CN113859068B - child safety seat - Google Patents

child safety seat Download PDF

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Publication number
CN113859068B
CN113859068B CN202111188556.4A CN202111188556A CN113859068B CN 113859068 B CN113859068 B CN 113859068B CN 202111188556 A CN202111188556 A CN 202111188556A CN 113859068 B CN113859068 B CN 113859068B
Authority
CN
China
Prior art keywords
base
child safety
safety seat
use state
automobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111188556.4A
Other languages
Chinese (zh)
Other versions
CN113859068A (en
Inventor
崔宗旺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wonderland Nurserygoods Co Ltd Hong Kong
Original Assignee
Wonderland Nurserygoods Co Ltd Hong Kong
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wonderland Nurserygoods Co Ltd Hong Kong filed Critical Wonderland Nurserygoods Co Ltd Hong Kong
Priority to CN202111188556.4A priority Critical patent/CN113859068B/en
Publication of CN113859068A publication Critical patent/CN113859068A/en
Application granted granted Critical
Publication of CN113859068B publication Critical patent/CN113859068B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • 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
    • B60N2/2824—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part part of the base being supported by the vehicle frame
    • 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
    • B60N2/2857—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child
    • B60N2/286—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child forward facing
    • 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
    • B60N2/2857—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child
    • B60N2/2863—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child backward facing
    • 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
    • B60N2/2872—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with side rests
    • 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
    • B60N2/2875—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially

Landscapes

  • 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 discloses a child safety seat which is detachably arranged on an automobile seat and comprises a body and a base, wherein the front end of the base is provided with a push rod which extends downwards and is supported on the automobile floor. The body is arranged on the base and can rotate to a forward use state or a backward use state relative to the base, the back of the body is propped against the back of the automobile seat in the forward use state, the distance between the front edge of the body and the upper surface of the automobile seat in the backward use state is H2, the distance between the handrail of the body and the upper surface of the automobile seat is H3, and the ratio range of H2 to H3 is 0.6-0.8. The ejector rod is supported on the automobile floor, and the distance ratio among the front edge of the body, the armrests and the upper surface of the automobile seat in the backward use state is set, so that stable supports can be formed at the front end and the rear end of the child safety seat, the child safety seat is prevented from being turned over in the backward use state, and the safety is improved; meanwhile, an anti-rebound member is not required to be arranged, so that the structure is simpler, and the operation is more convenient.

Description

Child safety seat
Technical Field
The invention relates to the technical field of child safety seats, in particular to a child safety seat capable of preventing overturning.
Background
Younger children cannot sit directly on car seats for safety reasons while riding, but need to install child safety seats on car seats. The child safety seat has two mounting modes of forward use and backward use on the automobile seat, and children in the safety seat face the front of the automobile when in forward use, and children in the safety seat face the backrest of the automobile when in backward use. In the backward use state, if the automobile encounters accidents such as collision, the safety seat can be turned over to the automobile seat, so that the child is injured. In order to avoid the safety seat from being turned over in the backward use state, EP00751035B1 discloses a child safety seat with an anti-rebound member, under which an anti-rebound member is provided, the anti-rebound member being supported against the backrest of the car seat, thereby supporting the safety seat against the backrest and effectively preventing the safety seat from being turned over backward.
However, the safety seat in the forward use state does not need to use an anti-rebound member, and the anti-rebound member needs to be folded up in the process of adjusting from the backward use state to the forward use state, so that the operation is inconvenient.
Therefore, in order to improve safety and operational convenience, it is necessary to provide a child safety seat capable of preventing rollover without providing an anti-rebound member.
Disclosure of Invention
The invention aims to provide a child safety seat capable of preventing overturning without providing an anti-rebound member.
In order to achieve the above-mentioned purpose, the invention provides a child safety seat detachably mounted on an automobile seat, comprising a body and a base, wherein the front end of the base is provided with a push rod extending downwards and supported on the automobile floor. The body is arranged on the base and can rotate to a forward use state or a backward use state relative to the base, the back of the body is propped against the back of the automobile seat in the forward use state, the distance between the front edge of the body and the upper surface of the automobile seat in the backward use state is H2, the distance between the handrail of the body and the upper surface of the automobile seat is H3, and the ratio of H2 to H3 is in the range of 0.6-0.8.
