Safety seat

Abstract

The application provides a safety seat, and relates to the technical field of seats.The safety seat comprises a base, a cushion, a backrest and an adjusting device; the cushion is slidably connected to the base in a horizontal direction; the backrest is hingedly connected to the base, and the backrest is drivingly connected to the cushion; and the adjusting device is installed on the base and is used for adjusting the movement of the cushion relative to the base.In the process of adjusting the inclination angle of the backrest, the cushion slides in the horizontal direction, and the gravity center of the seat does not change, so that the riding comfort is not affected.

Description

Technical Field

[0001] This invention relates to the field of seat technology, and in particular to a safety seat. Background Technology

[0002] Most car seats on the market have adjustable angles, which may make a clicking sound when adjusting or shift the child's center of gravity. This can be disruptive if the child is resting or sleeping. Furthermore, adjusting the recline changes the child's center of gravity, thus affecting their comfort. Summary of the Invention

[0003] The purpose of this invention is to provide a safety seat that alleviates the technical problem that the adjustment of the backrest angle of a safety seat affects the riding comfort in the prior art.

[0004] In a first aspect, the safety seat provided by the present invention includes: a base, a seat cushion, a backrest, and an adjustment device;

[0005] The seat cushion is slidably connected to the base in a horizontal direction;

[0006] The chair back is hinged to the base, and the chair back is throttle connected to the seat cushion.

[0007] The adjustment device is mounted on the base and is used to adjust the movement of the seat cushion relative to the base.

[0008] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the adjusting device comprises: a positioning block and a threaded rod;

[0009] The positioning block is connected to the base, the threaded rod passes through the positioning block and the cushion, one of the positioning block and the cushion is axially fixed with the threaded rod, and the other of the positioning block and the cushion cooperates with the threaded rod.

[0010] In conjunction with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein a knob is mounted on the end of the threaded rod.

[0011] In conjunction with the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the bottom of the chair back is connected to a sliding shaft, the seat cushion is provided with a sliding track, and the sliding shaft is slidably engaged within the sliding track.

[0012] In conjunction with the third possible implementation of the first aspect, the present invention provides a fourth possible implementation of the first aspect, wherein the slide extends from bottom to top along the direction of the plumb bob.

[0013] In conjunction with the first aspect, the present invention provides a fifth possible implementation of the first aspect, wherein a limiting post is installed on the base, the seat cushion is provided with a sliding groove, and the limiting post is slidably connected within the sliding groove.

[0014] In conjunction with the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein the chair back is hinged to the base via a pivot located above the sliding shaft.

[0015] In conjunction with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the base includes: a base frame portion and a chair back support portion connected to the base frame portion;

[0016] The chair back support is provided with a mounting groove, and the back of the chair back is provided with a protrusion. The rotating shaft is installed in the mounting groove and passes through the protrusion.

[0017] In conjunction with the seventh possible implementation of the first aspect, the present invention provides an eighth possible implementation of the first aspect, wherein the chair back includes: a backrest and a support, the support being connected below the backrest and being throttle-connected to the seat cushion;

[0018] The supporting part and the bracket part together form a lever with the protrusion as the fulcrum.

[0019] In conjunction with the eighth possible implementation of the first aspect, the present invention provides a ninth possible implementation of the first aspect, wherein the backrest support portion is provided with a limiting groove adapted to the bracket portion.

[0020] The embodiments of the present invention bring the following beneficial effects: the seat cushion is slidably connected to the base in the horizontal direction, the backrest is hinged to the base, and the backrest and seat cushion are connected by transmission. The adjustment device is installed on the base. The seat cushion moves relative to the base by adjusting the adjustment device. During the adjustment of the backrest tilt angle, the seat cushion slides in the horizontal direction, and the center of gravity of the seat does not change, so it does not affect the riding comfort.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a child safety seat provided in an embodiment of the present invention;

[0024] Figure 2 A cross-sectional view of a child safety seat in an upright position as provided in an embodiment of the present invention. Figure 1 ;

[0025] Figure 3 A cross-sectional view of a child safety seat in an upright position as provided in an embodiment of the present invention. Figure 2 ;

[0026] Figure 4 A cross-sectional view of a child safety seat in a tilted state, provided in an embodiment of the present invention;

[0027] Figure 5 A cross-sectional view of the base, seat cushion, and knob of a safety seat provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the base, seat cushion, and knob of a safety seat provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the backrest and pivot of a safety seat provided in an embodiment of the present invention.

