Lateral sliding backrest and base separation mechanism of child safety seat

Abstract

The invention discloses a backrest and base separating mechanism for lateral sliding of a child safety seat, and relates to the field of safety seats. According to the technical scheme, the backrest and base separating mechanism comprises a base, a rotating disc and a backrest; the base is rotationally matched with the turntable; the turntable is provided with a first guide rail and a first sliding piece; the bottom of the backrest is matched with the rotary table, the backrest is provided with a second guide rail and a second sliding part, the second guide rail is parallel to the first guide rail, the second sliding part is in sliding fit with the first guide rail, and the first sliding part is in sliding fit with the second guide rail. A locking assembly is arranged between the rotating disc and the backrest and used for limiting the backrest to slide in the direction of the first guide rail. The backrest and the base are separated in a sideslip mode, the guide rails are matched with the buckles to lock the base, dismounting and mounting are very convenient, the two guide rails and the sliding pieces are matched with each other, and stability is high.

Description

Technical Field

[0001] The present invention relates to the field of safety seats, and particularly to a backrest and base separation mechanism for a child safety seat with lateral sliding. Background Art

[0002] An automobile safety seat is a tool for children to ride in a vehicle, which can restrain children to ensure their safety after the vehicle is impacted externally. A safety seat usually includes a backrest and a seat, the backrest is fixed to the seat, and the seat is fixed to the automobile. Usually, for maintenance or other considerations, the backrest and the seat are detachably fixed. The common cooperation methods between the backrest and the seat are as follows: A 360° rotation and sliding-out mechanism of a child safety seat disclosed in the patent document with the publication number CN221678570U adopts a guide rail cooperation, and the guide rail mostly adopts a single lateral C-shaped rail, that is, the seat is buckled from both sides. There are safety hazards in actual use of this solution because the overall mass of the seat plus the child is very large. When impacted externally, a huge impulse will be generated. When the single lateral C-shaped rail receives a large impulse, it is very easy to curl up and lose the limiting effect, resulting in the separation of the seat and the backrest, and the reliability is poor. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a backrest and base separation mechanism for a child safety seat with lateral sliding, which separates the backrest and the base in a lateral sliding manner, and the guide rail and the buckle cooperate to lock the base, and the disassembly and installation are very convenient. The two guide rails and the sliding parts cooperate with each other, and the stability is high.

[0004] The technical solution adopted by the present invention to solve its technical problems is: A backrest and base separation mechanism for a child safety seat with lateral sliding, including a base, a turntable and a backrest;

[0005] The base is rotationally matched with the turntable;

[0006] The turntable is provided with a first guide rail and a first sliding part;

[0007] The bottom of the backrest is adapted to the turntable. The backrest is provided with a second guide rail and a second sliding part. The second guide rail is arranged parallel to the first guide rail. The second sliding part is slidably matched on the first guide rail, and the second sliding part has only an axial degree of freedom on the first guide rail. The first sliding part is slidably matched with the second guide rail, and the first sliding part has only an axial degree of freedom on the second guide rail;

[0008] After the backrest slides along the direction of the first guide rail, the second sliding part can be separated from the first guide rail, and the first sliding part can be separated from the second guide rail; A locking component is arranged between the turntable and the backrest, and the locking component is used to limit the sliding of the backrest along the direction of the first guide rail.

[0009] This solution uses two sets of guide rails and sliding parts to make the turntable and the backrest slide together, which can provide a more stable fit. The two sets of guide rails and sliding parts only have axial freedom, which can avoid separation of the two and improve the fit stability of the turntable and the backrest. The axial freedom of the backrest in the guide rail can be limited by the locking component, so that the backrest can be stably fixed in the turntable position. After the locking component is released, the guide rail and the sliding part slide axially to the end to separate, and the disassembly of the turntable and the backrest can be completed. It is very simple and convenient, and the fit is more stable during assembly.

[0010] Preferably, the first guide rail is a T-shaped slot, and the second sliding member is a T-shaped column. The T-shaped column is adapted to the T-shaped slot, which can well realize that the backrest has only axial sliding freedom on the first guide rail, and the second sliding member is locked on the first guide rail.