Compared with the prior art, the front end of the base of the child safety seat is provided with the ejector rod, the ejector rod is supported on the automobile floor, and meanwhile, the body of the child safety seat keeps abutting against the backrest of the automobile seat in the forward use state or the backward use state, so that the front end and the rear end of the child safety seat can be respectively supported, particularly in the backward use state, the distance between the front edge of the body and the upper surface of the automobile seat is H2, the distance between the handrail of the body and the upper surface of the automobile seat is H3, the ratio of H2 to H3 is in the range of 0.6-0.8, the child safety seat is more stable in use, the situation that the child safety seat turns over when an accident occurs to the automobile is effectively avoided, and the safety of the child safety seat is improved. Meanwhile, the child safety seat does not need to be provided with an anti-rebound member, so that the child safety seat is simpler in structure and more convenient to operate.
Preferably, the base is wedge-shaped and the thickness of the rear end is greater than the thickness of the front end.
Preferably, the included angle between the upper surface and the lower surface of the base is 15 degrees.
Preferably, under the backward use state, the front edge of body with car seat's back is inconsistent, makes children's safety seat more stable when backward use, and children's safety seat appears turning over the condition when effectively avoiding the car to appear unexpected accident, has improved children's safety seat's security.
Specifically, in a rearward use state, the front edge of the body is substantially flush with the rear end of the base in a vertical direction.
Preferably, the front edge of the body comprises two downwardly curved arches, the arches being interconnected.
Preferably, in the backward use state, an acute angle is formed between an extension line of the back surface of the body and the upper surface of the automobile seat, the body can swing back and forth relative to the base to change the size of the acute angle, and the movement track of the front edge of the body is arc-shaped in the swing process.
Specifically, the magnitude of the acute angle is in the range of 36 degrees to 42 degrees.
Specifically, front and rear ends of the base are respectively provided with a front chute and a rear chute, the front chute and the rear chute are both arc-shaped with two tilted ends, the bottom of the body is provided with a front connecting rod and a rear connecting rod, the body is borne on the base, and the front connecting rod and the rear connecting rod are respectively arranged in the front chute and the rear chute in a sliding manner.
More specifically, the both sides of base front end are provided with two front risers that rise respectively, have seted up preceding spout on two front risers respectively, and the both sides of base rear end are provided with two back risers that rise respectively, have seted up back spout on two back risers respectively, and the both ends of preceding connecting rod are located two preceding spouts respectively, and the both ends of back connecting rod are located two back spouts respectively.
Further, the locking mechanism is arranged at the bottom of the body and positioned between the two front vertical plates, the locking mechanism comprises an operating piece, a clamping piece and a follow-up piece, the operating piece can slide relative to the body, the follow-up piece is fixed with the body, the tail end of the front connecting rod penetrates through the follow-up piece and then stretches into the front sliding groove, a plurality of clamping holes are formed in the front vertical plates side by side, the operating piece pushes the clamping piece to penetrate through the follow-up piece and clamp into the clamping holes when sliding towards the body, and the operating piece pushes the clamping piece to be separated from the clamping holes when sliding outwards.
Preferably, the distance between the front edge of the body and the upper surface of the automobile seat in the forward use state is H1, the distance between the front edge of the body and the upper surface of the automobile seat in the backward use state is H2, and the ratio of H1 to H2 is in the range of 0.4-0.6.
Specifically, H1 has a size of 148mm.
Specifically, H2 is greater than or equal to 265mm.
Specifically, the sizes of H2 and H3 are 265mm and 375mm, respectively.
Drawings
Fig. 1 is a perspective view of a child safety seat of the present invention.
Fig. 2 is a perspective view of the child safety seat of the present invention in a forward use condition when mounted to a car seat.
FIG. 3 is a side view of the child safety seat of the present invention in a forward use condition when installed in an automobile seat.
