CN109228978A

CN109228978A - The seat seat back lock device of safety seat

Info

Publication number: CN109228978A
Application number: CN201811440948.3A
Authority: CN
Inventors: 符锡炯
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-29
Filing date: 2018-11-29
Publication date: 2019-01-18

Abstract

The present invention relates to a kind of seat seat back lock devices of safety seat, for the safety seat including seat and the chair back, it is characterized by comprising the locks for connecting seat and the chair back, the seat, which is located on the surface at rear portion, offers perforation, the limiting section that latch functions can be realized with snap fit is provided on the inner sidewall of the perforation, the chair back lower end is convexly equipped with the pillar that can be inserted into the perforation, the lockhole for lock insertion is offered on the lateral wall of the pillar, the lock can be after pillar be inserted into perforation, it is inserted into from the lockhole of pillar, and end exposes to lockhole, and it is cooperatively connected with limiting section.Compared with prior art, the present invention has the advantages that by being respectively cooperating with setting perforation and pillar on seat and the chair back, lockhole is opened up on pillar again and plugs lock, the limiting section being arranged in cooperation perforation is locked, and the assembly or disassembly of the seat chair back of safety seat just can be accomplished in a simple using only a small number of elements.

Description

The seat seat back lock device of safety seat

Technical field

The present invention relates to safety seat technical fields, refer specifically to a kind of seat seat back lock device of safety seat.

Background technique

Safety measure such as safety belt, air bag on automobile are substantially to be designed according to adult stature and weight , the stature and weight of children are different from adult, if not only be directly used in generation it is urgent in the case where can not reduce injury, Increase the injury to children instead.Therefore people have devised child safety seat to protect children.

Child safety seat is generally made of seat and the chair back, is combined with diversified forms between seat and the chair back.As specially Application No. is the utility model patent of CN201420656414.5 (notification number the CN204249847U) " groups on kind automobile for benefit Dress formula child safety seat " disclosed in a kind of assembly type child safety seat on automobile, including seat, installation be erected at chair The chair back and two handrails in two side of seat at seat top, wherein seat bottom be equipped with collapsible chair leg, handrail and the chair back into Row fastens cooperation, and handrail is by the balustrade panel that is respectively at the armrest seat of two side of seat and is respectively hinged on armrest seat with one side It constitutes, handrail back is equipped with catching groove, lock is equipped between the balustrade panel other side and armrest seat, chair back lower part is equipped at two sides The raised fixture block that can be clasped with the catching groove of the handrail back.

But element provisioned in the program is more, assembly or disassembly is still more troublesome.

Summary of the invention

A kind of the technical problem to be solved by the invention for the present situation of prior art is to provide elements few, assembly and disassembly The seat seat back lock device of simple safety seat.

The technical scheme of the invention to solve the technical problem is: a kind of seat seat back lock of safety seat fills It sets, for the safety seat including seat and the chair back, it is characterised in that: described including the lock for connecting seat and the chair back Seat, which is located on the surface at rear portion, offers perforation, and latch functions can be realized with snap fit by being provided on the inner sidewall of the perforation Limiting section, the chair back lower end is convexly equipped with the pillar that can be inserted into the perforation, offers confession on the lateral wall of the pillar The lockhole of insertion is latched, the lock can be inserted into, and end exposes to lockhole after pillar is inserted into perforation from the lockhole of pillar, And it is cooperatively connected with limiting section.

Preferably, the limiting section is stopper section of the projection on the inner sidewall of perforation, and lock is cooperatively connected with limiting section When, the end of lock and the lower end surface of stopper section offset；Or the limiting section is the slot being provided on the inner sidewall of perforation, When lock is cooperatively connected with limiting section, the end of lock is inserted in slot.Lock and limit are able to achieve by the two schemes The mating connection in position portion.

Preferably, it is convexly equipped with grip part on the bottom surface of the lock, is offered on the lower end surface of the pillar and lockhole phase The loose slot of perforation, the loose slot can be for grip part activities, so that user can complete lock by driving grip part Locking and unlocking, improve the operation ease of lock.

Further, it is provided with anti-slip part on the grip part lateral wall, to play anti-skidding purpose.

Further, the anti-slip part is anti-skidding raised line.The structure of the anti-slip part can be arranged according to demand, in addition to anti-skidding convex Outside item, anti-slip part can also be designed to anti-skidding recessed bar, anti-skidding salient point etc., can achieve identical anti-skidding purpose.

