Child safety seat

Abstract

The present invention discloses a child safety seat, which includes a seat body and a base that are rotatably connected. The seat body has a first position state and a second position state relative to the base. A stop block is provided on the base, and a limiting mechanism is provided on the seat body that can limit the seat body from rotating from the first position state to the second position state by abutting against the stop block. The limiting mechanism includes a limiting component and an unlocking member that causes the limiting component to act by operating it. The limiting component includes a limiting member that is movably provided on the seat body and detachably abuts against the stop block. The unlocking member is movably provided on the seat body. In this child safety seat, when it is installed in the reverse direction, the limiting mechanism can lock the seat body in the first position state, preventing it from rotating relative to the base to the second position state, so that the child safety seat cannot be adjusted to the forward installation, preventing the user from misusing it when adjusting the forward and reverse directions of the child safety seat.

Description

Technical Field

[0001] The present invention relates to a child safety seat. Background Art

[0002] A child safety seat is an essential facility for a child to ride safely. Users should select to install the child safety seat forward (the child in the seat faces the driving direction of the vehicle) or backward (the child in the seat backs the driving direction of the vehicle) according to the different ages, weights, and heights of the children in the seat. The backward installation is applicable to infants with relatively small ages, weights, and heights, and the forward installation is applicable to children with relatively larger ages, weights, and heights. However, in actual use, some users cannot correctly select the installation method of the child safety seat body. Therefore, a child safety seat is needed that can prompt the user to install it correctly and lock the seat in the correct installation state to prevent the user from misusing it when adjusting the forward and backward directions of the child safety seat. Summary of the Invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a child safety seat.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a child safety seat, including a seat body and a base that are rotatably connected. The seat body has a first position state and a second position state relative to the base. A stop block is provided on the base, and a limiting mechanism is provided on the seat body that can limit the seat body from rotating from the first position state to the second position state by abutting against the stop block. The limiting mechanism includes a limiting component and an unlocking member that makes the limiting component act by operating it. The limiting component includes a limiting member that is movably provided on the seat body and detachably abuts against the stop block, and the unlocking member is movably provided on the seat body.

[0005] Further, the unlocking member has a locking position and an unlocking position, and the limiting mechanism has a locking state and an unlocking state. When the unlocking member is in the locking position, the limiting mechanism is in the locking state, the limiting member extends out of the seat body, and the stop block forms a block for the limiting member, so that the seat body is restricted in the first position state; when the unlocking member is in the unlocking position, the limiting mechanism is in the unlocking state, the limiting member retracts into the seat body, and the limiting member is disengaged from the block of the stop block.

[0006] Furthermore, one of the unlocking member and the seat body has a protruding sliding pin, and the other is provided with a limiting groove for the sliding pin to slide therein. When the unlocking member is in the locking position, the sliding pin is located at one end of the limiting groove. When the unlocking member is in the unlocking position, the sliding pin is located at the other end of the limiting groove. The groove wall of the limiting groove has a limiting portion that protrudes into the limiting groove and can limit the sliding pin at one end or the other end of the limiting groove. During the process of the unlocking member being force-operated to switch from the locking position to the unlocking position, the limiting portion is squeezed by the sliding pin to cause elastic deformation of the limiting groove, enabling the sliding pin to pass through.

[0007] Further, deformation grooves are formed on both sides of the limiting groove, and the extending direction of the deformation groove is the same as that of the limiting groove. During the process that the limiting part is extruded by the sliding pin, the deformation groove becomes narrower to provide an elastic deformation space for the limiting groove.

[0008] Further, the limiting component further includes a driving member movably arranged on the seat body and capable of pushing the limiting member to move, and the driving member is directly or indirectly pushed by the movement of the unlocking member.

[0009] Optionally, the driving member has a first inclined surface, and the unlocking member has a second inclined surface that pushes the driving member to move by sliding contact with the first inclined surface.

[0010] Optionally, the limiting component further includes a pressing member movably arranged on the seat body. The driving member has a first inclined surface, and the pressing member has a third inclined surface that pushes the driving member to move by sliding contact with the first inclined surface. The pressing member further has a fourth inclined surface, and the unlocking member has a fifth inclined surface that pushes the pressing member to move by sliding contact with the fourth inclined surface. Further, there are two pressing members symmetrically arranged on the left and right sides of the unlocking member, and there are two driving members symmetrically arranged on the left and right sides of the unlocking member.

