CN112109793A - Child seat - Google Patents
Child seat Download PDFInfo
- Publication number
- CN112109793A CN112109793A CN202011117280.6A CN202011117280A CN112109793A CN 112109793 A CN112109793 A CN 112109793A CN 202011117280 A CN202011117280 A CN 202011117280A CN 112109793 A CN112109793 A CN 112109793A
- Authority
- CN
- China
- Prior art keywords
- backrest
- frame
- gear
- cushion
- cushion frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
- B62B9/104—Perambulator bodies; Equipment therefor characterized by details of the seat with adjustable or reclining backrests
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a child seat, which comprises a fixed seat assembled with a frame, a cushion frame rotationally connected with the fixed seat and a backrest frame rotationally connected with the fixed seat, wherein when the cushion frame is in an open state, the limiting structure of the fixed seat limits the cushion frame downwards, the cushion frame is prevented from continuously overturning downwards and only overturning upwards, a locking mechanism capable of locking and positioning the cushion frame and the fixed seat is arranged between the backrest frame and the fixed seat, and an unlocking structure capable of unlocking the locking mechanism is arranged on the cushion frame; the folding backrest frame is simple in structure and convenient to operate, and when the child seat needs to be folded, the backrest frame and the fixed seat can be automatically unlocked by turning up the cushion frame.
Description
Technical Field
The invention relates to the field of children's appliances, in particular to a child seat.
Background
The existing child seats are various in types, but in order to facilitate storage, the child seats are in an opening state and a folding state. The child seat generally includes a fixed seat mounted and fixed on the frame, a seat cushion frame and a backrest frame capable of rotating relative to the fixed seat. When the cushion frame of the existing child seat is in an open state, the cushion frame is limited downwards through the limiting structure of the fixing seat, the cushion frame is prevented from continuously overturning downwards, and only upturning can be realized. And a locking mechanism is often arranged between the backrest frame and the fixed seat. When the child seat needs to be folded, the locking of the locking mechanism needs to be manually released, so that the seat cushion frame and the backrest frame can be folded and folded, and the operation is inconvenient.
Disclosure of Invention
The invention aims to: provides a child seat, which can automatically release the locking between a backrest frame and a fixed seat when a cushion frame turns upwards, and has simple structure and convenient operation.
The technical scheme of the invention is as follows: a child seat comprises a fixed seat assembled with a frame, a cushion frame rotationally connected with the fixed seat and a back frame rotationally connected with the fixed seat, wherein when the cushion frame is in an open state, the limiting structure of the fixed seat limits the cushion frame downwards, the cushion frame is prevented from continuously overturning downwards and only overturning upwards, a locking mechanism capable of locking and positioning the cushion frame and the fixed seat is arranged between the back frame and the fixed seat, and an unlocking structure capable of releasing the locking of the locking mechanism is arranged on the cushion frame; when the cushion frame turns upwards from the open state, the unlocking structure of the cushion frame automatically releases the locking of the locking mechanism, and the backrest frame can be folded and folded relative to the cushion frame at the moment.
Furthermore, the locking mechanism comprises a gear which is arranged on the fixed seat and can move axially relative to the fixed seat, a first spring which is arranged between the gear and the fixed seat and can stretch axially, and a backrest locking mechanism which is arranged in the backrest frame and can lock the gear; the unlocking structure of the cushion frame is a guide inclined plane which is formed on the inner hole wall of the cushion connecting ring and can drive the gear to move axially;
when the child seat is in an unfolded use state, the gear is located at a position corresponding to the backrest locking mechanism under the action of the elastic force of the first spring and is locked by the backrest locking mechanism;
when the child seat needs to be folded and folded, the cushion frame is turned upwards, the inclined block of the cushion frame drives the gear to move axially, the backrest locking mechanism is avoided, automatic unlocking is achieved, and the backrest frame can be folded and folded relative to the cushion frame.
Furthermore, the backrest frame bottom is provided with a backrest connecting ring which is rotationally sleeved with the fixing seat, the rear part of the cushion frame is provided with a cushion connecting ring which is rotationally sleeved with the fixing seat, and an inner hole of the backrest connecting ring is a wheel groove which can be used for accommodating the gear and can rotate relative to the gear.
