CN219564857U

CN219564857U - ISOFIX unlocking and adjusting device of child safety seat

Info

Publication number: CN219564857U
Application number: CN202320355500.1U
Authority: CN
Inventors: 魏辉
Original assignee: Manjike Zhongshan City Science And Technology Development Co ltd
Current assignee: Manjike Zhongshan City Science And Technology Development Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-08-22
Anticipated expiration: 2033-03-01

Abstract

The utility model relates to an ISOFIX unlocking and adjusting device of a child safety seat, which comprises a shell, an ISOFIX connecting assembly, a locking structure and a two-way locking structure, wherein the shell is provided with a locking structure; the shell is provided with a gear hole and a locking hole; the ISOFIX connecting component is arranged in the shell in a sliding manner and is movably connected with the locking structure; the two-way lock structure is connected with the locking structure to drive the ISOFIX connecting assembly to unlock. The ISOFIX unlocking and adjusting device disclosed by the utility model can not only ensure that the ISOFIX cannot shrink inwards before being locked in the process of mounting the child seat on the automobile seat, so that the mounting convenience of the child seat is improved; and the unlocking button can be pressed inwards to unlock and adjust only after the two lock buttons are rotated, so that potential safety hazards caused by manual misoperation are greatly reduced.

Description

ISOFIX unlocking and adjusting device of child safety seat

Technical Field

The utility model relates to the technical field of child safety seats, in particular to an ISOFIX unlocking and adjusting device of a child safety seat.

Background

Child safety seats are seats installed in automobiles and used for improving the riding safety of children; in the event of a collision or sudden deceleration of the car, the child safety seat can slow down the impact force on the child and limit the body movement of the child to reduce injury to them, ensuring the riding safety of the child.

Child safety seats are typically mounted on automobiles via ISOFIX systems. ISOFIX is a new standard for the placement of child seats in automobiles, specifically a system in which a child restraint system is connected to the vehicle. The function is to make the installation of the child seat quick and simple, and the rigid connection is safer. The ISOFIX equipped child seat can be easily secured into the ISOFIX interface of the car, increasing safety. However, most child safety seats on the market often have ISOFIX connectors that retract during installation into the car seat, resulting in inconvenient installation. Most of the existing ISOFIX connectors are low in safety in the locking and unlocking processes, and particularly after the ISOFIX connectors are fixedly connected with interfaces arranged on the automobile seat, the ISOFIX connectors can be unlocked easily through pulling down the locked buttons, so that the safety is low in the using process, and potential safety hazards are brought due to misoperation easily.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides an ISOFIX unlocking and adjusting device of a child safety seat with a locking mechanism and a two-way locking mechanism.

The technical scheme adopted by the utility model is as follows: an ISOFIX unlocking and adjusting device of a child safety seat comprises a shell, an ISOFIX connecting assembly, a locking structure and a two-way locking structure; wherein,,

the shell is provided with a gear hole and a locking hole;

the ISOFIX connecting component is arranged in the shell in a sliding manner and is movably connected with the locking structure, and the ISOFIX connecting component comprises an ISOFIX clamping hook, a connecting iron sheet and sliding plastic;

the locking structure comprises a gear iron sheet and a locking iron sheet which are mutually hinged, a return pressure spring is arranged between the gear iron sheet and the locking iron sheet, and the sliding plastic drives the gear iron sheet and the locking iron sheet to be respectively locked or separated from the gear hole and the locking hole;

the two-way lock structure is connected with the locking structure to drive the ISOFIX connecting assembly to unlock.

Preferably, the control pin is movably arranged at the other end of the locking iron sheet opposite to the return pressure spring, and a V-shaped through hole for the control pin to pass through is arranged at the rear end of the locking iron sheet.

Preferably, the gear iron sheet and the locking iron sheet are rotationally connected through a rotation pin; the gear iron sheet outwards extends towards one side of the locking iron sheet to form a first compression spring clamping position, the locking iron sheet outwards extends towards one side of the gear iron sheet to form a second compression spring clamping position, and two ends of the return compression spring are respectively connected with the first compression spring clamping position and the second compression spring clamping position.

Preferably, the top of the gear iron sheet outwards extends to form a gear convex part locked or separated from the gear hole, and the bottom of the locking iron sheet outwards extends to form a locking convex part locked or separated from the locking hole.

Preferably, ISOFIX coupling assembling include ISOFIX pothook, connect iron sheet and slip plastic, ISOFIX pothook rotatable setting at the front end of connecting the iron sheet through the extension spring, slip plastic and the rear end fixed connection of connecting the iron sheet.

Preferably, the secondary lock structure comprises a button seat, an unlocking button and a secondary lock button, wherein the unlocking button drives the ISOFIX connecting assembly to unlock through the control pin connection with the locking structure; the unlocking button can be automatically rebounded and arranged in the button seat; the two lock buttons can automatically rebound and hinge in the unlocking button to control the pressing adjustment of the unlocking button.

