figure 2 ;

[0026] Figure 7 This is the structure of the chair back after it rotates relative to the base in this embodiment of the utility model. Figure 2 .

[0027] Explanation of reference numerals in the attached drawings: 1. Base; 11. Mounting seat; 111. Mounting groove; 112. Relief notch; 12. Rotating seat; 121. Side sliding groove; 122. Rotating relief groove; 2. Chair back; 21. First mating post; 22. Second mating post; 3. Rotating part; 31. First deflection part; 32. Second deflection part; 4. Linear guide part; 41. First linear part; 42. Second linear part. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figures 1-7 This application will be described in further detail.

[0029] In a first aspect, this utility model embodiment provides a chair back side sliding deflection structure, referring to... Figure 1 and Figure 2 The backrest side-sliding and deflecting structure includes a base 1 and a backrest 2. The backrest 2 is slidably connected to the base 1, and the backrest 2 is adapted to extend to the side of the base 1. The base 1 is provided with a rotating part 3. When the backrest 2 is in the extended side-sliding state, the backrest 2 will rotate clockwise or counterclockwise relative to the base 1 under the action of the rotating part 3, so as to deflect the backrest 2 toward the rear end or front end of the base 1.

[0030] The base 1 includes a mounting base 11 and a rotating base 12. The mounting base 11 is adapted to be connected and fixed to a car seat. The rotating base 12 is located on top of the mounting base 11 and is rotatably connected to the mounting base 11. The seat back 2 is connected to the rotating base 12 and rotates synchronously with the rotating base 12, thereby allowing the orientation of the seat back 2 to be adjusted. In addition, the seat back 2 is slidably connected to the rotating base 12. When the seat back 2 rotates to the side of the mounting base 11 and faces the car door, the seat back 2 can move relative to the rotating base 12 to extend out of the mounting base 11. A rotating device (not shown in the figure) is installed inside the mounting base 11, and the rotating base 12 is connected to the rotating device, which drives the rotating base 12 to rotate automatically. The rotating device is prior art and well known to those skilled in the art; therefore, the specific structure of the rotating device will not be described here.

[0031] Reference Figure 1 and Figure 2 The mounting base 11 has a mounting groove 111 on its top, and the rotating base 12 is rotatably disposed within the mounting groove 111, thereby reducing the space occupied by the rotating base 12 on the mounting base 11 and making the overall base 1 smaller in size. The rotating base 12 has a side sliding groove 121 on its top, which extends through the rotating base 12 along its axial direction, allowing the chair back 2 to slide directionally within the side sliding groove 121. Since the rotating base 12 is located within the mounting groove 111, two opposite outer side walls of the mounting base 11 have clearance notches 112, both of which communicate with the side sliding groove 121, so that the mounting base 11 does not interfere with the lateral movement of the chair back 2.

[0032] Reference Figure 1 and Figure 2 In this embodiment, the rotating part 3 is preferably located at the bottom of the side sliding groove 121. Since the rotating part 3 is located at the bottom of the side sliding groove 121, the bottom of the side sliding groove 121 is also provided with a straight guide part 4. The rotating part 3 is located at the end of the straight guide part 4, and the rotating part 3 is connected to the straight guide part 4. When the chair back 2 slides sideways, it first slides out along a straight line relative to the base 1 under the action of the straight guide part 4; then, the chair back 2 rotates relative to the rotating seat 12 under the action of the rotating part 3, realizing the offset adjustment of the angle after sliding out.

[0033] Reference Figure 1 and Figure 2 In detail, the linear guide portion 4 includes a first linear portion 41 and a second linear portion 42 arranged at intervals and in parallel. The extending directions of the first linear portion 41 and the second linear portion 42 are consistent with the extending direction of the side sliding groove 121. The rotating portion 3 includes a first deflection portion 31 and a second deflection portion 32, both located at the same end of the side sliding groove 121 along its extending direction. The first deflection portion 31 is located at one end of the first linear portion 41 and communicates with it; the second deflection portion 32 is located at one end of the second linear portion 42 and communicates with it. The ends of the first deflection portion 31 and the second deflection portion 32 that are away from the first linear portion 41 are close to each other, thereby allowing the chair back 2 to shift in different directions under the action of the first deflection portion 31 and the second deflection portion 32.