[0011] Further, an elastic member capable of retracting the limiting member into the seat body is arranged on the seat body.

[0012] Further, the unlocking member has a first mark and a second mark. When the unlocking member is in the locking position, the first mark is exposed and the second mark is blocked. When the unlocking member is in the unlocking position, the first mark is blocked and the second mark is exposed.

[0013] Due to the above technical solution, when the child safety seat is installed in the reverse direction, that is, when the seat body is in the first position state, the limiting mechanism can lock the seat body in the current position, so that it cannot rotate relative to the base to the second position state, thereby preventing the child safety seat from being adjusted to the forward installation, and preventing the user from misusing it when adjusting the forward and reverse directions of the child safety seat. Description of the Drawings

[0014] Att Figure 1 is a schematic structural view of a child safety seat in an embodiment of the present invention, in which the seat body is in the first position state, the unlocking member is in the locking position, and the limiting mechanism is in the locking state;

[0015] Att Figure 2 is the partial view A in Att Figure 1 ;

[0016] Att Figure 3 is the longitudinal sectional structural view of Att Figure 1 ;

[0017] Appendix Figure 4 is the longitudinal sectional structure schematic diagram of the seat body in Figure 1 ;

[0018] Appendix Figure 5 is the axonometric structure schematic diagram of the child safety seat shown in Figure 1 ;

[0019] Appendix Figure 6 is the connection structure schematic diagram among the unlocking member, the driving member and the seat body in Figure 1 ;

[0020] Appendix Figure 7 is the structure schematic diagram of the child safety seat shown in Figure 1 , where the seat body is in the second position state, the unlocking member is in the unlocking position, and the limiting mechanism is in the unlocking state;

[0021] Appendix Figure 8 is the partial view B in Figure 7 ;

[0022] Appendix Figure 9 is the longitudinal sectional structure schematic diagram of Figure 7 ;

[0023] Appendix Figure 10 is the longitudinal sectional structure schematic diagram of the seat body in Figure 7 ;

[0024] Appendix Figure 11 is the axonometric structure schematic diagram of the child safety seat shown in Figure 7 ;

[0025] Appendix Figure 12 is the connection structure schematic diagram among the unlocking member, the driving member and the seat body in Figure 7 ;

[0026] Appendix Figure 13 is the sectional structure schematic diagram of Figure 12 ;

[0027] Appendix Figure 14 is the connection structure schematic diagram among the unlocking member, the extrusion member, the driving member and the seat body in the child safety seat in another embodiment of the present invention, where the seat body is in the first position state, the unlocking member is in the locking position, and the limiting mechanism is in the locking state;

[0028] Appendix Figure 15 is the connection structure schematic diagram shown in Figure 14 , where the seat body is in the second position state, the unlocking member is in the unlocking position, and the limiting mechanism is in the unlocking state;

[0029] AppendixFigure 16 is an attached Figure 14 schematic cross-sectional structure diagram.

[0030] The reference numerals in the figure are:

[0031] 1. Seat body; 11. Slide pin; 12. Guide pin; 2. Base; 3. Stopper; 4. Unlocking member; 41. Limit groove; 42. Limiting portion; 43. Deformation groove; 44. Second inclined surface; 45. Fifth inclined surface; 46. First mark; 47. Second mark; 48. First extension portion; 5. Limiting member; 6. Driving member; 61. First inclined surface; 62. Slide groove; 63. Kidney-shaped hole; 7. Extrusion member; 71. Third inclined surface; 72. Fourth inclined surface; 73. Second extension portion; 8. Elastic member. Specific embodiments

[0032] The following will elaborate on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0033] Embodiment 1

[0034] From the Figure 1 to the Figure 13 schematic structure diagram, it can be seen that the child safety seat in this embodiment includes a seat body 1 and a base 2 that are rotatably connected. The seat body 1 has a first position state and a second position state relative to the base 2. A stopper 3 is provided on the base 2, and a limiting mechanism is provided on the seat body 1 that can limit the rotation of the seat body 1 from the first position state to the second position state by abutting against the stopper 3.

