CN111361471A

CN111361471A - Rotary adjusting safety seat

Info

Publication number: CN111361471A
Application number: CN201811592399.1A
Authority: CN
Inventors: 沈俭
Original assignee: Guangzhou Aofei Baby Supplies Co ltd
Current assignee: Guangzhou Aofei Baby Supplies Co ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2020-07-03

Abstract

The invention discloses a rotary adjusting safety seat, which comprises: the seat comprises a seat body, a headrest, a height adjusting structure and a base, wherein rotary holes are formed in the base; seat adjustment mechanism, seat adjustment mechanism includes: the seat comprises a seat body, a base, a rotary plate, a pull plate and a limit part, wherein the rotary plate is rotatably arranged in the rotary hole, the seat body is arranged on the rotary plate, a rotating part between the seat body and the base only comprises the rotary plate, the pull plate is arranged between the seat body and the rotary plate and is provided with a connecting end and a pulling end, the connecting end is connected with the seat body, the pulling end is provided with a clamping bolt, the pulling end can move up and down between the seat body and the rotary plate, the clamping bolt can be driven to be inserted into the limit part on the rotary plate when the pulling end moves downwards, and the clamping bolt can be driven to. According to the invention, the turntable is arranged between the seat body and the base, so that the turntable is large in size and strong in bearing capacity, the turntable is not easy to damage and tilt or clamp, and the turntable can rotate stably. The section area of the rotary table is large, the machining precision requirement is low, and therefore the machining cost can be reduced.

Description

Rotary adjusting safety seat

Technical Field

The invention relates to the field of rotationally adjustable safety seats.

Background

Most of the headrests arranged on the existing rotary adjusting safety seats are nonadjustable in height, and bring inconvenience to children in different ages. The mechanism capable of adjusting the height of the headrest is arranged on some safety seats which are adjusted in a rotating mode, the headrest in some adjusting mechanisms can be directly arranged in a telescopic mode, and the headrest is stopped by friction force, so that the headrest adjusting is prone to failure. In some adjusting mechanisms, the headrests are fixed at different heights of the seat by bolts, and the adjustment of the headrests is too troublesome.

Disclosure of Invention

The utility model aims at solving the technical problem existing in the prior art, and therefore provides a rotary adjusting safety seat which can conveniently adjust the height of a headrest.

The rotation adjustment safety seat according to the present invention comprises: the chair comprises a chair body, wherein the chair body comprises a chair seat and a chair back, the chair back is provided with an inner side surface and an outer side surface, the chair back is provided with a guide groove which is communicated in the thickness direction, and the outer side surface of the chair back is provided with a plurality of clamping grooves which are vertically arranged; the headrest is arranged on the inner side surface of the chair back; a height-adjustment structure, the height-adjustment structure comprising: the operating part is connected with the headrest, a sliding groove is formed in one side, facing the outer side face of the chair back, of the operating part, and the upper surface and the lower surface of the sliding groove extend away from each other in the direction facing the outer side face of the chair back; the fixed part, the fixed part includes slide and guide block, the guide block is established the orientation of slide one side of headrest, the guide block insert to in the guide way and with the headrest links to each other, the slide is followed the vertical slip of guide way, the regulating part includes: the clamping rod is clamped in the clamping grooves on two sides of the guide groove, the convex column penetrates through the guide groove and is inserted into the sliding groove, and the elastic piece is used for driving the convex column to move towards the headrest; the base is provided with a rotating hole; a seat adjustment mechanism, the seat adjustment mechanism comprising: the seat comprises a seat body, a base, a rotary plate, a pull plate and a clamping bolt, wherein the rotary plate is rotatably arranged in the rotary hole, the seat body is arranged on the rotary plate, a rotating part between the seat body and the base only comprises the rotary plate, the pull plate is arranged between the seat body and the rotary plate and is provided with a connecting end and a pulling end, the connecting end is connected with the seat body, the pulling end is provided with the clamping bolt, the pulling end can move up and down between the seat body and the rotary plate, the clamping bolt can be driven to be inserted into a limiting part on the rotary plate when the pulling end moves downwards, and the clamping bolt can be driven to be pulled out when the pulling end moves upwards.

According to the rotary adjusting safety seat provided by the embodiment of the invention, the height of the headrest on the seat body is adjusted by arranging the height adjusting structure, the whole rotary adjusting safety seat is simple in structure and low in processing cost, the height of the headrest can be adjusted by pulling the headrest or the operating part up and down, and the headrest can be well clamped on the seat body when the headrest is stopped to be pulled, so that the height of the headrest is very convenient to adjust. And because the section area of carousel is great, the machining precision requirement is lower to can reduce the processing cost.

In some embodiments, the adjusting portion further includes a roller disposed at an end of the protruding pillar protruding into the sliding groove.

In some embodiments, the fixing portion is provided with a through guiding hole, and the convex column is telescopically arranged in the guiding hole.

In some embodiments, the elastic member is a spring, the spring is disposed in the guide hole and sleeved on the convex post, one end of the spring abuts against the fixed portion, and the other end of the spring abuts against the convex post.

