CN108749664B - Child safety seat with steel skeleton structure and application method thereof - Google Patents
Child safety seat with steel skeleton structure and application method thereof Download PDFInfo
- Publication number
- CN108749664B CN108749664B CN201810795324.7A CN201810795324A CN108749664B CN 108749664 B CN108749664 B CN 108749664B CN 201810795324 A CN201810795324 A CN 201810795324A CN 108749664 B CN108749664 B CN 108749664B
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- Prior art keywords
- shoulder strap
- seat
- lock frame
- hole
- unlocking
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
-
- 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
- B60N2/2803—Adaptations for seat belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2821—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
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a child safety seat with a steel skeleton structure and a use method thereof. The headrest part is positioned above the seat part through a headrest pull plate capable of sliding up and down; the headrest part and the chair body part are all arranged on the steel framework structure part; the steel skeleton structure part is arranged on the base fixing frame; the steel skeleton structure part comprises a bending beam and a chair body fixing seat, and the bending beam is arranged on the chair body fixing seat; according to the invention, the base fixing frame and the steel skeleton structure part are designed to be detachable and separated, so that the child safety seat can be installed in forward and reverse directions; the bending beam is convenient for adjusting the angle of the child safety seat, improves the riding comfort of children, and has good impact resistance and rigidity; the back cushion structure facilitates the adjustment of the angle of the child seat; the ISOFIX interface unlocking structure of the child safety seat with the false triggering prevention function is designed, and the safety of children is guaranteed.
Description
Technical Field
The invention relates to the field of manufacturing of child safety seats, in particular to a child safety seat with a steel skeleton structure and a use method thereof.
Background
The automobile child safety seat is also called a child restraint system CRS (Child Restraint System), and is a seat which is specially designed for children of different ages (or weights), is installed in an automobile and can effectively improve the riding safety of the children. Existing child safety seats include a base portion secured to the car seat and a seat body removably mounted to the base. The detachable design of the base part and the seat body can well meet the use requirement of a user, and the user can install the chair back part positively or reversely according to the age of the child.
In addition, the seat body of the child safety seat can be designed into an angle-adjustable structure relative to the base, so that the child safety seat is convenient for infants with different heights in all age groups to sit comfortably on the child safety seat, and the infants can be effectively ensured to sit correctly on the child safety seat, thereby providing safety guarantee for the infants to sit on the child safety seat; but the existing child safety seat back angle adjusting mechanism has various structural designs and different operation modes.
The Chinese patent of the utility model with the application number of 201621353587.5: the safety seat base unlocked by one key can realize mutual separation of the base part and the seat body, but the base structural design is complex, the locking and unlocking assembly of the base part and the seat body adopts a push switch to unlock, and potential safety hazards of misoperation of passengers exist.
The Chinese patent of the utility model with the application number of 201621384736.4: the child safety seat with the adjustable angle is characterized in that an adjusting structure is arranged between the seat body and the base and comprises a handle, a gear groove and a lock pin, and the handle is pulled to drive the seat body to move into different gear grooves, so that the seat angle is adjusted. However, the structure has the defects of laborious operation, inconvenience, inflexible angle adjusting range and the like.
In addition, among the prior art, when most children's seat was placed on the car seat, the back of the chair of its children's safety seat directly contacted with car seat's back portion, can cause like this when children's safety seat sits standing or lying angle modulation, and the operation is inconvenient, and the back of the chair of children's safety seat contacts friction with car seat's back portion in addition, can also cause the life of both to reduce.
In summary, it is necessary to design a child safety seat that can facilitate the detachment and separation of the seat body and the base portion of the child seat, and that can facilitate the adjustment of the angle of the seat body relative to the base portion, and that can greatly improve the usability of the user.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, provides the child safety seat with the steel skeleton structure, which has reasonable structural design, can conveniently detach and separate the seat body and the base part of the child seat, can conveniently adjust the angle of the seat body relative to the base, and provides a specific use method.
The invention solves the problems by adopting the following technical scheme: a child safety seat with a steel skeleton structure comprises a headrest part and a seat body part, wherein the headrest part is positioned above the seat part through a headrest pulling plate capable of sliding up and down; the method is characterized in that: the device also comprises a steel skeleton structure part and a base fixing frame; the headrest part and the chair body part are all arranged on the steel framework structure part; the steel skeleton structure part is arranged on the base fixing frame; the steel skeleton structure part comprises a bending beam and a chair body fixing seat; two fixed shafts are oppositely arranged at the lower part of the chair body fixing seat; the seat body fixing seat is provided with a through hole, a first supporting rod and a second supporting rod are arranged at two ports close to the through hole, and the first supporting rod and the second supporting rod are horizontally arranged and are perpendicular to the extending direction of the through hole; the first support rod and the second support rod divide the through hole into an upper space and a lower space; the bending beam penetrates through the through hole and is positioned on the first supporting rod and the second supporting rod, namely the upper space of the through hole, a first limit nail, a second limit nail and a plurality of adjusting holes are arranged on the side surface of the bending beam, which is in contact with the first supporting rod and the second supporting rod, and the adjusting holes are positioned between the first limit nail and the second limit nail; an angle adjusting handle is arranged below the lower space of the through hole, namely the first support rod and the second support rod; one end of the angle adjusting handle is connected with a tension spring, the tension spring is fixedly connected with the chair body fixing seat, and the other end of the angle adjusting handle extends out of the chair body fixing seat; the angle adjusting handle is provided with a first chute which is arc-shaped, an angle adjusting pin is connected to the first chute, and the angle adjusting pin is locked in an adjusting hole on the bending beam when the seat is in an adjusted state; the base fixing frame comprises a first cross beam, a second cross beam, a first lock frame, a second lock frame, a lock frame connecting rod, a wrench, a base upper cover and a limiting rod; the first cross beam and the second cross beam are oppositely arranged, both ends of the lower part of the first cross beam and the second cross beam are respectively provided with a groove-shaped support, and two side surfaces of the support are provided with horizontal guide sliding grooves; the two ends of the first lock frame are placed in the supports on the same side of the two oppositely arranged cross beams, and the two ends of the second lock frame are placed in the supports on the other same side of the two oppositely arranged cross beams; two groups of lock hooks are arranged at the upper parts of the first lock frame and the second lock frame, and a limit groove is formed at the lower part of the first lock frame and the second lock frame; the lock frame connecting rod is arranged on a horizontal guide chute on the side surface of the support at two ends of the lower part of the first cross beam, and two ends of the lock frame connecting rod are respectively connected with the first lock frame and the second lock frame; the middle part of the lock frame connecting rod is connected with a spanner; the base upper cover is arranged on the first beam and the second beam, is provided with a groove, and is provided with two touch key holes and two spring holes; a touch key is arranged in the touch key hole, and a semicircular groove is arranged at the lower part of the touch key; a first tension spring is arranged in the spring hole along the vertical direction, the upper end of the first tension spring is fixedly connected with the upper cover of the base, and the lower end of the first tension spring is connected with the limiting rod; the gag lever post is placed in the lower part of first lock frame and second lock frame along the direction parallel with first crossbeam to when lock frame unblock state, the both ends card of gag lever post is to the spacing inslot of first lock frame and second lock frame lower part, and the middle part card of gag lever post is to the semicircle inslot of feeler key lower part.