Fig. 4 is a perspective view of the child safety seat of the present invention in a rearward use condition when mounted to a car seat.
Fig. 5 is a side view of the child safety seat of the present invention in a rearward use condition when mounted to a car seat.
Fig. 6 is a side view of the child safety seat body in a rearward use condition with a tilt angle of 42 degrees.
Fig. 7 is a side view of the child safety seat body in a rearward use condition with a tilt angle of 40 degrees.
Fig. 8 is a side view of the child safety seat body in a rearward use condition with a tilt angle of 38 degrees.
Fig. 9 is a side view of the child safety seat body in a rearward use condition with a 36 degree complement of tilt.
Fig. 10 is a schematic view of the front and rear links secured to the bottom of the body.
Fig. 11 is a schematic view of a front chute and a rear chute disposed on a base.
Fig. 12 is a schematic view of the locking mechanism in its set position on the base.
Fig. 13 is an exploded view of the locking mechanism.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present invention provides a child safety seat 1 which is detachably mounted on a car seat 2 to sit on and provide safety for a child. The child safety seat 1 includes a base 11 and a body 12 rotatably disposed on the base 11, and a child is seated in the body 12. After being mounted on the car seat 2, the body 12 can be rotated relative to the base 11 to a forward use state shown in fig. 2 or a backward use state shown in fig. 4. The child in the body 12 is facing forward of the vehicle in a forward use condition and the child in the body 12 is facing back 21 of the vehicle seat 2 in a rearward use condition.
The base 11 is in a wedge structure, the thickness of the rear end is larger than that of the front end, the lower surface of the base 11 is a plane approximately parallel to the horizontal direction, an included angle alpha is formed between the upper surface and the lower surface of the base 11, and the value of the included angle alpha is 15 degrees in the embodiment. The front end of the base 11 is provided with a push rod 13 extending downwards and supported on the automobile floor, and the push rod 13 can be provided with a telescopic structure, so that the push rod can be adjusted according to the height of the automobile seat 2 and can keep abutting against the automobile floor. The rear end of the base 11 is provided with two rearwardly extending docking arms 14, the docking arms 14 being inserted into ISOFIX interfaces (not shown) provided on the car seat 2 to lock the child safety seat 1 in place on the car seat 2.
The body 12 includes a back-plate 121 for children to lean against and two side plates 122 fixed on two sides of the back-plate 121, and the upper edges of the side plates 122 are armrests 123 for children to lean against. The front edge 124 of the body 12 is located between the two side panels 122, and the front edge 124 includes two downwardly curved arches 124a, the arches 124a being interconnected. The legs of the child may be placed at the arches 124a in the forward use position, respectively.
As shown in fig. 3, in the forward use state, the body 12 is directed forward, and the back surface 121 of the body 12 abuts against the backrest 21 of the car seat 2, and the distance between the front edge 124 of the body 12 and the upper surface of the car seat 2 is H1.
As shown in fig. 5, in the rearward use state, the body 12 is directed rearward, with the front edge 124 being substantially flush with the rear end of the base 11 in the vertical direction. The distance between the front edge 124 and the upper surface of the car seat 2 is H2, and the distance between the armrest 123 and the upper surface of the car seat 2 is H3. Because the base 11 is a wedge-shaped structure with an angle α of 15 degrees between the upper and lower surfaces, the front edge 124 of the body 12 gradually rises during rotation from the forward use state to the rearward use state, so that H2 is greater than H1. And in the backward use state, the front edge 124 is abutted against the backrest 21 of the automobile seat 2, so that the child safety seat 1 is more stable in the backward use, the situation that the child safety seat 1 is turned over when an accident occurs to the automobile is effectively avoided, and the safety of the child safety seat 1 is improved. Since the front edge 124 is formed by connecting two arches 124a, the contact area between the front edge 124 and the backrest 21 is large, and a large friction force exists between the two. The provision of the front edge 124 in the shape of two arches 124a, as opposed to a rectilinear front edge 124, is advantageous for increasing the stability of the body 12 against the backrest 21.
