CN215154112U

CN215154112U - Chair back inclination angle adjusting mechanism of child safety seat

Info

Publication number: CN215154112U
Application number: CN202120888356.9U
Authority: CN
Inventors: 何声中; 傅斌; 林艳; 张磊
Original assignee: NINGBO GLOBAL KIDS BABY PRODUCTS CO Ltd
Current assignee: NINGBO GLOBAL KIDS BABY PRODUCTS CO Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-14
Anticipated expiration: 2031-04-27

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 chute and a plurality of locking holes; the chair back is arranged on the base, a sliding part and a mounting seat connected with the sliding part are arranged on the chair back, and the sliding part is slidably arranged in the sliding groove; the locking assembly comprises a locking piece, an unlocking piece and a connecting piece; the locking piece is movably arranged in the locking hole, the unlocking piece is slidably arranged on the mounting seat, the connecting piece is hinged on the mounting seat, one end of the connecting piece is connected with the locking piece, and the other end of the connecting piece is connected with the unlocking piece. The utility model has the advantages of, through set up the deblocking piece on the back of the chair, the back of the chair can directly be unblock to the pulling deblocking piece, realizes back of the chair angle modulation, and the back of the chair is adjusted conveniently, only needs less power can stimulate the deblocking piece, adjusts laborsavingly, and uses conveniently.

Description

Chair back inclination 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 inclination adjustment mechanism.

Background

In order to adapt the child seat to children with different heights and sizes and the riding comfort of the children, the child seat is generally provided with a comfortable and safe riding environment by adjusting the inclination angle of the seat back. In the conventional chair back angle adjusting device of the automobile child safety seat, the angle between the base and the chair back is adjusted through the angle adjusting handle, when the angle is adjusted, the adjusting handle directly pulls the locking piece to unlock, and the adjusting handle needs to be pulled by a large force to unlock, so that the operation is inconvenient, and the use effect is influenced; and the situation of jamming is easy to occur.

The patent "CN 211684780U" discloses a chair back angle adjustment gear linkage lock release mechanism, which comprises a connecting rod for connecting a chair body and a base, and further comprises an adjustment fixing seat, a gear bolt and a reset piece, wherein the adjustment fixing seat is arranged at the bottom of the chair body, the base is provided with a second sliding groove and a gear hole which are mutually communicated at two sides of the adjustment fixing seat, two sides of the adjustment fixing seat are provided with mounting cavities which are mutually communicated, the inner side end of the gear bolt passes through the second sliding groove and then extends into the mounting cavity, and can slide along the extending direction of the mounting cavity, and the inner side ends of the two gear bolts are both connected with the reset piece; when the angle between the seat body and the base needs to be adjusted, the outer side end of the gear bolt is pressed to enable the gear bolt to move towards the installation cavity and separate from the gear hole, and then the angle of the seat body relative to the base is adjusted; when angular adjustment between seat body and the base accomplished, loosen the gear bolt, the gear bolt outwards moves along the installation cavity under the effect that resets, and the card is gone into in the gear hole. When the chair back angle adjusting mechanism unlocks the chair back and adjusts the gears, the gear bolts at two sides of the chair need to be pressed simultaneously, so that the operation is inconvenient; the gear bolt is connected with the elastic piece, and the pressing force required by unlocking the chair back is larger; the gear adjustment is limited by the elastic piece according to the pressure degree and the reliability, and is frequently used, so that the stability of the adjusting mechanism is low.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model lies in that, a back of chair inclination angle adjustment mechanism of children's safety seat simple structure, the laborsaving of unblock is provided to the above-mentioned not enough that exists to prior art.

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

the base is provided with a sliding chute and a plurality of locking holes;

the chair back is arranged on the base, a sliding part and a mounting seat connected with the sliding part are arranged on the chair back, and the sliding part is slidably arranged in the sliding groove;

the locking assembly comprises a locking piece, an unlocking piece and a connecting piece; the position locking piece is movably arranged in the position locking hole, the unlocking piece is slidably arranged on the mounting seat, the connecting piece is hinged to the mounting seat, one end of the connecting piece is connected with the position locking piece, and the other end of the connecting piece is connected with the unlocking piece.

Furthermore, a first convex column and a through hole are arranged on the mounting seat;

the connecting piece is an L-shaped crank arm, the middle part of the L-shaped crank arm is hinged to the first convex column, one end of the L-shaped crank arm is provided with a convex part, and the other end of the L-shaped crank arm is provided with a first waist hole;

the unlocking piece is provided with a second waist hole, and the protruding part penetrates through the second waist hole;

the locking piece comprises a lock pin and a connecting shaft connected with the lock pin, the connecting shaft penetrates through the first waist hole, and the lock pin can be movably arranged in the locking hole through the through hole.

