CN113771704B

CN113771704B - Integrated electric child seat

Info

Publication number: CN113771704B
Application number: CN202110979224.1A
Authority: CN
Inventors: 邹宝义; 陈建锋; 刘奕文; 唐慎玉; 罗捷
Original assignee: Hunan University Aisheng Auto Technology Development Co ltd
Current assignee: Hunan University Aisheng Auto Technology Development Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-11-04
Anticipated expiration: 2041-08-25
Also published as: CN113771704A

Abstract

The invention provides an integrated electric child seat, which comprises an independent angle-adjustable electric headrest, a reversible lifting electric armrest and an electric cushion, wherein the height of the electric cushion can be controlled, and the integrated electric child seat is characterized in that: the electric headrest and the electric armrests are part of the backrest of the chair, are symmetrical left and right and are positioned on two sides of the backrest; the electric cushion is a part of the seat cushion and is positioned in the front of the seat cushion; when the child seat is used, the electric headrest, the electric armrests and the electric cushion can be unfolded simultaneously or independently, and are embedded into the seat when not used. This scheme can realize unfolding children's headrest, handrail from conventional back, and the state of unfolding children's cushion from conventional cushion satisfies children and uses, and this scheme can also realize the multistage regulation of headrest, handrail, cushion, satisfies the children of different heights/weight and takes.

Description

Integrated electric child seat

Technical Field

The invention relates to a child seat, in particular to an integrated electric child seat.

Background

GB 14166-2013 seat belts for motor vehicle occupants, restraint systems, child restraint systems and ISOFIX child restraint systems, GB 14167-2013 vehicle seat belt attachment points, ISOFIX attachment point systems and pull-up strap attachment points specify that vehicles of class M1, N1 must be equipped with child seat attachment points.

Currently, there are two types of child seats on the market, namely, stand-alone and integrated child seats. Wherein, the independent child seat that stands alone is fixed on former car seat through utilizing former car fixed point installation to reach the use purpose. The integrated child seat is combined with an original vehicle seat into a whole, is unfolded during use, and is respectively unfolded into a child headrest and an armrest through a seat backrest and a special cushion for children through lifting of a cushion. When not in use, the seat is retracted, the seat is not different from a conventional seat, and the integrated child seats on the market are all mechanically adjusted.

Problems with freestanding child seats: the use frequency is low, and the occupied space is large. The children before school age are low in outgoing probability, short in distance and small in moving radius, and the children seat is in an idle state for a long time through a subway, a public bus, a light rail or a walk and the like which account for a large proportion. The child seat is generally large in size to ensure the wrapping property, is equivalent to the upper body of an adult, basically occupies one seat, and also occupies a considerable proportion of space when a trunk is disassembled, and particularly has no margin for the most huge compact-class vehicle models in China. In addition, the independent child seat is heavy and difficult to disassemble and assemble. The weight of the child seat is between 10 and 15kg, the child seat is difficult to carry, disassemble and assemble for most economical passenger cars, and particularly for female users, the child seat is poor in usability due to small inherent strength. The adaptability is poor. A single child seat cannot be used for all child applications, and generally a rear-facing or basket-type child seat is required at the age of 0-1 (0-9 kg), a front-facing child seat is required at the age of 2-8 (12-25 kg), and a single booster pad is more suitable for use at the age of 9-12 (28-40 kg). The child seat is required to be filled with filler due to the wrapping property, so that the seat is small in sitting space, a child is squeezed, and the repelling mind is easily generated.

Problems with mechanically integrated child seats: it is inconvenient to use. When in use or recovery, the headrest, the armrests and the cushion need to be respectively and manually unfolded/retracted. The adaptability is poor, and the position is fixed after the unfolding, so the folding chair is not suitable for children with different heights. The price is high. The price of a vehicle partially provided with the integrated child seat reaches 15 thousands, and the foreign-resource brand is between 30 thousands and millions.

Disclosure of Invention

In order to solve the above problems, the present invention provides a technical solution for realizing an integratable electric child seat, which can realize the functions of conversion from a conventional seat to a child seat, electric control, multi-stage adjustment, one-key deployment and reset. The integrated electric child seat scheme is composed of a headrest capable of being turned over and adjusting the angle, armrests capable of being turned over and lifted and a liftable seat cushion. The electronic control system is used for compiling logic to control the electronic control system respectively, and each part can be independently adjusted or can be set to a certain state to carry out one-key conversion/restoration.