In some embodiments, an end of the post remote from the headrest forms a boss that removably fits over the catch lever.

In some embodiments, the seat back is provided with a plurality of spaced guide grooves, and the fixing portion is provided with a plurality of guide blocks respectively fitted in the guide grooves.

In some embodiments, the operating portion is provided with the sliding groove corresponding to each of the guide grooves, and the adjusting portion includes a plurality of the protruding columns and elastic members corresponding to the plurality of the sliding grooves.

In some embodiments, the top end of the operating portion is provided with a handle, and the sliding groove is formed at the bottom end of the operating portion.

In some embodiments, the headrest is provided with a fixing groove on one side facing the seat back, the operation portion is arranged in the fixing groove, the height-adjusting structure further includes a sliding cover, the sliding cover covers the fixing groove, and the sliding cover is located between the operation portion and the seat back.

In some embodiments, the position-limiting part is a plurality of first gear holes arranged around the turntable and arranged on the base; the seat adjusting mechanism comprises a gear position maintaining elastic piece, and the gear position maintaining elastic piece is arranged between the seat body and the pulling end to drive the pulling end to move downwards.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a rotationally adjustable safety seat according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a seat body, a headrest and a height adjustment structure according to an embodiment of the invention.

Fig. 3 is an exploded schematic view of the seat body, headrest, and height adjustment structure of fig. 2.

Fig. 4 is an enlarged schematic view of a portion of the height adjustment structure.

Fig. 5 is a side view of a seat body according to an embodiment of the invention.

FIG. 6 is a perspective view of a base and seat adjustment mechanism according to an embodiment of the present invention.

Fig. 7 is a perspective view of a base and a turntable according to an embodiment of the invention.

Fig. 8 is a cross-sectional view of the base and turntable shown in fig. 7.

Fig. 9 is a perspective view of a pulling plate according to an embodiment of the present invention.

Reference numerals:

a rotary adjusting safety seat 100,

The chair comprises a chair body 1, a chair seat 11, a chair back 12, an inner side surface S1 of the chair back, an outer side surface S2 of the chair back, a guide groove 13, a clamping groove 14, a first clamping block 15, a second clamping block 16, a sliding rail 17,

A headrest 2, a fixed groove 21,

A base 3, a rotating hole 30, an upper bottom shell 31, a lower bottom shell 32, a suspension plate 34, a first gear hole 36, a limit groove 37, a second gear hole 38,

The height-adjusting structure 4, the operation part 41, the sliding chute 411, the upper surface F1 of the sliding chute, the lower surface F2 of the sliding chute, the handle 412, the fixing part 42, the guide block 421, the sliding plate 422, the guide hole 423, the gap 424, the adjusting part 43, the clamping rod 431, the convex column 432, the elastic piece 433, the roller 434, the shaft sleeve 435, the sliding cover 44,

The seat adjusting mechanism 5, the rotary disc 51, the stop 511, the pulling plate 52, the latch 521, the connecting end P1, the pulling end P2, the retaining block 522, the inserting block 523, the gear position retaining elastic piece 53 and the slide block 54.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The rotation adjustment safety seat 100 according to the embodiment of the present invention will be described with reference to the accompanying drawings.

The rotation adjustment safety seat 100 according to the embodiment of the present invention, as shown in fig. 1, includes: a seat body 1, a headrest 2 and a base 3.

Specifically, the chair body 1 comprises a seat 11 and a backrest 12, and it can be understood that when the rotation-adjustable safety chair 100 is in use, a child sits on the seat 11 and leans against the backrest 12, the backrest 12 has an inner side surface S1 and an outer side surface S2, the surface of the backrest 12 to be leaned against is the inner side surface S1 of the backrest 12, and the surface of the backrest 12 opposite to the inner side surface S1 is the outer side surface S2 of the backrest 12.

Referring to fig. 1 to 3, the headrest 2 is provided on the inner side surface S1 of the seatback 12, and the rotation-adjustable safety seat 100 further includes an elevation structure 4 for adjusting the height of the headrest 2 on the seatback 12.

Specifically, as shown in fig. 3, the seat back 12 is provided with a guide groove 13 penetrating in the thickness direction, the outer side surface S2 of the seat back 12 forms sliding surfaces on both horizontal sides of the guide groove 13, and each sliding surface is provided with a plurality of vertically arranged slots 14.

