CN111483365A

CN111483365A - Automobile seat for children

Info

Publication number: CN111483365A
Application number: CN202010341637.2A
Authority: CN
Inventors: 徐陈
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-08-04

Abstract

The invention discloses a children automobile seat, which comprises a seat body and an ISOFIX connecting assembly, wherein the ISOFIX connecting assembly comprises an outer tube and an inner tube, the ISOFIX connecting assembly has an initial state and a connection state, the ISOFIX connecting assembly also comprises a first locking mechanism for locking the ISOFIX connecting assembly in the initial state and the connection state, and an unlocking mechanism for unlocking the first locking mechanism, the unlocking mechanism comprises a release button arranged in a sliding manner, a driving piece arranged in the inner tube in a sliding manner, and a flexible connecting piece, two ends of the flexible connecting piece are respectively connected with the release button and the driving piece, the first locking mechanism comprises a first locking piece arranged on the driving piece in a rotating manner, when the release button is pressed, the ISOFIX connecting assembly further comprises a first elastic piece which enables the inner pipe to extend out of the outer pipe to the maximum extent after the first locking mechanism of the ISOFIX connecting assembly is unlocked in an initial state. This children's car seat simple to operate facilitates the use.

Description

Automobile seat for children

Technical Field

The invention relates to the technical field of children products, in particular to a child automobile seat.

Background

The child car seat is mainly used for children to take a car so as to protect the personal safety of the children. Currently, children's car seats have been increasingly used, and various children's car seats are marketed. In order to make the connection between the child car seat and the car seat simpler and more secure, more and more child car seats choose to use ISOFIX (international organization for standardization) fixing means. When installing children's car seat on car seat, the inner tube of ISOFIX coupling assembling of setting on children's car seat generally need stretch out the outer tube certain distance, among the prior art, needs manual operation, inconvenient ISOFIX coupling assembling's use when ISOFIX coupling assembling's inner tube stretches out in the outer tube.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an improved child car seat.

In order to achieve the purpose, the invention adopts the technical scheme that:

a children automobile seat comprises a seat body and an ISOFIX connecting assembly arranged on the seat body, wherein the ISOFIX connecting assembly comprises an outer tube and an inner tube which is arranged in the outer tube in a sliding manner along the length extension direction of the outer tube, the ISOFIX connecting assembly has an initial state that the inner tube is completely retracted into the outer tube and a connection state that the inner tube is maximally extended out of the outer tube, the ISOFIX connecting assembly further comprises a first locking mechanism used for locking the ISOFIX connecting assembly in the initial state and the connection state respectively, an unlocking mechanism used for unlocking the first locking mechanism, the unlocking mechanism comprises a release button which is arranged on the seat body in a sliding manner, a driving piece which is arranged in the inner tube in a sliding manner along the length extension direction of the inner tube, and a flexible connecting piece of which two end parts are respectively connected with the release button and the driving piece, the first locking mechanism comprises a first locking piece which can be rotatably arranged on the driving piece, when the release button is pressed to unlock the first locking mechanism, the flexible connecting piece pulls the driving piece to slide relative to the inner pipe to drive the first locking piece to rotate relative to the driving piece to unlock the first locking mechanism, and the ISOFIX connecting assembly further comprises a first elastic piece which is used for driving the inner pipe to stretch out of the outer pipe to the maximum length after the ISOFIX connecting assembly is unlocked in an initial state.

Preferably, a first lock tongue and a second lock tongue are arranged on the first locking member, a first lock groove and a second lock groove are respectively arranged on the outer tube, when the ISOFIX connecting assembly is locked in an initial state, the first lock tongue and the second lock tongue are both located in the first lock groove, a first contact surface arranged on the first lock tongue abuts against the first lock groove, when the ISOFIX connecting assembly is locked in a connecting state, the first lock tongue and the second lock tongue are both located in the second lock groove, a second contact surface arranged on the second lock tongue abuts against the second lock groove, and when the first lock mechanism is in an unlocking state, the first lock tongue and the second lock tongue are both separated from the first lock groove and the second lock groove.

Preferably, a fixing column is fixedly arranged on the inner tube, a first matching portion is arranged on the first locking member, and an outer cylindrical surface of the fixing column abuts against the first matching portion.

Preferably, the ISOFIX coupling assembling still includes and is used for preventing the inner tube is to stretching out the gliding second latch mechanism of direction of outer tube, second latch mechanism is including setting up with rotating second locking piece in the inner tube, setting up are in third locked groove on the outer tube, the second locking piece has the third spring bolt, the third locked groove with the third spring bolt cooperatees, works as when second latch mechanism is in the locking state, the third spring bolt is inserted and is established in the third locked groove, works as when second latch mechanism is in the unlocking state, the third spring bolt is followed deviate from in the third locked groove, works as when second latch mechanism is in the locking state, first latch mechanism is in the unlocking state.

