CN106541862B

CN106541862B - Adjustable child seat

Info

Publication number: CN106541862B
Application number: CN201610948336.XA
Authority: CN
Inventors: 余浪
Original assignee: Children Supplies Co Ltd Is Amused In Suzhou
Current assignee: Nantong Tangrun Machinery Co., Ltd
Priority date: 2016-10-26
Filing date: 2016-10-26
Publication date: 2020-01-07
Anticipated expiration: 2036-10-26
Also published as: CN106541862A

Abstract

The invention discloses an adjustable child seat which comprises a seat, a chair back and a headrest, wherein the seat is connected with the chair back through a rotating device, the rotating device comprises a first sleeve pipe horizontally and fixedly arranged on the chair seat, a second sleeve pipe horizontally and fixedly arranged on the chair back and a positioning mechanism, the right end of the first sleeve is provided with an annular positioning groove, the positioning groove is uniformly provided with a plurality of through holes which penetrate to the left end of the first sleeve along the annular direction, the left end of the second sleeve is rotatably connected in the positioning groove and is uniformly provided with a plurality of first convex teeth along the circumferential direction, positioning mechanism includes a plurality of tension module, and every tension module is including wearing to establish pull rod in the through-hole, connection are in the second dogtooth and the reset spring of the right-hand member of pull rod, the second dogtooth with first dogtooth interval sets up. The invention has at least the following advantages: simple structure, flexible operation and better adjustment of the angle between the chair seat and the chair back.

Description

Adjustable child seat

Technical Field

The invention relates to the technical field of automobile seats, in particular to an adjustable child seat.

Background

With the continuous improvement of living standard of people, automobiles become more and more transportation means for people to live on when going out, and the safety problem of family children when taking automobiles is always a very important problem for people. The car does not have a proper child safety belt, so that a child can easily fall asleep when taking the car, and a safety accident can be easily caused, so that a child seat which can be installed during the car running is urgently needed to guarantee the car taking safety of the child.

Many kinds of automobile child seats appear in the market at present, but most of the automobile child seats are large in size and are not easy to mount. Meanwhile, the operation process is complex, and the angle between the seat and the chair back can not be well adjusted to adapt to children with different body types.

In view of the above-mentioned drawbacks, the present designer actively makes research and innovation to create an adjustable child seat, so that the adjustable child seat has a higher utilization value in vehicle traveling.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide an adjustable child seat to solve the problems that the installation and operation are complex and the angle between a seat and a backrest cannot be well adjusted in the prior art.

The invention relates to an adjustable child seat, which comprises a seat, a seat back and a headrest capable of adjusting height up and down, wherein the seat is connected with the seat back through a rotating device to form the integral adjustable child seat, the rotating device comprises a first sleeve pipe horizontally and fixedly arranged on the seat, a second sleeve pipe horizontally and fixedly arranged on the seat back and a positioning mechanism, the right end of the first sleeve pipe is provided with a positioning groove, the positioning groove is uniformly provided with a plurality of through holes penetrating to the left end of the first sleeve pipe along the circumferential direction, the left end of the second sleeve pipe is rotatably connected in the positioning groove and is uniformly provided with a plurality of first convex teeth along the circumferential direction, the positioning mechanism comprises a plurality of stretching assemblies, each stretching assembly comprises a pull rod penetrating in the through hole, a second convex tooth connected at the right end of the pull rod and a return spring, under the elastic force action of the return spring, the second convex teeth are accommodated in the positioning grooves and are arranged at intervals with the first convex teeth so as to lock the first convex teeth, and under the action of external force, the second convex teeth retract into the through holes by overcoming the acting force of the return spring so as to release the first convex teeth.

Further, rotary device still includes locking mechanical system, locking mechanical system includes spacing hole and spacing axle, spacing hole sets up on the first dogtooth and with the inside wall of first dogtooth link up, the setting that spacing axle extends along left right direction is in inside first sheathed tube, its right-hand member is equipped with rather than the vertically right extension axle, under the elastic force effect, the right side extends the axle and inserts in the spacing hole, under the exogenic action, the right side extends the axle and overcomes radial elastic force effect breaks away from spacing hole.

Furthermore, the rotating device further comprises an adjusting mechanism, the adjusting mechanism comprises an end cover, an annular connecting groove is formed in the right end face of the end cover, and the left end of the pull rod is connected into the connecting groove.

Furthermore, the left end of the limit shaft is provided with a left extension shaft which is in the same direction as the right extension shaft and is parallel to the right extension shaft, the end face, far away from the limit shaft, of the left extension shaft is arranged to be an inclined plane, and the left extension shaft is connected with the end cover.

Furthermore, be provided with on the end cover with the left side extends the subassembly that pushes down of axle adaptation, to spacing axle provides external force.