Furthermore, a second convex column is arranged on the mounting seat, a third waist hole is arranged on the unlocking piece, and the second convex column penetrates through the third waist hole;

the third waist hole is perpendicular to the second waist hole.

Further, the locking assembly further comprises a resetting piece, a first connecting portion is arranged on the mounting seat, a second connecting portion is arranged on the unlocking piece, and two ends of the resetting piece are connected to the first connecting portion and the second connecting portion respectively.

Furthermore, the central line of the sliding groove is a first circular arc, the circle centers of the plurality of locking holes are connected to form a second circular arc, and the first circular arc and the second circular arc are concentrically arranged.

Furthermore, a limiting plate is arranged on the mounting seat and is positioned above the connecting shaft.

Furthermore, the limiting plate is provided with an elastic sheet and a U-shaped through groove arranged around the elastic sheet, and the elastic sheet is positioned above the connecting shaft; the connecting shaft can pass through the U-shaped through groove to be connected with the lock pin.

Furthermore, a ball head is arranged at one end of the lock pin close to the locking hole.

Further, the sliding grooves comprise a first sliding groove and a second sliding groove, the sliding part is a sliding shaft, and the sliding shaft comprises a first sliding shaft and a second sliding shaft;

the chair back is provided with a connecting hole, the first sliding shaft penetrates through the first sliding groove and the connecting hole, and the second sliding shaft penetrates through the second sliding groove and the connecting hole.

Further, sleeves are arranged in the first sliding groove and the second sliding groove, a sleeve connection portion is arranged on the sliding shaft, and the sleeves are sleeved on the sleeve connection portion.

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

in the utility model, the connecting piece (namely the L-shaped crank arm) is hinged on the mounting seat, and one end of the L-shaped crank arm is connected with the unlocking piece and can rotate relatively; the other end of the L-shaped crank arm is connected with the locking part and can rotate relatively; through outwards pulling unblock piece, and then drive L type turning arm and rotate, drive the lockpin and take out from the position locking hole, with the back of the chair unblock from the base, can carry out the inclination of the back of the chair and adjust, through the conversion of L type turning arm, only need very little power just can be with the lockpin unblock from the position locking hole, the labour saving operation. And the both ends of L type turning arm are the connection form of projection cooperation waist groove, when pulling the unblock piece, the difficult dead condition of card that appears, and structural stability is high, is difficult for becoming invalid. On the other hand, in the installation process, the connecting shaft can penetrate through the elastic sheet above the elastic sheet of the U-shaped groove to be connected with the lock pin, the installation is simple, and after the connecting shaft is installed, the connecting shaft can be effectively prevented from being separated from the lock pin under the action of the elastic sheet, so that the structure is stable; and the end part of the lock pin is provided with a ball head, so that the lock pin can be conveniently clamped into the lock position hole.

In the utility model, the sliding groove is arranged on the base, and the sliding part is arranged on the chair back, so that the sliding part can slide along the sliding groove, the adjustment of the inclination angle of the chair back is realized, the chair back is reliably connected with the base, and the sliding is smooth; the unlocking piece is arranged on the chair back, so that the adjustment is convenient; the whole locking assembly is formed by directly connecting an unlocking piece, a connecting piece and a locking piece, and the whole structure is simple; a plurality of locking holes are formed in the sliding direction of the chair back, so that multi-gear chair back angle adjustment can be realized; through the locking assembly and the reset 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 view of a chair back;

FIG. 4 is a schematic structural view of a base;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the connection between the mounting base and the capture assembly;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

FIG. 8 is a schematic structural view of the mounting base;

FIG. 9 is a schematic structural view of a connector;

FIG. 10 is a schematic view of the unlocking member;

fig. 11 is a schematic view showing a structure in which the sliding shaft is connected to the sleeve.

In the figure:

1. a base; 10. a chute; 11. a lock position hole; 12. a sleeve; 100. a first chute; 101. a second chute;

2. a chair back; 20. a slider; 21. connecting holes; 200. a first sliding shaft; 201. a second sliding shaft;

3. a mounting seat; 30. a first convex column; 31. a through hole; 32. a second convex column; 33. a first connection portion; 34. a limiting plate; 340. a spring plate; 341. a U-shaped through groove;

4. a capture assembly; 40. a position locking member; 41. unlocking the lock; 42. a connecting member; 400. a lock pin; 401. a connecting shaft; 410. a second waist hole; 411. a third waist hole; 412. a second connecting portion; 420. a boss portion; 421. a first waist hole; 4000. a ball head;

a. a first arc; b. a second arc.

