CN117922399B

CN117922399B - Child car safety seat

Info

Publication number: CN117922399B
Application number: CN202410332694.2A
Authority: CN
Inventors: 林力自
Original assignee: Ningbo Bolenn Manufacturing Co ltd
Current assignee: Ningbo Bolenn Manufacturing Co ltd
Priority date: 2024-03-22
Filing date: 2024-03-22
Publication date: 2024-07-12
Anticipated expiration: 2044-03-22
Also published as: CN117922399A

Abstract

The invention discloses a child car safety seat, which comprises a base and a seat body matched with the base, wherein the bottom of the seat body is provided with a connecting rod, the base is provided with a quick connecting mechanism matched with the connecting rod, and the base can be quickly disassembled and assembled with the seat body through the quick connecting mechanism; the chair body comprises a chair body and a sitting posture adjusting pad arranged on the chair body, a locking mechanism is arranged between the chair body and the sitting posture adjusting pad, and the locking mechanism enables the sitting posture adjusting pad to be locked at a first position or a second position relative to the chair body. The seat cushion has the advantages that the structural design is ingenious, the position of the seat cushion relative to the seat body can be adjusted by single-hand operation, the seat cushion is convenient for children to keep the sitting posture and the sleeping posture in the optimal state in the seat, and the children can sit more comfortably. The chair body can be easily and conveniently locked on the base or detached from the base through the matching of the quick connecting mechanism and the connecting rod, the reliability after installation is high, and the use safety of the child safety seat is improved.

Description

Child car safety seat

Technical Field

The invention relates to the technical field of child safety seats, in particular to a child car safety seat.

Background

The child safety seat is a seat which is tied on an automobile seat for children to sit on and can bind the children and ensure the safety of the children to the maximum extent. With the explosive growth of the quantity of automobile maintenance and the great improvement of people's life safety awareness, child safety seats have also gained acceptance by most households.

For children with different heights, the child safety seat in the prior art is additionally provided with an angle adjusting function for adjusting the inclination angle of the child safety seat. When the child is small, the child can lie on the safety seat more comfortably and safely, and the inclination angle of the safety seat needs to be adjusted to be the lying angle; when the child is sitting, the child is more comfortable in sitting position, and the inclination angle of the safety seat is required to be adjusted to be the sitting position angle.

The seat angle adjusting mechanism, the supporting plate and the child safety seat are disclosed in Chinese patent (publication No. CN 117325730A), and the seat angle adjusting mechanism is arranged between the seat part and the base of the child safety seat and is used for adjusting the angle of the seat part relative to the base. The seat angle adjustment mechanism includes a lock release operating member, a connecting member, and an angle locking structure. The lock release operating member is provided on a support plate connected to a front end of the seat portion and is operable to move between a lock release position and a lock position. An angle locking structure is disposed between the seat and the base to lock or unlock the position of the seat relative to the base, wherein the angle locking structure has a plurality of locking positions relative to the base to lock the seat at a plurality of angles relative to the base. The connecting member is connected between the lock release operating member and the angle locking structure. When the lock release operating member is in the locked position, the seat is positioned relative to the base. The seat is slidable relative to the base when the lock release operating member is operated to the lock release position. The seat is slidably connected to the base by at least one slide assembly, wherein each slide assembly comprises: a sliding member provided to the seat portion; and the sliding fit component is arranged on the base and is in sliding fit with the sliding component.

However, the seat angle adjusting mechanism, the support plate, and the child safety seat disclosed in the above prior art have the following disadvantages:

① The seat angle adjusting mechanism adjusts the inclination angle of the seat relative to the base, so that the child sitting in the safety seat always keeps a sitting posture, but cannot adjust to a lying posture, and the riding comfort of the child cannot be met.

② The seat part is connected with the base in a sliding way through at least one sliding component, and the structural design of the seat part leads to complex disassembly and assembly operations of the seat and the base and inconvenient use.

There is a need for improvements over the prior art.

Disclosure of Invention

Aiming at the defects and shortcomings in the prior art, the invention provides the child car safety seat which is ingenious in structural design, and the position of the sitting posture adjusting pad relative to the seat body can be adjusted by single-hand operation, so that the child can conveniently keep the sitting posture and the sleeping posture in the seat in an optimal state, and the child can sit more comfortably; the fastening mechanism solves the problems of complex structure, inconvenient detachment and installation, low installation firmness and the like of the conventional fastening mechanism.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the child car safety seat comprises a base and a seat body matched with the base, wherein a connecting rod is arranged at the bottom of the seat body, a quick connecting mechanism matched with the connecting rod is arranged on the base, and the base is quickly assembled and disassembled with the seat body through the quick connecting mechanism; the utility model provides a seat, including the seat body and locating the position of sitting on the seat body and adjust the pad, be provided with locking mechanism between seat body and the position of sitting and adjust the pad, locking mechanism makes the position of sitting adjust the pad can be in first position or second position locking for the seat body, works as when the position of sitting is adjusted the position of pad and is located the first position of seat body, the position of sitting is adjusted the pad and is laminated with the seat body, works as when the position of sitting is adjusted the position of pad and is located the second position of seat body, at least partial region of position of sitting is adjusted the pad and is not laminated with the seat body to make position of sitting adjust the pad change into can supply children to lie in the form in the seat to one side.