Further, when ISOFIX coupling assembling locks at initial condition and connected state, second lock mechanism all is in the unblock state, the second locking piece is located in the inner tube just the third spring bolt is supported and is established on the inner wall of outer tube.

Further, be provided with on the driving piece and press the splenium, be provided with the barrier part on the second locking piece, work as ISOFIX coupling assembling presses down under initial condition or connected state release button orders about during the unblock of first locking mechanism, the driving piece slides forward, press splenium pressure to establish on the barrier part, make second latch mechanism is in the unblock state.

Furthermore, a slot is formed in the driving piece, a blocking part is arranged on the second locking piece, and when the second lock mechanism is in a locking state and presses the release button to enable the driving piece to slide forwards, the blocking part is located in the slot and can slide relative to the slot.

Preferably, the ISOFIX connecting assembly further comprises a third locking mechanism capable of being connected with and locked by a car seat, the third locking mechanism comprises a third locking piece which can be rotatably arranged on the inner tube, the unlocking mechanism further comprises a tension spring with two ends respectively connected with the driving piece and the third locking piece, a second matching part is arranged on the third locking piece, a third matching part is arranged on the driving piece, when the third locking mechanism is in a locking state, the third matching part is clamped into the second matching part, when the third locking mechanism is in an unlocking state, the third matching part is far away from the second matching part, when the ISOFIX connecting assembly is in a connecting state, the third locking piece can be connected with the car seat, when the third locking mechanism is in a locking state, the first locking mechanism is in an unlocking state, when the third lock mechanism is in an unlocked state, the first lock mechanism is in a locked state.

Furthermore, a second lock tongue is arranged on the first locking piece, a second lock groove is formed in the outer tube, when the ISOFIX connecting assembly is locked in a connecting state, the second lock tongue is located in the second lock groove, a third contact surface is arranged at the rear portion of the second lock tongue, when the third locking piece is connected with the automobile seat, the driving piece and the first locking piece are pulled to slide backwards through the tension spring, and the third contact surface is matched with the second lock groove to enable the first locking piece to rotate relative to the driving piece, so that the first locking mechanism is unlocked.

Preferably, the outer tube is respectively fixed and arranged at the left side and the right side of the seat body, the inner tube is arranged in the outer tube at each side in a sliding manner, and the ISOFIX connecting assembly further comprises a synchronous connecting rod, two end parts of which are respectively fixedly connected to the inner tubes at the two sides and used for driving the inner tubes at the two sides to synchronously slide relative to the outer tube.

Furthermore, the outer pipe on each side is provided with a sliding groove extending along the front-back direction, and the synchronous connecting rod penetrates through the sliding groove and can be arranged in a sliding manner along the length extending direction of the sliding groove.

Preferably, the outer tubes are respectively fixedly disposed at left and right sides of the seat body, the inner tube is slidably disposed in the outer tube at each side, the driving member and the first locking member are respectively disposed in the inner tube at each side, the release button is slidably disposed at a front portion of the seat body, and the driving members at both sides are connected with the release button through the flexible connecting member.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the child car seat is simple in structure, when the child car seat is not used, the inner pipe of the ISOFIX component can be retracted into the outer pipe, so that the child car seat is convenient to store, when the child car seat needs to be used, the first locking mechanism can be unlocked through the driving piece only by pressing the release button, after the first locking mechanism is unlocked, the inner pipe can be automatically popped out under the action of the elastic force of the first elastic piece to enable the ISOFIX connecting component to be in a connecting state, and in the connecting state, the ISOFIX connecting component can be connected with a car seat, so that the child car seat is fixed on the car seat. This ISOFIX coupling assembling inner tube need not artificial operation at the pop-up in-process, makes things convenient for ISOFIX coupling assembling's use.