[0035] The limiting mechanism includes a limiting component and an unlocking member 4. The limiting component includes a limiting member 5 that is movably provided on the seat body 1 and detachably abuts against the stopper 3. The unlocking member 4 is movably provided on the seat body 1. By operating the unlocking member 4, the limiting component is actuated, thereby restricting or releasing the switching of the position state of the seat body 1.

[0036] The unlocking member 4 has a locking position and an unlocking position. The limiting mechanism has a locking state and an unlocking state. When the unlocking member is in the locking position, the limiting mechanism is in the locking state, the limiting member 5 extends out of the seat body 1, and the stopper 3 forms a block for the limiting member 5. Thus, the stopper 3 and the limiting member 5 interfere with each other to prevent the seat body 1 from rotating, and the seat body 1 is restricted to the first position state. When the unlocking member 4 is in the unlocking position, the limiting mechanism is in the unlocking state, the limiting member 5 retracts into the seat body 1, and the limiting member 5 is disengaged from the block of the stopper 3.

[0037] One of the unlocking member 4 and the seat body 1 is provided with a protruding sliding pin 11, and the other is provided with a limiting groove 41 for the sliding pin 11 to slide therein. The moving position of the unlocking member 4 is restricted by the cooperation between the sliding pin 11 and the limiting groove 41. In this embodiment, the sliding pin 11 is arranged on the seat body 1, and the limiting groove 41 is arranged on the unlocking member 4. When the unlocking member 4 is in the locked position, the sliding pin 11 is located at one end of the limiting groove 41, and when the unlocking member 4 is in the unlocked position, the sliding pin 11 is located at the other end of the limiting groove 41.

[0038] In a more preferred embodiment, the groove wall of the limiting groove 41 is provided with a limiting portion 42 that protrudes into the limiting groove 41 and can limit the sliding pin 11 at one end or the other end of the limiting groove 41, thereby preventing the unlocking member 4 from accidentally sliding when not being operated. During the process of the unlocking member 4 being forced to operate and switch from the locked position to the unlocked position, the limiting portion 42 is squeezed by the sliding pin 11 to cause elastic deformation of the limiting groove 41, so that the sliding pin 11 can switch positions by passing through the limiting portion 42. In order to make it easier for the user to operate the unlocking member 4, in this embodiment, deformation grooves 43 are opened on both sides of the limiting groove 41. The extending direction of the deformation grooves 43 is the same as the extending direction of the limiting groove 41. During the process of the limiting portion 42 being squeezed by the sliding pin 11, the deformation grooves 43 become narrower to provide space for the elastic deformation of the limiting groove 41.

[0039] The unlocking member 4 in this embodiment moves in the left - right direction, and the extending directions of the limiting groove 41 and the deformation grooves 43 are in the left - right direction.

[0040] The limiting component further includes a driving member 6 that is movably arranged on the seat body 1 and can move the limiting member 5. The driving of the limiting member 5 by the driving member 6 can adopt various methods. For example, the driving member 6 is fixedly connected or integrally formed with the limiting member 5 to make the limiting member 5 move synchronously with the driving member 6, or the driving member 6 slides in contact with the limiting member 5 through an inclined surface to push the limiting member 5 to move, and so on.

[0041] The driving member 6 is directly or indirectly pushed by the movement of the unlocking member 4. In this embodiment, the unlocking member 4 directly pushes the driving member 6. The specific structure is that the driving member 6 has a first inclined surface 61, and the unlocking member 4 has a second inclined surface 44 that can slide in contact with the first inclined surface 61. When the unlocking member 4 moves, the second inclined surface 44 slides in contact with the first inclined surface 61, thereby pushing the driving member 6 to move. In this embodiment, the end of the unlocking member 4 has a first extension portion 48 that extends in the moving direction of the unlocking member 4. The driving member 6 has a sliding groove 62. The first extension portion 48 can move up and down and left and right in the sliding groove 62. The connection between the first extension portion 48 and the sliding groove 62 can play a role in limiting and guiding the cooperation between the unlocking member 4 and the driving member 6.