Preferably, the button seat extends to be provided with a limiting convex plate at the lower direction of the opening of the button seat, and a limiting block for supporting the limiting convex plate of the button seat is arranged at the bottom of the two lock buttons.

Preferably, a button pressure spring capable of enabling the unlocking button to rebound automatically is arranged between the unlocking button and the button seat.

Preferably, a two-way lock pressure spring is arranged between the unlocking button and the two-way lock button.

Preferably, one end of the control pin is fixedly connected with the sliding plastic, and the other end of the control pin sequentially penetrates through the V-shaped through hole and the button seat and is finally fixedly connected with the unlocking button.

Preferably, the shell comprises a front cover iron sheet and a rear cover iron sheet, and two ends of the rotating pin are respectively fixed on the front cover iron sheet and the rear cover iron sheet.

Compared with the prior art, the utility model has the following advantages:

1. according to the ISOFIX unlocking and adjusting device, the locking iron sheet of the locking structure is used for locking the locking hole of the shell, so that the ISOFIX cannot shrink inwards before being locked in the process of installing the child seat on the automobile seat, and the installation convenience of the child seat is improved.

2. According to the ISOFIX unlocking and adjusting device, the unlocking button of the secondary lock structure and the secondary lock button are matched, and the unlocking button can be pressed inwards to unlock and adjust only after the secondary lock button is rotated, so that potential safety hazards caused by manual misoperation can be greatly reduced.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the structure of the present utility model.

Fig. 3 is a diagram of the positional relationship between the locking structure and the ISOFIX connection assembly when the ISOFIX hook is in the unlocked state.

Fig. 4 is a diagram showing a positional relationship between the locking structure and the ISOFIX connecting assembly when the ISOFIX hook is hooked.

Fig. 5 is a diagram showing the positional relationship between the lock structure and the ISOFIX connection assembly after the two lock structures are pressed.

Fig. 6 is a front view of the two-way lock structure.

Fig. 7 is a schematic view taken along A-A of fig. 6.

FIG. 8 is an internal schematic view of the two-way lock structure after rotating the two-way lock button upward.

The reference numerals in the figures are:

the novel lock comprises a 1-shell, a 11-gear hole, a 12-locking hole, a 13-front cover iron sheet, a 14-rear cover iron sheet, a 2-ISOFIX connecting component, a 21-ISOFIX clamping hook, a 211-tension spring hole, a 22-connecting iron sheet, 23-sliding plastic, a 231-baffle push plate, a 24-tension spring, a 3-locking structure, a 31-gear iron sheet, a 311-gear convex part, a 32-locking iron sheet, a 321-locking convex part, a 33-rotation pin, a 34-return pressure spring, a 35-pressure spring clamping part I, a 36-pressure spring clamping part II, a 37-control pin, a 38-V-shaped through hole, a 4-two-way locking structure, a 41-button seat, a 411-limiting convex plate, a 42-unlocking button, a 43-two-way locking button, a 431-limiting block, a 432-anti-skid pattern, a 44-button pressure spring and a 45-two-way pressure spring.

Detailed Description

In order to enhance the understanding of the present utility model, the present utility model will be further described in detail with reference to the embodiments and drawings. The utility model can be implemented by the following modes:

referring to fig. 1-8, a child safety seat ISOFIX unlocking and adjusting device comprises a housing 1, an ISOFIX connecting assembly 2, a locking structure 3 and a two-way locking structure 4.

The gear hole 11 and the locking hole 12 are arranged on the shell 1, the gear hole 11 is arranged at the top of the shell 1, and the locking hole 12 is arranged at the bottom of the shell 1; the shell 1 comprises a front cover iron sheet 13 and a rear cover iron sheet 14, and the front cover iron sheet 13 and the rear cover iron sheet 14 are mutually covered to form a cavity capable of accommodating the ISOFIX connecting assembly 2 and the locking structure 3.

The ISOFIX connecting assembly 2 is arranged in the shell 1 in a sliding manner and is movably connected with the locking structure 3; ISOFIX coupling assembling 2 include ISOFIX pothook 21, connect iron sheet 22 and slip plastic 23, ISOFIX pothook 21 rotationally set up the front end at connecting iron sheet 22 through extension spring 24, extension spring 24 one end be connected with extension spring hole 211 at ISOFIX pothook 21 top, the other end is connected with connecting iron sheet 22 fixed connection. The sliding plastic 23 is fixedly connected with the rear end of the connecting iron sheet 22. When the ISOFIX hook 21 hooks the insertion guide on the automobile, the ISOFIX hook 21 pulls the tension spring 24, so that the connecting iron piece 22 is pulled to drive the sliding plastic 23 to move forwards.