Furthermore, the inner wall of the first sleeve is uniformly provided with a fixing device used for fixing the limiting shaft along the circumferential direction, the fixing device comprises a fixing spring, one end of the fixing spring is connected to the inner wall of the first sleeve, and the other end of the fixing spring is connected to a fixing block matched with the limiting shaft.

Furthermore, the reset spring is sleeved on the pull rod, the right end of the reset spring is connected with the second convex tooth, and the left end of the reset spring is connected with the first sleeve.

Further, the number of the first convex teeth and the second convex teeth is 5-7.

Further, a rotating shaft matched with the second sleeve is rotatably connected in the second sleeve.

By the scheme, the invention at least has the following advantages:

1. through being provided with first dogtooth and second dogtooth, first dogtooth and second dogtooth interval set up, overcome reset spring's effort and realize the release and the locking of first dogtooth and second dogtooth under reset spring's self elasticity effect through the second dogtooth, realize convenient regulation of seat angle.

2. Through being provided with positioning mechanism, positioning mechanism includes a plurality of tension module, and every tension module includes pull rod, second dogtooth and reset spring, and the pull rod plays tensile and the effect of location at second dogtooth and reset spring's motion in-process, guarantees that the operation of whole device is steady reliable.

3. Through being provided with locking mechanical system, locking mechanical system includes spacing hole and spacing axle, and spacing axle both ends are provided with the extension axle, through pushing down the subassembly and fixing the fixing device cooperation of spacing axle can realize locking and release to first dogtooth, has further guaranteed the security of seat in accommodation process.

5. The chair has the advantages of simple structure and flexible operation, and can better adjust the angle between the chair seat and the chair back.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the construction of an adjustable child seat according to the present invention;

FIG. 2 is a schematic view of the structure of the rotating device of the present invention;

FIG. 3 is a side view of the first bushing of the present invention;

fig. 4 is a front view of a spacing shaft of the present invention.

In the above drawings: 1. a chair seat; 2. a chair back; 3. a first sleeve; 4. a through hole; 5. a second sleeve; 6. an end cap; 7. a rotating shaft; 8. a positioning groove; 9. a first lobe; 10. a limiting hole; 11. a second lobe; 12. a pull rod; 13. a return spring; 14. a limiting shaft; 15. a fixing device; 16. a connecting groove; 17. a right extension shaft; 18. a left extension shaft.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, as shown in the drawings, the adjustable child seat of the present invention comprises a seat 1, a backrest 2 and a headrest with adjustable height, wherein the seat 1 is connected with the backrest 2 through a rotating device to form an integrated adjustable child seat. Rotating device includes that horizontal fixed mounting is in first sleeve 3, horizontal fixed mounting on the seat support 1 are in second sleeve 5 and positioning mechanism on the back of the chair 2, the right-hand member of first sleeve 3 is provided with annular positioning groove 8, positioning groove 8 evenly is provided with along the hoop and link up to a plurality of through-holes 4 of the left end of first sleeve 3. The left end of the second sleeve 5 is rotatably connected in the annular positioning groove 8 and is uniformly provided with a plurality of first convex teeth 9 along the annular direction, in the invention, the number of the first convex teeth is preferably 6, and the second sleeve 5 is rotatably connected with a rotating shaft 7 matched with the second sleeve. The positioning mechanism comprises a plurality of stretching assemblies, and each stretching assembly comprises a pull rod 12 arranged in the through hole 4 in a penetrating mode, a second convex tooth 11 connected to the right end of the pull rod 12 and a return spring 13. In the invention, the number of the second convex teeth 11 is preferably 6, the return spring 13 is sleeved on the pull rod 12, the right end of the return spring is connected with the second convex teeth 11, and the left end of the return spring is connected with the first sleeve 3. Under the action of the elastic force of the return spring 13, the second convex teeth 11 are accommodated in the annular positioning groove 8 and are arranged at intervals with the first convex teeth 9 to lock the first convex teeth 9, and under the action of external force, the second convex teeth 11 overcome the acting force of the return spring 13 and retract into the through holes 4 to release the first convex teeth 9.

The rotating device further comprises an adjusting mechanism, the adjusting mechanism comprises an end cover 6, an annular connecting groove 16 is formed in the right end face of the end cover 6, and the left end of the pull rod 12 is connected into the connecting groove 16.

