Child safety seat

Abstract

The utility model discloses a child safety seat which comprises a seat body, a backrest, a first side wing and a second side wing, the first side wing and the second side wing are oppositely arranged, the first side wing, the second side wing and the backrest define a space for containing the trunk part of a child, the first side wing and the second side wing can rotate relative to the backrest, and the child safety seat comprises an adjusting mechanism. The adjusting mechanism comprises a first adjusting seat and a second adjusting seat which are rotationally arranged on the first side wing and the second side wing respectively, and a screw rod which is in threaded connection with the first adjusting seat and the second adjusting seat, and the screw rod is provided with a first threaded section and a second threaded section which are connected with the first adjusting seat and the second adjusting seat respectively; the thread directions of the first thread section and the second thread section are opposite, when the lead screw rotates in the first direction or the second direction, the first side wing and the second side wing are driven to rotate inwards or outwards at the same time, so that the space is reduced or enlarged, and operation is convenient.

Description

Technical Field

[0001] This application relates to the technical field of child safety seats, and specifically to a child safety seat with convenient side wing adjustment. Background Art

[0002] Existing child safety seats generally include a seat and a backrest, as well as two side wings rotatably connected to both sides of the backrest. Independent adjustment mechanisms for respectively adjusting the rotation angles of the two side wings are provided between the two side wings and the backrest. Therefore, when adjusting, it is necessary to separately adjust the two side wings step by step, and the operation is cumbersome. Utility Model Content

[0003] This application provides a child safety seat that can synchronously adjust the two side wings, and the operation is convenient.

[0004] This application provides a child safety seat, including a seat for supporting a child's buttocks, a backrest for supporting a child's back, and a first side wing and a second side wing arranged oppositely. The first side wing, the second side wing and the backrest enclose a space for accommodating a child's torso part. The first side wing and the second side wing can both rotate relative to the backrest. The child safety seat includes an adjustment mechanism for adjusting the size of the space by changing the rotation angles of the first side wing and the second side wing. The adjustment mechanism includes a first adjustment seat and a second adjustment seat respectively rotatably provided on the first side wing and the second side wing, and a lead screw threadedly connected to the first adjustment seat and the second adjustment seat. The lead screw has a first thread section and a second thread section respectively connected to the first adjustment seat and the second adjustment seat. The thread directions of the first thread section and the second thread section are opposite. When the lead screw rotates in a first direction, it drives the first side wing and the second side wing to rotate inward simultaneously to narrow the space. When the lead screw rotates in a second direction, it drives the first side wing and the second side wing to rotate outward simultaneously to expand the space.

[0005] The following also provides several optional ways, but they are not additional limitations to the above overall solution, but only further supplements or optimizations. On the premise of no technical or logical contradictions, each optional way can be combined with the above overall solution alone, or multiple optional ways can be combined with each other.

[0006] Optionally, the first side wing and the second side wing are rotatably installed on both sides of the backrest, and the lead screw penetrates through the backrest.

[0007] Optionally, the backrest has a front side and a rear side. The rotation axes of the first side wing and the second side wing are arranged close to the rear side, and the lead screw is arranged close to the front side.

[0008] Optionally, the backrest is provided with a channel for the lead screw to pass through, and the channel has a space allowing the lead screw to move back and forth.

[0009] Optionally, the first wing and the second wing can rotate around the first axis and the second axis respectively, the first adjusting seat and the second adjusting seat can rotate around the third axis and the fourth axis respectively, the first axis, the second axis, the third axis and the fourth axis are arranged in parallel, and are perpendicular to the extending direction of the lead screw.

[0010] Optionally, at least one end of the lead screw extends out of the corresponding wing and is provided with an operating member.

[0011] Optionally, when the first wing and the second wing rotate outward to the maximum angle, the operating member abuts against the corresponding adjusting seat for limiting.

[0012] Optionally, the corresponding wing is provided with a counterbore for accommodating at least a part of the operating member.

