A child seat

Abstract

The embodiment of the present invention provides a child seat, which relates to the field of baby carriage production. The child seat includes a seat plate, a back plate and a transmission member. The back plate is rotatably connected to the seat plate. The transmission member is connected to the seat plate and the back plate at the same time. The transmission member is used to drive the seat plate to rotate in a direction close to the back plate under the rotation of the back plate. During the folding process of the child seat, the back plate and the seat plate can rotate towards each other at the same time, so that the folding operation can be completed more quickly, and the folding efficiency is improved.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims the priority of Chinese patent application No. 2020114516035, filed with the Chinese Patent Office on December 10, 2020, and entitled “A Child Seat,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The invention relates to the field of baby carriage production, and in particular to a child seat. Background Art

[0004] Generally, for the convenience of carrying and using, child seats have a folding function, and the folded child seat can reduce space occupation and is convenient to carry. In the folding process of the existing child seat, the back plate is usually folded directly to the position where the seat plate is, and the folding efficiency is low. Summary of the invention

[0005] The object of the present invention is to provide a child seat which can effectively improve the above-mentioned technical problems.

[0006] The embodiment of the present invention is achieved as follows:

[0007] In a first aspect, the present invention provides a child seat, comprising a seat plate, a back plate and a transmission member, wherein the back plate is rotatably connected to the seat plate, and the transmission member is connected to the seat plate and the back plate at the same time, and the transmission member is used to drive the seat plate to rotate in a direction close to the back plate under the rotation of the back plate.

[0008] In an optional embodiment, the transmission member includes a first connecting seat, a second connecting seat and a transmission shaft, the first connecting seat is connected to the back plate, the second connecting seat is connected to the seat plate, one end of the transmission shaft is movably engaged with the first connecting seat, and the other end of the transmission shaft is movably engaged with the second connecting seat.

[0009] In an optional embodiment, the first connecting seat is provided with a first strip-shaped hole, the second connecting seat is provided with a second strip-shaped hole, one end of the transmission shaft can be movably embedded in the first strip-shaped hole, and the other end of the transmission shaft can be movably embedded in the second strip-shaped hole.

[0010] In an optional embodiment, the first strip-shaped hole includes a first hole segment and a second hole segment that are interconnected, the transmission shaft is used to switchably cooperate with the first hole segment or the second hole segment under the rotation of the back plate, and the seat plate is used to be driven by the transmission shaft and rotate in a direction close to the back plate when the transmission shaft cooperates with the second hole segment.

[0011] In an optional embodiment, the first hole segment and the second hole segment are both arc segments, the first connecting seat rotates around the rotation axis, the rotation axis passes through the center of the circle corresponding to the first hole segment, and the curvature radius of the second hole segment is greater than the curvature radius of the first hole segment.

[0012] In an optional embodiment, the first connecting seat includes a first seat body and a first reinforcement plate, the second connecting seat includes a second seat body and a second reinforcement plate, the first seat body is connected to the back plate, the second seat body is connected to the seat plate, the first reinforcement plate is installed on a side of the first seat body close to the second seat body, the second reinforcement plate is installed on a side of the second seat body close to the first seat body, and the transmission shaft is simultaneously movably cooperated with the first seat body, the second reinforcement plate, the second seat body and the second reinforcement plate.

[0013] In an optional embodiment, the child seat also includes a frame, a connecting shell and a first limiting member, the second connecting seat is provided with a second notch, the connecting shell is connected to the frame, the first limiting member is movably connected to the connecting shell, and the first limiting member is used to snap into or disengage from the second notch to lock the second connecting seat to the connecting shell or unlock the second connecting seat from the connecting shell.

[0014] In an optional embodiment, the first connecting seat is provided with a first notch, and the first notch has a guiding inclined wall, and the guiding inclined wall is used to support the first limiting member under the action of the rotation of the first connecting seat, so as to push the first limiting member out of the second notch.

[0015] In an optional embodiment, the child seat also includes a first spring, the connecting shell is provided with a first matching cavity that matches with the first limiting piece, the first spring is accommodated in the first matching cavity, and one end of the first spring abuts against the bottom wall of the first matching cavity, and the other end of the first spring abuts against the first limiting piece, and the first spring is used to push the first limiting piece into the second notch.

[0016] In an optional embodiment, the child seat also includes a second limiting member and a shift plate, the second limiting member can be movably mounted on the first connecting seat, the shift plate is mounted on the side of the connecting shell close to the first connecting seat, a plurality of limiting holes are arranged on the peripheral wall of the shift plate, the second limiting member is used to cooperate with one of the limiting holes, or the second limiting member is used to slidably abut against the peripheral wall between two adjacent limiting holes.

[0017] In an optional embodiment, a first abutting protrusion is provided on the first connecting seat, a avoidance hole is provided on the shift plate, the child seat further comprises a transmission plate and a fixing seat for connecting to the frame, the transmission plate and the shift plate are stacked, a second abutting protrusion is provided on a side of the transmission plate close to the shift plate, the transmission plate is mounted on the fixing seat, and the transmission plate is detachably mounted on the connecting shell to switch between the first state and the second state;

[0018] In the first state, the transmission disc is mounted on the connecting shell, the second abutting protrusion passes through the avoidance hole, and the connecting shell is fixed relative to the fixing seat;

[0019] In the second state, the first abutment protrusion is used to support the second abutment protrusion to separate the transmission disk from the connecting shell when the first connecting seat follows the back plate to rotate to a preset position, and the connecting shell and the transmission disk both follow the first connecting seat to rotate relative to the fixed seat.