[0011] Preferably, the second guide rail is a strip hole provided on the backrest, the first sliding member is a T-shaped column, an exit hole portion is provided at the end of the strip hole, the outer diameter of the end cap of the T-shaped column is smaller than the exit hole portion, and when the first sliding member is located at the exit hole portion, the second sliding member is separated from the first guide rail. After passing through the strip hole, the T-shaped column can be hung back behind the strip hole to achieve adaptation, so that the first sliding member only has the freedom of axial sliding in the second guide rail. Since an exit hole portion with a larger aperture is provided at the end of the strip hole, when the first sliding member moves to the exit hole portion, it can be smoothly separated from the turntable from the exit hole portion, and at this time, the second sliding member is also separated from the first guide rail, so that both sets of guide rails and sliding members are separated, and the backrest and the turntable can be separated.

[0012] Preferably, the locking assembly includes a card block and a control block, the card block is slidably matched with the turntable, the sliding direction of the card block points to the backrest, the backrest is provided with a card hole adapted to the end of the card block, when the first sliding member is adapted to the second guide rail, the card block extends to the card hole, the control block is laterally slidably matched with the turntable, the card block and the controlled block are arranged in linkage, and moving the control block will drive the end of the card block to separate from the card hole. By operating the card block to approach or set the card hole of the backrest through the control block, the sliding freedom of the backrest in the direction of the guide rail can be limited, and by combining the two sets of guide rails, the stable matching of the backrest and the turntable can be achieved.

[0013] Preferably, a spring is provided between the turntable and the control block, a toggle pin is provided at the front end side of the control block, a strip-shaped oblique hole is provided at the side of the clamping block corresponding to the toggle pin, the strip-shaped oblique hole is inclined relative to the sliding direction of the clamping block and the control block, the toggle pin extends to the strip-shaped oblique hole, and under normal conditions, the toggle pin pushes the end of the clamping block in the strip-shaped oblique hole to extend to the clamping hole. When the control block drives the toggle pin to slide in the strip-shaped oblique hole, it drives the clamping block to slide, that is, to be clamped into the clamping hole or separated from the clamping hole, so as to more conveniently control the locking of the backrest.

[0014] Preferably, the clamping hole is a strip-shaped window hole parallel to the first guide rail, that is, when the clamping block is in the clamping hole, the backrest can have an axial sliding freedom along the guide rail on the turntable for a distance of one end, so that the backrest can be slid out laterally, and then the clamping block is separated from the clamping hole to remove the backrest.

[0015] Preferably, the side of the block corresponding to the backrest sliding in is provided with an introduction slope, so that when the backrest is installed, the block can be slid into the hole by moving sideways.

[0016] Preferably, the rear end of the control block is the operating end, and the operating end is located on the upper disk surface of the turntable. That is, the operating end of the control block is located on the upper disk surface that matches the backrest, and when the backrest matches the turntable, the operating end of the control block can be covered to prevent accidental operation from touching the operating end of the control block, causing the clamping block to separate from the clamping hole.

[0017] Preferably, the base is provided with a circular groove, the turntable rotatably cooperates with the circular groove, the side of the circular groove is provided with a side sliding notch corresponding to the second guide rail, the lower end of the backrest is provided with a connecting platform corresponding to the side sliding notch, and the first guide rail and the second sliding member are provided on the connecting platform. When the user is in normal use, the turntable rotates to stagger the connecting platform and the side sliding notch. Since the card hole is a strip window hole, the card block will not completely limit the freedom of its guide rail direction, but the connecting platform is actually also in the circular groove, and the circular groove can limit the freedom of the connecting platform in the guide rail direction, that is, limit the freedom of the backrest in the guide rail direction. When disassembly is required, the backrest is rotated so that the connecting platform is aligned with the side sliding notch. At this time, the circular groove will not be able to limit the axial freedom of the connecting platform in the guide rail, and the backrest can slide outward along the side sliding notch with the connecting platform for a distance, that is, the length of the card hole, until the operating end of the rear end of the control block is leaked out. At this time, the two sets of guide rails and sliding parts are not separated, and the backrest and the turntable cannot be separated. At this time, the card block is moved by toggling the rear end of the control block, and the end of the card block is separated from the card hole. The connecting platform will completely have complete freedom in the guide rail direction. At this time, the boss can continue to slide so that the two sets of guide rails and sliding parts are separated, and the backrest can be lifted to complete the separation of the backrest and the turntable.

[0018] Advantages of the present invention:

[0019] The present invention separates the backrest from the base by means of side sliding, and the guide rail and the buckle cooperate to lock the base, so the disassembly and installation are very convenient and the stability is high. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments. Obviously, the drawings in the following description are only eight of the present invention. For those of ordinary skill in the art, without creative work, other drawings can also be obtained according to these drawings.