Preferably, the headrest pulling plate of the headrest part is provided with a shoulder strap adjusting, fixing and quick-dismantling structure; comprises a first shoulder strap shaft adjusting piece, a second shoulder strap shaft adjusting piece, a shoulder strap shaft, a fastening strip and a spring steel sheet; the first shoulder strap shaft adjusting piece is connected with the second shoulder strap shaft adjusting piece, and is arranged oppositely, the middle parts of the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are respectively provided with a through hole, and the bottoms of the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are respectively provided with a clamping groove; the shoulder strap shaft passes through the through holes on the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece and is placed on the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece; the spring steel sheet is in bending butt joint between the shoulder strap shaft and the first shoulder strap shaft adjusting piece and between the spring steel sheet and the second shoulder strap shaft adjusting piece; the fastening strip is arranged at the upper part of the joint of the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece, one end of the fastening strip is connected with the first shoulder strap shaft adjusting piece, and the other end of the fastening strip is connected with the second shoulder strap shaft adjusting piece in a matched mode.
Preferably, the back of the chair body part is provided with a back cushion structure; the back cushion structure consists of a left side surface, a right side surface and an upper side surface; the upper side body is arc-shaped and covers the left side surface and the right side surface; a first fixing device is arranged at the contact surface of the upper side surface and the chair back part; the middle part of the upper side surface is provided with a through hole, and a second fixing device is arranged in the through hole.
Preferably, two sides of the base fixing frame are provided with an ISOFIX interface unlocking structure with an error triggering prevention function of the child safety seat, and the ISOFIX interface unlocking structure comprises a standard ISOFIX short interface, an interface extension rod, an unlocking handle, an unlocking pulling button, an interface connecting block and a pressure spring; the interface extension rod is internally provided with a cavity, and a slotted hole is formed in the cavity; the standard ISOFIX short interface is connected with one end of the interface extension rod; the unlocking handle is arranged in a cavity of the interface extension rod and is connected with a standard ISOFIX short joint port, and a handle part of the unlocking handle is positioned in the slot hole; the interface connecting block is arranged at one end inside the interface extension rod; the unlocking pulling button is slidably arranged in a cavity of the interface extension rod, is connected with the interface connecting block through a pressure spring, and closes and opens the slotted hole through sliding motion.
Preferably, three cross beams are arranged on the bending beam of the steel skeleton structure part.
Preferably, the angle adjusting handle is also provided with a second chute, a third supporting rod is arranged in the second chute, and two ends of the third supporting rod are connected with the chair body fixing seat; the angle adjusting handle is provided with a groove at one end extending out of the chair body fixing seat.
Preferably, tension springs II are arranged at the matched and connected parts of the first lock frame and the second lock frame and the supports at the two ends of the lower part of the first cross beam; one end of the second tension spring is connected with the support, and the other end of the second tension spring is connected with the lock frame.
Preferably, the first lock frame and the second lock frame are connected with the supports at two ends of the lower part of the second cross beam through pin shafts, and cotter pins are arranged at one ends of the pin shafts.
Preferably, the upper end of the tension spring I is fixed in the spring hole through a cylindrical pin, and a spring hole cover is arranged at the upper part of the spring hole.
Preferably, the through hole of the chair body fixing seat is also provided with an upward pulling strap fixing rod, and the top of the upper side surface of the back cushion structure is provided with a channel structure which can enable the upward pulling strap to pass through from top to bottom.
In order to solve the technical problems, the invention also provides another technical scheme: a method of using a child safety seat having a steel skeleton structure, comprising: the locking and unlocking method comprises a locking and unlocking method of a steel skeleton structure part and a base fixing frame, a chair body angle adjusting method, a using method of a shoulder strap adjusting, fixing and quick-dismantling structure, a using method of an ISOFIX interface unlocking structure of the child safety seat with an anti-false triggering function and a fixing method of an upper pull strap;
(1) Locking and unlocking method for steel skeleton structure part and base fixing frame
The locking method comprises the following specific steps:
1) Placing a chair body fixing seat of the steel skeleton structure part into a groove in a base upper cover of a base fixing frame;
2) The two touch keys in the upper cover of the base are pressed downwards by the fixed seat of the chair body, so that the limiting rod is pushed downwards, and the limiting rod is separated from the limiting grooves at the lower parts of the first lock frame and the second lock frame;
3) The first lock frame and the second lock frame move towards the direction of the wrench under the action of the tension force of the tension spring II, and at the moment, the lock hooks on the first lock frame and the second lock frame clamp the fixed shaft on the chair body fixing seat, and the wrench is pressed down to finish locking;
the unlocking method comprises the following specific steps:
1) Pulling open the wrench, and driving the first lock frame and the second lock frame to move away from the wrench by the wrench through the lock frame connecting rod;
2) The lock hooks on the first lock frame and the second lock frame are separated from the fixed shaft on the chair body fixing seat;
3) The steel skeleton structure part is disassembled, at the moment, the fixed seat of the chair body does not act on pressure on two touch keys in the upper cover of the base any more, namely the touch keys do not push the limiting rod downwards, and the limiting rod moves upwards into the limiting grooves at the lower parts of the first lock frame and the second lock frame under the action of the tension spring I, so that unlocking is completed;
(2) Chair body angle adjusting method
1) Pulling the angle adjusting handle to enable the angle adjusting pin to move out of the adjusting hole;
2) Pulling forward or pushing backward the chair body;
3) The angle adjusting handle is loosened, the angle adjusting handle can reset under the tension of the tension spring, and two conditions exist at the moment, wherein the first condition is that the angle adjusting handle resets to drive the angle adjusting pin to be just inserted into the adjusting hole, so that the framework bending beam is fixed on the chair body fixing seat; the second condition is that the angle adjusting handle is reset to drive the angle adjusting pin to be unable to be inserted into the adjusting hole, at the moment, the chair body is slightly moved back and forth, so that the angle adjusting pin is inserted into the adjusting hole, and the angle adjustment of the chair body is completed;
(3) Use method of shoulder strap adjusting, fixing and quick-dismantling structure
1) The fixing method comprises the following steps: the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are buckled into corresponding clamping grooves on the headrest pull plate, and the buckling strips are pressed down, so that the spring steel sheet is in a bending state, and a pressing force is provided for the shoulder strap shaft, so that the shoulder strap shaft is tightly attached to the corresponding clamping grooves on the headrest pull plate;
2) The quick-dismantling method comprises the following steps: lifting the spanner to ensure that the fastening strip does not press the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece any more, and at the moment, the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are rapidly opened under the elastic action of the spring steel sheet to detach the whole shoulder strap adjusting, fixing and quick-dismantling structure from the headrest pulling plate;
(4) Application method of ISOFIX interface unlocking structure of child safety seat with false triggering prevention function
1) The standard ISOFIX short interfaces arranged on two sides of the base fixing frame are buckled into interfaces at the rear part of the automobile seat, namely the child safety seat is fixed on the automobile seat, at the moment, the unlocking pulling button moves in a direction away from the standard ISOFIX short interfaces under the action of the elastic force of the pressure spring, and the bottoms of slotted holes on the ISOFIX interface unlocking structure are covered;
2) The unlocking pulling button is pulled in a direction close to the standard ISOFIX short interface, the unlocking pulling button does not cover the bottom of the slotted hole any more, the unlocking handle is exposed, an operator stretches into a finger to pull the unlocking handle, and the standard ISOFIX short interface is separated from an interface at the rear part of the automobile seat;
(5) Fixing method for pull-up belt
1) An upper pull belt fixing rod for fixing one end of the upper pull belt in the chair body fixing seat;
2) The other end of the upward pulling belt passes through a channel structure which is arranged at the top of the upper side surface of the back cushion structure and can enable the upward pulling belt to pass through from top to bottom, and the upward pulling belt is fixed at a fixed anchor point above the automobile seat.
