Child safety seat with adjustable backrest

Abstract

The child safety seat with the adjustable backrest comprises a seat body, a backrest is assembled on the rear side of the seat body in a hinged mode, adjusting assemblies are assembled at the hinged positions of the seat body and the left side and the right side of the backrest respectively, a cushion and a back cushion are fixedly assembled at the upper end of the seat body and the inner side of the backrest respectively, and a safety belt is fixedly assembled on the backrest. The adjusting assembly comprises a fixing disc and an adjusting disc, the fixing disc is fixedly assembled at the hinged position of the chair back, a sliding groove is formed in the hinged position of the seat, the adjusting disc is assembled on the inner side of the sliding groove in a left-right sliding mode, a plurality of triangular blocks are fixedly arranged at the opposite ends of the adjusting disc and the fixing disc, and the triangular blocks on the adjusting disc and the fixing disc are symmetrically distributed along the circumference of the axis. Screw rods are fixedly assembled at the ends, close to the adjusting disc, of the rotary knobs, and the screw rods are rotationally connected with the middle of the adjusting disc in a threaded mode.

Description

Technical Field

[0001] This utility model belongs to the field of child safety seat technology, specifically relating to a child safety seat with an adjustable backrest. Background Technology

[0002] In the current child safety seat market, although there are various styles and types of products, many traditional designs still have many shortcomings in terms of backrest adjustment. For example, some child safety seats require users to perform backrest adjustments through complicated operations or with the help of tools, which not only increases the difficulty of operation for users but may also affect the user experience. In addition, some seats have insufficient strength in terms of backrest fixation. Once a child moves in the seat or is involved in an accidental collision, the backrest may shake due to instability, thereby endangering the child's safety. Therefore, a child safety seat with an adjustable backrest is provided to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a child safety seat with an adjustable backrest to address the problems existing in the prior art.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] An adjustable child safety seat includes a seat, a backrest hinged to the rear side of the seat, adjustment components mounted at the left and right hinge points of the seat and the backrest, a seat cushion and a back cushion fixedly mounted on the upper end of the seat and the inner side of the backrest respectively, and a seat belt fixedly mounted on the backrest.

[0006] The adjustment assembly includes a fixed plate and an adjustment plate. The fixed plate is fixedly mounted at the hinge of the chair back. A sliding groove is provided at the hinge of the seat. The adjustment plate is slidably mounted on the inner side of the sliding groove. Several triangular blocks are fixedly provided at opposite ends of the adjustment plate and the fixed plate. The triangular blocks on the adjustment plate and the fixed plate are symmetrically distributed around the circumference along the axis. Knobs are rotatably mounted on both sides of the seat. A screw is fixedly mounted at the end of the knob near the adjustment plate. The screw is threadedly rotatably connected to the center of the adjustment plate.

[0007] Preferably, the cross-sectional shape of the triangular blocks is a right triangle, and the right-angled sides of the triangular blocks on the adjusting plate and the fixed plate are close to each other.

[0008] Preferably, a plurality of slide bars are fixedly assembled on the inner side of the slide groove, and a plurality of strip grooves are opened on the outer side of the adjusting plate, the strip grooves slidingly matching the slide bars.

[0009] Preferably, a drive gear is fixedly mounted on one side of the screw, and a rotating shaft is rotatably mounted on the rear side of the seat. Transmission gears are fixedly mounted on both ends of the rotating shaft, and the drive gear meshes with the transmission gear.

[0010] Preferably, a U-shaped protective pad is fixedly fitted on the upper side of the chair back.

[0011] Advantages of this utility model:

[0012] 1. The angle of the chair back can be easily adjusted by rotating the knob. Users do not need complicated operations or tools, making the adjustment process simple and quick. In particular, through the design of the pivot and transmission gear, users only need to turn the knob on one side to adjust the adjustment dials on both sides at the same time, further improving the convenience of adjustment.

[0013] 2. The adjustment components adopt a triangular block design. These triangular blocks have right-angled sides that are close to each other. When the chair back rotates forward, the right-angled surfaces between the corresponding left and right triangular blocks will touch, thus effectively preventing the chair back from rotating further. This design not only improves the strength of the fixation, but also ensures the stability of the chair back after adjustment, providing a safer use environment for children. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0015] Figure 1 This is a structural schematic diagram of a child safety seat with an adjustable backrest according to the present invention;

[0016] Figure 2 This is an exploded cross-sectional view of the adjustable backrest child safety seat of this utility model.

[0017] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0018] The symbols for the main components are explained below:

[0019] Seat 1, backrest 11, seat cushion 12, backrest cushion 121, seat belt 122, fixing plate 13, adjusting plate 131, slide rail 132, triangular block 133, knob 134, screw 135, slide bar 14, strip groove 141, drive gear 15, rotating shaft 151, transmission gear 152, U-shaped protective pad 16. Detailed Implementation

[0020] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1As shown, the present invention provides a child safety seat with an adjustable backrest, including a seat 1, a backrest 11 hinged to the rear side of the seat 1, adjustment components at the left and right hinge points of the seat 1 and the backrest 11, a seat cushion 12 and a back cushion 121 fixedly mounted on the upper end of the seat 1 and the inner side of the backrest 11 respectively, a seat belt 122 fixedly mounted on the backrest 11, and a U-shaped protective pad 16 fixedly mounted on the upper side of the backrest 11.