[0013] Optionally, the backrest has a limiting portion, and when the first wing and the second wing rotate inward to the minimum angle, at least one wing abuts against the limiting portion.

[0014] Optionally, the child safety seat includes a headrest provided on the backrest, the two sides of the seat have first side enclosures extending upward, the two sides of the headrest have second side enclosures, and the first wing and the second wing are located between the first side enclosures and the second side enclosures.

[0015] For the child safety seat of the present application, by rotating the lead screw, the first adjusting seat and the second adjusting seat approach or move away from each other, and correspondingly drive the first wing and the second wing to synchronously fold or unfold, which is more convenient to operate. Description of the Drawings

[0016] Figure 1 It is a structural view of the first wing and the second wing of the child safety seat according to an embodiment of the present application when approaching each other;

[0017] Figure 2 It is a structural view of the first wing and the second wing of the child safety seat according to an embodiment of the present application when moving away from each other;

[0018] Figure 3 It is an exploded view of the second wing, the lead screw and the second adjusting seat of the child safety seat according to an embodiment of the present application;

[0019] Figure 4 It is Figure 3 a partial exploded view in

[0020] Figure 5 It is Figure 2 the front view of the child safety seat in

[0021] Figure 6 is Figure 5 a partial sectional view taken along the A-A direction in

[0022] Figure 7 is Figure 6 an enlarged view of part B in

[0023] Figure 8 is Figure 6 an enlarged view of part B in (with reduced space);

[0024] Figure 9 is Figure 1 a structural view of the child safety seat from another perspective.

[0025] The reference numerals in the figure are explained as follows:

[0026] 1000, child safety seat;

[0027] 110, seat; 111, first side enclosure;

[0028] 120, backrest; 130, headrest; 131, second side enclosure;

[0029] 210, first wing; 211, first adjustment base;

[0030] 220, second wing; 221, second adjustment base;

[0031] 230, lead screw; 231, first threaded section; 232, second threaded section; 233, operating member; 240, sunk groove. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0035] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity or order of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] Referring to Figures 1 to 8 , this application provides a child safety seat 1000, which can be used to be installed on an automobile seat and has a central symmetry plane. The child safety seat 1000 of this embodiment includes a seat 110 for supporting the child's buttocks, a backrest 120 for supporting the child's back, and a first wing 210 and a second wing 220 which are oppositely arranged (symmetric with respect to the central symmetry plane in terms of spatial position). The first wing 210, the second wing 220 and the backrest 120 enclose a space for accommodating the child's torso part, and the two wings are mainly used to reduce the harm caused by side impacts to the child. For the convenience of description, the child safety seat 1000 has a front side facing the child's face, a relative rear side, and a width direction in the direction where the two wings are located. Unless otherwise specifically stated, the following "both sides" refer to both sides in the width direction.

[0037] Among them, both the first wing 210 and the second wing 220 can rotate relative to the backrest 120, and the two wings have different rotation angles relative to the central symmetry plane. The child safety seat 1000 includes an adjustment mechanism for adjusting the space size by changing the rotation angles of the first wing 210 and the second wing 220. The adjustment mechanism includes:

[0038] A first adjustment seat 211, which is rotatably arranged on the first wing 210;

[0039] A second adjustment seat 221, which is rotatably arranged on the second wing 220;

[0040] The lead screw 230 has a first thread section 231 and a second thread section 232 with opposite thread directions. The first thread section 231 is threadedly connected to the first adjusting seat 211, and the second thread section 232 is threadedly connected to the second adjusting seat 221. The specific operation for adjusting the rotation angles of the two wings is as follows: operating the lead screw 230 to rotate in the first direction drives the first adjusting seat 211 and the second adjusting seat 221 to approach each other. Correspondingly, the first wing 210 and the second wing 220 rotate inward simultaneously to reduce the space; operating the lead screw 230 to rotate in the second direction (opposite to the first direction) drives the first adjusting seat 211 and the second adjusting seat 221 to move away from each other. Correspondingly, the first wing 210 and the second wing 220 rotate outward simultaneously to increase the space.