The rotating device further comprises a locking mechanism, and the locking mechanism comprises a limiting hole 10 and a limiting shaft 14. The limiting hole 10 is formed in the first convex tooth 9 and communicated with the inner side wall of the first convex tooth 9, and the limiting shaft 14 extends in the left-right direction and is arranged inside the first sleeve 3. The right end of the limiting device is provided with a right extending shaft 17 perpendicular to the right extending shaft, under the action of elastic force, the right extending shaft 17 is inserted into the limiting hole 10, and under the action of external force, the right extending shaft 17 overcomes the action of radial elastic force to be separated from the limiting hole 10. The left end of the limit shaft 14 is provided with a left extension shaft 18 which is in the same direction as the right extension shaft 17 and is parallel to the right extension shaft, the end surface of the left extension shaft 18 far away from the limit shaft 14 is provided with an inclined surface, and the left extension shaft 18 is connected with the end cover 6. The end cover 6 is provided with a pressing component matched with the left extension shaft 18, the pressing component comprises a rotating screw, and the rotating screw indirectly applies pressure to the limiting shaft 14 by applying certain pressure to the inclined plane end of the left extension shaft 18 to realize that the limiting shaft 14 is separated from the limiting hole 10.

The inner wall of the first sleeve 3 is uniformly provided with a fixing device 15 used for fixing the limiting shaft along the circumferential direction, the fixing device 15 comprises a fixing spring, one end of the fixing spring is connected to the inner wall of the first sleeve 3, and the other end of the fixing spring is connected to the fixing block matched with the limiting shaft 14.

The working principle of the invention is as follows:

(1) the seat is in a locking state in a normal state, and the right extension shaft 17 on the limiting shaft 14 is separated from the limiting hole 10 by adjusting the rotating screw;

(2) the seat is adjusted to a proper angle by applying a leftward axial force to the stretching assembly to relatively release the second convex tooth 11 and the first convex tooth 9;

(3) the left axial force on the stretching assembly is released, the second convex tooth 11 automatically resets under the action of a return spring 13, and the first convex tooth 9 is locked;

(4) and the rotary screw is adjusted, and the right extension shaft 17 on the limit shaft 14 extends into the limit hole 10 under the action of the fixed spring, so that the first convex teeth 9 are further locked, and the adjustment work is completed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an adjustable children's seat, includes seat support, the back of the chair and the headrest of height-adjusting from top to bottom, the seat support passes through rotary device to be connected the back of the chair is in order to constitute holistic adjustable children's seat, its characterized in that: the rotating device comprises a first sleeve, a second sleeve and a positioning mechanism, wherein the first sleeve is horizontally and fixedly arranged on the chair seat, the second sleeve is horizontally and fixedly arranged on the chair back, the right end of the first sleeve is provided with an annular positioning groove, the positioning groove is uniformly provided with a plurality of through holes penetrating to the left end of the first sleeve along the annular direction, the left end of the second sleeve is rotatably connected in the positioning groove and is uniformly provided with a plurality of first convex teeth along the annular direction, the positioning mechanism comprises a plurality of stretching assemblies, each stretching assembly comprises a pull rod penetrating in the through hole, a second convex tooth connected at the right end of the pull rod and a reset spring, under the elastic action of the reset spring, the second convex tooth is accommodated in the positioning groove and is arranged at intervals with the first convex teeth to lock the first convex teeth, under the external force action, the second convex tooth overcomes the acting force of the reset spring retracts into the through hole, to release the first lobe; rotating device still includes locking mechanical system, locking mechanical system includes spacing hole and spacing axle, spacing hole sets up on the first dogtooth and with the inside wall of first dogtooth link up, the setting that the left right direction of spacing axle extension was followed is in first sheathed tube inside, its right-hand member are equipped with rather than the vertically right extension axle, under the elastic action, the right side is extended the axle and is inserted in the spacing hole, under the exogenic action, the right side is extended the axle and is overcome radial elastic action and break away from spacing hole, first sleeve inside wall evenly is provided with along the circumferencial direction and is used for fixing the fixing device of spacing axle, fixing device includes that one end is connected on the first sheathed tube inner wall, the other end connect with fixed spring on the fixed block of spacing axle looks adaptation.

2. An adjustable child seat according to claim 1, wherein: the rotating device further comprises an adjusting mechanism, the adjusting mechanism comprises an end cover, an annular connecting groove is formed in the right end face of the end cover, and the left end of the pull rod is connected into the connecting groove.

3. An adjustable child seat according to claim 2, wherein: the left end of the limiting shaft is provided with a left extending shaft which is in the same direction as the right extending shaft and is parallel to the right extending shaft, the end face, far away from the limiting shaft, of the left extending shaft is arranged to be an inclined plane, and the left extending shaft is connected with the end cover.

4. An adjustable child seat according to claim 3, wherein: the end cover is provided with a pressing component matched with the left extension shaft, and external force is provided for the limiting shaft.

5. An adjustable child seat according to claim 1, wherein: the reset spring is sleeved on the pull rod, the right end of the reset spring is connected with the second convex tooth, and the left end of the reset spring is connected with the first sleeve.

6. An adjustable child seat according to claim 1, wherein: the number of the first convex teeth and the number of the second convex teeth are 5-7.

7. An adjustable child seat according to claim 1, wherein: and a rotating shaft matched with the second sleeve is rotatably connected in the second sleeve.