In order to ensure that the body 12 can be propped against the backrest 21 in the forward and backward use states and ensure the safety and comfort of children in the body 12, the ratio of H1 to H2 is set in the range of 0.4-0.6, and the ratio of H2 to H3 is set in the range of 0.6-0.8. Specifically, H2 is greater than or equal to 265mm, and only if H2 meets this value, it is ensured that the front edge 124 has a sufficient height to interfere with the backrest 21. In this embodiment, the sizes of H1, H2 and H3 are 148mm, 265mm and 375mm, respectively.
Referring to fig. 6 to 9, the body 12 may swing back and forth with respect to the base 11 to change the inclination angle. An acute angle is formed between the extension line of the back-plate 121 of the body 12 and the upper surface of the car seat 2 in the backward use state, and the acute angle is defined as an inclination complement angle β, and a smaller value of the inclination complement angle β indicates a larger inclination degree of the body 12 relative to the base 11. Limiting the magnitude of the inclination supplemental angle β to a range of 36 degrees to 42 degrees ensures that the body 12 does not swing to a greater degree of inclination, thereby reducing the risk of the child safety seat 1 tipping over without providing an anti-rebound member. The magnitudes of the inclination complementary angles β shown in fig. 6 to 9 are 42 degrees, 40 degrees, 38 degrees, and 36 degrees, respectively.
In the backward use state, the movement track of the front edge 124 of the body 12 is in a circular arc shape during the swinging process, so that the front edge 124 always maintains a similar contact distance with the backrest 21 during the movement process. Ensuring that the front edge 124 can act as an anti-rebound member.
As shown in fig. 10 to 12, the base 11 is provided with an arc-shaped seat 111 extending in the front-rear direction of the child safety seat 1 and having two ends tilted, and the body 12 is supported on the arc-shaped seat 111. Two sides of the front end of the arc-shaped seat 111 are respectively provided with two vertical front vertical plates 112, and two sides of the rear end of the arc-shaped seat 111 are respectively provided with two vertical rear vertical plates 113. The two front vertical plates 112 are respectively provided with a front chute 112a, the two rear vertical plates 113 are respectively provided with a rear chute 113a, and the front chute 112a and the rear chute 113a are both in an arc shape with two tilted ends. The bottom of the body 12 is provided with a front connecting rod 125 and a rear connecting rod 126, two ends of the front connecting rod 125 are respectively accommodated in the two front sliding grooves 112a in a sliding manner, and two ends of the rear connecting rod 126 are respectively accommodated in the two rear sliding grooves 113a in a sliding manner. By accommodating the connecting rod at the bottom of the body 12 in the sliding groove on the base 11, the body 12 can slide on the base 11, and the movement track of the front edge 124 is arc-shaped in the process of swinging the body 12 relative to the base 11.
Referring to fig. 10 to 13, the child safety seat 1 further includes a locking mechanism 15, where the locking mechanism 15 is disposed between the body 12 and the base 11 and can lock the body 12 on the base 11 so that the body 12 cannot slide relative to the base 11, and the body 12 can slide freely after the locking mechanism 15 is unlocked. In this embodiment, the locking mechanism 15 is disposed at the bottom of the body 12 and between the front risers 112. The two front vertical plates 112 are respectively provided with a plurality of engaging holes 112b in parallel for locking the locking mechanism 15, and the plurality of engaging holes 112b in parallel are positioned below the front chute 112 a. The locking mechanism 15 includes a follower 151, an operating member 152, two driving members 153, and two engaging members 154 having a U-shaped structure.
