CN115257481B - Child car safety seat - Google Patents
Child car safety seat Download PDFInfo
- Publication number
- CN115257481B CN115257481B CN202210823715.1A CN202210823715A CN115257481B CN 115257481 B CN115257481 B CN 115257481B CN 202210823715 A CN202210823715 A CN 202210823715A CN 115257481 B CN115257481 B CN 115257481B
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- arc
- connecting rod
- seat body
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- screw
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- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 20
- 230000036544 posture Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2869—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle rotatable about a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2821—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a child car safety seat, comprising: a base; the middle connecting piece is arranged above the base and is provided with an arc-shaped upper receiving surface protruding downwards; the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with an arc-shaped lower bottom surface which is downwards protruded and is positioned above the arc-shaped upper receiving surface, the seat body is connected with the middle connecting piece in a sliding manner along the arc-shaped direction, and the inclination angle of the seat body relative to the base is adjusted; a motor; a screw rod in transmission connection with the motor; the nut is sleeved on the screw rod and matched with the screw thread; a connecting rod with one end pivotally connected with the nut through a rotating shaft on the connecting rod; one of the seat body and the middle connecting piece is fixedly connected with the motor, and the other is pivotally connected with the other end part of the connecting rod through a lower rotating shaft of the connecting rod; when the motor drives the screw rod to rotate, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to swing, so that the seat body slides along the arc direction relative to the middle connecting piece. The child car safety seat is simple in structure, convenient to adjust and convenient to operate.
Description
Technical Field
The invention belongs to the field of children products, and particularly relates to a child car safety seat.
Background
Child safety seats are becoming increasingly popular as a safety tool for children to ride on automobiles. Child safety seats generally include a base for supporting an automobile seat and a seat body disposed on the base for seating a child. The seat body can be arranged on the base in a relatively sliding manner, so that the seat body and the base form different angles of matching postures, and then different sitting postures or lying postures can be realized when children sit on the child safety seat. However, the existing structure is not convenient for realizing the angle adjustment between the seat body and the base, especially the smooth front-back pitching adjustment, and even if the similar pitching adjustment can be realized through other structures, the structure is not convenient and stable enough. The angle adjustment between the seat body and the base is an important adjustment mode for improving riding comfort when children ride the automobile, so that a novel child safety seat is needed, and any angle adjustment of the seat body relative to the base in a limited range can be simply and conveniently realized.
Disclosure of Invention
The invention aims to provide a child car safety seat, which can randomly adjust the rotation angle and meet the functional requirement of rotation adjustment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a child car safety seat comprising:
A base;
The middle connecting piece is arranged above the base, is pivotally connected with the base and is provided with an arc-shaped upper receiving surface protruding downwards;
the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with a downward-protruding arc-shaped lower bottom surface, the arc-shaped lower bottom surface is positioned above the arc-shaped upper receiving surface, and the seat body is slidably connected with the middle connecting piece along the arc direction and is used for adjusting the inclination angle of the seat body relative to the base; the child car safety seat also comprises
The motor is fixedly arranged on the seat body and is provided with a motor output rotating shaft;
The screw rod is in transmission connection with the output rotating shaft of the motor;
The nut is sleeved on the screw rod and is in threaded fit connection with the screw rod;
One end part of the connecting rod is in pivot connection with the nut through a first rotating shaft of the connecting rod, and the other end part of the connecting rod is in pivot connection with the middle connecting piece through a second rotating shaft of the connecting rod;
When the motor drives the screw rod to rotate, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to swing, so that the seat body slides along the arc direction relative to the middle connecting piece.
Preferably, the screw is fixedly connected to the output rotating shaft of the motor in a coaxial manner.
Preferably, the middle connecting piece is provided with an arc-shaped guide groove, the arc-shaped guide groove is provided with a front limit retaining wall and a rear limit retaining wall, the seat body is fixedly provided with a guide pin, and the guide pin is inserted into the guide groove; when the motor drives the screw rod to rotate, the guide pin slides between the front limit blocking wall and the rear limit blocking wall along the arc-shaped guide groove.
Further preferably, the number of the arc-shaped guide grooves is two, namely a front arc-shaped guide groove and a rear arc-shaped guide groove, the number of the guide pins is also two, namely a front guide pin and a rear guide pin, the front guide pin is inserted into the front arc-shaped guide groove, and the rear guide pin is inserted into the rear arc-shaped guide groove.
Preferably, the nut is fixed with a first lug protruding radially, the upper end of the connecting rod is pivotally connected with the first lug through a first rotating shaft of the connecting rod, and the lower end of the connecting rod is pivotally connected with the rear part of the middle connecting piece through a second rotating shaft of the connecting rod.
