CN202753817U - Seat back assembly and its child safety seat - Google Patents

Abstract

The utility model discloses a back of chair subassembly installs on children's safety seat's seat body, including leaning against, head rest group and height adjustment mechanism, the one end of leaning against install in the base, head rest group install with sliding in the other end that leans against, be equipped with a plurality of draw-in grooves on the backrest. Wherein, height adjustment mechanism includes operating parts, moving member and kelly, the operating parts install in with sliding in head rest group, the operating parts is contradicted the moving member, the one end card of moving member is gone into head rest group, the other end of moving member with kelly fixed connection, kelly and one the draw-in groove block, operation the operating parts drive the moving member removes so that the kelly remove with one of them the block of draw-in groove. Compared with the prior art, the chair back component has the advantages of simple structure, low cost and convenient operation. The utility model discloses provide simultaneously one kind include the headrest group with height adjustment mechanism's children's safety seat.

Description

Seat back assembly and its child safety seat

technical field

The utility model relates to the field of child car safety seats, in particular to a seat back assembly and a child safety seat thereof.

Background technique

A child safety seat is a device that is tied to a car seat for a child to ride, and the child is fixed in the child safety seat by a restraint device to ensure the safety of the child. Because the child safety seat can minimize the injury to the child in the case of emergency braking or accidental collision of the car. Therefore, child safety seats are quickly accepted by consumers and are slowly being promoted all over the world.

Existing child car safety seats generally include a seat body and a seat back assembly mounted on the seat body. The chair back assembly includes a backrest and a headrest set, the backrest is installed on the seat body, and the headrest set is installed on the upper end of the backrest. In order to meet the seating requirements of children of different age groups, the headrest group can generally be adjusted in height relative to the backrest.

In order to solve the above problems, a height adjustment mechanism is generally added to the seat back assembly. However, most of the existing height adjustment mechanisms are complex in structure and inconvenient to operate.

Therefore, it is necessary to provide a novel chair back assembly whose height adjustment mechanism has a simple structure and is easy to operate.

Utility model content

The purpose of the utility model is to provide a chair back assembly, the height adjustment mechanism of the chair back assembly is simple in structure and easy to operate.

Another object of the present utility model is to provide a child safety seat, the seat back assembly of the child safety seat has a height adjustment mechanism, the height adjustment mechanism is simple in structure and easy to operate.

In order to achieve the above purpose, the utility model provides a seat back assembly, which is arranged on the seat body of the child safety seat, including a backrest, a headrest group and a height adjustment mechanism, one end of the backrest is installed on the The seat body, the headrest group is slidably installed on the other end of the backrest, and the backrest is provided with a plurality of card slots. Wherein, the height adjustment mechanism includes an operating part, a moving part and a clamping rod, the operating part is slidably installed on the headrest group, the operating part resists the moving part, and one end of the moving part snaps into the The headrest set, the other end of the moving part is fixedly connected to the lever, and the lever is engaged with one of the slots, and the operating part is operated to drive the moving part to move the The locking rod moves away from engaging with one of the locking slots.

Compared with the prior art, the height adjustment mechanism of the seat back assembly of the utility model includes an operating part, a moving part and a clamping rod, the operating part is slidably installed on the headrest group, the operating part resists the movement of the moving part, The other end of the moving part is fixedly connected to the clamping rod; pressing the operating part can drive the moving part to move outwards, and drive the clamping rod to move outwards so as to break away from the card slot on the back. combined, so as to realize the adjustment of the height of the headrest group relative to the backrest. The height adjustment mechanism has a simple structure and is easy to operate.

Specifically, one end of the moving part is pivotally connected to the headrest group, and the other end of the moving part is connected to the locking rod.

Specifically, the operation part includes an operation part and a push rod part, the operation part and the push rod part are integrated, the push rod part interferes with the moving part, and the operation of the operation part makes the push rod section slides down the headrest set.

Specifically, the moving part includes a first conflicting portion and a socket portion, the headrest group has a headrest body, the headrest body is provided with a long groove, and the push rod portion is arranged in the long groove, The first conflicting portion is inserted into the long slot and conflicts with the push rod portion, and the clamping rod is sleeved on the sleeve portion.