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 5, 1, a reclining angle adjusting mechanism of a seat back of a child safety seat includes: a base 1, a seat back 2 and a capture assembly 4.

The base 1 is provided with a sliding groove 10 and a plurality of locking holes 11, the sliding groove 10 is arc-shaped, the chair back 2 is slidably arranged on the base 1, the chair back 2 is provided with a sliding part 20 and a mounting seat 3 connected with the sliding part 20, and the sliding part 20 is slidably arranged in the sliding groove 10. Namely, the chair back 2 is connected with the sliding groove 10 on the base 1 through the sliding piece 20, and the chair back 2 can slide relative to the base 1, so that the angle of the chair back 2 is adjusted. The locking assembly 4 comprises a locking piece 40, an unlocking piece 41 and a connecting piece 42, wherein the locking piece 40 is movably arranged in the locking hole 11, the unlocking piece 41 is slidably arranged on the mounting seat 3, the connecting piece 42 is hinged on the mounting seat 3, one end of the connecting piece 42 is connected with the locking piece 40, and the other end of the connecting piece 42 is connected with the unlocking piece 41. Specifically, through setting up the locking subassembly 4 between base 1 and back of the chair 2 for with back of the chair 2 locking on base 1, simultaneously, when the angle of the back of the chair 2 of needs adjusting, only need press the unblock piece 41 on the back of the chair 2 and can follow the unblock on the base 1 with back of the chair 2, easy operation.

Preferably, the mounting base 3 is provided with a first convex column 30 and a through hole 31; the connecting piece 42 is an L-shaped crank arm, the middle part of the L-shaped crank arm is hinged on the first convex column 30, one end of the L-shaped crank arm is provided with a convex part 420, and the other end is provided with a first waist hole 421; the unlocking piece 41 is provided with a second waist hole 410, and the convex part 420 is arranged in the second waist hole 410 in a penetrating way; the locking member 40 includes a lock pin 400 and a connecting shaft 401 connected to the lock pin 400, the connecting shaft 401 is inserted into the first waist hole 421, and the lock pin 400 is movably disposed in the locking hole 11 through the through hole 31. Namely, the connecting piece 42 is rotatably arranged on the mounting seat 3, and the unlocking piece 41 and the locking piece 40 are connected by the connecting piece 42, so that the whole structure is simple; through the connecting piece 42 that should be the setting of L type connecting lever, when making back of the chair 2 unblock, the required dynamics of pulling unblock piece 41 is less, adjusts lightly.

As shown in fig. 7-10, the mounting base 3 is provided with a second protruding column 32, the unlocking piece 41 is provided with a third waist-shaped hole 411, the second protruding column 32 is inserted into the third waist-shaped hole 411, that is, the unlocking piece 41 is connected with the mounting base 3 through the second protruding column 32 and the third waist-shaped hole 411, and the second protruding column 32 can slide relative to the third waist-shaped hole 411, so that the unlocking piece 41 can be slidably arranged on the mounting base 3; the third waist hole 411 is perpendicular to the second waist hole 410, so that the connecting member 42 rotates to pull the unlocking member 41, the connecting member 42 rotates in the sliding direction of the unlocking member 41, and then the lock pin 400 is pulled to move, thereby realizing the locking or unlocking of the chair back 2.

Preferably, the capture assembly 4 further includes a reset member (not shown), the mounting base 3 is provided with a first connecting portion 33, the unlocking member 41 is provided with a second connecting portion 412, and two ends of the reset member are respectively connected to the first connecting portion 33 and the second connecting portion 412. After the unlocking piece 41 is pressed, the lock pin 400 is pulled by the connecting piece 42 to be separated from the locking hole 11, so that the unlocking of the chair back 2 is realized; the piece that resets can be after loosening unlocking piece 41, will unlock piece 41 and draw back, and then drives lockpin 400 and outwards stretches out, and lockpin 400 slides to the position of locking hole 11 along with the back of the chair 2, in alright the lock position hole 11 of going into, the realization back of the chair 2 locking is on base 1.

As shown in fig. 5, the center line of the sliding chute 10 is a first arc a, the centers of the plurality of locking holes 11 are connected to form a second arc b, and the first arc a and the second arc b are concentrically arranged. The locking holes 11 are arranged along the circumferential direction of the sliding grooves 10, and the angle multi-gear adjustment of the chair back 2 can be realized.

As shown in fig. 6-8, the mounting seat 3 is provided with a limiting plate 34, and the limiting plate 34 is located above the connecting shaft 401 to prevent the connecting shaft 401 from being separated; an elastic sheet 340 and a U-shaped through groove 341 surrounding the circumference of the elastic sheet 340 are arranged on the limiting plate 34, and the elastic sheet 340 is positioned above the connecting shaft 401; the connecting shaft 401 may be connected to the latch 400 through the U-shaped through groove 341.