The locking structure 3 is arranged between the ISOFIX connecting assembly 2 and the front cover iron sheet 13. The locking structure 3 comprises a gear iron sheet 31 and a locking iron sheet 32 which are hinged with each other. The gear iron sheet 31 and the locking iron sheet 32 are rotationally connected through a rotation pin 33; both ends of the rotation pin 33 are fixed to the front cover iron piece 13 and the rear cover iron piece 14, respectively. The gear iron sheet 31 and the locking iron sheet 32 are provided with a return pressure spring 34, and the return pressure spring 34 is arranged at the front ends of the gear iron sheet 31 and the locking iron sheet 32, and the concrete installation mode is as follows: the gear iron sheet 31 is outwards extended with a first compression spring clamping position 35 at one side facing the locking iron sheet 32, the locking iron sheet 32 is outwards extended with a second compression spring clamping position 36 at one side of the gear iron sheet 31, and two ends of the return compression spring 34 are respectively connected with the first compression spring clamping position 35 and the second compression spring clamping position 36. The locking iron sheet 32 is movably provided with a control pin 37 at the other end opposite to the return pressure spring 34, the rear end of the locking iron sheet 32 is provided with a V-shaped through hole 38 for the control pin 37 to pass through, and two ends of the control pin 37 are respectively connected with the two-way lock structure 4 and the sliding plastic 23. The top of the shift position iron sheet 31 is extended outwards to form a shift position protrusion 311 locked with or separated from the shift position hole 11, and the bottom of the locking iron sheet 32 is extended outwards to form a locking protrusion 321 locked with or separated from the locking hole 12. The sliding plastic 23 drives the gear iron sheet 31 and the locking iron sheet 32 to be respectively locked with or separated from the gear hole 11 and the locking hole 12.

The two-way lock structure 4 is connected with the control pin 37 of the locking structure 3 to drive the ISOFIX connecting assembly 2 to unlock. The two-way lock structure 4 is arranged outside the front cover iron sheet 13. The two-way lock structure 4 comprises a button seat 41, an unlocking button 42 and two-way lock buttons 43, wherein the button seat 41 is of a hollow structure with an opening, the unlocking button 42 can be automatically rebounded and arranged inside the button seat 41, and a button pressure spring 44 capable of enabling the unlocking button 42 to be automatically rebounded is arranged between the unlocking button 42 and the button seat 41. The secondary lock button 43 can automatically rebound and hinge in the unlocking button 42 to control the pressing adjustment of the unlocking button 42, the secondary lock button 43 and the unlocking button 42 are rotatably hinged through a bolt, and a secondary lock pressure spring 45 is arranged between the unlocking button 42 and the secondary lock button 43. The button seat 41 extends outwards below the opening of the button seat to form a limiting convex plate 411, and a limiting block 431 for supporting the limiting convex plate 411 of the button seat 41 is arranged at the bottom of the two lock buttons 43. One end of the control pin 37 is connected with the sliding plastic 23, and the other end sequentially passes through the V-shaped through hole 38 and the button seat 41 and finally is fixedly connected with the unlocking button 42. The outermost end of the two-way lock button 43 is provided with a non-slip pattern 432. In a normal state (as shown in fig. 7), the limiting block 431 in the two lock buttons 43 abuts against the limiting convex plate 411 in the button seat 41, and at this time, the unlock button 42 cannot be pressed and adjusted in the direction of the button seat 41; after the two ammonium lock buttons rotate upwards (as shown in fig. 8), the limiting block 431 in the two ammonium lock buttons 43 is separated from the limiting convex plate 411 in the button seat 41, and at this time, the unlocking button 42 can be pressed towards the button seat 41 for unlocking, so that the design can greatly reduce the potential safety hazard caused by manual misoperation.

Working principle:

when the ISOFIX hook 21 is in the unlocked state (as shown in fig. 3), the control pin 37 is located in the middle of the V-shaped through hole 38, and at this time, the locking protrusion 321 of the locking iron piece 32 and the gear protrusion 311 of the gear iron piece 31 are both opened outwards, so as to lock the locking hole 12 and the gear hole 11 on the housing 1 respectively. The locking iron sheet 32 of the locking structure 3 is used for locking the locking hole 12 of the shell 1, so that the child seat can be prevented from shrinking inwards before being locked in the process of being mounted on the automobile seat, and the mounting convenience of the child seat is improved.

When the ISOFIX hook 21 is hooked (as shown in fig. 4, that is, when the ISOFIX hook 21 hooks an insertion guide on a car), the ISOFIX hook 21 rotates downward to pull the tension spring 24, the sliding plastic 23 moves forward by the force of the tension spring 24, so that the connecting iron sheet 22 locks the ISOFIX hook 21, and the sliding plastic 23 drives the control pin 37 to move forward, at this time, the control pin 37 is located on the right of the V-shaped through hole 38, and the locking protrusion 321 of the locking iron sheet 32 retracts.