Compared with the prior art, the invention has the following advantages and effects:
(1) The base fixing frame and the steel skeleton structure part can be disassembled and separated: the child safety seat can be installed in the forward and reverse directions, the seat body fixing seat of the steel skeleton structure part is placed on the base fixing frame, automatic locking can be realized, the base is firmly connected with the seat back, and the riding safety of children is improved;
(2) Design of a bending beam of a steel skeleton structure part: the bending beam is suitable for mounting the child safety seat components such as a headrest, a seat body and the like produced by using a blow molding or injection molding process, the angle of the child safety seat is convenient to adjust, the riding comfort of the child is improved, and the bending beam has good impact resistance and rigidity;
(3) The back cushion structure is designed at the rear part of the chair body part: the seat body part of the child safety seat is not in direct contact with the automobile seat, so that the angle of the child safety seat can be conveniently adjusted;
(4) The ISOFIX interface unlocking structure of the child safety seat with the false triggering prevention function is designed: through designing the unlocking pulling button, if the unlocking pulling button is required to be pulled to one side before the unlocking handle is pulled, the unlocking pulling button does not cover the bottom of the slotted hole any more, and the unlocking handle is exposed at the moment, so that the unlocking handle can be operated to unlock, thereby preventing children or other personnel from misoperation of the unlocking handle to enable the child safety seat to be separated from the automobile seat to a great extent, and guaranteeing the safety of the children;
(5) The fixed point of one end of the pull-up belt is designed on the seat body fixing seat: when the child safety seat is used for adjusting the angle of the chair back, the pull-up belt does not need to be loosened; compared with the prior art that the upper pull belt is fixed on the chair back, the upper pull belt is fixed on the chair body fixing seat, and the upper pull belt has the advantages of being more stable and reliable.
Drawings
Fig. 1 is a schematic diagram of a front view structure of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a headrest portion and a seat portion removed in accordance with an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a base fixing frame according to an embodiment of the invention.
Fig. 4 is an exploded view of a base mount according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a front view structure of a base fixing frame according to an embodiment of the present invention.
Fig. 6 is a schematic view of a steel skeleton structure portion of an embodiment of the present invention.
Fig. 7 is a schematic diagram of a locked state structure of a base fixing frame in an embodiment of the invention.
Fig. 8 is a schematic diagram of an unlocked state structure of a base fixing frame in an embodiment of the invention.
Fig. 9 is a schematic cross-sectional view of an angle adjustment knob in an embodiment of the invention.
Fig. 10 is a schematic view showing an adjustable fixing and quick-release structure of a shoulder strap on a headrest stay plate of a headrest portion according to an embodiment of the present invention.
Fig. 11 is a schematic perspective view of an adjustable fixing and quick-release structure of a shoulder strap according to an embodiment of the present invention.
Fig. 12 is a schematic top view of the base mount of fig. 1 with the base mount removed.
Fig. 13 is a schematic view of the cross-sectional structure A-A of fig. 12.
Fig. 14 is a schematic perspective view of an unlocking structure of an ISOFIX interface of a child safety seat with a false triggering prevention function in an embodiment of the present invention.
Fig. 15 is a schematic front view of an unlocking structure of an ISOFIX interface of a child safety seat with a false triggering prevention function.
Fig. 16 is a schematic top view of an unlocking structure of an ISOFIX interface of a child safety seat with a false triggering prevention function.
Fig. 17 is a schematic view of the B-B cross-sectional structure of fig. 16.
FIG. 18 is a schematic view of a fixing structure of a pull-up strap according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Referring to fig. 1 to 18, a child safety seat having a steel skeleton structure according to an embodiment of the present invention includes a headrest portion 6, a seat body portion 7, a steel skeleton structure portion 2, and a base mount 1. The headrest portion 6 is located above the seatback portion 7-1 in the seat portion 7 by a headrest stay 6-1 that can slide up and down. The headrest part 6 and the chair body part 7 are both arranged on the steel skeleton structure part 2; the steel skeleton structure part 2 is arranged on the base fixing frame 1.
The base fixing frame 1 comprises a first cross beam 1-1, a second cross beam 1-2, a first lock frame 1-3, a second lock frame 1-4, a lock frame connecting rod 1-5, a spanner 1-6, a base upper cover 1-7 and a limiting rod 1-8.
The first cross beam 1-1 and the second cross beam 1-2 are oppositely arranged, two ends of the lower part of the first cross beam are welded with groove-shaped supports 1-9, and two side surfaces of each support 1-9 are provided with horizontal guide sliding grooves 1-20.
The two ends of the first lock frame 1-3 are arranged in the supports 1-9 on the same side of the two oppositely arranged cross beams; the two ends of the second lock frame 1-4 are placed in the support seats 1-9 on the other same side of the two oppositely arranged cross beams.