The technical scheme of the invention provides an integrated electric child seat, which is characterized in that: the electric seat comprises an independent electric headrest with an adjustable angle, electric armrests capable of being turned and lifted, and an electric seat cushion capable of being lifted and controlling the height, wherein the electric headrest and the electric armrests are part of a seat backrest, are bilaterally symmetrical and are positioned on two sides of the backrest; the electric cushion is a part of the seat cushion and is positioned at the front part of the seat cushion; when the child seat is used, the electric headrest, the electric armrests and the electric cushion can be unfolded simultaneously or independently, and are embedded into the seat when not used.

Further, the electric headrest comprises a first driving motor, a first sliding rack, a second sliding rack, a first connecting rod, a second connecting rod, a first headrest and a second headrest;

the first driving motor drives the first sliding rack and the second sliding rack to move reversely through the first worm gear;

the first sliding rack and the second sliding rack are respectively connected with the first connecting rod and the second connecting rod through a first sliding bearing and a second sliding bearing, and the first connecting rod and the second connecting rod are connected with the first headrest and the second headrest through a first hinge and a second hinge;

the first sliding rack and the second sliding rack push the first connecting rod and the second connecting rod under the driving of the first worm gear and the second worm gear, the first headrest and the second headrest are supported to achieve outward turnover of the headrests, and the first worm gear and the second worm gear are locked by the self-locking characteristic of the first worm gear and the second worm gear.

Furthermore, the electric handrail comprises a second driving motor, a gear set, a first pull cable, a second pull cable, a sliding rail, a third sliding rack, a fourth sliding rack, hobbing and a handrail;

the slide rails, the third slide rack, the fourth slide rack, the hobbing and the handrails are arranged in two groups respectively and bilaterally symmetrical around the central plane of the seat;

the second driving motor drives the first winch through the second worm gear and the second worm, the first winch drives the second inhaul cable, and the second inhaul cable drives the third sliding racks on the left side and the right side;

the second driving motor drives a second winch through a first transmission gear and a second transmission gear or a third transmission gear and a fourth transmission gear, the second winch drives a first inhaul cable, and the first inhaul cable drives fourth sliding racks on the left side and the right side; the third sliding rack and the fourth sliding rack are meshed with the gear hobbing which is connected with the handrail, so that the rotation and lifting movement of the handrail are realized.

Further, the second transmission gear and the third transmission gear are controlled to be meshed and released through the first electromagnet, the second electromagnet, the first spring and the second spring.

When the first electromagnet is powered on and the second electromagnet is powered off, the second transmission gear is loosened with the gear of the second winch under the suction force of the first electromagnet, the third transmission gear is meshed with the gear of the second winch under the elastic force of the second spring, the first pull cable and the second pull cable move in a reverse constant speed mode, the third sliding rack and the fourth sliding rack move in a reverse constant speed mode under the traction of the pull cables, and the armrest rotation adjustment is achieved through forward rotation and reverse rotation of the motor;

when the first electromagnet is powered off and the second electromagnet is powered on, the second transmission gear is meshed with the gear of the second winch under the elastic force of the first spring, the third transmission gear is loosened from the gear of the second winch under the suction force of the second electromagnet, the first pull cable and the second pull cable move at the same direction and the same speed, the third sliding rack and the fourth sliding rack move at the same direction and the same speed under the traction of the pull cables, and the handrail lifting adjustment is realized through the forward rotation and the reverse rotation of the motor.

Further, the second driving motor is fixed to the third support and the fourth support through bolts, the third support and the fourth support are welded to the slide rail, and the slide rail serves as a part of the seat back framework.

Furthermore, the electric cushion motion part comprises a third driving motor, a crank, a third connecting rod and an electric cushion, the third driving motor is fixed on the seat framework, the third driving motor drives the crank to rotate around a third hinge through a third worm gear, the cushion framework, the crank, the third connecting rod and the cushion form a parallelogram crank-connecting rod mechanism, and the cushion is driven by the motor to lift;

furthermore, the seat is suitable for independent seats, long-strip seats, seats with five or six minutes seats of the original vehicle.

The invention has the beneficial effects that:

(1) The angle-adjustable headrest is an original seat backrest part, is driven by a motor to turn outwards, plays a role in supporting the left side and the right side of the head, and can improve the comfort of a human machine while improving the safety. The turnable/liftable handrail is a back side wing part of the original seat, the handrail can be turned by the rotary motion driven by an electric appliance, the height of the handrail can be adjusted by the height motion, the requirement of human bodies with different heights on the height of the handrail can be met, and the riding comfort is greatly improved. The liftable seat cushion is the front end part of the original vehicle seat cushion, and the seat cushion is driven by a motor and can be lifted to adapt to children with different heights to sit.