[0020] In an optional embodiment, the child seat also includes a third spring, which is arranged between the transmission plate and the fixed seat, and the two ends of the third spring are respectively abutted against the transmission plate and the fixed seat, and the third spring is used to be compressed in the second state, and the third spring is used to drive the transmission plate to return to its initial position when the first abutment protrusion and the second abutment protrusion are separated.

[0021] In an optional embodiment, the transmission disc is provided with an annular transmission groove, and the second abutment protrusion is protrudingly provided in the transmission groove;

[0022] Wherein, in the first state, the first abutment protrusion is slidably matched with the transmission groove.

[0023] In an optional embodiment, a transition inclined wall is also provided on the transmission plate, and the transition inclined wall extends from the bottom wall of the transmission groove to the top wall of the second abutment protrusion. The transition inclined wall is used to guide the first abutment protrusion to move from the transmission groove to the top wall of the second abutment protrusion to support the second abutment protrusion.

[0024] In an optional embodiment, the child seat also includes a second spring, one end of which is connected to the first connecting seat, and the other end of the second spring is abutted against the second limiting member, and the second spring is used to press the second limiting member into the limiting hole under the action of a restoring force.

[0025] In an optional embodiment, the child seat also includes a traction line and a connecting head, one end of the traction line is connected to the connecting head, the second limiting member is provided with a slot, the connecting head is embedded in the slot, and the traction line is used to pull the second limiting member out of the limiting hole through the connecting head.

[0026] The beneficial effects of the embodiments of the present invention include, for example:

[0027] An embodiment of the present invention provides a child seat, which includes a seat plate, a back plate and a transmission member, wherein the back plate is rotatably connected to the seat plate, and the transmission member is connected to the seat plate and the back plate at the same time. After the user operates the back plate to rotate, the back plate can drive the transmission member to move, and the transmission member then drives the seat plate to rotate in a direction close to the back plate. In this way, during the folding process of the child seat, the back plate and the seat plate can rotate towards each other at the same time, so that the folding operation can be completed more quickly, thereby improving the folding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the structure of a child seat provided by an embodiment of the present invention at a first viewing angle;

[0030] Figure 2 An exploded schematic diagram of a child seat provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the structure of a child seat provided by an embodiment of the present invention at a second viewing angle;

[0032] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0033] Figure 5 A schematic structural diagram of a first reinforcing plate provided in an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of the structure of a first seat body provided in an embodiment of the present invention;

[0035] Figure 7 A schematic structural diagram of a second reinforcing plate provided in an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of the structure of a second seat body provided in an embodiment of the present invention;

[0037] Fig. 9 A schematic diagram of the structure between the first connecting seat, the first limiting member and the second reinforcing plate provided in an embodiment of the present invention;

[0038] Fig.10 A schematic diagram of the structure of a child seat provided by an embodiment of the present invention at a third viewing angle;

[0039] Fig.11 for Fig.10 The enlarged schematic diagram of point B in the middle;

[0040] Fig.12 A schematic diagram of the structure of a shift plate provided by an embodiment of the present invention at a first viewing angle;

[0041] Fig.13 A schematic structural diagram of a second position-limiting member provided in an embodiment of the present invention;

[0042] Fig.14 A schematic diagram of the structure of a connection shell provided by an embodiment of the present invention;

[0043] Fig.15 A schematic diagram of the structure of the shift plate provided by an embodiment of the present invention at a second viewing angle;

[0044] Fig.16 A schematic diagram of the structure of a second limiter, a second spring, a traction line and a connector provided in an embodiment of the present invention;

[0045] Fig.17 A schematic structural diagram of a transmission disc provided in an embodiment of the present invention.

[0046] Icons: 1-child seat; 11-seat plate; 12-back plate; 13-transmission member; 131-first connecting seat; 1311-first seat body; 1312-first reinforcement plate; 1313-first abutment protrusion; 132-second connecting seat; 1321-second seat body; 1322-second reinforcement plate; 133-transmission shaft; 134-first strip hole; 1341-first hole section; 1342-second hole section; 135-second strip hole; 136-first notch; 1361-guide inclined wall; 137-second notch; 138-slide; 139-second Two matching cavities; 14-connecting shaft; 16-connecting shell; 161-first matching cavity; 162-tooth groove; 17-first limiting member; 18-fixed seat; 21-first spring; 22-second limiting member; 221-slider; 222-bump; 223-slot; 23-gear plate; 231-limiting hole; 232-gear plate; 233-avoidance hole; 24-second spring; 25-traction line; 26-connecting head; 27-adjusting handle; 28-transmission plate; 282-transmission groove; 283-second abutting protrusion; 284-transition inclined wall; 29-third spring. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0051] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Please refer to Figure 1 and Figure 2 The present embodiment provides a child seat 1, which includes a seat plate 11, a back plate 12 and a transmission member 13. The back plate 12 is rotatably connected to the seat plate 11, and the transmission member 13 is connected to the seat plate 11 and the back plate 12 at the same time. After the user operates the back plate 12 to rotate, the back plate 12 can drive the transmission member 13 to move, and the transmission member 13 then drives the seat plate 11 to rotate in a direction close to the back plate 12. In this way, during the folding process of the child seat 1, the back plate 12 and the seat plate 11 can rotate towards each other at the same time, so that the folding operation can be completed more quickly, and the folding efficiency is improved.

