CN214728338U

CN214728338U - Chair back angle adjusting mechanism of child safety seat

Info

Publication number: CN214728338U
Application number: CN202120510963.1U
Authority: CN
Inventors: 崔东辉; 林艳; 张磊
Original assignee: NINGBO GLOBAL KIDS BABY PRODUCTS CO Ltd
Current assignee: NINGBO GLOBAL KIDS BABY PRODUCTS CO Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-16
Anticipated expiration: 2031-03-10

Abstract

The utility model relates to a children's safety seat technical field discloses a children's safety seat's back of the chair angle modulation mechanism, including: the base is provided with a sliding groove and a plurality of locking grooves; the chair back is arranged on the base, and a sliding block is arranged on the chair back; the sliding block is slidably arranged in the sliding groove so as to adjust the angle of the chair back; the locking assembly is arranged between the base and the chair back and comprises an adjusting handle and a locking piece used for locking the chair back on the base, the locking piece is movably arranged in the locking groove, and the adjusting handle can drive the locking piece to be separated from the locking groove so as to unlock the chair back from the base. The utility model has the advantages that the chair back of the child safety seat can be adjusted more smoothly and stably by arranging the sliding block and the sliding groove, the metal guide rail is omitted, and the cost is low; and the locking assembly is arranged, so that the stability and safety of the chair back adjustment are ensured.

Description

Chair back angle adjusting mechanism of child safety seat

Technical Field

The utility model relates to a children's safety seat technical field especially relates to a children's safety seat's back of the chair angle adjustment mechanism.

Background

The child safety seat provides a comfortable and safe sitting environment for the child by adjusting the inclination angle of the seat back, so that the child can be in a sitting state and can be in a lying position.

The existing chair back angle adjusting device of the automobile child safety seat comprises a chair back and a base arranged on the chair back, wherein a metal sheet guide rail is arranged on the chair back, and the chair back can slide along a sliding groove of the metal sheet guide rail to adjust the inclination angle of the chair back. When the angle is adjusted, the chair back and the base are usually subjected to direct dry friction, a blocking feeling or friction sound is generated, after the chair is used for a long time, the surface coating of the metal piece is easy to wear, the metal piece is easy to embroider, and the service life of the chair is shortened; and the metalwork is generally formed by the fastener connection, leads to the whole weight of product heavier, and the base structure is comparatively complicated, and the cost is higher.

For example, patent "CN 210337395U" discloses a child safety seat with a seat back angle adjustment mechanism, which comprises a seat back and a base, wherein the seat back is mounted on the base and can slide relative to the base to adjust the angle of the seat back; the chair back angle adjusting mechanism comprises a rotating support rotatably mounted on the chair back, a handle connected with the rotating support, a spring connected with the rotating support and enabling the rotating support to tend to rotate, and a positioning shaft arranged on the rotating support, wherein the rotating support rotates under the action of the spring to enable the positioning shaft to enter one pair of positioning grooves in the plurality of pairs of positioning grooves arranged on the base. According to the utility model discloses a, can realize the back of the chair angle modulation, but overall structure is complicated, and the part easily wears and teares, and the back of the chair is adjusted unsmoothly, and the reliability is lower.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model lies in that, a chair back angle adjusting mechanism of child safety seat with simple structure, smooth and easy regulation, high stability and low cost is provided.

The utility model provides a technical scheme that its technical problem adopted is, provides a children's safety seat's back of the chair angle adjustment mechanism, including:

the base is provided with a sliding groove and a plurality of locking grooves;

the chair back is arranged on the base, and a sliding block is arranged on the chair back; the sliding block is slidably arranged in the sliding groove so as to adjust the angle of the chair back;

the locking assembly is arranged between the base and the chair back and comprises an adjusting handle and a locking piece used for locking the chair back on the base, the locking piece is movably arranged in the locking groove, and the adjusting handle can drive the locking piece to be separated from the locking groove so as to unlock the chair back from the base.