The invention aims to provide a child car safety seat, which can randomly adjust the rotation angle and meet the functional requirement of rotation adjustment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a child car safety seat comprising:
A base;
The middle connecting piece is arranged above the base, is pivotally connected with the base and is provided with an arc-shaped upper receiving surface protruding downwards;
the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with a downward-protruding arc-shaped lower bottom surface, the arc-shaped lower bottom surface is positioned above the arc-shaped upper receiving surface, and the seat body is slidably connected with the middle connecting piece along the arc direction and is used for adjusting the inclination angle of the seat body relative to the base; the child car safety seat also comprises
The motor is fixedly arranged on the middle connecting piece and is provided with a motor output rotating shaft;
The screw rod is in transmission connection with the output rotating shaft of the motor;
The nut is sleeved on the screw rod and is in threaded fit connection with the screw rod;
One end part of the connecting rod is pivotally connected with the nut through a first rotating shaft of the connecting rod, and the other end part of the connecting rod is pivotally connected with the seat body through a second rotating shaft of the connecting rod;
When the motor drives the screw rod to rotate, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to swing, so that the seat body slides along the arc direction relative to the middle connecting piece.
Preferably, the screw is fixedly connected to the output rotating shaft of the motor in a coaxial manner.
Preferably, the middle connecting piece is provided with an arc-shaped guide groove, the arc-shaped guide groove is provided with a front limit retaining wall and a rear limit retaining wall, the seat body is fixedly provided with a guide pin, and the guide pin is inserted into the guide groove; when the motor drives the screw rod to rotate, the guide pin slides between the front limit blocking wall and the rear limit blocking wall along the arc-shaped guide groove.
Further preferably, the number of the arc-shaped guide grooves is two, namely a front arc-shaped guide groove and a rear arc-shaped guide groove, the number of the guide pins is also two, namely a front guide pin and a rear guide pin, the front guide pin is inserted into the front arc-shaped guide groove, and the rear guide pin is inserted into the rear arc-shaped guide groove.
Preferably, the nut is fixed with a first lug protruding radially, the lower end of the connecting rod is pivotally connected with the first lug through a first rotating shaft of the connecting rod, and the upper end of the connecting rod is pivotally connected with the seat body through a second rotating shaft of the connecting rod.
The invention aims to provide a child car safety seat, which can randomly adjust the rotation angle and meet the functional requirement of rotation adjustment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a child car safety seat comprising:
A base;
The middle connecting piece is arranged above the base, is pivotally connected with the base and is provided with an arc-shaped upper receiving surface protruding downwards;
the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with a downward-protruding arc-shaped lower bottom surface, the arc-shaped lower bottom surface is positioned above the arc-shaped upper receiving surface, and the seat body is slidably connected with the middle connecting piece along the arc direction and is used for adjusting the inclination angle of the seat body relative to the base; the child car safety seat also comprises
The motor is fixedly arranged on the seat body;
The nut is in driving connection with the motor;
the screw is sleeved with the nut and is in threaded fit connection with the screw;
One end part of the connecting rod is in pivot connection with the screw rod through a first rotating shaft of the connecting rod, and the other end part of the connecting rod is in pivot connection with the middle connecting piece through a second rotating shaft of the connecting rod;
When the motor drives the nut to rotate, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to swing, so that the seat body slides along the arc direction relative to the middle connecting piece.
Preferably, the middle connecting piece is provided with an arc-shaped guide groove, the arc-shaped guide groove is provided with a front limit retaining wall and a rear limit retaining wall, the seat body is fixedly provided with a guide pin, and the guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin slides between the front limit blocking wall and the rear limit blocking wall along the arc-shaped guide groove.
Further preferably, the number of the arc-shaped guide grooves is two, namely a front arc-shaped guide groove and a rear arc-shaped guide groove, the number of the guide pins is also two, namely a front guide pin and a rear guide pin, the front guide pin is inserted into the front arc-shaped guide groove, and the rear guide pin is inserted into the rear arc-shaped guide groove.
Preferably, the screw is provided with a radially protruding second lug, the position of the second lug relative to the screw in the axial direction of the screw is kept unchanged, the upper end of the connecting rod is pivotally connected with the second lug through a first rotating shaft of the connecting rod, and the lower end of the connecting rod is pivotally connected with the rear part of the intermediate connecting piece through a second rotating shaft of the connecting rod.