[0054] It should be noted that Figure 1 For example, in Figure 1 In the right view, the aforementioned “the back plate 12 and the seat plate 11 rotate towards each other at the same time” can be understood as the back plate 12 rotates counterclockwise and the seat plate 11 rotates clockwise.

[0055] Combination Figure 2 In this embodiment, the transmission member 13 includes a first connecting seat 131, a second connecting seat 132 and a transmission shaft 133. The first connecting seat 131 is connected to the back plate 12, the second connecting seat 132 is connected to the seat plate 11, one end of the transmission shaft 133 is movably matched with the first connecting seat 131, and the other end of the transmission shaft 133 is movably matched with the second connecting seat 132.

[0056] In this way, during the rotation of the back plate 12, the first connecting seat 131 rotates with the back plate 12. After the first connecting seat 131 rotates a certain angle, it can act on the transmission shaft 133, and the transmission shaft 133 drives the second connecting seat 132 to rotate, thereby driving the seat plate 11 to rotate.

[0057] It should be noted that the active cooperation between the transmission shaft 133 and the first connection seat 131 can be the active cooperation between the transmission shaft 133 and the groove, or the active cooperation between the transmission shaft 133 and the hole, or the transmission cooperation between the gear and the rack. Similarly, the active cooperation between the transmission shaft 133 and the second connection seat 132 can be the active cooperation between the transmission shaft 133 and the groove, or the active cooperation between the transmission shaft 133 and the hole, or the transmission cooperation between the gear and the rack.

[0058] Please refer to Figure 3 and Figure 4 In this embodiment, the first connecting seat 131 is provided with a first bar hole 134, the second connecting seat 132 is provided with a second bar hole 135, one end of the transmission shaft 133 is movably embedded in the first bar hole 134, and the other end of the transmission shaft 133 is movably embedded in the second bar hole 135.

[0059] It should be noted that when the first connecting seat 131 rotates following the back plate 12, the first strip hole 134 moves relative to the transmission shaft 133, and the transmission shaft 133 can move to different areas of the first strip hole 134. In other words, it can be regarded as the transmission shaft 133 moving along the extension direction of the first strip hole 134.

[0060] It should be noted that, in this embodiment, after the transmission shaft 133 moves to a partial area of ​​the first strip hole 134, the inner wall of the first strip hole 134 can apply a force to the transmission shaft 133, and then the transmission shaft 133 applies a force to the second connecting seat 132, which can ultimately drive the seat plate 11 to rotate in a direction close to the back plate 12.

[0061] For details, please refer to Figure 4 In this embodiment, the first strip-shaped hole 134 includes a first hole segment 1341 and a second hole segment 1342 that are interconnected, and the transmission shaft 133 is used to switchably match the first hole segment 1341 or the second hole segment 1342 under the rotation of the back plate 12. That is, when the first connecting seat 131 rotates following the back plate 12, the transmission shaft 133 can move in the first hole segment 1341 or the second hole segment 1342.

[0062] Moreover, in this embodiment, if the transmission shaft 133 enters into the second hole section 1342, the inner wall of the second hole section 1342 will press against the transmission shaft 133. In this way, the transmission shaft 133 will exert a force on the inner wall of the first strip hole 134, so that the first connecting seat 131 rotates, thereby driving the seat plate 11 to rotate as a whole.

[0063] It should be noted that, in this embodiment, the first hole segment 1341 and the second hole segment 1342 are both arc segments, and the curvature radius of the second hole segment 1342 is greater than the curvature radius of the first hole segment 1341. In other words, the curvature of the second hole segment 1342 is smaller than the curvature of the first hole segment 1341. After the transmission shaft 133 enters the second hole segment 1342, under the action of the inner wall of the second hole segment 1342, the transmission shaft 133 will change its original trajectory, thereby exerting a force on the inner wall of the first strip hole 134, and finally driving the seat plate 11 to rotate in the direction close to the back plate 12.

[0064] It should be noted that, in other embodiments, the first hole segment 1341 and the second hole segment 1342 may both be straight segments, and the extension direction of the first hole segment 1341 is parallel to the extension direction of the second hole segment 1342. Alternatively, the first hole segment 1341 is a straight segment, and the second hole segment 1342 is an arc segment. Alternatively, the first hole segment 1341 is an arc segment, and the second hole segment 1342 is a straight segment.

[0065] In addition, it should be noted that, in the present embodiment, the first connecting seat 131 rotates around the rotation axis, and the rotation axis passes through the center of the circle corresponding to the first hole segment 1341. That is to say, in the present embodiment, the first hole segment 1341 is an arc segment. During the rotation of the first connecting seat 131, if the transmission shaft 133 moves in the first hole segment 1341, the inner wall of the first hole segment 1341 will not apply a force to the transmission shaft 133, and the second connecting seat 132 and the seat plate 11 will not rotate at this time. During the movement of the transmission shaft 133 in the first hole segment 1341, the operator can adjust the inclination angle of the back plate 12, and the inclination angle of the back plate 12 can be adjusted in multiple gears. The multi-gear adjustment mechanism will be described in detail later.

[0066] In this embodiment, the first connection seat 131 and the second connection seat 132 rotate coaxially. In other words, the first connection seat 131 and the second connection seat 132 rotate around the same rotation axis.

[0067] For details, please refer to Figure 2 and Figure 3 In this embodiment, the child seat 1 further comprises a connecting shaft 14, and the first connecting seat 131 and the second connecting seat 132 are sleeved on the connecting shaft 14 at the same time. The aforementioned rotation axis is colinear with the axis of the connecting shaft 14.