(2) This scheme can realize unfolding children's headrest, handrail from conventional back, and the state of unfolding children's cushion from conventional cushion satisfies children and uses.

(3) The scheme can realize the multi-stage adjustment of the headrest, the armrests and the cushion, and the riding of children with different heights/weights is met.

(4) The scheme can realize the electric adjusting function of the child seat, and the child seat can be unfolded/reset by one key;

(5) The scheme can realize the mutual matching of the child seat and the conventional seat, and ensure the appearance and normal use of the conventional seat.

Drawings

FIG. 1 is a schematic overview of an integrated power child seat of an embodiment;

FIG. 2 is a schematic view of a headrest structure of the integrated power child seat;

FIG. 3 is a schematic view of a headrest structure of the integrated power child seat;

FIG. 4 is a schematic view of an armrest configuration of the integrated power child seat;

FIG. 5 is a schematic view of an armrest configuration of the integrated power child seat;

FIG. 6 is a schematic view of a cushion structure of an integrated power child seat;

FIG. 7 is a schematic diagram of the movement of the cable when the first electromagnet is energized and the second electromagnet is de-energized;

FIG. 8 is a schematic diagram of the movement of the cable when the first electromagnet is de-energized and the second electromagnet is energized;

fig. 9 is a schematic view of a portion of the electric seat cushion movement;

wherein: 1-seat, 2-seat back, 3-electric headrest, 4-electric armrest, 5-seat cushion, 6-electric cushion, 7-first drive motor, 8-first sliding rack, 9-second sliding rack, 10-first link, 11-second link, 12-first headrest, 13-second headrest, 14-first bracket, 15-second bracket, 16-first bolt, 17-second bolt, 18-third bolt, 19-backrest frame, 20-first worm gear, 23-first sliding bearing, 24-second sliding bearing, 25-first hinge, 26-second hinge, 27-second drive motor, 28-gear set, 29-first cable, 30-a second cable, 31-a slide rail, 32-a third slide rack, 33-a fourth slide rack, 34-a hobbing, 35-a handrail, 36-a first third support, 37-a fourth support, 38-a second worm gear, 39-a first winch, 40-a first transmission gear, 41-a second transmission gear, 42-a third transmission gear, 43-a fourth transmission gear, 44-a second spring, 45-a third connecting rod, 46-a third driving motor, 47-a cushion framework, 48-a second winch, 49-a third hinge, 50-a first electromagnet, 51-a second electromagnet, 52-a first spring, 53-a crank, and 54-a third worm gear.

Detailed description of the preferred embodiments

The technical scheme of the invention is explained in detail in the following with reference to the attached drawings 1-5.

As shown in fig. 1, the present embodiment provides an integrated electric child seat, which includes a single electric headrest 3 with adjustable angle, a reversible electric armrest 4, and an electric seat cushion 6 with lifting and height control, wherein the electric headrest 3 and the electric armrest 4 are part of a seat back 2, and are bilaterally symmetrical and located on two sides of the back. The power seat cushion 6 is a part of the seat cushion 5, and is located in front of the seat cushion 5. When the child seat is used, the electric headrest 3, the electric armrests 4 and the electric cushion 6 can be unfolded simultaneously or independently, and are embedded in the seat 1 when not used.

As shown in fig. 2-3, the electric headrest includes a first driving motor 7, a first sliding rack 8, a second sliding rack 9, a first link 10, a second link 11, a first headrest 12, and a second headrest 13;

the first drive motor 7 is fixed to a back frame 19 by a first bolt 16, a second bolt 17, and a third bolt 18 via a first bracket 14 and a second bracket 15.

The first driving motor 7 drives the first sliding rack 8 and the second sliding rack 9 to move in opposite directions through the first worm gear 20. The first sliding rack 8 and the second sliding rack 9 are respectively connected with the first connecting rod 10 and the second connecting rod 11 through a first sliding bearing 23 and a second sliding bearing 24, and the first connecting rod 10 and the second connecting rod 11 are connected with the first headrest 12 and the second headrest 13 through a first hinge 25 and a second hinge 26.