Further, the slider includes the guide part and with the spacing portion that the guide part links to each other, the guide part wears to establish in the spout, spacing portion is in the below of spout.

Further, still be equipped with on the base with the holding tank of spout intercommunication, spacing portion sets up in the holding tank.

Further, the slider is a T-shaped block and is detachably connected to the chair back.

Furthermore, the number of the sliding blocks is two or four, and the sliding blocks are symmetrically arranged on the chair back.

Furthermore, the position locking piece is a position locking shaft;

the chair back is provided with a first shaft seat and a second shaft seat, the first shaft seat and the second shaft seat are respectively positioned on two sides of the adjusting handle, and the first shaft seat and the second shaft seat are respectively provided with a guide groove; the locking shaft penetrates through the guide groove and can slide along the guide groove to be locked into or separated from the locking groove.

Furthermore, the adjusting handle comprises a first driving arm and a second driving arm which are arranged at intervals, the first driving arm extends out of a first sliding plate to the second driving arm side, and the second driving arm extends out of a second sliding plate to the first driving arm side;

the chair back is provided with a first guide block and a second guide block, the first guide block is provided with a first groove, the second guide block is provided with a second groove, the first sliding plate is slidably arranged in the first groove, and the second sliding plate is slidably arranged in the second groove.

Furthermore, the first driving arm and the second driving arm are both provided with a driving chute, the locking shaft penetrates through the driving chute, and the adjusting handle drives the locking shaft through the driving chute.

Furthermore, horizontal grooves communicated with the driving inclined grooves are formed in the first driving arm and the second driving arm.

Further, the first shaft seat and/or the second shaft seat and/or the first guide block and/or the second guide block and the chair back are arranged in a split manner or are arranged integrally;

an elastic piece is arranged between the adjusting handle and the chair back and used for resetting the adjusting handle.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

in the utility model, the chair back and the base are respectively provided with the slide block and the slide groove, so that the chair back and the base are connected in a sliding way, compared with the prior art that the dry friction is directly realized by adjusting the gear between the chair back and the base, and a metal sheet guide rail is cancelled, the chair back angle adjusting mechanism can not generate blocking feeling or generate friction sound when being adjusted, the adjustment is smooth and stable, and the cost is low; and the lock groove can not be abraded, the service life of the seat is prolonged, and the stability and the safety of the chair back adjusting mechanism are ensured.

The utility model discloses in, simplify the mechanism of base, and overall structure is simple, reduce manufacturing cost, each part can all be dismantled in this mechanism and connect (the slider can be dismantled with the back of the chair and connect; first axle bed, second axle bed can be dismantled with the back of the chair and connect; first guide block, second guide block can dismantle with the base and connect), is convenient for dismouting and part to change; when the chair is adjusted, the chair back can slide relative to the base only by pulling the adjusting handle, and the operation is simple; through the locking assembly and the elastic piece, the seat is firm in gear adjustment and good in use reliability.

Drawings

FIG. 1 is a schematic view of the overall structure of the chair back angle adjusting mechanism of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the base of the present invention;

FIG. 4 is another view of FIG. 3;

FIG. 5 is a schematic structural view of the locking assembly of the present invention;

fig. 6 is a schematic structural view of the adjusting handle of the present invention;

fig. 7 is a schematic structural diagram of the first guide block and the second guide block of the present invention.