[0068] It should be noted that, in this embodiment, the extension direction of the first strip hole 134 is adapted to the moving direction of the transmission shaft 133 relative to the first connecting seat 131, so that during the rotation of the first connecting seat 131, it can be ensured that the first connecting seat 131 and the transmission shaft 133 are not prone to getting stuck.

[0069] Please refer to Figure 2 , Figure 4-Figure 8 In this embodiment, the first connecting seat 131 includes a first seat body 1311 and a first reinforcing plate 1312, the second connecting seat 132 includes a second seat body 1321 and a second reinforcing plate 1322, the first seat body 1311 is connected to the back plate 12, the second seat body 1321 is connected to the seat plate 11, the first reinforcing plate 1312 is installed on the side of the first seat body 1311 close to the second seat body 1321, the second reinforcing plate 1322 is installed on the side of the second seat body 1321 close to the first seat body 1311, and the transmission shaft 133 is simultaneously movably cooperated with the first seat body 1311, the first reinforcing plate 1312, the second seat body 1321 and the second reinforcing plate 1322.

[0070] It should be noted that the first reinforcing plate 1312 and the second reinforcing plate 1322 can enhance the connection strength between the first seat body 1311 and the second seat body 1321 , making the entire folding process more stable and prolonging the service life of the child seat 1 .

[0071] Optionally, the first reinforcing plate 1312 and the second reinforcing plate 1322 may be made of steel plates, iron plates, etc.

[0072] Please note that, please refer to Figure 5-Figure 8 In this embodiment, the first seat body 1311 and the first reinforcing plate 1312 are both provided with the aforementioned first strip hole 134. The second seat body 1321 and the second reinforcing plate 1322 are both provided with the aforementioned second strip hole 135. The transmission shaft 133 simultaneously passes through the first strip hole 134 on the first seat body 1311, the first strip hole 134 on the first reinforcing plate 1312, the second strip hole 135 on the second reinforcing plate 1322, and the second strip hole 135 on the second seat body 1321.

[0073] In other embodiments, the first strip-shaped hole 134 may be provided only on the first seat body 1311 , or the first strip-shaped hole 134 may be provided only on the first reinforcing plate 1312 .

[0074] Similarly, in other embodiments, the second strip-shaped hole 135 may be provided only on the second seat body 1321 , or the second strip-shaped hole 135 may be provided only on the second reinforcing plate 1322 .

[0075] Combination Figure 5 and Figure 6 In this embodiment, the first reinforcing plate 1312 is provided with a first hole section 1341 and a second hole section 1342 that are interconnected, and the first seat body 1311 is also provided with a first hole section 1341 and a second hole section 1342 that are interconnected. The first hole section 1341 on the first reinforcing plate 1312 is aligned with the first hole section 1341 on the first seat body 1311. The second hole section 1342 on the first reinforcing plate 1312 is aligned with the second hole section 1342 on the first seat body 1311. In this way, it is convenient for the transmission shaft 133 to pass through, and when the transmission shaft 133 moves relatively in the two first strip holes 134, it is not easy to get stuck.

[0076] Combination Figure 7 and Figure 8 In this embodiment, the second strip hole 135 on the second seat body 1321 is aligned with the second strip hole 135 of the second reinforcing plate 1322. This makes it easier for the transmission shaft 133 to pass through, and when the transmission shaft 133 moves relatively in the two second strip holes 135, it is not easy to get stuck.

[0077] Optionally, in actual production, the first reinforcing plate 1312 and the first seat body 1311 may be connected by welding, bonding, etc. The second reinforcing plate 1322 and the second seat body 1321 may be connected by welding, bonding, etc.

[0078] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 7 as well as Fig. 9 In this embodiment, the child seat 1 also includes a frame (not shown in the figure), a connecting shell 16 and a first limiting member 17. The second connecting seat 132 is provided with a second notch 137. The connecting shell 16 is connected to the frame. The first limiting member 17 is movably connected to the connecting shell 16. The first limiting member 17 is used to snap into or out of the second notch 137 to lock the second connecting seat 132 on the connecting shell 16 or unlock the second connecting seat 132 from the connecting shell 16.

[0079] It should be noted that the aforementioned “the second connection seat 132 is provided with a second notch 137” can be understood as: the second notch 137 is provided only on the second reinforcing plate 1322. Alternatively, the second notch 137 is provided only on the second seat body 1321. Alternatively, the second seat body 1321 and the second reinforcing plate 1322 are both provided with the second notch 137, and the second notch 137 on the second seat body 1321 and the second notch 137 on the second reinforcing plate 1322 are aligned.

[0080] It should be noted that when the first stopper 17 is inserted into the second notch 137, the second connection seat 132 and the connection shell 16 are in a relatively locked state. Since the connection shell 16 is mounted on the frame in this embodiment, when the first stopper 17 is inserted into the second notch 137, the second connection seat 132 and the frame are in a relatively locked state. That is, at this time, the second connection seat 132 and the seat plate 11 cannot rotate relative to the frame.

[0081] It should be noted that when the first limiting member 17 is disengaged from the second notch 137 , the second connecting seat 132 is unlocked from the connecting shell 16 , that is, at this time, the second connecting seat 132 can rotate relative to the frame under the action of an external force.