The first sliding rack 8 and the second sliding rack 9 push the first connecting rod 10 and the second connecting rod 11 under the driving of the first worm gear 20, the first headrest 12 and the second headrest 13 are supported to enable the headrests to turn outwards, and the first worm gear 20 locks the first headrest 12 and the second headrest 13 by the self-locking characteristic and stops at any angle.

The angle adjustment of the first headrest 12 and the second headrest 13 is realized by controlling the forward rotation and the reverse rotation of the first drive motor 7.

As shown in fig. 4, the electric handrail includes a second driving motor 27, a gear set 28, a first cable 29, a second cable 30, a slide rail 31, a third slide rack 32, a fourth slide rack 33, a gear hobbing 34, and a handrail 35.

The slide rail 31, the third slide rack 32, the fourth slide rack 33, the hobbing 34 and the armrest 35 are arranged in two groups in bilateral symmetry with the central plane of the seat.

The second driving motor 27 is fixed to the third bracket 36 and the fourth bracket 37 by bolts, the third bracket 36 and the fourth bracket 37 are welded to the slide rail 31, and the slide rail 31 may be a part of the seat back frame.

As shown in fig. 5-8, the second driving motor 27 drives the first capstan 39 on one hand, the first capstan 39 drives the second cable 30, and the second cable 30 drives the third sliding racks 32 on the left and right sides through the second worm gear 38;

the second driving motor 27 drives the second capstan 48 through another transmission path by the first transmission gear 40, the second transmission gear 41 or the third transmission gear 42, the fourth transmission gear 43, the second capstan 48 drives the first cable 29, and the first cable 29 drives the fourth sliding racks 33 on the left and right sides. The third and fourth sliding

racks

32 and 33 are engaged with the gear hobbing 34, and the gear hobbing 34 is connected with the handrail, thereby realizing the rotation and lifting movement of the handrail.

As shown in fig. 6, the second transmission gear 41 and the third transmission gear 42 can be controlled to be engaged and disengaged by the first electromagnet 50, the second electromagnet 51, the first spring 52 and the second spring 44.

As shown in fig. 6 and 7, when the first electromagnet 50 is energized and the second electromagnet 51 is de-energized, the second transmission gear 41 is disengaged from the gear of the second capstan 48 under the attraction of the first electromagnet 50, the third transmission gear 42 is engaged with the gear of the second capstan 48 under the elastic force of the second spring 44, the first cable 29 and the second cable 30 move in a reverse direction and at a constant speed, the third sliding rack 32 and the fourth sliding rack 33 move in a reverse direction and at a constant speed under the traction of the cables, and at this time, the armrest rotation adjustment can be realized through the forward rotation and reverse rotation of the motor;

as shown in fig. 6 and 8, when the first electromagnet 50 is powered off and the second electromagnet 51 is powered on, the second transmission gear 41 is engaged with the gear of the second winch 48 under the elastic force of the first spring 52, the third transmission gear 42 is released from the gear of the second winch 48 under the suction force of the second electromagnet 51, the first cable 29 and the second cable 30 move in the same direction and at the same speed, the third sliding rack 32 and the fourth sliding rack 33 move in the same direction and at the same speed under the traction of the cables, and at this time, the handrail lifting adjustment can be realized through the forward rotation and the reverse rotation of the motor.

As shown in fig. 9, the electric seat cushion movement part includes a third drive motor 46, a crank 53, a third link 45, and a seat cushion frame 47. The third drive motor 46 is fixed to the seat cushion frame 47 by bolts. The third drive motor 46 drives the crank to rotate about the third hinge 49 via the third worm gear 54. The cushion framework 47, the crank 53, the third connecting rod 45 and the cushion 6 form a parallelogram crank-connecting rod mechanism, and the lifting motion of the cushion is realized under the driving of the motor.

The integrated electric child seat can be suitable for an original independent seat of a vehicle, or a long-strip seat, a five-fifth-minute seat and a four-sixth-minute seat.

While the present invention has been described with reference to the embodiments, it is to be understood that the description is made only by way of example and not as a limitation to the application of the invention. The scope of the invention is defined by the appended claims and may include various equivalents to the invention patented without departing from the scope and spirit of the invention.