The matched and connected parts of the first lock frame 1-3 and the second lock frame 1-4 and the supports at the two ends of the lower part of the first cross beam 1-1 are respectively provided with a tension spring II 1-12. One end of the tension spring II 1-12 is connected with the support 1-9, and the other end is connected with the lock frame.
The first lock frame 1-3 and the second lock frame 1-4 are connected with the supports 1-9 at the two ends of the lower part of the second cross beam 1-2 through pin shafts 1-15, and cotter pins 1-16 are arranged at one ends of the pin shafts.
The upper parts of the first lock frame 1-3 and the second lock frame 1-4 are respectively provided with two groups of lock hooks 1-10, and the lower parts of the first lock frame and the second lock frame are provided with limit grooves 1-11.
Two ends of a lock frame connecting rod 1-5 are arranged on horizontal guide sliding grooves 1-20 on the side surfaces of supporting seats 1-9 at two ends of the lower part of a first cross beam 1-1, and two ends of the lock frame connecting rod 1-5 are respectively connected with a first lock frame 1-3 and a second lock frame 1-4; the middle part of the lock frame connecting rod 1-5 is connected with a spanner 1-6.
The base upper cover 1-7 is placed on the first beam 1-1 and the second beam 1-2, is provided with a groove, and is provided with two contact key holes 1-18 and two spring holes 1-17. The positions of the two contact holes 1-18 and the two spring holes 1-17 are on the same straight line. The touch key holes 1-18 are internally provided with touch keys 1-13, and the lower parts of the touch keys 1-13 are provided with semicircular grooves. Tension springs 1-19 are arranged in the spring holes 1-17 along the vertical direction. The upper end of the tension spring I1-19 is fixed in the spring hole 1-17 through a cylindrical pin which is horizontally arranged, and a spring hole cover 1-14 is arranged at the upper part of the spring hole 1-17; the lower end of the tension spring I1-19 is connected with the limit rod 1-8.
The limiting rods 1-8 are placed at the lower parts of the first lock frame 1-3 and the second lock frame 1-4 along the direction parallel to the first cross beam 1-1, and when the lock frames are in an unlocking state, two ends of the limiting rods 1-8 are clamped into limiting grooves 1-11 at the lower parts of the first lock frame 1-3 and the second lock frame 1-4, and the middle parts of the limiting rods 1-8 are clamped into semicircular grooves at the lower parts of the touch keys 1-13.
The steel skeleton structure part 2 comprises a bending beam 3 and a chair body fixing seat 4.
The chair body fixing seat 4 is provided with a through hole 4-1, two end ports close to the through hole 4-1 are provided with a first supporting rod 4-2 and a second supporting rod 4-3, and the first supporting rod 4-2 and the second supporting rod 4-3 are horizontally arranged and perpendicular to the extending direction of the through hole 4-1. The first support bar 4-2 and the second support bar 4-3 divide the through hole 4-1 into upper and lower spaces.
The bending beam 3 passes through the through hole 4-1 and is positioned on the first support rod 4-2 and the second support rod 4-3, namely is positioned in the upper space of the through hole 4-1, a first limit nail 3-1, a second limit nail 3-2 and a plurality of adjusting holes 3-3 are arranged on the side surface of the bending beam 3, which is contacted with the first support rod 4-2 and the second support rod 4-3, and a plurality of adjusting holes 3-3 are positioned between the first limit nail 3-1 and the second limit nail 3-2. When the chair back is pulled to move forwards or backwards, the first supporting rod 4-2 plays a limiting role on the first limiting nail 3-1 to prevent the chair back from moving forwards excessively; the second supporting rod 4-3 plays a limiting role on the second limiting nail 3-2 to prevent the chair back from excessively moving backwards.
An angle adjusting handle 5 is arranged below the lower space of the through hole 4-1, namely the first support rod 4-2 and the second support rod 4-3. One end of the angle adjusting handle 5 is connected with a tension spring 5-1, and the tension spring 5-1 is fixedly connected with the chair body fixing seat 4; the other end of the angle adjusting handle 5 extends out of the chair body fixing seat 4.
The angle adjusting handle 5 is provided with a first chute 5-2, the first chute 5-2 is arc-shaped, the angle adjusting pin 5-3 is connected to the first chute, and when the seat is in an adjusted state, the angle adjusting pin 5-3 is locked in an adjusting hole 3-3 on the bending beam 3, so that the bending beam 3 is fixed to the seat body fixing seat 4.
In the embodiment of the invention, the angle adjusting handle 5 is also provided with a second chute 5-4, a third supporting rod 5-5 is arranged in the second chute 5-4, and two ends of the third supporting rod 5-5 are connected with the chair body fixing seat 4. The third support bar 5-5 is used to support and position the angle adjustment knob 5.
In the embodiment of the invention, the end of the angle adjusting handle 5 extending out of the chair body fixing seat 4 is provided with the groove 5-6, so that an operator can conveniently extend in fingers to pull the angle adjusting handle 5.
The lower part of the seat body fixing seat 4 in the embodiment of the invention is also provided with two fixing shafts 4-4 which are oppositely arranged and are used for fixing the seat body fixing seat 4 on the child safety seat base fixing frame 1.
In the embodiment of the invention, the bending beam 3 is of a hollow structure, and three cross beams 3-4 are arranged on the bending beam and are used for installing and fixing other components of the child safety seat such as a headrest, a backrest, a cushion and the like.
The three cross beams 3-4 in the embodiment of the invention are fixedly connected with the bending beam 3 through screws 3-5.
The angle adjusting process in the angle adjusting device of the child safety seat in the embodiment of the invention is as follows: firstly, pulling the angle adjusting handle 5 to enable the angle adjusting pin 5-3 to move out of the adjusting hole 3-3, and pulling the chair body forwards or backwards; then the angle adjusting handle 5 is loosened, the angle adjusting handle 5 can reset under the tension of the tension spring 5-1, and two conditions exist at the moment, wherein the first condition is that the angle adjusting handle 5 resets to drive the angle adjusting pin 5-3 to be just inserted into the adjusting hole 3-3, so that the bending beam 3 is fixed on the chair body fixing seat 4; the first condition is that the angle adjusting handle 5 performs reset action to drive the angle adjusting pin 5-3 to be unable to be inserted into the adjusting hole 3-3, at this time, the chair body is slightly moved back and forth slightly, so that the angle adjusting pin 5-3 is inserted into the adjusting hole 3-3, and angle adjustment of the chair body is completed.