The invention aims to provide a child car safety seat, which can randomly adjust the rotation angle and meet the functional requirement of rotation adjustment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a child car safety seat comprising:
A base;
The middle connecting piece is arranged above the base, is pivotally connected with the base and is provided with an arc-shaped upper receiving surface protruding downwards;
the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with a downward-protruding arc-shaped lower bottom surface, the arc-shaped lower bottom surface is positioned above the arc-shaped upper receiving surface, and the seat body is slidably connected with the middle connecting piece along the arc direction and is used for adjusting the inclination angle of the seat body relative to the base; the child car safety seat also comprises
The motor is fixedly arranged on the middle connecting piece;
The nut is in transmission connection with the output rotating shaft of the motor;
the screw is sleeved with the nut and is in threaded fit connection with the screw;
One end part of the connecting rod is in pivot connection with the screw rod through a first rotating shaft of the connecting rod, and the other end part of the connecting rod is in pivot connection with the seat body through a second rotating shaft of the connecting rod;
When the motor drives the nut to rotate, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to swing, so that the seat body slides along the arc direction relative to the middle connecting piece.
Preferably, the middle connecting piece is provided with an arc-shaped guide groove, the arc-shaped guide groove is provided with a front limit retaining wall and a rear limit retaining wall, the seat body is fixedly provided with a guide pin, and the guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin slides between the front limit blocking wall and the rear limit blocking wall along the arc-shaped guide groove.
Further preferably, the number of the arc-shaped guide grooves is two, namely a front arc-shaped guide groove and a rear arc-shaped guide groove, the number of the guide pins is also two, namely a front guide pin and a rear guide pin, the front guide pin is inserted into the front arc-shaped guide groove, and the rear guide pin is inserted into the rear arc-shaped guide groove.
Preferably, the screw is provided with a radially protruding second lug, the position of the second lug relative to the screw in the axial direction of the screw is kept unchanged, the lower end part of the connecting rod is pivotally connected with the second lug through a first rotating shaft of the connecting rod, and the upper end part of the connecting rod is pivotally connected with the seat body through a second rotating shaft of the connecting rod.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
According to the invention, the motor is used for driving the screw rod to move relative to the nut, so that the motor drives the seat body to move, and then the seat body can be rotationally adjusted relative to the base through the cooperation of the arc-shaped surface between the seat body and the middle connecting piece; because the two ends of the connecting rod are both in pivot connection, the linear movement of the nut relative to the screw rod is converted into the rotary adjustment that the seat body can be attached to the arc surface of the middle connecting piece in a sliding way; meanwhile, the motor, the screw rod and the nut can be matched to realize stepless adjustment of rotation adjustment; the child car safety seat is simple in structure, convenient to adjust the rotation angle and convenient to operate.
Drawings
FIG. 1 is a schematic side view of a child car seat according to a first embodiment;
FIG. 2 is a schematic back view of a child car seat according to the first embodiment;
FIG. 3 is a schematic top view of a child car seat according to the first embodiment in a first state;
FIG. 4 is a schematic cross-sectional view of section A-A of FIG. 3;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
FIG. 6 is an enlarged schematic view of portion C of FIG. 4;
FIG. 7 is an enlarged schematic view of portion D of FIG. 4;
FIG. 8 is a schematic top view of the child car seat according to the first embodiment in a second state;
FIG. 9 is a schematic cross-sectional view of section E-E of FIG. 8;
FIG. 10 is an enlarged schematic view of portion F of FIG. 9;
FIG. 11 is an enlarged schematic view of portion G of FIG. 9;
FIG. 12 is an enlarged schematic view of portion H of FIG. 9;
FIG. 13 is a schematic cross-sectional view of a child safety seat according to the second embodiment in a first state;
FIG. 14 is an enlarged schematic view of section I of FIG. 13;
FIG. 15 is a schematic cross-sectional view of a child safety seat in a first state according to a third embodiment;
FIG. 16 is an enlarged schematic view of portion J of FIG. 15;
FIG. 17 is a schematic cross-sectional view of a child safety seat in a first state according to a fourth embodiment;
fig. 18 is an enlarged schematic view of the portion K of fig. 17.