Drawings

FIG. 1 is an exploded view (single sided configuration) of an ISOFIX connection assembly of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is an external structural schematic diagram of the ISOFIX connecting assembly of the present invention locked in an initial state (release button released, first lock mechanism locked, second lock mechanism unlocked);

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural diagram of the ISOFIX connecting assembly locked inside the inner tube in an initial state (release button released, first lock mechanism locked, second lock mechanism unlocked);

fig. 6 is an external structural schematic diagram of the ISOFIX connecting assembly of the present invention in a connected state (release button pressed, first lock mechanism unlocked, second lock mechanism unlocked);

fig. 7 is a schematic structural diagram of the internal part of the internal pipe of the ISOFIX connecting assembly in a connected state (a release button is pressed, the first lock mechanism is unlocked, and the second lock mechanism is unlocked);

fig. 8 is an external structural schematic diagram of the ISOFIX connection assembly of the present invention locked in a connection state (release button released, first lock mechanism locked, second lock mechanism unlocked);

FIG. 9 is an enlarged view of a portion of FIG. 8 at A;

fig. 10 is a schematic structural view of the ISOFIX connecting assembly of the present invention locked inside the inner tube in an initial connecting state (release button released, first lock mechanism locked, second lock mechanism unlocked);

fig. 11 is a schematic diagram of an external structure of the ISOFIX connecting assembly of the present invention after being connected to a car seat (the car seat is not shown, the release button is released, the third lock mechanism is locked, and the first lock mechanism and the second lock mechanism are unlocked);

fig. 12 is a schematic structural view of the inside of the inner tube after the ISOFIX connecting assembly of the present invention is connected to the car seat (the car seat is not shown, the release button is released, the third lock mechanism is locked, and the first lock mechanism and the second lock mechanism are unlocked);

fig. 13 is an external structural schematic diagram of the ISOFIX connecting assembly of the present invention after the connection with the car seat is disconnected in the maximum gear position use state (the car seat is not shown, and the release button, the third lock mechanism, the first lock mechanism and the second lock mechanism are all unlocked by pressing);

fig. 14 is a schematic structural view of the inside of the inner tube after the ISOFIX connecting assembly is disconnected from the car seat in the maximum gear position use state (the car seat is not shown, and the release button, the third lock mechanism, the first lock mechanism and the second lock mechanism are all unlocked when being pressed);

fig. 15 is an external structural view of the ISOFIX connecting assembly of the present invention in a middle shift position use state (not shown in the car seat, release button released, third lock mechanism locked, first lock mechanism unlocked, second lock mechanism locked);

fig. 16 is a schematic structural view of the interior of the inner tube of the ISOFIX connecting assembly of the present invention in a middle shift position use state (the car seat is not shown, the release button is released, the third lock mechanism is locked, the first lock mechanism is unlocked, and the second lock mechanism is locked);

fig. 17 is an external structural schematic diagram of the ISOFIX connecting assembly of the present invention after the connection with the car seat is disconnected in the middle gear position use state (the car seat is not shown, the release button is pressed, the third lock mechanism is unlocked, the first lock mechanism is unlocked, and the second lock mechanism is locked);

fig. 18 is a schematic structural view of the inside of the inner tube after the ISOFIX connecting assembly is disconnected from the car seat in the middle gear position use state (the car seat is not shown, and the release button is pressed, the third lock mechanism is unlocked, the first lock mechanism is unlocked, and the second lock mechanism is locked);

fig. 19 is a schematic diagram of an external structure of the ISOFIX connecting assembly of the present invention in a middle shift position, after the connection with the car seat is broken, and the inner tube slides in a direction of retracting into the outer tube (the car seat is not shown, the release button is released, the third locking mechanism is unlocked, the first locking mechanism is unlocked, and the second locking mechanism is locked);

fig. 20 is a schematic structural view of the inside of the inner tube after the ISOFIX connecting assembly of the present invention is disconnected from the car seat in the middle shift position use state and the inner tube is slid in the direction of retracting into the outer tube (the car seat is not shown, the release button is released, the third locking mechanism is unlocked, the first locking mechanism is unlocked, and the second locking mechanism is locked).

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

The child car seat comprises a seat body and an ISOFIX connecting assembly arranged on the seat body, as shown in fig. 1-20, the ISOFIX connecting assembly comprises an outer pipe 1 connected with the seat body and an inner pipe 2 arranged in the outer pipe 1 in a sliding mode along the length extending direction of the outer pipe 1, and the outer pipe 1 and the inner pipe 2 both extend along the front-back direction. The ISOFIX connecting assembly has an initial state in which the inner tube 2 is completely retracted into the outer tube 1 and a connecting state in which the inner tube 2 maximally protrudes outside the outer tube 1, and further comprises a first locking mechanism for locking the ISOFIX connecting assembly in the initial state and the connecting state, respectively, a second locking mechanism for preventing the inner tube 2 from sliding in a direction protruding out of the outer tube 1, a third locking mechanism and an unlocking mechanism for connecting and locking with a car seat.