[0082] It should be noted that, in the present embodiment, the rotation of the back plate 12 can be understood as the rotation of the back plate 12 relative to the frame, and the rotation of the seat plate 11 can be understood as the rotation of the seat plate 11 relative to the frame.

[0083] Recombination Figure 4-Figure 6 as well as Fig. 9In this embodiment, the first connection seat 131 is provided with a first notch 136, and the first notch 136 has a guiding oblique wall 1361. When the first connection seat 131 rotates, the guiding oblique wall 1361 gradually approaches the first position-limiting member 17. When the first connection seat 131 continues to rotate, the guiding oblique wall 1361 supports the first position-limiting member 17 and finally pushes the first position-limiting member 17 out of the second notch 137. In this way, the second connection seat 132 is switched from a locked state to an unlocked state, and the second connection seat 132 and the seat plate 11 can rotate in a direction close to the back plate 12.

[0084] It should be noted that the aforementioned “the first connection seat 131 is provided with a first notch 136” can be understood as the first notch 136 being provided only on the first seat body 1311. Or the first notch 136 being provided only on the first reinforcing plate 1312. Or the first notch 136 being provided on both the first seat body 1311 and the first reinforcing plate 1312, and the two first notches 136 are aligned with each other.

[0085] Combination Figure 4 In this embodiment, the child seat 1 also includes a first spring 21, and a first matching cavity 161 matching with the first limiting member 17 is provided in the connecting shell 16. The first spring 21 is accommodated in the first matching cavity 161, and one end of the first spring 21 abuts against the bottom wall of the first matching cavity 161, and the other end of the first spring 21 abuts against the first limiting member 17.

[0086] In this way, when the child seat 1 is unfolded from the folded state, the second notch 137 can be rotated to a position aligned with the first stopper 17. At this time, under the action of the first spring 21, the first stopper 17 can be pushed into the second notch 137, so that the second connecting seat 132 is switched from the unlocked state to the locked state, and the second connecting seat 132 and the seat plate 11 cannot rotate relative to the frame.

[0087] Please refer to Figure 10-15 , and combined with Figure 2 The child seat 1 also includes a second limiting member 22 and a shift plate 23. The second limiting member 22 is movably mounted on the first connecting seat 131. The shift plate 23 is mounted on a side of the connecting shell 16 close to the first connecting seat 131. A plurality of limiting holes 231 are provided on the peripheral wall of the shift plate 23.

[0088] It is understandable that, when the second stopper 22 is not inserted into the stopper hole 231, during the rotation of the back plate 12 and the first connection seat 131, the second stopper 22 can rotate along with the first connection seat 131, and the second stopper 22 can move on the peripheral wall between two adjacent stopper holes 231. When the second stopper 22 moves into one of the stopper holes 231, the first connection seat 131 and the back plate 12 cannot rotate relative to the frame, and the first connection seat 131 and the frame are in a relatively locked state.

[0089] In this embodiment, the back panel 12 and the first connecting seat 131 can have multiple levels of rotation travel. When the second limiting member 22 cooperates with different limiting holes 231, the inclination angles of the back panel 12 and the first connecting seat 131 are different. The user can adjust the second limiting member 22 to cooperate with different limiting holes 231 according to actual needs.

[0090] Optionally, the number of the limiting holes 231 is four, and the back plate 12 and the first connecting seat 131 can be adjusted in four gears. The first connecting seat 131 rotates in the first gear, the second gear or the third gear, and the transmission shaft 133 moves in the first hole section 1341. The first connecting seat 131 will not drive the second connecting seat 132 and the seat plate 11 to rotate, and only the inclination angle of the back plate 12 is changed. The first connecting seat 131 rotates in the fourth gear, and the transmission shaft 133 enters the second hole section 1342. At this time, the guiding inclined wall 1361 pushes the first limiting member 17 out of the second notch 137, and the second connecting seat 132 is in an unlocked state. The first connecting seat 131 can drive the second connecting seat 132 and the seat plate 11 to rotate through the transmission shaft 133, thereby improving the folding efficiency.

[0091] Combination Fig.15 and Fig.16 In this embodiment, a gear plate 232 is provided on the shift plate 23, and a tooth groove 162 is provided on the connecting shell 16. The gear plate 232 is embedded in the tooth groove 162. The shift plate 23 and the connecting shell 16 are in a relatively fixed state. The shift plate 23 and the connecting shell 16 are two independent parts that can be molded separately, which is convenient for production and manufacturing.

[0092] Combination Figure 6 and Fig.13 In this embodiment, the first connecting seat 131 is provided with a slide groove 138, and the second limiting member 22 includes a slider 221 and a protrusion 222. The slider 221 can be movably embedded in the slide groove 138, and the protrusion 222 protrudes relative to the slider 221. The protrusion 222 can be inserted into or disengaged from the limiting hole 231.

[0093] Combination Fig.11In this embodiment, the child seat 1 further includes a second spring 24 , one end of the second spring 24 is connected to the first connecting seat 131 , and the other end of the second spring 24 abuts against the second limiting member 22 .

[0094] When the aforementioned protrusion 222 is separated from the limiting hole 231, the slider 221 slides in the slide groove 138, and the slider 221 can squeeze the second spring 24. That is, in the process of the protrusion 222 sliding on the peripheral wall between the two limiting holes 231, the second spring 24 is always in a compressed state, and when the protrusion 222 moves to a position corresponding to one of the limiting holes 231, under the action of the restoring force, the second spring 24 can push the protrusion 222 into the limiting hole 231, so that the first connecting seat 131 and the back plate 12 are locked on the rack.