Further, the locking mechanism comprises a sliding plate, a locking pin matched with the sliding plate in a sliding way and a gear locking hole arranged on the side part of the chair body, the sliding plate is in sliding connection with the bottom of the sitting posture adjusting pad, a first elastic piece is propped against the bottom of the sliding plate and the sitting posture adjusting pad, and the first elastic piece is acted on the sliding plate to enable the locking pin to always have a trend of being inserted into the gear locking hole.

Further, locking pin one end is pegged graft in gear locking hole, the other end of locking pin is equipped with rather than vertically stand, be equipped with the slope guide way that is "eight" font setting on the sliding plate, the stand stretches into in the slope guide way, when the sliding plate slides, the sliding plate passes through slope guide way drive locking pin and removes along the slope guide way to make locking pin insert gear locking hole or extract from gear locking hole.

Further, the gear locking hole comprises a first gear locking hole and a second gear locking hole, and when the locking pin is in plug-in fit with the first gear locking hole, the sitting posture adjusting pad is positioned at the first position of the chair body; when the locking pin is in plug-in fit with the second gear locking hole, the sitting posture adjusting pad is located at a second position of the chair body.

Further, the front end of the sliding plate is provided with a first handle, and the bottom of the sitting posture adjusting pad is provided with a second handle which is opposite to the first handle.

Further, the chair body comprises a chair seat and a chair back, the chair seat is provided with a first track groove, the first track groove extends from one end, close to the chair back, of the chair seat to one end, far away from the chair back, of the chair back, the chair back is provided with a second track groove, the second track groove extends from top to bottom, the bottom of the sitting posture adjusting pad is in sliding connection with the first track groove, and the top of the sitting posture adjusting pad is in sliding connection with the second track groove.

Further, the sitting posture adjusting pad comprises a cushion correspondingly matched with the seat and a back pad correspondingly matched with the chair back, the cushion is hinged with the back pad, the cushion is matched with the first track groove in a sliding way, and the top of the back pad is matched with the second track groove in a sliding way.

Further, the quick connect mechanism includes: the locking groove is arranged on the base, and the opening end of the locking groove is upwards arranged; the locking block is arranged corresponding to the locking groove and is rotatably connected to the base, the locking block is provided with a pressing linkage part matched with the connecting rod, when the connecting rod is placed in the locking groove, the connecting rod drives the locking block to rotate relative to the base through the pressing linkage part so as to close the locking groove, a second elastic piece is connected between the locking block and the base, and the second elastic piece enables the locking block to always have a trend of opening the locking groove; the sliding shaft is correspondingly arranged with the locking block, the sliding shaft is connected to the base in a vertical sliding way, the base is provided with a third elastic piece which enables the sliding shaft to be always propped against the periphery of the locking block, the locking block is provided with a limit notch matched with the sliding shaft, when the locking block rotates towards the direction of closing the locking groove, the sliding shaft slides relative to the periphery of the locking block until the locking block closes the locking groove, and the sliding shaft slides into the limit notch; the unlocking plate is used for driving the sliding shaft to move out of the limiting notch.

Further, the unlocking plate is provided with an inclined chute, the base is provided with a vertical chute, the vertical chute and the inclined chute are arranged at an included angle, the sliding shaft is arranged in the inclined chute and the vertical chute in a penetrating mode, and when the unlocking plate slides, the sliding shaft slides up and down along the vertical chute under the guidance of the inclined chute.

Further, the bottom of the chair body is provided with an angle adjusting mechanism for adjusting the inclination angle of the chair body relative to the base.

After the structure is adopted, the invention has the beneficial effects that:

1. The invention relates to a child car safety seat, which comprises a base and a seat body matched with the base, wherein the seat body comprises a seat body and a sitting posture adjusting pad arranged on the seat body, a locking mechanism is arranged between the seat body and the sitting posture adjusting pad, the locking mechanism enables the sitting posture adjusting pad to be locked at a first position or a second position relative to the seat body, when the sitting posture adjusting pad is positioned at the first position of the seat body, the sitting posture adjusting pad is attached to the seat body, when the sitting posture adjusting pad is positioned at the second position of the seat body, at least part of the sitting posture adjusting pad is not attached to the seat body, so that the sitting posture adjusting pad is deformed into a form in which a child can lie in the seat body in a leaning way. The seat cushion has the advantages that the structural design is ingenious, the position of the seat cushion relative to the seat body can be adjusted by single-hand operation, the seat cushion is convenient for children to keep the sitting posture and the sleeping posture in the seat in the optimal state, the children can sit more comfortably, and the children do not need to be held up in the adjustment process.

2. The invention relates to a child car safety seat, which comprises a base and a seat body matched with the base, wherein the bottom of the seat body is provided with a connecting rod, the base is provided with a quick connecting mechanism matched with the connecting rod, the base can be quickly assembled and disassembled with the seat body through the quick connecting mechanism, the seat body can be easily and conveniently locked on the base or detached from the base through the matching of the quick connecting mechanism and the connecting rod, and a sliding shaft locks a locking block to a state of closing a locking groove after the locking, so that the locked seat body can be ensured not to be unhooked from the base, and the use safety of the child car safety seat is improved.