The first lock mechanism includes a first lock member 31 rotatably and slidably disposed in the inner tube 2 relative to the inner tube 2, and a first lock groove 11 and a second lock groove 12 respectively disposed on the outer tube 1, the first lock member 31 has a first lock tongue 311 and a second lock tongue 312, the first lock tongue 311 is provided with a first contact surface 311a, and the second lock tongue 312 is provided with a second contact surface 312 a. When the ISOFIX connecting assembly is in the initial state and the first lock mechanism is in the locked state, the first lock tongue 311 and the second lock tongue 312 are both located in the first lock groove 11, and the first contact surface 311a abuts against the rear end of the first lock groove 11, so that the inner tube 2 can be prevented from sliding in the direction extending out of the outer tube 1, as shown in fig. 3 to 5; when the ISOFIX connecting assembly is in a connected state and the first locking mechanism is in a locked state, the first locking tongue 311 and the second locking tongue 312 are both located in the second locking groove 12, and the second contact surface 312a abuts against the front end of the second locking groove 12, so that the inner tube 2 is prevented from sliding in a direction of retracting into the outer tube 1, as shown in fig. 8 to 10. When the first lock mechanism is in the unlocked state, the first lock tongue 311 and the second lock tongue 312 are both disengaged from the first lock groove 11 and the second lock groove 12.

In this embodiment, the first contact surface 311a is disposed at the rear of the first latch tongue 311, and the front of the first latch tongue 311 is an inclined surface inclined upward from front to rear. The second contact surface 312a is disposed at the front of the second latch tongue 312, and the rear of the second latch tongue 312 is a slope inclined downward from front to rear.

The first locking mechanism further includes a second elastic member 32 for urging the first locking member 31 to return from the unlocked state to the locked state, and in this embodiment, the second elastic member 32 is a compression spring.

The second lock mechanism comprises a second locking piece 41 which can be rotatably arranged in the inner pipe 2 and a third locking groove 13 which is arranged on the outer pipe 1, the third locking groove 13 is arranged in a plurality at intervals along the length extending direction of the outer pipe 1, a third locking bolt 411 is arranged on the second locking piece 41, and the third locking groove 13 is matched with the third locking bolt 411. When the second lock mechanism is in a locked state, the third bolt 411 is inserted into one of the third lock grooves 13, and when the third bolt 411 is in a different third lock groove 13, the ISOFIX connection assembly is in a different gear position; when the second lock mechanism is in the unlock state, the third latch tongue 411 is disengaged from the third lock groove 13. Specifically, the rear end face of the third lock tongue 411 is a straight face, when the second lock mechanism is in a locked state, the straight face is perpendicular to the sliding direction of the inner tube 2, and the front end face of the third lock tongue 411 is an inclined face inclined upward from front to back.

The second lock mechanism further includes a third elastic member 42 for driving the second locking member 41 to return from the unlocked state to the locked state, in this embodiment, the third elastic member 42 also adopts a compression spring, and two end portions of the compression spring respectively abut against the second locking member 41 and the inner tube 2.

The third lock mechanism includes a third locking member 5 rotatably provided in the inner tube 2, the third locking member 5 having a locking hook 51. When the third locking mechanism is in the locked state, the latch hook 51 is connected to the anchoring mechanism on the car seat, at this time, the child car seat is fixed on the car seat; when the third lock mechanism is in the unlocked state, the latch hook 51 is separated from the anchor mechanism, and the child car seat can be detached from the car seat at this time.

The unlocking mechanism includes a release button 61 slidably provided on the seat body, a driver 62 slidably provided in the inner tube 2 in the front-rear direction, and a flexible link 63 having both ends connected to the driver 62 and the release button 61, respectively. In this embodiment, the flexible coupling 63 is a pull cable.

The first locking part 31 can be rotatably arranged on the driving part 62, the inner tube 2 is fixedly provided with a fixed column 21, and the fixed column 21 is matched with the first locking part 31. Specifically, the first locking member 31 is provided with a first engaging portion 313, and the outer cylindrical surface of the fixing post 21 abuts against the first engaging portion 313. In this embodiment, the first engaging portion 313 is a slope extending obliquely upward from front to back, and an outer cylindrical surface of the fixing post 21 abuts against the slope. When locking ISOFIX coupling assembling through first latch mechanism, can order about first latch mechanism unblock through operation release mechanism, specific unblock process is: when the release button 61 is pressed, the driving member 62 is pulled by the pulling cable to slide forward, so as to drive the first locking member 31 to slide forward, in this process, the first locking member 31 is driven to rotate relative to the driving member 62 by the matching of the fixing post 21 and the first matching portion 313, so that the first locking tongue 311 and the second locking tongue 312 are disengaged from the first locking groove 11 or the second locking groove 12, and the first locking mechanism is unlocked.