[0041] The adjusting mechanism of the child safety seat of the present application can realize the synchronous expansion or retraction of the two wings to adapt to children of different body types or the body type changes caused by wearing clothes of different thicknesses, and the operation is convenient. And through the thread fit, stepless adjustment can also be realized, while improving the adjustment accuracy of the rotation angles of the two wings.

[0042] The two wings can be rotatably connected to the seat 110 or the backrest 120. In the figure, the first wing 210 and the second wing 220 are rotatably installed on both sides of the backrest 120. The lead screw 230 penetrates through the backrest 120 in the width direction, and the first thread section 231 and the second thread section 232 are respectively arranged at the ends of the lead screw 230, or the two thread sections are respectively arranged adjacent to the ends of the lead screw 230. Further, the backrest 120 includes an upper section and a lower section. The lower section is connected to the seat 110, and the upper section can slide vertically relative to the lower section, and thus its height is adjustable. The first wing 210 and the second wing 220 are rotatably connected to the upper section, so they can be lifted and lowered together with the upper section of the backrest 120.

[0043] The rotation axes of the first wing 210 and the second wing 220 are arranged close to the rear side of the backrest 120, and the lead screw 230 is arranged close to the front side of the backrest 120. Then, when the lead screw 230 is rotated by the same number of turns, the farther the adjustment point (i.e., the position of the adjusting seat) is from the rotation axis, the slower the rotation angle change rate of the first wing 210 and the second wing 220, avoiding too fast adjustment and ensuring the adjustment accuracy. In addition, at the position close to the rear side, the back surfaces of the two wings are arc-shaped structures, and the space inside the wings for installing the adjusting seat is limited, while there is sufficient installation space at the position close to the front side.

[0044] Taking the seat 110 as a reference, during the rotation of the two wings, the corresponding two adjusting seats have displacements in the front-back direction in space. Correspondingly, the backrest 120 is provided with a channel for the lead screw 230 to pass through, and the channel has a space allowing the lead screw 230 to move back and forth.

[0045] In one embodiment, the first wing 210 and the second wing 220 can rotate around the first axis and the second axis respectively, and the first adjusting seat 211 and the second adjusting seat 221 can rotate around the third axis and the fourth axis respectively. The first axis, the second axis, the third axis, and the fourth axis are arranged in parallel and perpendicular to the extending direction of the lead screw 230.

[0046] For convenient operation, at least one end of the lead screw 230 extends out of the corresponding wing and is provided with an operating member 233. For example, as shown in the figure, both ends of the lead screw 230 extend out of the corresponding wing and are provided with operating members 233, which is convenient for operating either side. The outer contour of the operating member 233 is generally a columnar structure, and a protective layer is provided on the surface, such as anti-slip threads are processed, etc. The operating member 233 is fixedly connected to the lead screw 230.

[0047] Refer to Figure 7 , when the first wing 210 and the second wing 220 rotate outward to the maximum angle, the operating member 233 abuts against the corresponding adjusting seat for limiting. For example, the radial dimension of the operating member 233 is larger than that of the lead screw 230, and the aforementioned limiting is that the adjusting seat abuts against the end of the corresponding operating member 233. In one embodiment, a counterbore 240 (as shown in Figure 9 ) for accommodating at least a part of the operating member 233 is provided in the corresponding wing, so as to prevent the operating member 233 from protruding too much from the child safety seat, which may affect the installation and the seating of other passengers. Further, the spatial dimension of the counterbore 240 is such that at least a finger of a person can reach in to facilitate the control of the operating member 233.

[0048] Refer to Figure 8 , where the backrest 120 has a limiting portion. When the first wing 210 and the second wing 220 rotate inward to the minimum angle, at least one wing abuts against the limiting portion. In the figure, limiting portions for respectively abutting against the first wing 210 and the second wing 220 are provided on both sides of the backrest 120.