During actual installation, the unlocking piece 41 is firstly installed on the second convex column 32 on the installation seat 3, the connecting piece 42 is installed on the first convex column 30 on the installation seat 3, the convex part 420 on the connecting piece 42 is inserted into the unlocking piece 41, connection between the connecting piece 42 and the unlocking piece 41 is realized, finally, the lock pin 400 is placed between two first waist holes 421 arranged above and below the connecting piece 42, the elastic piece 340 is downwards extruded by the connecting shaft 401 from the upper part of the limit plate 34 and penetrates through the limit plate 34 to be connected with the lock pin 400, and installation of the locking component 4 is realized; the limiting plate 34 can prevent the connecting shaft 401 from being separated, and the elastic sheet 340 is arranged on the limiting plate 34, so that the connecting shaft 401 can be conveniently installed.

Preferably, a ball head 4000 is arranged at one end of the lock pin 400 close to the lock position hole 11, that is, the lock pin 400 arranged on the arc ball head 4000 is conveniently inserted through the through hole 31 on the mounting seat 3 and inserted into the lock position hole 11, so that the lock pin 400 is locked and unlocked smoothly.

As shown in fig. 2 to 5 and 11, the slide groove 10 includes a first slide groove 100 and a second slide groove 101, the slide member 20 is a slide shaft including a first slide shaft 200 and a second slide shaft 201; the chair back 2 is provided with a connecting hole 21, the first sliding shaft 200 is arranged in the first sliding groove 100 and the connecting hole 21 in a penetrating manner, and the second sliding shaft 201 is arranged in the second sliding groove 201 and the connecting hole 21 in a penetrating manner, so that the chair back 2 is connected with the base 1.

In the actual use process, the sleeves 12 are respectively arranged in the first chute 200 and the second chute 201, the sliding shaft 20 is provided with the sleeve-connecting portion 202, and the sleeves 12 are sleeved on the sleeve-connecting portion 201. Namely, the mounting seat 3 is mounted on the sliding part 20, and the sliding part 20 is arranged in the connecting hole 21 and the sliding groove 10 of the chair back 2 in a penetrating way and is connected with the chair back 2 and the base 1; wherein the sleeve 12 is provided to prevent wear of the slider 20 during frequent sliding of the slider 20 with the chute 10.

In the scheme, the chair back angle adjusting mechanism is simple in overall structure, the chair back 2 is convenient to unlock, labor-saving, smooth to slide and not easy to clamp; can realize the multi-angle of the back of the chair 2 and adjust, and can realize that the back of the chair 2 many gears are fixed, the seat overall stability is high, and the practicality is strong.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

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

the base is provided with a sliding chute and a plurality of locking holes;

2. The reclining mechanism of a chair back of a child safety chair according to claim 1, wherein the mounting seat is provided with a first boss and a through hole;

3. The reclining mechanism of a child safety seat according to claim 2, wherein the mounting base has a second protrusion, the unlocking member has a third waist hole, and the second protrusion is inserted into the third waist hole;

the third waist hole is perpendicular to the second waist hole.

4. The chair back tilt angle adjusting mechanism of a child safety seat according to claim 2 or 3, wherein the locking assembly further comprises a reset member, the mounting seat is provided with a first connecting portion, the unlocking member is provided with a second connecting portion, and two ends of the reset member are respectively connected to the first connecting portion and the second connecting portion.

5. The mechanism of claim 1, wherein a center line of the sliding slot is a first arc, centers of the locking holes are connected to form a second arc, and the first arc and the second arc are concentrically disposed.

6. The mechanism of claim 2, wherein a limiting plate is disposed on the mounting seat, and the limiting plate is located above the connecting shaft.

7. The mechanism of claim 6, wherein the limiting plate is provided with a spring and a U-shaped through groove surrounding the spring, and the spring is located above the connecting shaft; the connecting shaft can pass through the U-shaped through groove to be connected with the lock pin.

8. The reclining mechanism of a seat back for a child safety seat according to claim 2, wherein a ball is disposed at an end of the latch adjacent to the capture hole.

9. The chair back tilt angle adjusting mechanism of a child safety chair according to claim 1, wherein the slide groove comprises a first slide groove and a second slide groove, the slide member is a slide shaft, and the slide shaft comprises a first slide shaft and a second slide shaft;

10. The reclining mechanism of a chair back of a child safety seat according to claim 9, wherein a sleeve is disposed in each of the first and second sliding grooves, and a sleeve portion is disposed on the sliding shaft and sleeved on the sleeve portion.