Furthermore, an interlocking part capable of moving axially is arranged between the gear and the cushion connecting ring, an inclined lug matched with the inclined surface of the inclined block is formed on the interlocking part in an extending mode, and when the cushion frame turns upwards, the inclined block is matched with the inclined surface of the inclined lug to drive the interlocking part to move axially and push the gear.
Further, the periphery of the gear is provided with a plurality of gear teeth for clamping the backrest locking mechanism; the backrest locking mechanism realizes the adjustment of a plurality of angles of the backrest frame by locking different gear teeth of the gear.
Furthermore, the backrest locking mechanism comprises a locking block which is arranged at the lower part of the inner side of the backrest rod of the backrest frame and can extend into the race locking gear, a second spring which is arranged between the locking block and the backrest frame, an unlocking operation piece which is arranged at the upper part of the backrest frame, and a traction lock which is connected between the unlocking operation piece and the locking block;
when the backrest frame is in a locked use state, the locking block tightly clamps the gear teeth corresponding to the gear under the elastic force action of the second spring, so that the backrest angle positioning is realized;
when the angle of the backrest needs to be adjusted, the unlocking operation piece is operated, the traction lock is pulled upwards by the unlocking operation piece, and the locking block is driven to overcome the elastic force of the second spring to withdraw from the gear, so that unlocking is realized; at the moment, the backrest frame is rotated to a required angle, the locking block can be reset by loosening the unlocking operation piece, the corresponding gear teeth of the gear are locked again, and new backrest angle positioning is realized.
Further, the fixed seat comprises an inner seat body and an outer seat body which are fixedly connected, a sleeving part is formed between the inner seat body and the outer seat body, the cushion connecting ring and the backrest connecting ring are sequentially sleeved outside the sleeving part from inside to outside, and a cross rod is connected between the inner seat bodies on the two sides; the gear and the linkage piece are also sleeved outside the sleeving part and are positioned in the backrest connecting ring.
Furthermore, the outer side wall of the outer seat body is provided with a socket matched with the socket of the frame, and an installation locking mechanism for locking the socket is arranged in the outer seat body.
Furthermore, the lower part of the inner seat body is provided with a limiting block extending into an inner hole of the cushion connecting ring, and the inner wall of the cushion connecting ring is provided with a limiting boss corresponding to the limiting block; when the cushion frame is in an open state, the limiting boss abuts against the front side of the limiting block, the cushion frame is prevented from continuing to turn downwards, and only upturning can be realized.
The invention has the advantages that:
1. when the foldable seat cushion frame needs to be folded, the seat cushion frame is turned upwards, the guide inclined plane of the seat cushion frame drives the gear shaft to move axially, the backrest locking mechanism is avoided, automatic unlocking is realized, and the backrest frame can be folded relative to the seat cushion frame; the whole structure is simple, and the operation is convenient.
2. When the backrest angle needs to be adjusted, the gear is unlocked by the unlocking operation piece, the backrest locking mechanism can reset by only rotating the backrest frame to a required angle and loosening the unlocking operation piece, the corresponding gear teeth of the gear are locked again, new backrest angle positioning is realized, and the adjustment operation is very convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention in use;
FIGS. 2, 3 and 4 are schematic views of an assembly structure of the cushion frame, the backrest frame and the fixing seat according to the present invention;
fig. 5 is a schematic view of the present invention in a folded state.
Wherein: 1, fixing a base; 1-1 inner seat body; 1-1-1 limiting block; 1-2 outer seat bodies; 1-2-1 interface; 1-3 a socket joint part;
2 a cushion frame; 2-1 cushion connecting ring; 2-1-1 guide inclined plane; 2-1-2 limiting bosses;
3 a backrest frame; 3-1, a backrest connecting ring; 3-1-1 wheel groove;
4, gears; 4-1 gear teeth;
5 a first spring;
6 a backrest locking mechanism; 6-1 locking block; 6-2 second spring; 6-3 unlocking the operating member; 6-4, a traction lock;
7, a linkage piece; 7-1 oblique projection;
and 8, a cross bar.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions employed in the examples may be further adjusted according to specific conditions, and the conditions not specified are generally conditions in routine experiments.
