CN204123988U

CN204123988U - A kind of Child safety seat headrest adjustment device

Info

Publication number: CN204123988U
Application number: CN201420537120.0U
Authority: CN
Inventors: 张文渊
Original assignee: SHANGHAI YIYAYIYA INDUSTRIAL Co Ltd
Current assignee: SHANGHAI YIYAYIYA INDUSTRIAL Co Ltd
Priority date: 2014-09-18
Filing date: 2014-09-18
Publication date: 2015-01-28
Anticipated expiration: 2024-09-18

Abstract

The utility model relates to a kind of Child safety seat headrest adjustment device, comprises adjustment seat, head rest, the chair back, fixed block, and described head rest inside face is with a bar shaped guide groove and this guide groove inside edge is uniformly distributed some lower fixed teeth; The guide groove aligned in position of a knock hole and this knock hole and head rest inside face is offered on described chair back top; Snap in an adjustment seat at the inner ecto-entad of guide groove, this adjustment seat outer edge is with some upper fixed teeth and arrange permanent seat screw thread at the adjustment seat back side; The permanent seat screw thread ecto-entad of described adjustment seat is successively through guide groove, knock hole and the fixed block fixing and locking of its threaded portion and chair back outside.The utility model beneficial effect is: be convenient to regulate, head rest to slide up and down motion relative to the chair back, thus greatly adds the adjustable degree of child safety seat at head rest position, is beneficial to expansion field of application.

Description

A kind of Child safety seat headrest adjustment device

Technical field

The utility model relates to a kind of child safety seat, particularly relates to a kind of Child safety seat headrest adjustment device.

Background technology

Car belt generally includes shoulder belt and lap belt, and shoulder belt and lap belt are fixed on the anchoring structure of automobile, so as to suppress and protection occupant because collide the injury that causes or automobile stop suddenly the impulse force that produces.But the safety strap due to automobile is not suitable for small children, and small children also cannot bear the pressure that car belt bestows; So, must to halt relevant regulation to automotive seat being installed child safety seat.Child safety seat is a kind of designed for children aiming at different weight or age bracket, child is strapped in safety seat, effectively can improve the seat of children riding safety, at auto against or when slowing down suddenly, can reduce and the stamping press of children and the health of limiting child are moved, thus alleviate the injury to them.But this case is it is important to note that in view of the structure of existing safety seat, still comparatively large to the stamping press of children, the needs of this wherein correct relying part position possess certain regulative mode, to reduce injury.Therefore, for above aspect, need reasonably to improve prior art.

Utility model content

For above defect, the utility model provide a kind of easy to use, be convenient to regulate, be conducive to improving the Child safety seat headrest adjustment device of degree of safety, to solve many deficiencies of prior art.

For achieving the above object, the utility model is by the following technical solutions:

A kind of Child safety seat headrest adjustment device, comprise adjustment seat, head rest, the chair back, fixed block, described head rest inside face is with a bar shaped guide groove and this guide groove inside edge is uniformly distributed some lower fixed teeth;

The guide groove aligned in position of a knock hole and this knock hole and head rest inside face is offered on described chair back top;

Meanwhile, snap in an adjustment seat at the inner ecto-entad of guide groove, this adjustment seat outer edge is with some upper fixed teeth and arrange permanent seat screw thread at the adjustment seat back side;

The permanent seat screw thread ecto-entad of described adjustment seat is successively through guide groove, knock hole and the fixed block fixing and locking of its threaded portion and chair back outside.

The upper fixed teeth of described adjustment seat outer edge engages with the lower fixed teeth of guide groove inside edge; The fixed block screw-threaded coupling of permanent seat screw thread and fixed block center.

The beneficial effect of Child safety seat headrest adjustment device described in the utility model is:

(1) be convenient to regulate, finger rotates fixed block, and fixed block screw thread rotates according to permanent seat screw thread, thus fixed teeth and guide groove are departed from, and head rest slides up and down according to guide groove and adjustment seat;

(2) when fixing, adjustment seat is locked (permanent seat screw thread and fixed block screw-threaded coupling) through head rest, the chair back and fixed block, the tooth of upper fixed teeth and lower fixed teeth is to tooth locking, head rest to slide up and down motion relative to the chair back, thus greatly add the adjustable degree of child safety seat at head rest position, be beneficial to expansion field of application.