[0021] Figure 1 External schematic diagram of the embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the turntable and the locking assembly of the embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the locking assembly of the embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the connecting table of the backrest of the embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the internal initial state of the embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the internal backrest turning and aligning with the side sliding notch of the embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the internal backrest having side-slid but the locking assembly not being unlocked in the embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the internal backrest having side-slid and the locking assembly being unlocked in the embodiment of the present invention;

[0029] Among them, 1. Base; 2. Backrest; 3. Turntable; 4. First guide rail; 5. First sliding member; 6. Second guide rail; 7. Second sliding member; 8. Hole outlet part; 9. Block; 10. Control block; 11. Toggle pin; 12. Spring; 13. Strip-shaped inclined hole; 14. Introduction inclined surface; 15. Operating end; 16. Side sliding notch; 17. Connecting table; 18. Card hole. Detailed Embodiment

[0030] In order to deepen the understanding of the present invention, the following will further describe the present invention in detail in combination with the drawings and embodiments. The embodiment is only used to explain the present invention and does not limit the protection scope of the present invention.

[0031] Embodiment

[0032] As Figure 1 shown, a backrest and base separation mechanism for lateral sliding of a child safety seat includes a base 1, a turntable 3, and a backrest 2; the base 1 is rotationally engaged with the turntable 3. Combining Figure 2 shown, the turntable 3 is provided with a first guide rail 4 and a first sliding member 5; the bottom of the backrest 2 is adapted to the turntable 3. Combining Figure 4 shown, the backrest 2 is provided with a second guide rail 6 and a second sliding member 7. The second guide rail 6 is arranged parallel to the first guide rail 4. The second sliding member 7 is slidably engaged with the first guide rail 4. The second sliding member 7 has only an axial degree of freedom on the first guide rail 4. The first sliding member 5 is slidably engaged with the second guide rail 6. The first sliding member 5 has only an axial degree of freedom on the second guide rail;

[0033] After the backrest 2 slides along the direction of the first guide rail 4, the second sliding member 7 can be separated from the first guide rail 4, and the first sliding member 5 can be separated from the second guide rail 6; a locking assembly is arranged between the turntable 3 and the backrest 2. The locking assembly is used to restrict the backrest 2 from sliding along the direction of the first guide rail 4.

[0034] This solution uses two groups of guide rails and sliding members in cooperation, enabling the turntable 3 and the backrest 2 to achieve sliding cooperation with each other, which can provide more stable cooperation. Moreover, the two groups of guide rails and sliding members only have an axial degree of freedom, which can prevent them from separating, improving the cooperation stability between the turntable 3 and the backrest 2. Through the locking assembly, the axial degree of freedom of the backrest 2 on the guide rail can be restricted, realizing the stable fixation of the backrest 2 at the position of the turntable 3. After unlocking the locking assembly, the guide rails and the sliding members slide axially to the end to achieve separation, and then the disassembly of the turntable 3 and the backrest 2 can be completed, which is very simple and convenient, and the cooperation is more stable during assembly.

[0035] The first guide rail 4 is a T-shaped groove, and the second sliding member 7 is a T-shaped column. The T-shaped column is adapted to the T-shaped groove, which can well realize that the backrest 2 has only an axial sliding degree of freedom on the first guide rail 4, and the second sliding member 7 is locked on the first guide rail 4.

[0036] The second guide rail 6 is a strip-shaped hole provided on the backrest 2. The first sliding member 5 is a T-shaped column. An outlet portion 8 is provided at the end of the strip-shaped hole. The outer diameter of the end cap of the T-shaped column is smaller than that of the outlet portion 8. When the first sliding member 5 is located at the outlet portion 8, the second sliding member 7 is separated from the first guide rail 4. The T-shaped column can be hooked behind the strip-shaped hole after passing through it to achieve adaptation, so that the first sliding member 5 only has the freedom of axial sliding in the second guide rail 6. Since an outlet portion 8 with a larger aperture is provided at the end of the strip-shaped hole, when the first sliding member 5 moves to the outlet portion 8, it can smoothly separate from the outlet portion 8 and the turntable 3. And at this time, the second sliding member 7 is also separated from the first guide rail 4. Therefore, both groups of guide rails and sliding members are separated, and the separation of the backrest 2 and the turntable 3 can be realized.