As shown in fig. 1 to 5, a child seat includes a fixed seat 1 for being assembled with a vehicle frame, a seat cushion frame 2 rotatably connected to the fixed seat 1, and a back rest frame 3 rotatably connected to the fixed seat 1, when the seat cushion frame 2 is in an open state, a limiting structure of the fixed seat 1 limits the seat cushion frame 2 downward to prevent the seat cushion frame 2 from continuously turning downward and only turning upward, a locking mechanism capable of locking and positioning the back rest frame 3 and the fixed seat 1 is arranged between the seat cushion frame 2 and the fixed seat, and an unlocking structure capable of releasing the locking of the locking mechanism is arranged on the seat cushion frame 2; when the cushion frame 2 is turned upwards from the open state, the unlocking structure of the cushion frame 2 automatically releases the locking of the locking mechanism, and the backrest frame 3 can be folded and folded relative to the cushion frame 2.
In this embodiment, the specific structure of the locking mechanism is as follows: locking mechanism is including setting up on the fixing base 1 and can be relative its axial displacement's gear 4, install but gear 4 and fixing base 1 between and the first spring 5 of axial expansion and contraction and set up in the back frame 3 and can lock the back locking mechanical system 6 of gear 4.
In this embodiment, the unlocking structure of the cushion frame 2 is a guide inclined plane 2-1-1 formed on the inner hole wall of the cushion connecting ring 2-1 and capable of driving the gear 4 to move axially.
In this embodiment, the specific rotation installation mode between the backrest frame 3, the seat cushion frame 2 and the fixing seat 1 is as follows: the bottom of the backrest frame 3 is provided with a backrest connecting ring 3-1 which is rotatably sleeved with the fixed seat 1, and the rear part of the cushion frame 2 is provided with a cushion connecting ring 2-1 which is rotatably sleeved with the fixed seat 1.
In order to facilitate the installation of the gear 4 and the locking of the gear 4 by the backrest locking mechanism, the inner hole of the backrest connecting ring 3-1 is a wheel groove 3-1-1 which can be accommodated by the gear 4 and can rotate relative to the gear 4.
In this embodiment, an interlocking member 7 capable of moving axially is arranged between the gear 4 and the cushion connecting ring 2-1, an inclined protrusion 7-1 matched with the inclined surface of the inclined block 2-1-1 is formed on the interlocking member 7 in an extending manner, and when the cushion frame 2 is turned up, the inclined block 2-1-1 and the inclined surface of the inclined protrusion 7-1 are matched to drive the interlocking member 7 to move axially and push the gear 4.
In order to adjust the front and back angle of the backrest frame during use, the periphery of the gear 4 is provided with a plurality of gear teeth 4-1 for clamping a backrest locking mechanism 6; the backrest locking mechanism 6 realizes the adjustment of a plurality of angles of the backrest frame by locking different gear teeth 4-1 of the gear 4.
In this embodiment, the backrest locking mechanism 6 has the following specific structure: the backrest locking mechanism 6 comprises a locking block 6-1 which is arranged at the lower part of the inner side of the backrest rod of the backrest frame 3 and can extend into the locking gear 4 of the wheel groove 3-1-1, a second spring 6-2 which is arranged between the locking block 6-1 and the backrest frame 3, an unlocking operation part 6-3 which is arranged at the upper part of the backrest frame 3, and a traction lock 6-4 which is connected between the unlocking operation part 6-3 and the locking block 6-1.
In this embodiment, the specific structure of the fixing base 1 is as follows: the fixed seat 1 comprises an inner seat body 1-1 and an outer seat body 1-2 which are fixedly connected, a sleeve joint part 1-3 is formed between the inner seat body 1-1 and the outer seat body 1-2, the cushion connecting ring 2-1 and the backrest connecting ring 3-1 are sequentially sleeved outside the sleeve joint part 1-3 from inside to outside, and a cross rod 8 is connected between the inner seat bodies 1-1 on the two sides; the gear 4 and the linkage part 7 are also sleeved outside the sleeve joint part 1-3 and are positioned in the backrest connecting ring 3-1.
In order to facilitate the assembly with the frame, the outer side wall of the outer seat body 1-2 is provided with a socket 1-2-1 matched with the socket of the frame, and an installation locking mechanism for locking the socket is arranged in the outer seat body 1-2.