The unlocking mechanism further includes a tension spring 64, one end portion of the tension spring 64 being provided on the third locking member 5, and the other end portion of the tension spring 64 being provided on the driving member 62.

When the ISOFIX connection assembly is locked in the initial connection state by the first lock mechanism, the third locking member 5 can be connected to the anchoring mechanism on the car seat, so that the inner tube 2 is prevented from being retracted into the outer tube 1 when the third locking member 5 is connected to the anchoring mechanism. When the third locking piece 5 is connected with the anchoring mechanism, the third locking piece 5 rotates relative to the inner tube 2, the driving piece 62 is pulled by the tension spring 64 to slide backwards, so that the first locking piece 31 also synchronously slides backwards, in the process, the first locking piece 31 rotates relative to the driving piece 62 through the matching of the third contact surface 312b arranged at the rear part of the second lock tongue 312 and the second lock groove 12, so that the first lock tongue 31 and the second lock tongue 32 gradually disengage from the second lock groove 12, and when the third lock mechanism is locked, the first lock mechanism is unlocked. In this embodiment, the third contact surface 312b is an inclined surface located at the rear of the second latch tongue 312.

The third locking member 5 is provided with a second matching portion 52, the driving member 62 is provided with a third matching portion 621, when the third locking mechanism is in the locking state, the third matching portion 621 is clamped into the second matching portion 52, and when the third locking mechanism is unlocked, the third matching portion 621 is far away from the second matching portion 52.

Can order about third lock mechanism unblock through operation release mechanism, specific unblock process is: when the release button 61 is pressed down and the driving member 62 is pulled by the traction cable to slide forward, the third matching part 621 is gradually pulled out of the second matching part 52, and after the third matching part 621 is completely pulled out of the second matching part 52, and the release button 61 is continuously pressed, the driving member 62 slides forward and can pull the third locking member 5 to rotate through the tension spring 64 until the connection between the locking hook 51 and the anchoring mechanism is disconnected, and the third locking mechanism is unlocked.

The unlocking mechanism further comprises a fourth elastic member 65 for driving the release button 61 to reset, in this embodiment, the fourth elastic member 65 is a compression spring, and two end portions of the compression spring are respectively disposed on the seat body and the release button 61.

The ISOFIX connection assembly further comprises a first elastic member 8 for driving the inner tube 2 to be maximally protruded to the outside of the outer tube 1 after the first locking mechanism is unlocked when the ISOFIX connection assembly is in the initial state. The first elastic part 8 adopts a pressure spring, and two end parts of the pressure spring are respectively and fixedly arranged on the inner pipe 2 and the outer pipe 1. In this embodiment, the first elastic member 8 is sleeved on the flexible connecting member 63.

The outer tube 1 of the ISOFIX connecting assembly is fixedly arranged on the left side and the right side of the seat body respectively, the inner tube 2 is arranged in the outer tube 1 on each side in a sliding mode, the first locking piece 31, the second locking piece 41, the third locking piece 5 and the driving piece 62 are arranged in the inner tube 2 on each side respectively, the driving pieces 62 on the two sides are connected with the release button 61 through traction cables respectively, and the release button 61 is arranged on the front portion of the seat body and is convenient to operate. The ISOFIX connecting component also comprises a synchronous connecting rod 7, two end parts of which are respectively fixedly connected to the inner pipes 2 at two sides and used for driving the inner pipes 2 at two sides to synchronously slide relative to the outer pipe 1. Thus, when the release button 61 is pressed, the first locking mechanism and the third locking mechanism on the two sides can be synchronously unlocked, and the inner pipes 2 on the two sides can synchronously slide relative to the outer pipe 1 to extend out of the outer pipe 1 or retract into the outer pipe 1 through the synchronous connecting rod 7.

The outer tubes 1 on the left and right sides are respectively provided with sliding grooves 14 extending in the front-rear direction, the two end portions of the synchronous connecting rod 7 penetrate through the sliding grooves 14 and can slide along the length extending direction of the sliding grooves 14, and the sliding grooves 14 can limit the sliding length of the inner tube 2 relative to the outer tube 1.

The working principle of the child car seat is as follows:

when the child car seat is not mounted on the car seat, the ISOFIX connection assembly is in an initial state for convenient storage, i.e. the inner tube 2 is fully retracted into the outer tube 1, and the first lock mechanism is in a locked state, and the first lock tongue 31 and the second lock tongue 32 are both located in the first lock groove 11. The second lock mechanism is in an unlocked state, and the third latch tongue 411 of the second locking piece 41 abuts against the inner wall of the outer tube 1. As shown in fig. 3 to 5.