3. The invention relates to a child car safety seat, wherein an angle adjusting mechanism for adjusting the inclination angle of a seat body relative to a base is arranged at the bottom of the seat body. The inclination angle of the chair body can be adjusted through the angle adjusting mechanism. When the child is small or falls asleep, the inclination angle of the chair body can be adjusted to be a lying angle, and then the sitting posture adjusting pad is adjusted to be positioned at the second position of the chair body, so that the child lies in the chair body almost horizontally, and the riding comfort of the child is greatly improved. When a child needs to sit in the chair body in a sitting posture, the inclination angle of the chair body is adjusted to be the sitting posture angle, and then the sitting posture adjusting pad is adjusted to the first position of the chair body, so that the child is more comfortable in sitting posture.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below, and it will be apparent that the drawings in the description below are some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a cross-sectional view of the seat cushion of the present invention in a first position of the body;

FIG. 4 is a cross-sectional view of the seat cushion of the present invention in a second position of the body;

FIG. 5 is a schematic view of the seat cushion of the present invention in a first position of the body;

FIG. 6 is a schematic illustration of the connection and engagement of the seat cushion and locking mechanism of the present invention;

FIG. 7 is a schematic perspective view of a locking pin of the present invention;

FIG. 8 is a schematic view of the connection mating of the first resilient member, the first handle and the sliding plate of the present invention;

FIG. 9 is a schematic view of the connection mating of the base, quick connect mechanism and connecting rod of the present invention;

FIG. 10 is a schematic view of the connection mating of the quick connect mechanism and connecting rod of the present invention;

FIG. 11 is a schematic view of the connection and engagement of the locking block with the second resilient member of the present invention;

FIG. 12 is a schematic perspective view of a locking block of the present invention;

FIG. 13 is a schematic view of the connection and engagement of the unlocking plate and the third elastic member of the present invention;

FIG. 14 is a schematic view of the connection engagement of the angle adjustment mechanism of the present invention with the connecting rod;

The reference numerals in fig. 1 to 14 are:

1. A base; 11. a vertical chute; 2. a chair body; 21. a chair body; 211. a seat; 2111. a first track groove A; 2112. a first track groove B; 2113. a first track groove C; 212. a chair back; 2121. a second track groove; 22. a sitting posture adjusting pad; 221. a cushion; 2211. a first seat cushion; 2212. a second seat cushion; 2213. a first connecting rod; 2214. a second connecting rod; 2215. a first positioning block; 222. a back pad; 2221. a second positioning block; 3. a connecting rod; 4. a quick connection mechanism; 41. a locking groove; 42. a locking block; 421. a pressing linkage part; 422. limiting notch; 423. a hook portion; 43. a second elastic member; 44. a sliding shaft; 45. a third elastic member; 46. unlocking plate; 461. tilting the chute; 5. a locking mechanism; 51. a sliding plate; 511. an inclined guide groove; 52. a locking pin; 521. a column; 53. a gear locking hole; 531. a first gear locking hole; 532. a second gear locking hole; 54. a first elastic member; 6. a first handle; 7. a second handle; 8. an angle adjusting mechanism.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 14, the child car safety seat comprises a base 1 and a seat body 2 matched with the base 1, wherein a connecting rod 3 is arranged at the bottom of the seat body 2, a quick connecting mechanism 4 matched with the connecting rod 3 is arranged on the base 1, and the base 1 is quickly assembled and disassembled with the seat body 2 through the quick connecting mechanism 4; the chair body 2 comprises a chair body 21 and a sitting posture adjusting pad 22 arranged on the chair body 21, a locking mechanism 5 is arranged between the chair body 21 and the sitting posture adjusting pad 22, the locking mechanism 5 enables the sitting posture adjusting pad 22 to be locked at a first position or a second position relative to the chair body 21, when the sitting posture adjusting pad 22 is positioned at the first position of the chair body 21, the sitting posture adjusting pad 22 is attached to the chair body 21, when the sitting posture adjusting pad 22 is positioned at the second position of the chair body 21, at least part of the sitting posture adjusting pad 22 is not attached to the chair body 21, so that the sitting posture adjusting pad 22 is deformed into a form capable of being used for a child to recline in the chair body 2.