[0034] Reference Figure 2 and Figure 3 In this embodiment, the first straight section 41 and the second straight section 42 are preferably both straight long grooves, and the first deflection section 31 and the second deflection section 32 are both arc-shaped grooves. A first mating post 21 and a second mating post 22 are fixedly connected to the bottom of the chair back 2, and the first mating post 21 and the second mating post 22 are arranged at intervals. The first mating post 21 and the second mating post 22 are respectively inserted into the first straight section 41 and the second straight section 42 to enable stable directional movement of the chair back 2.

[0035] When the chair back 2 slides out along a straight line, the first mating post 21 and the second mating post 22 move synchronously within the first straight section 41 and the second straight section 42, respectively.

[0036] Reference Figures 3 to 7When the chair back 2 slides out to the side and the first mating post 21 is located at the end of the first straight section 41 near the first deflection section 31, and the second mating post 22 is also located at the end of the second straight section 42 near the second deflection section 32, the user can drive the chair back 2 to rotate as needed. The chair back 2 can rotate around the first mating post 21 or around the second mating post 22. Specifically, when the chair back 2 rotates around the first mating post 21, the second mating post 22 is adapted to move to the second deflection section 32 to drive the chair back 2 to deflect; when the chair back 2 rotates around the second mating post 22, the first mating post 21 is adapted to move to the first deflection section 31 to drive the chair back 2 to deflect in the opposite direction.

[0037] In another embodiment, the rotating part 3 and the linear guide part 4 are located at the bottom of the chair back 2, while the first mating post 21 and the second mating post 22 are fixedly mounted on the rotating base 12. In yet another embodiment, the rotating part 3 is an arc-shaped track; and the linear guide part 4 is a linear track. Both the arc-shaped track and the linear track are bolted to the rotating base 12. The bottom of the base 1 does not have the first mating post 21 and the second mating post 22. Instead, a slider is bolted on, which can slide smoothly on the linear track and the arc-shaped track, thereby allowing the chair back 2 to be rotated and adjusted after sliding out along a straight line.

[0038] Reference Figure 1 and Figure 2 Since the backrest 2 moves within the side sliding groove 121 and can rotate relative to the rotating seat 12 under the action of the rotating part 3, a rotation relief groove 122 is provided on each of the two groove walls opposite to one end of the side sliding groove 121. The rotation relief groove 122 is located at the end of the side sliding groove 121 near the rotating part 3. When the backrest 2 rotates relative to the rotating seat 12, the rotation relief groove 122 is suitable to allow the backrest 2 to have rotation space.

[0039] In addition, both rotating clearance grooves 122 are located within the clearance notch 112, which makes it less likely for the clearance notch 112 and the entire base 1 to interfere with the chair back 2 when it rotates relative to the rotating seat 12, thus improving the smoothness of the chair back 2 when it slides out and rotates for adjustment.

[0040] The implementation principle of the side-sliding and deflecting structure of the seat back in this application embodiment is as follows: After the base 1 is installed on the car seat, the side of the base 1 near the car door is separated from the side of the car seat near the car door by a certain distance, so there is a certain space to allow the seat back 2 to slide out a certain distance first.

[0041] When the seat back 2 slides to the side, it first slides out in a straight line under the action of the straight guide part 4. The length of the straight guide part 4 is less than the length of the existing straight guide rail that drives the seat back 2 to slide to the side. This allows the seat back 2 to be separated from the structure that forms an obstacle at the C-pillar of the car door after it has fully slid out, making it less likely to collide with the obstacle. When the seat back 2 moves to the end of the straight guide part 4 near the rotating part 3, the seat back 2 can rotate around the rear end or front end of the base 1 about the first mating post 21 or the second mating post 22 as the rotation axis to form an offset. This widens the operating space after the seat back 2 slides out to the side and improves the operating flexibility after the seat back 2 slides out to the side.