When the unlocking button 42 is pressed to the bottommost part (as shown in fig. 5), the control pin 37 is positioned at the rear end of the V-shaped through hole 38, and the ISOFIX hook 21 is still in an unlocked state; while the unlocking button 42 is pressed, the stopper push plate 231 on the slide plastic 23 pushes the shift iron piece 31 rearward, and both the locking protrusion 321 of the locking iron piece 32 and the shift protrusion 311 of the shift iron piece 31 retract inward.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The ISOFIX unlocking and adjusting device of the child safety seat is characterized by comprising a shell (1), an ISOFIX connecting assembly (2), a locking structure (3) and a two-way locking structure (4); wherein,,

the shell (1) is provided with a gear hole (11) and a locking hole (12);

the ISOFIX connecting assembly (2) is arranged in the shell (1) in a sliding manner and is movably connected with the locking structure (3), and the ISOFIX connecting assembly (2) comprises an ISOFIX clamping hook (21), a connecting iron sheet (22) and sliding plastic (23);

the locking structure (3) comprises a gear iron sheet (31) and a locking iron sheet (32) which are hinged with each other, a return pressure spring (34) is arranged between the gear iron sheet (31) and the locking iron sheet (32), and the sliding plastic (23) drives the gear iron sheet (31) and the locking iron sheet (32) to be respectively locked with or separated from the gear hole (11) and the locking hole (12);

the two-way lock structure (4) is connected with a control pin (37) of the locking structure (3) to drive the ISOFIX connecting assembly (2) to unlock.

2. The unlocking and adjusting device for the child safety seat ISOFIX according to claim 1 is characterized in that a control pin (37) is movably arranged at the other end of the locking iron sheet (32) opposite to the return pressure spring (34), and a V-shaped through hole (38) for the control pin (37) to pass is formed in the rear end of the locking iron sheet (32).

3. The unlocking and adjusting device for the child safety seat ISOFIX according to claim 2, characterized in that the shift iron piece (31) and the locking iron piece (32) are rotatably connected by a rotation pin (33); the gear iron sheet (31) outwards extends towards one side of the locking iron sheet (32) to form a first compression spring clamping position (35), the locking iron sheet (32) outwards extends towards one side of the gear iron sheet (31) to form a second compression spring clamping position (36), and two ends of the return compression spring (34) are respectively connected with the first compression spring clamping position (35) and the second compression spring clamping position (36).

4. A child safety seat ISOFIX unlocking and adjusting device according to claim 3, wherein the top of the shift iron plate (31) is extended outwards to form a shift lug (311) locked with or separated from the shift hole (11), and the bottom of the locking iron plate (32) is extended outwards to form a locking lug (321) locked with or separated from the locking hole (12).

5. The device for unlocking and adjusting the ISOFIX of the child safety seat according to any one of claims 1 to 4, wherein the ISOFIX clamping hook (21) is rotatably arranged at the front end of the connecting iron sheet (22) through a tension spring (24), and the sliding plastic (23) is fixedly connected with the rear end of the connecting iron sheet (22).

6. A child safety seat ISOFIX unlocking and adjusting device according to any one of claims 1-4, wherein the secondary lock structure (4) comprises a button seat (41), an unlocking button (42) and a secondary lock button (43), and the unlocking button (42) is connected with a control pin (37) of the locking structure (3) to drive the ISOFIX connecting assembly (2) to unlock; the unlocking button (42) can be automatically rebounded and arranged in the button seat (41); the two lock buttons (43) can automatically rebound and hinge in the unlocking button (42) to control the pressing adjustment of the unlocking button (42).

7. The device for unlocking and adjusting the ISOFIX of the child safety seat according to claim 6, wherein the button seat (41) is outwardly provided with a limiting convex plate (411) at the lower direction of the opening of the button seat, and a limiting block (431) for supporting the limiting convex plate (411) of the button seat (41) is arranged at the bottom of the two-way lock button (43).

8. The device for unlocking and adjusting the ISOFIX of the child safety seat according to claim 7, wherein a button compression spring (44) capable of automatically rebounding the unlocking button (42) is arranged between the unlocking button (42) and the button seat (41).

9. The device for unlocking and adjusting the ISOFIX of the child safety seat according to claim 8, wherein a secondary lock pressure spring (45) is arranged between the unlocking button (42) and the secondary lock button (43).

10. A child safety seat ISOFIX unlocking and adjusting device according to claim 3, wherein said housing (1) comprises a front cover iron piece (13) and a rear cover iron piece (14), and both ends of said rotation pin (33) are respectively fixed to said front cover iron piece (13) and said rear cover iron piece (14).