The follower 151 is fixed at the bottom of the body 12 and slides between the two front risers 112 along with the body 12, the follower 151 includes two side portions 151a, and each side portion 151a is provided with an upper through hole 151b and two lower through holes 151c located below the upper through hole 151 b. Both ends of the front link 125 pass through the upper through holes 151b on the both side portions 151a and then extend into the two front slide grooves 112 a. The follower 151 is further provided with two engaging grooves 151d between the both side portions 151a and a protruding guide post 151e between the two engaging grooves 151 d. The engagement groove 151d extends in the left-right direction of the child safety seat 1. The two driving members 153 are slidably disposed in the two engaging sliding grooves 151d, one end of the driving member 153 away from the corresponding side portion 151a is provided with a protruding driving post 153a, and one end of the driving member 153 close to the corresponding side portion 151a is provided with a positioning groove 153b. The middle part of the engaging member 154 is accommodated in the positioning groove 153b of the corresponding driving member 153, and the two arms of the engaging member 154 can pass through and engage into the two engaging holes 112b of the front vertical plate 112 from the two lower through holes 151c of the corresponding side portions 151 a. After the engaging member 154 is engaged with the engaging hole 112b, the follower 151 is locked on the base 11, so that the body 12 cannot slide relative to the base 11.
The operating member 152 is slidably disposed at the bottom of the body 12, and the sliding direction is the front-rear direction of the child safety seat 1, the operating member 152 is a pull handle, and a guiding slot 152a and two driving inclined slots 152b located at two sides of the guiding slot 152a are disposed at the rear end of the operating member 152. The guide post 151e is positioned within the guide slot 152a to define the sliding direction of the operating member 152 relative to the body 12. The two driving chute 152b are respectively located above the two driving members 153, and the driving posts 153a inside the two driving members 153 respectively extend into the two driving chute 152b. When the operation member 152 slides into the body 12, the driving chute 152b and the driving column 153a cooperate to drive the two driving members 153 to slide outwards, so as to drive the two clamping members 154 to pass through the side portions 151a and clamp into the clamping holes 112b respectively, thereby realizing locking; when the operating member 152 slides out of the body 12, the two driving members 153 are driven to slide inwards, so that the engaging member 154 is driven to retract and disengage from the engaging hole 112b, and unlocking is achieved. The unlocked main body 12 slides together with the locking mechanism 15 relative to the base 11, and after a certain angle of sliding, the position of the engaging member 154 opposes the other engaging hole 112b and is again engaged and locked when the operating member 152 slides inward.
The locking mechanism 15 further comprises a first return spring 155 and two second return springs 156. The operation member 152 is provided with a protruding positioning column 152c, the first return spring 155 is a tension spring, two ends of the first return spring 155 are respectively hooked on the guide column 151e and the positioning column 152c, and the first return spring 155 pulls the operation member 152 inwards, so that the locking mechanism 15 is kept in a locked state. The two second return springs 156 are respectively disposed between the two driving members 153 and the follower 151, and the second return springs 156 push the driving members 153 outwards, so that the engaging members 154 are kept engaged in the engaging holes 112 b.
Compared with the prior art, the front end of the base 11 of the child safety seat 1 is provided with the ejector rod 13, the ejector rod 13 is supported on the automobile floor, and meanwhile, the body 12 of the child safety seat 1 keeps abutting against the backrest 21 of the automobile seat 2 in both the forward use state and the backward use state, so that the front end and the rear end of the child safety seat 1 can be respectively supported, particularly in the backward use state, the distance between the front edge 124 of the body 12 and the upper surface of the automobile seat 2 is H2, the distance between the handrail 123 of the body 12 and the upper surface of the automobile seat 2 is H3, the ratio of the H2 to the H3 is in the range of 0.6-0.8, the child safety seat 1 is more stable in use, the situation that the child safety seat 1 turns over in the automobile driving process is effectively avoided, and the safety of the child safety seat 1 is improved. Meanwhile, the child safety seat 1 does not need to be provided with an anti-rebound member, and is simpler in structure and more convenient to operate.
The foregoing disclosure is illustrative of the present invention and is not to be construed as limiting the scope of the invention, but is for the convenience of those skilled in the art to understand and practice the invention, and therefore, equivalent variations to the appended claims are intended to be encompassed by the present invention.