In the figure:

1. a base; 10. a chute; 11. a position locking groove; 12. accommodating grooves;

2. a chair back; 20. a slider; 21. a first shaft seat; 22. a second shaft base; 23. a first guide block; 24. a second guide block; 200. a guide portion; 201. a limiting part; 210. a guide groove; 230. a first groove; 240. a second groove;

3. a capture assembly; 30. adjusting the handle; 31. a position locking member; 300. a first drive arm; 301. a second drive arm; 3000. a first slide plate; 3001. driving the chute; 3002. a horizontal groove; 3010. a second slide plate;

4. an elastic member.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 7, a chair back angle adjusting mechanism of a child safety chair comprises: the device comprises a base 1, wherein a sliding groove 10 and a plurality of position locking grooves 11 are formed in the base 1; the chair back 2 is arranged on the base 1, and a sliding block 20 is arranged on the chair back 2; the sliding block 20 is slidably arranged in the sliding groove 10 to adjust the angle of the chair back 2; the locking assembly 3 is arranged between the base 1 and the chair back 2 and comprises an adjusting handle 30 and a locking piece 31 for locking the chair back 2 on the base 1, the locking piece 31 is movably arranged in the locking groove 11, and the adjusting handle 30 can drive the locking piece 31 to be separated from the locking groove 11 so as to unlock the chair back 2 from the base 1.

In the actual use, only need pulling adjustment handle 30, can break away from locking piece 31 from locking groove 11 to drag back of the chair 2 and slide relative to base 1, because the contact surface of base 1 and back of the chair 2 is the cambered surface, and then realize the regulation of back of the chair 2 angle, this simple structure reduces manufacturing cost.

Preferably, the sliding block 20 includes a guide portion 200 and a limiting portion 201 connected to the guide portion 200, the guide portion 200 is inserted into the sliding slot 11, and the limiting portion 201 is located below the sliding slot 11. That is, the base 1 and the backrest 2 are connected to the slide groove 11 through the slider 20, and the cross-sectional area of the stopper 201 is larger than that of the guide 200, so that the backrest 2 does not separate from the base 1 and slides only along the arc surface of the base 1.

In this embodiment, still be equipped with the holding tank 12 with spout 11 intercommunication on base 1, spacing portion 201 sets up in holding tank 12, and during actual installation promptly, guide part 200 passes holding tank 12 and spout 11 in proper order and is connected with back of the chair 2, and spacing portion 201 is with back of the chair 2 joint on base 1, makes back of the chair 2 not break away from with base 1.

Preferably, slider 20 is the T-shaped piece, and detachably connects on the back of the chair 2, and T type slider 20 simple structure just can restrict back of the chair 2 and break away from base 1, can satisfy back of the chair 2 and adjust the needs, through slider 20 and spout 10, realizes the sliding connection between base 1 and the back of the chair 2, makes this back of the chair angle adjustment mechanism overall structure simple, adjusts steadily, and the practicality is strong.

During the in-service use, the quantity of slider 20 is two or four, is the symmetry and sets up on back of the chair 2, has both guaranteed that base 1 and back of the chair 2 can be connected firmly and the structure stress is balanced, also makes base 1 and back of the chair 2 can follow the contact surface relative slip, and stability is high.

In this embodiment, the locking member 31 is a locking shaft, the seat back 32 is provided with a first shaft seat 21 and a second shaft seat 22, the first shaft seat 21 and the second shaft seat 22 are respectively located at two sides of the adjustment handle 30, and the first shaft seat 21 and the second shaft seat 22 are both provided with guide grooves 210; during installation, the two ends of the locking shaft are respectively inserted into the guide slots 210 and can slide along the guide slots 210 to be locked into or separated from the locking slots 11.

Preferably, the adjustment handle 30 includes a first drive arm 300 and a second drive arm 301 arranged at an interval, the first drive arm 300 extends to the second drive arm 301 to form a first sliding plate 3000, and the second drive arm 301 extends to the first drive arm 300 to form a second sliding plate 3010.

In this embodiment, a first guide block 23 and a second guide block 24 are disposed on the chair back 2, a first groove 230 is disposed on the first guide block 23, a second groove 240 is disposed on the second guide block 24, a first sliding plate 3000 is slidably disposed in the first groove 230, and a second sliding plate 3010 is slidably disposed in the second groove 240, so that the adjustment handle 30 moves along the directions of the first guide block 23 and the second guide block 24, and the movement of the lifting adjustment handle 30 is more stable.