Based on the above embodiment, the present invention is to solve the problem of providing a child car safety seat, comprising a base 1 and a seat body 2 adapted to the base 1, wherein a connecting rod 3 is provided at the bottom of the seat body 2, a quick connection mechanism 4 matching with the connecting rod 3 is provided on the base 1, the base 1 is quickly assembled and disassembled with the seat body 2 through the quick connection mechanism 4, the user can easily and conveniently lock the seat body 2 on the base 1 or detach from the base 1 through the matching of the quick connection mechanism 4 and the connecting rod 3, and after locking, a sliding shaft 44 locks a locking block 42 to a state of closing a locking groove 41, so that the locked seat body 2 can be ensured not to be unhooked from the base 1, the use safety of the child safety seat is improved. the child car safety seat also comprises a base 1 and a seat body 2 matched with the base 1, the seat body 2 comprises a seat body 21 and a sitting posture adjusting pad 22 arranged on the seat body 21, a locking mechanism 5 is arranged between the seat body 21 and the sitting posture adjusting pad 22, the locking mechanism 5 enables the sitting posture adjusting pad 22 to be locked at a first position or a second position relative to the seat body 21, when the sitting posture adjusting pad 22 is positioned at the first position of the seat body 21, the sitting posture adjusting pad 22 is jointed with the seat body 21, when the sitting posture adjusting pad 22 is positioned at the second position of the seat body 21, at least part of the sitting posture adjusting pad 22 is not jointed with the seat body 21, Thereby deforming the sitting posture adjusting pad 22 into a form in which the child can recline in the chair body 2. The structure design is ingenious, the locking pin 52 can be switched between the first gear locking hole 531 or the second gear locking hole 532 only by one-hand operation, namely, the position of the sitting posture adjusting pad 22 relative to the chair body 21 is adjusted, so that the sitting posture and the sleeping posture of a child can be kept in the optimal state in the chair conveniently, and the child can sit more comfortably. In the present embodiment, a plurality of gear locking holes 53 may be provided at the side of the body 21 to achieve multi-gear adjustment. In a further embodiment, it is preferable to provide a first gear locking hole 531 and a second gear locking hole 532, and when the child sits in the seat body 2, the locking pin 52 is engaged with the first gear locking hole 531 for comfort of sitting of the child, and the sitting posture adjustment pad 22 is fitted to the seat back 212, as shown in fig. 3. When a child is sleeping in the seat 2, the locking pin 52 is engaged with the second gear locking hole 532 for comfort of the child, at least a part of the sitting posture adjusting pad 22 is not attached to the seat body 21, so that the sitting posture adjusting pad 22 is deformed into a form in which the child can lie in the seat 2, as shown in fig. 4. When the sitting posture adjusting pad 22 is required to be adjusted relative to the chair body 21 in use, only the thumb of one hand is required to press the front end of the first handle 6, the other four fingers are required to pull the second handle 7, then the fist is held, the first handle 6 drives the sliding plate 51 to move towards the second handle 7 against the elastic force of the first elastic piece 54, the locking pin 52 which is slidably arranged in the inclined guide groove 511 on the sliding plate 51 slides towards the direction away from the gear locking hole 53 under the guiding action of the inclined guide groove 511, finally the locking pin 52 is separated from the initial gear locking hole 53, meanwhile, the second handle 7 is pushed to move backwards or the second handle 7 is pulled to move forwards, Then the first handle 6 is released, the sliding plate 51 slides forwards under the elastic action of the first elastic piece 54, the locking pin 52 which is slidably arranged in the inclined guide groove 511 of the sliding plate 51 slides towards the direction close to the gear locking hole 53 under the guide action of the inclined guide groove 511, and when the locking pin 52 moves to be aligned with the gear locking hole 53, the locking pin 52 is automatically clamped into the corresponding gear locking hole 53 to be positioned in a matched manner, so that the position of the sitting posture adjusting pad 22 relative to the chair body 21 is adjusted.

As another preferred embodiment of the present invention, the locking mechanism 5 includes a sliding plate 51, a locking pin 52 slidingly engaged with the sliding plate 51, and a gear locking hole 53 provided at a side portion of the seat body 21, the sliding plate 51 is slidingly connected to a bottom portion of the sitting posture adjusting pad 22, the sliding plate 51 and the bottom portion of the sitting posture adjusting pad 22 are abutted with a first elastic member 54, and the first elastic member 54 acts on the sliding plate 51 to make the locking pin 52 always have a tendency to be inserted into the gear locking hole 53. One end of the locking pin 52 is inserted into the gear locking hole 53, the other end of the locking pin 52 is provided with a vertical column 521 perpendicular to the locking pin, the sliding plate 51 is provided with an inclined guide groove 511 arranged in a splayed shape, the vertical column 521 stretches into the inclined guide groove 511, and when the sliding plate 51 slides, the sliding plate 51 drives the locking pin 52 to move along the inclined guide groove 511 through the inclined guide groove 511, so that the locking pin 52 is inserted into the gear locking hole 53 or pulled out of the gear locking hole 53. The gear locking hole 53 includes a first gear locking hole 531 and a second gear locking hole 532, and when the locking pin 52 is in plug-in engagement with the first