Claims (12)

1. A child safety seat detachably mountable to a car seat, characterized by: the automobile floor comprises a body and a base, wherein the front end of the base is provided with a push rod which extends downwards and is supported on an automobile floor, the base is wedge-shaped, and the thickness of the rear end of the base is larger than that of the front end of the base;
the body is arranged on the base and can rotate to a forward use state or a backward use state relative to the base, the back of the body is propped against the backrest of the automobile seat in the forward use state,
in the backward use state, the front edge of the body is approximately flush with the rear end of the base in the vertical direction; the front edge of the body is abutted against the backrest of the automobile seat;
the distance between the front edge of the body and the upper surface of the automobile seat in the backward use state is H2, the distance between the handrail of the body and the upper surface of the automobile seat is H3, and the ratio of H2 to H3 is in the range of 0.6-0.8.
2. The child safety seat according to claim 1, wherein: the included angle between the upper surface and the lower surface of the base is 15 degrees.
3. The child safety seat according to claim 1, wherein: the front edge of the body comprises two downwardly curved arches, which are interconnected.
4. The child safety seat according to claim 1, wherein: under the backward use state, an acute angle is formed between an extension line of the back surface of the body and the upper surface of the automobile seat, the body can swing back and forth relative to the base to change the size of the acute angle, and the movement track of the front edge of the body is arc-shaped in the swing process.
5. The child safety seat according to claim 4, wherein: the acute angle is in the range of 36-42 degrees.
6. The child safety seat according to claim 4, wherein: the front end and the rear end of the base are respectively provided with a front chute and a rear chute, the front chute and the rear chute are both arc-shaped, the two ends of which are tilted, the bottom of the body is provided with a front connecting rod and a rear connecting rod, the body is borne on the base, and the front connecting rod and the rear connecting rod are respectively arranged in the front chute and the rear chute in a sliding manner.
7. The child safety seat according to claim 6, wherein: two sides of the front end of the base are respectively provided with two vertical front vertical plates, the two front vertical plates are respectively provided with the front sliding chute, two sides of the rear end of the base are respectively provided with two vertical rear vertical plates, the two rear vertical plates are respectively provided with the rear sliding grooves, two ends of the front connecting rod are respectively positioned in the two front sliding grooves, and two ends of the rear connecting rod are respectively positioned in the two rear sliding grooves.
8. The child safety seat according to claim 7, wherein: the locking mechanism comprises an operating piece, a clamping piece and a follow-up piece, wherein the operating piece can slide relative to the body, the follow-up piece is fixed with the body, the tail end of the front connecting rod penetrates through the follow-up piece and then stretches into the front sliding groove, a plurality of clamping holes are formed in the front vertical plate side by side, the operating piece pushes the clamping piece to penetrate through the follow-up piece and clamp into the clamping holes when sliding in the body, and the operating piece pushes the clamping piece to separate from the clamping holes when sliding outside the body.
9. The child safety seat according to claim 1, wherein: the distance between the front edge of the body and the upper surface of the automobile seat in the forward use state is H1, the distance between the front edge of the body and the upper surface of the automobile seat in the backward use state is H2, and the ratio of H1 to H2 is in the range of 0.4-0.6.
10. The child safety seat according to claim 9, wherein: the H1 has a size of 148mm.
11. The child safety seat according to claim 1, wherein: the H2 is greater than or equal to 265mm.
12. The child safety seat according to claim 1, wherein: the sizes of H2 and H3 are 265mm and 375mm respectively.
CN202111188556.4A 2016-03-08 2016-03-08 child safety seat Active CN113859068B (en)

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CN202111188556.4A Active CN113859068B (en) 2016-03-08 2016-03-08 child safety seat
CN201610130716.2A Active CN107161045B (en) 2016-03-08 2016-03-08 Child safety seat
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DE102017203726B4 (en) 2020-06-04
GB2592834A (en) 2021-09-08
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GB2592833A (en) 2021-09-08
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CN113859067A (en) 2021-12-31
DE102017203726A1 (en) 2017-09-14
CN113859066B (en) 2024-01-16
CN113859066A (en) 2021-12-31
CN107161045A (en) 2017-09-15
GB201703561D0 (en) 2017-04-19
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CN107161045B (en) 2021-11-09
GB2549837B (en) 2021-08-04

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