When the child car seat needs to be installed on the car seat, the release button 61 is pressed, the driving pieces 62 on the two sides are pulled by the traction cable to slide forwards, the first locking piece 31 is driven to slide forwards, in the process, the first locking piece 31 is driven to rotate relative to the driving pieces 62 through the matching of the fixed column 21 and the first matching portion 313, the first lock tongue 311 and the second lock tongue 312 are enabled to be disengaged from the first lock groove 11, and the first locking mechanism is unlocked. The driving member 62 is provided with a pressing portion 622, the second locking member 41 is provided with a blocking portion 412, and in the unlocking process of the first locking mechanism, when the driving member 62 slides forwards, the pressing portion 622 on the driving member 62 is pressed on the blocking portion 412 of the second locking member 41, so that the second locking member 41 cannot rotate relative to the inner tube 2, and the second locking mechanism is always kept in an unlocked state. When the first locking mechanisms on the two sides are unlocked, the inner tube 2 is ejected out of the outer tube 1 under the action of the elastic force of the first elastic member 8, and the length of the inner tube 2 extending out of the outer tube 1 is maximized. As shown in fig. 6 and 7.

When the release button 61 is released, the release button 61 is reset, the driving member 62 slides reversely and resets under the action of the tension spring 64, the first locking member 31 rotates reversely under the action of the elastic force of the second elastic member 32, so that the first locking mechanism is locked again, the ISOFIX connection assembly is in a connection state, and at the moment, the first locking tongue 311 and the second locking tongue 312 are both positioned in the second locking groove 12, and in this state, the second locking member 41 is blocked by the inner wall of the outer tube 1, and the second locking mechanism still keeps an unlocked state. As shown in fig. 8 to 10.

When the ISOFIX connecting assembly is in a connected state, the third locking piece 5 can be connected with an anchoring mechanism on an automobile seat, when the ISOFIX connecting assembly is connected, the third locking piece 5 rotates relative to the inner pipe 2, the driving piece 62 is pulled to slide backwards through the tension spring 64, so that the first locking piece 31 also slides backwards synchronously, in the process, the first locking piece 31 rotates relative to the driving piece 62 through the matching of the third contact surface 312b arranged at the rear part of the second lock tongue 312 and the second lock groove 12, so that the first lock tongue 31 and the second lock tongue 32 gradually come off from the second lock groove 12, when the third lock mechanism is locked, the first lock mechanism is unlocked, and the second lock mechanism 41 still maintains an unlocked state due to the blocking of the inner wall of the outer pipe 1. The inner tube 2 can now be slid relative to the outer tube 1 in a direction to retract into the outer tube 1 so that the ISOFIX connection assembly is in place, as shown in figures 11 and 12.

When the ISOFIX connecting assembly is located at the position where the length of the inner tube 2 extending out of the outer tube 1 reaches the maximum, namely the position of the ISOFIX connecting assembly is used, namely the ISOFIX connecting assembly is located at the position of the maximum gear position, the third lock mechanism is locked, the first lock mechanism and the second lock mechanism are both in an unlocked state, and when the automobile collides, the maximum sliding distance of the inner tube 2 can be limited through the matching of the sliding groove 14 and the synchronous connecting rod 7 so as to avoid colliding with a front row seat. As shown in fig. 11 and 12.

When the ISOFIX connecting assembly is in a maximum gear position using state and the connection between the ISOFIX connecting assembly and the car seat needs to be disconnected, the release button 61 is pressed, the driving piece 62 is pulled to slide forwards through the traction cable, so that the third matching part 621 is gradually separated from the second matching part 52, after the third matching part 621 is completely separated from the second matching part 52, and when the release button 61 is continuously pressed, the driving piece 62 slides forwards, the third locking piece 5 can be pulled to rotate through the tension spring 64 until the connection between the locking hook 51 and the anchoring mechanism is separated, and the third locking mechanism is unlocked. When the driving member 62 slides forwards, the first locking member 31 is driven to slide forwards synchronously, the first locking tongue 311 and the second locking tongue 312 gradually enter the second locking groove 12, and when the third locking mechanism is unlocked, the first locking mechanism locks the ISOFIX connecting assembly in the connected state again. When the driving member 62 slides forward for a certain distance, the pressing portion 622 on the driving member 62 presses the blocking portion 412 of the second locking member 41, so that the second locking member 41 cannot rotate relative to the inner tube 2, and the second lock mechanism is always kept in the unlocked state. At this time, the release button 61 is released, the release button 61 is reset, since the fixed end of the third locking member 5 connected to the tension spring 64 is released, the driving member 62 keeps the current position or has only a small reset, the pressing portion 622 on the driving member 62 is still pressed on the blocking portion 412 of the second locking member 41, the second locking mechanism still keeps the unlocking state, the first locking mechanism is still in the locking state, the inner tube 2 cannot slide in the direction of extending out of the outer tube 1 due to the cooperation of the chute 14 and the synchronization link 7, the first locking mechanism locks the ISOFIX connection assembly in the connection state, and the inner tube 2 cannot slide in the direction of retracting into the outer tube 1, as shown in fig. 13 and 14.