gear locking hole 531, the sitting posture adjusting pad 22 is located at the first position of the seat body 21; when the locking pin 52 is in plug-in engagement with the second gear locking hole 532, the sitting posture adjusting pad 22 is located at the second position of the seat body 21. In this embodiment, as shown in fig. 5 and 6, the gear locking hole 53 includes a first gear locking hole 531 and a second gear locking hole 532, and when the locking pin 52 is in plug-in fit with the first gear locking hole 531, the sitting posture adjusting pad 22 is located at the first position of the seat body 21, and the child can sit in the seat body 2 at this time; When the locking pin 52 is in plug-in engagement with the second gear locking hole 532, the sitting posture adjusting pad 22 is located at the second position of the seat body 21, and the child can recline in the seat body 2. When the sitting posture adjusting pad 22 needs to be adjusted to be positioned at the second position of the chair body 21, namely, the locking pin 52 is adjusted from the first gear locking hole 531 to be in plug-in fit with the second gear locking hole 532, the front end of the first handle 6 is pressed by the thumb of one hand, the second handle 7 is pulled by the other four fingers, then the fist holding action is performed, the first handle 6 drives the sliding plate 51 to move towards the second handle 7 against the elastic force of the first elastic piece 54, the locking pin 52 which is arranged in the sliding way in the inclined guide groove 511 on the sliding plate 51 slides towards the direction away from the gear locking hole 53 under the guiding action of the inclined guide groove 511, Finally, the locking pin 52 is disengaged from the first gear locking hole 531, at this time, the second handle 7 is pulled forward, then the first handle 6 is released, the sliding plate 51 slides forward under the elastic force of the first elastic member 54, the locking pin 52 slidably disposed in the inclined guide groove 511 of the sliding plate 51 slides in a direction approaching the gear locking hole 53 under the guiding action of the inclined guide groove 511, when the locking pin 52 moves to be aligned with the second gear locking hole 532, the locking pin 52 is automatically inserted into the second gear locking hole 532 to be positioned in a fitting manner, so that the sitting posture adjusting pad 22 is adjusted to be positioned at the second position of the chair body 21, at this time, the child can recline in the chair body 2. when the sitting posture adjusting pad 22 is required to be adjusted to be positioned at the first position of the chair body 21, namely, the locking pin 52 is adjusted from the second gear locking hole 532 to be in plug-in fit with the first gear locking hole 531, the front end of the first handle 6 is only pressed by the thumb of one hand, the second handle 7 is pulled by the other four fingers, then the fist-making action is carried out, the first handle 6 drives the sliding plate 51 to move towards the second handle 7 against the elastic acting force of the first elastic piece 54, the locking pin 52 which is arranged in the sliding way in the inclined guide groove 511 on the sliding plate 51 slides towards the direction away from the gear locking hole 53 under the guiding action of the inclined guide groove 511, finally, the locking pin 52 is disengaged from the second gear locking hole 532, at this time, the second handle 7 is pushed to move backward, then the first handle 6 is released, the sliding plate 51 slides forward under the elastic force of the first elastic member 54, the locking pin 52 slidably arranged in the inclined guide groove 511 of the sliding plate 51 slides in a direction approaching to the gear locking hole 53 under the guiding action of the inclined guide groove 511, when the locking pin 52 moves to be aligned with the first gear locking hole 531, the locking pin 52 is automatically inserted into the first gear locking hole 531 to be positioned in a matched manner, so that the sitting posture adjusting pad 22 is adjusted to be positioned at the first position of the chair body 21, at this time, the child can sit in the seat body 2 in a sitting posture. One end of the locking pin 52 is inserted into the gear locking hole 53, the other end of the locking pin 52 is provided with a vertical column 521 perpendicular to the locking pin, the sliding plate 51 is provided with an inclined guide groove 511 arranged in a splayed shape, the vertical column 521 stretches into the inclined guide groove 511, and when the sliding plate 51 slides, the sliding plate 51 drives the locking pin 52 to move along the inclined guide groove 511 through the inclined guide groove 511, so that the locking pin 52 is inserted into the gear locking hole 53 or pulled out of the gear locking hole 53. The sliding plate 51 is further provided with a straight sliding groove extending from an end of the sliding plate 51 near the back 212 toward an end far from the back 212. In this embodiment, as shown in fig. 6 and 8, the straight slide groove extends from the end of the slide plate 51 close to the seat back 212 toward the end far from the seat back 212, i.e., the straight slide groove extends in the front-rear direction of the seat 211. Through the sliding connection cooperation of the straight sliding groove, the inclined guide groove 511 and the locking pin 52, the sliding of the sliding plate 51 in the front-back direction is converted into the sliding of the locking pin 52 in the left-right direction, so that the locking pin 52 can slide close to or far away from the gear locking hole 53, the locking pin 52 is inserted into the gear locking hole 53 or pulled out of the gear locking hole 53, the position of the sitting posture adjusting pad 22 relative to the chair body 21 is adjusted and locked, different requirements of sitting postures and sleeping postures of children are met, and riding comfort of the children is improved.