The headrest stay plate 6-1 of the headrest portion 6 in the embodiment of the invention is provided with a shoulder strap adjusting, fixing and quick-release structure 9, which includes a shoulder strap shaft 9-1, a first shoulder strap shaft adjusting member 9-2, a second shoulder strap shaft adjusting member 9-3, a fastening strip 9-4 and a spring steel sheet 9-5. The first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3 are all L-shaped plate pieces. A first protruding part 9-7 is arranged on one side of the upper part of the first shoulder strap shaft adjusting piece 9-2, a connecting lug 9-8 is arranged on the other side of the upper part, and the connecting lug 9-8 protrudes upwards relative to the upper end surface of the first shoulder strap shaft adjusting piece 9-2, and the protruding part is semicircular; the middle part is provided with a first through hole 9-9 which is rectangular; the lower part is provided with a first clamping groove 9-10. One side of the upper part of the second shoulder strap shaft adjusting piece 9-3 is provided with a second protruding part 9-11, and the other side of the upper part is provided with a connecting block 9-12; the middle part is provided with a rectangular second through hole 9-13; the lower part is provided with a second clamping groove 9-14. The connecting lugs 9-8 and the connecting blocks 9-12 are connected together by rivets 9-6 so that the first shoulder strap axis adjusting member 9-2 and the second shoulder strap axis adjusting member 9-3 are relatively connected together, and at this time, the first through hole 9-9 and the second through hole 9-13 are opposite, and the shoulder strap axis 9-1 is placed on the two shoulder strap axis adjusting members through the first through hole 9-9 and the second through hole 9-13. The spring steel sheet 9-5 is curvedly abutted between the shoulder strap shaft 9-1 and the first and second shoulder strap shaft adjusting members 9-2 and 9-3. One end of the fastening strip 9-4 is provided with a through hole 9-15, the other end is provided with an upward tilted spanner 9-16, and the middle part of the lower end surface of the fastening strip 9-4 is provided with a semicircular groove 9-17.
The working process of the shoulder strap adjusting, fixing and quick-dismantling structure 9 in the embodiment of the invention is as follows: (1) fixing process: the through holes 9-15 on the fastening strips 9-4 clamp the first protruding parts on the first shoulder strap shaft adjusting piece 9-2, the spanners 9-16 on the fastening strips 9-4 are attached to the second protruding parts 9-11 on the second shoulder strap shaft adjusting piece 9-3, the fastening strips 9-4 press the first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3, the whole shoulder strap adjusting fixing and quick-dismantling structure is fixed on the headrest through the first clamping grooves 9-10 and the second clamping grooves 9-14, at the moment, the spring steel sheets 9-5 are in a bending state, pressing force is provided for the shoulder strap shafts 9-1, and the shoulder strap shafts are tightly attached to the fixing grooves on the headrest. In addition, when the fastening strip 9-4 is in a fastening state, the semicircular groove 9-17 on the lower end surface of the fastening strip is matched with the semicircular protrusion on the connecting lug 9-8, so that a certain limiting effect is achieved on the fastening strip 9-4; and (2) a quick-dismantling process: the spanner 9-16 is lifted to enable the fastening strip 9-4 not to press the first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3 any more, at the moment, the first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3 are rapidly opened under the elastic force of the spring steel sheet 9-5, and therefore the whole shoulder strap adjusting, fixing and quick-dismantling structure is conveniently and quickly dismantled from the headrest.
The rear part of the chair body part 7 in the embodiment of the invention is provided with a back cushion structure 10. The back pad structure 10 consists of a left side surface 10-2, a right side surface 10-3 and an upper side surface 10-1, wherein the upper side surface 10-1 is in a circular arc shape and covers the left side surface 10-2 and the right side surface 10-3. In addition, a through hole 10-4 is formed in the middle of the upper side 10-1, a second fixing device 10-5 is arranged in the through hole 10-4, and one end of the second fixing device 10-5 is connected with the chair body part 7. The contact surface of the upper side 10-1 with the rear part of the seat part 7 is provided with first fixing means 10-6.
In the embodiment of the invention, the chair body part 7 is slidably arranged on the chair body fixing seat 4 of the child safety seat, and when the chair body is adjusted in angle, the chair body part 7 slides along the circular arc path for adjusting the angle. In the embodiment of the invention, the center of the arc path when the chair body part 7 slides along the arc path for angle adjustment and the center of the arc upper side surface 10-1 of the back cushion structure 10 are the same center point B, so that the arc upper side surface 10-1 of the back cushion structure 10 rotates around the point B at the same time when the arc path of the chair body part 7 slides for angle adjustment is ensured.
In the embodiment of the invention, the back cushion structure 10 is arranged on the side surface of the rear part of the seat body part 7 of the child safety seat, the back cushion structure 10 enables the automobile seat to keep a certain distance from the seat body part 7 of the child safety seat, and compared with the direct contact area between the seat body part 7 of the child safety seat and the automobile seat, the contact area between the back cushion structure 10 and the automobile seat is greatly reduced, so that the angle adjustment of the seat body part 7 of the child safety seat is facilitated.
In the embodiment of the invention, the two sides of the base fixing frame 1 are provided with the ISOFIX interface unlocking structures 11 of the child safety seat with the false triggering prevention function. The child safety seat ISOFIX interface unlocking structure 11 with the false triggering prevention function comprises a standard ISOFIX short interface 11-1, an interface extension rod 11-2, an unlocking handle 11-4, an unlocking toggle button 11-3, an interface connecting block 11-7 and a pressure spring 11-8. One end of the standard ISOFIX short connector 11-1 and one end of the connector extension rod 11-2 are fixedly connected by two rivets 11-5. The interface extension rod 11-2 is a tubular structure with a hollow interior and a rectangular cross section, and a slotted hole 11-9 is arranged on one side surface of the interface extension rod. The unlocking handle 11-4 is placed in the inner cavity of the interface extension rod 11-2 and is connected with the standard ISOFIX short interface 11-1, and the handle part of the unlocking handle 11-4 is positioned in the slotted hole 11-9, and the specific connection relationship can be referred to the prior art. The interface connection block 11-7 is fixed at the end part of the standard ISOFIX short interface 11-1 through two cross-slot pan head self-tapping screws 11-6. The unlocking knob 11-3 is connected with the connecting block 11-7 through a pressure spring 11-8. In the locked state of the ISOFIX interface of the child safety seat, the unlocking dial knob 11-3 covers the bottom of the slotted hole 11-9, and one end of the unlocking handle 11-2 with the handle is positioned behind the unlocking dial knob 11-3.
When the child safety seat is fixed on the automobile seat in specific application, the unlocking pulling button 11-3 moves away from the direction of the standard ISOFIX short interface 11-1 under the action of the elastic force of the pressure spring 11-8, the bottom of the slotted hole 11-9 is covered, and if the handle is pulled to separate the child safety seat from the automobile seat, the unlocking pulling button 11-3 needs to be pulled towards the direction close to the standard ISOFIX short interface 11-1, the unlocking pulling button 11-3 does not cover the bottom of the slotted hole 11-9 any more, the unlocking handle 11-4 is exposed, and an operator can extend into the finger to pull the handle, so that the effect of preventing misoperation is achieved.