[0037] As shown in combination Figure 3 shown, the locking assembly includes a latch 9 and a control block 10. The latch 9 is slidably engaged with the turntable 3. The sliding direction of the latch 9 points to the backrest 2. The backrest 2 is provided with a locking hole 18 adapted to the end of the latch 9. When the first sliding member 5 is adapted to the second guide rail 6, the latch 9 extends into the locking hole 18. The control block 10 is slidably engaged with the turntable 3 in the transverse direction. The latch 9 and the control block 10 are linked. Moving the control block 10 will drive the end of the latch 9 to separate from the locking hole 18. By operating the latch 9 through the control block 10 to approach or be arranged in the locking hole 18 of the backrest 2, the freedom of sliding of the backrest 2 in the direction of the guide rail can be restricted. Combining the two groups of guide rails, the stable cooperation between the backrest 2 and the turntable 3 can be realized.

[0038] A spring 12 is provided between the turntable 3 and the control block 10. A toggle pin 11 is provided on the front side of the control block 10. A strip-shaped inclined hole 13 is provided on the side of the latch 9 corresponding to the toggle pin 11. The strip-shaped inclined hole 13 is inclined with respect to the sliding directions of both the latch 9 and the control block 10. The toggle pin 11 extends into the strip-shaped inclined hole 13. Under normal conditions, the toggle pin 11 pushes the end of the latch 9 to extend into the locking hole 18 in the strip-shaped inclined hole 13. When the control block 10 drives the toggle pin 11 to slide in the strip-shaped inclined hole 13, it will drive the latch 9 to slide, that is, to be inserted into or separated from the locking hole 18, which can more conveniently control the locking of the backrest 2.

[0039] The locking hole 18 is a strip-shaped window hole parallel to the first guide rail 4. That is, when the latch 9 is in the locking hole 18, the backrest 2 can have a certain degree of freedom of axial sliding along the guide rail on the turntable 3, so as to slide the backrest 2 laterally, and then separate the latch 9 from the locking hole 18 to remove the backrest 2.

[0040] The side of the block 9 corresponding to the backrest 2 sliding into is provided with an introduction slope 14. When the backrest 2 is installed, the block 9 is moved sideways to slide into the hole.

[0041] The rear end of the control block 10 is an operating end 15, and the operating end 15 is located on the upper disk surface of the turntable 3. That is, the operating end 15 of the control block 10 is located on the upper disk surface that cooperates with the backrest 2. When the backrest 2 is matched with the turntable 3, the operating end 15 of the control block 10 can be covered to avoid accidental operation touching the operating end 15 of the control block 10, driving the clamping block 9 to separate from the clamping hole 18.

[0042] The base 1 is provided with a circular groove, the turntable 3 is rotatably matched with the circular groove, the side of the circular groove is provided with a side sliding notch 16 corresponding to the second guide rail 6, the lower end of the backrest 2 is provided with a connecting platform 17 corresponding to the side sliding notch 16, and the first guide rail 4 and the second sliding member 7 are provided on the connecting platform 17. Figure 5 As shown, when the user is in normal use, the turntable 3 rotates to make the connecting platform 17 staggered with the side sliding notch 16. Since the clamping hole 18 is a strip window hole, the clamping block 9 will not completely restrict its freedom in the guide rail direction. However, the connecting platform 17 is actually in the circular groove, and the circular groove can limit the freedom of the connecting platform 17 in the guide rail direction, that is, limit the freedom of the backrest 2 in the guide rail direction. Figure 6 As shown, when disassembly is required, the backrest 2 is rotated so that the connecting platform 17 is aligned with the side sliding notch 16. At this time, the circular groove will not be able to limit the axial freedom of the connecting platform 17 in the guide rail. Figure 7 As shown, the backrest 2 can slide outward along the side sliding notch 16 along with the connecting platform 17 for a distance, that is, the length of the clamping hole 18, until the operating end 15 at the rear end of the control block 10 is exposed. At this time, the two sets of guide rails and sliding parts are not separated, and the backrest 2 and the turntable 3 cannot be separated. Figure 8 As shown, at this time, by toggling the rear end of the control block 10, the block 9 is moved, and the end of the block 9 is separated from the clamping hole 18. The connecting platform 17 will completely have complete freedom in the direction of the guide rail. At this time, the boss can continue to slide so that the two sets of guide rails and the sliding parts are separated, and the backrest 2 is lifted to complete the separation of the backrest 2 and the turntable 3.

[0043] Advantages of the present invention:

[0044] The present invention separates the backrest 2 and the base 1 by side sliding, and the guide rail cooperates with the buckle to lock the base 1, which is very convenient for disassembly and installation. The two sets of guide rails and the sliding parts cooperate with each other and have high stability.