In the above figures:
1. A base; 2. an intermediate connection; 21. an arc-shaped guide groove; 211. a front limit baffle wall; 212. a rear limit retaining wall; 213. a front arc-shaped guide groove; 214. a rear arc-shaped guide groove; 3. a seat body; 31. a guide pin; 311. a front guide pin; 312. a rear guide pin;
4. A motor; 41. a motor output shaft; 42. a motor mounting bracket; 5. a screw; 51. a screw end sleeve; 52. a screw end sleeve seat; 53. a screw seat fixing frame; 54. a screw end face nut; 55. a second ear; 6. a nut; 61. a first ear; 7. a connecting rod; 71. a connecting rod first rotating shaft; 72. a connecting rod second rotating shaft; 8. a connector; 81. a connector base.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In embodiments of the invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present invention, reference is made to directions such as "front", "rear", "left", "right", "up", "down", etc. in the sense that the directions are observed when a child sits, as in fig. 1, the left direction in the drawing is "front", the right direction in the drawing is "rear", the upper direction in the drawing is "up", the lower direction in the drawing is "down", and directions perpendicular to the viewing angle in the drawing are "left" and "right", and the definition of the above directions is merely for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Embodiment one:
As shown in fig. 1-3 and 8, the child car safety seat comprises a base 1, a middle connecting piece 2 and a seat body 3.
The shape of the intermediate connecting member 2 can be regarded as a boat-like shape, the intermediate connecting member 2 is disposed above the base 1, the intermediate connecting member 2 is pivotally connected to the base 1 via a seat shaft, the intermediate connecting member 2 has an arc-shaped upper receiving surface protruding downward, the seat shaft is not necessarily a solid shaft member, and it is also referred to as a virtual shaft, only that the intermediate connecting member 2 and the base 1 can rotate relative to each other.
The seat body 3 is used for taking children, and seat body 3 at least partially sets up in the top of intermediate junction spare 2, and the bottom of seat body 3 has the arc lower floor of downward bulge, and the arc lower floor is located the top of holding the face on the arc, and seat body 3 is connected with intermediate junction spare 2 along arc direction looks sliding for adjust seat body 3 for the inclination of base 1. When the seat body 3 slides relative to the intermediate link 2 in an arc direction, which is a transition from front to back from bottom to top, the inclination angle of the seat body 3 relative to the base 1 changes.
As shown in fig. 4, 5, 8 and 9, the middle connecting piece 2 is provided with an arc-shaped guide groove 21, the extending direction of the arc-shaped guide groove 21 is the sliding arc direction of the seat body 3, the arc-shaped guide groove 21 is provided with a front limiting baffle wall 211 and a rear limiting baffle wall 212, and in this embodiment, the front limiting baffle wall 211 and the rear limiting baffle wall 212 are respectively positioned at the front end and the rear end of the extending direction of the arc-shaped guide groove 21. The guide pin 31 is fixed on the seat body 3, the guide pin 31 is inserted in the guide groove, and when the seat body 3 slides relative to the intermediate connecting piece 2, the guide pin 31 slides in the guide groove, so that the sliding direction of the seat body 3 relative to the intermediate connecting piece 2 is limited. When the guide pin 31 abuts against the front limit stopper wall 211, the seat is in the first state, and when the guide pin 31 abuts against the rear limit stopper wall 212, the seat is in the second state, and the back of the seat body 3 is closer to the back of the base 1 than the second state.
Specifically, the two arc-shaped guide grooves 21 are respectively a front arc-shaped guide groove 213 and a rear arc-shaped guide groove 214, which are respectively positioned at a front position and a rear position of the middle connecting piece 2, the two guide pins 31 are respectively a front guide pin 311 and a rear guide pin 312, the front guide pin 311 is inserted in the front arc-shaped guide groove 213, the rear guide pin 312 is inserted in the rear arc-shaped guide groove 214, and the two groups of guide pins 31 and the arc-shaped guide grooves 21 are matched to enable the sliding of the seat body 3 to be more stable, enhance the connection stability with the middle connecting piece 2 and avoid the warping of a certain side of the seat body 3.
As shown in fig. 4, 6, 7, 9, 11 and 12, the child car safety seat further comprises a motor 4, a screw 5, a nut 6 and a connecting rod 7, wherein the back of the seat body 3 (the back can be understood as a corresponding position of the back when a child sits) is provided with an accommodating space to set the structure, and by setting the structure, the angle adjustment of the seat body 3 relative to the base 1 is realized, wherein when the motor 4 drives the screw 5 to rotate, the nut 6 moves along the axial line direction of the screw 5 to drive the connecting rod 7 to swing, so that the seat body 3 slides along the arc direction relative to the middle connecting piece 2, and the guide pin 31 slides along the arc guide groove 21 between the front limit blocking wall 211 and the rear limit blocking wall 212; when the motor 4 drives the screw 5 to rotate, only the seat body 3 is driven to slide relative to the middle connecting piece 2, and the middle connecting piece 2 is not driven to move relative to the base 1.