In this embodiment, the specific limit structure between the fixing seat 1 and the seat cushion frame 2 is: the lower part of the inner seat body 1-1 is provided with a limiting block 1-1-1 extending into an inner hole of a seat cushion connecting ring 2-1, and the inner wall of the seat cushion connecting ring 2-1 is provided with a limiting boss 2-1-2 corresponding to the limiting block 1-1-1; when the cushion frame 2 is in an open state, the limiting boss 2-1-2 abuts against the front side of the limiting block 1-1-1, so that the cushion frame 2 is prevented from continuously turning downwards and can only be turned upwards.
The folding principle of the invention is as follows:
when the child seat is in an unfolded use state, the gear 4 is positioned in the wheel groove 3-1-1 corresponding to the position of the backrest locking mechanism 6 under the action of the elastic force of the first spring 5 and is locked by the backrest locking mechanism 6;
when the child seat needs to be folded, the cushion frame 2 is turned upwards, the guide inclined plane 2-1-1 of the cushion frame 2 drives the gear 4 to axially move to avoid the backrest locking mechanism 6, automatic unlocking is realized, and the backrest frame 3 can be folded relative to the cushion frame 2.
The angle adjusting principle of the backrest frame of the invention is as follows:
when the backrest frame 3 is in a locked use state, the locking block 6-1 tightly clamps the gear teeth 4-1 corresponding to the gear 4 under the action of the elastic force of the second spring 6-2, so that the backrest angle positioning is realized;
when the angle of the backrest needs to be adjusted, the unlocking operation piece is operated, the traction lock is pulled up by the unlocking operation piece, and the locking block 6-1 is driven to overcome the elastic force of the second spring 6-2 and withdraw from the gear 4, so that unlocking is realized; at the moment, the backrest frame 3 is rotated to a required angle, the locking block 6-1 can be reset by loosening the unlocking operation piece 6-3, the corresponding gear teeth 4-1 of the gear 4 are locked again, and new backrest angle positioning is realized.
The invention has simple structure and convenient operation. When the child seat needs to be folded, the backrest frame and the fixed seat can be automatically unlocked by turning up the cushion frame; when the backrest angle of the child seat needs to be adjusted, the backrest frame and the fixed seat can be unlocked by operating the unlocking operation piece, and the backrest angle is adjusted.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the present invention.
Claims (9)
1. The utility model provides a child seat, including be used for with fixing base (1) of frame assembly, rotate cushion frame (2) of being connected and rotate back frame (3) of being connected with fixing base (1), when cushion frame (2) are in the open mode, the limit structure of fixing base (1) realizes decurrent spacing to cushion frame (2), prevents cushion frame (2) to continue to overturn downwards and only can realize upturning, its characterized in that: a locking mechanism capable of locking and positioning the backrest frame (3) and the fixed seat (1) is arranged between the backrest frame and the fixed seat, and an unlocking structure capable of unlocking the locking mechanism is arranged on the cushion frame (2); when the cushion frame (2) is turned upwards from an open state, the unlocking structure of the cushion frame (2) automatically releases the locking of the locking mechanism, and the backrest frame (3) can be folded and folded relative to the cushion frame (2).
2. A child seat according to claim 1, wherein: the locking mechanism comprises a gear (4) which is arranged on the fixed seat (1) and can move axially relative to the fixed seat, a first spring (5) which is arranged between the gear (4) and the fixed seat (1) and can axially extend and retract, and a backrest locking mechanism (6) which is arranged in the backrest frame (3) and can lock the gear (4); the unlocking structure of the cushion frame (2) is a guide inclined plane (2-1-1) which is formed on the inner hole wall of the cushion connecting ring (2-1) and can drive the gear (4) to axially move;
when the child seat is in a unfolded use state, the gear (4) is located at a position corresponding to the backrest locking mechanism (6) under the action of the elastic force of the first spring (5) and is locked by the backrest locking mechanism (6);
when the child seat needs to be folded, the cushion frame (2) is turned upwards, the guide inclined plane (2-1-1) of the cushion frame (2) drives the gear (4) to axially move to avoid the backrest locking mechanism (6), automatic unlocking is achieved, and the backrest frame (3) can be folded relative to the cushion frame (2).