As shown in fig. 2 to 4, the height-adjusting structure 4 includes: an operating portion 41, a fixing portion 42, and an adjusting portion 43, the operating portion 41 being linked with the headrest 2, the operating portion 41 being provided with a slide groove 411 on a side facing an outer side surface S2 of the seat back 12, an upper surface F1 and a lower surface F2 of the slide groove 411 extending away from each other in a direction facing the outer side surface S2 of the seat back 12. The fixing portion 42 includes a sliding plate 422 and a guide block 421, the guide block 421 is disposed on a side of the sliding plate 422 facing the headrest 2 and connected to the headrest 2, the guide block 421 is inserted into the guide groove 13 and can slide up and down along the guide groove 13, and the sliding plate 422 can slide along sliding surfaces on both sides of the guide groove 13. In this embodiment, the sliding plate 422 is provided to make the contact area between the fixing portion 42 and the seat back 12 of the seat body 1 large and smooth, but the structure of the fixing portion 42 in the embodiment of the present invention is not limited to this, and in other embodiments, the fixing portion 42 may be provided with only the guide block 421 that slides up and down along the guide groove 13, which corresponds to the structure of the fixing portion 42 without the sliding plate 422.

The adjusting portion 43 is movably provided on the fixing portion 42, and the adjusting portion 43 includes: the locking rod 431 is clamped in the clamping grooves 14 on two sides of the guide groove 13, the convex column 432 penetrates through the guide groove 13 and is inserted into the sliding groove 411, and the elastic piece 433 is used for normally driving the convex column 432 to move towards the headrest 2. Here, "normal" refers to the normal state, and "normally driven" means that the elastic member 433 has a tendency to push the stud 432 toward a certain direction.

Specifically, the height adjusting structure 4 has the operating portion 41 and the fixing portion 42 connected to the headrest 2, and the operating portion 41 may be integrally formed with the headrest 2, and when one of the headrest 2, the operating portion 41 and the fixing portion 42 is pulled up and down, the remaining two may be slid up and down.

Here, since the fixing portion 42 includes the slide plate 422 and the guide block 421, the guide block 421 is coupled to the headrest 2, and the slide plate 422 slides along the sliding surfaces on both sides of the guide groove 13, so that the guide block 421 is coupled between the headrest 2 and the slide plate 422, and the headrest 2 and the slide plate 422 are sandwiched between both sides of the seat back 12. Since the guide block 421 in the fixing portion 42 is fitted in the guide groove 13 on the seatback 12, the headrest 2, the operating portion 41, and the fixing portion 42 all slide in the extending direction of the guide groove 13 when the height of the headrest 2 is adjusted.

In the adjusting portion 43, the locking rod 431 is engaged with the locking slots 14 on both sides of the guiding slot 13, the protruding column 432 passes through the guiding slot 13 and is inserted into the sliding slot 411, and the elastic member 433 is used for normally driving the protruding column 432 to move toward the headrest 2, so that the height adjusting structure 4 has two states, one is a height stable state, and the other is a height adjusting state.

In a highly stable state of the headrest 2, the elastic member 433 tightly buckles the protruding column 432 in the sliding slot 411, and after the protruding column 432 is pressed (or tightened) in the sliding slot 411, both ends of the locking rod 431 can be tightly engaged with the locking slots 14 at both sides of the guide slot 13, respectively, so that the headrest 2 cannot slide up and down.

When the headrest 2 (or the operating portion 41) is pulled upward, the operating portion 41 moves upward relative to the boss 432 of the adjusting portion 43, so that the boss 432 of the adjusting portion 43 stops against the lower surface F2 of the slide slot 411. During the upward movement of the operating portion 41, the protruding column 432 is pushed out by the lower surface F2 of the sliding slot 411 against the elastic force of the elastic member 433. While the protruding column 432 is ejected outward, the locking rod 431 of the adjusting portion 43 is also ejected outward of the locking slot 14. Without the locking action of the lock lever 431, the fixing portion 42 can slide upward along the slide surface with the headrest 2. Until the headrest 2 (or the operating part 41) stops being pulled upwards, the convex post 432 is pressed (or tensioned) in the sliding slot 411 by the elastic part 433 again, and the two ends of the clamping rod 431 are tightly clamped in the clamping slots 14 respectively, so that the headrest 2 can not be adjusted upwards any more.

Also, when the headrest 2 (or the operating portion 41) is pressed downward, the operating portion 41 moves downward relative to the boss 432 of the adjusting portion 43, so that the boss 432 of the adjusting portion 43 stops against the upper surface F1 of the sliding slot 411. During the downward movement of the operating portion 41, the stud 432 is pushed out by the upper surface F1 of the sliding slot 411 against the elastic force of the elastic member 433. While the protruding pillar 432 is pushed out, the locking rod 431 of the adjusting portion 43 is pushed out to the locking groove 14, and the fixing portion 42 can slide downward along the sliding surface with the headrest 2. Until the headrest 2 (or the operation part 41) stops being pressed downwards, the convex column 432 is pressed (or tensioned) in the sliding groove 411 by the elastic member 433 again, and the two ends of the clamping rod 431 are tightly clamped in the clamping grooves 14 respectively, so that the headrest 2 cannot be adjusted downwards any more.

According to the rotation adjustment safety seat 100 of the embodiment of the invention, the height of the headrest 2 on the seat body 1 is adjusted by arranging the height adjustment structure 4, the rotation adjustment safety seat 100 is simple in overall structure and low in processing cost, the height of the headrest 2 can be adjusted by pulling the headrest 2 or the operating part 41 up and down, and the headrest 2 can be well clamped on the seat body 1 when the pulling is stopped, so that the height adjustment of the headrest 2 is very convenient.