The motor 4 is fixedly arranged on the seat body 3, specifically: the motor 4 is connected to a motor mounting bracket 42, and the motor mounting bracket 42 is fixedly welded to the seat body 3.
The motor 4 has a motor output shaft 41, and in this embodiment, a connecting screw 5 is coaxially fixed to the motor output shaft 41. Specifically, the upper end of the screw 5 is fixed with the motor output rotating shaft 41 through the connector 8, the connector 8 is sleeved on the upper end of the screw 5 and the motor output rotating shaft 41 at the same time, the connector seat 81 is fixedly arranged on the motor mounting bracket 42, and the connector 8 is arranged in the connector seat 81; the lower end of the screw 5 is sleeved with a screw end sleeve 51, the screw end sleeve 51 is arranged on a screw end sleeve seat 52, the screw end sleeve seat 52 is fixedly arranged on a screw seat fixing frame 53, the screw seat fixing frame 53 is fixedly welded on the seat body 3, and the lower end of the screw 5 is further screwed with a screw end nut 54 to limit the screw end sleeve 51 on the screw 5.
The nut 6 is sleeved on the screw 5 and is in threaded fit connection with the screw 5, so that the rotation of the nut 6 relative to the screw 5 can be converted into the movement of the screw 5 along the axial lead direction thereof, and the movement is generated in the arc direction to drive the seat body 3 to move. And at the same time, due to the restriction of the screw end cap 51, the nut 6 is prevented from moving out of the lower end of the screw 5.
One end portion of the link 7 is pivotally connected to the nut 6 through a link first shaft 71, and the other end portion of the link 7 is pivotally connected to the intermediate link 2 through a link second shaft 72. Due to the limitation of the length of the connecting rod 7, the nut 6 cannot generate larger displacement, so that the screw 5 moves along the axial lead direction of the screw 5 relative to the nut 6 when the motor 4 drives, the relative front and rear directions generate angle change when the screw 5 moves due to the mutual structural limitation, but the pivot rotation of the two ends of the connecting rod 7 is utilized, the occurrence of pause and frustration of the combined movement of the screw 5 along the axial lead direction and the rotation of the angle change is avoided, and the sliding of the seat body 3 is smoother. Specifically, the nut 6 is fixed with a radially protruding first ear portion 61, and the upper end portion of the link 7 is pivotally connected to the first ear portion 61 via a link first pivot 71, and the lower end portion of the link 7 is pivotally connected to the rear portion of the intermediate link 2 via a link second pivot 72.
Embodiment two:
The present embodiment is basically the same as the first embodiment, except that the connection positions of the motor 4, the screw 5 and the link 7 are different, but the principle of controlling the movement of the seat body 3 is the same as the first embodiment, and the purpose of the present embodiment is to provide another structure capable of realizing the movement of the seat body 3, as shown in fig. 13 and 14, and the specific structure is as follows with reference to the structure in the drawings related to the first embodiment:
The motor 4 is fixedly arranged on the intermediate connecting piece 2, and specifically comprises: the motor 4 is connected to a motor mounting bracket 42, and the motor mounting bracket 42 is fixedly welded to the intermediate connection member 2.
The motor 4 has a motor output shaft 41, and in this embodiment, a connecting screw 5 is coaxially fixed to the motor output shaft 41. Specifically, the lower end of the screw 5 is fixed to the motor output shaft 41 via the connector 8, the connector 8 is simultaneously fitted over the lower end of the screw 5 and the motor output shaft 41, the connector holder 81 is fixedly provided to the motor mounting bracket 42, and the connector 8 is mounted in the connector holder 81.
One end portion of the link 7 is pivotally connected to the nut 6 through a link first pivot 71, and the other end portion of the link 7 is pivotally connected to the seat body 3 through a link second pivot 72. Because the screw rod 5 is connected with the motor output rotating shaft 41, the motor 4 is connected to the middle connecting piece 2, and therefore, the spatial three-dimensional position of the screw rod 5 relative to the base 1 and the middle connecting piece 2 is basically unchanged, and the nut 6 moves relative to the screw rod 5 to drive the connecting rod 7 to move together, and the connecting rod second rotating shaft 72 is fixed relative to the seat body 3, so that the connecting rod 7 rotates around the connecting rod second rotating shaft 72, the connecting rod 7 rotates while axially moving relative to the screw rod 5 under the structural limitation of each other, the seat body 7 is pushed to move along the arc direction, and the pivot rotation of the two end parts of the connecting rod 7 is utilized, so that the resultant motion of the movement of the screw rod 5 along the axial lead direction and the rotation of the angle change is prevented from generating a pause and a smooth sliding of the seat body 3. Specifically, the nut 6 is fixed with a radially projecting first ear portion 61, the lower end portion of the link 7 is pivotally connected to the first ear portion 61 via a link first pivot 71, and the upper end portion of the link 7 is pivotally connected to the seat body 3 via a link second pivot 72.