3. A child seat according to claim 2, wherein: the backrest is characterized in that a backrest connecting ring (3-1) rotatably sleeved with the fixing seat (1) is arranged at the bottom of the backrest frame (3), a cushion connecting ring (2-1) rotatably sleeved with the fixing seat (1) is arranged at the rear part of the cushion frame (2), and an inner hole of the backrest connecting ring (3-1) is a wheel groove (3-1-1) which can be used for accommodating the gear (4) and can rotate relative to the gear (4).
4. A child seat according to claim 3, wherein: an axial-movable linkage part (7) is arranged between the gear (4) and the cushion connecting ring (2-1), an inclined bump (7-1) matched with the inclined surface of the guide inclined surface (2-1-1) is formed on the linkage part (7), and when the cushion frame (2) turns upwards, the guide inclined surface (2-1-1) is matched with the inclined bump (7-1) to drive the linkage part (7) to move axially and push the gear (4).
5. A child seat according to claim 3, wherein: the periphery of the gear (4) is provided with a plurality of gear teeth (4-1) for clamping the backrest locking mechanism (6); the backrest locking mechanism (6) realizes the adjustment of a plurality of angles of the backrest frame by locking different gear teeth (4-1) of the gear (4).
6. A child seat according to claim 3 or 5, wherein: the backrest locking mechanism (6) comprises a locking block (6-1) which is arranged at the lower part of the inner side of a backrest rod of the backrest frame (3) and can extend into the wheel groove (3-1-1) and the locking gear (4), a second spring (6-2) which is arranged between the locking block (6-1) and the backrest frame (3), an unlocking operation piece (6-3) which is arranged at the upper part of the backrest frame (3), and a traction lock (6-4) which is connected between the unlocking operation piece (6-3) and the locking block (6-1);
when the backrest frame (3) is in a locked use state, the locking block (6-1) tightly clamps the gear teeth (4-1) corresponding to the gear (4) under the action of the elastic force of the second spring (6-2), so that the backrest angle positioning is realized;
when the angle of the backrest needs to be adjusted, the unlocking operation piece (6-3) is operated, the unlocking operation piece (6-3) pulls the traction lock (6-4) upwards, and the locking block (6-1) is driven to overcome the elastic force of the second spring (6-2) to withdraw from the gear (4), so that unlocking is realized; at the moment, the backrest frame (3) is rotated to a required angle, the lock block (6-1) can be reset by loosening the unlocking operation piece (6-3), the corresponding gear teeth (4-1) of the gear (4) are locked again, and new backrest angle positioning is realized.
7. A child seat according to claim 3, wherein: the fixing seat (1) comprises an inner seat body (1-1) and an outer seat body (1-2) which are fixedly connected, a sleeving part (1-3) is formed between the inner seat body (1-1) and the outer seat body (1-2), the cushion connecting ring (2-1) and the backrest connecting ring (3-1) are sequentially sleeved outside the sleeving part (1-3) from inside to outside, and a cross rod (8) is connected between the inner seat bodies (1-1) on the two sides; the gear (4) and the linkage piece (7) are also sleeved outside the sleeve joint part (1-3) and are positioned in the backrest connecting ring (3-1).
8. A child seat according to claim 7, wherein: the outer side wall of the outer seat body (1-2) is provided with a socket (1-2-1) matched with the socket of the frame, and an installation locking mechanism for locking the socket is arranged in the outer seat body (1-2).
9. A child seat according to claim 7, wherein: the lower part of the inner seat body (1-1) is provided with a limiting block (1-1-1) extending into an inner hole of the cushion connecting ring (2-1), and the inner wall of the cushion connecting ring (2-1) is provided with a limiting boss (2-1-2) corresponding to the limiting block (1-1-1); when the cushion frame (2) is in an open state, the limiting boss (2-1-2) abuts against the front side of the limiting block (1-1-1), so that the cushion frame (2) is prevented from continuously turning downwards and can only be turned upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117280.6A CN112109793A (en) | 2020-10-19 | 2020-10-19 | Child seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117280.6A CN112109793A (en) | 2020-10-19 | 2020-10-19 | Child seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112109793A true CN112109793A (en) | 2020-12-22 |
Family
ID=73794817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011117280.6A Pending CN112109793A (en) | 2020-10-19 | 2020-10-19 | Child seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112109793A (en) |
-
2020
- 2020-10-19 CN CN202011117280.6A patent/CN112109793A/en active Pending
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