Preferably, inner cavity is offered inside the lock.Such hollow design can reduce material cost, reduce lock 3 overall weight improves the portability of lock.

Further, it is convexly equipped with reinforcing rib on the side wall of the inner cavity of the lock, to improve the intensity of lock, avoids latching Serious deformation occurs when stress, solves the problems, such as that hollow design bring intensity declines.

Preferably, the quantity difference at least two of the perforation and pillar.The quantity of perforation and pillar can be according to demand Setting, the increase of quantity mean the increase of keyed end, stability when locking can be improved.

Preferably, the seat, which is located on the surface at rear portion, offers limit hole, and the chair back lower end, which is convexly equipped with, to be inserted into To the limited post in the limit hole, to improve the stability after seat and chair back assembly.

It preferably, further include headrest, the headrest is mounted on chair back top, to improve the comfort of safety seat.

Compared with the prior art, the advantages of the present invention are as follows: by be respectively cooperating on seat and the chair back setting perforation and Pillar, then open up lockhole on pillar and plug lock, the limiting section being arranged in cooperation perforation is locked, and a small number of elements are used only Just the assembly or disassembly of the seat chair back of safety seat can be accomplished in a simple.

Detailed description of the invention

Fig. 1 is the solid of the seat seat back lock device (lock is in the lock state) of safety seat in the embodiment of the present invention Structural schematic diagram；

Fig. 2 is the schematic perspective view of Fig. 1 other direction；

Fig. 3 is the perspective exploded view of Fig. 2；

Fig. 4 is the schematic perspective view of Fig. 1 other direction；

Fig. 5 is the cross-sectional view of Fig. 4；

Fig. 6 is cross-sectional view when latching in the unlocked state in Fig. 4.

Specific embodiment

The present invention will be described in further detail below with reference to the embodiments of the drawings.

As shown in Figures 1 to 6, the seat seat back lock device of a kind of safety seat, for including seat 1, the chair back 2 and head The safety seat of pillow 4, which includes the lock 3 for connecting seat 1 and the chair back 2, and headrest 4 is mounted on 2 top of the chair back, thus Improve the comfort of safety seat.

Seat 1, which is located on the surface at rear portion, offers perforation 11, and being provided on the inner sidewall of the perforation 11 can match with lock 3 The limiting section 111 for realizing latch functions is closed, 2 lower end of the chair back is convexly equipped with the pillar 21 that can be inserted into perforation 11, the pillar 21 The lockhole 211 for 3 insertion of lock is offered on lateral wall, lock 3 can be after pillar 21 be inserted into perforation 11, from the lockhole of pillar 21 211 insertions, and end exposes to lockhole 211, and is cooperatively connected with limiting section 111.In the present embodiment, limiting section 111 is projection Stopper section on the inner sidewall of perforation 11 latches under 3 end and stopper section when lock 3 is cooperatively connected with limiting section 111 End face offsets, naturally it is also possible to be designed as being provided with the slot on the inner sidewall of perforation 11, lock 3 and limit for limiting section 111 It when portion 111 is cooperatively connected, latches 3 end and is inserted in slot, can reach identical purpose with this solution, that is, realize lock 3 with the mating connection of limiting section 111.When lock 3 is in the lock state, the end for latching 3 exposes to lockhole 211, lock 3 and limit Position portion 111 is cooperatively connected, and when lock 3 is in the unlocked state, latches 3 end accommodation in lockhole 211, lock 3 and limiting section 111 separation.Wherein, the quantity of perforation 11 and pillar 21 can be arranged according to demand, in the present embodiment, the number of perforation 11 and pillar 21 Amount is respectively two, and the increase of quantity means the increase of keyed end, and stability when locking can be improved.

In order to improve lock 3 operation ease, latch and be convexly equipped with grip part 31 on 3 bottom surface, the lower end surface of pillar 21 On offer the loose slot 212 to connect with lockhole 211, which can be for the activity of grip part 31, so that user can be with The locking and unlocking of lock 3 are completed by driving grip part 31.It is provided with anti-slip part 311 on 31 lateral wall of grip part, this is anti-skidding The structure in portion 311 can be arranged according to demand, and in the present embodiment, anti-slip part 311 is anti-skidding raised line, naturally it is also possible to by anti-slip part 311 are designed to anti-skidding recessed bar, anti-skidding salient point etc., can achieve identical anti-skidding purpose.