[0042] The driving member 6 is also provided with a waist-shaped hole 63, and the seat body 1 is provided with a guide pin 12 that is inserted into the waist-shaped hole 63 and can move along the length direction of the waist-shaped hole 63. The connection between the guide pin 12 and the waist-shaped hole 63 can limit and guide the movement of the driving member 6.

[0043] An elastic member 8 capable of retracting the limiting member 5 into the seat body 1 is provided on the seat body 1. In this embodiment, the elastic member 8 is a compression spring.

[0044] In a more preferred implementation, the unlocking member 4 has a first mark 46 and a second mark 47, and the first mark 46 and the second mark 47 respectively correspond to the first position state and the second position state of the seat body 1. When the unlocking member 4 is in the locked position, the first mark 46 is exposed and the second mark 47 is blocked. When the unlocking member 4 is in the unlocked position, the first mark 46 is blocked and the second mark 47 is exposed. Thus, it can correctly prompt the user.

[0045] Working principle:

[0046] When the child safety seat is installed in the reverse direction, the seat body 1 is in the first position state, and the unlocking member 4 moves to the locked position. The first mark 46 corresponding to the first position state of the seat body 1 on the unlocking member 4 is exposed, giving the user correct prompt information. During the process of the unlocking member 4 moving to the locked position, the driving member 6 is pushed downward through the cooperation of the second inclined surface 44 and the first inclined surface 61, so that the limiting member 5 moves downward and extends out of the seat body 1. At this time, the limiting mechanism is locked. In this state, if the seat body 1 is to be rotated, the limiting member 5 will collide with the stopper 3 on the base 1, thereby restricting the rotation of the seat body 1 and preventing it from rotating to the second position state, that is, the child safety seat cannot be switched to the forward installation. Move the unlocking member 4 to the unlocked position, and the first mark 46 corresponding to the first position state of the seat body 1 on the unlocking member 4 is exposed, giving the user correct prompt information. Losing the thrust generated by the unlocking member 4, the limiting member moves upward under the action of the elastic member 8 and retracts into the seat body 1. At this time, the limiting mechanism is unlocked. In this state, the seat body 1 can be rotated to the second position state, that is, the child safety seat can be switched to the forward installation.

[0047] Embodiment 2

[0048] Refer to the attached Figure 14 to the attached Figure 16, the difference between the child safety seat in this embodiment and the first embodiment is only that: the unlocking member 4 indirectly pushes the driving member 6. The specific structure is that the limiting assembly further includes a pressing member 7 movably arranged on the seat body 1. The pressing member 7 has a third inclined surface 71 that pushes the driving member 6 to move by slidingly contacting the first inclined surface 61 on the driving member 6. The pressing member 7 also has a fourth inclined surface 72, and the unlocking member 4 has a fifth inclined surface 45 that pushes the pressing member 7 to move by slidingly contacting the fourth inclined surface 72.

[0049] In this embodiment, the unlocking member 4 moves in the up and down direction, the extending directions of the limiting groove 41 and the deformation groove 43 are in the left and right direction, and the pressing member 7 moves in the left and right direction.

[0050] In this embodiment, the end of the pressing member 7 has a second extension portion 73 extending in the moving direction of the pressing member 7. The second extension portion 73 can move up and down and left and right in the sliding groove 62 of the driving member 6. The connection between the second extension portion 73 and the sliding groove 62 can play a role in limiting and guiding the cooperation between the pressing member 7 and the driving member 6.

[0051] In a more preferred implementation scheme, there are two pressing members 7, driving members 6, and limiting members 5, and they are all symmetrically arranged on the left and right sides of the unlocking member 4. And the limiting members 6 are symmetrically arranged on the left and right sides of the stopper 3, so that the rotation of the seat body 1 can be restricted in both the left and right directions.

[0052] Working principle:

[0053] The working principle of this embodiment is basically the same as that of the first embodiment, the difference is only that, during the process of the unlocking member 4 moving downward to the locking position, first, the fifth inclined surface 45 of the unlocking member 4 cooperates with the fourth inclined surface 72 of the pressing member 7 to push the two pressing members 7 to move to the left and right sides respectively. Each pressing member 7 then cooperates with the first inclined surface 61 on the corresponding driving member 6 through the third inclined surface 71 to push the corresponding driving member 6 to move downward, so that the limiting member 5 moves downward and extends out of the seat body 1 to lock the limiting mechanism.