When the inner pipe 2 needs to be retracted into the outer pipe 1 after the ISOFIX connecting assembly is disconnected with the automobile seat in the use state of the ISOFIX connecting assembly at the maximum gear position, the unlocking mechanism needs to be continuously operated to unlock the first locking mechanism, and the process of unlocking the first locking mechanism is the same as the above.

When the position that ISOFIX connecting assembly was in that inner tube 2 retracts to outer tube 1 certain length and reaches is this ISOFIX connecting assembly's position of use, when the ISOFIX connecting assembly was in middle gear position department promptly, the locking of third latch mechanism, second locking piece 41 rotated under the effect of the elastic force of third elastic component 42 for third spring bolt 411 inserts and establishes in third keyway 13, and the locking of second latch mechanism promptly, inner tube 2 can not slide to the direction that stretches out outer tube 1. As shown in fig. 15 and 16.

When the ISOFIX connecting assembly is in a middle gear position using state, when the connection between the ISOFIX connecting assembly and the automobile seat needs to be disconnected, the release button 61 is pressed, the driving piece 62 is pulled to slide forwards through the traction cable, the driving piece 62 is provided with a slot 623, the blocking part 412 on the second locking piece 41 enters the slot 623, so that the driving piece 62 is not blocked to slide forwards continuously, the third matching part 621 is gradually separated from the second matching part 52, and when the release button 61 is continuously pressed after the third matching part 621 is completely separated from the second matching part 52, the driving piece 62 slides forwards, the third locking piece 5 can be pulled to rotate through the tension spring 64 until the connection between the lock hook 51 and the anchoring mechanism is separated, and the third locking mechanism is unlocked. The release button 61 is released and the release button 61 is reset and the actuator 62 remains in its current state or only slightly reset and the second locking mechanism remains locked at all times as shown in fig. 17 and 18.

After the connection between the ISOFIX connecting assembly and the car seat is disconnected in the use state of the ISOFIX connecting assembly in the intermediate gear position, when the inner tube 2 needs to be retracted into the outer tube 1, the inner tube 2 slides, the second locking member 41 rotates relative to the inner tube 2 through the matching of the inclined surface at the front part of the second locking member 41 and the third locking groove 13 until the third latch tongue 411 is disengaged from the third locking groove 13, the second locking mechanism is unlocked, and the inner tube 2 can be retracted into the outer tube 1, as shown in fig. 19 and 20.

The front-rear direction mentioned above is defined as the front-rear direction of the car after the child car seat is attached to the car seat.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A children's car seat, includes the seat body and sets up ISOFIX coupling assembling on the seat body, ISOFIX coupling assembling includes the outer tube and can follow the length extending direction of outer tube sets up with sliding in the inner tube in the outer tube, its characterized in that: the ISOFIX connecting assembly is provided with an initial state that the inner pipe is completely retracted into the outer pipe and a connection state that the inner pipe is maximally extended out of the outer pipe, the ISOFIX connecting assembly further comprises a first locking mechanism used for locking the ISOFIX connecting assembly in the initial state and the connection state respectively, and an unlocking mechanism used for driving the first locking mechanism to be unlocked, the unlocking mechanism comprises a release button which can be arranged on the seat body in a sliding manner, a driving piece which can be arranged in the inner pipe in a sliding manner along the length extension direction of the inner pipe, and a flexible connecting piece of which two end parts are respectively connected with the release button and the driving piece, the first locking mechanism comprises a first locking piece which can be arranged on the driving piece in a rotating manner, and when the release button is pressed to unlock the first locking mechanism, the driving piece is pulled to slide relative to the inner pipe through the flexible connecting piece, the ISOFIX connecting assembly further comprises a first elastic piece which is used for driving the inner pipe to extend out of the outer pipe to the maximum length after the first locking mechanism is unlocked in the initial state of the ISOFIX connecting assembly.