In order to improve the portability of lock 3, inner cavity 32 is offered inside lock 3, such hollow design can reduce material Expect cost, reduces the overall weight of lock 3.In order to solve the problems, such as that hollow design bring intensity declines, 3 inner cavity 32 is latched It is convexly equipped with reinforcing rib 33 on side wall, to improve the intensity of lock 3, avoids that serious deformation occurs when 3 stress of lock.

In addition, seat 1, which is located on the surface at rear portion, offers limit hole 12,2 lower end of the chair back, which is convexly equipped with, can be inserted into limit Limited post 22 in hole 12, to improve the stability after seat 1 and the assembly of the chair back 2.

Working principle of the present invention is as follows: by the grip part 31 of driving lock 3, lock 3 is inserted into lockhole 211, Until the end of lock 3 is flushed with the end of lockhole 211；

(1) it assembles: the pillar 21 of the chair back 2 is first aligned to the perforation 11 of seat 1, the limited post 22 of the chair back 2 is directed at seat 1 Limit hole 12 be inserted into, then driving lock 3 grip part 31, make lock 3 end gradually expose to lockhole 211, Zhi Daosuo The end of button 3 and the lower end surface of stopper section offset, as shown in figure 5, lock 3 is in the lock state at this time, that is, complete safety seat Seat and the chair back between assembly；

(2) dismantle: the first grip part 31 of driving lock 3 is placed in the end of lock 3 gradually in lockhole 211, Zhi Daosuo The end of button 3 is separated with the lower end surface of stopper section, and the end of lock 3 is flushed with the end of lockhole 211 at this time, as shown in fig. 6, this When lock it is 3 in the unlocked state, the chair back 2 is extracted then up, so that the pillar 21 of the chair back 2 is detached from the perforation 11 of seat 1, the chair back 2 limited post 22 is detached from the limit hole 12 of seat 1, i.e. disassembly between the seat and the chair back of completion safety seat.

Claims

1. a kind of seat seat back lock device of safety seat, the safety seat including being used for seat (1) and the chair back (2) is special Sign is: including the lock (3) for connecting seat (1) and the chair back (2), the seat (1), which is located on the surface at rear portion, to be opened up There are perforation (11), the limiting section for realizing latch functions can be cooperated with lock (3) by being provided on the inner sidewall of the perforation (11) (111), the chair back (2) lower end is convexly equipped with the pillar (21) that can be inserted into the perforation (11), the outside of the pillar (21) The lockhole (211) for lock (3) insertion is offered on wall, the lock (3) can be after pillar (21) be inserted into and perforate (11), from convex The lockhole (211) of column (21) is inserted into, and end exposes to lockhole (211), and is cooperatively connected with limiting section (111).

2. the seat seat back lock device of safety seat according to claim 1, it is characterised in that: the limiting section It (111) is stopper section of the projection on the inner sidewall of perforation (11), when lock (3) and limiting section (111) are cooperatively connected, lock (3) lower end surface of end and stopper section offsets；Or the limiting section (111) is to be provided on the inner sidewall of perforation (11) Slot, when lock (3) and limiting section (111) are cooperatively connected, the end of lock (3) is inserted in slot.

3. the seat seat back lock device of safety seat according to claim 1, it is characterised in that: the lock (3) It is convexly equipped on bottom surface grip part (31), the loose slot to connect with lockhole (211) is offered on the lower end surface of the pillar (21) (212), which can be for grip part (31) activity.

4. the seat seat back lock device of safety seat according to claim 3, it is characterised in that: the grip part (31) Anti-slip part (311) are provided on lateral wall.

5. the seat seat back lock device of safety seat according to claim 4, it is characterised in that: the anti-slip part It (311) is anti-skidding raised line.

6. the seat seat back lock device of safety seat according to claim 1, it is characterised in that: in the lock (3) Portion offers inner cavity (32).

7. the seat seat back lock device of safety seat according to claim 6, it is characterised in that: the lock (3) Reinforcing rib (33) are convexly equipped on the side wall of inner cavity (32).

8. the seat seat back lock device of safety seat according to claim 1, it is characterised in that: the perforation (11) and The quantity difference at least two of pillar (21).

9. the seat seat back lock device of safety seat according to claim 1, it is characterised in that: seat (1) position In offering on the surface at rear portion limit hole (12), the chair back (2) lower end is convexly equipped with and can be inserted into the limit hole (12) Limited post (22).

10. the seat seat back lock device of described in any item safety seats according to claim 1~9, it is characterised in that: also wrap It includes headrest (4), the headrest (4) is mounted on the chair back (2) top.