[0022] like Figure 2-3 As shown, the adjustment assembly includes a fixed plate 13 and an adjustment plate 131. The fixed plate 13 is fixedly mounted at the hinge of the seat back 11. A slide groove 132 is provided at the hinge of the seat 1. The adjustment plate 131 is slidably mounted on the inner side of the slide groove 132. Several slide bars 14 are fixedly mounted on the inner side of the slide groove 132. Several strip grooves 141 are provided on the outer side of the adjustment plate 131. The strip grooves 141 and slide bars 14 slide and match. Several triangular blocks 133 are fixedly provided on opposite ends of the adjustment plate 131 and the fixed plate 13. The several triangular blocks 133 on the adjustment plate 131 and the fixed plate 13 are all along the... The axis is symmetrically distributed around the circumference. Several triangular blocks 133 have right-angled triangle cross-sections. The right-angled sides of the triangular blocks 133 on the adjustment plate 131 and the fixed plate 13 are close to each other. When the backrest 11 rotates forward, the right-angled surfaces between the corresponding left and right triangular blocks 133 will abut to prevent the backrest 11 from rotating. The right-angled surfaces of the triangular blocks 133 limit the fixing strength. The left and right sides of the seat 1 are equipped with knobs 134. A screw 135 is fixedly installed on one end of the knob 134 near the adjustment plate 131. The screw 135 is threadedly connected to the middle of the adjustment plate 131.

[0023] A drive gear 15 is fixedly mounted on one side of the screw 135, and a rotating shaft 151 is rotatably mounted on the rear side of the seat 1. Transmission gears 152 are fixedly mounted on both ends of the rotating shaft 151. The drive gear 15 meshes with the transmission gear 152. Through the transmission of the rotating shaft 151, the user can rotate the knob 134 on one side to adjust the adjustment discs 131 on both sides.

[0024] Adjustment steps: When adjusting the backrest 11 of this child safety seat, first turn the knob 134 to drive the screw 135 to rotate, so that the adjusting plate 131 moves away from the fixed plate 13, thereby making the two sets of triangular blocks 133 move away from each other. This will release the restriction on the backrest 11. The user can rotate the backrest 11 to adjust its angle. After the adjustment is completed, the user turns the knob 134 in the opposite direction to make the adjusting plate 131 move closer to the fixed plate 13. Relying on the inclined surface of the triangular block 133, the fixed plate 13 and the adjusting plate 131 can be quickly engaged, thereby limiting the backrest 11. This child safety seat is easy to adjust and simple to operate, making it very user-friendly.

[0025] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A child safety seat with an adjustable backrest, comprising a seat, characterized in that: The seat is hinged to the rear side and a backrest is mounted on it. Adjustment components are mounted at the hinge points on both the left and right sides of the seat and the backrest. A seat cushion and a back cushion are fixedly mounted on the upper part of the seat and the inner side of the backrest, respectively. A seat belt is fixedly mounted on the backrest. The adjustment assembly includes a fixed plate and an adjustment plate. The fixed plate is fixedly mounted at the hinge of the chair back. A sliding groove is provided at the hinge of the seat. The adjustment plate is slidably mounted on the inner side of the sliding groove. Several triangular blocks are fixedly provided at opposite ends of the adjustment plate and the fixed plate. The triangular blocks on the adjustment plate and the fixed plate are symmetrically distributed around the circumference along the axis. Knobs are rotatably mounted on both sides of the seat. A screw is fixedly mounted at the end of the knob near the adjustment plate. The screw is threadedly rotatably connected to the center of the adjustment plate.

2. The child safety seat with an adjustable backrest according to claim 1, characterized in that: The cross-sectional shape of several of the triangular blocks is a right triangle, and the right-angled sides of the triangular blocks on the adjusting plate and the fixed plate are close to each other.

3. A child safety seat with an adjustable backrest according to claim 1, characterized in that: Several slide bars are fixedly assembled on the inner side of the slide groove, and several strip grooves are opened on the outer side of the adjustment plate. The strip grooves slide and match the slide bars.

4. A child safety seat with an adjustable backrest according to claim 1, characterized in that: A drive gear is fixedly mounted on one side of the screw, and a rotating shaft is rotatably mounted on the rear side of the seat. Transmission gears are fixedly mounted on both ends of the rotating shaft, and the drive gear meshes with the transmission gear.

5. A child safety seat with an adjustable backrest according to claim 1, characterized in that: A U-shaped protective pad is fixedly fitted to the upper side of the chair back.

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