In the embodiment of the invention, one end of the upper pull belt 12 is fixed on the upper pull belt fixing rod 4-5 in the seat body fixing seat 4, and the other end of the upper pull belt passes through the channel structure 10-7 which is arranged at the top of the upper side surface of the back cushion structure 10 and can enable the upper pull belt to pass through from top to bottom, thereby being fixed on a fixing anchor point above the automobile seat. Compared with the prior art that one end of the pull-up belt is fixed on the chair back of the child seat, the pull-up belt fixing structure designed in the embodiment of the invention does not need to loosen the pull-up belt when the chair back of the child safety seat is adjusted in angle, and can improve the usability of a user.
The application method of the child safety seat with the steel skeleton structure comprises a locking and unlocking method of a steel skeleton structure part and a base fixing frame, a seat body angle adjusting method, a shoulder strap adjusting, fixing and quick-dismantling structure, an ISOFIX interface unlocking structure of the child safety seat with an anti-false triggering function, and an upward pulling strap fixing method.
(1) Locking and unlocking method for steel skeleton structure part and base fixing frame
The locking method comprises the following specific steps:
1) Placing the chair body fixing seat 4 of the steel skeleton structure part 2 into a groove in the base upper cover 1-7 of the base fixing frame 1;
2) The two touch keys 1-13 in the base upper cover 1-7 are pressed downwards by the chair body fixing seat 2-2, so that the limit rod 1-8 is pushed downwards, and the limit rod 1-8 is separated from the limit grooves 1-11 at the lower parts of the first lock frame 1-3 and the second lock frame 1-4;
3) The first lock frame 1-3 and the second lock frame 1-4 move towards the direction of the spanner 1-6 under the action of the tension force of the tension spring II 1-12, at the moment, the lock hook 1-10 on the first lock frame 1-3 and the second lock frame 1-4 clamps the fixed shaft 2-3 on the chair body fixing seat 2-2, and the spanner 1-6 is pressed down to finish locking;
the unlocking method comprises the following specific steps:
1) The wrench 1-6 is pulled open, and the wrench 1-6 drives the first lock frame 1-3 and the second lock frame 1-4 to move away from the wrench 1-6 through the lock frame connecting rod 1-5;
2) The lock hooks 1-10 on the first lock frame 1-3 and the second lock frame 1-4 are separated from the fixed shaft 2-3 on the chair body fixing seat 2-2;
3) And the steel skeleton structure part 2 is dismounted, at the moment, the chair body fixing seat 2-2 does not act on pressure on the two touch keys 1-13 in the base upper cover 1-7 any more, namely the touch keys 1-13 do not push the limiting rod 1-8 downwards, the limiting rod 1-8 moves upwards to the limiting grooves 1-11 at the lower parts of the first lock frame 1-3 and the second lock frame 1-4 under the tensile force of the tension spring 1-19, and thus unlocking is completed.
(2) Chair body angle adjusting method
1) Pulling the angle adjusting handle 5 to enable the angle adjusting pin 5-3 to move out of the adjusting hole 3-3;
2) Pulling the chair body forwards or backwards;
3) The angle adjusting handle 5 is loosened, the angle adjusting handle 5 performs reset action under the tension of the tension spring 5-1, and two conditions exist at the moment, wherein the first condition is that the angle adjusting handle 5 performs reset action to drive the angle adjusting pin 5-3 to be just inserted into the adjusting hole 3-3, so that the bending beam 3 is fixed on the chair body fixing seat 4; in the second case, the angle adjusting handle 5 performs a reset action to drive the angle adjusting pin 5-3 to be unable to be inserted into the adjusting hole 3-3, and at the moment, the chair body is slightly moved back and forth slightly, so that the angle adjusting pin 5-3 is inserted into the adjusting hole 3-3, and angle adjustment of the chair body is completed.
(3) Use method of shoulder strap adjusting, fixing and quick-dismantling structure
1) The fixing method comprises the following steps: the first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3 are buckled into corresponding clamping grooves on the headrest pull plate 6-1, the buckling strip 9-4 is pressed down, at the moment, the spring steel sheet 9-5 is in a bending state, and a pressing force is provided for the shoulder strap shaft 9-1, so that the shoulder strap shaft is tightly attached to the corresponding clamping grooves on the headrest pull plate 6-1;
2) The quick-dismantling method comprises the following steps: the spanner 9-16 is lifted to enable the fastening strip 9-4 not to press the first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3 any more, at the moment, the first shoulder strap shaft adjusting piece 9-2 and the second shoulder strap shaft adjusting piece 9-3 are rapidly opened under the elastic force of the spring steel sheet 9-5, and the whole shoulder strap adjusting, fixing and quick-dismantling structure 9 is detached from the headrest pulling plate 6-1.
(4) Application method of ISOFIX interface unlocking structure of child safety seat with false triggering prevention function
1) The standard ISOFIX short interfaces 11-1 arranged on two sides of the base fixing frame 1 are buckled into interfaces at the rear part of the automobile seat, namely the child safety seat is fixed on the automobile seat, at the moment, the unlocking pulling button 11-3 moves in a direction away from the standard ISOFIX short interfaces 11-1 under the action of the elastic force of the pressure spring 11-8, and the bottoms of the slotted holes 11-9 on the ISOFIX interface unlocking structure are covered;
2) The unlocking knob 11-3 is shifted to a direction approaching to the standard ISOFIX short interface 11-1, the unlocking knob 11-3 does not cover the bottom of the slotted hole 11-9 any more, the unlocking handle 11-4 is exposed, and an operator stretches into a finger to pull the unlocking handle 11-4, so that the standard ISOFIX short interface 11-1 is separated from the interface at the rear part of the automobile seat.
(5) Fixing method for pull-up belt
1) A pull-up strap fixing rod 4-5 for fixing one end of the pull-up strap 12 in the seat body fixing seat 4;
2) The other end of the pull-up belt 12 is passed upwards through a channel structure 10-7 which is arranged at the top of the upper side surface 10-1 of the back cushion structure 10 and can be passed through by the pull-up belt from top to bottom, and is fixed at a fixed anchor point above the automobile seat.
In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present invention. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art to which the invention pertains may make various modifications or additions or substitutions to the described embodiments or uses of such embodiments and all such modifications and additions may be made without departing from the spirit and scope of the invention as defined therein.