Claims

1. An integrated power child seat, comprising: the seat comprises an independent electric headrest (3) with an adjustable angle, electric armrests (4) capable of turning and lifting and an electric cushion (6) capable of lifting and controlling the height, wherein the electric headrest (3) and the electric armrests (4) are part of a seat backrest (2), are bilaterally symmetrical and are positioned on two sides of the backrest; the electric seat cushion (6) is a part of the seat cushion (5) and is positioned at the front part of the seat cushion (5); when the child seat is used, the electric headrest (3), the electric armrests (4) and the electric cushion (6) can be unfolded simultaneously or independently, and are embedded into the seat (1) when not used;

the electric handrail comprises a second driving motor (27), a gear set (28), a first cable (29), a second cable (30), a sliding rail (31), a third sliding rack (32), a fourth sliding rack (33), a gear hobbing (34) and a handrail (35);

the sliding rails (31), the third sliding rack (32), the fourth sliding rack (33), the hobbing (34) and the handrails (35) are arranged in two groups in bilateral symmetry with the central plane of the seat respectively;

the second driving motor (27) drives a first winch (39) through a second worm gear (38), the first winch (39) drives a second inhaul cable (30), and the second inhaul cable (30) drives third sliding racks (32) on the left side and the right side;

the second driving motor (27) drives a second winch (48) through a first transmission gear (40), a second transmission gear (41) or a third transmission gear (42) and a fourth transmission gear (43), the second winch (48) drives a first inhaul cable (29), and the first inhaul cable (29) drives fourth sliding racks (33) on the left side and the right side; the third sliding rack (32) and the fourth sliding rack (33) are meshed with the hobbing (34), and the hobbing (34) is connected with the handrail, so that the rotation and lifting movement of the handrail are realized;

the second transmission gear (41) and the third transmission gear (42) are controlled to be meshed with and released from a second winch (48) through a first electromagnet (50), a second electromagnet (51), a first spring (52) and a second spring (44);

when the first electromagnet (50) is electrified and the second electromagnet (51) is powered off, the second transmission gear (41) is loosened from a gear of the second winch (48) under the suction force of the first electromagnet (50), the third transmission gear (42) is meshed with the gear of the second winch (48) under the elastic force of the second spring (44), the first pull cable (29) and the second pull cable (30) do reverse constant-speed motion, the third sliding rack (32) and the fourth sliding rack (33) do reverse constant-speed motion under the traction of the pull cables, and the rotation adjustment of the handrail is realized through the forward rotation and the reverse rotation of the motor;

when the first electromagnet (50) is powered off and the second electromagnet (51) is powered on, the second transmission gear (41) is meshed with the gear of the second winch (48) under the elastic force of the first spring (52), the third transmission gear (42) is loosened from the gear of the second winch (48) under the suction force of the second electromagnet (51), the first cable (29) and the second cable (30) move in the same direction and at the same speed, the third sliding rack (32) and the fourth sliding rack (33) move in the same direction and at the same speed under the traction of the cables, and the handrail lifting adjustment is realized through the forward rotation and the reverse rotation of the motor.

2. The integrated power child seat according to claim 1, wherein: the electric headrest comprises a first driving motor (7), a first sliding rack (8), a second sliding rack (9), a first connecting rod (10), a second connecting rod (11), a first headrest (12) and a second headrest (13);

the first driving motor (7) drives the first sliding rack (8) and the second sliding rack (9) to move in opposite directions through the first worm gear (20);

the first sliding rack (8) and the second sliding rack (9) are respectively connected with the first connecting rod (10) and the second connecting rod (11) through a first sliding bearing (23) and a second sliding bearing (24), and the first connecting rod (10) and the second connecting rod (11) are connected with the first headrest (12) and the second headrest (13) through a first hinge (25) and a second hinge (26);

the first sliding rack (8) and the second sliding rack (9) push the first connecting rod (10) and the second connecting rod (11) under the driving of the first worm gear (20), the first headrest (12) and the second headrest (13) are supported to realize outward turnover of the headrests, and the first worm gear (20) locks the first headrest (12) and the second headrest (13) due to the self-locking characteristic.

3. The integrated power child seat according to claim 1, wherein: the second driving motor (27) is fixed to the third support (36) and the fourth support (37) through bolts, the third support (36) and the fourth support (37) are welded with the sliding rail (31), and the sliding rail (31) serves as a part of a seat back framework.

4. The integrated power child seat according to claim 1, wherein: the electric cushion motion part comprises a third driving motor (46), a crank (53), a third connecting rod (45) and a cushion framework (47), the third driving motor (46) is fixed on the cushion framework (47), the third driving motor (46) drives the crank to rotate around a third hinge (49) through a third worm gear (54), the cushion framework (47), the crank (53), the third connecting rod (45) and the electric cushion (6) form a crank-connecting rod mechanism of a parallelogram, and the electric cushion is driven by the motor to move up and down.