Preferably, the moving member further includes a pivot, one end of the first conflicting portion interferes with the push rod portion, and the other end of the first conflicting portion forms the pivot.

In a preferred embodiment of the present invention, the headrest set further includes a fixing part, the fixing part is installed on the headrest body, and the moving part is located between the headrest body and the fixing part .

Specifically, there is a slot under the fixing member, and a shoulder strap passes through the slot and wraps around the clamping rod.

Preferably, the height adjustment mechanism further includes a second reset member, the moving member includes a second interference portion, and the two ends of the second interference portion are respectively connected to the pivot and the sleeve portion, and the second One end of the reset member is in contact with the second contact portion, and the other end of the reset member is in contact with the fixing member.

Preferably, the second reset member is a spring.

Preferably, the height adjustment mechanism further includes a first reset member, the headrest body is provided with an abutting portion, one end of the first reset member touches the abutment portion, and the other end of the first reset member One end is in contact with the operating member.

Preferably, the first return member is a spring.

Preferably, the backrest is further provided with a limiting piece, and when the headrest group slides upward relative to the backrest, the limiting piece resists the fixing piece to prevent the headrest group from moving from the backrest. Leave.

Preferably, the headrest set further includes a support, the headrest body is mounted on the support, and the support slides up and down with the headrest body relative to the backrest.

Correspondingly, the utility model also provides a child safety seat, including a seat back assembly, a seat body and shoulder straps, the seat back assembly includes a backrest, a headrest group and a height adjustment mechanism, the backrest One end is installed on the seat body, the headrest group is slidably installed on the other end of the backrest, and the height adjustment mechanism is installed between the backrest and the headrest group, wherein the headrest The set has a slot through which the shoulder straps pass and move up and down with the headrest set, the headrest set and the height adjustment mechanism as described above.

The utility model will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the utility model.

Description of drawings

Fig. 1 is a perspective view of an embodiment of the child safety seat of the present invention, wherein the shoulder belt part is not shown, and the headrest group is at a first height position.

Fig. 2 is a perspective view of the headrest group of the seat back assembly shown in Fig. 1 at a second height position.

Fig. 3 is a rear view of Fig. 1 .

FIG. 4 is a perspective view of FIG. 3 with the seat body and the backrest removed.

FIG. 5 is a perspective view after removing the fixing part shown in FIG. 4 .

FIG. 6 is an exploded view of FIG. 4 .

Fig. 7 is an enlarged exploded view of the height adjustment mechanism shown in Fig. 6 .

FIG. 8 is a perspective view from another angle of FIG. 4 .

Fig. 9 is a sectional view along line A-A shown in Fig. 8 .

Fig. 10 is a partial sectional view along line B-B shown in Fig. 1 .

Detailed ways

Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.

Please refer to FIG. 1, an embodiment of the child safety seat 1 of the present invention includes a seat back assembly 100, a seat body 200 and a shoulder strap 300, the seat back assembly 100 is arranged on the upper end of the seat body 200, so The shoulder straps pass through the seat back assembly 100.

Specifically, as shown in FIGS. 1 to 4, the seat back assembly 100 includes a backrest 10, a headrest group 12, and a height adjustment mechanism 16. One end (ie, the lower end) of the backrest 10 is installed on the seat Body 200, the headrest group 12 is slidably installed on the other end (ie the upper end) of the backrest 10, and the height adjustment mechanism 16 is installed between the backrest 10 and the headrest group 12 to realize the Adjustment of the height position of the headrest group 12 relative to the backrest 10 .

3 to 7, the backrest 10 is provided with a plurality of card slots 101, the height adjustment mechanism 16 includes an operating part 161, a moving part 162 and a lever 163, the headrest group 12 It includes a headrest body 121, a fixing piece 122 and a support piece 123, the support piece 123 is installed on the headrest body 121, and the support piece 123 slides up and down with the headrest body 121 relative to the backrest 10, The fixing part 122 is installed on the headrest body 121, and the moving part 162 is located between the headrest body 12 and the fixing part 122, and the operating part 161 is slidably installed on the headrest body 121, one end of the moving part 162 is pivotally connected to the headrest body 121, and the other end is fixedly connected to the lever 163, and one end of the operating part 161 resists the moving part 162 to operate the The operating part 161 can drive the moving part 162 and the locking lever 163 to rotate outward, and the locking lever 161 selectively engages with one of the locking slots 101 to realize that the headrest group 12 slides relative to the backrest 10 Position lock.