Claims (8)
1. A child safety seat with a steel skeleton structure comprises a headrest part and a seat body part, wherein the headrest part is positioned above the seat part through a headrest pulling plate capable of sliding up and down; the method is characterized in that: the device also comprises a steel skeleton structure part and a base fixing frame; the headrest part and the chair body part are all arranged on the steel framework structure part; the steel skeleton structure part is arranged on the base fixing frame;
the steel skeleton structure part comprises a bending beam and a chair body fixing seat; two fixed shafts are oppositely arranged at the lower part of the chair body fixing seat; the seat body fixing seat is provided with a through hole, a first supporting rod and a second supporting rod are arranged at two ports close to the through hole, and the first supporting rod and the second supporting rod are horizontally arranged and are perpendicular to the extending direction of the through hole; the first support rod and the second support rod divide the through hole into an upper space and a lower space; the bending beam penetrates through the through hole and is positioned on the first supporting rod and the second supporting rod, namely the upper space of the through hole, a first limit nail, a second limit nail and a plurality of adjusting holes are arranged on the side surface of the bending beam, which is in contact with the first supporting rod and the second supporting rod, and the adjusting holes are positioned between the first limit nail and the second limit nail; an angle adjusting handle is arranged below the lower space of the through hole, namely the first support rod and the second support rod; one end of the angle adjusting handle is connected with a tension spring, the tension spring is fixedly connected with the chair body fixing seat, and the other end of the angle adjusting handle extends out of the chair body fixing seat; the angle adjusting handle is provided with a first chute which is arc-shaped, an angle adjusting pin is connected to the first chute, and the angle adjusting pin is locked in an adjusting hole on the bending beam when the seat is in an adjusted state;
The base fixing frame comprises a first cross beam, a second cross beam, a first lock frame, a second lock frame, a lock frame connecting rod, a wrench, a base upper cover and a limiting rod; the first cross beam and the second cross beam are oppositely arranged, both ends of the lower part of the first cross beam and the second cross beam are respectively provided with a groove-shaped support, and two side surfaces of the support are provided with horizontal guide sliding grooves; the two ends of the first lock frame are placed in the supports on the same side of the two oppositely arranged cross beams, and the two ends of the second lock frame are placed in the supports on the other same side of the two oppositely arranged cross beams; two groups of lock hooks are arranged at the upper parts of the first lock frame and the second lock frame, and a limit groove is formed at the lower part of the first lock frame and the second lock frame; the lock frame connecting rod is arranged on a horizontal guide chute on the side surface of the support at two ends of the lower part of the first cross beam, and two ends of the lock frame connecting rod are respectively connected with the first lock frame and the second lock frame; the middle part of the lock frame connecting rod is connected with a spanner; the base upper cover is arranged on the first beam and the second beam, is provided with a groove, and is provided with two touch key holes and two spring holes; a touch key is arranged in the touch key hole, and a semicircular groove is arranged at the lower part of the touch key; a first tension spring is arranged in the spring hole along the vertical direction, the upper end of the first tension spring is fixedly connected with the upper cover of the base, and the lower end of the first tension spring is connected with the limiting rod; the limiting rod is placed at the lower parts of the first lock frame and the second lock frame along the direction parallel to the first cross beam, and when the lock frames are in an unlocking state, two ends of the limiting rod are clamped into limiting grooves at the lower parts of the first lock frame and the second lock frame, and the middle part of the limiting rod is clamped into a semicircular groove at the lower part of the touch key;
The angle adjusting handle is also provided with a second chute, a third supporting rod is arranged in the second chute, and two ends of the third supporting rod are connected with the chair body fixing seat; one end of the angle adjusting handle extending out of the chair body fixing seat is provided with a groove;
the matched and connected parts of the first lock frame and the second lock frame and the supports at the two ends of the lower part of the first cross beam are respectively provided with a tension spring II; one end of the tension spring II is connected with the support, and the other end of the tension spring II is connected with the lock frame; the first lock frame and the second lock frame are connected with the supports at the two ends of the lower part of the second cross beam through pin shafts, and cotter pins are arranged at one ends of the pin shafts.
2. A child safety seat having a steel skeleton structure according to claim 1, wherein: the headrest pull plate of the headrest part is provided with a shoulder strap adjusting, fixing and quick-dismantling structure; comprises a first shoulder strap shaft adjusting piece, a second shoulder strap shaft adjusting piece, a shoulder strap shaft, a fastening strip and a spring steel sheet; the first shoulder strap shaft adjusting piece is connected with the second shoulder strap shaft adjusting piece, and is arranged oppositely, the middle parts of the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are respectively provided with a through hole, and the bottoms of the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are respectively provided with a clamping groove; the shoulder strap shaft passes through the through holes on the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece and is placed on the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece; the spring steel sheet is in bending butt joint between the shoulder strap shaft and the first shoulder strap shaft adjusting piece and between the spring steel sheet and the second shoulder strap shaft adjusting piece; the fastening strip is arranged at the upper part of the joint of the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece, one end of the fastening strip is connected with the first shoulder strap shaft adjusting piece, and the other end of the fastening strip is connected with the second shoulder strap shaft adjusting piece in a matched mode.
3. A child safety seat having a steel skeleton structure according to claim 1, wherein: the back part of the chair body part is provided with a back cushion structure; the back cushion structure consists of a left side surface, a right side surface and an upper side surface; the upper side body is arc-shaped and covers the left side surface and the right side surface; a first fixing device is arranged at the contact surface of the upper side surface and the chair back part; the middle part of the upper side surface is provided with a through hole, and a second fixing device is arranged in the through hole.
4. A child safety seat having a steel skeleton structure according to claim 1, wherein: the child safety seat ISOFIX interface unlocking structure with the false triggering prevention function is arranged on two sides of the base fixing frame and comprises a standard ISOFIX short interface, an interface extension rod, an unlocking handle, an unlocking pulling button, an interface connecting block and a pressure spring; the interface extension rod is internally provided with a cavity, and a slotted hole is formed in the cavity; the standard ISOFIX short interface is connected with one end of the interface extension rod; the unlocking handle is arranged in a cavity of the interface extension rod and is connected with a standard ISOFIX short joint port, and a handle part of the unlocking handle is positioned in the slot hole; the interface connecting block is arranged at one end inside the interface extension rod; the unlocking pulling button is slidably arranged in a cavity of the interface extension rod, is connected with the interface connecting block through a pressure spring, and closes and opens the slotted hole through sliding motion.
5. A child safety seat having a steel skeleton structure according to claim 1, wherein: three cross beams are arranged on the bending beam of the steel skeleton structure part.
6. A child safety seat having a steel skeleton structure according to claim 1, wherein: the upper end of the tension spring I is fixed in the spring hole through a cylindrical pin, and a spring hole cover is arranged on the upper portion of the spring hole.