Embodiment III:
The present embodiment is basically the same as the first embodiment, except that the connection positions of the motor 4, the screw 5 and the link 7 are different, but the principle of controlling the movement of the seat body 3 is the same as the first embodiment, and the purpose of the present embodiment is to provide another structure capable of realizing the movement of the seat body 3, as shown in fig. 15 and 16, and the specific structure is as follows with reference to the structure in the drawings related to the first embodiment:
in this embodiment, the motor 4 drives the nut 6 to rotate, so that the nut 6 moves along the axial line direction of the screw 5, and the screw 5 drives the connecting rod 7 to swing, so that the seat body 3 slides along the arc direction relative to the intermediate connecting piece 2.
The motor 4 is fixedly arranged on the seat body 3, specifically: the motor 4 is connected to a motor mounting bracket 42, and the motor mounting bracket 42 is fixedly welded to the seat body 3.
The motor 4 is in driving connection with the nut 6, and in this embodiment, the nut 6 is rotatably provided inside the motor 4 around its own axis, or the motor 4 with the nut 6 inside can be used as an equivalent alternative. The screw 5 passes through the motor 4, the nut 6 is sleeved on the screw 5 and is in threaded fit connection with the screw 5, and as the nut 6 is arranged in the motor 4 and is unchanged relative to the space position of the seat body 3, and the screw 5 is connected to the intermediate connecting piece 2 through the connecting rod 7, the movement between the screw 5 and the nut 6 is converted into movement of the nut 6 along the axial line direction of the screw 5 through the rotation of the nut 6 relative to the screw 5, and displacement is generated in the arc direction so as to drive the seat body 3 to move.
One end portion of the link 7 is pivotally connected to the screw 5 through a link first pivot 71, and the other end portion of the link 7 is pivotally connected to the intermediate link 2 through a link second pivot 72. Because the length of the connecting rod 7 is limited, the screw 5 cannot generate larger displacement, so that the nut 6 moves along the axial line direction of the screw 5 relative to the screw 5 when the motor 4 drives the screw 5 to work, the mutual structural limitation causes the screw 5 to swing relative to the front-back direction when the nut 6 moves, and the pivot rotation of the two ends of the connecting rod 7 is utilized, thereby avoiding the movement of the nut 6 along the axial line direction of the screw 5 and the occurrence of the pause of the resultant movement of the rotation of the angle change, and enabling the sliding of the seat body 3 to be smoother. Specifically, a radially protruding second ear 55 is provided on the lower end portion of the screw 5, the position of the second ear 55 in the axial direction of the screw 5 with respect to the screw 5 remains unchanged, the upper end portion of the link 7 is pivotally connected to the second ear 55 via a link first rotation shaft 71, and the lower end portion of the link 7 is pivotally connected to the rear portion of the intermediate link 2 via a link second rotation shaft 72. More preferably, the second ear 55 is fixedly disposed relative to the screw 5.
Embodiment four:
the present embodiment is basically the same as the first embodiment, except that the connection positions of the motor 4, the screw 5 and the link 7 are different, but the principle of controlling the movement of the seat body 3 is the same as the first embodiment, and the purpose of the present embodiment is to provide another structure capable of realizing the movement of the seat body 3, as shown in fig. 17 and 18, and the specific structure is as follows with reference to the structure in the drawings related to the first embodiment:
in this embodiment, the motor 4 drives the nut 6 to rotate, so that the nut 6 moves along the axial line direction of the screw 5, and the screw 5 drives the connecting rod 7 to swing, so that the seat body 3 slides along the arc direction relative to the intermediate connecting piece 2.
The motor 4 is fixedly arranged on the intermediate connecting piece 2, and specifically comprises: the motor 4 is fixed at the rear of the intermediate connection 2.
The motor 4 is in driving connection with the nut 6, and in this embodiment, the nut 6 is rotatably provided inside the motor 4 around its own axis, or the motor 4 with the nut 6 inside can be used as an equivalent alternative. The screw 5 passes through the motor 4, the nut 6 is sleeved on the screw 5 and is in threaded fit connection with the screw 5, and as the nut 6 is arranged in the motor 4 and is in unchanged spatial position relative to the intermediate connecting piece 2, and the screw 5 is connected with the seat body 3 through the connecting rod 7, the movement between the screw 5 and the connecting rod is converted into movement of the screw 5 relative to the nut 6 along the axial line direction of the screw 5 through the rotation of the nut 6 relative to the screw 5, and displacement is generated in the arc direction to drive the seat body 3 to move.