Specifically, as shown in fig. 2 to 4, the seat back 12 is provided with a plurality of spaced guide grooves 13, and the fixing portion 42 is provided with a plurality of guide blocks 421 respectively fitted in the plurality of guide grooves 13. The guide function of the guide blocks 421 can make the headrest 2 stressed in the horizontal direction evenly, and the sliding is stable during the height adjustment.

In some embodiments, as shown in fig. 2 to 4, two guide grooves 13 are provided on the seat back 12, which are spaced apart from each other left and right, and both sides of each guide groove 13 in the outer side surface S2 of the seat back 12 are sliding surfaces, each of which is provided with a plurality of slots 14, which are spaced apart from each other uniformly in the up-down direction. As shown in fig. 3, two vertically extending guide grooves 13 are provided on the seat back 12, and three vertically arranged card slot rows, each including a plurality of card slots 14 extending in the transverse direction, are also provided on the seat back 12.

In this embodiment, the plurality of card slots 14 in each card slot column are parallel to each other, and the plurality of card slots 14 in three card slot columns are arranged in a one-to-one correspondence manner, that is, the heights of three card slots 14 in the same row are the same.

In some embodiments, as shown in fig. 2 and 3, the operation portion 41 is fixedly connected to the back surface of the headrest 2, the operation portion 41 is formed in a long straight plate shape, a handle 412 is provided at the top end of the operation portion 41, and a slide slot 411 is formed at the bottom end of the operation portion 41. Thus, when the height of the headrest 2 is adjusted, the handle 412 can be pulled up and down directly, and the operation is easier.

Specifically, as shown in fig. 3, when the seat back 12 is provided with a plurality of guide slots 13, the operating portion 41 may be provided with a slide slot 411 corresponding to each guide slot 13, and the adjusting portion 43 may be provided with a plurality of posts 432 and a plurality of elastic members 433 corresponding to the plurality of slide slots 411. Therefore, when the height of the headrest 2 is adjusted, the headrest 2 is stressed uniformly in the horizontal direction and moves stably.

In the embodiment shown in fig. 4, the bottom of the operation portion 41 may be provided with two sliding slots 411, specifically, the bottom of the operation portion 41 is formed with a square block, sliding slots 411 are formed on the left and right sides of the square block, the sliding slot 411 on the left side is open on the left side, and the sliding slot 411 on the right side is open on the right side.

As shown in fig. 3, the headrest 2 is provided with a fixing groove 21 on a side facing the seatback 12, and the operation portion 41 is provided in the fixing groove 21. Thus, the operation portion 41 does not interfere with the sliding of the headrest 2.

Specifically, as shown in fig. 2 and 3, the height-adjusting structure 4 further includes a sliding cover 44, the sliding cover 44 covers the fixing groove 21, and the sliding cover 44 is located between the operation portion 41 and the seat back 12. As can be seen from fig. 3, the surface of the slide cover 44 facing the seat back 12 is a smooth surface, and the arrangement of the slide cover 44 can reduce the friction between the operation portion 41 and the seat back 12 when the headrest 2 is adjusted, so that the height adjustment of the headrest 2 is more labor-saving.

In some embodiments, as shown in fig. 2-4, the adjustment portion 43 includes: a clamping rod 431, a convex column 432, an elastic piece 433 and a roller 434. One or more convex columns 432 are provided, and each convex column 432 is provided with an elastic member 433 and a roller 434.

The clamping rod 431 can be a long straight round rod, the vertical cross sections of all the clamping grooves 14 on the seat body 1 are semicircular, and the radius of the clamping rod 431 is equal to that of the vertical cross sections of the clamping grooves 14.

Specifically, as shown in fig. 4, the boss 432 has a boss 435 formed at an end thereof remote from the headrest 2, and the boss 435 is detachably fitted over the catch rod 431, so that the assembly of the adjustment part 43 can be facilitated.

More specifically, as shown in fig. 4, the other end of the protruding pillar 432 is provided with a roller 434, that is, the roller 434 is disposed at the end of the protruding pillar 432 extending into the sliding slot 411, so that when the headrest 2 is adjusted up and down, the roller 434 can slide along the lower surface F2 or the upper surface F1 of the sliding slot 411, and the arrangement of the roller 434 can convert the sliding friction between the protruding pillar 432 and the surface of the sliding slot 411 into rolling friction, so that the height adjustment of the headrest 2 can be smoother and more labor-saving.

In some embodiments, as shown in fig. 4 and 2, the guide block 421 has a through guide hole 423, and the protruding pillar 432 is telescopically disposed in the guide hole 423. This limits the range of movement of the adjustment portion 43 relative to the fixed portion 42, and ensures that the boss 432 of the adjustment portion 43 extends and contracts in the direction in which the guide hole 423 extends when the headrest 2 moves up and down, thereby improving the structural reliability of the adjustment of the headrest 2.