[0030] Icons: 100 - Base; 101 - Limiting post; 110 - Base frame; 120 - Backrest support; 121 - Mounting slot; 122 - Limiting slot; 200 - Seat cushion; 201 - Slide rail; 202 - Slide groove; 300 - Backrest; 301 - Protrusion; 310 - Backrest; 320 - Support; 400 - Adjustment device; 410 - Positioning block; 420 - Threaded rod; 430 - Knob; 500 - Slide shaft; 600 - Rotating shaft. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities in the International System of Units (SI), or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] like Figure 1 and Figure 2 As shown, the safety seat provided in this embodiment of the invention includes: a base 100, a seat cushion 200, a backrest 300, and an adjustment device 400; the seat cushion 200 is slidably connected to the base 100 in a horizontal direction; the backrest 300 is hinged to the base 100, and the backrest 300 is convexly connected to the seat cushion 200; the adjustment device 400 is installed on the base 100, and the adjustment device 400 is used to adjust the movement of the seat cushion 200 relative to the base 100.

[0035] During the adjustment of the backrest angle 300, the adjusting device 400 drives the seat cushion 200 to move horizontally, thereby causing the seat cushion 200 to rotate relative to the base 100, thus achieving the adjustment of the backrest angle 300. During this process, the center of gravity of the car seat does not change, therefore it does not affect seating comfort, nor does it affect the child's sitting comfort or sleep.

[0036] It should be noted that when in use, the child safety seat is fixed to the car seat via mounting points, which are fixed relative to the base 100. When adjusting the backrest 300 tilt angle, the seat cushion 200 moves forward relative to the base 100, thereby allowing the backrest 300 to recline backward, thus making the ride more comfortable; when the adjusting device 400 drives the seat cushion 200 to move backward, the backrest 300 gradually adjusts to an upright position.

[0037] In this embodiment of the invention, the adjustment device 400 includes: a positioning block 410 and a threaded rod 420; the positioning block 410 is connected to the base 100, the threaded rod 420 passes through the positioning block 410 and the seat cushion 200, one of the positioning block 410 and the seat cushion 200 is axially fixed with the threaded rod 420, and the other of the positioning block 410 and the seat cushion 200 cooperates with the threaded rod 420.

[0038] In one feasible method, the positioning block 410 is fixed relative to the base 100, and the cushion 200 is axially limited relative to the threaded rod 420 by a retaining ring or nut. By rotating the threaded rod 420, the threaded rod 420 and the cushion 200 can be synchronously translated relative to the base 100.

[0039] In another feasible method, the positioning block 410 is axially limited relative to the threaded rod 420 by a retaining ring or nut. The positioning block 410 is slidably connected to the base 100. By rotating the threaded rod 420, the positioning block 410 and the seat cushion 200 can be synchronously translated relative to the base 100.

[0040] Furthermore, a knob 430 is installed at the end of the threaded rod 420. The knob 430 is circumferentially fixed relative to the threaded rod 420, and the threaded rod 420 can be rotated by turning the knob 430.

[0041] like Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the backrest 300 is connected to a sliding shaft 500, and the seat cushion 200 is provided with a sliding track 201, in which the sliding shaft 500 is slidably engaged.

[0042] When the seat cushion 200 moves horizontally relative to the base 100, the seat cushion 200 pulls the backrest 300 to rotate via the sliding shaft 500 to achieve tilt adjustment. During this process, the sliding shaft 500 slides along the slide rail 201, and the backrest 300 and the seat cushion 200 can achieve smooth linkage.

[0043] Furthermore, the slide 201 extends upward along the plumb line. When the seat cushion 200 moves forward, the slide shaft 500 slides upward along the slide 201; when the seat cushion 200 moves backward, the slide shaft 500 slides downward along the slide 201.

[0044] like Figure 1 , Figure 2 and Figure 5 As shown, a limiting post 101 is installed on the base 100, and the seat cushion 200 is provided with a sliding groove 202, in which the limiting post 101 is slidably connected.