2. A child car seat according to claim 1, wherein: be provided with first spring bolt and second spring bolt on the first locking piece, be provided with first locked groove and second locked groove on the outer tube respectively, work as when ISOFIX coupling assembling locking is in initial condition, first spring bolt with the second spring bolt all is located in the first locked groove, and sets up first contact surface on the first spring bolt with first locked groove is supported and is established mutually, work as when ISOFIX coupling assembling locking is in connected state, first spring bolt with the second spring bolt all is located in the second locked groove, sets up second contact surface on the second spring bolt with the second locked groove is supported and is established, work as when first lock machanism is in the unblock state, first spring bolt with the second spring bolt all follows first locked groove with deviate from in the second locked groove.

3. A child car seat according to claim 1, wherein: the inner tube is fixedly provided with a fixing column, the first locking piece is provided with a first matching portion, and an outer cylindrical surface of the fixing column is abutted to the first matching portion.

4. A child car seat according to claim 1, wherein: ISOFIX coupling assembling still is including being used for preventing the inner tube is to stretching out the gliding second latch mechanism of direction of outer tube, second latch mechanism is including setting up with rotating second locking piece in the inner tube, setting are in third locked groove on the outer tube, the second locking piece has the third spring bolt, the third locked groove with the third spring bolt cooperatees, works as when second latch mechanism is in the locking state, the third spring bolt is inserted and is established in the third locked groove, works as when second latch mechanism is in the unlocking state, the third spring bolt is followed deviate from in the third locked groove, works as when second latch mechanism is in the locking state, first latch mechanism is in the unlocking state.

5. A child car seat according to claim 4, wherein: when ISOFIX coupling assembling locks when initial condition and connected state, second lock mechanism all is in the unblock state, the second locking piece is located in the inner tube just the third spring bolt is supported and is established on the inner wall of outer tube.

6. A child car seat according to claim 4, wherein: be provided with on the driving piece and press the splenium, be provided with the barrier part on the second locking piece, work as ISOFIX coupling assembling presses down under initial condition or connected state release button orders about during the unblock of first locking mechanism, the driving piece slides forward, press splenium pressure to establish on the barrier part, make second latch mechanism is in the unblock state.

7. A child car seat according to claim 4, wherein: be provided with the fluting on the driving piece, be provided with the stop part on the second locking piece, work as second latch mechanism is pressed under the locking condition release button makes when the driving piece slides forward, the stop part is located in the fluting, and can be relative the fluting slides.

8. A child car seat according to claim 1, wherein: the ISOFIX connecting assembly further comprises a third locking mechanism which can be connected with and locked with an automobile seat, the third locking mechanism comprises a third locking piece which can be rotatably arranged on the inner tube, the unlocking mechanism further comprises tension springs, two end parts of the tension springs are respectively connected with the driving piece and the third locking piece, a second matching part is arranged on the third locking piece, a third matching part is arranged on the driving piece, when the third locking mechanism is in a locking state, the third matching part is clamped into the second matching part, when the third locking mechanism is in an unlocking state, the third matching part is far away from the second matching part, when the ISOFIX connecting assembly is in a connecting state, the third locking piece can be connected with the automobile seat, when the third locking mechanism is in a locking state, the first locking mechanism is in an unlocking state, when the third lock mechanism is in an unlocked state, the first lock mechanism is in a locked state.

9. Child car seat according to claim 8, characterized in that: be provided with the second spring bolt on the first locking piece, be provided with the second locked groove on the outer tube, work as when ISOFIX coupling assembling locks when connected state, the second spring bolt is located in the second locked groove, the rear portion of second spring bolt has the third contact surface, works as the third locking piece with when car seat is connected, through the extension spring pulling the driving piece with first locking piece backward sliding, the third contact surface with the second locked groove cooperatees and makes first locking piece is relative the driving piece rotates, makes first locking mechanism unblock.

10. A child car seat according to claim 1, wherein: the outer tube is fixed respectively and is set up the left and right sides of seat body, and every side all be provided with sliding in the outer tube the inner tube, ISOFIX coupling assembling still includes both ends respectively fixed connection be used for ordering about both sides on the inner tube is synchronous relative the gliding synchronous connecting rod of outer tube.

11. A child car seat according to claim 10, wherein: the outer pipe on each side is provided with a sliding groove extending along the front-back direction, and the synchronous connecting rod penetrates through the sliding groove and can be arranged in a sliding mode along the length extending direction of the sliding groove.

12. A child car seat according to claim 1, wherein: the outer tube is fixedly arranged on the left side and the right side of the seat body respectively, the inner tube is arranged in the outer tube on each side in a sliding mode, the driving piece and the first locking piece are arranged in the inner tube on each side respectively, the release button is arranged on the front portion of the seat body in a sliding mode, and the driving pieces on the two sides are connected with the release button through the flexible connecting piece.