Specifically, the elastic member 433 is a spring, the spring is disposed in the guide hole 423 and sleeved on the stud 432, one end of the spring abuts against the guide block 421, and the other end of the spring abuts against the stud 432. The spring is sleeved on the convex column 432 and drives the convex column 432 to move, so that on one hand, the elastic piece 433 can be prevented from falling off from the convex column 432, and on the other hand, the elastic force of the elastic piece 433 is large and stable, and the structural reliability of the adjusting part 43 is high.

More specifically, as shown in fig. 4 and 3, the upper end of each guide block 421 on the fixing portion 42 exceeds the upper end of the sliding plate 422, a notch 424 is formed on the side of the upper end of the guide block 421 away from the headrest 2, the clamping rod 431 of the adjusting portion 43 is clamped in the notch 424, and the vertical section of the notch 424 is circular arc. The vertical section of the shaft sleeve 435 is circular, the shaft sleeve 435 is positioned in the gap 424, and the shaft sleeve 435 can be stably positioned in the gap 424 without being skewed and locked no matter the convex column 432 is loosened or tightened by the elastic member 433.

As shown in fig. 4, the guide block 421 is provided with a guide hole 423 at a position corresponding to the notch 424, and the guide hole 423 penetrates the guide block 421 in a direction toward the headrest 2. The guide hole 423 includes a large hole section and a small hole section (not shown), a portion of the guide hole 423 away from the headrest 2 is the small hole section, a portion of the guide hole 423 adjacent to the headrest 2 is the large hole section, and a step is defined between the large hole section and the small hole section. The spring is disposed in the large hole section, one end of the spring is abutted against the step, and the other end of the spring is abutted against the end of the convex column 432 where the roller 434 is disposed.

In some embodiments, as shown in fig. 6 and 7, the base 3 of the rotation-adjustable safety seat 100 is provided with a circular rotation hole 30, the rotation-adjustable safety seat 100 further comprises a seat adjusting mechanism 5, the seat adjusting mechanism 5 comprises a rotation disc 51, the rotation disc 51 is rotatably provided in the rotation hole 30, the seat body 1 is provided on the rotation disc 51, and the rotating component between the seat body 1 and the base 3 only comprises the rotation disc 51.

It can be understood that, if the seat body can rotate relative to the base in the existing rotation adjustment safety seat, a rotating shaft is arranged between the seat body and the base. The rotating shaft is thin, the sectional area of the rotating shaft is usually less than one tenth of the area of the seat body, the torque and the bending moment born by the thin rotating shaft are too large, and the rotating shaft is easy to bend or deform, so that the seat body is easy to block and cannot rotate.

The rotary shaft is arranged on the rotary adjusting safety seat, and the rotary disc is arranged above the rotary shaft.

In the embodiment of the invention, the turntable 51 is arranged between the seat body 1 and the base 3, the section area of the turntable 51 is more than or equal to one tenth of the area of the seat 11, the turntable 51 has large area and strong bearing capacity, the turntable 51 is not easy to damage and incline or block, the rotation is stable, and the reliability is high. And because the section area of carousel 51 is great, the machining precision requirement is lower to can reduce the processing cost.

In some embodiments of the present invention, the cross-sectional area of the rotating disc 51 is about 1/5-1/3 of the projected area of the seat 11 in the horizontal plane, and preferably, the cross-sectional area of the rotating disc 51 is 1/4 of the projected area of the seat 11 in the horizontal plane. Here, the cross-sectional area of the turntable 51 refers to the area of the turntable 51 in a cross-section perpendicular to its axis of rotation.

In some embodiments, as shown in fig. 8, the base 3 comprises: the upper base 31 and the lower base 32, the lower base 32 covers the bottom of the upper base 31, and a mounting space is defined between the upper base 31 and the lower base 32. The hollow shell structure can reduce the weight of the base 3 and the material processing cost.

Specifically, as shown in fig. 8, the rotation hole 30 is provided on the upper case 31, a bottom end of the rotation plate 51 is protruded into the installation space, and a part of the bottom end of the rotation plate 51 is supported on the lower case 32.

It should be noted that, in the prior art, when the seat body is connected to the base through the rotating shaft, the contact stress at the joint of the rotating shaft and the base is large, and a special shaft seat needs to be arranged on the base, or a bearing needs to be connected between the rotating shaft and the base. But the arrangement of the bearing increases the number of parts, and the base has a complex structure at the bearing installation position, so that the cost is increased.

In the embodiment of the present invention, since the section area of the turntable 51 is large, and the extrusion stress at the connection between the turntable 51 and the base 3 is small, the turntable 51 can be directly placed on the base 3, which not only saves the number of parts, but also simplifies the seat structure, which is a great advantage of the rotation adjustment safety seat 100 of the embodiment of the present invention.