[0095] Specifically, in this embodiment, a second matching cavity 139 is provided in the first connecting seat 131 , and one end of the second spring 24 away from the second limiting member 22 is mounted on the inner wall of the second matching cavity 139 .

[0096] Please refer to Figure 2 , Figure 6 , Fig.15 as well as Fig.17 In this embodiment, a first abutment protrusion 1313 is provided on the first seat body 1311, and an avoidance hole 233 is provided on the shift plate 23. The child seat 1 also includes a transmission plate 28 and a fixed seat 18 connected to a frame (not shown in the figure). The fixed seat 18 is relatively fixed to the frame. The transmission plate 28 and the shift plate 23 are stacked. A second abutment protrusion 283 is provided on the side of the transmission plate 28 close to the shift plate 23. The transmission plate 28 is installed on the fixed seat 18, and the transmission plate 28 can be detachably installed on the connecting shell 16 to switch between the first state and the second state.

[0097] Specifically, in the first state, the transmission disc 28 is mounted on the connection shell 16, the second abutting protrusion 283 passes through the avoidance hole 233, and the connection shell 16 is fixed relative to the fixing seat 18. In the second state, the first abutting protrusion 1313 is used to support the second abutting protrusion 283 to separate the transmission disc 28 from the connection shell 16 when the first seat body 1311 rotates to a preset position following the back plate 12, and both the connection shell 16 and the transmission disc 28 can rotate relative to the fixing seat 18 following the first connection seat 131.

[0098] It should be noted that, in this embodiment, the transmission disc 28 and the shift disc 23 are stacked in the axial direction of the connecting shaft 14 , the shift disc 23 is disposed close to the first seat body 1311 , and the transmission disc 28 is disposed close to the fixing seat 18 .

[0099] In the first state, the transmission disc 28 is mounted on the connection shell 16, and the transmission disc 28 is provided with a gear structure similar to the gear disc 232. The transmission disc 28 and the shift disc 23 can be simultaneously embedded in the tooth groove 162 of the connection shell 16. It can be understood that after the transmission disc 28 is embedded in the tooth groove 162, since the transmission disc 28 is connected to the fixing seat 18, in this case, the connection shell 16 is locked on the fixing seat 18, that is, the connection shell 16 cannot rotate relative to the frame.

[0100] It should be noted that the avoidance hole 233 can provide an avoidance space for the second abutting protrusion 283 and the first abutting protrusion 1313 to prevent the shift plate 23 from separating the second abutting protrusion 283 from the first abutting protrusion 1313 .

[0101] In the second state, the back plate 12 rotates, and the first seat body 1311 can rotate with the back plate 12. When the first seat body 1311 rotates a preset angle, the position of the first abutment protrusion 1313 corresponds to the position of the second abutment protrusion 283. At this time, the first abutment protrusion 1313 can support the second abutment protrusion 283, so that the transmission plate 28 can be pushed out of the tooth groove 162.

[0102] It is understandable that, when the transmission disc 28 is pushed out of the tooth groove 162, the connection shell 16 is no longer restricted by the matching structure between the transmission disc 28 and the tooth groove 162, and at this time, the connection shell 16 can rotate with the first seat body 1311 and the shift plate 23. Therefore, in the second state, the back plate 12 and the seat plate 11 can rotate relative to the fixed seat 18, and finally the back plate 12 and the seat plate 11 can be overlapped with the frame, which is convenient for carrying and transferring.

[0103] Combination Figure 2 In this embodiment, the child seat 1 further includes a third spring 29, which is disposed between the transmission disc 28 and the fixing seat 18, and two ends of the third spring 29 abut against the transmission disc 28 and the fixing seat 18 respectively.

[0104] In the second state, the first abutting protrusion 1313 abuts against the second abutting protrusion 283, the transmission disc 28 is pushed out of the tooth groove 162, the transmission disc 28 moves toward the fixing seat 18, and the third spring 29 between the transmission disc 28 and the fixing seat 18 is compressed.

[0105] Then, the first seat body 1311 continues to rotate, and after rotating a certain angle, the first abutment protrusion 1313 separates from the second abutment protrusion 283, and under the action of the restoring force of the third spring 29, the transmission plate 28 is pushed back into the tooth groove 162 to lock the connecting shell 16 on the fixing seat 18 again.

[0106] Optionally, the number of the third springs 29 may be one, two, three, etc.

[0107] Optionally, when there are three third springs 29, the three third springs 29 are arranged at intervals along the circumference of the transmission disc 28, and the three third springs 29 can simultaneously drive the transmission disc 28 to return to the initial position. The transmission disc 28 moves under the joint action of the three third springs 29, and is not prone to deflection. In this way, the transmission disc 28 can be more accurately installed in the tooth groove 162.

[0108] Combination Fig.17 In this embodiment, an annular transmission groove 282 is provided on the transmission disk 28, and the second abutment protrusion 283 is protrudingly provided in the transmission groove 282. It should be noted that in the first state, the first abutment protrusion 1313 is slidably matched with the transmission groove 282.

[0109] When the first abutment protrusion 1313 slides in the transmission groove 282, the first seat body 1311 rotates along with the back plate 12, and the back plate 12 and the seat plate 11 rotate relatively close to each other. After the back plate 12 and the seat plate 11 are folded, the first abutment protrusion 1313 moves to the position corresponding to the second abutment protrusion 283, and the first abutment protrusion 1313 supports the second abutment protrusion 283, and the first state is switched to the second state.