One end portion of the link 7 is pivotally connected to the screw 5 through a link first pivot 71, and the other end portion of the link 7 is pivotally connected to the seat body 3 through a link second pivot 72. Because the nut 6 is arranged inside the motor 4, the motor 4 is connected to the middle connecting piece 2, and therefore, the spatial three-dimensional positions of the nut relative to the base 1 and the middle connecting piece 2 are basically unchanged, the screw 5 moves relative to the nut 6 and drives the connecting rod 7 to move together, and the connecting rod second rotating shaft 72 is fixed relative to the seat body 3, so that the connecting rod 7 rotates around the connecting rod second rotating shaft 72, and when the connecting rod 7 moves relative to the front and back directions due to the mutual structural limitation, the angle change is generated, but the pivot rotation of the two end parts of the connecting rod 7 is utilized, the resultant motion of the movement of the screw 5 along the axial lead direction of the screw 5 and the rotation of the angle change is prevented from being in a pause, and the sliding of the seat body 3 is smoother. Specifically, the upper end portion of the screw 5 is provided with a radially protruding second ear portion 55, the position of the second ear portion 55 in the axial direction of the screw 5 with respect to the screw 5 remains unchanged, the lower end portion of the link 7 is pivotally connected to the second ear portion 55 via a link first rotation shaft 71, and the upper end portion of the link 7 is pivotally connected to the seat body 3 via a link second rotation shaft 72. More preferably, the second ear 55 is fixedly disposed relative to the screw 5.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Claims (6)
1. A child car safety seat comprising:
A base;
The middle connecting piece is arranged above the base, is pivotally connected with the base and is provided with an arc-shaped upper receiving surface protruding downwards;
the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with a downward-protruding arc-shaped lower bottom surface, the arc-shaped lower bottom surface is positioned above the arc-shaped upper receiving surface, and the seat body is slidably connected with the middle connecting piece along the arc direction and is used for adjusting the inclination angle of the seat body relative to the base; the method is characterized in that: the child car safety seat also comprises
The motor is fixedly arranged on the seat body;
The nut is in driving connection with the motor, and the nut can be rotatably arranged in the motor around the axis of the nut;
The screw rod penetrates through the motor, and the nut is sleeved on the screw rod and is in threaded fit connection with the screw rod;
One end part of the connecting rod is in pivot connection with the screw rod through a first rotating shaft of the connecting rod, and the other end part of the connecting rod is in pivot connection with the middle connecting piece through a second rotating shaft of the connecting rod;
The lower end part of the screw is fixedly provided with a radially protruding second lug part, the position of the second lug part relative to the screw in the axial direction of the screw is kept unchanged, the upper end part of the connecting rod is pivotally connected with the second lug part through a first rotating shaft of the connecting rod, the lower end part of the connecting rod is pivotally connected with the rear end part of the middle connecting piece through a second rotating shaft of the connecting rod,
When the motor drives the nut to rotate, the screw rod cannot generate larger displacement due to the limitation of the length of the connecting rod, the nut moves along the axial lead direction of the screw rod, and when the nut moves, the screw rod generates angle change in comparison with the front-back direction to drive the connecting rod to swing, and the pivot shafts at the two end parts of the connecting rod are utilized to enable the seat body to slide along the arc-shaped direction relative to the middle connecting piece.
2. The child car safety seat according to claim 1, wherein: the middle connecting piece is provided with an arc-shaped guide groove, the arc-shaped guide groove is provided with a front limit blocking wall and a rear limit blocking wall, the seat body is fixedly provided with a guide pin, and the guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin slides between the front limit blocking wall and the rear limit blocking wall along the arc-shaped guide groove.
3. The child car safety seat according to claim 2, wherein: the two arc guide grooves are respectively a front arc guide groove and a rear arc guide groove, the two guide pins are respectively a front guide pin and a rear guide pin, the front guide pin is inserted into the front arc guide groove, and the rear guide pin is inserted into the rear arc guide groove.