7. A child safety seat having a steel skeleton structure according to claim 3, wherein: the through hole of the chair body fixing seat is also provided with an upper pull belt fixing rod; the top of the upper side surface of the back cushion structure is provided with a channel structure which can enable the upward pull belt to pass through from top to bottom.
8. A method of using a child safety seat having a steel skeleton structure according to any one of claims 1-7, wherein: the locking and unlocking method comprises a locking and unlocking method of a steel skeleton structure part and a base fixing frame, a chair body angle adjusting method, a using method of a shoulder strap adjusting, fixing and quick-dismantling structure, a using method of an ISOFIX interface unlocking structure of the child safety seat with an anti-false triggering function and a fixing method of an upper pull strap;
(1) The locking and unlocking method of the steel skeleton structure part and the base fixing frame comprises the following steps:
the locking method comprises the following specific steps:
1) Placing a chair body fixing seat of the steel skeleton structure part into a groove in a base upper cover of a base fixing frame;
2) The two touch keys in the upper cover of the base are pressed downwards by the fixed seat of the chair body, so that the limiting rod is pushed downwards, and the limiting rod is separated from the limiting grooves at the lower parts of the first lock frame and the second lock frame;
3) The first lock frame and the second lock frame move towards the direction of the wrench under the action of the tension force of the tension spring II, and at the moment, the lock hooks on the first lock frame and the second lock frame clamp the fixed shaft on the chair body fixing seat, and the wrench is pressed down to finish locking;
the unlocking method comprises the following specific steps:
1) Pulling open the wrench, and driving the first lock frame and the second lock frame to move away from the wrench by the wrench through the lock frame connecting rod;
2) The lock hooks on the first lock frame and the second lock frame are separated from the fixed shaft on the chair body fixing seat;
3) The steel skeleton structure part is disassembled, at the moment, the fixed seat of the chair body does not act on pressure on two touch keys in the upper cover of the base any more, namely the touch keys do not push the limiting rod downwards, and the limiting rod moves upwards into the limiting grooves at the lower parts of the first lock frame and the second lock frame under the action of the tension spring I, so that unlocking is completed;
(2) The chair body angle adjusting method comprises the following steps:
1) Pulling the angle adjusting handle to enable the angle adjusting pin to move out of the adjusting hole;
2) Pulling forward or pushing backward the chair body;
3) The angle adjusting handle is loosened, the angle adjusting handle can reset under the tension of the tension spring, and two conditions exist at the moment, wherein the first condition is that the angle adjusting handle resets to drive the angle adjusting pin to be just inserted into the adjusting hole, so that the framework bending beam is fixed on the chair body fixing seat; the second condition is that the angle adjusting handle is reset to drive the angle adjusting pin to be unable to be inserted into the adjusting hole, at the moment, the chair body is slightly moved back and forth, so that the angle adjusting pin is inserted into the adjusting hole, and the angle adjustment of the chair body is completed;
(3) The using method of the shoulder strap adjusting, fixing and quick-dismantling structure comprises the following steps:
1) The fixing method comprises the following steps: the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are buckled into corresponding clamping grooves on the headrest pull plate, and the buckling strips are pressed down, so that the spring steel sheet is in a bending state, and a pressing force is provided for the shoulder strap shaft, so that the shoulder strap shaft is tightly attached to the corresponding clamping grooves on the headrest pull plate;
2) The quick-dismantling method comprises the following steps: lifting the spanner to ensure that the fastening strip does not press the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece any more, and at the moment, the first shoulder strap shaft adjusting piece and the second shoulder strap shaft adjusting piece are rapidly opened under the elastic action of the spring steel sheet to detach the whole shoulder strap adjusting, fixing and quick-dismantling structure from the headrest pulling plate;
(4) The application method of the ISOFIX interface unlocking structure of the child safety seat with the false triggering prevention function comprises the following steps:
1) The standard ISOFIX short interfaces arranged on two sides of the base fixing frame are buckled into interfaces at the rear part of the automobile seat, namely the child safety seat is fixed on the automobile seat, at the moment, the unlocking pulling button moves in a direction away from the standard ISOFIX short interfaces under the action of the elastic force of the pressure spring, and the bottoms of slotted holes on the ISOFIX interface unlocking structure are covered;
2) The unlocking pulling button is pulled in a direction close to the standard ISOFIX short interface, the unlocking pulling button does not cover the bottom of the slotted hole any more, the unlocking handle is exposed, an operator stretches into a finger to pull the unlocking handle, and the standard ISOFIX short interface is separated from an interface at the rear part of the automobile seat;
(5) The fixing method of the pull-up belt comprises the following steps:
1) A bolt fixing rod for fixing one end of the upper pull belt in the chair body fixing seat;
2) The other end of the upward pulling belt passes through a channel structure which is arranged at the top of the upper side surface of the back cushion structure and can enable the bolt belt to pass through from top to bottom, and the upward pulling belt is fixed at a fixed anchor point above the automobile seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810795324.7A CN108749664B (en) | 2018-07-19 | 2018-07-19 | Child safety seat with steel skeleton structure and application method thereof |
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| CN201810795324.7A CN108749664B (en) | 2018-07-19 | 2018-07-19 | Child safety seat with steel skeleton structure and application method thereof |
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| CN108749664B true CN108749664B (en) | 2023-12-22 |
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| CN118578951A (en) * | 2018-12-13 | 2024-09-03 | 明门瑞士股份有限公司 | Infant vehicle carrier and its vehicle body preventing misuse of front and back |
| CN109649230B (en) * | 2019-02-27 | 2024-06-14 | 东莞市铭心科技服务有限公司 | Seat base |
| CN109733256B (en) * | 2019-02-27 | 2024-07-26 | 联扬塑胶(深圳)有限公司 | Locking connection device of child car safety seat |
| CN110126688A (en) * | 2019-05-24 | 2019-08-16 | 宁波姐妹宝贝儿童用品科技有限公司 | A kind of Multifunctional safety chair for children |
| CN110126689A (en) * | 2019-05-24 | 2019-08-16 | 宁波姐妹宝贝儿童用品科技有限公司 | A kind of ISOFIX interface fixing apparatus |
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| WO2010088248A1 (en) * | 2009-01-27 | 2010-08-05 | Graco Children's Products Inc. | Child safety seat with height adjust able harness and headrest |
| KR101586958B1 (en) * | 2014-12-05 | 2016-01-20 | 이지영 | Separable reclining car seat |
| CN105857131A (en) * | 2016-06-18 | 2016-08-17 | 宁波市博林日用品制造有限公司 | Automobile safety chair for child |
| CN107571773A (en) * | 2017-09-07 | 2018-01-12 | 上海路途乐科技有限公司 | A kind of Multifunctional safety chair for children |
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| CN108749664A (en) | 2018-11-06 |
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