As another preferable aspect of the present invention, a first handle 6 is provided at the front end of the sliding plate 51, and a second handle 7 disposed opposite to the first handle 6 is provided at the bottom of the sitting posture adjusting pad 22. In this embodiment, the sitting posture adjusting pad 22 is provided at the bottom, i.e. the seat cushion 221. As shown in fig. 3 and 8, the first handle 6 is fixedly connected with the sliding plate 51 through a connecting column penetrating through the cushion 221, the cushion 221 is provided with a kidney-shaped groove matched with the connecting column in a sliding manner, as shown in fig. 5, the connecting column penetrates through the cushion 221 to fixedly connect the sliding plate 51 below the cushion 221 with the first handle 6 above the cushion 221, so that the sliding plate 51 can synchronously move along with the movement of the first handle 6, the movement track of the first handle 6 is limited by the arrangement of the kidney-shaped groove, and meanwhile, the first handle 6 can slide relative to the cushion 221, so that an avoidance space is provided for the sliding of the first handle 6. The provision of the second handle 7 facilitates the application of force to the first handle 6.

As another preferred aspect of the present invention, the seat body 21 includes a seat 211 and a backrest 212, the seat 211 is provided with a first track groove, the first track groove extends from an end of the seat 211 close to the backrest 212 toward an end far away from the backrest 212, the backrest 212 is provided with a second track groove 2121, the second track groove 2121 extends from top to bottom, the bottom of the sitting posture adjusting pad 22 is in sliding connection with the first track groove, and the top of the sitting posture adjusting pad 22 is in sliding connection with the second track groove 2121. The sitting posture adjusting pad 22 comprises a cushion 221 correspondingly matched with the seat 211 and a back pad 222 correspondingly matched with the chair back 212, the cushion 221 is hinged with the back pad 222, the cushion 221 is matched with the first track groove in a sliding way, and the top of the back pad 222 is matched with the second track groove 2121 in a sliding way. In this embodiment, as shown in fig. 4 and 5, the cushion 221 can only slide back and forth along the seat 211 under the guiding action of the first track groove, the lower end of the back cushion 222 slides back and forth along the cushion 221 under the hinging action of the first connecting rod 2213, and the top of the back cushion 222 can only slide up and down along the seat back 212 under the guiding action of the second track groove 2121, so that the back cushion 222 has two forms relative to the seat back 212, one is that the back cushion 222 is attached to the seat back 212, and at this time, a child can sit in the seat body 2; secondly, the back pad 222 is not attached to the chair back 212, but is inclined, so that the child can recline in the chair body 2. In a further embodiment, as shown in fig. 2 to 5, the seat cushion 221 includes a first seat cushion 2211 and a second seat cushion 2212, the back cushion 222 is hinged to the first seat cushion 2211 through a first connecting rod 2213, the first seat cushion 2211 and the second seat cushion 2212 are hinged through a second connecting rod 2214, the first track groove includes a first track groove a2111 slidingly engaged with the first connecting rod 2213 and a first track groove B2112 slidingly engaged with the second connecting rod 2214, and the first track groove a2111 and the first track groove B2112 each extend from an end of the seat 211 near the back 212 toward an end far away from the back 212. A third connecting rod is further arranged at one end of the second seat cushion 2212 far from the first seat cushion 2211, the first track groove further comprises a first track groove C2113 in sliding fit with the third connecting rod, and the first track groove C2113 extends from one end of the seat 211 near the seat back 212 to one end far from the seat back 212; a fourth connecting rod is disposed at the top of the back pad 222, and the back pad 222 is slidably engaged with the second track groove 2121 through the fourth connecting rod. Further, a first positioning block 2215 is fixedly arranged at the lower end of the second cushion 2212, a third connecting rod is arranged on the first positioning block 2215, the third connecting rod is in sliding connection fit with a first track groove C2113, and the first track groove C2113 extends from one end of the seat 211 close to the seat back 212 to one end far away from the seat back 212; The top of the back cushion 222 is fixedly provided with a second positioning block 2221, a fourth connecting rod is arranged on the second positioning block 2221, the chair back 212 is provided with a second track groove 2121, the second track groove 2121 extends from top to bottom, and the fourth connecting rod is in sliding fit with the second track groove 2121. the back cushion 222, the first cushion 2211 and the second cushion 2212 are all connected in a hinged manner, the connection of the back cushion 222, the first cushion 2211 and the second cushion 2212 is realized in a hinged manner, the relative angle between the back cushion 222 and the first cushion 2211 is also enabled to be adjustable, the angle between the back cushion 222 and the first cushion 2211 is adjusted to adapt to the switching of sitting postures and sleeping postures of children, the angle between the first cushion 2211 and the second cushion 2212 is adjusted to enable the cushion 221 before and after adjustment to be fit with the radian of the chair seat 211, Improving the riding comfort of children. Through the sliding connection cooperation of the third connecting rod, the fourth connecting rod, the first connecting rod 2213 and the second connecting rod 2214 with the first track groove C2113, the second track groove 2121, the first track groove A2111 and the first track groove B2112, the synchronous sliding of the back cushion 222, the first cushion 2211 and the second cushion 2212 is realized, and meanwhile, the whole adjusting process is stable. In a further embodiment, as shown in fig. 5, the first track groove C2113 and the first track groove B2112 are preferably designed as arc grooves that conform to the curvature of the seat 211, such that the seat cushion 221 will always conform to the seat 211 during sliding movement. In a further embodiment, as shown in fig. 5, the second track groove 2121 is disposed obliquely from top to bottom, and the horizontal distance between the bottom end of the second track groove 2121 and the seat 211 is smaller than the horizontal distance between the top end of the second track groove 2121 and the seat 211. The design of this structure is to make the inclination angle of the second track groove 2121 and the chair back 212 consistent, so that the top of the back pad 222 always slides against the chair back 212 when sliding along the second track groove 2121, so that the child will not lie uncomfortable due to the obvious step formed between the back pad 222 and the chair back 212.