[0042] Secondly, another embodiment of the present invention provides a child safety seat that adopts the backrest side sliding and deflection structure described in the first aspect.

[0043] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0044] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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 disclosure.

[0045] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0047] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A chair back side slide deflection structure characterized by: The chair comprises a base (1) and a backrest (2), the backrest (2) is slidably connected with the base (1), and the backrest (2) is adapted to extend from the side of the base (1), the base (1) or the backrest (2) is provided with a rotating part (3), when the backrest (2) slides to the extended state, the backrest (2) will rotate clockwise or counterclockwise relative to the base (1) under the action of the rotating part (3), so as to deflect the backrest (2) to the rear end or the front end of the base (1).

2. The chair back side slide deflection structure of claim 1, wherein: The base (1) is provided with a linear guide part (4), the backrest (2) slides along a straight line relative to the base (1) under the action of the linear guide part (4), the rotating part (3) is arranged at the end of the linear guide part (4), and the rotating part (3) is communicated with the linear guide part (4).

3. The chair back side slide deflection structure of claim 2, wherein: The linear guide part (4) comprises a first linear part (41) and a second linear part (42) arranged in parallel and spaced apart, the rotating part (3) comprises a first deflection part (31) and a second deflection part (32), the first deflection part (31) is located at the end of the first linear part (41) and communicated with the first linear part (41), the second deflection part (32) is located at the end of the second linear part (42) and communicated with the second linear part (42), and the end of the first deflection part (31) away from the first linear part (41) and the end of the second deflection part (32) away from the second linear part (42) are close to each other.

4. The chair back side slide deflection structure of claim 3, wherein: The first linear part (41) and the second linear part (42) are both linear long grooves, the first deflection part (31) and the second deflection part (32) are both arc grooves, the bottom of the backrest (2) is provided with a first matching column (21) and a second matching column (22) in parallel and spaced apart, and the first matching column (21) and the second matching column (22) are respectively inserted into the first linear part (41) and the second linear part (42).

5. The chair back side slide deflection structure of claim 4, wherein: When the first matching column (21) is located at the end of the first linear part (41) close to the first deflection part (31), the second matching column (22) is adapted to move to the second deflection part (32) to drive the backrest (2) to deflect, and when the second matching column (22) is located at the end of the second linear part (42) close to the second deflection part (32), the first matching column (21) is adapted to move to the first deflection part (31) to drive the backrest (2) to deflect reversely.

6. The seat back side slide deflection structure of any of claims 1-5, wherein: The base (1) comprises a mounting seat (11) and a rotating seat (12), the mounting seat (11) is adapted to be connected with a car seat, the rotating seat (12) is located at the top of the mounting seat (11), the rotating seat (12) is rotationally connected with the mounting seat (11), the backrest (2) is slidably connected with the rotating seat (12) and rotates synchronously, and the rotating part (3) is arranged on the rotating seat (12) to drive the backrest (2) to rotate relative to the rotating seat (12).

7. The chair back side slide deflection structure of claim 6, wherein: The rotating seat (12) is provided with a side sliding groove (121) on the top, the side sliding groove (121) penetrates the rotating seat (12) along the axial direction of the rotating seat (12), and the chair back (2) is oriented to slide in the side sliding groove (121).

8. The chair back side slide deflection structure of claim 7, wherein: Two groove walls opposite to each other at one end of the side sliding groove (121) are both provided with a rotating displacement groove (122), the rotating displacement groove (122) is located at one end of the side sliding groove (121) close to the rotating part (3), and when the chair back (2) rotates relative to the rotating seat (12), the rotating displacement groove (122) is suitable for the chair back (2) to have a rotating space.

9. The chair back side slide deflection structure of claim 8, wherein: The mounting seat (11) is provided with a mounting groove (111) on the top, the rotating seat (12) is rotatably arranged in the mounting groove (111), and the outer side wall of the mounting seat (11) is provided with a displacement gap (112), and the two rotating displacement grooves (122) are both located in the range of the displacement gap (112).

10. A child safety seat, characterized in that The chair back side sliding deflection structure comprises the chair back side sliding deflection structure according to any one of claims 1-9.

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