[0049] In one embodiment, the child safety seat 1000 includes a headrest 130 provided on the backrest 120. On both sides of the seat 110, there are first side enclosures 111 extending upward, and the first side enclosures 111 are used to protect the periphery of the child's buttocks. On both sides of the headrest 130, there are second side enclosures 131, and the second side enclosures 131 are located on both sides of the child's head. Among them, the first wing 210 and the second wing 220 are located between the first side enclosures 111 and the second side enclosures 131.

[0050] In one embodiment, an ISOFIX standard interface for docking with an automobile seat is provided on the seat 110.

[0051] For the child safety seat of the present application, by rotating the lead screw, the first adjusting seat and the second adjusting seat move closer to or away from each other, correspondingly driving the first wing and the second wing to synchronously close or unfold, which is more convenient to operate.

[0052] 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. When the technical features in different embodiments are embodied in the same drawing, the drawing can be regarded as simultaneously disclosing the combined examples of the various embodiments involved.

[0053] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. 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.

Claims

1. A child safety seat, comprising a seat for supporting a child's buttocks, a backrest for supporting a child's back, and a first side wing and a second side wing arranged opposite to each other, wherein the first side wing, the second side wing and the backrest together form a space for accommodating a child's torso, the first side wing and the second side wing can both rotate relative to the backrest, and the child safety seat comprises an adjustment mechanism for adjusting the size of the space by changing the rotation angle of the first side wing and the second side wing, characterized in that: The adjustment mechanism includes a first adjustment seat and a second adjustment seat rotatably arranged on the first side wing and the second side wing respectively, and a screw rod threadedly connected to the first adjustment seat and the second adjustment seat, the screw rod has a first thread segment and a second thread segment respectively connected to the first adjustment seat and the second adjustment seat, and the thread directions of the first thread segment and the second thread segment are opposite. When the screw rod rotates in a first direction, the first side wing and the second side wing are driven to rotate inward at the same time to reduce the space. When the screw rod rotates in a second direction, the first side wing and the second side wing are driven to rotate outward at the same time to expand the space.

2. The child safety seat according to claim 1, characterized in that: The first side wing and the second side wing are rotatably mounted on both sides of the backrest, and the screw rod passes through the backrest.

3. The child safety seat according to claim 2, characterized in that: The backrest has a front side and a rear side, the rotation axes of the first side wing and the second side wing are arranged close to the rear side, and the screw rod is arranged close to the front side.

4. The child safety seat according to claim 2, characterized in that: The backrest is provided with a channel for the screw rod to pass through, and the channel has a space allowing the screw rod to move forward and backward.

5. The child safety seat according to claim 1, characterized in that: The first side wing and the second side wing can rotate around the first axis and the second axis respectively, the first adjustment seat and the second adjustment seat can rotate around the third axis and the fourth axis, and the first axis, the second axis, the third axis and the fourth axis are arranged in parallel and perpendicular to the extension direction of the screw rod.

6. The child safety seat according to claim 1, characterized in that: At least one end of the screw rod extends out of the corresponding wing and is provided with an operating member.

7. The child safety seat according to claim 6, characterized in that: When the first side wing and the second side wing rotate outward to a maximum angle, the operating member abuts against the corresponding adjustment seat to limit the position.

8. The child safety seat according to claim 6, characterized in that: The corresponding side wings are provided with a recessed groove for accommodating at least part of the operating member.

9. The child safety seat according to claim 1, characterized in that: The backrest has a limiting portion, and when the first side wing and the second side wing rotate inward to a minimum angle, at least one side wing abuts against the limiting portion.

10. The child safety seat according to claim 1, characterized in that: The invention comprises a headrest arranged on the backrest, the two sides of the seat are provided with first side surrounds extending upwards, the two sides of the headrest are provided with second side surrounds, and the first side wing and the second side wing are located between the first side surround and the second side surround.

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