[0110] Specifically, in this embodiment, a transition inclined wall 284 is also provided on the transmission disk 28, and the transition inclined wall 284 extends from the bottom wall of the transmission groove 282 to the top wall of the second abutment protrusion 283. The transition inclined wall 284 can guide the first abutment protrusion 1313 to move from the transmission groove 282 to the top wall of the second abutment protrusion 283 to support the second abutment protrusion 283.

[0111] That is to say, under the guidance of the transition inclined wall 284, the first abutment protrusion 1313 can move more smoothly from the bottom wall of the transmission groove 282 to the top wall of the second abutment protrusion 283, and it is not easy for the first abutment protrusion 1313 and the second abutment protrusion 283 to get stuck.

[0112] Optionally, the surface of the transition inclined wall 284 may be a plane or a curved surface.

[0113] Combination Figure 2 , Fig.11 as well as Fig.16 The child seat 1 further includes a traction line 25 and a connector 26 , one end of the traction line 25 is connected to the connector 26 , the second limiting member 22 is provided with a slot 223 , and the connector 26 is embedded in the slot 223 .

[0114] In this way, the user pulls the traction line 25, the connector 26 moves with the traction line 25, and the connector 26 drives the second stopper 22 to move, so that the second stopper 22 can be separated from the stopper hole 231, so that the first connection seat 131 and the back plate 12 can be unlocked from the connection shell 16, and the first connection seat 131 and the back plate 12 can be rotated relative to the frame. In other words, when the inclination angle of the back plate 12 needs to be adjusted, the traction line 25 can be pulled to unlock the first connection seat 131 and the back plate 12 from the connection shell 16.

[0115] It should be noted that, in actual installation, the second spring 24 is sleeved on the traction line 25 , and the connector 26 is embedded in the slot 223 .

[0116] Combination Figure 2 In this embodiment, the child seat 1 also includes an adjustment handle 27, which is transmission-connected to the traction line 25. The adjustment handle 27 can be operated to switch different gears so that the back panel 12 is at different tilt angles.

[0117] In summary, the working principle of the child seat 1 provided in this embodiment is as follows:

[0118] Taking the child seat 1 with four-speed adjustment as an example, in the first, second or third gear, the adjustment handle 27 is operated, and the traction line 25 pulls the second limiter 22 out of the limiter hole 231 through the connector 26, so that the inclination angle of the first connection seat 131 and the back plate 12 can be adjusted. In this process, the transmission shaft 133 moves in the first hole section 1341, and the inner wall of the first hole section 1341 does not apply force to the transmission shaft 133, and the second connection seat 132 is locked by the first limiter 17, and the second connection seat 132 and the seat plate 11 will not rotate with it. In different gears, the inclination angle of the back plate 12 is different, and the user can adjust different gears according to actual needs.

[0119] In the fourth gear, operate the adjusting handle 27, the traction line 25 pulls the second limit piece 22 out of the limit hole 231 through the connecting head 26, the first connecting seat 131 and the back plate 12 rotate relative to the frame, and the transmission shaft 133 moves into the second hole section 1342. At the same time, the guiding inclined wall 1361 pushes the first limit piece 17 out of the second notch 137, the second connecting seat 132 is unlocked, and the inner wall of the second hole section 1342 applies a force to the transmission shaft 133. The transmission shaft 133 drives the second connecting seat 132 and the seat plate 11 to rotate, and the seat plate 11 rotates toward the direction close to the back plate 12. The back plate 12 and the seat plate 11 can be folded quickly, thereby improving the folding efficiency.

[0120] In the first gear, second gear, third gear or fourth gear, the first abutment protrusion 1313 slides in the transmission groove 282. When the seat plate 11 and the back plate 12 are folded, the first abutment protrusion 1313 just moves to the position corresponding to the second abutment protrusion 283. The first abutment protrusion 1313 supports the second abutment protrusion 283, so that the transmission disk 28 pushes out of the connecting shell 16. Then the user can control the seat plate 11 and the back plate 12 to rotate relative to the fixed seat 18 at the same time, and finally make the back plate 12 and the seat plate 11 overlap with the frame, which is convenient for subsequent carrying and transfer.

[0121] The above description is only a specific embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A child seat, characterized in that: The invention comprises a seat plate (11), a back plate (12) and a transmission member (13), wherein the back plate (12) is rotatably connected to the seat plate (11), and the transmission member (13) is simultaneously connected to the seat plate (11) and the back plate (12), and the transmission member (13) is used for driving the seat plate (11) to rotate in a direction close to the back plate (12) under the rotation of the back plate (12); the transmission member (13) comprises a first connecting seat (131), a second connecting seat (132) and a transmission shaft (133), wherein the first connecting seat (131) and the back plate (12) are connected to each other. The back plate (12) is connected to the second connection seat (132) and the seat plate (11); one end of the transmission shaft (133) is movably matched with the first connection seat (131); the other end of the transmission shaft (133) is movably matched with the second connection seat (132); the first connection seat (131) includes a first seat body (1311) and a first reinforcement plate (1312); the second connection seat (132) includes a second seat body (1321) and a second reinforcement plate (1322); the first seat body (1311) and the back plate (12) are connected to the second connection seat (132); ), the second seat body (1321) is connected to the seat plate (11), the first reinforcing plate (1312) is installed on a side of the first seat body (1311) close to the second seat body (1321), the second reinforcing plate (1322) is installed on a side of the second seat body (1321) close to the first seat body (1311), and the transmission shaft (133) is simultaneously connected to the first seat body (1311), the second reinforcing plate (1322), the second seat body (1321) and the second reinforcing plate (1322). Active engagement; the child seat (1) further comprises a frame, a connecting shell (16) and a first limiting member (17); the second connecting seat (132) is provided with a second notch (137); the connecting shell (16) is connected to the frame; the first limiting member (17) is movably connected to the connecting shell (16); and the first limiting member (17) is used to engage in or disengage from the second notch (137) to lock the second connecting seat (132) on the connecting shell (16) or unlock the second connecting seat (132) from the connecting shell (16).