[0054] For the child safety seat in the above embodiment, when it is installed in the reverse direction, that is, when the seat body is in the first position state, the limiting mechanism can lock the seat body in the current position, so that it cannot rotate relative to the base to the second position state, thereby preventing the child safety seat from being adjusted to the forward installation and preventing the user from misusing it when adjusting the forward and reverse directions of the child safety seat.

[0055] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A child safety seat, comprising a seat body (1) and a base (2) which are rotatably connected. The seat body (1) has a first position state and a second position state relative to the base (2). A stop block (3) is provided on the base (2), and a limiting mechanism is provided on the seat body (1) which can limit the rotation of the seat body (1) from the first position state to the second position state by abutting against the stop block (3). Characterized in that: The limiting mechanism includes a limiting component and an unlocking member (4) for operating the limiting component to act. The limiting component includes a limiting member (5) which is movably arranged in the up and down direction on the seat body (1) and detachably abuts against the stop block (3). The unlocking member (4) is movably arranged in the up and down direction on the seat body (1). The limiting component further includes a driving member (6) which is movably arranged on the seat body (1) and can move the limiting member (5). The driving member (6) is pushed by the movement of the unlocking member (4). The limiting component further includes a pressing member (7) which is movably arranged on the seat body (1). The driving member (6) has a first inclined surface (61), and the pressing member (7) has a third inclined surface (71) which pushes the driving member (6) to move by sliding contact with the first inclined surface (61). The pressing member (7) further has a fourth inclined surface (72), and the unlocking member (4) has a fifth inclined surface (45) which pushes the pressing member (7) to move by sliding contact with the fourth inclined surface (72). The unlocking member (4) has a locking position and an unlocking position. The limiting mechanism has a locking state and an unlocking state. When the unlocking member is in the locking position, the limiting mechanism is in the locking state, the limiting member (5) moves downward and extends out of the seat body (1), and the stop block (3) blocks the limiting member (5), so that the seat body (1) is restricted in the first position state; when the unlocking member (4) is in the unlocking position, the limiting mechanism is in the unlocking state, the limiting member (5) moves upward and retracts into the seat body (1) to escape from the block of the stop block (3). There are two pressing members (7) which are symmetrically arranged on the left and right sides of the unlocking member (4), and there are two driving members (6) which are symmetrically arranged on the left and right sides of the unlocking member (4); an elastic member (8) is provided on the seat body (1) which can retract the limiting member (5) into the seat body (1).

2. The child safety seat according to claim 1, Characterized in that: One of the unlocking member (4) and the seat body (1) is provided with a protruding sliding pin (11), and the other is provided with a limiting groove (41) for the sliding pin (11) to slide therein. When the unlocking member (4) is in the locked position, the sliding pin (11) is located at one end of the limiting groove (41). When the unlocking member (4) is in the unlocked position, the sliding pin (11) is located at the other end of the limiting groove (41). The groove wall of the limiting groove (41) has a limiting portion (42) protruding into the limiting groove (41) and capable of restricting the sliding pin (11) at one end or the other end of the limiting groove (41). During the process that the unlocking member (4) is forced to operate and switch from the locked position to the unlocked position, the limiting portion (42) is squeezed by the sliding pin (11) to cause elastic deformation of the limiting groove (41) so that the sliding pin (11) passes through.

3. The child safety seat according to claim 2, characterized in that: Deformation grooves (43) are formed on both sides of the limiting groove (41), and the extending direction of the deformation grooves (43) is the same as that of the limiting groove (41). During the process that the limiting portion (42) is squeezed by the sliding pin (11), the deformation grooves (43) become narrower to provide a space for elastic deformation of the limiting groove (41).

4. The child safety seat according to claim 1, characterized in that: The unlocking member (4) is provided with a first mark (46) and a second mark (47). When the unlocking member (4) is in the locked position, the first mark (46) is exposed and the second mark (47) is blocked. When the unlocking member (4) is in the unlocked position, the first mark (46) is blocked and the second mark (47) is exposed.

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