Specifically, there is a slot 1221 under the fixing member 122 , and the shoulder strap passes through the slot 1221 and wraps around the locking rod 163 . When the height of the headrest set 12 is adjusted, the shoulder straps will move up and down together with the headrest set 12 to realize the height adjustment of the shoulder straps.

Specifically, please refer to FIG. 6 to FIG. 9 , the height adjustment mechanism 16 also includes a first reset member 164 and a second reset member 165, the headrest body 121 is provided with an abutment portion 1211, the first One end of the reset member 164 is in contact with the contact portion 1211 , the other end of the reset member 164 is in contact with the operating member 161 , one end of the second reset member 165 is in contact with the moving member 162 , and the second reset member 164 is in contact with the moving member 162 . The other end of 165 is in contact with the fixing member 122 .

Specifically, please refer to FIG. 5 to FIG. 7 again, the operating member 161 includes an operating part 1611 and a push rod part 1612, and the operating part 1611 and the push rod part 1612 are integrated in this embodiment; the moving The piece 162 includes a first resisting part 1621, a second resisting part 1622, a pivot 1623 and a socket part 1624. The headrest body 121 is provided with a long slot 1212, and the push rod part 1612 is set in the long slot 1212. One end of the first resisting part 1621 is inserted into the long slot 1212 to resist the push rod part 1612, the other end of the first resisting part 1621 forms the pivot 1623, and the two ends of the second resisting part 1622 The two ends are respectively connected with the pivot 1623 and the sleeve portion 1624, one end of the second reset member 166 is in contact with the second conflicting portion 1622, and the sleeve portion 1624 is directed from the slot 2332 of the fixing member 122 to After passing out, the clamping rod 163 is clamped into the sleeve portion 1624 .

Specifically, as shown in FIG. 10 , the backrest 10 is also provided with a limiting member 102. When the headrest group 12 slides upward, the fixing member 122 resists the limiting member 102 to effectively prevent the head from The backrest 12 moves away from the backrest 10 .

Preferably, in this embodiment, both the first reset member 164 and the second reset member 165 are springs.

It should be noted that, in this embodiment, the operation portion 161 is substantially T-shaped, and the two push rod portions 162 extend downward from two sides of the T-shape of the operation portion 161 . There are two moving parts 162 , second resetting parts 165 and two fixing parts 122 corresponding to the two push rod parts 162 .

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 10 below to describe in detail the process of adjusting the height of the headrest group 12 of the seat back assembly 100 of the present invention: as shown in Fig. 1 and Fig. 3, when the headrest group 12 When the backrest 10 is at the first height position, the clamping rod 162 is engaged with one of the clamping grooves 101, and at this time, the first reset member 164 and the second reset member 165 are in a natural position. Stretch state. Press the operating part 1611 of the operating member 161 in the direction of the arrow F shown in FIG. 10 , and the push rod part 1612 will push the moving part 162 to pivot outward around the pivot 1623 in the direction of the arrow A shown in the figure. At the same time, it will drive the clamping rod 163 to pivot to disengage from the clamping slot 101 , so that the height of the headrest group 12 relative to the backrest 10 can be adjusted up and down at will. If the headrest group 12 is adjusted downward, the state shown in FIG. 2 will be reached. During the above process, both the first reset member 164 and the second reset member 165 have a certain elastic recovery force due to being squeezed. When the headrest group 12 moves to the second height position as shown in FIG. The moving part 162 pivots inwardly around the pivot 1623, and at the same time drives the locking lever 163 to pivot inwardly, so as to reengage with the other locking slot 101, completing the relative movement of the headrest group 12 to the The position of the backrest 10 slides is locked to complete the entire height adjustment process.