As another preferred aspect of the present invention, the quick-connect mechanism 4 includes: the locking groove 41 is formed in the base 1, and the opening end of the locking groove 41 is upwards arranged; the locking block 42 is correspondingly arranged with the locking groove 41, the locking block 42 is rotatably connected to the base 1, the locking block 42 is provided with a pressing linkage part 421 matched with the connecting rod 3, when the connecting rod 3 is placed in the locking groove 41, the connecting rod 3 drives the locking block 42 to rotate relative to the base 1 through the pressing linkage part 421 so as to close the locking groove 41, a second elastic piece 43 is connected between the locking block 42 and the base 1, and the second elastic piece 43 enables the locking block 42 to always have a trend of opening the locking groove 41; A sliding shaft 44, the sliding shaft 44 is arranged corresponding to the locking block 42, the sliding shaft 44 is connected to the base 1 in a vertically sliding way, the base 1 is provided with a third elastic piece 45 which keeps the sliding shaft 44 against the periphery of the locking block 42 all the time, the locking block 42 is provided with a limit notch 422 matched with the sliding shaft 44, when the locking block 42 rotates towards the direction of closing the locking groove 41, the sliding shaft 44 slides relative to the periphery of the locking block 42 until the locking block 42 closes the locking groove 41, and the sliding shaft 44 slides into the limit notch 422; the unlocking plate 46 is used for driving the sliding shaft 44 to move out of the limiting notch 422. The unlocking plate 46 is provided with an inclined chute 461, the base 1 is provided with a vertical chute 11, the vertical chute 11 and the inclined chute 461 are arranged at an included angle, the sliding shaft 44 is arranged in the inclined chute 461 and the vertical chute 11 in a penetrating manner, and when the unlocking plate 46 slides, the sliding shaft 44 slides up and down along the vertical chute 11 under the guidance of the inclined chute 461. In a further embodiment, as shown in fig. 11 and 12, the locking block 42 is provided with a hook portion 423 for opening or closing the locking groove 41. As shown in fig. 10 to 13, when the seat 2 is required to be mounted on the base 1, the connecting rod 3 provided at the bottom end of the seat 2 is pressed into the locking groove 41, the connecting rod 3 drives the locking block 42 to rotate relative to the base 1 in the first rotation direction a by the pressing-down linkage portion 421 to close the locking groove 41, and at this time, the hook portion 423 of the locking block 42 hooks the connecting rod 3 and closes the locking groove 41. The sliding shaft 44 is always kept against the periphery of the locking block 42 under the elastic force of the third elastic member 45, when the locking block 42 rotates to the first rotation direction a relative to the base 1 under the pressure of the connecting rod 3, the sliding shaft 44 slides relative to the periphery of the locking block 42 until the locking block 42 closes the locking groove 41, and the sliding shaft 44 slides into the limiting notch 422, so that the locking block 42 is locked in a state of closing the locking groove 41, the locked chair body 2 can be ensured not to be unhooked from the base 1, and the use safety of the child safety seat is improved. When the chair body 2 needs to be detached from the base 1, the unlocking plate 46 is pressed, so that the unlocking plate 46 overcomes the elastic force of the third elastic piece 45 and moves backwards relative to the base 1, at this time, the sliding shaft 44 moves downwards along the vertical sliding groove 11 under the common guidance of the vertical sliding groove 11 and the inclined sliding groove 461 until moving out of the limiting notch 422, the locking block 42 rotates towards the second rotating direction B under the elastic force of the second elastic piece 43 to open the locking groove 41, at this time, the hook 423 of the locking block 42 releases the hook of the connecting rod 3, and a user can easily remove the chair body 2 from the base 1. In a further embodiment, in order to make the connection between the chair body 2 and the base 1 more firm and stable, four locking grooves 41 are provided on the base 1, two locking grooves 41 are provided at the front end and the rear end of the base 1, the locking grooves 41 and the corresponding locking blocks 42 at the front end of the base 1 are named as front locking groups, the locking grooves 41 and the corresponding locking blocks 42 at the rear end of the base 1 are named as rear locking groups, and accordingly, one connecting rod 3 is provided at the front end and the rear end of the bottom of the chair body. When the chair body 2 is required to be mounted on the base 1, the connecting rods 3 arranged at the front end and the rear end of the bottom of the chair body 2 are simultaneously pressed into the locking grooves 41, the locking blocks 42 close the locking grooves 41 under the pressure action of the connecting rods 3, and the sliding shafts 44 lock the locking blocks 42 in a state of closing the locking grooves 41. When the chair body 2 needs to be detached from the base 1, the unlocking plate 46 is pressed, the unlocking plate 46 overcomes the elastic force of the third elastic piece 45 to drive the sliding shafts 44 positioned at the front end and the rear end of the base 1 to synchronously slide downwards along the vertical sliding groove 11 until the sliding shafts are removed from the limiting notch 422, and the locking block 42 rotates in the direction of opening the locking groove 41 under the elastic force of the second elastic piece 43 until the locking groove 41 is opened. Namely, the front locking group and the rear locking group synchronously lock and unlock the chair body 2, so that a user can easily and quickly lock the chair body 2 on the base 1 or detach the chair body from the base 1.

As another preferable mode of the invention, an angle adjusting mechanism 8 for adjusting the inclination angle of the chair body 2 relative to the base 1 is arranged at the bottom of the chair body 2. In this embodiment, as shown in fig. 14, an angle adjusting mechanism 8 for adjusting the inclination angle of the seat 2 with respect to the base 1 is mounted on the bottom of the seat 2. The adjustment of the inclination angle of the chair body 2 can be realized through the angle adjusting mechanism 8, when the child is small, or the child falls asleep, the inclination angle of the chair body 2 can be adjusted to be a lying angle, and then the sitting posture adjusting pad 22 is adjusted to be positioned at the second position of the chair body 21, so that the child lies in the chair body 2 almost, and the riding comfort of the child is greatly improved. When a child needs to sit in the chair body 2 in a sitting posture, the inclination angle of the chair body 2 is adjusted to be the sitting posture angle, and then the sitting posture adjusting pad 22 is adjusted to the first position of the chair body 21, so that the child is more comfortable in sitting posture.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.