Accompanying drawing explanation

With reference to the accompanying drawings the utility model is described in further detail below.

Fig. 1 is the decomposition texture schematic diagram of Child safety seat headrest adjustment device described in the utility model embodiment.

In figure:

1, adjustment seat; 2, head rest; 3, the chair back; 4, fixed block;

11, permanent seat screw thread; 12, upper fixed teeth; 21, lower fixed teeth; 22, guide groove; 31, knock hole; 41, fixed block screw thread.

Detailed description of the invention

As shown in Figure 1, Child safety seat headrest adjustment device described in the utility model embodiment, comprise adjustment seat 1, head rest 2, the chair back 3, fixed block 4, described head rest 2 inside face is with a bar shaped guide groove 22 and this guide groove 22 inside edge is uniformly distributed some lower fixed teeth 21, a knock hole 31 is offered and guide groove 22 aligned in position of this knock hole 31 and head rest 2 inside face in the described chair back 3 top, simultaneously, an adjustment seat 1 is snapped at the inner ecto-entad of guide groove 22, this adjustment seat 1 outer edge is with some upper fixed teeth 12 and arrange permanent seat screw thread 11 at adjustment seat 1 back side,

Correspondingly, permanent seat screw thread 11 ecto-entad of described adjustment seat 1 is successively through guide groove 22, knock hole 31 and fixed block 4 fixing and locking of its threaded portion and the chair back 3 outside, and the fixed block screw thread 41 of this permanent seat screw thread 11 and fixed block 4 center is locked.

During use, finger rotates fixed block 4, and fixed block screw thread 41 rotates according to permanent seat screw thread 11, thus fixed teeth 12 and guide groove 22 are departed from, and head rest 2 slides up and down according to guide groove 22 and adjustment seat 1; Time fixing, adjustment seat 1 is locked with fixed block 4 (permanent seat screw thread 11 and fixed block screw thread 41 are locked) through head rest 2, the chair back 3, the tooth of upper fixed teeth 12 and lower fixed teeth 21 is to tooth locking, head rest 2 to slide up and down motion relative to the chair back 3, thus greatly add the adjustable degree of child safety seat at head rest position, be beneficial to expansion field of application.

The above-mentioned description to embodiment can understand and apply this case technology for the ease of those skilled in the art, person skilled in the art obviously can make various amendment to these examples easily, and General Principle described herein is applied in other embodiment and need not through performing creative labour.Therefore, this case is not limited to above embodiment, and those skilled in the art is according to the announcement of this case, and the improvement made for this case and amendment all should in the protection domains of this case.

Claims

1. a Child safety seat headrest adjustment device, comprises adjustment seat (1), head rest (2), the chair back (3), fixed block (4), it is characterized in that:

Described head rest (2) inside face is with a bar shaped guide groove (22) and this guide groove (22) inside edge is uniformly distributed some lower fixed teeth (21);

A knock hole (31) is offered and guide groove (22) aligned in position of this knock hole (31) and head rest (2) inside face in the described chair back (3) top;

Meanwhile, snap in an adjustment seat (1) at guide groove (22) inner ecto-entad, this adjustment seat (1) outer edge is with some upper fixed teeth (12) and arrange permanent seat screw thread (11) at adjustment seat (1) back side;

Permanent seat screw thread (11) ecto-entad of described adjustment seat (1) is successively through fixed block (4) fixing and locking of guide groove (22), knock hole (31) and its threaded portion and the chair back (3) outside.

2. Child safety seat headrest adjustment device according to claim 1, is characterized in that: the upper fixed teeth (12) of described adjustment seat (1) outer edge engages with the lower fixed teeth (21) of guide groove (22) inside edge.

3. Child safety seat headrest adjustment device according to claim 1, is characterized in that: described permanent seat screw thread (11) is locked with the fixed block screw thread (41) of fixed block (4) center.