[0045] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope recorded in this specification.

[0046] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A backrest and base separation mechanism for a child safety seat with lateral sliding, characterized in that, It includes a base (1), a turntable (3) and a backrest (2); The base (1) is rotationally fitted with the turntable (3); The turntable (3) is provided with a first guide rail (4) and a first sliding member (5); The bottom of the backrest (2) is adapted to the turntable (3). The backrest (2) is provided with a second guide rail (6) and a second sliding member (7). The second guide rail (6) is arranged in parallel with the first guide rail (4). The second sliding member (7) is slidably fitted on the first guide rail (4). The second sliding member (7) has only an axial degree of freedom on the first guide rail (4). The first sliding member (5) is slidably fitted on the second guide rail (6). The first sliding member (5) has only an axial degree of freedom on the second guide rail (6); After the backrest (2) slides along the direction of the first guide rail (4), the second sliding member (7) can be separated from the first guide rail (4), and the first sliding member (5) can be separated from the second guide rail (6). A locking assembly is arranged between the turntable (3) and the backrest (2). The locking assembly is used to limit the sliding of the backrest (2) along the direction of the first guide rail (4).

2. The backrest and base separation mechanism for lateral sliding of a child safety seat according to claim 1, characterized in that: The first guide rail (4) is a T-shaped groove, and the second sliding member (7) is a T-shaped column.

3. The backrest and base separation mechanism for lateral sliding of a child safety seat according to claim 1, characterized in that: The second guide rail (6) is a strip-shaped hole arranged on the backrest (2). The first sliding member (5) is a T-shaped column. An outlet portion (8) is arranged at the end of the strip-shaped hole. The outer diameter of the end cap of the T-shaped column is smaller than the outlet portion (8). When the first sliding member (5) is located at the outlet portion (8), the second sliding member (7) is separated from the first guide rail (4).

4. The backrest and base separation mechanism for lateral sliding of a child safety seat according to claim 1, characterized in that: The locking assembly includes a clamping block (9) and a control block (10). The clamping block (9) is slidably fitted on the turntable (3). The sliding direction of the clamping block (9) points to the backrest (2). The backrest (2) is provided with a clamping hole (18) adapted to the end of the clamping block (9). When the first sliding member (5) is adapted to the second guide rail (6), the clamping block (9) extends into the clamping hole (18). The control block (10) is slidably fitted horizontally on the turntable (3). The clamping block (9) is linked with the control block (10). Moving the control block (10) will drive the end of the clamping block (9) to be separated from the clamping hole (18).

5. The backrest and base separation mechanism for lateral sliding of a child safety seat according to claim 4, characterized in that: A spring (12) is arranged between the turntable (3) and the control block (10). A toggle pin (11) is arranged on the front side of the control block (10). A strip-shaped inclined hole (13) is arranged on the side of the clamping block (9) corresponding to the toggle pin (11). The strip-shaped inclined hole (13) is inclined with respect to the sliding directions of both the clamping block (9) and the control block (10). The toggle pin (11) extends into the strip-shaped inclined hole (13). Under normal conditions, the toggle pin (11) pushes the end of the clamping block (9) to extend into the clamping hole (18) in the strip-shaped inclined hole (13).

6. The backrest and base separation mechanism for lateral sliding of a child safety seat according to claim 5, characterized in that: The clamping hole (18) is a strip-shaped window hole parallel to the first guide rail (4).

7. The backrest and base separation mechanism for lateral sliding of a child safety seat according to claim 6, characterized in that: An inlet inclined surface (14) is arranged on the side of the clamping block (9) corresponding to the sliding-in of the backrest (2).

8. A backrest and base separation mechanism for a child safety seat with lateral sliding, according to claim 6, characterized in that: The rear end of the control block (10) is an operating end (15), and the operating end (15) is located on the upper disk surface of the turntable (3).

9. A backrest and base separation mechanism for a child safety seat with lateral sliding, as claimed in claim 8, characterized in that: The base (1) is provided with a circular sunk groove, the turntable (3) is rotationally fitted in the circular sunk groove, a side sliding notch (16) is provided on the side of the circular sunk groove corresponding to the second guide rail (6), a connecting platform (17) is provided at the lower end of the backrest (2) corresponding to the side sliding notch (16), and the first guide rail (4) and the second sliding member (7) are arranged on the connecting platform (17).

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