Specifically, as shown in fig. 8, the base 3 further includes a suspension plate 34, the suspension plate 34 is disposed in the installation space, a suspension space is defined between the suspension plate 34 and the upper case 31, and a part of the edge of the turntable 51 is sandwiched in the suspension space. Therefore, the turntable 51 is equivalent to a part of supporting force provided by the lower bottom shell 32 and the other part of supporting force provided by the upper bottom shell 31, and after the supporting force on the turntable 51 is dispersed, the improvement of the overall supporting stability is facilitated.

In some embodiments, as shown in fig. 8, the turntable 51 is provided with a stopper 511, and the stopper 511 is disposed in the installation space and stopped on the upper bottom case 31.

Specifically, an annular stopper 511 is disposed on an outer peripheral edge of the rotary disk 51, the rotary disk 51 extends into the rotary hole 30 from a lower portion of the upper bottom shell 31, and then the rotary disk 51 is locked on the upper bottom shell 31 by the stopper 511, so that the rotary disk 51 is prevented from being completely removed from the upper bottom shell 31.

In some embodiments, as shown in fig. 7, the base 3 is provided with a plurality of first gear holes 36 arranged around the turntable 51.

As shown in fig. 6, the seat adjusting mechanism 5 further includes: a pulling plate 52 and a gear position maintaining elastic piece 53, the pulling plate 52 is arranged between the seat body 1 and the rotating disc 51, as shown in fig. 9 and 6, the pulling plate 52 is provided with a connecting end P1 and a pulling end P2, the connecting end P1 is connected with the seat body 1, the pulling end P2 is provided with a latch 521, the pulling end P2 can move up and down between the seat body 1 and the rotating disc 51, the latch 521 can be driven to be inserted into the first gear position hole 36 when the pulling end P2 moves downwards, and the latch 521 can be driven to be pulled out when the pulling end P2 moves upwards. The shift position maintaining elastic piece 53 is provided between the seat body 1 and the pulling end P2 to normally drive the pulling end P2 to move downward. Here, "normal" refers to a normal state, and "normally driven" means that the shift position maintaining elastic member 53 has a tendency to push the pulling plate 52 in a certain direction at all times.

Thus, when the seat body 1 needs to be rotated by an angle, the pulling end P2 of the pulling plate 52 can be pulled upwards, so that the latch 521 on the pulling end P2 is pulled out of one first gear hole 36 on the base 3, and then the pulling end P2 is pulled, so that the whole seat body 1 can be driven to rotate to adjust the angle. When the seat body 1 is adjusted to a desired angle, the pulling end P2 can be released, the pulling end P2 moves downward under the action of the gear position maintaining elastic piece 53, and the pulling end P2 drives the latch 521 to be inserted into another first gear position hole 36. The latch 521 is not easily released from the first shift position hole 36 by the elastic force of the shift position maintaining elastic member 53, so that the seat body 1 can maintain the angular state.

It can be understood that the plurality of first gear holes 36 on the base 3 are located on the rotation track of the latch 521, so that the latch 521 can be inserted into and positioned in the appropriate first gear hole 36 when the seat body 1 rotates.

In fig. 9, only one latch 521 is disposed on the pulling plate 52, but in other embodiments, a plurality of latches 521 may be disposed on the pulling plate 52, and the positions of the plurality of first gear holes 36 on the base 3 are adapted to the positions of the plurality of first gear holes 521.

Specifically, as shown in fig. 9 and 6, the pulling plate 52 is provided with a retaining block 522, the retaining block 522 may be in a cross shape, the shift position maintaining elastic member 53 may be a spring, a bottom end of the spring is sleeved on the retaining block 522, and an upper end of the spring is stopped against the seat 11 of the seat body 1.

Further, as shown in fig. 6, the bottom of the seat body 1 is provided with the first latch 15 and the second latch 16, as shown in fig. 9 and 6, the pull plate 52 is provided with the insertion block 523 that is clamped between the first latch 15 and the second latch 16, so that when the pull plate 52 is pulled and pushed, the seat body 1 can be adjusted in a front-back angle. The pulling plate 52 is detachably connected to the seat body 1, and can be easily rotated to adjust the attachment and detachment of the safety seat 100.

In some embodiments, as shown in fig. 1, the seat body 1 is provided with a slide rail 17, as shown in fig. 6, the seat adjusting mechanism 5 further includes a slide block 54, the slide block 54 is provided on the rotary table 51, and the seat body 1 is slidably provided on the rotary table 51 through the cooperation of the slide block 54 and the slide rail 17. The position of the seat body 1 relative to the rotary disc 51 can be adjusted, so that the seat body 1 can be adjusted in more diversified directions and is more comfortable to use.

Specifically, as shown in the figures, the seat 11 of the seat body 1 has a certain curvature, the slide rail 17 extends along the length direction of the seat body 1, and when the slide block 54 slides relative to the slide rail 17, the inclination angle of the backrest of the seat body 1 can be adjusted, so that the child can use the seat more comfortably and safely.

Specifically, as shown in fig. 7, the second shift hole 38 is provided on the base 3 or the rotary plate 51, and the latch 521 on the pulling plate 52 can be switched between the first shift hole 36 and the second shift hole 38 when the seat body 1 slides.