[0045] Specifically, at least one limiting post 101 is provided, preferably two limiting posts 101, and the limiting posts 101 are spaced apart along the sliding direction of the seat cushion 200. When the seat cushion 200 moves to the extreme front position, the limiting post 101 at the front abuts against the front end of the slide groove 202, at which time the backrest 300 reaches the maximum tilt state; when the seat cushion 200 moves to the extreme rear position, the limiting post 101 at the rear abuts against the rear end of the slide groove 202, at which time the backrest 300 reaches the upright state.

[0046] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the backrest 300 is hinged to the base 100 via a pivot 600, which is located above the sliding shaft 500. When the backrest 300 tilts backward, the sliding shaft 500 moves forward relative to the base 100, during which the seat cushion 200 moves forward, increasing the seating area space and thus improving seating comfort.

[0047] Furthermore, the base 100 includes: a base frame 110 and a backrest support 120 connected to the base frame 110; the backrest support 120 is provided with a mounting groove 121, the back of the backrest 300 is provided with a protrusion 301, the pivot 600 is installed in the mounting groove 121 and passes through the protrusion 301, thereby achieving a stable connection between the backrest 300 and the backrest support 120.

[0048] Furthermore, the chair back 300 includes a backrest 310 and a support 320. The support 320 is connected to the lower part of the backrest 310 and is kinetically connected to the seat cushion 200. The backrest 310 and the support 320 form a lever with the protrusion 301 as the fulcrum. When adjusting the angle of the chair back 300, the seat cushion 200 moves back and forth. During this process, the chair back 300 uses the pivot 600 inside the protrusion 301 as the fulcrum. The center of rotation of the chair back 300 is higher than the seat cushion 200 and its position is close to the occupant's waist to obtain the best riding comfort.

[0049] Furthermore, the backrest support 120 is provided with a limiting groove 122 that is adapted to the bracket 320. The front side of the backrest support 120 is provided with two protrusions, and the limiting groove 122 is formed between the two protrusions. In the upright state, the bracket 320 is embedded in the limiting groove 122, thereby improving the stability of the backrest 300 relative to the base 100 in the upright state.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A child safety seat, characterized in that, include: Base (100), seat cushion (200), backrest (300) and adjustment device (400); The seat cushion (200) is slidably connected to the base (100) in the horizontal direction; The backrest (300) is hinged to the base (100), and the backrest (300) is kinetically connected to the seat cushion (200); The adjusting device (400) is mounted on the base (100), and the adjusting device (400) is used to adjust the movement of the seat cushion (200) relative to the base (100); The bottom of the chair back (300) is connected to a sliding shaft (500), and the seat cushion (200) is provided with a slide rail (201). The sliding shaft (500) is slidably engaged in the slide rail (201). The slide (201) extends from bottom to top along the plumb line; The chair back (300) is hinged to the base (100) via a pivot (600), which is located above the sliding shaft (500). The base (100) includes: a base frame (110) and a backrest support (120) connected to the base frame (110); the backrest support (120) is provided with a mounting groove (121), the back of the backrest (300) is provided with a protrusion (301), the pivot (600) is installed in the mounting groove (121), and the pivot (600) passes through the protrusion (301).

2. The safety seat according to claim 1, characterized in that, The adjusting device (400) includes: a positioning block (410) and a threaded rod (420). The positioning block (410) is connected to the base (100), the threaded rod (420) passes through the positioning block (410) and the cushion (200), one of the positioning block (410) and the cushion (200) is axially fixed with the threaded rod (420), and the other of the positioning block (410) and the cushion (200) cooperates with the threaded rod (420).

3. The safety seat according to claim 2, characterized in that, A knob (430) is installed at the end of the threaded rod (420).

4. The safety seat according to claim 1, characterized in that, The base (100) is equipped with a limiting post (101), and the cushion (200) is provided with a sliding groove (202). The limiting post (101) is slidably connected in the sliding groove (202).

5. The safety seat according to claim 1, characterized in that, The chair back (300) includes a backrest (310) and a support (320), the support (320) being connected below the backrest (310) and being throttle-connected to the seat cushion (200); The support portion (310) and the bracket portion (320) together form a lever with the protrusion (301) as the fulcrum.

6. The safety seat according to claim 5, characterized in that, The backrest support (120) is provided with a limiting groove (122) that is adapted to the bracket (320).

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