2. The child seat according to claim 1, characterized in that: The first connecting seat (131) is provided with a first strip-shaped hole (134), the second connecting seat (132) is provided with a second strip-shaped hole (135), one end of the transmission shaft (133) is movably embedded in the first strip-shaped hole (134), and the other end of the transmission shaft (133) is movably embedded in the second strip-shaped hole (135).

3. The child seat according to claim 2, characterized in that: The first strip-shaped hole (134) comprises a first hole section (1341) and a second hole section (1342) which are interconnected; the transmission shaft (133) is used to switchably cooperate with the first hole section (1341) or the second hole section (1342) under the rotation of the back plate (12); and the seat plate (11) is used to be driven by the transmission shaft (133) and rotate in a direction close to the back plate (12) when the transmission shaft (133) cooperates with the second hole section (1342).

4. The child seat according to claim 3, characterized in that: The first hole segment (1341) and the second hole segment (1342) are both arc segments; the first connecting seat (131) rotates around a rotation axis, the rotation axis passes through the center of a circle corresponding to the first hole segment (1341); and the curvature radius of the second hole segment (1342) is greater than the curvature radius of the first hole segment (1341).

5. The child seat according to claim 1, characterized in that: The first connecting seat (131) is provided with a first notch (136), and the first notch (136) has a guiding inclined wall (1361). The guiding inclined wall (1361) is used to support the first limiting member (17) under the action of the rotation of the first connecting seat (131), so as to push the first limiting member (17) out of the second notch (137).

6. The child seat according to claim 5, characterized in that: The child seat (1) further comprises a first spring (21); the connecting shell (16) is provided with a first matching cavity (161) matching with the first limiting member (17); the first spring (21) is accommodated in the first matching cavity (161); one end of the first spring (21) abuts against the bottom wall of the first matching cavity (161); the other end of the first spring (21) abuts against the first limiting member (17); the first spring (21) is used to push the first limiting member (17) into the second notch (137).

7. The child seat according to claim 1, characterized in that: The child seat (1) further comprises a second limiting member (22) and a shift plate (23); the second limiting member (22) is movably mounted on the first connecting seat (131); the shift plate (23) is mounted on a side of the connecting shell (16) close to the first connecting seat (131); a plurality of limiting holes (231) are arranged on a peripheral wall of the shift plate (23); the second limiting member (22) is used to cooperate with one of the limiting holes (231), or the second limiting member (22) is used to slidably abut against the peripheral wall between two adjacent limiting holes (231).

8. The child seat according to claim 7, characterized in that: The first connecting seat (131) is provided with a first abutting protrusion (1313), the shift plate (23) is provided with an avoidance hole (233), the child seat (1) further comprises a transmission plate (28) and a fixing seat (18) for connecting to the frame, the transmission plate (28) and the shift plate (23) are arranged in a stacked manner, a second abutting protrusion (283) is provided on a side of the transmission plate (28) close to the shift plate (23), the transmission plate (28) is mounted on the fixing seat (18), and the transmission plate (28) is detachably mounted on the connecting shell (16) to switch between a first state and a second state; In the first state, the transmission plate (28) is mounted on the connection shell (16), the second abutment protrusion (283) passes through the avoidance hole (233), and the connection shell (16) is fixed relative to the fixing seat (18); In the second state, the first abutment protrusion (1313) is used to support the second abutment protrusion (283) when the first connecting seat (131) rotates to a preset position following the back plate (12), so as to separate the transmission disk (28) from the connecting shell (16), and the connecting shell (16) and the transmission disk (28) both rotate relative to the fixing seat (18) following the first connecting seat (131).

9. The child seat according to claim 8, characterized in that: The child seat (1) further comprises a third spring (29), wherein the third spring (29) is arranged between the transmission disc (28) and the fixing seat (18), and the two ends of the third spring (29) respectively abut against the transmission disc (28) and the fixing seat (18), and the third spring (29) is used to be compressed in the second state, and the third spring (29) is used to drive the transmission disc (28) to return to an initial position when the first abutting protrusion (1313) and the second abutting protrusion (283) are separated.

10. The child seat according to claim 8, characterized in that: The transmission disc (28) is provided with an annular transmission groove (282), and the second abutment protrusion (283) is protrudingly provided in the transmission groove (282); Wherein, in the first state, the first abutment protrusion (1313) is slidably engaged with the transmission groove (282).

11. The child seat according to claim 10, characterized in that: The transmission disc (28) is also provided with a transition inclined wall (284), which extends from the bottom wall of the transmission groove (282) to the top wall of the second abutment protrusion (283), and the transition inclined wall (284) is used to guide the first abutment protrusion (1313) to move from the transmission groove (282) to the top wall of the second abutment protrusion (283) to support the second abutment protrusion (283).

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