Thus, when the seat body 1 needs to be adjusted, the latch 521 can be switched between the plurality of first shift holes 36, the latch 521 can also be switched between the first shift holes 36 and the second shift holes 38, and when the number of the second shift holes 38 is multiple, the latch 521 can also be switched between the plurality of second shift holes 38.

If the second shift hole 38 and one of the first shift holes 36 are located on the same straight line parallel to the extending direction of the slide rail 17, when the latch 521 is latched into the first shift hole 36, the pulling end P2 of the pulling plate 52 can be pulled upwards, so that the latch 521 on the pulling end P2 is pulled out of the first shift hole 36, and then the pulling end P2 is pulled along the extending direction of the slide rail 17, so as to drive the whole seat body 1 to slide and adjust the position thereof. When the seat body 1 is adjusted to a desired position, the pulling end P2 can be released, the pulling end P2 moves downward under the action of the gear position maintaining elastic piece 53, and the pulling end P2 drives the latch 521 to be inserted into the second gear position hole 38. The latch 521 is not easily released from the second shift position hole 38 by the elastic force of the shift position maintaining elastic member 53, so that the seat body 1 can maintain the position state.

It is understood that one or more second gear holes 38 may be formed in the base 3 or the turntable 51, and the second gear holes 38 are located on the moving track of the latch 521, so that the latch 521 can be inserted into the appropriate second gear hole 38 and positioned when the seat body 1 slides.

Specifically, the seat body 1 is provided with a through groove penetrating in the thickness direction to constitute the slide rail 17, and the slider 54 is caught in the through groove. The slide rail 17 and the slide block 54 arranged in this way have simple structure and lower manufacturing cost.

Specifically, as shown in fig. 6, the slider 54 is formed in a long strip shape, the cross section of the slider 54 in the direction perpendicular to the longitudinal direction is T-shaped, and the seat body 1 is provided with a through groove in a long strip shape, and the cross section of the through groove in the direction perpendicular to the longitudinal direction is T-shaped to fit the slider 54.

Specifically, as shown in fig. 6 and 7, the base 3 is provided with a limiting groove 37 for limiting the sliding range of the second latch 16, and the limiting groove 37 can limit the sliding range of the seat body 1 relative to the base 3, so as to avoid the phenomenon of jamming caused by an excessively large sliding range.

The structure of the swivel adjustable safety seat 100 in one embodiment is described below in conjunction with fig. 1-9.

As shown in fig. 1, the rotation-adjustment safety seat 100 includes a headrest 2, a seat body 1, and a base 3.

As shown in fig. 1 to 4, the swivel-adjustment safety seat 100 further includes a height-adjustment structure 4, the height-adjustment structure 4 including an operation portion 41, an adjustment portion 43, and a fixing portion 42; the headrest 2 is fixedly connected with the operation part 41 and the fixing part 42, and the adjusting part 43 is arranged in the fixing part 42 in a telescopic way; the back of the seat body 1 is provided with a plurality of mutually parallel clamping grooves 14.

The handle 412 is provided at the upper end of the operation portion 41, and the slide slot 411 is provided at the lower end.

The adjusting portion 43 includes a laterally extending catch 431, a boss 432, a roller 434, and a spring; one end of the convex column 432 is a shaft sleeve 435, the other end is connected with a roller 434, a spring is sleeved in the convex column 432 and then extends into the convex column 432 and is connected with a concave hole at the end of the roller, and a clamping rod 431 penetrates through the shaft sleeve 435 and is clamped with the clamping groove 14 in a matching mode.

The fixing portion 42 is provided with a through guide hole 423, and the convex post 432 of the adjusting portion 43 passes through the guide hole 423 to match with the sliding slot 411 at the lower end of the operating portion 41.

The lifting principle of the headrest 2 is as follows: when the handle 412 pulling the upper end of the operation portion 41 is lifted or pressed down, the roller 434 can move along the upper slope or the lower slope of the sliding slot 411 at the lower end of the operation portion 41, so as to extrude the spring, push the protruding column 432 to drive the blocking rod 431 to disengage from the blocking slot 14, and when the headrest 2 is lifted or pressed down to a proper height, the blocking rod 431 is blocked with the blocking slot 14 again. The adjustment of the headrest 2 can be achieved only by the upward or downward pushing without an additional operation.

As shown in fig. 6 to 9, a seat adjusting mechanism 5 is provided between the base 3 and the seat body 1, and the seat adjusting mechanism 5 includes: a dial 51, a pull plate 52 and a spring.

The turntable 51 is sleeved in the middle of the base 3, so that the seat body 1 can rotate relative to the base 3 without a rotating shaft, and the sliding friction is realized.

The turntable 51 is provided with a T-shaped convex column 432, a pulling plate 52 and a spring; the lower end of the pulling plate 52 is provided with a clamping bolt 521; the rear side of the upper surface of the base 3 is provided with a limit groove 37.

The surface of the base 3 is provided with a plurality of first gear holes 36, and the first gear holes 36 are disposed on the motion track of the latch 521.