4. A child car safety seat comprising:
A base;
The middle connecting piece is arranged above the base, is pivotally connected with the base and is provided with an arc-shaped upper receiving surface protruding downwards;
the seat body is at least partially arranged above the middle connecting piece, the bottom of the seat body is provided with a downward-protruding arc-shaped lower bottom surface, the arc-shaped lower bottom surface is positioned above the arc-shaped upper receiving surface, and the seat body is slidably connected with the middle connecting piece along the arc direction and is used for adjusting the inclination angle of the seat body relative to the base; the method is characterized in that: the child car safety seat also comprises
The motor is fixedly arranged on the rear end part of the middle connecting piece;
The nut is in driving connection with the motor, and the nut can be rotatably arranged in the motor around the axis of the nut;
The screw rod penetrates through the motor, and the nut is sleeved on the screw rod and is in threaded fit connection with the screw rod;
One end part of the connecting rod is in pivot connection with the screw rod through a first rotating shaft of the connecting rod, and the other end part of the connecting rod is in pivot connection with the seat body through a second rotating shaft of the connecting rod;
the upper end part of the screw is fixedly provided with a radially protruding second lug part, the position of the second lug part relative to the screw in the axial direction of the screw is kept unchanged, the lower end part of the connecting rod is in pivot connection with the second lug part through a first rotating shaft of the connecting rod, and the upper end part of the connecting rod is in pivot connection with the seat body through a second rotating shaft of the connecting rod;
When the motor drives the nut to rotate, the position of the nut relative to the base and the middle connecting piece is kept unchanged, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to move, the upper end part of the connecting rod is kept unchanged relative to the seat body, the connecting rod rotates relative to the seat body, the angle change generated in the front-back direction of intersection when the screw rod moves drives the connecting rod to swing, and the pivot of the two end parts of the connecting rod is utilized to enable the seat body to slide along the arc direction relative to the middle connecting piece.
5. The child car safety seat according to claim 4, wherein: the middle connecting piece is provided with an arc-shaped guide groove, the arc-shaped guide groove is provided with a front limit blocking wall and a rear limit blocking wall, the seat body is fixedly provided with a guide pin, and the guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin slides between the front limit blocking wall and the rear limit blocking wall along the arc-shaped guide groove.
6. The child car safety seat according to claim 5, wherein: the two arc guide grooves are respectively a front arc guide groove and a rear arc guide groove, the two guide pins are respectively a front guide pin and a rear guide pin, the front guide pin is inserted into the front arc guide groove, and the rear guide pin is inserted into the rear arc guide groove.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768900 | 2022-06-30 | ||
| CN2022107689005 | 2022-06-30 |
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| CN115257481A CN115257481A (en) | 2022-11-01 |
| CN115257481B true CN115257481B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210823715.1A Active CN115257481B (en) | 2022-06-30 | 2022-07-13 | Child car safety seat |
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| CN (1) | CN115257481B (en) |
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| KR101859887B1 (en) * | 2017-12-20 | 2018-05-23 | 주식회사 다이치 | Kids car seat having convenient adjustment levers |
| CN110214094A (en) * | 2017-01-31 | 2019-09-06 | 罗伯特·博世有限公司 | The children's seat that can electrically adjust shifting especially for being fixed on automobile seat |
| CN110861545A (en) * | 2019-11-21 | 2020-03-06 | 安徽省阜阳市好希望工贸有限公司 | Adjusting device of child safety seat |
| CN113119819A (en) * | 2019-12-30 | 2021-07-16 | 阿柚科技(宁波)有限公司 | Seat pocket angle adjusting device and child safety seat using same |
| CN216401221U (en) * | 2021-10-14 | 2022-04-29 | 好孩子儿童用品有限公司 | Automobile safety seat for children |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6739660B2 (en) * | 2002-02-11 | 2004-05-25 | David N. Dukes | Motorized remote controlled reclining child safety car seat |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995026279A1 (en) * | 1994-03-25 | 1995-10-05 | Klippan Safety Ab | A child's safety seat |
| US5810436A (en) * | 1996-06-28 | 1998-09-22 | Ampafrance S.A. | Child seat with a tiltable back |
| JP2007246061A (en) * | 2006-02-16 | 2007-09-27 | Leaman Kk | Child seat |
| CN110214094A (en) * | 2017-01-31 | 2019-09-06 | 罗伯特·博世有限公司 | The children's seat that can electrically adjust shifting especially for being fixed on automobile seat |
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| CN110861545A (en) * | 2019-11-21 | 2020-03-06 | 安徽省阜阳市好希望工贸有限公司 | Adjusting device of child safety seat |
| CN113119819A (en) * | 2019-12-30 | 2021-07-16 | 阿柚科技(宁波)有限公司 | Seat pocket angle adjusting device and child safety seat using same |
| CN216401221U (en) * | 2021-10-14 | 2022-04-29 | 好孩子儿童用品有限公司 | Automobile safety seat for children |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115257481A (en) | 2022-11-01 |
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