Claims

1. Child car safety seat, including base (1) and with seat body (2) of base (1) adaptation, its characterized in that: the bottom of the chair body (2) is provided with a connecting rod (3), the base (1) is provided with a quick connecting mechanism (4) matched with the connecting rod (3), and the base (1) is quickly assembled and disassembled with the chair body (2) through the quick connecting mechanism (4); The chair body (2) comprises a chair body (21) and a sitting posture adjusting pad (22) arranged on the chair body (21), a locking mechanism (5) is arranged between the chair body (21) and the sitting posture adjusting pad (22), the locking mechanism (5) enables the sitting posture adjusting pad (22) to be locked at a first position or a second position relative to the chair body (21), when the sitting posture adjusting pad (22) is positioned at the first position of the chair body (21), the sitting posture adjusting pad (22) is jointed with the chair body (21), when the sitting posture adjusting pad (22) is positioned at the second position of the chair body (21), at least part of the sitting posture adjusting pad (22) is not jointed with the chair body (21), Thereby changing the sitting posture adjusting pad (22) into a shape which can be used for children to recline in the chair body (2), the chair body (21) comprises a chair seat (211) and a chair back (212), the chair seat (211) is provided with a first track groove, the first track groove extends from one end of the chair seat (211) close to the chair back (212) to one end far away from the chair back (212), the chair back (212) is provided with a second track groove (2121), the second track groove (2121) extends from top to bottom, the bottom of the sitting posture adjusting pad (22) is in sliding connection with the first track groove, the top of the sitting posture adjusting pad (22) is in sliding connection with the second track groove (2121), The sitting posture adjusting cushion (22) comprises a cushion (221) correspondingly matched with the chair seat (211) and a back cushion (222) correspondingly matched with the chair back (212), the cushion (221) is hinged with the back cushion (222), the cushion (221) is in sliding connection and matched with a first track groove, the top of the back cushion (222) is in sliding connection and matched with a second track groove (2121), the cushion (221) comprises a first cushion (2211) and a second cushion (2212), the back cushion (222) is hinged with the first cushion (2211) through a first connecting rod (2213), the first cushion (2211) and the second cushion (2212) are hinged through a second connecting rod (2214), The first track groove comprises a first track groove A (2111) in sliding connection with the first connecting rod (2213), a first track groove B (2112) in sliding connection with the second connecting rod (2214), the first track groove A (2111) and the first track groove B (2112) extend from one end, close to the chair back (212), of the chair seat (211) to one end, far away from the chair back (212), of the chair back (212), one end, far away from the first seat (2211), of the second seat cushion (2212) is further provided with a third connecting rod, the first track groove further comprises a first track groove C (2113) in sliding connection with the third connecting rod, The first track groove C (2113) extends from one end, close to the chair back (212), of the chair seat (211) to one end, far away from the chair back (212), a fourth connecting rod is arranged at the top of the back pad (222), and the back pad (222) is in sliding connection fit with the second track groove (2121) through the fourth connecting rod.

2. A child car safety seat according to claim 1, wherein: the locking mechanism (5) comprises a sliding plate (51), a locking pin (52) in sliding connection with the sliding plate (51) and a gear locking hole (53) arranged on the side part of the chair body (21), the sliding plate (51) is in sliding connection with the bottom of the sitting posture adjusting pad (22), a first elastic piece (54) is propped against the bottom of the sliding plate (51) and the bottom of the sitting posture adjusting pad (22), and the first elastic piece (54) is acted on the sliding plate (51) to enable the locking pin (52) to always have a trend of being inserted into the gear locking hole (53).

3. A child car safety seat according to claim 2, wherein: one end of the locking pin (52) is inserted into the gear locking hole (53), the other end of the locking pin (52) is provided with an upright post (521) perpendicular to the locking pin, the sliding plate (51) is provided with an inclined guide groove (511) which is arranged in a splayed shape, the upright post (521) stretches into the inclined guide groove (511), and when the sliding plate (51) slides, the sliding plate (51) drives the locking pin (52) to move along the inclined guide groove (511) through the inclined guide groove (511), so that the locking pin (52) is inserted into the gear locking hole (53) or pulled out of the gear locking hole (53).

4. A child car safety seat according to claim 2, wherein: the gear locking hole (53) comprises a first gear locking hole (531) and a second gear locking hole (532), and when the locking pin (52) is in plug-in fit with the first gear locking hole (531), the sitting posture adjusting pad (22) is positioned at a first position of the chair body (21); when the locking pin (52) is in plug-in fit with the second gear locking hole (532), the sitting posture adjusting pad (22) is located at the second position of the chair body (21).

5. A child car safety seat according to claim 2, wherein: the front end of the sliding plate (51) is provided with a first handle (6), and the bottom of the sitting posture adjusting pad (22) is provided with a second handle (7) which is arranged opposite to the first handle (6).

6. A child car safety seat according to claim 1, wherein: the quick connect mechanism (4) comprises:

the locking groove (41) is formed in the base (1), and the opening end of the locking groove (41) is upwards;

The locking block (42) is arranged corresponding to the locking groove (41), the locking block (42) is rotatably connected to the base (1), the locking block (42) is provided with a pressing linkage part (421) matched with the connecting rod (3), when the connecting rod (3) is placed in the locking groove (41), the connecting rod (3) drives the locking block (42) to rotate relative to the base (1) through the pressing linkage part (421) so as to close the locking groove (41), a second elastic piece (43) is connected between the locking block (42) and the base (1), and the second elastic piece (43) enables the locking block (42) to always have a trend of opening the locking groove (41);

The sliding shaft (44) is arranged corresponding to the locking block (42), the sliding shaft (44) is connected to the base (1) in an up-down sliding mode, the base (1) is provided with a third elastic piece (45) enabling the sliding shaft (44) to be always propped against the periphery of the locking block (42), the locking block (42) is provided with a limiting gap (422) matched with the sliding shaft (44), when the locking block (42) rotates towards the direction of closing the locking groove (41), the sliding shaft (44) slides relative to the periphery of the locking block (42) until the locking groove (41) is closed by the locking block (42), and the sliding shaft (44) slides into the limiting gap (422); and the unlocking plate (46) is used for driving the sliding shaft (44) to move out of the limit notch (422).

7. A child car safety seat according to claim 6, wherein: the unlocking plate (46) is provided with an inclined chute (461), the base (1) is provided with a vertical chute (11), the vertical chute (11) and the inclined chute (461) are arranged at an included angle, the sliding shaft (44) is arranged in the inclined chute (461) and the vertical chute (11) in a penetrating mode, and when the unlocking plate (46) slides, the sliding shaft (44) slides up and down along the vertical chute (11) under the guidance of the inclined chute (461).

8. A child car safety seat according to claim 1, wherein: the bottom of the chair body (2) is provided with an angle adjusting mechanism (8) for adjusting the inclination angle of the chair body (2) relative to the base (1).