It can be seen from the above description that the height adjustment mechanism 16 of the seat back assembly 100 has a simple structure and is easy to operate.

The utility model has been described above in conjunction with the best embodiments, but the utility model is not limited to the above-disclosed embodiments, but should cover various modifications and equivalent combinations based on the essence of the utility model.

Claims (14)

1. chair back assembly, be arranged on the seat body of child safety seat, comprise and leaning against, head rest group and height regulating mechanism, a described end that leans against is installed on described seat body, described head rest group is installed on the described other end that leans against slidably, described leaning against is provided with a plurality of draw-in grooves, it is characterized in that: described height regulating mechanism comprises operating parts, moving member and kelly, described operating parts is installed on described head rest group slidably, the described operating parts described moving member of conflicting, one end of described moving member snaps in described head rest group, the other end of described moving member is connected with described kelly, described kelly engages with described one of them draw-in groove that leans against, and operates that described operating parts drives that described moving member moves so that described kelly moves apart and the engaging of one of them described draw-in groove.

2. chair back assembly as claimed in claim 1 is characterized in that: an end of described moving member and described head rest group articulate, and the other end of described moving member is connected with described kelly.

3. chair back assembly as claimed in claim 1, it is characterized in that: described operating parts comprises operating portion and push rod section, described operating portion and push rod section are the integral type structure, and described push rod section and described moving member are conflicted, operate described operating portion so that described push rod section along described head rest group down sliding.

4. chair back assembly as claimed in claim 3, it is characterized in that: described moving member comprises the first contact part and socket part, described head rest group has a head rest body, described head rest body is provided with an elongated slot, described push rod section is arranged at described elongated slot, described the first contact part inserts described elongated slot and described push rod section conflicts, and described kelly is socketed on described socket part.

5. chair back assembly as claimed in claim 4, it is characterized in that: described moving member also comprises a pivot, and an end of described the first contact part and described push rod section conflict, and the other end of described the first contact part forms described pivot.

6. chair back assembly as claimed in claim 5, it is characterized in that: described head rest group also comprises a connecting element, described connecting element is installed on described head rest body, and described moving member is between described head rest body and connecting element.

7. chair back assembly as claimed in claim 6 is characterized in that: described connecting element below has a fluting, and a shoulder belt passes described fluting and twines described kelly.

8. chair back assembly as claimed in claim 6, it is characterized in that: described height regulating mechanism also comprises the second return unit, described moving member comprises the second contact part, the two ends of described the second contact part are connected with the socket part with described pivot respectively, one end of described the second return unit described the second contact part of conflicting, the other end of the described return unit described connecting element of conflicting.

9. chair back assembly as claimed in claim 8, it is characterized in that: described the second return unit is a spring.

10. such as each described chair back assembly of claim 5-8, it is characterized in that: described height regulating mechanism also comprises the first return unit, described head rest body is provided with an abutting part, one end of described the first return unit described abutting part of conflicting, the other end of described the first return unit described operating parts of conflicting.

11. chair back assembly as claimed in claim 10 is characterized in that: described the first return unit is a spring.

12. chair back assembly as claimed in claim 10 is characterized in that: described leaning against also is provided with a limited part, and described head rest group is relatively described when leaning against upward sliding, and the described limited part described connecting element of conflicting moves apart from described leaning against to prevent described head rest group.

13. chair back assembly as claimed in claim 12 is characterized in that: described head rest group also comprises strut member, and described head rest body is installed on described strut member, and described strut member with described head rest body relatively described leaning against slide up and down.

14. child safety seat, comprise chair back assembly, seat body and shoulder belt, described chair back assembly comprises and leaning against, head rest group and height regulating mechanism, a described end that leans against is installed on described seat body, described head rest group is installed on the described other end that leans against slidably, described height regulating mechanism be installed on described lean against and the head rest group between, it is characterized in that: described head rest group has a fluting, described shoulder belt passes described fluting, and described shoulder belt moves up and down with described head rest group, and described head rest group and described height regulating mechanism are such as claim 1-13 as described in each.

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