Preferably, a driving inclined slot 3001 is provided on each of the first driving arm 300 and the second driving arm 301, the locking shaft is inserted into the driving inclined slot 3001, and the adjustment handle 30 drives the locking shaft through the driving inclined slot 3001.

During actual installation, two ends of the locking shaft are respectively penetrated into the driving chutes 3001, the first shaft seat 21 and the second shaft seat 22 are inserted into two ends of the locking shaft, and the first shaft seat 21 and the second shaft seat 22 are connected with the chair back 2, so that the adjusting handle 30 is installed on the chair back 2, and the angle of the chair back 2 can be conveniently adjusted.

Preferably, the first driving arm 300 and the second driving arm 301 are each provided with a horizontal slot 3002 communicating with the driving chute 3001. The horizontal slot 3002 allows the locking member 31 to be in the locking slot 11 with a certain range of motion between the locking member 31 and the driving slot 3001, which allows a certain delay after pulling the adjustment handle 30, thereby preventing accidental contact.

Preferably, the first shaft seat 21 and/or the second shaft seat 22 and/or the first guide block 23 and/or the second guide block 24 are disposed separately from or integrally with the seat back 2.

In this embodiment, an elastic member 4 is disposed between the adjustment handle 30 and the seat back 2, one end of the elastic member 4 is connected to the adjustment handle 30, the other end is connected to the seat back 2, and the elastic member 2 is used for resetting the adjustment handle 30.

In the scheme, the base 1 and the chair back 2 are connected in a sliding mode through the sliding block 20 and the sliding groove 11, so that the chair back 2 slides along the arc surface of the base 1, the angle adjustment of the chair back 2 is realized, the structure is simple, the chair back 2 is stably adjusted, and the manufacturing cost is reduced; and through the locking assembly 3 and the elastic piece 4, the gear of the chair back 2 is firmly adjusted, the adjusting handle 30 can reciprocate, and the use reliability is good.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a back of chair angle adjustment mechanism of children's safety seat which characterized in that, including:

the base is provided with a sliding groove and a plurality of locking grooves;

2. The chair back angle adjustment mechanism of a child safety chair according to claim 1, wherein the slider includes a guide portion and a limiting portion connected to the guide portion, the guide portion is inserted into the sliding groove, and the limiting portion is located below the sliding groove.

3. The chair back angle adjustment mechanism of a child safety chair according to claim 2, wherein the base is further provided with a receiving groove communicated with the sliding groove, and the limiting portion is disposed in the receiving groove.

4. The chair back angle adjustment mechanism of a child safety seat according to claim 1, 2 or 3, wherein the slider is a T-shaped block detachably connected to the chair back.

5. The chair back angle adjustment mechanism of a child safety chair according to claim 1, 2 or 3, characterized in that the number of the sliding blocks is two or four, and the sliding blocks are symmetrically arranged on the chair back.

6. The chair back angle adjustment mechanism of a child safety chair according to claim 1, 2 or 3, wherein the locking member is a locking shaft;

7. The chair back angle adjustment mechanism of a child safety seat according to claim 6, wherein the adjustment handle comprises a first driving arm and a second driving arm arranged at intervals, the first driving arm extends a first sliding plate to the second driving arm side, and the second driving arm extends a second sliding plate to the first driving arm side;

8. The mechanism of claim 7, wherein the first and second driving arms each have a driving slot, the locking shaft extends through the driving slot, and the adjustment handle drives the locking shaft through the driving slot.

9. The chair back angle adjustment mechanism of a child safety chair according to claim 8, wherein the first and second driving arms are provided with horizontal grooves communicating with the driving chutes.

10. The chair back angle adjustment mechanism of a child safety chair according to claim 7, wherein the first shaft seat and/or the second shaft seat and/or the first guide block and/or the second guide block are provided separately from or integrally with the chair back;