The bottom of the seat body 1 is provided with an arc-shaped through groove, a first fixture block 15 and a second fixture block 16; the arc-shaped through groove is sleeved on the T-shaped sliding block 54 and can slide along the T-shaped sliding block 54, and the seat body 1 can rotate along with the turntable 51; the second latch 16 is engaged with the limiting groove 37, so that the pulling plate 52 drives the seat body 1 to slide along the sliding block 54 when moving back and forth, and the pulling plate cannot exceed the range limited by the limiting groove 37 when sliding back.

The seat gear adjusting principle is as follows: when the gear needs to be adjusted, the pulling end P2 of the pulling plate 52 is pressed upwards, the latch 521 at the lower end of the pulling plate 52 is disengaged from the first gear hole 36 or the second gear hole 38 on the base 3, the pulling plate 52 is pulled back and forth to a proper position by rotating or pulling, so that the latch 521 latches the first gear hole 36 or the second gear hole 38 at a corresponding position, and after the hand is released, the position of the pulling plate 52 is fixed under the elastic force of the spring.

In this embodiment, four first shift holes 36 are symmetrically disposed on a circular track of rotation of the latch 521, and two second shift holes 38 opposite to one first shift hole 36 are disposed on a back-and-forth movement track of the latch 521.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "length," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings and are used merely for convenience in describing the invention and for simplicity in description and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A swivel-adjustable safety seat, comprising:

the chair comprises a chair body, wherein the chair body comprises a chair seat and a chair back, the chair back is provided with an inner side surface and an outer side surface, the chair back is provided with a guide groove which is communicated in the thickness direction, and the outer side surface of the chair back is provided with a plurality of clamping grooves which are vertically arranged;

the headrest is arranged on the inner side surface of the chair back;

a height-adjustment structure, the height-adjustment structure comprising:

the operating part is connected with the headrest, a sliding groove is formed in one side, facing the outer side face of the chair back, of the operating part, and the upper surface and the lower surface of the sliding groove extend away from each other in the direction facing the outer side face of the chair back;

the fixing part comprises a sliding plate and a guide block, the guide block is arranged on one side, facing the headrest, of the sliding plate, the guide block is inserted into the guide groove and connected with the headrest, and the sliding plate vertically slides along the guide groove;

an adjusting portion movably provided on the fixing portion, the adjusting portion including: the clamping rod is clamped in the clamping grooves on two sides of the guide groove, the convex column penetrates through the guide groove and is inserted into the sliding groove, and the elastic piece is used for driving the convex column to move towards the headrest;

the base is provided with a rotating hole;

a seat adjustment mechanism, the seat adjustment mechanism comprising: the seat comprises a seat body, a base, a rotary plate, a pull plate and a clamping bolt, wherein the rotary plate is rotatably arranged in the rotary hole, the seat body is arranged on the rotary plate, a rotating part between the seat body and the base only comprises the rotary plate, the pull plate is arranged between the seat body and the rotary plate and is provided with a connecting end and a pulling end, the connecting end is connected with the seat body, the pulling end is provided with the clamping bolt, the pulling end can move up and down between the seat body and the rotary plate, the clamping bolt can be driven to be inserted into a limiting part on the rotary plate when the pulling end moves downwards, and the clamping bolt can be driven to be pulled out when the pulling end moves upwards.

2. The swivel adjustable safety seat according to claim 1, wherein the adjustment portion further comprises a roller provided at an end of the boss protruding into the sliding groove.

3. The rotary adjustable safety seat according to claim 1, wherein the fixing portion has a guide hole therethrough, and the stud is telescopically received in the guide hole.

4. The rotationally adjustable safety seat according to claim 1, wherein an end of the boss remote from the headrest forms a bushing that removably fits over the latch lever.

5. The swivel-adjustable safety seat according to claim 3, wherein the seat back is provided with a plurality of spaced-apart guide grooves, and the fixing portion is provided with a plurality of guide blocks respectively fitted in the plurality of guide grooves.

6. The swivel-adjustable safety seat according to claim 5, wherein the operating portion is provided with the slide groove corresponding to each of the guide grooves, and the adjusting portion includes a plurality of the projections and an elastic member corresponding to the plurality of the slide grooves.

7. The swivel-adjustable safety seat according to claim 1, wherein the top end of the operating portion is provided with a handle, and the sliding groove is formed at the bottom end of the operating portion.

8. The swivel-adjustable safety seat according to claim 1, wherein the headrest has a fixing groove at a side facing the seat back, the operation portion is disposed in the fixing groove, the height-adjusting structure further comprises a sliding cover covering the fixing groove, and the sliding cover is disposed between the operation portion and the seat back.

9. The rotary adjustable safety seat according to claim 8, wherein the limiting portion is a plurality of first gear holes disposed around the turntable on the base;

the seat adjusting mechanism comprises a gear position maintaining elastic piece, and the gear position maintaining elastic piece is arranged between the seat body and the pulling end to drive the pulling end to move downwards.